Mitsubishi G-50A Installation manual

Mitsubishi Electric
Air Conditioning Network System
Centralized Controller G-50A and
Integrated Centralized Control Software TG-2000A
Technical Manual
G-50A System Design Manual CONTENTS
1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Outline of product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.1 Centralized control with G-50A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.2 Centralized monitoring/controlling by Web browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.3 Centralized control by integrated software TG-2000A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1.4 Remote monitoring/controlling - Transmitting of abnormal mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Comparison table of function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3 Products list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4.1 Centralized controller : G-50A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4.2 Power supply unit : PAC50KUA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 System design flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Step 1 : Selection of air conditioning equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1.1 Limitation on system composition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1.2 Limitation on group setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Control objective devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3 Limitation on transmission line wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3.1 M-NET transmission line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3.2 A-control transmission line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.3 K-control transmission line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5 Step 2 : Selecting system management parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1 M-NET system structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1.1 Concept of the system controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1.2 Regarding power supply within the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1.3 Selecting the power supply unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1.4 When managing a K-control model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.5 Synchronized settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 External input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.1 External input signal function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.2 External output signal function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6 Step 3 : Construction of G-50A system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.1 Centralized monitoring using a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1.1 About floors, blocks, and groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.2 Centralized control PC (local arrangement) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.2 About password control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.2.1 Password control when using a web browser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.2.2 Password control when using TG-2000A software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3 About LAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.3.1 LAN types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.3.2 About the hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.3.3 LAN wire length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7 Step4 : Implementing annual/weekly schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.1 Weekly schedule using the G-50A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.2 Annual/weekly schedule using web monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.3 Weekly schedule of the integrated software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8 Step 5: Charging Function of Energy Charge Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.1 Outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.2 Selection of Charging Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.3 Basic Composition and Required Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
8.3.1 Manual input of electric power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
8.3.2 Watt-hour meter pulse counting (apportioning) method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.3.3 Measuring instrument pulse counting (direct reading) method . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8.3.4 Power consumption PC direct reading system (Apportioning system) . . . . . . . . . . . . . . . . . . . . . . . 49
8.4 Mechanism of Charge Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.4.1 Role of each item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.4.2 Apportioning calculation method of outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.4.3 Apportioned calculation of indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
8.4.4 Manual input of electric power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8.4.5 In the case of measuring instrument pulse counting (direct reading) method . . . . . . . . . . . . . . . . . 57
8.5 Output of Charging Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.6 Charging Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.7 Caution for Using Charging Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
9 Step 6: Energy Saving/Peak Cut Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.1 Outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.2 Energy Saving Control/Peak Cut Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.2.1 Energy saving control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.2.2 Peak cut control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.3 Energy Saving Control Status · History Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
9.3.1 Current energy saving control Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
9.3.2 Peak cut status history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
9.4 Energy Saving Control System Design Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
10 Step 7: Selection of Measuring Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
11 Step 8: General Purpose Equipment Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
11.1 Outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
11.2 System Design Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
11.2.1 Listing up of general-purpose equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
11.2.2 Determine the control items.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
11.2.3 PLC assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
11.2.4 Required materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
11.2.5 Setting of TG-2000A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12 Step 9: Determining Number of PLC Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
12.1 PLC Standard Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
12.2 PLC’s for Pulse Count Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
12.2.1 Restriction on the number of units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
12.2.2 Terminal connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
12.3 PLC for General-purpose Control Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
12.3.1 Restriction on the number of units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
12.3.2 Terminal connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
12.4 PLC Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.5 External View of Sequencer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
12.6 PLC Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
13 Step 10:Determination of Address for Air Conditioning Instrument and PC for Control . . . . . . . . . . 85
13.1 Address Setting for Air Conditioning Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13.2 Setting of LAN System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13.2.1 Setting method for connecting G-50A to exclusive LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
13.2.2 Setting method for connecting G-50A to existing LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
13.3 Setting for Remote Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
13.4 Setting of Abnormal Mail Transmission System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
13.4.1 Preparations before performing abnormal mail transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
13.4.2 Setting to perform abnormal mail transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
13.5 System Using Optical Cable for LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
14 Step 11: Confirmation of Other Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
14.1 Individual Browser Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
14.1.1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
14.1.2 User registration from administrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
14.1.3 Log-in from general users. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
14.2 Trend Data Output Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
14.2.1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
14.2.2 Preparation for outputting parameter files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
14.2.3 How to output CVS files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
14.2.4 Example of CSV files output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
14.2.5 Graphing trend data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
15 Initial Setting Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
15.1 What is the Initial Tool? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
15.2 Composition of Initial Setting Tool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
15.2.1 PC for initial settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
15.2.2 Connection to G-50A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
16 Other function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
16.1 Auto-Changeover Function (Automatic Changeover of Cooling/Heating Operation) . . . . . . . . . . . . . 103
16.1.1 Auto-changeover mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
12.1.2 Typical air conditioner group assigning mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
1. Safety Precautions
● Before using this unit, be sure you read “Safety Precaution” carefully for proper usage.
● The “Safety Precautions” provide very important points regarding safety. Make sure you follow them.
● Danger caused by erroneous operation and the resultant degree are classified in the following table.
WARNING
Describes the items that cause serious danger of injury or death.
CAUTION
Describes the items that cause danger of injury or damage of household effects.
NOTE: When handling your PC, peripheral equipment or air conditioning equipment, please observe
the warning and cautions of the installation manual and instruction manual.
WARNING
The user should never attempt to conduct
installation work or electrical/wiring work.
Ask these works for a specialist. Improper work
may cause an electric shock or fire.
Stop operation at an abnormal state.
Continuing operation under abnormal state may
cause an electric shock or fire. At abnormal
state, stop operation and contact your dealer.
Confirm that the power source is of the rated.
Neglecting this may cause a fire or machine
trouble.
Do not dispose the unit by yourself.
To dispose the unit, ask your dealer.
Never attempt to reform or repair by yourself.
Improper reform or repair may cause an electric
shock or fire. For repair, ask your dealer.
Confirm installation status.
Confirm that the unit is fastened at a stable
position not to allow it to fall down easily.
Do not move the unit by yourself.
Improper installation may cause an electric shock
or fire. Ask your dealer.
For your PC or peripheral equipment, read
the installation manual and instruction
manual carefully.
Erroneous handling may cause the fire and
machine trouble of the PC or peripheral
equipment.
Please read the installation manual and
instruction manual of air conditioner
controllers.
Erroneous handling may cause the fire or trouble
of the controllers relating to the air conditioner.
CAUTION
Do not place any dangerous matter around
the unit.
Do not install the unit at a place where
combustible gas may leak. Gas if stagnated
around the unit may cause a fire or explosion.
Do not use the unit under a special
environment.
Using at a place holding much machine oil,
steam or sulfur gas may deteriorate the
performance or damage the parts.
Do not wash the unit with water.
This may cause an electric shock or machine
trouble.
Do not press the switch with a sharp edge.
This may cause an electric shock or machine
trouble.
Do not spray pesticide or combustible gas to
the unit.
Refrain from placing combustible spray can near
the unit or spray it directly to the unit.
Otherwise a fire or explosion may be caused.
Do not use for a special purpose.
This product is designed for Mitsubishi Building
Air Conditioning Management system. Do not
use for other air conditioners or applications.
Neglecting this may cause erroneous operation.
1
CAUTION
Do not touch the button with wet fingers.
An electric shock or machine trouble may be
caused.
Do not disassemble this unit.
This may provide danger to touch the internal
circuit board, or cause machine trouble.
Do not wipe the unit with benzene, thinner or
chemical waste.
Neglecting this may change the color or machine
trouble. When it is seriously dirty, first remove it
with a squeezed cloth once damped with neutral
detergent dissolved in water, and then clean with
a dry cloth.
Do not use with other application or software.
Use this product exclusively for TG-2000A.
Otherwise erroneous action may be caused.
Please observe the operating temperature
range.
Using under the environment outside of the
operating temperature range may cause a
serious trouble. Confir m the operating
temperature range by the specification in the
instruction manual. If not listed, use a range of 0
~ 40°C.
Do not draw or twist the transmission line.
Neglecting this may cause a fire or machine
trouble.
Use a standard wire meeting the current
capacity for wiring.
Otherwise an electric leakage or fire may be
caused.
Be careful for children.
The inspection or adjustment work may be
accompanied with danger. Do not allow children
to enter the site.
When installing the unit in a hospital or communication station, provide sufficient protection
against noise.
Erroneous operation or machine trouble may be caused by the effect of inverter equipment, private
power generator, high-frequency medical equipment, wireless communication equipment, etc.
Conversely it may affect such equipment, creating noise to disturb medical treatment or image
broadcasting.
2
2. Outline of product
The G-50A is a centralized controller with higher function than that of conventional centralized controllers,
realizing to use for Web, industry first. One set of this product can control and monitor the indoor unit up to
50 sets.
Further this centralized controller can monitor and control even on the browser soft (Internet Explorer Ver5
or upper) of a PC connected with LAN or telephone circuit.
Besides the basic control function of packaged air conditioners, the addition of the optional function offers
“Annual schedule”, “Calculation of Air-Conditioning energy charging”, “Energy saving control” and other
various function required by air conditioning management.
LAN
G-50A
HUB
PLC
Indoor unit
50 sets max.
G-50A
40 sets max.
PC for centralized control
Branch office Bldg. A
Branch office Bldg.B
Dial up router
Public telephone
circuit network
Use of modem allows to monitor
air conditioning equipment of
plural buildings.
At the generation of abnormality,
the content is received by e-mail.
Internet
provider
Transmits abnormality mail.
Head office Bldg.
PC (with modem)
Figure 2-1 Composition image of G-50A system
3
2.1 Function
2.1.1 Centralized control with G-50A
The basic function of the G-50A unit is shown in the table below.
Table 2-1 List of centralized control function
Content
Switching start/stop collectively or for each group
Switching cool/dry/fan/auto/heat collectively or for each group
Setting room temperature collectively or for each group
Set temperature range Cool/dry : 19°C ~ 30°C
Heat
: 17°C ~ 28°C
Auto
: 17°C ~ 28°C
Switching air velocity in 4 steps collectively or for each group.
Air velocity
Switching in 4 steps vertically and for swing collectively or for each group
Air direction
(Selectable air direction differs depending on the model.)
Start/stop of interlocked
Switching start (Hi/Lo)/stop collectively or for each group when connecting with interlocked equipment (Lossnay).
equipment
(However, ventilation mode can not be selected for the interlocked equipment.)
Timer operation (Weekly)
Setting schedule operation per week to each group.
●Four operation patterns (P1~P4) can be set for one week.
(Note that the pattern 4 is that prohibiting local remote controller operation)
●Start/stop can be set three times a day.
●“Temperature setting” or “Setback operation” interlocked with timer operation can be performed.
Prohibition of local control
Selecting items for which local control is prohibited collectively or for each group.
(The items include start/stop, operation mode, temperature setting and filter sign.)
Filter sign display and reset
Resetting filter sign display collectively or for each group.
Abnormality record
Confirming the abnormality record for up to 64 cases in the past.
External input function
Controlling all air conditioners being managed for emergency stop/normal, start/stop, local remote
controller control prohibited/permitted by external charged contact signal (DV12V or DC24V).
(Requires the external input/output adapter, PAC-YG10HAA.)
Outputting “Run” when one or more air conditioners are under operation, while “Generating
External output function
abnormality” when one or more air conditioners are under abnormal status.
(Requires the external input/output adapter, PAC-YG10HAA.)
*The above specification may be changed depending on the equipment connected or combined.
Item
Start/stop
Operation mode
Temperature setting
Notice
4
● The control prohibition setting to K-control models is limited to start/stop, operation mode
and set temperature only. These three items can not be permitted individually.
● When this unit receives control prohibition from other system controller, you are kindly
requested to set to “Local prohibition setting” of the function setting No.4 = Not permitted (ON).
● For the group controlling Lossnay, prohibition setting is only applicable on the start/stop
and filter sign resetting control.
● The control prohibition of filter sign is displayed only at the lighting of filter sign.
2.1.2 Centralized monitoring/controlling by Web browser
(1) Features
1 Without using a specific software, air conditioners can be controlled by your desk top PC by setting
the system (Web browser function is an optional and needs license registration).
2 On the one Web screen, operation status can be monitored in a unit of G-50A (maximum 50 sets of
indoor unit).
3 In addition to the control unit with G-50A, control setting in a unit of block can be performed.
4 Annual schedule setting (Please refer to section 2,3 for function licence.) is possible.
G-50A
HUB
Power supply unit
On the Web browser perusal software (Internet
Explorer Ver5 or upper) of your PC, air conditioner
operation status can be monitored and controlled
in a unit of G-50A. By license registration, the
annual/weekly schedule function can also be
used.
PC for centralized control
Figure 2-2 Outline diagram of Web browser system composition
(2) Function list
In addition to the centralized control with G-50A unit, controlling in a unit of block can also be performed
by using the Web browser perusal software. The license registration required to use the various optional
function can be applied through this screen.
Table 2-2 List of Web monitoring function
Content
Switching start/stop collectively or for each group
Switching cool/dry/fan/auto/heat collectively or for each group
Setting room temperature collectively or for each group
Set temperature range Cool/dry : 19°C ~ 30°C
Heat
: 17°C ~ 28°C
Auto
: 19°C ~ 28°C
Switching air velocity in 4 steps collectively or for each group.
Air velocity
Switching in 4 steps vertically and for swing collectively or for each group
Air direction
(Selectable air direction differs depending on the model.)
Start/stop of interlocked
Switching start (Hi/Lo)/stop collectively or for each group when connecting with interlocked equipment (Lossnay).
equipment (Lossnay)
(However, ventilation mode can not be selected for the interlocked equipment.)
Prohibition of local control
Selecting the items for which local control is prohibited collectively or for each group.
(Items include start/stop, operation mode, temperature setting and filter sign.)
Filter sign display and reset
Filter sign display can be reset in each group or collectively.
Malfunction history
Malfunction history can be check up to 64 contents in both unit and communication error.
Annual/weekly schedule
Using the annual/weekly schedule function by license registration.
Malfunction e-mail history
E-mail history can be check up to 64 contents.
*The above specification may be changed depending on the equipment connected or combined.
*The block setting for Web display and the registration of block/group names require the initial setting tool.
*Without prior notice, the content may be changed as it is under developing.
*Please refer to section 2,3 for function licence.
Item
Start/stop
Operation mode
Temperature setting
Notice
● The initial setting tool is required for the block set registration to monitor with Web
browser. Setting of abnormal mail transmission and gateway address should be made
through the initial setting tool.
5
(3) Screen image
The screen images at Web monitoring are shown below.
6
Screen of air conditioner operation status
(Batch display of all groups)
Screen of air conditioner operation status
(Display in a unit of block)
Control screen
Screen to display unit under abnormal state
Screen to set weekly schedule
Screen to set annual schedule
(4) Explanation of icons
The air conditioner icons on the Web screen are shown below.
Item
Operation status of air
conditioner group
Operation status of
ventilation equipment group
(Lossnay)
Operation status of
interlocked equipment
Operating
Stopping
Icon
Abnormality generated
Filter sign generated
Operating
Stopping
Abnormality generated
Filter sign generated
Interlocked equipment operating Interlocked equipment stopping
Schedule status
Schedule provided
Schedule not provided
2.1.3 Centralized control by integrated software TG-2000A
(1) Features
1 The indoor unit up to 2,000 sets (40 sets of G-50A) can be controlled/monitored.
2 The layout display of air conditioners provides convenience in managing and controlling.
3 Annual schedule can be set (requiring license registration in the optional function).
4 Thanks to the apportioned function of electric power (requiring license registration in the optional function), your PC may collect the electric power
apportioned rate per indoor unit in CSV format.
Then, you can calculate the air conditioning charge per group, block and area by inputting the WHM amount manually or summing up the value of WHM
with the designated PLC (sequencer) and special program software (to count electric charge) or RS-485WHM.
And also, electric (non Air conditioner), gas, water apportioned rate can be collected (In case of PLC and electric power apportioned rate software only).
5 Installing the exclusive software (for general equipment control) on PLC allows monitoring/operating
the air conditioners and system equipment of other makes.
6 The energy conservation/peak-cut control function (optional function requiring license registration
separately) can reduce the energy consumption of air conditioning equipment.
By monitoring power consumption with PLC in addition, the peak-cut control corresponding to the
power consumption can be performed.
G-50A
Power supply unit
Watt Hour Meter (WHM)
with pulse oscillation device
PLC (Counting power consumption)
PLC (Controlling general equipment)
General equipment
(Chiller, pump or the like)
Monitoring, etc.
By installing the integrated software (TG-2000A)
on the PC for centralized control, the operation
status of all air conditioners being managed can
be monitored and controlled.*1 Through the
license registration in addition, the annual/weekly
schedule function and electric power apportioning
function can be used.
HUB
*1 Please refer to section 2,3 for function licence.
Install the integrated
software (TG-2000A).
Figure 2-3 Outline diagram of integrated soft system composition
1
The accounting block means a block for accounting configured by groups. As for details, refer to page 8.
7
(2) Caution against PC used with Integrated Software TG-2000A (Outline)
a) Items to be observed in selecting PC
Please select a PC of desktop type.
• Since a program is required to always be
operated under powered state depending on the
functions to be used, it is recommended not to
employ a note type PC but employ a desktop
type PC. It is because that the note type PC
tends to be filled with heat more easily than the
desk top type PC.
• Some note type models can not be operated for
a long time.
Recommend to install a UPS system on your PC.
• In order to prevent your data from being
damaged or missed by the instantaneous
stopping or failure of the power supply, it is
recommended to install a UPS (Uninterrupted
Power Source system) on your PC.
Especially when using the power apportioned
charging function, make sure to install the UPS
without fail.
Please prepare a PC/operating environment with specification allowing TG-2000A to exhibit its
function fully.
• Use the OS with the specified operating environment. With other OS than specified, TG-2000A may not
possibly be operated.
• Use a business model PC. In the case of the personal use model if employed, TG-2000A may not be
installed or trouble may be induced in its operation due to confliction with other application.
b) Items to be observed in use
Do not place your PC unit at such places as
below.
• Otherwise erroneous operation or malfunction
will be caused.
A dusty place; a place where shock or vibration
is applied; a place with unstable foundation; a
place near heating equipment; a place near
strong magnetic field like speaker; a place
exposed to direct sunlight for a long time; a
place likely causing falling down; a highly
humid place; a place with abrupt temperature
change; a place where heat is stagnated
Please do not clog the ventilation opening of
your PC.
• If clogged, the internal temperature will rise, and
a fire or machine trouble may be caused. Use
your PC under well ventilated condition.
Do not touch the ventilation opening of your PC.
• As the temperature of exhaust air through the
ventilation opening is higher than the room
temperature, a burn may be caused if touched.
When a note type PC is used, do not close its lid.
• Otherwise, the internal temperature rises due to
the stagnated heat which may cause a fire, burn
or machine trouble. Use the PC with the lid
opened under well ventilated condition.
For the PC and its peripheral equipment, be
sure to read their installation manuals or
instruction manuals.
• Erroneous handling may cause a fire or trouble
of the PC and its peripheral equipment.
Do not leave your PC unit or AC adapter being
covered with clothes or bedclothes near or on
a heating instrument.
• If placed, the internal temperature will rise
possibly causing a fire, burn or machine trouble.
When smoke, abnormal odor or sound is
generated from the PC unit, or the unit is
heated to such extent that you can not touch it
directly with your hand, pull out the plug of the
power cord from the plug socket immediately.
• Continuing to use under such state may cause a
fire, burn or electric shock. Consult your dealer
or PC maker in such case.
Please observe the caution on handling of the
hard disk, floppy disk and CD media.
• Do not give shock or vibration to the hard disk,
floppy disk or CD under operation.
• Do not turn the power source off or restart when
the hard disk, floppy disk or CD is operating.
• Please do not move your PC being powered.
c) For others
Regarding PC and its peripheral equipment;
• For the trouble of your PC or its peripheral equipment, ask the maker. Please note that our company is
not responsible for such trouble.
8
(3) Function list
By utilizing the software (TG-2000A) and collecting the data of each G-50A, the operation control can be performed
for up to 2000 sets in a unit of each floor or block on the PC screen.Please refer to section 2,3 for function licence.
Additionally by using PLC (Programmable Logic Controller), general equipment can be controlled in addition to the
electric power apportioning function and energy saving control.
Table 2-3 List of integrated software
Item
Start/stop
Operation mode
Temperature setting
Air velocity
Air direction
Start/stop of interlocked
equipment (Lossnay)
Local control prohibition
Annual/weekly schedule
Apportioned charging of electric
power (Manual input of WHM
amount)
Air conditioning energy charging
(Pulse account)
Power apportioned charging
(Direct collection of power
consumption by PC)
History record
Operation time monitoring
Masking of filter sign display
Defrost/Protection
Set temperature range limit
General purpose control function
Energy saving control
Peak cut control
Content
Switching start/stop for whole building, or in a unit of block, floor or group
Switching cool/dry/fan/auto/heat for whole building, or in a unit of block, floor or group.
Setting room temperature for whole building, or in a unit of block, floor or group
Set temperature range Cool/dry : 19°C ~ 30°C
Heat
: 17°C ~ 28°C
Auto
: 19°C ~ 28°C
Switching air velocity in 4 steps for whole building, or in a unit of block, floor or group.
Switching in 4 steps vertically and for swing for whole building, or in a unit of block, floor or group
(Selectable air direction differs depending on the model.)
Switching start (Hi/Lo)/stop for whole building, or in a unit of block, floor or group when
connecting with interlocked equipment (Lossnay). (However, ventilation mode can not be
selected for interlocked equipment.)
For whole building, or in a unit of block, floor or group, items for which local control is prohibited
can be selected. (The items include start/stop, operation mode, set temperature, filter sign reset.)
License registration allows you to use the annual/weekly schedule function.
Two seasonal setting (for summer and winter) can be used.
Through the license registration of G-50A unit, the power apportioning rate data per indoor unit
can be output in CSV format. Further by inputting the WHM amount manually, the power
consumed by each tenant can be calculated easily.
By registering license to G-50A, the air conditioning charge can be calculated through the
apportioning of power consumption based on the air conditioner operating record per tenant by
using PLC (Electric power counting software: PAC-YG11CDA) and WHM with pulse oscillation
device.
Through the registration of license number to G-50A unit, the power consumption of air
conditioner by each tenant can be calculated by using PS-485 watt-hour meter (only for the
designated models).
The abnormal history record can be stored up to 3,000 and operation history record can be
stored up to 10,000 respectively. The history record may be output as a daily and monthly record
in CSV format.
The integrated operation time of each indoor unit group*1 can be observed. It can be output as a file
in CSV format. (This function is only effective when registering the charging function for license.)
The automatic display of the filter sign may be suspended. (for a whole system collectively) In
this case, the state of the filter sign can be checked by manual operation.
With the schedule by a group unit, a temperature of 12 ~ 16˚C can be set under heating mode.
However, only the M-NET indoor units are objected, while K-control and A-control indoor units
are not objected. This function is effective only for ME remote controller system.
It is possible to control the set temperature range from the hand remote controller or the browser
screen of general users. The range limits include the lower limit value at cooling and the upper
limit value at heating.
By the way, this function is available only in the ME remote control system.
By installing the general purpose control software to PLC, it is possible to schedule the operation
and stop of other manufacturers’ air conditioners and facilities, and monitor them and monitor
their error.
By registering the license number to G-50A, energy saving control is available.
By setting the control contents per block from TG-2000A, energy saving rotation operation is
carried out in unit of group.
By registering the license number to G-50A, energy saving peak cut operation is available
according to the electricity use amount. This control requires PLC (electric power amount count
software) separately, and by connecting an electric power meter, energy saving operation can be
made according to the electricity use amount.
* The above functions are subject to change for improvement without notice.
Notice
1
●The operation prohibition settings to K control type are only operation/stop, operation
mode, and temperature setting. Whether prohibition or permission on these 3 items
cannot be set individually.
● In the group controlling LOSSNAY, only operation/stop, and filter sign reset operation can be
set for prohibition.
● Registration of the license number is carried out in unit of G-50A from the Web screen.
Operation time of minimum address unit is displayed in group.
9
(4) Screen images
The screen images on the integrated software are shown as follows.
Screen to display floor units
Screen to display block units
Screen to display whole building
Control setting screen
Screen to set weekly schedule
Screen to set annual schedule
10
(5) Explanation of icons
The air conditioner icons on the TG-2000A screen are as shown below.
Item
Operation status of air
conditioner group
Operation status of
ventilation equipment group
(Lossnay)
Operation status of interlocked
equipment Interlocked
equipment operating
Schedule status
Operation prohibition status
Others, system equipment
status
Operating
Stopping
Icon
Abnormality generated
Filter sign generated
Operating
Stopping
Abnormality generated
Filter sign generated
Abnormality outdoor unit
Abnormality outdoor
auxiliary unit
Interlocked equipment operating Interlocked equipment stopping
With schedule
Without schedule
Local remote controller
control prohibited
Operation prohibited
Abnormality G-50A
Abnormality K
transmission converter
Heat
2.1.4 Remote monitoring/controlling - Transmitting of abnormal mail
Remote controlling and monitoring can be performed from LAN, public telephone line and PHS if available.
The control items are same as that of Web monitoring/controlling (except general purpose equipment).
Contracting with an internet provider can transmit an error code to the address designated by you at the
generation of abnormality.
Notice
● The setting registration to transmit an error mail can only be made from the initial setting
tool.
11
2.2 Comparison table of function
Table 4-2 compares the function of G-50A unit, Web browser and TG-2000A as follows.
Table 2-4 Function comparison table
: per unit
:per group
: per block
Item
Content
Start/stop
Operation mode
Set
temperature
Start/stop
Cool (Dry)/Heat/Fan/Auto
Set temperature range (Unit 1°C)
Cool (Dry) : 19°C ~ 30°C
Heat
: 17°C ~ 28°C
Auto
: 19°C ~ 28°C
With the local remote controller (ME remote
controller), the lowest temperature is limited
to that above 19°C at cooling (dry) and the
highest temperature below 28°C at heating.
Air velocity
(Hi/Med. 1/Med. 2/Lo)
Air direction:
Vertical/swing/fixed louver
Prohibited items
Start/stop, Operation mode,
Set temperature, Filter resetting
Set
temperature
range limiting
function
Air velocity
switching
Air direction
switching
Prohibition of local
remote controller
operation
Group
registration
Filter sign
Abnormality
of air
conditioner
Schedule
Interlocked
ventilation
Ventilation
switching
Malfunction
record
Monitoring/displaying of filter sign,
allowing reset operation after cleaning.
Displays the condition of
abnormality/normal of air
conditioners, and allows to release
the abnormality.
[Weekly schedule]
Set unit: 1 minute
Daily operation frequency: 12 times
Items: Start/stop, Operation
mode, Set temperature,
Local control prohibition
[Annual schedule]
Allows setting a special day for 50 times a year.
[Daily schedule]
Allows changing daily schedule only
without changing weekly/annual schedules.
[Weekly schedule]
Set unit: 10 minute
Daily operation frequency: 3 times
Allows setting start/stop pattern
for 3 times and permit/prohibition
pattern for 1 time.
Interlocked setting of indoor unit
with ventilation equipment (Lossnay)
Switching the stop/Lo/Hi of interlocked
ventilation equipment (Lossnay).
Observing malfunction history
record about air conditioners.
: per G-50A
G-50A
:per floor
: for whole building
Controlling*7
Web browser
TG-2000A
(Reset)
(Reset)
(Reset)
*6
(Releasing
abnormality)
*6
(Releasing
abnormality)
*6
(Releasing
abnormality)
(Switching)
(Switching)
(Switching)
: Unable to comply with
Monitoring*7
G-50A
Web browser
(Grouping
information
monitor)
(Grouping
information
monitor)
(64 cases)
(64 cases)*3
: Not provided
TG-2000A
(Grouping
information
monitor)
(3000 cases)
Allows outputting
CSV file. *4
Operation
Observing operation history
record
(10,000 cases)*5
record about air conditioners
Integrated
Observing integrated operation
operation
time per indoor unit.
time*1
Allows printer and file outputting.
Electric power
Apportioning the electric power consumed
apportioning
by air conditioners based on the operation
(Charge block)
(Charge block)
function*1
time of indoor /outdoor units.
*1 This is valid only when the week schedule/year schedule license is registered.
*2 This is valid only when the electric power division license is registered.
*3 Up to 64 error contents can be checked for unit errors and communication errors respectively.
*4 Up to 3000 errors including errors (and others) detected by TG-2000A as well as unit errors and communication errors detected by G50A can be recorded. They can also be output in CSV format.
*5 10000 cases of the contents operated from TG-2000A can be recorded.
*6 Error release operation unit is as shown in the table, and all the erroneous units of G-50A system where error release operation is made
are released.
*7 Please refer to section 2,3 for function licence.
12
2.3 Products list
The functions to be coped with by G-50A, and necessary components, software and so forth are listed in
Table 2-5.
Table 2-5 Products list
Name
System component
Transmission
General
License
Centralized
Comprehensive Pulse count
line power
purpose control registration Sequencer
controller
software
software
supply unit
software
Centralized control
Web monitoring
Individual browser
Remote monitoring/operation
Year/week schedule
Simplified division accounting
Full division PLC method
accounting*13 RS-485 method
Meter accounting
(direct reading charging)
General purpose device control
Energy saving control
Peak cut control
Others
Contract
with
provider
Other
*10
*10
*11
*10
*1
*2
*3
*4
*12
*5
*6
*7
*8
*9
*1 It is possible to use the week/year schedule function without comprehensive software. However, part of functions are not available. As for
details, refer to “Step 4 : Conduct of Week/Year Schedule” section.
*2 The week/year schedule license is required.
*3 The accounting license is required.
*4 The accounting license is required.
*5 The accounting license is required.
*6 The control on only general purpose devices is not applied at present. It is necessary to connect G-50A without fail.
*7 Other sequencer (PLC) than the pulse count software is required.
*8 The energy saving control license is required.
*9 The peak cut control license is required.
*10 The Web monitoring license is required.
*11 The individual browser and Web monitoring license is required.
*12 RS-485WHM, and converters such as RS-232, RS-485 or the like are required.
*13 Only either PLC type or RS-485WHM type can be used.
Table 2-6 Function and license list
Necessary license
Energy
saving
Energy Individual General Maintenance Maintenance
saving
purpose
browser
function function simplified
(peak cut)
control PLC
version
Maintenance tool
TG-2000A
G-50A
Function to be used
Web browser
(Web for administrators)
Individual browser
(Web for general users)
Error mail notification
Year/week schedule
Monitoring/operation of air
conditioners
Year/week schedule
Electricity division
accounting
Air conditioner operation
time accumulation
Energy saving control
Peak cut
Monitoring/operation of
general purpose devices
(Ver. 1 series)
Monitoring/operation of
general purpose devices
(Ver. 2 series)
Maintenance tool
(Ver. 4.02 -)
Maintenance tool
simplified version
(Ver. 4.02D -)
Web
Division Year/week Error mail
monitoring accounting schedule notification
13
2.4 Specification
2.4.1 Centralized controller: G-50A
300
70
120
25
Item
Product dimension
Mass
Power source
22
46
220
57
Power consumption
Operating
environment
Material
External color
34
LAN
RS-232C
Mounting
method
13
83.5
28 21
280
91
47
Detailed switch section
Detail
120 (H) × 300 (W) × 79 (22)(D) mm
1.0kg
DC30V Supplied from M-NET transmission line.
(Received from the power supply unit for transmission line
or outdoor unit (TB3) through M-NET transmission line.)
0.2A
Temperature: 0 ~ 40°C
Humidity: 30 ~ 90%RH (No condensation allowed)
ABS
Cover section: White gray
(MUNSELL 4.48Y7.92/0.66)
Liquid crystal surrounding section: Medium gray (DIC551)
Mount to a switch box for 5 pcs. (with cover, field supply).
Transmission line should be of non-polarity two-wire and
connected to transmission line for M-NET centralized
control.
2.4.2 Power supply unit: PAC50KUA
265 (10 7/16)
150 (5 15/16)
Item
Source power
requirement
225 (8 7/8)
240 (9 1/2)
59.2 (2 3/8)
UP
TB3
EU:~220V-240V; 0.25A 50Hz
US:~208V-230V; 0.25A 60Hz
2.3 kg / 5 1/8 lb
Cable fixture
TB1
TB2
Cable fixture
unit: mm (in)
14
Output
voltage/current
Load capacity
Environmental
condition
Dimensions
Weight
Installation
environment
Detail
Rated input
EU: ~ 220V - 240V; 0.25A/50Hz Single-phase
voltage and current US: ~ 208V - 230V; 0.25A/60Hz Single-phase
Fuse: 2.0A Time-delay type (IEC127-2 S.S.5)
M-NET
: DC24V 0.45A (Maximum loading)
DC power supply: DC12V 0.2A (Maximum loading)
Number of the loading unit: G-50A Central Controller 1 unit
Temperature Operating range 0 to 40˚C/32 to 104˚F
Storage range
–20 to 60˚C/–4 to 140˚F
Humidity
30 ~ 90%RH (No condensation)
240(H) × 265(W) × 59.2(D) mm/9 1/2(H) × 10 7/16(W) ×2 3/8(D) in
2.3kg/5 1/8 lb
In the control panel box (indoor)
*This unit is installed and used in a business office or
equivalent environment.
3. System Design Flow
The design flow to construct the G-50A system is given below.
Step-1: Selection of air conditioning equipment (Objective equipment for control, limitations and the like)
Step-2: Selection of system control parts (Quantity of G-50A and other system controllers)
Step-3: Construction of G-50A system (Limitation on LAN wiring and the like)
System 2: Without centralized control by PC employed
System 1: With centralized control by PC employed
(Connection of plural G-50A unit)
Step 4: Optional function (With weekly/annual schedule employed)
System 1: Applied weekly/annual schedule
by integrated software
System 2: Applied weekly/annual schedule
by Web monitoring
System 3: Annual schedule not
applied
Step 5: Optional function (With electric power apportioned charging)
System 1: Electric power
pulse counting
System 2: Electric power
manual inputting
System 3: Measuring instrument
(Direct reading
method)
System 4: Electric power count by PC
direct connect (Watt Hour
Meter (RS-485))
Step 6: Optional functions (energy saving function, demand control function)
System 1: Energy saving control
System 2: Peak cut control
System 3: Not applied
Step 7: Selection of measuring instruments
Step 8: General purpose equipment control
Step 9: Determining number of PLC units
Step 10: Determination of address for air conditioning equipment and PC for control
Step 11: Confirmation of other functions
15
4. Step 1: Selection of Air Conditioning Equipment
In order to construct the system, air conditioning equipment should be selected firstly.
This chapter introduces the air conditioners that can be controlled with G-50A and various limitations
applicable. For the detail of air conditioning equipment, please refer to the manual of the relating air
conditioner.
4.1 Limitations
4.1.1 Limitations on system composition
Table 4-1 Limitations on system composition
Item
Controllable indoor unit quantity with 1
set of G-50A
Connecting quantity of G-50A
Limitation
50 sets
Controlling quantity of integrated
software
40 sets of
G-50A
Detail
1 set of G-50A can control indoor unit up to 50 sets. Lossnay if
connected should be included in this figure.
As G-50A will be the upper system controller inside a centralized system, the
quantity of G-50A connectable with the centralized system counts for 1 set only.
The quantity of G-50A that can be controlled with the integrated software is 40
sets. This can be converted into air conditioner indoor unit of 2000 sets maximum.
1 set
4.1.2 Limitation on group setting
Table 4-2 Limitation on group setting
Item
Connectable remote controller within 1
group
Connectable indoor unit within 1 group
Limitation
Up to 2 sets
Registration of system controller and
local remote controller within 1 group
Groups on 1 floor
Up to 4 sets
Up to 16 sets
Up to 50 groups
Detail
Except for the remote controllers of M-NET system, group setting is not necessary for
this unit. (ME and MA remote controllers can not be used together within a same group.)
The indoor unit, K-control indoor unit, A-control indoor unit and Lossnay
can not be grouped.
The setting that runs over G-50A can not be applied.
Not including the quantity of G-50A
On the screen of whole building display, 50 groups maximum can be
configured and displayed per floor. (At displaying of floor screen, it may
not be displayed due to the floor diagram.)
4.2 Control objective devices
Table 4-3 Control objective devices
Function
Type
City Multi
(free plan
non heat
reservation
type)
City Multi Y
City Multi SET Y
City Multi R2
City Multi WR2
City Multi WY
City Multi S
A control slim type
Room air conditioner
Free plan LOSSNAY
LOSSNAY
LOSSNAY with heating and moistening
Others
K control type
Monitoring/operation
Electricity division accounting
(without electric meter)
Electricity division accounting
(with electric meter)
Energy saving/
peak cut
*2
*2
*2
*6
*1
*5
*4
*6
*1
*5
*4
*8
*5
*4
*9
*5
*4
*10
*5
*4
*7
*1
*1 An adaptor is required separately.
A control slim type: M-NET connection adaptor, K control type: K transfer converter, Room air conditioner: M-NET control interface.
*2 The indoor units before free plan are not for electricity division accounting.
(They are according to electricity amount pulse count method (direct reading method).)
*3 Electric power division accounting is calculated in the same method as the indoor units of City Multi Y.
Without consideration of night electric charge, but with the use operation parameters of indoor units as reference, electric power
division accounting is calculated.
*4 This can be applied in the case of use by IC properties.
*5 Application by FAN operation is possible.
*6 Performance save control to outdoor units are not available.
*7 Thermo OFF control to indoor units is not available, therefore ventilation operation control is carried out.
*8 Only whether the set temperature control or the stop control can be made to RAC.
*9 Only the stop control is valid.
*10 In the case of use by IC properties, energy saving control similar to free plan indoor units can be carried out.
With FU properties, same control as free plan LOSSNAY is available.
16
4.3 Limitation on transmission line wiring
The material and wiring limitation of transmission line and signal line are given in Table 4-4.
For the detail of the limitation on each wiring length, please refer to Items 4.3.1.
Table 4-4 Materials used for transmission/signal lines and limitation of wiring length
Transmission route
Centralized control system M-NET bus
Indoor-outdoor transmission
system M-NET bus
Between timer kit and each
ice heat storage outdoor unit
Indoor-outdoor connecting
line of A-control Slim air
conditioner
K-control transmission line
Wire type
CVVS1.25mm2-2C or CPEVSf1.2-1P
CVVS1.25mm2-2C or CPEVSf1.2-1P
In case when the wiring length of cable connecting to local
remote controller is less than 10m, use 2-core cable of 0.3 ~
1.25mm2 (recommend to use 0.75mm2 or less for wiring
convenience). When it exceeds 10m, use CVVS1.25mm2-2C
or CPEVSf1.2-1P for the exceeded portion.
3-core cable of 0.75mm2 or more
Limitation on wire length
Total wiring length: 500m or less
Centralized control system M-NET bus
(Power supply distance): 200m or less
Indoor-outdoor transmission line
M-NET bus (Power supply distance):
200m or less
Remote controller wiring: 10m or less
Wiring length: 200m or less
VVFf1.6 -3C
For the cable connecting with local remote controller, use the
optional remote controller cable (wire length of 10m ~ 20m)
or 2-core cable of 0.3 ~ 1.25mm2.
2-core cable of f1.6 or more
Wire type: Use any of VCTF, VCTFK, CVV, CVS, VVR, VVF
or VCT. When the cable connecting to local remote
controller is less than 12m, use 2-core cable of 0.5 ~
0.75mm2, while when it exceeds 12m, use the above cable
for the exceeded portion.
Total wiring length: 50m or less
Remote controller wiring length: 10m
or less
(Extendable up to 200m)
Total wiring length in case of
K-control model 20 sets and local
remote controller of 10 sets or less:
500m or less
K-control model 50 sets and local
remote controller of 25 sets or less:
200m or less
Other than above: Requires relay board.
Remote controller wiring: 12m or less
4.3.1 M-NET transmission line
Figure 4-1 shows the wiring example of M-NET bus.
When the centralized control system M-NET bus and indoor-outdoor transmission M-NET bus per one
system are shown in relation with the wiring length limitation, the total wiring length in the following
example can be expressed by the following equation.
This represents the distance limitation to perform proper communication with other equipment on M-NET
bus. If this distance is exceeded, M-NET signal can not reach the end equipment thus making the
communication and control impossible.
a+b+d+e(f)500m
a+b+c+g500m
e(f)+d+c+g500m
The local remote controller wiring length counts for 10m or less. When it exceeds 10m, add the exceeded
length to the value of “total wiring length 500m or less.”
Centralized control system M-NET bus
b
Centralized
Outdoor unit
controller (G-50A)
Power supply unit
(PAC-SC50KUA)
Indoor-outdoor transmission system M-NET bus
d
e
Indoor unit
a
Indoor unit
Indoor unit
c
f
10m
Local
remote
controller
g
Outdoor unit
Indoor unit
Indoor unit
Figure 4-1 M-NET bus wiring diagram
17
(1) Centralized control system M-NET bus
The power supply distance of the centralized control system M-NET bus can be expressed by the
equation below.
This represents the distance limitation to allow powering of the centralized control system M-NET bus.
Exceeding this distance makes the power supply to the end equipment impossible disabling communication
and control.
a+b200m
a+b+c200m or less
(2) Indoor-outdoor transmission system M-NET bus
The power supply distance of the indoor-outdoor transmission system M-NET bus can be expressed by
the equation below.
This represents the distance limitation to allow powering of the Indoor-outdoor transmission system MNET bus. Exceeding this distance makes the power supply to the end equipment impossible disabling
communication and control.
d+e(f)200m
g200m or less
When the wiring length of local remote controller exceeds 10m, add the exceeded portion to the value
of “total wiring length of 500m or less” and “power supply distance of 200m or less.”
4.3.2 A-control transmission line
Arrange the total wiring length per 1 set of air conditioner as follows in the case of the example 4-2.
Total wiring length (k):
50m or less
Local remote controller wiring: 10m or 20m or less for the optional remote controller cable
When using 2-core cable of 0.3 ~ 1.25mm2, it can be extended up to 200m.
A-control Mr.Slim air conditioner indoor-outdoor connecting line
k
Centralized control
system M-NET bus
Outdoor unit
Indoor unit
Indoor unit
M-NET adaptor
10m (Up to 200m)
Local
remote
controller
Figure 4-2 A-control model wiring example
4.3.3 K-control transmission line
(1) In case of K-control Mr.Slim air conditioning system
Total wiring length (m):
Local remote controller wiring:
Centralized control
system M-NET bus
Indoor unit 20 sets, local remote controller 10 sets or more ----- 500m or less
Indoor unit 50 sets, local remote controller 20 sets or less ----- 200m or less
12m or less for the remote controller cable attached
When it exceeds 12m, change the exceeded portion with wiring of
φ1.6 or more and add it to value of the total wiring length (m).
K-transmission
converter
K-control Mr Slim air conditioner indoor-outdoor connecting line
m
Local
remote
controller
K-control Mr Slim
air conditioner
indoor unit
Local
remote
controller
K-control Mr Slim
air conditioner
indoor unit
Local
remote
controller
K-control Mr Slim
air conditioner
indoor unit
Figure 4-3 K-control Mr.Slim air conditioner wiring example
18
[Example to use relay board]
Centralized control
system M-NET bus
m
K-transmission
converter
Relay board
Relay board
m
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
m
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Figure 4-4 Relay board wiring example
(2) In case of K-control Y-series system
Total wiring length (p): 500m or less, when exceeded this length, be sure to use the relay board.
Centralized control
system M-NET bus
p
K-transmission
converter
K-control
Y-series
outdoor unit
Local
remote
controller
K-control
Y-series
indoor unit
K-control
Y-series
outdoor unit
Local
remote
controller
K-control
Y-series
indoor unit
Local
remote
controller
K-control
Y-series
indoor unit
Figure 4-5 K-control Y-series wiring example
(3) In case of system where K-control Mr.Slim air conditioner and Y-series are mixed
Be sure to use the relay board as shown in the figure below, and connect the indoor unit of K-control
Mr.Slim air conditioner to the secondary side of the relay board.
Centralized control
system M-NET bus
p
K-transmission
converter
Relay board
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
K-control
Y-series
outdoor unit
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
K-control
Y-series
indoor unit
Figure 4-6 K-control mixing system example
CAUTION
[Caution for wiring connection work]
● The wiring connection work of the equipment delivered (MELANS equipment, air
conditioning equipment, etc.) including power and earth lines.
● Install the transmission line and signal line apart from the power line and earth
line. If not, the noise from the power/earth lines will mix into the transmission line
or signal line causing to generate erroneous operation.
● In case of shielded line, provide one-point grounding at each transmission line.
(Relay shielded line at the terminal block of each equipment.)
19
5. Step 2: Selecting System Management Parts
5.1 M-NET system structure
There are cases in which other System Controllers (SC) besides model G-50A can be run on the G-50A
system structure.
In order to do so, the following outlines a number of rules to be observed for system management.
5.1.1 Concept of the system controller
The G-50A is always the host system of a self-controlling system structure.
In addition, for a SC enabling the setting to permit prohibition of the local remote controller operation,
please set up the system in such a way the setting is done with 1 SC unit for the remote controller in
question.
(1) Significant system controller and insignificant system controller
When an air condition system is supposed, the system controller (SC) to control the entire operation
system connection information is positioned as the significant SC. While, the insignificant SC means the
SC to control sir conditioners by receiving the operation system connection information from the
significant SC.
Therefore, the initial settings including group setting and so forth may be made basically only on the
significant SC, and there is no need to carry out the group setting on the insignificant SC.
Priority of the significant SC is determined according to the functions of the SC (the number of units to
control, the number of groups to control, etc.).
G-50A is the most multifunctional type in the system, accordingly it always becomes the significant SC.
(Significant SC priority)
G-50A > PAC-SF44SRA > PAC-YT34STA > PAC-YT40ANRA > PAC-SC30GRA > PAC-YV02LMAP
(2) SC enabling the prohibition remote controller setting
A SC able to set the prohibition of operation using a remote control, is called a “SC enabling setting of
the remote controller operation prohibition.”
Please make sure, the number of SC units enabling the setting of the remote controller operation
prohibition, is one always one unit for every remote controller.
Normally, in the G-50A system, the G-50A is the SC enabling the setting of the remote controller
operation prohibition. However, in the case you want to disable operation of the remote controller using
another SC (lower SC), please select “Disable the setting from this unit to prohibit remote control”
during initial set-up.
For details, please refer to the operation manuals of each SC.
Disable the
prohibit remote
controller setting
Upper SC
G-50A
SC enabling the
prohibit remote
controller setting
Slave SC
System
remote controller
Power supply unit
(PAC-SC50KUA)
Figure 5-1 System controller concept
20
5.1.2 Regarding power supply within the system
(1) Regarding power supply parts
Within the G-50A system, the parts serving to supply electricity are fixed for each transmission line.
Please take care there is no electricity supply overload to any one transmission line.
Centralized control transmission line
: supplied by transmission line supply unit
Indoor/outdoor transmission line
: supplied by outdoor unit
K-control centralized transmission line
: supplied by K-transmission converter (KA)
Extended transmission line
: supplied by relay port
M-NET model
Centralized transmission line
G-50A
K-control centralized transmission line
Indoor/outdoor transmission line
Extended transmission line
A-control type
Power supply unit
K-transmission
converter
K-control model
Relay port
Figure 5-2 Transmission line supply classification
Only for the Lossnay system, please use the power supply unit (PAC-SC50KUA, PAC-SF46EPA).
PAC-SF46EPA
Power supply unit
G-50A
OA Processing unit
(SW3-1 to ON)
Lossnay
Lossnay
Power supply unit
Lossnay remote control
Group 1
Group 3
Group 4
Figure 5-3 Electricity supply using a Lossnay system
(2) Definition of the supply connector in the outdoor unit
In the outdoor unit, the power supply to the centralized control transmission line is fixed at the location
where the supply connector is packaged.
When using the G-50A, it is recommended to connect the G-50A to the centralized control transmission
line. Therefore, package the supply switching connector at the CN-41 side and please don’t supply
power to the centralized control transmission line.
When inserting the CN-40
Electric power supply
TB7
TB3
Regular electric
power supply
Centralized control
transmission line
When inserting the CN-41
No electricity supply
TB3
Regular electric
power supply
Centralized control
transmission line
Indoor/outdoor
transmission line
*K-control outdoor unit
TB7
Factory shipping condition
Indoor/outdoor
transmission line
*M-NET outdoor unit
Factory shipping condition
21
5.1.3 Selecting the power supply unit
G-50A is driven by DC12V from the Power supply unit : PAC-SC50KUA. To communicate with the air
conditioner, it is necessary to connect to the M-NET transmission line in addition.
First determine whether G-50A is connected to the centralized control transmission line or to the
indoor/outdoor transmission line.
Centralized control
transmission line
Indoor/outdoor transmission line
G-50A
Outdoor unit
ME remote controller
TB3
(DC12V)
TB2
(M-NET)
To connect with the indoor/outdoor transmission line,
connect the DC12V output (TB3) of PAC-SC50KUA to
G-50A only. For the M-NET terminal (TB2) of G-50A,
connect the indoor/outdoor transmission line.
Never connect M-NET line to the M-NET terminal (TB2) of
PAC-SC50KUA.
Allow the wiring length of DC12V up to 10m maximum.
Please observe the following restrictions also.
- Connect the power supply connector to CN40 on the one
- outdoor unit only.
- To use the power consumption apportioning function,
- do not install on the indoor/outdoor transmission line.
G-50A
Power supply unit
PAC-SC50KUA
TB3 TB2
(DC12V) (M-NET)
To connect with the centralized
control transmission line,
leave the power supply
connector of the outdoor unit
being connected to CN41.
Power supply unit
PAC-SC50KUA
Figure 5-4 Caution for power supply
CAUTION
● As G-50A works to back up each data, recommend to install it on the centralized
control transmission line.
● If G-50A is installed on the indoor/outdoor transmission line, communication can
not be performed even with air conditioners in other systems at power failure if
occurred on the connected outdoor unit. To use the power consumption
apportioning function, therefore, be sure to install it on the centralized control
transmission line.
(1) Connecting to the centralized control transmission line
The Power supply unit : PAC-SC50KUA is required.
Centralized control
transmission line
Upper class SC
Indoor/outdoor transmission line
No. 000 unit
TB3
(DC12V)
TB2
(M-NET)
Power supply unit
PAC-SC50KUA
Indoor/outdoor transmission line
Lower class SC
Transmission line
booster unit
(PAC-SF46EP)
No.201 unit
Lossnay
Lossnay
Lossnay
Connectable wit Lossnay remote controller
but with restriction on the connecting numbers
Figure 5-5 Connection of centralized control transmission line
22
Table 5-3 Connection number of Power supply unit PAC-SC50KUA
Power supply unit
PAC-SC50KUA
Connectable
G-50A/system
1 set
Remarks
Together with G-50A, other system controllers can be connected to the
centralized control transmission line. The G-50A of one set and other system
controllers up to 4 sets can be connected to the centralized control
transmission line.
When connecting the Lossnay remote controller to the centralized control
transmission line, that up to 16 sets can be connected when one set of G-50A
is connected without other SCs.
The table below converts the receiving capacity of each system controller into
that of Lossnay for your reference.
Receiving capacity of system controllers
Type of system controller
System remote controller : PAC-SF44SRA
Schedule timer : PAC-YT34STA
Group remote controller : PAC-SC30GRA
ON/OFF remote controller : PAC-YT40ANRA
Converted in Lossnay numbers
2 sets
2 sets
2 sets
4 sets
(2) Connecting to the indoor/outdoor transmission line
To connect G-50A to the indoor/outdoor transmission line, use the DC12V output terminal (TB3) of PACSC50KUA only to supply DC12V from this terminal to G-50A.
For the M-NET terminal of G-50A, connect the indoor/outdoor transmission M-NET line.
*The M-NET terminal (TB2) of PAC-SC50KUA is not used. Never connect the M-NET line.
When connecting G-50A to the indoor/outdoor transmission line, the quantity of indoor units
connectable to the refrigerant system decreases. The quantity of indoor units connectable is decreased
by 2 sets per 1 set of the system controller (including G-50A) connected to the indoor/outdoor
transmission line.
[Example : In case of BIG Y Series (PUHY-P400YMF)]
The quantity of indoor units connectable to an outdoor unit counts for 16 sets. When connecting the
system controller (like G-50A) to the indoor/outdoor transmission line, the connectable quantity will be
14 sets. (16 sets –2 sets = 14 sets)
PUHY-P400YMF
M-NET model
001
002
010
011
012
013
014
015
016
Connectable sets reduced
G-50A
TB3 TB2
(DC12V)(M-NET)
For the connection with the indoor/outdoor transmission line, connect
the DC12V output (TB3) of PAC-SC50KUA only to G-50A.
For the M-NET terminal of G50A, connect the indoor/outdoor transmission line.
Never connect the M-NET line to the M-NET terminal (TB2) of PAC-SC50KUA.
Allow the wiring length of DC12V up to 10m maximum.
Power supply unit
PAC-SC50KUA
Figure 5-6 Connection of the indoor/outdoor transmission line
23
5.1.4 When managing a K-control model
When managing a K-control type device, a separate K- transmission converter, model PAC-SC25KAA, is required.
(1) System controllers able to control a K-control type device
A K- transmission converter unit only accepts communication with a upper controller with bearing
address [000].
Consequently, since the G-50A is fixed (address [000]) as the upper controller, even if multiple system
controllers are included in a single system, control of K-control type devices is only conducted using the G-50A.
Transmission
enabled
G-50A
System
remote control
K-control model
K- transmission
converter
220
Transmission
disabled
M-NET transmission line
K-control transmission line
Figure 5-7 Management of K-control models
(2) Concerning the address of the K- transmission converter (PAC-SC25KAA)
The address of the K- transmission converter is [200 + the smallest address of the K- models].
The address of the K- transmission converter expresses the borderline of the M-NET type device and
the K-control models.
As a case example, in the case the number of G-50A units is 38 units and the address of the K
transmission converter is [220], the addresses from [20] on and after are all interpreted as K-control
type devices and are started up according to K-control.
In other words, care has to be taken the addresses of K-control models are set after those of the addresses
of the M-NET type devices, while fitting addresses should be set for the K -transmission converter.
M-NET type device
G-50A
001
002
011
012
Power supply unit
K- transmission converter: 220
K-control models
+200
020
021
Figure 5-8 K-control converter address
5.1.5 Synchronized settings
The Lossnay with built-in heater and humidifier and which has been set for synchronization starts and stops
operation synchronized with an indoor unit that has been set for synchronization. Furthermore, it is also
possible to operate the Lossnay or the OA Processing unit independently using the ME remote controller that
controls the indoor unit in question. Synchronized operation of two or more OA Processing unit in addition to a
Lossnay unit using one indoor unit is impossible.
CAUTION
24
● OA Processing unit can be controlled as an indoor unit by setting the DIP
switches. In the case of OA Processing unit is to be controlled as an indoor unit,
please set DIP switch 3-1 of the OA Processing unit to ON.
● Synchronized operation of two or more Lossnay units with built-in heater and
humidifier in addition to a Lossnay unit using one indoor unit is impossible. With
one OA Processing unit, synchronized registration of maximally 16 indoor units
can be performed.
5.2 External input/output
The main unit of the G-50A is equipped with an external input/output function. This function enables
external input control and output monitoring for each G-50A unit.
This function uses the main unit of the G-50A’s CN2. For use, please purchase the optional external
input/output adapter (PAC-YG10HAA).
Optional: PAC-YG10HAA
5.2.1 External output signal function
(1) External input
Using the external signal indicating contact point voltage (DC 12V or DC 24V) all air conditioning units
managed, can be controlled for emergency stop/regular start/stop and for prohibition/permission for
local remote controller operation.
Switching of each input mode can be set from the main unit of the G-50A or by using the default setting
tool. (Default value: not used)
Table 5-2 External input function table
No.
Function of the external input signal
Function selection switch
No. 7
No. 6
OFF
OFF
ON
OFF
1
2
Do not use the external input signal
Emergency stop/regular (level signal)
3
Start/stop (level signal)
ON
OFF
4
Start/stop and prohibition/permission (pulse signal)
ON
ON
Remarks
None (factory shipping condition)
An emergency stop signal will stop the operation of all air
conditioning units while disabling the prohibition/permission
operation from the local remote controller, the start/stop operation
on the main unit, and the prohibition/permission change operation.
Disables the prohibition/permission operation from the
local remote controller, the start/stop operation on the main
unit, and the prohibition/permission change operation.
Please set the pulse length during contact point ON to 0.5 - 1 second.
(2) Level signal and pulse signal
(A)Level signal
(B)Pulse signal
Example: During start/stop (similar during prohibition/permission)
Contact point ON
0.5 - 1 second
Contact point OFF
Stop
Operation
Stop
Contact point ON
Signal 1 (operation)
Contact point OFF
Contact point ON
0.5 - 1 second
Contact point OFF
Contact point ON
Regular
Emergency stop
Regular
Signal 2 (stop)
Contact point OFF
Stop
Operation
Stop
(3) External input interface specifications
The external input interface specifications are outlined in Table 5-3.
In the table below, the color of each lead line signifies the color of the optional external input/output cables.
Table 5-3 External input interface specifications
CN2 Lead wire
No. 5 Orange
Yellow
No. 6
Blue
No. 7
Gray
No. 8
Red
No. 9
Start/stop (level signal)
Emergency stop/regular level signal
Start/stop prohibition/permission pulse signal
Start/stop input
Emergency stop/regular input
Operation input
Unused
Unused
Stop input
Unused
Unused
Local remote controller operation prohibition input
Unused
Unused
Local remote controller operation permission input
Common (external DC power supply +12V or +24V)
25
(4) Recommended circuit example
(A)Level signal
(B)Pulse signal
1
1
5
Orange
Start/stop and
emergency stop
X1
5
X1
6
6
7
7
8
9
CN2
G-50A
Red
8
DC power supply
9
Maximally
10m
CN2
G-50A
Local arrangement board
Orange
X1
Yellow
X2
Blue
X3
Gray
X4
Operation
X1
X2
X3
X4
Stop
Prohibition
Permission
Red
DC power supply
Maximally
10m
Local arrangement board
* Special local arrangements are required for the relay, DC power supply (DC 12V, or DC 24V), and extension cables, etc.
* Please limit extension of the connection cable to 10 meters. (Please use cables of 0.3mm2 or more)
* Please cut off any unused cable close to the connectors and be sure to insulate the cut parts using tape, etc.
Notice
● When using this device to start/stop or emergency stop the external input level, an
operation prohibition setting for the local remote controller is transmitted regardless of
whether function selection No. 4 is set for enabled or disabled of the prohibition setting.
Consequently, when using this device for start/stop or emergency stop of the external
input level, please do not perform any operation prohibition settings involving other
system controllers.
5.2.2 External output signal function
(1) External output
When at least one air conditioning unit is operating, a [Abnormality occurrence] signal is output when
abnormalities occur in at least one air conditioning unit.
(2) External input interface specifications
The external input interface specifications are outlined in Table 5-4.
Even during an [Abnormality occurrence], the [Operating] signal is output.
Table 5-4 External input interface specifications
Details of each terminal
External output common ground (external DC power supply ground)
Start/stop
Irregular/regular
CN2 Lead wire
Green
No. 1
Black
No. 2
Brown
No. 3
(3) Recommended circuit example
Green
1
DC power supply
D1
Black
2
3
X1
X1
Brown
X2
X2
L1
L2
4
D2
CN2
G-50A
Maximally
10m
Local arrangement board
* For the relays (X1, X2), please use those with the following specifications.
* Operating coil: DC 12V, DC 24V, power consumption: 0.9W or less
* Please make special arrangement to adjust the DC power supply to DC 12V or DC 24V depending on the relay used.
* Please be sure to use diodes at both ends of the relay coil.
* Please limit extension of the connection cable to 10 meters. (Please use cables of 0.3mm2 or more)
* Please cut off any unused cable close to the connectors and be sure to insulate the cut parts using tape, etc.
26
6. Step 3: Construction of the G-50A system
Below follows an explanation for the construction of a G-50A system.
In order to use a PC, etc. to monitor the connections of multiple units to the G-50A and the operating status
of air-conditioning units, please connect G-50A units or one or more PC’s using a LAN.
G-50A
G-50A
Lossnay
LAN
ME remote controller
Power supply unit
Lossnay
HUB
ME remote controller
PC for centralized control
27
6.1 Centralized monitoring using a PC
To monitor the G-50A system by connecting it to a PC, the two following methods are available.
● Perform monitoring using the browser software of the PC. (Web monitoring)
Monitoring and operation can be performed without using any special software.
● Monitoring can be performed by installing exclusive integrated software in the PC. (Integrated
software monitoring)
The use of this exclusive software allows more detailed monitoring.
Please refer to Table 6-1 for the difference between these two monitoring methods.
Table 6-1 Differences between Integrated Software Monitoring and Web Monitoring
Outline
Monitoring/operation
Weekly/annual
schedule
Air conditioning
electric power
charge function
Operation time total
Energy saving
control function
All indoor units
operation status
indication
Operations and monitoring available with the integrated
(optional) software
Operation and monitoring of a maximum of 40 G-50A units
(2000 indoor units) is possible through simultaneous
screen display.
License registration is required.
Separate license registration is required
(schedule copy function is available)
Separate license registration is required.
Operations and monitoring available with the web browser
(Internet Explorer) software
Using one single G-50A unit, the operation and monitoring of a
maximum of 50 indoor units is possible. Using a single LAN structure
including a PC for monitoring, a maximum of 255 G-50A units can be
connected, but the screen displays only one G-50A at one time.
License registration is required.
Separate license registration is required (no schedule
copy function is available)
Separate license registration is required.
Separate license registration is required.
The status van a maximum of 2000 units can be displayed
As monitoring is performed per single G-50A unit, the
status of a maximum of 50 units can be displayed.
Block indication
Floor plan
No floor plan display function is available.
28
Operations and monitoring available with the integrated
(optional) software
Operations and monitoring available with the web browser
(Internet Explorer) software
Data is updated automatically
Operation status is updated every minute, while the status
of any abnormalities is updated every 3 minutes.
Data is updated manually
Status update is invoked by changing screens (automatic
update is scheduled from April)
Remote
controller
operation screen
Data update
Request
Notice
● In the case of centralized control, the user is asked to make periodic revisions (approx.
once a week) in the TG-2000A program and restart the Windows XP/2000 OS each time.
(Please perform restarting between 8:00 and 21:45)
● In order to keep the TG-2000A program in operation 24 hours a day, please keep the
power connected to the PC at all times.
(In order not to interrupt the program, please do not use the [System Standby] or
[System Pause Status] functions of the power supply options.
● Since latent problems may occur if the Windows XP/2000 OS is operated for extended
periods of time, it is recommended to periodically shut down the TG-2000A and the OS
and restart the system.
● Within the [User Setup] of the TG-2000A, the [Auto Reboot Setting] is available.
This function is a backup function to prevent the user from forgetting to perform the
previously stated tasks.
In case any problems occur during auto reboot, recovery has to be performed manually.
Since any problems could still remain, it is recommended to manually perform this work
on a periodic base.
29
6.1.1 About floors, blocks, and groups
The G-50A system can target groups, operation blocks, floors, and the whole building.
In addition, for operation and monitoring, the name of the G-50A and the name of the building can be
registered.
Table 6-2 shows the setting registration and operation monitoring of each part while Table 6-3 shows the
characters that can be used for setting each registration screen.
● What is a group?
This forms the standard of all operations and monitoring. In order to make sets including blocks and
floors, appropriate settings are required.
● What is an operation block?
This term refers to a work unit consisting of a group of units.
In addition, in order to operate and monitor an operation block it is necessary to set it as a unit, while
it is also necessary to perform the required settings in order to perform air conditioning charges.
● What is a charge block?
This term refers to an apportionate electric power unit, when using the apportionate electric power
charge function.
For this block to be operated it must be organized as an operation block.
● What is a floor?
This refers to one floor plan unit in the integrated TG-2000A software.
This unit is also required to be set as an operation group.
It is possible to set up to 55 floors. This does not refer to the number of floors but to the number of
floor screens.
● What is the whole building?
This refers to all air-conditioning units controlled by the integrated TG-2000A software. This enables
operation only.
Group
Operation Block
Charge Block
Figure 6-1 Floors, blocks, and groups
Table 6-2 Setting table
Operation, monitoring
Setting, registration
Item
30
Group
Operation
block
Charge block
Floor
General purpose equipment
Malfunction e-mail
e-mail function
Group
Operation block
Charge block
Floor
Whole building
G-50A unit
General purpose
equipment
G-50A Main
Unit
Default Setting
Tool
Centralized
Control PC
(Web)
Centralized
Control PC
(integrated software)
Remarks
The operation block setting information set by
the default setting tool is saved to the G-50A
main unit, while the operation block saved by
the integrated software is saved to the PC.
Group of Operation block
Communication function for G-50A
(Installed in LAN) by using e-mail.
Exclusively for operation.
Blocks for operation or monitoring are
not available.
Exclusively for operation.
Exclusively for operation.
Exclusively for operation.
Operation, monitoring can be done only
from TG-2000A.
Table 6-3 Name registration table
Item
Default Setting Tool1
G-50A Main Unit
Centralized
Control PC (Web)
Centralized Control PC
(integrated software)
Group name
2
Up to 10 characters
Up to 20 characters
Long name: Up to 20 characters
Short name3: Up to 8 characters
(Name setting is possible using the
G-50A main unit)
Up to 20 characters
Up to 20 characters
Operation block name
Charge block name
Up to 20 characters
Floor name
Up to 16 characters
G-50A name
Up to 40 characters
Watt Hour Meter
name
Watt Hour Meter
setting location
Building name
Up to 20 characters
Up to 20 characters
Up to 20 characters
General purpose
equipment name
Notice
Same as Group name
● When controlling using the TG-2000A software, please set all group icons as operation
blocks.
● When using the apportioned electric power charge function, please set all groups as
operation blocks.
1
The symbols <, >, &, “ , and ‘ cannot be used for the names. Also, please do not use, for the names.
For characters, kana, the letters of the alphabet, numbers, and blanks can be used. However, voiced consonants and semi-voiced consonants
use two characters.
3 The control screen displays short names. By putting the cursor on a group icon, a long name can be displayed.
2
31
6.1.2 Centralized control PC (local arrangement)
Table 6-4 indicates the minimum specifications the PC required to conduct monitoring using the integrated
software or the Web browser, should satisfy. Please arrange locally for a PC satisfying the specifications
outlined below.
Table 6-4 PC specifications
Item
PC
CPU
OS
HDD
Memory
Display resolution
Interface
Remarks
Monitoring using the web browser
PC/AT compatible
Pentium 133MHz or faster
Windows98/Me/2000/XP
Internet Explorer 5.0 or later version (Java VM 5.0 or later version)
–
64MB or more
1024 × 768 or better
LAN port (10BASE-T)
Monitoring using the integrated software (PAC-TG2000A)
PC/AT compatible-1
No. of air-conditioning units 1000 or less: Pentium4 1.8GHz or faster
No. of air-conditioning units 1001 or more: Pentium4 1.8GHz
or faster (Case of temp. trend use : 2.8GHz or faster)
*Pentium4 2.8GHz or faster is recommended
Windows2000/XP Professional2
6GB or more3
256MB or more
1024 × 768 or better
LAN port (10BASE-T)
Modem4
Automatic update with operation status updates every
minute and abnormalities every three minutes.
When switching between screens and when updating
operations, the data update operation necessary.
Internet Explorer 5.0 or later version
*1 The Java VM (Microsoft VM) version can be confirmed using the following steps.
When the software is an earlier version than 5.0, please update to the latest version using the Windows Update feature.
[Version confirmation method]
1Please select [Designate File Name and Execute] from the [Start] menu.
2For Windows 98 and Windows Me, please input [COMMAND] and press the Enter key.
For Windows 2000 and Windows XP, please input [CMD] and press the Enter key.
3Please input [jview] at the command prompt display that appears. Next, press the Enter key.
4At the top line, a message similar to the one below appears to confirm the current version (below, lower line)
[Microsoft (R) Command-line Loader for Java Version x.yy.zzzz]
5When the version is older than 5.0, please update to a more recent version.
1
Operation has been confirmed for IBM, Hp Compaq and DELL
Please note that use is not possible for the general Home Edition.
3 A minimum of 4GB is recommended for the C-drive.
4 When performing remote monitoring/operation, a PC equipped with a modem or a data/FAX modem card is required.
2
32
6.2 About password control
When performing centralized control using a Web browser or the TG-2000A software, it is possible to
restrict operations to approved users by setting a password to perform operations or functions please refer
to section 2,3 for function licence.
6.2.1 Password control when using a Web browser
(1) For general users
A general user is a user who enters through the [index.html] web page.
This type of user can operate and monitor the operation status of air-conditioning units.
The default password for general users is [guest].
(2) For administrators
An administrator is a user who enters through the [administrator.html] web page.
This type of user can operate and monitor the operation status of air-conditioning units in addition to
setting their schedules (optional), monitoring abnormality histories, setting the current timetable and
changing passwords.
The default password for administrators is [admin].
6.2.2 Password control when using the TG-2000A software
(1) For system administrators
This is the password for system administrators.
Inputting the current password enables transferring to the default selection screen.
Furthermore, when transferring to the default selection screen by using this password, the passwords
for [System Administrator] and [Maintenance User] can be changed.
The default password for the system administrator is [SYSTEM].
(2) For maintenance users
This is the password for maintenance users.
Inputting the current password enables transferring to the default selection screen.
Furthermore, when transferring to the default selection screen by using this password, the passwords
for [Maintenance] and [Maintenance User] can be changed, in addition to the [Charge Setting] control
screen.
The default password for the maintenance user is [Maintenance].
Request
● Please take care the password does not leak to a third party who has no permission to
make changes in the system. The password can be changed with the password function.
33
6.3 About LAN
6.3.1 LAN types
For the LAN cable, a 10BASE-T type is recommended.
As for the category, from the point of view of availability and the development of mixed systems with optical
cables, the use of category 5 is recommended.
(1) Main cable type
LAN cable standard
10BASE-5
10BASE-2
10BASE-T
100BASE-Tx
Cable specifications
Standard coaxial cable
Fine-core coaxial cable
Twisted pair cable (T)
Twisted pair cable (T)
Maximum wire length
500m
185m
100m
100m
Communication speed
10Mbps
10Mbps
10Mbps
100Mbps
(2) EIA/TIA568 (category)
For the twisted pair cable, there are classifications standards determined by EIA/TIA. For Ethernet, 5
and 3 are used. The categories are divided by communication speed used where a speed of 10 times
that of category 3 can be used with category 5.
Category
Category 1
Category 2
Category 3
Category 4
Category 5
Use
For telephone
For telephone, Apple Talk
10BASE-T, token ring
Token ring
10BASE-T, 100BASE-T
Communication speed
4Mbps
10Mbps
16Mbps
100Mbps
6.3.2 About the hub
For the hub, there are a variety of models including the 10BASE-T/100BASE-Tx automatic switching type
(switching hub), the exclusive 10BASE-T hub and the exclusive 100BASE-Tx hub. When using the G-50A,
please select a 10BASE-T type.
(1) What is a cascade connection?
The term cascade connection refers to a series of hierarchical connections where multiple hubs are
interconnected using cables and where ports can be added.
(2) Cascade connection step restriction
As the number of cascade steps increases, the transmission delay increases, making it impossible to
distinguish the signal (collision signal) to recognize other devices. To prevent this, restrictions for the
number of connection steps apply as follows.
LAN cable standard
10BASE-T
100BASE-Tx
34
Possible no. of connection steps
4 steps
2 steps
(3) Switching hub
The switching hub means the hub that controls traffics at exchanging packets (communication data)
among plural networks, and send packets to a specified address.
Different from ordinary hubs, it carries out one-to-one communications among respective ports,
accordingly, even when one set of ports is communicating, other ports can communicate freely. By this
function, conflict of signals can be restricted, and network performance can be improved.
Fig. 6-2 shows the differences between an ordinary hub and a switching hub.
When communication is made from the personal computer at 192.168.1.2 to the personal computer at
192.168.1.3, in the case of an ordinary hub, communication is sent also to the personal computer at
192.168.1.1. While, in a switching hub, communication is sent to only the destination that you want to
communicate.
Ordinary HUB
192.168.1.1
192.168.1.2
Transmitting communication
to all routes
192.168.1.3
Switching
192.168.1.1
192.168.1.2
Not transmitting to routes except
that desired by switching.
192.168.1.3
Figure 6-2 Switching hub concept
Notice
● By use of a switching hub, it is possible to add hubs exceeding the connection stage
restrictions specified in the section 6.3.3, and to expand the distance.
Example: In the case where 2-stage cascade connection is made by 100 Base-TX
repeater hub or the like, by use of a switching hub, the hub can be
connected to 2-stage cascade.
● When to connect 2 switching hubs, there is logically no restriction in the number of cascade
connection stages, cable length (between nodes) or so. However, if the load of network
becomes extremely high, delay may result, causing network connection problems.
● As for the details of switching hub, refer to the operation manual attached to each
switching hub.
6.3.3 LAN wire length
A 10BASE-T network connected to the G-50A may have a maximum wire length of 100m as detailed in
chapter 4.1.
Consequently, when the LAN wire length exceeds 100m, the use of hubs will extend the maximum length
to 500m.
HUB
Centralized
control PC
Notice
HUB
HUB
HUB
G-50A
100m
500m
● Be sure to always use a hub.
● Restrictions apply to the number of cascade connections when using hubs. Please
observe these restrictions.
35
7. Step 4: Implementing annual/weekly schedules
With the G-50A main unit, weekly schedules can be implemented. However, when registering for a
separate license (Annual/Weeky schedule), multifunctional weekly schedules and annual schedules can be
performed. Please refer to section 2,3 for function licence.
License registration
Setting
registration
Weekly schedule
Monthly schedule
G-50A
Web monitoring
TG-2000A
Not required
For each G-50A unit, set using the G-50A
Required
For each G-50A unit, set using the
web monitoring PC
No. of operation per day: 12 times
Operation items:
Start/stop, set temperature, operation
mode, local remote controller
prohibition/permission
Time setting unit: 1 minute
Operation subjects: groups, blocks,
all groups
Required
Set using the TG-2000A software
No. of operation per day: 6 times
(ON/OFF each 3 times)
Operation items:
Start/stop, set temperature, remote
controller prohibition
Time setting unit: 10 minutes
Operation subjects: only groups*1
* No. of operations is 3 times each for
[Start/stop] and
[prohibition/permission] (total 12
times)
* Operation settings are 3 times/day
* Operation items must be set
together with [Operation]
Not possible
* Settings are possible 12 times/day
* Operation items extend to [Set
temperature only] and [Operation
mode only]
No. of operation per day: 12 times
Operation items:
Start/stop, set temperature, operation
mode, local remote controller
prohibition/permission
Time setting unit: 1 minute
Operation subjects: groups, (all)
floors blocks, Whole building
Pattern: possible to set for 2 patterns
for Summer/Winter
* Settings are possible 12 times/day
Operation items extend to [Set
temperature only] and [Operation
mode only]
Possible to set for 24 months and 50 days ahead (including this month)
No. of pattern: 5 patterns
2002
2003
2004
12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 ··· 10 11 12 1 2 3 4 5 6
Setting range (24 months)
This month
Day schedule
Not possible
Day schedule can be changed without changing the weekly schedules or the
annual schedules.
*1 After registering Annual/Weekly schedule, G-50A’s weekly schedule will not operate.
(1) What is the weekly schedule?
This term refers to the operation schedule of each day of the week.
(2) What is the annual schedule?
Deviating from the weekly schedule, for special days (including commemoration days and holidays) a
different schedule can be set for a maximum of 50 days up to 24 months (including this month) in
advance.
During the days set, the weekly schedule settings will not be implemented while the schedule set in the
annual schedule will be implemented.
(3) What is the day schedule?
After setting the weekly and annual schedules, the day schedule can be used for sudden changes in the
regular schedule.
When the day schedule is set, the weekly and annual schedule settings will not be implemented.
However, from the following day operations will be resumed according to the settings of the weekly and
annual schedules.
36
7.1 Weekly schedule using the G-50A
The following explains the outlines the weekly schedule set using the G-50A.
If the weekly schedule is set using the G-50A, setting is required to be performed using the G-50A for
every G-50A unit.
1The timetable for start/stop can be set in increments of 10 minutes.
2For the daily operation schedule, up to 3 settings for each of the start and stop times for operation
can be set.
These settings can be set per group as P1, P2, and P3 as P4 (1 type) of the operation prohibition
schedule patterns at the local remote controller.
3In addition, it is possible to set the schedule for the same day by combining the start/stop operation
prohibition schedule patterns. ( P1 , P2 , P3 )
4As the contents of the set schedule can be saved to memory, copying schedule patterns to other
groups is easy.
5Settings can be performed to set the temperature and setback operation-1 while schedule operation
is being executed.
P4
PROH.
P3
OFF
ON
P2
ON
P1
(SCHEDULE)
MON
10:35
(SCHEDULE)
MON
10:35
(SCHEDULE)
MON
10:35
(SCHEDULE)
MON
10:35
PERM.
ON
OFF
OFF
24°C
08:00
10:00
23°C
13:00
17:00
––:––
22:00
Four preprogrammed settings
G01
MEETING1
(SCHEDULE)
G01
MON
10:35
MEETING1
patterns
SU MO TU WE TH FR SA
– 1
2
2
3
3
1
Assigned for each group by day of the week
Figure 7-1 G-50A schedule screen configuration
7.2 Annual/weekly schedule using web monitoring
Registering the weekly/annual schedule license number in the G-50A main unit using the PC’s browser,
will enable this function. In this case, the weekly schedule of the G-50A will be invalidated.
Using this function, the schedule for every G-50A unit is set with the web browser software.
[Weekly schedule]
1Settings can be performed in 1-minute increments.
2The number of setting items is 12 times per day (for every day of the week). Settings allowing
operation mode only or set temperature only are possible too.
3Set items include the operation prohibition for start/stop, operation mode, set temperature, and local
remote controller.
4Setting subjects include the setting per group, per block, and of all groups.
[Annual schedule]
150 special days can be set up to 24 months ahead, including this month.
2Setting subjects include the setting per group, per block, and of all groups.
3Up to 5 schedule patterns can be set. (Contents of the settings are similar to the weekly schedule)
In addition, during the days set by the annual schedule, the regular weekly schedule will not be
executed.
1
The setback value allows the set temperature to be altered only by the difference compared to the standard temperature, to help save energy.
Example: When the standard temperature is 24°C and the setback value is 2°C.
During operation as a cooler, the set temperature is 24°C + 2°C = 26°C.
During operation as a heater, the set temperature is 24°C - 2°C = 22°C.
37
Day of the week selection
Selects the day of the week
for the schedule to be set.
Setting unit
Selects the setting unit.
Save/do not save
Sets saving or not saving when
pushing the settings save button.
Block name
Selects the block to be set.
Schedule contents
Displays the schedule contents.
Group name
Selects the group to be set.
Selection button
Sets the schedule contents.
Delete button
Deletes the contents of the schedule.
Group number
Selects the group to be set.
Undo button
Returns any changes to
the original contents.
Settings save button
Saves the schedule contents. Settings
are not saved if this button is not pressed.
The settings of the operation contents are
performed by setting unit (group, block, all
blocks) as displayed in the screen on the left. The
setting of the operation can be set up to 12 sets
each day.
Figure 7-2 Weekly schedule set screen
Pattern selection
Selects the pattern to set the schedule.
Save/do not save
Sets saving or not saving the schedule
pattern when pushing the settings save
button.
Setting unit
Selects the setting unit.
Schedule contents
Displays the schedule contents.
Block name
Selects the block to be set.
Selection button
Sets the schedule contents.
Group name
Selects the group to be set.
Delete button
Deletes the contents of the schedule.
Group number
Selects the group to be set.
Save/do not save
Sets saving or not saving the pattern
assigned to a certain day when pushing
the settings save button.
Undo button
Returns any changes to
the original contents.
Calendar button
Assigns the pattern to a specific day
Settings save button
Saves the schedule contents. Settings
are not saved if this button is not pressed.
Figure 7-3 Annual schedule set screen
38
7-3 Weekly schedule of the integrated software
Registering the weekly/annual schedule license number in the G-50A main unit using the PC’s browser,
will enable this function. In this case, the weekly schedule of the G-50A will be invalidated while the data
previously set with the web monitor will be validated.
For the schedule set with the TG-2000A software, settings are set per target unit (group, block, floor, etc.)
in the schedule set screen of the TG-2000A.
For the setting data two
patterns, namely [Summer
Master] and [Winter Master]
are available to facilitate
switching depending on the
season.
12 operation settings are possible for every day of the
week. It is also possible to set the contents for [Operation
mode] only or [Setting temperature] only.
Figure 7-4 TG-2000A schedule set screen
The schedule functions when performed with the TG-2000A are similar to the settings performed with the
Web browser, except for the possibility to store the two patterns [Summer Master] and [Winter Master].
The [Summer Master] and [Winter Master] set with the integrated software are stored, to enable
transmission to the G-50A main unit in accordance with the user’s needs. By transmitting these data to the
G-50A, they become the [G-50A Master data] and will be executed by the schedule of the G-50A main unit.
Displays the contents
of the G-50A Master.
TG-2000A
Schedule data
[Summer Master]
Schedule data
[Winter Master]
Web control PC
By absorbing the
schedule data of the
G-50A, the data is
entered in the [G50A Master] within
the TG-2000A
software.
Schedule data
[G-50A Master]
G-50A
Schedule data
[G-50A Master]
By transmitting the [Summer Master] and [Winter Master] stored in the TG-2000A software, the G50A will execute that schedule.
* Switching between the [Summer Master] and the [Winter Master] requires the corresponding
operation of the TG-2000A software.
Figure 7-5 TG-2000A schedule chart
39
8. Step 5: Charging Function of Energy Charge Measuring
This step is to set the charging function of measuring instruments to be performed by TG-2000A.
This setting is required to use the charging function by measuring instruments. Since this function is optional,
license registration to the G-50A unit is essential to use the charging function by measuring instruments.
CAUTION
[RE: Apportioning of air conditioning power consumption]
Since the watt-hour meter value of power consumption is apportioned by judging the operation status of the indoor unit from detailed
communication between the indoor and outdoor unit, this value can not be applied to the business certificate legally defined.
The same limitation is applied to the case of direct reading of measuring instrument unit.
In order to employ this system, therefore, it is recommended to conclude an agreement or contract between the building owner and
tenants stipulating that [The air conditioning charge should be collected through apportioned calculation based on the operation status
(including the temporary processing measure at trouble)].
(1) This system does not measure the power consumption of each indoor unit directly.
(2) As the system estimates the power consumption of air conditioning, the valued obtained herewith may not be applied to the certificate
of business transaction.
(3) Even if the operation time of air conditioners is same, the power consumption differs depending on the operating status.
(4) As air conditioners are powered even when they are stopping, the power consumption will be charged.
(5) One watt-hour meter should be connected to one air conditioner. If connected to plural air conditioners, an error will be caused due to
the apportioning of total power consumption.
(6) At the failure of PC, G-50A or PLC, the average apportioned value in the past may be adapted for temporary transaction as a solution.
(7) As the power consumption and gas consumption is taken in the form of a pulse, the performance and accuracy are depending on that
of the measuring instruments employed. Under this circumstance, we are not liable for the performance and accuracy presented.
(8) As the resultant air conditioning charge is rounded to the nearest whole number at a figure not shown here, please note that an error
generates between the air conditioning charge of watt-hour meters and that of the block total.
8.1 Outline
Before explaining the charging function by measuring instruments, each term used here is introduced.
(1) What is the standard charge?
This indicates the contracted standard charge of each measuring instrument (electric power, gas, city water, calorie meter).
The standard charge is set in the unit of each tenant (charge block) for air conditioning energy charging. While for the direct
reading of other measuring instruments, it is set in the unit of measuring instrument.
In the case of electric power used for air conditioning, the standard charge represents the contracted charge of air
conditioning system among the contracted electric power charge of whole building per tenant. The monthly charge is fixed.
[Example of calculation method of standard charge]
1The contract charge of air conditioning among the contract electric charge of a whole building is calculated.
Standard charge (Yen) =
Air conditioner electric capacity of control target
Total electric system capacity of whole building
× Contract electric capacity × Capacity unit price
2This standard charge is divided in proportion with the air conditioning electric capacity per tenant (charge
block).
Standard charge of
measuring equipment
In the case of direct reading
type measuring equipment,
the standard charge is set in
a unit of the measuring
equipment.
Standard charge of charge block
In the case of the apportioned
system, the standard charge is
set in a unit of the charge block.
The standard charge can not be set in the case of the
electric power manual input system. It shall be added
separately.
Figure 8-1 TG-2000A standard charge setting screen
40
(2) What is charge?
This represents the charge of electric power, gas or water consumed by each air conditioner or tenant
(In the case of using electric power count by PC direct connect (Watt Hour Meter (RS-485)), only
electric power can be counted). The charge of such consumption can be calculated by the following 2
methods, and the output can be presented in printer output or file output in CSV format.
● Calculation for clearing day
On the clearing day registered to TG-2000A, the monthly charge is calculated automatically. The
standard charge is also added. The clearing day may be selected in two ways, from the clearing day
specified or the end of the month. In the case of the clearing day specified, the day of 29th, 30th or
31st can not be specified, but the specifying the end of the month conducts clearing at the end of the
month. The result of clearing can be selected for printer output or file output.
● Calculation for specified date
The charge may be calculated for any desired period covering 122 days from and including the
former day. (The standard charge is not included.)
Date specified
Specify when a fixed day is
desired for clearing. However,
the day of 29th, 30th or 31st
can not be specified.
Month end specified
Specify when the end of the
month is desired to select.
This setting clears based on
the operating record until the
final day monthly.
Figure 8-2 TG-2000A clearing day specifying screen
Start/finish selection
Select the period to be cleared.
Clearance can be performed
for the past 122 days.
Target for calculation
Select the target for clearance.
Figure 8-3 TG-2000A clearance period specifying screen
(3) What is the time frame for charging?
The charge of one calendar day can be set with 5 charge units to 10 time frames divided.
This setting can change the charge unit depending on the time frame in the morning, after noon,
overtime or weekend. As the charging unit can be set to each measuring instrument individually1,
sophisticated operation according to the types of measuring instruments can be performed. However,
the setting of time frame should be applied collectively for each measuring instrument.
Week day button
Clicking displays the menu
of set/cancel/copy/paste.
Charging unit setting
Allows setting the charging
unit of watt-hour meter.
Other measuring instruments
(for city water, gas, calorie)
may be set on other screen
(Measuring instrument unit
price screen).
Time frame dividing mark
Indicates the division of time frame.
Allows dividing each weekday in 10
divisions.
The unit of time is 10 minutes.
Charging time frame
Indicates the time frame for charging.
The content of this setting may
commonly be used for all measuring
instruments.
Figure 8-4 TG-2000A charging time frame setting screen
In the case of electric power count by PC direct connect (RS-485WHM), charging unit (daytime,
nighttime, weekday, weekend and seasons) can be set up.
1
Indicates air conditioning, electricity 1, electricity 2, gas, city water and calorie, five types in total.
41
(4) What is the seasonal charge?
The electrical power charge can be divided into the summer seasonal charge and normal charge.
Because of this, the following management can be adapted for example;
“As a ratio of using air conditioner rises in the summer (July ~ September) and electric power
consumption of a whole building increases accordingly, higher power rate may be applied in this period.”
The period of the seasonal charging may be applied by specifying the date of start and end respectively.
Seasonal charge setting
Selects setting or no setting.
Default value represents “No setting.”
Seasonal charging period setting
Sets the seasonal charging period.
Figure 8-5 TG-2000A seasonal charge setting screen (ex, electric power manual input, pulse count)
(5) Setting of special day (Setting of annual charge)
Besides the items (3) and (4) above, a special day of up to 50 days can be set in a range of 24 months
in future (including this month).
For the special days, 5 patterns may be set and the patterns may be assigned to 50 days maximum.
The unit price of the charging changes by a fact whether the assigned day belongs to the seasonal
charging period or normal charging period.
Pattern setting
5 patterns can be set.
The pattern name can be
changed (up to 10 characters).
Pattern set/cancel
Clicking the date sets or cancels
the pattern being selected.
Pattern set/change button
Sets or changes the charging
patterns.
Displays the number of set days
Displays the number of the day set
with annual rate.
Can be set 50 days maximum for
24 months in future including the
present month.
Figure 8-6 TG-2000A annual charge setting screen
This function can not be used in the case of electric power count by PC direct connect (RS-485WHM).
CAUTION
42
[RE: Apportioning of air conditioning power consumption]
Since the watt-hour meter value of power consumption is apportioned by judging the operation status of the indoor unit from detailed
communication between the indoor and outdoor unit, this value can not be applied to the business certificate legally defined.
The same limitation is applied to the case of direct reading of measuring instrument unit.
In order to employ this system, therefore, it is recommended to conclude an agreement or contract between the building owner and
tenants stipulating that [The air conditioning charge should be collected through apportioned calculation based on the operation
status (including the temporary processing measure at trouble)].
(1) This system does not measure the power consumption of each indoor unit directly.
(2) As the system estimates the power consumption of air conditioning, the valued obtained herewith may not be applied to
the certificate of business transaction.
(3) Even if the operation time of air conditioners is same, the power consumption differs depending on the operating status.
(4) As air conditioners are powered even when they are stopping, the power consumption will be charged.
(5) One watt-hour meter should be connected to one air conditioner. If connected to plural air conditioners, an error will be
caused due to the apportioning of total power consumption.
(6) At the failure of PC, G-50A or PLC, the average apportioned value in the past may be adapted for temporary transaction as a solution.
(7) As the power consumption and gas consumption is taken in the form of a pulse, the performance and accuracy are
depending on that of the measuring instruments employed. Under this circumstance, we are not liable for the
performance and accuracy presented.
(8) As the resultant air conditioning charge is rounded to the nearest whole number at a figure not shown here, please
note that an error generates between the air conditioning charge of watt-hour meters and that of the block total.
8.2 Selection of Charging Function
The G-50A system provides the following 3 methods to calculate the charge by measuring instruments. For
the objective models that can be charged by each method, please refer to Table 4-3.
(1) Manual input of electric power consumption
This method is only applicable to the charging of electric power consumed by air conditioners.
Without using a watt-hour meter, this method calculates electric power consumption in a ratio of each
tenant (charge block) by using the daily operation amount and the set capacity of the air conditioner.
Utilizing the electric power apportioned charging calculation tool of the integrated software, the reading
value of the watt-hour meter of the outdoor and indoor units is input manually to calculate the air
conditioning charge.
As the standard charge can not be set by this method, it should be added by the user.
(2) Watt-hour meter pulse counting (Apportioning method)
This method is only applicable to the charging of electric power consumed by air conditioners.
By apportioning the electric power measured by the watt-hour meter connected to the air conditioner
and the daily operation of the air conditioner, the electric power consumption per tenant (charge block)
can be calculated by this method.
(3) Measuring instrument pulse counting (Direct reading method)
This charging method covers the Free Plan LOSSNAY for which the above apportioning method is not
available, the air conditioning electric power of A-control models, the general electric power of lamps
and plug sockets, and the charge of city water.
In such cases, you are kindly requested to install a measuring instrument for each charging block for
charging in a unit of measuring instruments.
(4) Electric power count by PC direct connect (RS-485WHM)
This charging method is only applicable to the charging of electric power consumed by air conditioners.
By apportioning the electric power measured by the watt-hour meter connected to the air conditioner
and the daily operation of the air conditioner, the electric power consumption per tenant (charge block)
can be calculated by this method.
43
8.3 Basic Composition and Required Materials
8.3.1 Manual input of electric power consumption
This method is only applicable to the charging of electric power consumed by air conditioners.
(1) Basic composition
Charge
license
Input
G-50A
LOSSNAY
ME remote
controller
Power supply
unit
LOSSNAY
Uninterrupted
power source (UPS)
PC for centralized control
ME remote
controller
Install integrated software
Figure 8-7 Basic composition of electric power manual input method
(2) Required materials
Table 8-1 shows the materials required to carry out the electric power manual input method.
Table 8-1 Materials required for simplified charging
1
44
Name (Model name)
PC for centralized control
Manufacturer
PC/AT convertible unit
PC for apportioning
PC/AT convertible unit
Integrated software (PAC-TG2000A)
Charge license
Web monitor license
Uninterrupted power sourse (UPS)
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
(referense)
Remarks
Confirmed operation of IBM, DELL, Hp Compaq.
For PC spec., refer to Table 6-4.
PC for apportioned calculation of each tenant using CSV file
output from TG-2000A.
Requires the table calculation software (EXCEL).1
Requires for each G-50A.
Requires for each G-50A.
FREQUPS A-series.
(Line interactive system)
This software (apportioning support software) is in the install disk of TG-2000A.
(3) Setting items
Table 8-2 shows the items of TG-2000A charging system setting and that of the charging required to
carry out the electric power manual input method.
Table 8-2 Setting items of the electric power manual input method
Major item
Apportioning mode
setting
Subordinate item
Apportioning standard data
Indoor unit setting
Charge block setting
Seasonal charge setting
Weekly charge setting
Annual charge setting
Currency setting
Charge block setting method
Charge block setting
Requirement
Summer period setting
Unit price
Charging time frame
Pattern setting
Special day setting
Detail
Select one apportioning standard data from the below.
1 Capacity saving (operating capacity) --- Default
2 Thermostat time (operating time)
Input the following data to each indoor unit.
1 Indoor unit capacity (kW) (cooling)
2 Indoor unit fan capacity (kW)
Select the same setting with operation block or new charge block setting.
For setting of charge block newly, set it in a unit of operation block.
Select whether changing the unit price by summer winter.
When changing the unit price by seasons, set the period of summer.
Set the unit price for 5 maximum.
Set 5 unit prices to the 10 time frames maximum. When the seasonal
rates have been set, set to the summer and winter respectively.
Set 5 charging time frame patterns.
Assign the 5 patterns previously set to 50 days a year.
Type of currency set up
45
8.3.2 Watt-hour meter pulse counting (apportioning) method
This method is only applicable to the charging of electric power consumed by air conditioners.
(1) Basic composition
Single-phase 200V
Charge
license
Input
G-50A
Power supply
unit
Single-phase 200V
3-phase 200V
Outdoor unit system
watt-hour meter
Indoor unit system watt-hour meter
Indoor unit watt-hour meter
PLC (Pulse counting software installed)
Uninterrupted
power source (UPS)
PC for centralized control
Install integrated software
Figure 8-8 Basic composition of electric power pulse counting method
(2) Required materials
Table 8-3 shows the materials required to carry out the electric power pulse counting (apportioning)
method.
Table 8-3 Materials required for electric power apportioned charging
Name (Model name)
PC for centralized control
Maker
PC/AT convertible unit
Integrated software (PAC-TG2000A)
Charge license
Web monitor license
PLC
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Electric power pulse counting software
Watt-hour meter with pulse oscillator
Uninterrupted power source
(UPS)
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
(reference)
Remarks
Confirmed operation of IBM, DELL, Hp Compaq.
For PC spec., refer to Table 6-4.
Requires for each G-50A.
Requires for each G-50A.
PLC for pulse counting can be connected up to 5 sets.
For the PLC specification, refer to Table 12-1.
For detail, refer to Table 8-4.
For the specification of the watt-hour meter, refer to Table 10-1.
FREQUPS A-series.
(Line interactive system)
[Selection of pulse counting software]
The pulse counting software to be installed to PLC differs depending on the IP address of the PLC.
Refer to Table 8-4 for selection. One set of PLC can count the measuring instruments up to 32 sets.
Table 8-4 Watt-hour meter pulse counting software
Model name of watt-hour meter pulse counting software
PAC-YG11CDA
IP address
192.168.1.151
Explanation
Fixed to the left address.*
*In case of IP address needs to be changed, please ask to MITSUBISHI ELECTRIC for details.
46
(3) Setting items
Table 8-5 shows the setting of measuring instrument of TG-2000A, charging system and charging set
items required for the electric power pulse counting (apportioning) method.
Table 8-5 Setting items of the electric power pulse counting method
Major item
PLC quantity setting
PLC setting
Subordinate item
IP address
Installation site
Measuring instrument
setting
Apportioning mode
setting
Apportioning standard data
Processing of crankcase
heater
Indoor unit apportioning
mode
Setting for outdoor unit
to watt-hour meter
Outdoor unit setting
Setting for indoor unit to
watt-hour meter
Indoor unit setting
Charge block setting
Charge block setting method
Charge block setting
Currency setting
Standard charge setting
Seasonal charge setting
Weekly charge setting
Requirement for setting
Summer period setting
Unit price
Charging time frame
Annual charge setting
Setting of measuring
instrument unit price
Pattern setting
Special day setting
Unit price
Detail
Set the quantity of PLC to be connected.
Max. 32 sets can be set to 1 PLC.
Max. 5 sets to PLC for pulse counting.
Determine the IP address of PLC.
The following is recommended for the default in TG-2000A.
192.168.1.151 ~ 192.168.1.155
The installation site of PLC can be set.
The type (air conditioner, electric 1, electric 2, gas, city water, calorie),
name, installation site and the pulse unit of measuring instruments are
set.
Select one apportioning standard data from the below
1 Capacity saving (operating capacity) --- Default
2 Thermostat time (operating time)
Select the apportioning method of outdoor unit crankcase heater.
1 Mode 1: Apportioning without special consideration (apportioning
together)
2 Mode 2: Separate apportioning --- Default value
3 Mode 3: No apportioning
Select the apportioning method of power consumption of indoor unit.
1 Mode 1: No apportioning (installing watt-hour meter)
2 Mode 2: Apportioning --- Default value
Set the outdoor unit connected to each watt-hour meter.
Set the crankcase heater capacity of each outdoor unit.
(Automatic setting from the database of TG-2000A in principle)
Set the indoor unit connected to each watt-hour meter.
Be careful that A-control indoor unit or LOSSNAY can not be measured
by same watt-hour meter.
Input the following data to each indoor unit.
1 Indoor unit capacity (kW) (under cooling mode)
2 Indoor unit fan capacity (kW)
3 Indoor unit heater capacity (kW)
(Automatic setting from the database of TG-2000A in principle)
Select the same setting with operation block or new charge block setting.
For setting of charge block newly, set it in the unit of operation block.
Type of currency set up
Set the standard charge to each charge block and measuring instrument
(except for air conditioners).
Select whether changing the unit price by summer and winter.
When changing the unit price by seasons, set the period of summer.
Set the unit price up to 5 watt-hour meters for air conditioning and that
for other applications.
Set 5 unit price frames to the 10 time frames maximum per weekday.
When the seasonal rates have been set, set it to the summer and winter
respectively.
This setting is common for all measuring instruments.
Set 5 charging time frame patterns.
Assign the 5 patterns previously set to 50 days a year.
In accordance with the classification of measuring instruments other than
watt-hour meters, set five unit prices maximum.
47
8.3.3 Measuring instrument pulse counting (direct reading) method
(1) Basic composition
Single-phase 200V
Charge
license
Input
G-50A
LOSSNAY
Power supply
unit
Charge block
Single-phase 200V
LOSSNAY
Charge block
Indoor unit system watt-hour meter
Charge block
Indoor unit system watt-hour meter
Indoor unit system watt-hour meter
PLC (installed with pulse counting software)
Uninterrupted
power source (UPS)
A measuring instrument should be
installed for each charge block.
PC for centralized control
Install integrated software
Figure 8-9 Basic composition of measuring instrument pulse counting (direct reading) method
(2) Required materials
Table 8-6 shows the materials required to carry out the measurement charging by direct reading. The
materials same as that for the apportioning method are required.
Table 8-6 Materials required for measuring instrument charging
Name (Model name)
PC for centralized control
Maker
PC/AT convertible unit
Integrated software (PAC-TG2000A)
Charging license
Web monitor license
PLC
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Electric power pulse accounting
software
Watt-hour meter with pulse oscillator
Water meter with pulse oscillator
Gas meter with pulse oscillator
Calorie meter with pulse oscillator
Uninterrupted power source (UPS)
Mitsubishi Electric
Remarks
Confirmed operation of IBM, DELL, Hp Compaq.
For PC spec., refer to Table 6-4.
Requires for each G-50A.
Requires for each G-50A.
PLC for pulse counting can be connected up to 5 sets.
For the PLC specification, refer to Table 12-1.
For detail, refer to Table 8-4.
Mitsubishi Electric
For the specification of the watt-hour meter, refer to Table 10-2.
For the specification of measuring instruments, refer to Table
10-1.
Mitsubishi Electric
(reference)
FREQUPS A-series.
(Line interactive system)
[Selection of pulse counting software]
The pulse counting software to be installed to PLC differs depending on the IP address of the PLC.
Refer to Table 8-4 for selection. One set of PLC can count the measuring instruments up to 32 sets.
(3) Setting item
For this method, the contents of setting differ depending on the load to be measured. Conduct each
setting by following the setting items shown in the electric power pulse counting (apportioning) method.
48
8.3.4 Power consumption PC direct reading system (Apportioning system)
This system can only be applied to the charging of power consumption by air conditioners.
(1) Basic configuration
1-phase 200V
Charge
license
Input
G-50A
LOSSNAY
Transmission
line powering
unit
1-phase 200V
LOSSNAY
3-phase 200V
Outdoor unit system
watt-hour meter
Indoor unit system watt-hour meter
Indoor unit watt-hour meter
RS-485/RS-232C Converter
Uninterrupted
power source system (UPS)
PC for centralized control
Install integrated software
Figure O-O Basic configuration of power consumption PC direct reading system (RS-485 Watt-hour meter)
(2) Required materials
Table O-O shows the required materials to execute the power consumption PC direct reading system
(RS-485 watt-hour meter system).
Table O-O Required materials for power consumption apportioned charging
Material name (Model name)
PC for centralized control
Integrated software (PAC-TG2000A)
Web monitor license
Charge license
RS-485 watt-hour meter
Maker
PC/AT compatible machine
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Uninterrupted power source (UPS)
Mitsubishi Electric
(Reference)
Remarks
Action verified with IBM, DELL, Hp Compaq
Requires for each G-50A system
Requires for each G-50A system
For the watt-hour meter specification, refer to Table 10-3.
Connectable up to 30 sets
FREQUPS A Series
(Line interactive system)
49
(3) Setting items
Table O-O shows the setting of the measuring instruments, charging system, and charge setting items
of TG-2000A required to execute the power consumption pulse counting system (apportioning system).
Table O-O Setting items of power consumption pulse counting system
Major item
WHM number setting
Minor item
WHM setting
Address
Installation site
Pulse unit
Apportioning mode setting
Apportioning standard data
Transaction of crankcase
heater
Apportioning mode of
indoor unit
Setting between
outdoor unit - watt-hour meter
Outdoor unit setting
Setting between
indoor unit - watt-hour meter
Indoor unit setting
Charge block setting
Setting method of charge
block
Setting of charge block
Currency setting
Standard charge setting
Power rate setting
Necessity of execution
Setting of seasonal period
Unit price
Charging time frame
50
Detail
Connectable RS-485 watt-hour meter counts for 30 sets
maximum.
Usable WHM is specified (Refer to Table 10-3.)
Deciding WHM address
Possible to set PLC installation location
Setting the kWh/pulse of pulse
(Recommending 1kWh/pulse or less)
Selecting one of the apportioning standard data of outdoor
unit among two below.
q Capacity saving value (Consumed capacity) - - - Default
value
w Thermostat time (Operating time)
Selecting the transaction method of power consumption by
outdoor unit crankcase heater.
q Mode 1 : Apportions not taking it specifically (apportioning
together)
w Mode 2 : Apportions separately - - - Default value
e Mode 3 : No apportioning
Selecting the transaction method of indoor unit power
consumption
q No apportioning (installing watt-hour meter)
w Apportions - - - Default value
Setting the outdoor unit connected to measuring instrument
unit
Setting the crankcase capacity of each outdoor unit
(Basically it is set automatically from the database in TG2000A)
Setting the indoor unit connected to measuring instrument unit
Be careful that indoor unit can not be measured with the same
watt-hour meter of A-control indoor unit or LOSSNAY.
Entering the data below for each indoor unit
q Indoor unit capacity (kW) (Cooling mode)
w Indoor unit fan capacity (kW)
(Basically it is set automatically from the database in TG2000A)
Selecting to use the same block of operation block or set a
charge block independently
Setting in a unit of the operation block to set a charge block
independently
Selecting or setting the currency to use
Setting the standard charge for each charge block and
measuring instrument (other than that for air conditioning)
Selecting the time frame only for daytime, or daytime and
nighttime and the use of seasonal rate
Defining the summer period when applying the seasonal rate
Setting the unit price for air conditioning watt-hour meter,
daytime and nighttime, and season (daytime and nighttime).
Setting the charging time frame for the daytime and nighttime
being set per weekday and weekend. When the seasonal rate
is being set, set it individually.
8.4 Mechanism of Charge Calculation
The mechanism of electric power apportioned charge calculation by TG-2000A is given below.
Single-phase
200V
3-phase
200V
Outdoor unit (M-NET)
G-50A
Crankcase heater
= 45W
HUB
Charge block 1
Power supply unit
PC for centralized control
Outdoor unit (M-NET)
Indoor unit
Charge block 2
Indoor unit
Crankcase heater
= 45W
Charge block 3
Indoor unit
Charge block 4
Indoor unit
Figure 8-10 Example of charging system [Electric power pulse counting (apportioning) method]
8.4.1 Role of each item
(1) Watt-hour meter with pulse oscillator (not required at using the electric power manual input method)
The watt-hour meter with pulse oscillator outputs pulses corresponding to the power consumption of air conditioners. The
pulse has unit (weight) such as 1kWh or 0.1kWh per 1 pulse for example. (TG-2000A recommends 1kWh or less per pulse.)
This watt-hour meter is essential when using the apportioning method or direct reading method.
RS-485 electric meter is needed for electric power count by PC direct connect (RS-485WHM). (1kWh or less per
pulse is recommended.)
(2) PLC (not required at using the electric power manual input method and electric power
count by PC direct connect)
The PLC (Sequencer) integrates the pulse output from watt-hour meters by dividing into the charging
time frame being set by TG-2000A.
In the case when the apportioning or
Count
direct reading method is used, “Pulse
Example)
Charging
Charging
Charging
Charging
Charging
Add +1 at 1kW/pulse.
counting software: PAC-YG11CDA” is
time
time
time
time
time
frame 1
frame 2
frame 3
frame 4
frame 5
required by PLC.
(3) G-50A
The G-50A monitors the operation information of indoor units required by charging for each 1 minute,
and holds the information in a unit of indoor unit dividing in the charging time frame. Such process is
conducted by G-50A regardless of the charging methods.
The information required for charging are as follows (Includes electric power count by PC direct connect (RS-485WHM)).
1 Operation time of indoor unit fan
2 Operation time of indoor unit auxiliary heater
3 Capacity saving amount (Time)
4 ON time of thermostat
Information
In the case of the direct reading
Holding in a unit of indoor unit
collection/clearing
method, the information collection by
per charging time frame
per minute
G-50A is not necessary. However, the
Auxiliary
Capacity Thermostat
Fan
heater
license registration is required as the
saving
ON
operating operating
amount
time
time
time
charging function is used as same as
51
the other methods.
(4) TG-2000A
Charge block
By collecting charging information from PLC
and G-50A, the TG-2000A conducts the
apportioning calculation of these data during
AM 4:00 ~ 7:00 once a day. As the electric
power consumption collected from PLC
represents the integrated value, TG-2000A
takes a difference with the electric power
consumption of the previous day and holds the
data converted in the daily power consumption.
On the clearance day, the daily apportioning
data is added and the standing charge is also
added for clearing.
Charging
time
frame 1
Charging
time
frame 2
For 1 day
IC1
IC2
IC3
For 2 days
IC1
IC2
IC3
For 3 days
IC1
IC2
IC3
Charging
time
frame 5
Electric power
integrated value
collected from
PLC
Calculates total
electric power
consumption in a
unit of day per
charging time frame
Apportions daily total power
consumption by indoor unit operation.
On clearance day, the standing
charge is added by summing up each
charge block in total.
8.4.2 Apportioning calculation method of outdoor unit
The apportioning calculation method when a watt-hour meter is installed on the power source line of
outdoor unit is shown here taking Figure 8-10 as an example.
(1) Decision of outdoor unit apportioning calculation method
The calculation method differs depending on the processing ways of electric power consumed by the
crankcase heater which is the waiting electric power of the outdoor unit. The processing methods
include the mode 1 ~ mode 3 required to be set on TG-2000A.
Mode 1: Apportioning including crankcase heater portion
Mode 2: Apportioning calculating crankcase heater portion separately (Default value)
Mode 3: Apportioning not including crankcase heater portion
Mode 1: Apportioning of [Daily total power consumption] (100kW)
Charging time frame 1
Daily total power
consumption
Example) 100kW
Charging time frame 1
Mode 2:
Apportioning of [Daily power consumption] and [Power
consumption by crankcase heater] respectively (97.84 kW and
2.16kW)
Daily power
consumption
Example) 97.84kW
Mode 3:
Apportioning of [Daily power consumption] only not including
[Power consumption by crankcase heater] (97.84kW only)
For crankcase
heater
(25W × 24 hours) × 2 sets Example) 2.16kW
(2) Decision of apportioning standard data
The apportioning standard data of the indoor units used by each tenant (charge block) can be selected
from the following two methods. (Selection by TG-2000A)
These data are integrated by G-50A for each indoor unit per charging time frame and collected by
TG-2000A once a day.
1 Standard data 1: Capacity saving amount (default) ⇒ Integrates power consumption corresponding
to operating capacity
2 Standard data 2: Thermostat ON time
⇒ Integrates ON time of thermostat
Standard data 1: Capacity saving amount (Operating capacity amount)
Charging time
frame 1
50%
100%
Integrates operating
time for each charging
time frame
Integrates the power
consumption to meet the
operating capacity in time
unit
Example) 50% ⇒ 0.5 minutes
Standard data 2: Thermostat ON time (operating time)
ON!
Time during [operation]
52
(3) Apportioning by apportioning standard data
To calculate [Power consumption per indoor unit], multiply the operation time by the standard data being
calculated for each indoor unit per charging time frame with each capacity. Sum up this [Power
consumption per indoor unit] for the indoor units inside the watt-hour meter to obtain [Indoor unit total
power consumption]. Using a ratio of these two data, calculate [Daily power consumption by indoor unit]
once a day.
Power consumption of indoor unit 1
4.5kW
Integrated operation
time of charging
time frame 1
Charging time frame 1
Daily power
consumption
Example) 97.84kW
Power consumption
of indoor unit 1
Charging time frame 1
For crankcase heater
Example) 2.16kW
Charging time frame 1
Daily power
consumption
of indoor unit 1
Power consumption
of indoor unit 2
Total power consumption of indoor units
(4) Processing on clearance day
On the clearance day, sum up [Daily power consumption by indoor unit] for each tenant (charge block)
and add the standing charge to calculate the monthly electric charge.
CAUTION
The standing charge is only added at calculation on the clearance day, and printed
out after summing up the air conditioning charge. Printing out is not available for the
calculation of specified day.
53
8.4.3 Apportioned calculation of indoor unit
Figure 8-10 shows an example of apportioning method when a watt-hour meter is installed on the indoor
unit power source line.
(1) Decision of indoor unit apportioning mode
First decide to carry out the apportioning of indoor unit or not.
When a watt-hour meter is not connected to the power source line of indoor unit, set to [No
apportioning].
No apportioning: The electric power consumption of indoor unit will not be apportioned.
Apportioning
: The electric power consumption of indoor unit will be apportioned by “Integrated time
× Fan capacity
When “Apportioning” is selected, [Power consumption per indoor unit] is integrated for each charging
time frame per indoor unit by dividing it into [Auxiliary heater power consumption] and [Fan power
consumption].
For the models without auxiliary heater, [Fan power consumption] = [Power consumption per indoor unit]
is applied.
For the auxiliary heater and fan operation time, G-50A collects it from the indoor unit in a cycle of 1
minute.
0.085kW × 3.45 hours
Charging time frame 1
Fan
operation
time
Fan
capacity
Auxiliary
heater
operation
time
Auxiliary
heater
capacity
1.0W × 1.23 hours
Fan power
consumption
Example) 0.29325kW
Auxiliary heater
power consumption
Example) 1.23kW
Charging time frame 1
Indoor unit power
consumption
Example) 1.52325kW
(2) Apportioning calculation of indoor unit
[Power consumption per indoor unit] integrated for each indoor unit per charging time frame is summed
up for the indoor units in the watt-hour meter system to obtain [Total power consumption of indoor units].
Using a ratio of these two data, [Power consumption] per charging time frame collected from PLC or
RS-485WHM is apportioned once a day.
Indoor unit
power
consumption 1
Charging time frame 1
Daily power
consumption
Indoor unit
power
consumption 1
Charging time frame 1
Daily power
consumption
of indoor unit 1
Indoor unit
power
consumption 2
Total power consumption of indoor units
(3) Processing on clearance day
On the clearance day, sum up [Daily power consumption by indoor unit] for each tenant (charging block)
and add the standard charge to calculate the monthly electric charge.
CAUTION
54
The standard charge is only added at calculation on the clearance day, and printed
out after summing up the air conditioning charge. Printing out is not available for the
calculation of specified days.
8.4.4 Manual input of electric power consumption
The calculation method of manual input not connecting watt-hour meter is given below.
With this method, calculation is performed by employing the reading value of watt-hour meter without using
watt-hour meter or PLC itself.
Collects and stores the following operation data of air
conditioners.
1 Indoor unit fan operation time
2 Indoor unit auxiliary heater operation time
3 Capacity saving ratio
4 Thermostat ON time
G-50A
Calculating the apportioning parameter based on the data collected from G-50A
PC for centralized control
(Integrated software)
Apportioning parameter file
(CVS format)
Using “Charging ratio support software,”
enter the reading value of watt-hour
meter, and apportion it for each tenant.
Preparation
of bill
Figure 8-11 Mechanism of electric power manual input
(1) Standard charge
This method can not process the standard charge as its sole function is to calculate air conditioning
charge based on the operation data. The standard charge should be added by the user additionally.
(2) Air conditioner charge
The air conditioning charge of each tenant can be calculated by using “Charging ratio support software
(EXCEL)” locating in the Integrated software install CD-ROM.
For the parameters required to calculate the charge, use “Apportioning parameters” and “Charging
ratio” explained in the Items 8.4.2 and 8.4.3.
By employing the file prepared by the integrated software based on these parameters (CSV file) and the
manual input of the electric power consumption of indoor/outdoor units, the air conditioning charge per
charge block (tenant) can be calculated by using a calculation software like “Charging rate support software.”
(3) Apportioning parameters of outdoor unit
As explained in the item 8.4.2, calculate the value by using the indoor unit rated capacity for each
indoor unit per charging time frame, and total the value multiplied by the unit price for the charging
blocks, and then calculate a ratio to the total of all blocks.
Apportioning parameter =
Integrated value of indoor unit capacity control level (Capacity saving ratio or thermostat ON time) ×
Charging parameter of indoor unit rated capacity = Σ (Apportioning parameter × Unit price)
Charging ratio [%] =
Total charging parameter of relative block
Total charging parameter of all blocks
(4) Apportioning parameters of indoor unit
As outlined in the item 8.4.1, calculate by using the rated electric power of the fan and auxiliary heater
of indoor unit per charging time frame and sum up the value multiplied by the unit price for charging
block, and calculate a ratio to the total of all blocks. For the indoor unit without auxiliary heater, amount
of “ON time of auxiliary heater × auxiliary heater electricity power consumption” will be zero.
Apportioning parameter = Operation time of indoor unit fan × Rated power consumption + ON time of
auxiliary heater × Auxiliary heater electricity power consumption
Charging parameter = Σ (Apportioning parameter × Charging unit price)
Charging ratio [%] =
Total charging parameter of relative block
Total charging parameter of all blocks
55
(5) Charging ratio support software
By using “Charging ratio support software” (EXCEL) provided with the integrated software, the charge
apportioning and bill preparation for each tenant can be performed.
Through the reading of the operation time data file prepared by TG-2000A from the menu screen of the
charging ratio support software, automatic calculation will be carried out. By inputting the reading value
of each watt-hour meter manually, apportioning calculation will be performed. A bill can be automatically
prepared by merely selecting the tenant name.
For the data file of operation amount, CSV1 file created on the clearance day automatically or that
output from the air conditioning charge confirming screen can be used.
The file output can be changed freely. (Default value: C:¥TG-2000A¥Chr¥Chargefile¥)
Charging ratio support
software
Manual input of reading
value of watt-hour meter
Result of apportioning
Bill Form
1
Outputs when specifying the air conditioning charge output to “File output” in the charge relating setting of TG-2000A (user setting screen).
56
8.4.5 In the case of measuring instrument pulse counting (direct reading) method
The measuring instrument pulse counting (direct reading) method is explained here.
For this method, charging is practiced only by the measuring instrument value collected by PLC.
Therefore, a measuring instrument is required to install for each charge block (tenant).
It is required to prepare PLC, the pulse counting software and the license registration of all G-50As1.
G-50A
Integration and storing by counting the pulse from
measuring instrument
PLC (pulse counting
software installed)
Calculation based on the data collected from PLC.
Storing for the past 3 months
File output
PC for centralized control
(Integrated software)
Output of apportioned result
Figure 8-12 Mechanism of electric power pulse counting (direct reading) method
(1) Standard charge
The standard charge is calculated by referring the contract rate of electricity, gas and city water and set
to TG-2000A for each measuring instrument.
(2) Unit price
For the unit price, the electricity may be set in 2 types (Electricity 1 and Electricity 2), and gas, city water
and calorific amount be in 1 type.
However, the time frame is set to all measuring instruments collectively.
(3) Charge
In this method, the charge may be calculated by multiplying the values of the measuring instruments
provided by the unit price and further adding the standard charge.
1
In the case of the measuring instrument pulse counting method, the operation information of air conditioners is not required, but the license
registration to G-50A is essential.
57
8.5 Output of Charging Data
Thanks to the use of TG-2000A, the apportioned result and power consumption can be output per each
watt-hour meter, unit price1 or block. The output content (format) differs depending on the content of
“Charging relations” set among the user setting items on the initial setting screen.
Select the output format to meet your purpose of use.
Table 8-7 List of charging data output format
Output format
Output data
Standard print
Apportioned power consumption
[kWh]
Standard charge
Charge
Charging
block data
Detail of unit price
classification *1
Per unit
Per unit price
Detail of unit
Detail of unit price
Detail of charging
unit price per block
Detail of unit
Detail of unit price
Per block
[yen]
[yen]
Total air conditioning charge [yen]
Apportioned power of outdoor
unit
[kWh]
Per unit,
per unit price
Apportioned power of indoor unit
[kWh]
Per unit,
per unit price
Measuring instrument
Measuring
instrument
data
Detail of unit price
Detail of unit price
Standard charge
[yen]
Charge
[yen]
Total air conditioning charge [yen]
Detail of unit price
(per unit price)
Detail of unit price
(apportioned result)
Whole block output
(watt-hour meter)
*1: This function is not available for electric power count by PC direct connect (RS-485WHM).
1
With the former versions of Ver.4.30 of TG-2000A, printing per unit price (time frame) or per unit can only be done only when the clearance day
is set. In calculating for a specified date, the output format of standard printing can only be performed.
58
8.6 Charging Method
As shown below, the charging in this system can be set as follows. Divide the time frame 0:00 ~ 24:00 into
10 charging frames, and assign 5 charging unit prices to each charging frame respectively for setting.
Please note that each setting is common within the system.
0:00
6:00
12:0
18:0
24:0
Closing time
example
A-company
Outside time frame
B-company
Inside time frame
Outside time frame
C-company
Outside time frame
Inside time frame
Outside time frame
Inside time frame (24-hour operation)
TG-2000A setting example
Charging time
frame setting
Charging frame 1
2
Unit price setting example
Unit price
setting
Unit price 2
3
Charging frame 3
4
Charging frame 5
Unit price 1 (Inside basic time frame): 8:00~18:00
Unit price 2 (Inside basic time frame): 18:00~8:00
Unit price 3 (Operation inside/outside basic time frame)
Unit price 4 (Holiday)
Unit price 1
3
= 100 yen
= 50 yen
= 70 yen
= 60 yen
Unit price 2
As the above setting can be made for each weekday individually, the unit price specified for holiday can be employed.
Figure 8-15 Setting example of charging time frame and unit price
In the case of electric power count by PC direct connect (RS-485WHM), charging unit (daytime, nighttime,
weekday, weekend and seasons) can be set up. Setting will be different from Figure 8-15.
1
Charging can not be made without this setting.
59
8.7 Caution for Using Charging Function
Please observe the following points when using the charging function.
(1) Caution for each control/setting
● When using the charging function (power apportioned charging), make sure to conduct clearing
process before setting or modifying the system composition, monitoring display setting, and charging
system setting.
When any item has been modified, the setting of the charging system should be modified or
identified.
● About the time setting
Since the change of time affects the power apportioned calculation of air conditioning charge, do not
practice it frequently in waste. (Suppress the frequency of time adjustment to once a month or the
like.)
For the time setting, use the time setting function of TG-2000A. Never attempt to conduct to change
the setting by Web browser or “Property of clock and time” of Windows.
(2) Caution for air conditioning charge
● To use this charging function (power apportioned charging), it is recommended to conclude an
agreement between the building owner and tenants stipulating that the air conditioning charge shall
be collected by the apportioned charging based on the operation records (including temporary
measure taken at trouble).
● To prevent the stopping of integrated software or the destruction of data at power failure or
instantaneous power stoppage, recommend to install an uninterrupted power source system.
(Recommended Model: Mitsubishi Electric FERQUPS-A series)
● It is recommended to keep the result of air conditioning charge in other way than storing in the
centralized control PC. (for example to print on paper)
● The registration of charge license to G-50A unit is required for all units registered to the centralized
control PCs. Without the registration, the air conditioner charging function does not operate normally.
(All of the G-50A requires Web monitor license registration.) Please refer to section 2,3 for function
licence.
(3) Calculation of air conditioning charge
● The calculation method of air conditioning has originally been developed by us where the
apportioning parameter is calculated judging from the operation state of the air conditioner.
For this reason, it differs far from the system installing a watt-hour meter on the power supply site of
each air conditioner. If plural outdoor units are apportioned with one watt-hour meter, the calculation
will be carried out regarding the plural units as a one large outdoor unit. Here the COP of each
outdoor unit will not be taken into consideration.
● When trouble is occurred on the system, such measure will be taken as to forward the apportioning
calculation to the next day or not to conduct the apportioning calculation.
To modify the apportioning data, use the function “Data maintenance of charging.”
● In the case of the power consumption PC direct reading (RS-485WHM) system, the corresponding
power consumption can not be apportioned or counted when a WHM generates trouble. Please use
the function of [Maintenance of charging data] in such case.
● Since the air conditioning charge is calculated in a unit of charging block, the indoor units not
registered to the charging block will not be reflected to the air conditioning charge.
● As the resultant air conditioning charge is rounded off at a figure not shown here, please note that an
error will be induced between the air conditioning charge of watt-hour meters and that of the total
blocks.
60
9. Step 6: Energy Saving/Peak Cut Control
Here the energy saving control or peak cut control to be performed by G-50A is set.
This setting is essential in conducting the energy saving control or peak cut control.
As this function is optional, the license registration to G-50A is necessary to use.
A different license should be applied to the energy saving control and peak cut control respectively, the
license for your desired usage should be registered.
- Energy saving setting
- Monitoring of current energy saving
state
The registration of
energy saving control
or peak cut control is
necessary.
- Set temperature control (±2˚C)
- Fan (thermostat OFF) control
- Stopping control
G-50A
PC for centralized
control (Integrated
software)
Collects daily
power
consumption
Collects current
daily consumption
(every per minute)
- Capacity saving control
(60/70/80/90%)
Watt-hour
meter
PLC
(Pulse counting
software installed)
Counts for electric power pulse
(*Requires to execute the peak cut control)
Figure 9-1 Energy saving/peak cut control system composition
Notice
● For PLC, the pulse counting software (Ver. 1.01 ~ ) used for the power apportioning
function can be applied. (Pulse counting software: PAC-YG11CDA, etc. installed)
● For the pulse counting software used at peak cut control, employ that Ver. 1.01 or
later.
● For the peak cut control, use one set of watt-hour meter for each G-50A.
● The peak cut control license contains the function of energy saving control.
● Peak cut control is not available in RS-485WHM system.
CAUTION
[Re: Energy saving/peak cut function]
● During the use of the peak cut function, any damage such as the exceeding of
power consumption than the contract demand should induced due to the trouble
of G-50A or PLC, such damage will not be indemnified, for which your kind
understanding is requested.
61
9.1 Outline
Applying the energy saving setting from the integrated software TG-2000A allows conducting the energy
saving control by the indoor/outdoor units or peak cut control by using PLC.
Table 9-1 Outline specification of energy saving control/peak cut control
Energy saving
control
Item
Indoor unit control
Outdoor unit
control
Peak cut control
Monitoring of
energy saving
control
status/history1
Control status
Daily report
Monthly report
1
Content
The integrated software sets the following energy saving items and energy saving time to G-50A
per operation block. G-50A conducts energy saving operation to the indoor units with the set
detail.
1 Temperature control (±2°C)
2 Fan control (Thermostat ON)
3 Stopping control
For the block with temperature difference between set and inlet temperature exceeding the set,
the energy saving control set at level 0 is not applied.
The integrated software sets the following energy saving items and energy saving time to G-50A
per outdoor unit and the set G-50A conducts the energy saving operation for the outdoor unit.
Connecting the watt-hour meter (PLC) allows conducting energy saving operation meeting the
power consumption. The control object and detail are same as that of the energy saving rotated
control. One set of the watt-hour meter can be set for each G-50A.
During the energy saving control, the energy saving mark is displayed on the air conditioner
group icon of Web, integrated software.
Daily power consumption and control level can be monitored by the integrated software. G-50A
can hold the data for 3 days max. including that of today, yesterday and the day before yesterday.
Monthly power consumption can be monitored by the integrated software (for 62 days max.).
The integrated software monitors from PLC for display and storing.
Daily report and monthly report are the function only effective when “Energy saving peak cut control license” is registered.
To collect the energy saving status and history data, TG-2000A is required always to operate. The automatic output CSV file of daily/monthly
reports can be stored for 2 years maximum.
62
9.2 Energy Saving Control/Peak Cut Control
9.2.1 Energy saving control
The energy saving control includes the items listed on Table 9-2, and they can be set from the integrated
software for each block freely.
After setting, G-50A conducts energy saving control on to the air conditioning group within the operation
block in a unit of 3 (3/6/9/15/30 minutes) within a 30 minutes not allowing overlapping1 the control time.
In consideration of comfort, it can be set not to apply the set energy saving control2 to the block of which
temperature difference between the set and inlet temperature exceeds the temperature difference freely
set (3°C ~ 9°C).
(Setting of ineffective energy saving control by temperature difference)
Table 9-2 Energy saving control items
Control unit
Indoor unit
Control items
Set temperature
control
Fan (thermostat
OFF) control
Stopping control
Outdoor unit
Capacity saving
control3
Control detail
Cool/dry: +2°C, Heat: –2°C (No control for fan, auto)
* Shifting by ±2°C at control start time, returning to original temp. at control finish.
* When set temp. was changed from local remote controller, browser, G-50A unit or schedule
during temp. control, and the temp. value at control finish differed from that at the start, it
does not return to the state before the control.
Capacity saving 0% control for Free Plan indoor units and A-control Slim indoor units.
Fan operation control for the models before Free Plan.
* When the mode was changed from remote controller, browser, G-50A unit or schedule
during fan mode control, and the mode at control finish was that other than fan mode, it
does not return to the state before the control.
Stopping outdoor unit
* Transmits “STOP” at control start time and returns to the original start/stop state at control
finish.
* When the operation was made from local remote controller, browser, G-50A unit or
schedule during stopping control, and the state at control finish was not stopping, it does
not return to the state before the control.
The maximum value of outdoor unit operating capacity can be controlled to 60%/70%/80%/
90% (in 10% unit).
Selecting G-50A for setting target
Select G-50A objective for
energy saving setting.
Batch setting for whole
building is possible.
Selecting indoor unit setting unit
Select block objective for energy
saving control or batch setting
for whole building.
Selecting outdoor unit setting unit
Select unit objective for energy
saving control or batch setting
for whole building.
Setting control detail and time
Select energy saving control detail
and time of indoor unit.
Setting ineffective temp. difference
for energy saving control
Set ineffective temp. difference for energy
saving control (Ineffective 3 ~ 9°C).
Setting control detail and time
Select energy saving control detail and
time of outdoor unit.
Figure 9-2 TG-2000A energy saving control setting screen
1
The control time may be overlapped depending on the group numbers inside the block and control time.
Energy saving control is applied at the levels 1 ~ 4 regardless of the temperature difference.
3 Controllable only for City Multi air conditioners. (Do not set to Multi-S.)
2
63
(1) Energy saving control for indoor unit
For the energy saving control for the indoor unit, select the time portion to be applied to the energy
saving control items listed in Table 9-2 from 0/3/6/9/15/30 minutes. By dividing those items by the group
numbers in the operation block evenly, the energy saving control is applied to the groups starting from
that with smaller group number in order. When “30 minutes stopping” is being applied to save energy,
ON/OFF operation can not be performed by any controller.
[In case of the energy saving control of indoor unit for 6 minutes when 5 groups is in one block for
example]
0
3
6
9
12
15
18
21
24
27
30 (min)
Group 1
Group 2
Group 3
Group 4
Group 5
1 Times of rotation:
For the control of 6 minutes, 3 minutes control is applied for 2 times (= 6 min./3 min.).
2 Cycles of rotation:
From the times of rotation in 1, the cycle of rotation for 30 minutes is to be 15 minutes (= 30
min./2 times)
3 Intervals of rotation:
From the cycles of rotation in 2, the rotation interval of each group in a block counts for 3 minutes
(= 15 min./5 groups). (If indivisible, round it to the nearest whole number.)
Figure 9-3 Example of indoor unit energy saving control
Notice
64
● In the case of the block setting stepped across from TG-2000A to G-50A, only the unit
controlled by the G-50A is set as the block on the G-50A.
Here each G-50A applies rotation control to each group inside the block.
● When the fan/thermostat OFF control is selected, Free Plan models and A-control
Slim models are provided with the thermostat OFF (capacity saving control)
command, while K-control models with the fan mode switching.
As the mode display of the local remote controller does not change, energy saving
control can be performed without the perception of occupants.
● Setting of the energy saving ineffective temperature difference allows not applying the
level 0 control to the block with the temperature difference between inlet and set
temperature exceeding the set value.
● Operation control from Web browser or TG-2000A provides the screen display of [ON]
for 1 minute maximum but not allowing to run the air conditioner.
(2) Energy saving control for outdoor unit
For the energy saving control for the outdoor unit, select a time portion to be applied to the energy
saving control items listed in Table 9-2 from 0/3/6/9/15/30 minutes. By dividing those items by the group
numbers in the operation block evenly, the energy saving control is applied.1
The rotated operation is applied to the outdoor units starting from that with smaller address.
[In case of the energy saving control of 3 outdoor units for 15 minutes for example]
0
3
6
9
12
15
18
21
24
27
30 (min)
1 Times of rotation:
For the control of 15 minutes, 3 minutes control is applied for 5 times (= 15 min./3 min.).
2 Cycles of rotation:
From the times of rotation in 1, the cycle of rotation for 30 minutes is to be 6 minutes (= 30 min./5 times)
3 Intervals of rotation:
From the cycles of rotation in 2, the rotation interval of each group in a block counts for 2 minutes (= 6 min./3 groups).
Figure 9-4 Example of outdoor unit energy saving control
● The capacity saving control is a control to suppress the maximum value of the outdoor unit.
Therefore, no energy saving effect can be obtained under the setting to 80% if the operation is
conducted with the capacity below 80%.
Capacity
80%
Capacity value
No energy saving
effect
CAUTION
Energy saving effect
provided
Time
● In the case of the energy saving control, capacity saving control is applied to the outdoor unit
individually.
For this reason, be careful that the control will be applied to the indoor unit being not targeted if the
group setting is made by stepping over the refrigerant system.
● In the case of capacity saving control to the outdoor unit, control for a short time may not provide a
normal effect. Control for 30 or 15 minutes is recommended.
● For Multi S, set to “No control” so that the capacity saving control will not be applied to the outdoor
units.
(3) Required materials
Table 9-3 shows the materials required for energy saving control.
Table 9-3 Required materials
1
Name (Model name)
PC for centralized control
Maker
PC/AT convertible unit
Integrated software (PAC-TG2000A)
Centralized controller (G-50A)
Energy saving control license
Web monitor license
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Remarks
Confirmed operation of IBM, DELL, Hp Compaq.
For PC spec., refer to Table 6-4.
Use Ver.4.1 or later.
Use Ver.2.5 or later.
Requires for each G-50A.
Requires for each G-50A.
The control time may be overlapped depending on the group numbers in the block and control time.
65
9.2.2 Peak cut control
(1) Explanation of function
Connecting the watt-hour meter (PLC) allows conducting the energy saving control of Table 9-2 divided
into 5 levels (Level 0 ~ Level 4) by estimating the power consumption for 30 minutes.
Meantime, the control level is judged with an interval of 1 minute, and the control of higher level is
applied in accordance with the measured power consumption for the past 30 minutes and estimated
value.
[How to obtain the estimated value]
Estimated value (kW) = Power consumption in the past 5 minutes (kWh)
× 6 (Power consumption for 30 minutes) × 2 (kWh → kW <30 minutes> converted) ----- 1
In Figure 9-5 for example, it is assumed that the control at the energy saving level 1 is being conducted
in accordance with [Power consumption for the past 30 minutes].
In this occasion, the estimated value after 30 minutes is calculated from [Power consumption for the
past 5 minutes] by Equation 1, it reaches the region of energy saving level 2. In this case, the energy
saving control set at the energy saving control level 2 will be carried out.
By making the energy saving ineffective temperature difference effective, under the control of Level 0,
when the temperature difference between the set and inlet temperature is exceeding 3°C~9°C (able to
set in a unit of 1°C), It is possible not to allow conducting the energy saving control set at Level 0 in
consideration of comfort.
(The control set at Level 1 ~ Level 4 will be conducted regardless of the temperature difference.)
Level 2
Power consumption
for past 30 minutes
Power
consumption
for past 5 minutes
10kWh
1kWh
2kWh
Before
5 minutes
120kW
Level 1
Estimated power
consumption
after 30 minutes
Estimated mean
power consumption
for 30 minutes
Estimation of mean electric
power for 30 minutes
(demand value)
120kW
3kWh
30 minutes
Present
Figure 9-5 Level estimation
By setting the target demand value and [Stopping control for 30 minutes] of the energy saving control
item, the peak cut control can be practiced as an application of the level control above.
(2) Required materials
The materials required for the peak cut control are shown in Table 9-4.
Table 9-4 Required materials for peak cut control
66
Name (Model name)
PC for centralized control
Maker
PC/AT convertible unit
Integrated software (PAC-TG2000A)
Centralized controller (G-50A)
Peak cut control license
Web monitor license
PLC
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Pulse counting software
(PAC-YG11CDA, etc.)
Mitsubishi Electric
Remarks
Confirmed operation of IBM, DELL, Hp Compaq.
For PC spec., refer to Table 6-4.
Use Ver.4.1 or later.
Use Ver.2.5 or later.
Requires for each G-50A.
Requires for each G-50A.
Usable commonly with PLC for measuring instrument
charging.
For detail, refer to Table 8-4.
Use Ver.1.01 or later for peak cut control.
Selecting target
G-50A for setting
Select G-50A objective
for peak cut setting.
Batch setting for whole
building is possible.
Setting levels
Set the electric power to start
peak cut control. (Levels 1 ~ 4)
Selecting the setting
unit of indoor unit
Select indoor unit objective
for peak cut control or select
whole building collectively.
Setting control detail and time
Select the detail and time of indoor
unit peak cut control.
Setting energy saving ineffective
temperature difference
Set the detail and time of energy saving
ineffective temperature difference.
Setting the detail and time of control
Select the detail and time of outdoor
unit peak cut control at each level
Selecting the setting
unit of outdoor unit
Select outdoor unit objective
for peak cut control or select
whole building collectively.
Figure 9-6 TG-2000A peak cut control setting screen
CAUTION ● For Multi S, set to “No control” to prevent conducting the capacity saving control.
67
9.3 Energy Saving Control Status · History Monitor
9.3.1 Current energy saving control Status
You can confirm whether or not an air-conditioning group is under energy saving control. If energy saving
control is on, operation status icons shown below will be indicated on the display by the web browser or
integrated software.
Table 9-5 Energy saving control icons
Set temperature control or fan control is on.
* In case or a pre-scheduled operation or an interlocked unit connection, those icons will also be displayed.
Stopping control is on.
* In case or a pre-scheduled operation or an interlocked unit connection, those icons will also be displayed.
Notice
● When status is monitored, only the air conditioning group under energy saving control will
have icons displayed as shown in the Table 9-5.
● Power saving control of outdoor units will not make the energy saving symbol displayed
with air conditioning group icon, since it is unknown whether the outdoor unit has energy
saving operation at that point in time.
● During level 0 control, if a difference between the target temperature and air intake
temperature is ineffective for energy saving, energy saving will not be executed and there
will not be an energy saving control icon on the display.
9.3.2 Peak cut status history
From the menu bar in the TG-2000A control screen, select [tool]-[peak cut data] and you will be able to
output peak cut status history daily report and monthly report as a CSV file.1
The daily and monthly report files will automatically be stored in the automatic trend output folder2 for two
years.
CAUTION
● Daily and monthly reports
<Automatic output file>
The automatic output file is automatically created daily (or monthly) as TG-2000A
gathers information from G-50A and PLC. Therefore it is not created if TG-2000A is
finished.
<Manual output file>
You can manually output each file from the TG-2000A tool bar. Monthly data will be
created from TG-2000A database while daily data for the day, the day before and two
days before will be collected from G-50A.
(The data earlier than that will be created from TG-2000A database.)
(1) Peak cut status history (daily report)
Control level at every one minute and power consumption data by the unit of 30 minutes can be output
as a CSV file. The daily report can be selected and output up to 31 days (Maximum) retroactively.
(2) Peak cut status history (monthly report)
Power consumption data per day can be output as a CSV file.
The monthly report can be selected and output for the past 62 days (Maximum) retroactively.
1
2
When TG-2000A is stopped or unable to communicate, data may not be obtained due to the lack of monitor collection.
The automatic trend output folder can be set freely. For detail, refer to “14.2 Trend data output.”
68
(3) Creation of daily report/monthly report trend graphs
You can turn a CSV file (trend graph) into a graph using “Trend graph Idisplay tool” that comes with
TG-2000A. Refer to the Item 14.2 for details.
Figure 9-7 Peak cut status history daily report example
69
9.4 Energy Saving Control System Design Flow
Following is the outline of the system design flow for energy saving control execution.
(1) Determine the license type.
If you try to have a peak cut control by calculating power consumption from a watt-hour meter, you will
need to have a separate PLC (with a pulse count software installed). A peak cut control license will be
required for this.
If you do not implement a level control, you don’t need to arrange a PLC, or to decide a demand level. In
this case, you will need to have an energy saving control license.
If you do a peak cut control, you will set the Watt-hour meter in increments of G-50A. The control level
will be set at 5 steps. As a concept, you will consider the target contract demand based on the current
contract demand, and determine the value for the final level (Level 4). Then, you determine the figure at
each level leading up to Level 4.
[Example] Level 0:
~ 200 kW
Level 1: 200kW
~ 500 kW
Level 2: 500kW
~ 800 kW
Level 3: 800kW
~ 1000 kW
Level 4: 1000kW
~
(2) Select the energy saving control method.
As an energy saving control method, you choose either [energy saving control using indoor units] or
[energy saving control using outdoor units], or both.
[Example] Use both indoor unit energy saving control and outdoor unit energy saving control.
(3) Confirm the energy saving area.
The energy saving control of indoor units is done through a rotation control of the group operation
based on the unit of operation block. The energy saving control of outdoor units is done by rotating the
operation of the outdoor unit in numerical order of the address. The control order is sequenced from a
smaller number given to the group. First, you confirm the order of control within the operation block.
[Example] In the figure shown on the right, Group 1 to Group 6
belong to the same operation block (Office A). In this
Outdoor
case, Group 1 and Group 2 on the window side will be
controlled consecutively. Compared with the Group 5
and Group 6 side of the room, the temperature in the
window side goes up temporarily (in summer).
Group 1
Group 2
By rearranging the groups you can provide energy
saving control without too much sacrificing comfort.
In this case, Group 4 should become Group 2, Group
Group 3
Group 4
5 should become Group 3, Group 2 should become
Group 4, and Group 3 should become Group 5. By
doing so, you can avoid two window side units having
energy saving control at the same time and improve
Group 5
Group 6
the comfort level.
Office A
(4) Determine the control details.
Determine the energy saving control details for each operation block and outdoor unit. If you set both
indoor unit energy saving control and outdoor unit energy saving control within a particular level, both
controls will be multiplied.
[Example]
Level
Outdoor Unit 51
Office A
Level 4 1000
~
kW
None
– minutes
Stop
30 minutes
Level 3 800
~ 1000 kW
30 minutes Capacity saving 60%
Fan control
9 minutes
Level 2 500
~ 800 kW
30 minutes Capacity saving 70%
Fan control
6 minutes
30 minutes Capacity saving 90%
Fan control
3 minutes
Level 1 200
~ 500 kW
None
– minutes
3 minutes Temperature control
Level 0
~ 200 kW
70
10. Step 7: Selection of Measuring Instruments
(1) Measuring instruments
Use measuring instruments with recommended pulse signals shown in the Table 10-1 below.
We also recommend using a watt-hour meter shown in the Table 10-2 below.
Table 10-1 Recommended pulse specification
Description
Semi-conductor relay type
100 ~ 300ms (100ms or above)
Select a measuring instrument which outputs
non-voltage a-contact pulse per pulse output unit.
Model name
Output pulse type
Output pulse width
ON
100ms ~ 300ms
Watt-hour meter : 0.1kWh/pulse, 1kWh/pulse is recommended.
Water meter
: m3/pulse
Gas meter
: m3/pulse
* Except for the watt-hour meter, select the measuring
Calorimeter
: MJ/pulse
instrument type with the appropriate pulse unit.
Pulse unit
Table 10-2 Recommended watt-hour meter
Model name
Description
Mitsubishi Electric
Single-phase 2 wire system
Single-phase 3 wire system, three-phase 3 wire system
Up to 32 units of Watt-hour meter can be used per 1 unit of PLC.
Others
* (H) means it comes with a transformer (CT); (V) means it is semi-flush mounted with rear connection.
Maker
Model name
PLC DI board (QX40)
Three-phase
Outdoor unit power supply
Watt-hour meter
with a pulse
oscillator
Other systems
PLC (with a pulse count software)
TG-2000A
Single-phase
Indoor unit power supply
Water meter with a pulse oscillator
Gas meter with a pulse oscillator
Figure 10-1 Measuring instrument wiring diagram
CAUTION
● Make sure pulse unit is set in the measuring instruments. If not, consumption will
not be correctly measured, and charging functions and peak cut control will not
work correctly.
● Power and gas consumption is counted by pulse. We will take no responsibility for
measurement results since they depend on performance and accuracy of
measuring instruments.
71
(2) Power consumption PC direct reading system (RS-485WHM)
Please use the RS-485 watt-hour meter shown in Table 10-3.
Table 10-3 Model name of RS-485 watt-hour meter specified
Model name
Detail
Maker name
XXXXX
XXXXX
XXXXX
XXXXX
Model name
XXXXX
XXXXX
XXXXX
XXXXX
Remarks
XXXXX
XXXXX
XXXXX
XXXXX
<< Please enter the maker name, model name and remarks of RS-485 watt-hour meter described on WT03901X03.>>
PLC DI board (Q ´ 40)
3-phase
Outdoor unit power source
RS-485
Watt-hour
meter
Another system
RS-232C/RS-485 Converter
1-phase
Indoor unit power source
TG-2000A
Figure 10-2 Outline wiring of measuring instruments
CAUTION
72
● Make sure to set the pulse unit of watt-hour meters.
Otherwise, the consumption can not be measured correctly thus hindering the
normal charging function.
● The power consumption is taken as an accumulated integrating value, and the
performance and accuracy are depending on that of the watt-hour meter or CT.
Therefore, we are not liable in this regard.
11. Step 8: General Purpose Equipment Control
TG-2000A can control and monitor system equipment.
By using general-purpose control functions, you can control and monitor other manufacturer’s air
conditioning units, lighting fixtures and other system equipment as well as water level of a water or fire tank
with a flooding/low level alarm on the TG-2000A monitor screen.
System equipment is controlled by PLC. “General-purpose control software: PAC-YG21CDA” needs to be
installed in PLC. (For PAC-YG21CDA Ver.1 series, no licensing registration needed for G-50A.)
Lighting
Other systems
PLC (general purpose control
software installed)
Other manufacturer’s packaged
air-conditioning units
TG-2000A
Other manufacturer’s fan coil units
Chiller/heat source
machine
General purpose system equipment
Figure 11-1 General purpose control system composition
CAUTION
● Operation and monitoring of general purpose system equipment cannot be
controlled if the PLC or other equipment fails. Take this into consideration, and
make sure you provide a circuit for a switch for an emergency stop/start. Do not
use it for monitoring the system affecting human life. In case you do, incorporate
an alternative safety mechanism.
73
11.1 Outline
PLC will be used to control general-purpose equipment, along with a DI board (DC input unit) and a DO
board (transistor output unit).
One icon will be shown on the TG-2000A monitor screen to represent one system equipment, and you can
operate (one shot pulse output), monitor the status, and monitor for error (level input).
Therefore, you will be using two terminals on DO board and two terminals on DI board for one system
equipment.
For status monitoring, you can choose the name of the status, and for error status, you can choose the
name of the error and its icon color.
One shot pulse
output signal
PLC DO board (QY40P)
Run
1P
Stop
1P
You can control and
monitor one system
equipment with one icon.
Control
System
equipment 1
PLC DI board (QX40)
Operation status
1P
Error status
1P
Monitoring
Level input signal
Figure 11-2 General-purpose control outline
11.2 System Design Method
System design method for general-purpose control is outlined below.
11.2.1 Listing up of general-purpose equipment
General-purpose equipment needs to be listed up.
Control and monitoring of general-purpose equipment will be done through contact control using PLC.
Therefore, the equipment to be controlled should have the following signal specifications. TG-2000A can
only operate or only monitor the equipment, in that case, unused terminals should remain unconnected.
Table 11-1 General-purpose control signal specifications
Signal specifications
Operation
Non-voltage a-contact
One shot pulse output
Contact specifications
approx. 1 second
Terminal assignment/
equipment1
2 terminals
Contact ON
Signal 1 (operate)
Contact OFF
approx. 1 second
Contact ON
Signal 2 (stop)
Contact OFF
Stop
Monitoring
Non-voltage level input
Run
Stop
2 terminals
Contact ON
Signal 1
Contact OFF
Stop
Run
Stop
Contact ON
Signal 2
Contact OFF
Normal Error/trouble Normal
1
Number of terminals assigned to one system equipment
74
11.2.2 Determine the control items.
After you determine the equipment to be connected, define the control items for each equipment.
For instance, whether you want to operate the instrument (ON and OFF) and monitor it, including error
monitoring, or just watch for failure (malfunction). For ON and OFF, status output signal from the instrument
changing the icon status (color) is the basic1 mechanism.
Application example 1: ON/OFF operation, status monitoring, and error monitoring
(Basic example)
PLC DO board (QY40P)
ON
1P
OFF
1P
If the status is OFF, operate
and send the ON signal from
the system instrument. The
status will change to ON.
Operation
System
instrument
PLC DI board (QX40)
The error signal from the
system instrument will turn
this to the error status display.
Operation status
1P
Error status
1P
Monitoring
*When the system instrument does not provide the output of operation status, connect to the input of operation status by installing a selfholding circuit.
Application example 3: Error monitoring only
PLC DO board (QY40P)
ON/OFF output signal terminal
will have no connection.
Not in use
Not in use
System
instrument
Status signal input terminal
will have no connection.
PLC DI board (QX40)
Error signal from instrument
will change it to error status
display.
1
Not in use
Error status
1P
Monitoring
We recommend that you connect the status signal from the instrument.
If the status signal is not connected (judgment only from the operation), there might be a discrepancy between the instrument operation status
and the icons on TG-2000A display.
75
11.2.3 PLC assignment
After you determine the control items of the connected instrument, assign PLC terminals.
General-purpose control PLC needs to have one DI board and one DO board mounted regardless of the
control items. (There are certain restrictions about the mounting location and others. Refer to 12.3 for
details.)
Table 11-3 shows the general-purpose control PLC terminal assignment. Since each terminal in PLC has a
pre-determined function, keep the terminal un-connected (open) where the signal is not to be used.
Table 11-2 General-purpose control PLC restrictions
Item
Number of general-purpose instrument that
can be connected to one PLC
Number of general-purpose control PLC that
can be connected to TG-2000A
IP address setting range for general-purpose
control PLC
Content
Remarks
8 units regardless of the control items
Up to 8 units
20 units
Number of general-purpose instrument:
160
Recommended setting range is shown.
192.168.1.171 ~ 192.168.1.190
Table 11-3 General-purpose control PLC terminal assignment
Control instrument
number
General-purpose
instrument 1
General-purpose
instrument 2
General-purpose
instrument 3
General-purpose
instrument 4
General-purpose
instrument 5
General-purpose
instrument 6
General-purpose
instrument 7
General-purpose
instrument 8
Terminal
board number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DI board
DO board
General-purpose instrument 1 ON signal
General-purpose instrument 1 OFF signal
General-purpose instrument 2 ON signal
General-purpose instrument 2 OFF signal
General-purpose instrument 3 ON signal
General-purpose instrument 3 OFF signal
General-purpose instrument 4 ON signal
General-purpose instrument 4 OFF signal
General-purpose instrument 5 ON signal
General-purpose instrument 5 OFF signal
General-purpose instrument 6 ON signal
General-purpose instrument 6 OFF signal
General-purpose instrument 7 ON signal
General-purpose instrument 7 OFF signal
General-purpose instrument 8 ON signal
General-purpose instrument 8 OFF signal
General-purpose instrument 1 operation status signal
General-purpose instrument 1 error status signal
General-purpose instrument 2 operation status signal
General-purpose instrument 2 error status signal
General-purpose instrument 3 operation status signal
General-purpose instrument 3 error status signal
General-purpose instrument 4 operation status signal
General-purpose instrument 4 error status signal
General-purpose instrument 5 operation status signal
General-purpose instrument 5 error status signal
General-purpose instrument 6 operation status signal
General-purpose instrument 6 error status signal
General-purpose instrument 7 operation status signal
General-purpose instrument 7 error status signal
General-purpose instrument 8 operation status signal
General-purpose instrument 8 error status signal
11.2.4 Required materials
Members required for general-purpose control are listed in the Table 9-3.
Table 11-4 General-purpose control required items
76
Materials (model names)
PC for centralized control
Maker
PC/AT compatible
Integrated software (PAC-TG2000A)
Web monitor license
PLC
General-purpose control software
(PAC-YG21CDA)
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Mitsubishi Electric
Remarks
Verified the performance of IBM, DELL, and Hp Compaq.
Refer to Table 6-4 for the PC specification.
Use Ver. 4.1 or later version.
Requires for each G-50A.
Make sure DI board and DO board are mounted.
This software should be installed in PLC.
The software is different depending on IP address. IP
address needs to be designated. (Standard: 192.168.1.171)
11.2.5 Setting of TG-2000A
After the assignment of terminals, TG2000A should be configured. For each general-purpose instrument,
what to be controlled and monitored should be set up in TG-2000A.
Selection of PLC No.
Select the PLC.
General-purpose
instrument button
Settings of the generalpurpose instrument can
be made. Menu includes
change/copy/paste.
Selection button
Select whether there
is a general-purpose
instrument or not.
General-purpose
instrument address
General-purpose instrument
address is indicated.
Instrument name setting
Set up the instrument name.
(short name, long name)
Number of connected PLC’s
This shows how many
PLC’s are connected.
Number of general-purpose instrument
This shows how many general-purpose
units are connected.
Function display
This shows the functions of the configured
general-purpose instrument.
Operation setting
Operation/settings of the generalpurpose instrument will be made.
Operation display setting
Set the operation display of the
general-purpose instrument.
• Whether there is a
display or not
• Selection of update
* Display text is changeable.
Error/alarm status
display setting
Whether to have an
error display for the
general-purpose
instrument will be
set and display text
will be selected.
This one screen uses two each of DI
and DO board terminals on PLC.
Figure 11-3 TG-2000A general-purpose instrument registration screen
Notice
● General-purpose instrument name can be maximum 20 characters. (Short name is 8
characters.)
● ON, OFF, error displays are maximum 8 letters.
● [ ’ ] (single quotation mark) cannot be used in names and display texts.
77
12. Step 9: Determining Number of PLC Units
This chapter talks about how to determine the number of sequencers (PLC).
12.1 PLC Standard Configuration
G-50A uses PLC (Programmable Logic controller) to provide measuring instrument charging function
(pulse count system), general-purpose control function and other functions. The PLC to be used is
“MELSEC-Q series” by Mitsubishi Electric, and Figure 12-1 shows the standard configuration of G-50A
system.
In the standard configuration, “power supply unit”, “CPU Unit”, “Ethernet Unit” are mounted in the slots
above the base unit.
Two open slots should be mounted with boards (DC input unit and transistor output unit) necessary to
realize various functions. Model names of MELSEC-Q series products are listed in the Table 12-1 below.
Power supply unit
CPU unit
Ethernet Unit
Open port 1
Open port 2
Base unit
Figure 12-1 PLC standard composition
Table 12-1 MELSEC-Q series name and model name
Name
Sequencer
MELSEC-Q series
78
Type of unit
CPU unit
Model names (Makers)
Q02CPU (Mitsubishi Electric)
Power supply unit
Q61P-A1 (Mitsubishi Electric)
Ethernet unit
Base unit
DC input unit
(extension)
Transistor output unit
(extension)
Q71E71-100 (Mitsubishi Electric)
Q33B (Mitsubishi Electric)
QX40 (Mitsubishi Electric)
QY40P (Mitsubishi Electric)
Detail
Mandatory
Software needed to perform various functions
(ATA card should be inserted.)
Mandatory
AC100V only (Select Q61P-A2 for a single-phase
200V application.)
Mandatory
Mandatory
One unit can accommodate 16 contact input.
This is non-voltage input.
One unit can accommodate 16 contact input.
This is non-voltage output.
12.2 PLC’s for Pulse Count Function
12.2.1 Restriction on the number of units
To carry out measuring instrument charging function or energy saving peak cut control, you will need to
have the standard configuration explained in the previous chapter plus a DC input unit.
One DC input unit can support 16 contacts, so you can connect up to 16 measuring instruments. Since
one PLC has two open ports, you can connect 32 watt-hour meters to 2 DC input units. In case 33 or more
watt-hour meters have to be connected, add one more PLC unit.
Up to 5 PLC units can
be connected to
TG-2000A.
(Total number of watthour meters is 160 at
maximum.)
PLC5
Up to 16 watt-hour meters can
be connected to 1 DC input unit.
PLC2
2 DC input units can be connected
to 1 PLC unit. (Total number of watthour meters is 32 at maximum.)
PLC1
PLC standard composition
TG-2000A
Figure 12-2 Restriction on the number of PLC units for the electric power apportioned charge function
12.2.2 Terminal connection diagram
Connection to DC input unit (QX40) terminals is shown in the Figure 12-3.
Since DC input unit is non-voltage input, you need to prepare an external DC24V power supply (DC12V is
cannot be used).
Measuring instrument
with a pulse oscillator
0
Measuring instrument
with a pulse oscillator
1
Measuring instrument
with a pulse oscillator
...
2
F
COM
NC
QX40
terminal
board
DC24V power supply
Measuring
instrument
wiring
Figure 12-3 QX40 terminal connection diagram
79
12.3 PLC for General-purpose Control Function
12.3.1 Restriction on the number of units
When performing general-purpose functions, you will need the standard composition explained in 12.1, DC
input unit, and transistor output unit.
DC input unit and transistor output unit each supports 16 contacts. One system instrument uses two
contacts, so, up to 8 general-purpose units can be connected. When you connect 9 or more generalpurpose instrument, you will need to add one more PLC unit.
PLC20
Up to 20 PLC units can
be connected to
TG-2000A.
(Maximum total number
of general-purpose
instrument is 160.)
DC input unit
Transistor output unit
One pair of DC input unit and transistor
output unit can accommodate up to 8
general-purpose instrument.
PLC2
PLC1
PLC standard composition
TG-2000A
Figure 12-4 Restriction on the number of PLC units for multi-purpose control functions
CAUTION
80
● If mounting positions of the DC input unit and transistor output unit are incorrect,
they do not perform properly. Please mount the units referring to the diagram
above.
12.3.2 Terminal connection diagram
Figure 12-5 shows the connection to terminal boards in DC input unit (QX40) and transistor output unit
(QY40P). Since DC input unit and transistor output are non-voltage, you have to provide a DC24V power
supply (DC12V is unacceptable) and a DC24V or DC12V power supply for transistor output unit separately.
If the facility instrument side has a level input, you have to prepare a pulse-level conversion circuit
separately, as shown in the figure 12-6.
X1
0
X1
X2
1
X2
Operation status
output signal
[contact specification] (X1, X2)
Use a micro current contact for
4mA or smaller contact current.
Malfunction status
output signal
2
[Load specification] (Xa, Xb)
Maximum current to be fed to
output terminal is 100mA.
If the current exceeds that limit,
connect a relay.
...
Power
supply
F
Xa ON input signal
COM
Xb OFF input signal
DC24V
power supply
NC
QX40 terminal board
Power
supply
0
Xa
1
Xb
Facility Instrument
A connection for internal power supply is needed.
If this is unconnected, QY40P’s LED will be on,
but no signal will be output.
...
2
F
Internal power
supply
COM
QY40P terminal board
DC24V
power supply
Power supply polarity here is different from QX40.
Keep this in mind when connecting.
Local wiring
Figure 12-5 General-purpose control terminal connection diagram
X1 Control signal output
Output 1: ON
X1
X2
X1
X2
Output 2: OFF
Load
Internal power supply: 17
COM: 18
DC12V/24V
PLC DO board
Recommended relay
X1: a-contact
X2: b-contact
* Both X1 and X2 are MY2N-D: OMRON
equivalent products
Local wiring
Performance sequence
1s
Output 1: ON
Output 2: OFF
Control output signal
ON
Load drive power supply
OFF
Operation explanation
ON pulse signal will generate ON level
signal for control output signal, OFF pulse
signal will turn off the control output signal.
* The circuit example here a-contact output
specification.
Figure 12-6 Pulse-level conversion circuit example
CAUTION ● Provide a switch circuit for emergency ON and OFF in case of a PLC malfunction.
81
12.4 PLC Software
In order to use various functions based on PLC, integrated software is necessary. Some functions require
license number registration in the G-50A main body.
PLC needs to have software to implement various functions.
Table 12-2 Items needed for each function
Integrated
software
G-50A license
registration
PLC DI board
Electric power apportioning function
(Power consumption manual input)
Electric power apportioning function
(Pulse count method)
Electric power apportioning function
(RS-232C WHM method)
Measuring instrument charging function
(Pulse count method)
Energy saving control function
Demand peak cut function
General-purpose instrument control
function
*1 This will be different depending on the IP address of PLC. Refer to Table 8-4 for details.
82
PLC DO
board
PLC software
PAC-YG11CDA*1
PAC-YG11CDA*1
PAC-YG11CDA*1
PAC-YG21CDA
12.5 External View of Sequencer
External dimension of each PLC unit is shown below.
Base unit
98
7
7.5
44.1
80
4-mounting screw
(M4 × 14)
15.5
169
189
CPU unit
Power supply unit
D02CPU
061P-A1
POWER
MODC
RUN
ERR.
USER
BAT.
BOOT
98.15
98.00
PULL
PULL
RS-232
89.30
27.40
90.50
Ethernet unit
55.40
DC input unit
QX40
0 1 2 3 4 5 6 7
8 9 A B C D E F
QJ71E71-100
0
1
2
3
4
98.00
98.00
5
6
7
8
9
A
B
C
D
E
QJ71E71-100
90.50
27.40
F
90.50
27.40
* Transistor output unit has the same dimensions.
83
12.6 PLC Wiring Diagram
A wiring example around PLC is shown in Figure 12-7. In the figure below are shown also necessary
components in order to secure reliability (for reference). Depending on the setting environment, however,
unnecessary components may be included. In this case, consult with a contractor to decide whether or not
they are necessary.
Power L
source N
AC100V
Circuit
breaker
for main Arrestor
power
for main
source power
source
Circuit Insulating
breaker transformer
for PLC
Power source
unit (Q61P-A1)
G-50A
CPU unit
(QO2CPU)
Ethernet unit
(QJ71E71-100)
10BASE-T
PC for
centralized
control
DC input unit
(QX40)
L
N
Circuit
breaker
for DC
power
source
24V
GND
E
DC24V
Power
source
Arrestor
Terminal for
pulse input
Voltmeter
with pulse
oscillator
Terminal for
pulse input
Voltmeter
with pulse
oscillator
Terminal for
pulse input
Voltmeter
with pulse
oscillator
Terminal for
pulse input
Voltmeter
with pulse
oscillator
Arrestor
Arrestor
Arrestor
CPEVS f0.9-1P
or
CVVS1.25mm2
Storage panel
for PLC
Figure 12-7 Wiring example around PLC
84
Storage panel
for voltmeter
13. Step 10: Determination of Address for Air Conditioning
Instrument and PC for Control
13.1 Address Setting for Air Conditioning Instrument
Address setting range for various types of air conditioning instrument is shown in the table below.
Table 13-1 Address setting range for M-NET models
Address range
000
001~050
101~150
Models
G-50A
Indoor unit, OA Processing Unit, Lossnay, MNET interface
Outdoor unit, BC controller, constant-capacity
unit, heat storage tank unit
Master remote control (M-NET remote control)
151~200
Slave remote control (M-NET remote control)
201~250
System remote control (PAC-SF44SRA)
ON/OFF remote control (PAC-YT40ANRA)
Group remote control (PAC-SC30GRA) and others
051~100
Remarks
Basically, the address range of G-50A is fixed to “000” at the factory.
M-NET remote control includes ME remote control, compact
remote control, and Lossnay remote control to connect to M-NET
transmission line.
When MA remote control is used, address setting is not
necessary.
G-50A can also be used within the address range shown at the
left.
Table 13-2 Address setting range for K-control model
Address range
001~050
201~250
Models
Indoor unit, remote controller (group number)
K-transmission converter (PAC-SC25KAA)
Remarks
Minimum address for 200+K-control model indoor unit
Table 13-3 Address setting range for A-control model
Address range
001~050
Model
Outdoor unit (adapter for M-NET connection)
Remarks
Address for refrigerant system is to be set up separately.
13.2 Setting of LAN System
The components shown in Table 13-4 are required for LAN connection
Table 13-4 Components required for LAN
Names of components
Hub for 10BASE-T (for 5 ports)
Hub for 10BASE-T (for 8 ports)
Hub for 10BASE-T/100BASE-Tx
(for 5 ports)
Hub for 10BASE-T/100BATSE-Tx
(for 8 ports)
LAN straight cable (twist pair cable)
for 10BASE-T
LAN straight cable (twist pair cable)
for 100BASE-Tx
Remarks
1 port among 5 ports is available for cascade changeover.
1 port among 8 ports is available for cascade changeover.
The allowable maximum wiring length is 100m in connection. Also, twist pair cable is subject to a
standard for category sorting stipulated by EIA/TIA. Twist pair cable in accordance with category
3 and 5 is used for Ethernet, but one in accordance with category 5 is recommended.
Over-the-counter LAN cable is in accordance with category 5 and either 10BASE-T or
100BASE-Tx is available.
This cable is used for connection to optical cable, of which adaptable category is 5 and of which
form is the same as for 10BASE-Tx.
85
13.2.1 Setting method for connecting G-50A to exclusive LAN
This is a setting method to establish G-50A system with exclusive LAN wiring
(1) Setting of IP address
In the case that LAN wiring is newly provided for G-50A system, allocate the IP address of G-50A from
[192.168.1.1] in sequence. For example, assign [192.168.1.1] for the first G-50A, [192.168.1.2] for the
second G-50A, and so and so in sequence. In addition, set a PC for monitoring on the Web to monitor
G-50A and set the initial setting tool and the like also to the network address in the same system.
In case of G-50A exclusive LAN, it is recommended that the IP address of each component is set within
the following IP address range.
As the default value of IP address for G-50A is [192.168.1.1], the address from the second G-50A must
be changed.
Table 13-5 Recommended IP address setting range
IP address setting range
[192.168.1.001] ~ [192.168.1.040]
[192.168.1.101] ~ [192.168.1.149]
[192.168.1.150]
[192.168.1.151] ~ [192.168.1.200]
[192.168.1.151] ~ [192.168.1.155] for pulse count
[192.168.1.171] ~ [192.168.1.190] for general-purpose controller
[192.168.1.201]
Models
G-50A main body
PC for monitoring
PC for centralized control (TG-2000A)
PLC
PC for initial setting tool
(2) Setting of subnet mask
Set [255.255.255.0] (default value) typically.
HUB
10BASE-T LAN straight cable
1st G-50A
2nd G-50A
IP address: 192.168.1.1
Sub-net mask: 255.255.255.0
IP address: 192.168.1.1
Sub-net mask: 255.255.255.0
Integrated software: TG2000A
IP address: 192.168.1.101
Sub-net mask: 255.255.255.0
Initial setting tool
IP address: 192.168.1.201
Sub-net mask: 255.255.255.0
* Some models among hubs are provided with exclusive port for connecting between hubs.
For G-50A and PC for monitoring, connect to the regular port.
Figure 13-1 Setting example for exclusive LAN system
86
13.2.2 Setting method for connecting G-50A to existing LAN
(1) Case of central monitoring by Web browser
In the case of installing G-50A system in the existing LAN wiring, consult your network administrator
who manages the LAN system to set IP address, subnet mask, and gateway address.
Meantime, gateway address can be set only with the initial setting tool.
Backbone LAN
Gateway
Gateway
IP: 10.130.1.250
IP: 10.130.2.250
Obtained from LAN
administrator
G-50A
IP address: 10.130.1.1
Sub-net mask: 255.255.255.0
Gateway: 10.130.1.250
Obtained from LAN
administrator
PC for Web monitoring
PC for Web monitoring
IP address: 10.130.1.101
Sub-net mask: 255.255.255.0
Gateway: 10.130.1.250
IP address: 10.130.2.51
Sub-net mask: 255.255.255.0
Gateway: 10.130.2.250
Figure 13-2 Setting example 1 of existing LAN system
(2) Case of centralized monitoring by TG-2000A
In the case of using the peak-cut function and charging function by means of TG-2000A, the separation
of system by a router is recommended.
This is a means to secure the reliability of each component, as various signals are being transmitted on
a LAN system in the environment that many PCs for clerical work are installed on the existing LAN
system.
Communications with G-50A and PLC are possible by making a router convert the address by assigning
an IP address corresponding to the IP address form on the backbone LAN also to G-50A and PLC to
access to them by the use of the address.
G-50A installed in the downstream of a router is required to register the address of the router as a
gateway address, but PLC-related devices are not required to.
Gateway
Obtained from
LAN administrator
Obtained from
LAN administrator
IP: 10.130.1.254
Backbone LAN
IP address: 10.130.2.202
IP address: 10.130.2.203
Router
Gateway address for default: 192.168.1.254
PC TG-2000
PC for clerical work
IP address: 10.130.2.201
Sub-net mask: 255.255.255.0
Gateway: 10.130.2.254
G-50A
PLC
IP address: 192.168.1.1
Sub-net mask: 255.255.255.0
Gateway: 10.130.1.250
IP address: 192.168.1.151
Sub-net mask: No setting
Gateway: No setting
Figure 13-3 Setting example 2 of existing LAN system
Table 13-6 Necessary component in case of incorporating existing LAN
Name of component
Router
Maker for reference: Model name
MELCO: BLR3-TX4
Remarks
Model name in the left is recommended.
87
13.3 Setting for Remote Monitoring
The use of a modem and dial-up router allows monitoring and control from remote locations. The
components shown in Table 13-7 are necessary for remote monitoring.
In addition, when using the dial-up router shown in Table 13-7, the lines available for connection from
remote locations are assigned according to the telephone circuit class in the area where G-50A is installed.
Select the line suitable for the remote place, referring to Table 13-8.
It is possible to monitor the operational status of air-conditioners
in
branch to control them from remote locations.
Dialup
router
G-50A
Remote
location
PC for centralized control
Public phone circuit
Local
site
head office
PC with modem
branch
Figure 13-4 Remote monitoring system
Table 13-7 Necessary components for remote monitoring
Names of components
Hub for 10BASE-T
10BASE-T LAN straight cable
(twist pair cable)
Dialup router
Data/Fax modem card
Remarks
Refer to Table 13-4.
This component is necessary, when the number of G-50A and that of a PC to be connected is over the
number of dialup-router-built-in hub ports and when wiring distance is expanded.
Refer to Table 13-4.
ISDN line is available.
In case of using analog line and PHS line, connect a PC card shown below to dialup router.
This is necessary in case of using analog line.
Table 13-8 List of corresponding lines
Line at site
Analog line1
ISDN line
PHS line
Notice
1
2
Analog line
Line in remote location
ISDN line
PHS
2
● Since the transmission speed of analog line is slow, the use of ISDN line or PHS line is
recommended.
● ADSL system is of analog originally. In ADSL system, however, data are transmitted,
separated for data communications and for telephone communications by the use of a
device called splitter to separate data side from telephone side.
An ADSL modem is connected to the data side of ADSL. But telephone from outside is
not connected with the modem, because dialup connection is not possible with the
modem.
Connection to telephone from outside in ADSL system is now under consideration.
In order to use analog line, fit up the router with a modem. (Refer to Table 13-7 for recommended modem card)
In order to accept data to arrive on analog line in remote locations on ISDN line at site, fit up the router with a modem card. (Refer to Table 137 for recommended modem card)
88
(1) Setting of dialup router
Set the dialup router so as to connect received call (data communication) via public telephone line to
the LAN side. And then, set an IP address to be assigned to the dialup router and PC in remote
locations.
The IP address of the dialup router is recommended to be [192.168.1.254] and the IP address of a PC
to be assigned to the telephone line in remote locations is recommended to be [192.168.1.211].
Also, the IP address of the PC to be assigned to LAN must be set to [192.168.1.*] so as not to be the
same IP address as used in the system at site.1
(2) Network setting of G-50A
Set the IP address, subnet mask, and gateway address of G-50A by means of the initial setting tool2. As
for gateway address, set the IP address of the dialup router.
Public telephone circuit
Modem
Dialup router
IP address: 192.168.1.254
Modem, cellular
phone, etc.
IP address: 192.168.1.211
PC for monitoring or PC for air
conditioning control
(Integrated software TG2000A)
G-50A
PC for monitoring on the Web
IP address: 192.168.1.1
Sub-net mask: 255.255.255.0
Gateway: 192.168.1.254
IP address: 192.168.1.101
Sub-net mask: 255.255.255.0
Gateway: No setting
As the IP address of telephone line is [192.168.1.211],
set the IP address of PC to [192.168.1.211] so as to
avoid competing against each other.
Example: 192.168.2.1
* The IP address of dialup router is recommended to be set to [192.168.1.254].
For setting method for IP address, refer to Instruction Manual for Dialup Router.
* In case of using a dialup router without modem function, a modem (for analog and for ISDN) is required
to be connected between the dialup router and public switched phone network.
Figure 13-5 Setting example of remote monitoring system
1
2
In case of setting to the same system, data communications are not available by way of the dialup line, because telecommunications data are
input from the LAN port of the PC.
A gateway address can not be set only from the initial setting tool. (Other addresses can be set from G-50A.)
89
13.4 Setting of Abnormal Mail Transmission System
As an abnormal mail is transmitted by E-mail, it is necessary to contract with your internet service provider.
The abnormal mail transmission system is available by setting information such as the mail address and ID
for connecting to the Internet, which are obtained from the provider, to G-50A and a dialup router.
The components shown in Table 13-9 are necessary to use the function of abnormal mail transmission.
In addition, the initial setting of the function can be set only from the initial setting tool.
Name of object: Mitsubishi
Electric (000001)
Date and time of origination:
July 25, 2002 05:41:41
Place of generation of
mail: 059
Abnormal mail code: 1291
State: Generated
..
i! .
Pi! P
Dialup
router
G-50A
Failure
PC for centralized control
Public telephone circuit
Local
site
Internet
provider
branch
Figure 13-6 Chart of abnormal mail transmission system
Table 13-9 Necessary components for abnormal mail transmission system
Names of components
Hub for 10BASE-T
10BASE-T LAN straight cable
(twist pair cable)
Dialup router
Data/Fax modem card
Abnormal mail transmission
license
90
Remarks
Refer to Table 13-4.
This component is necessary, when the number of G-50A and that of PC to be connected are over the
number of dialup-router-built-in hub ports, and when wiring distance is expanded.
Refer to Table 13-4.
This is required to connect the mail server of an internet provider.
ISDN line is available. In case of using analog line and PHS line, connect a piece of PC card below to
the dialup router.
This is necessary in case of using analog line.
Requires for each G-50A.
13.4.1 Preparations before performing abnormal mail transmission
(1) Making a contract with an Internet provider to transmit mails at the side of a customer
Contact with an Internet provider.
(Except for the case that a private LAN system in an own company’s building and the like is provided with a mail server.)
After the contract, a provider contract document specified an access point, user ID, authorized pass
word, etc. is sent to the customer.
This contract document is necessary for the setting of G-50A and dialup router.
(2) Obtaining information on IP address for a mail server
The IP address of a mail server may be described in the provider contract document, but it seems that most of providers don’t
open any IP address. In such a case, obtain information on the IP address of the mail server in the following procedures.
Connect to the access point by using the function of dialup of a PC for monitoring to establish an
environment where the Internet is available.
Then, execute MS-DOS Prompt (Command Prompt in Windows 2000/XP) in the state of provider being connected.
And then, input [Name of Mail Server (name of SMTP server) for PING transmission1] in the MS-DOS
Prompt to execute, and information on the IP address of the mail server is available.
(3) Abnormal mail transmission license registration
To use abnormal mail transmission, it requires license registration. Please refer to section 2,3 for function licence.
13.4.2 Setting to perform abnormal mail transmission
(1) Setting of dialup router
Set the telephone number of provider’s access point, ID for connection, and pass ward obtained at the
time of contract with a provider to the dialup router.
(2) Network setting of G-50A
Set the IP address, subnet mask, and gateway address of G-50A by means of the initial setting tool. Set
the IP address of a dialup router to gateway address.
(3) Mail setting of G-50A
Set the IP addresses of a mail address and mail server obtained from the provider, and abnormal mail
receiver by means of the initial setting tool.
(4) License registration
Register abnormal mail transmission function from Web browser.
Public telephone circuit
Mail sending
Internet
provider
Modem
Dialup router
G-50A
IP address: 192.168.1.1
Sub-net mask: 255.255.255.0
Gateway: 192.168.1.254
Public telephone circuit, etc.
Mail sending
Modem,
etc.
IP: 192.168.1.254
PC for monitoring on the Web
IP address: 192.168.1.101
Sub-net mask: 255.25.255.0
Gateway: No setting
PC, cellular phone, PHS,
and the like with which mail
browsing are available
* The IP address of dialup router is recommended to be set to [192.168.1.254].
For setting method for IP address, refer to Instruction Manual for Dialup Router.
* In case of using a dialup router without modem function, a modem (for analog and for ISDN) is required to be connected
between the dialup router and public switched phone network.
Figure 13-7 Setting example of abnormal mail transmission system
1
The name of a mail server for transmission is a name of the mail server to transmit mails. This is notified from a provider at the time of a
contract for mailing.
91
13.5 System Using Optical Cable for LAN
As stated in item 0, the LAN wiring length in G-50A system can be expanded up to 500m by connecting a
hub in the form of cascade connection. However, in the system in which the wiring length requires 500m or
more on the system configuration, Optical cable if used can be extended up to 500m or more.
10BASE-T or 100BASE-Tx
10BASE-T
G-50A
10BASE-T
PC for centralized
control
Switching hub
PLC
100BASE-Tx
Optical media
converter (Type A)
Optical media
converter (Type B)
Optical cable for LAN
100BASE-Tx
Maximum length: 15km
Switching hub
10BASE-T
G-50A
Figure 13-8 Chart of LAN system using optical cable
Table 13-10 Necessary components for optical cable system
Names of components
Switching hub
Optical media converter (Type A)
Optical media converter (Type B)
LAN cable (twist pair, category 5)
Optical cable for LAN
Remarks
Be sure to use type A and type B in pairs.
↑
Be sure to use the LAN cable in accordance with category 5 corresponding to 100BASE-Tx to
connect to an optical media converter.
Applicable cable: 9/125µm single mode optical cable
Allowable transmission distance: 15km
Type of connector: SC connector
(1) Switching hub
A switching hub is a component to memorize the IP address of equipment to be connected to the hub to
hold the route at the other end. There is no limit in its stage due to no need of screening and detection
of the equipment at the other end. For details, refer to Clause 6.3.2.
(2) Optical media converter
This is a converter to transform a regular LAN signal to an optical signal.
The recommended MELCO optical media converter has Type A and Type B, and be sure to use in
pairs.
(3) Optical cable for LAN
This is optical cable for LAN.
Recommended specifications of the optical media converter are as shown in above table.
A system with a wiring length of 15km1 can be established by using optical cable.
1
The wiring length for LAN depends on an optical media converter to be used. For details, refer to Instruction Manual for Optical Media
Converter.
92
14. Step 11: Confirmation of Other Functions
14.1 Individual Browser Function
The Ver.2.5 of G-50A or later is provided with the individual browser function. (License registration required)
This function is not available with G-50A versions earlier than 2.5 (For administrator’s web browser
function, web monitor license registration is required). Please refer to section 2,3 for function licence.
14.1.1 Outline
This function is to be capable of operating and monitoring only the air conditioners (in a unit of group) to
which access is permitted like a local remote control, if a user or an administrator of air-conditioners
registers each group of general users whose access is permitted.
As the use of this function enables to set groups of every tenant, which are allowed to operate and monitor
air-conditioners, the operation of the air-conditioners by other tenant users can be avoided.
In addition, a license registration is required to use this function. If not registered, the air-conditioners
cannot be operated by general users.
G-50A
LAN
Power supply
unit for
transmission
line
MA remote
controller
Group 1
Can be
operated
HUB
MA remote
controller
Group 2
MA remote
controller
Group 3
Can not be
operated
User A of group 1 can
operate and browse only the
air conditioners of group 1.
User A
PC for monitoring
on the Web
User B
PC for monitoring
on the Web
User B of group 2 can
operate and brows only the
air-conditioners of group 2.
Figure 14-1 Outline of individual browser function
93
14.1.2 User registration from administrator
Administrators (users who access to Web window from administrator.html) perform user registration on the
Web window. Each user name is changeable. Set a pass word to be set together with a user name with
each user.
User name: English half-size characters (Up to 20 characters)
Pass word: English half-size characters (Up to 10 characters)
User information
The user names of administrators
and air-conditioners available are
displayed on the screen. (All the
groups of air conditioners under
the control of G-50A are displayed
on the screen.)
Air conditioners which can
be operated
Air conditioners which can be
operated are displayed. Move
the cursor to the icon, then the
names of groups are displayed
on the screen.
General user information
The user names of general
users and groups of airconditioners available are
displayed on the screen.
Setting/deleting buttons
These buttons are to set and
delete user information.
User name
The user names of general
users are displayed on
the screen. Up to 50 user
names can be registered.
Figure 14-2 Window for user registration
14.1.3 Log-in from general users
The registration of general users from administrators allows operating air-conditioners by general users
(users who access to Web window from administrator.html).
94
14.2 Trend Data Output Function
TG-2000A 4.1 or later version is additionally provided with the trend data output function.
14.2.1 Outline
Trend data and peak cut data in each optional function (measuring instrument charging function and peakcut function) can be output from CVS file. A trend graph can be developed from the output data in CSV file
by using the Support Tool for Trend Graph in the CD-ROM for Installation of TG-2000A.
The trend data which can be output are as shown in Table 14-1.
Trend data output
Peak cut data output
Figure 14-3 Trend data selecting screen
Table 14-1 Outline of trend data
Parameter file
Temperature
Electric power
(block)
Electric power
(IC)
Watt-hour
meter
Peak cut data
(daily report)
Peak cut data
(monthly report)
Descriptions
Inlet temperature and outlet temperature (set temperature) by
group and a unit of two minutes are output on a day-to-day basis.
Each value is a value of the unit with the smallest address
number in a group.
Electric power consumption and its power rate of every charging
block are output on a day-to-day basis.
Electric power consumption and its power rate of every indoor
unit are output on a day-to-day basis.
Electric power consumption and its power rate of every power
meter by a unit of one hour are output on a day-to-day basis.
Integral power consumption at an interval of one minute and
historical data for electric power by a unit of 30 minutes are
output on a day-to-day basis.
Historical data for consumed electric power by a unit of one day is
output on a month-to-month basis.
CAUTION
Display period of output data
(data holding period)
Past 31days of data
Remarks
Capable of
automatic output
Past 122days of data
Past 122days of data
Past 31days of data
Past 31days of data
Past 62days of data
Capable of
automatic output
Capable of
automatic output
Capable of
automatic output
● As for the Trend Data, each file is created by TG-2000A collecting the data from
G-50A and PLC.
Therefore, in the environment where TG-2000A is not connected full-time or in
case that TG-2000A can not communicate with G-50A or PLC, phenomena such
as missing of data and no formulation of a file may be induced.
95
14.2.2 Preparation for outputting parameter files
In order to output parameter files, a setting on the window of TG-2000A initial setting screen is required.
The following conditions allow each trend data to be output.
1 Trend data related to electric power (There are 3 kinds):
“Electric power PLC included”, “Watt-hour meter and measuring instrument connected”, and “Trend”.
2 Trend data for temperature: Check on “Trend” and “Temperature”.
3 Data for peak cut: “Electric power PLC included” and “Peak cut”.
In case of setting to “Trend”, the selection of an item from “Tool” in TG-2000A menu bar allows outputting a
trend data for a desired period. In addition, each trend data is automatically output in a folder for automatic
trend output every day or every month to be saved for 2 years.
Electric power and
measuring instrument
connected
Setting to “Electric power
and measuring instrument
connected” allows
outputting trend data for
electric energy by block,
electric energy by IC,
and watt-hour meter and
measuring instrument.
Peak cut
Executing “Peak cut”
allows outputting trend
data for peak cut
unconditionally.
File output destination
Selects the file output
destination of automatic
trend data file.
Electric power
PLC included
This setting allows
outputting trend data
for electric energy
and peak cut.
Trend
Setting to “Trend” allows
automatically outputting
trend data for electric
energy.
Besides, checking on
“Temperature” allows
automatically outputting
trend data for temperature.
14.2.3 How to output CVS files
In case of outputting trend data, using each function, the selection of “Tool” in TG-2000A menu bar allows
developing trend data CSV files. Also, at the same time, the trend data CSV file is automatically saved in
the automatic trend output folder every day. The automatic trend output folder is
C:¥TG2000A¥TrendData¥ (Default).
Additionally, the folder can be also changed.
A yearly folder and a monthly folder are created from each data in an automatic trend output folder to be
saved in the folders.
¥2003¥06¥
(Temperature data)
Temp[Year-Month-Day]B[Block No.].csv
(Year) (Month) (Watt-hour meter, measuring instrument) Mtr[Year-Month-Day].csv
(Monthly report on peak cut)
MtrPC[Year-Month].csv
(Daily report on peak cut)
G50PC[Year-Month-Day].csv
Selection of output object
Select output object to
output trend data.
(Selection 1, Selection 2,
Group, etc.)
Setting of output file
Set a folder and file to
be output.
Selection of period
Select a date of outputting.
Figure 14-4 Screen for manual output of trend
96
14.2.4 Example of CSV files output
Example of each output file is shown as below.
In addition, although each relevant datum is shown in each data column, the data value with the following
mark indicates abnormal data.
[-99]
: Indicates that TG-2000A have failed to collect normal data from G-50A and PLC.
[ ] (Blank): Indicates that the power source for TG-2000A has been off.
(1) Trend data for temperature
Selection is possible
in group, operating
block, and floor.
In a unit of 2 minutes in a designated period
(2) Trend data for watt-hour meter by block
Daily basis in a
designated period
The apportioned electric power consumption
and its charge of every designated charging
block are displayed on the screen.
The data apportioned in every block with an outdoor unit equipped
with WHM (watt-hour meter) are shown in a column of outdoor unit
and the data apportioned in every block with an indoor unit equipped
with WHM (watt-hour meter) are displayed in a column of indoor unit.
(3) Trend data for electric energy (IC)
Daily basis in a
designated period
Electric power consumption and its charge
of every designated indoor unit, floor, and
charge block are displayed on the screen.
The data apportioned in every block with an outdoor unit equipped
with WHM (watt-hour meter) are displayed in a column of outdoor unit
and the data apportioned in every block with an indoor unit equipped
with WHM (watt-hour meter) are displayed in a column of indoor unit.
97
(4) Trend data for watt-hour meter and measuring instrument
Consumed integrated electric
power of every designated
measuring instrument is
displayed on the screen.
Hourly basis in a designated period
(5) Data for peak cut (Daily report)
Electric power consumption of
every G-50A in a unit of 30 is
displayed on the screen.
A control level of electric
energy of every G-50A in a unit
of 2 minutes is displayed on
the screen.
In a unit of 2 minutes on a designated day
(6) Data for peak cut (Monthly report)
Daily electric power consumption of every
measuring instrument is displayed on the
screen.
A designated month (1 to the end of the month)
98
14.2.5 Graphing trend data
A trend graph can be developed from a CSV file output as trend data by means of “Support tool for
developing trend graphs” in the CD-ROM for TG-2000A installation.
[Essentials for display of a trend graph]
Excel 2000/XP
An output file of trend data or peak cut data
“Support tool for drawing trend graphs (Excel)”
Selection of trend data
Trend data and peak cut
data files are selected.
Display of a selected file
Selected trend data and
peak cut data files are
displayed on the screen.
D:¥TrendData¥2003¥07¥Temp2003-07-07B0003.csv
Trend graph button
Trend data and peak
cut data are developed
to trend graphs.
Figure 14-5 Support tool for trend graph
Example of trend graph for inlet temperature
Example of trend graph for watt-hour meter
integrated value
Example of trend graph for daily report
Example of trend graph for monthly report
99
15. Initial Setting Tool
15.1 What is the Initial Tool?
This is a tool for group setting of air-conditioners, registration of transmission report on abnormal mail, and
registration of the IP address of G-50A. The conventional central controller (MJ-103MTRA) was required to
input locally group setting and various initial settings such as a name of group, etc. The use of this tool,
however, allows development of data for initial settings in advance to carry out initial settings only with
transmitting those data to G-50A at local site.
In addition, since the following items cannot be set with G-50A without using the initial tool, they must be
registered without fail by means of the initial setting tool.
● When transmitting information on abnormal mail: Setting the abnormal mail transmission
● When connecting by way of gateway by the use of existing LAN: Registration of a gateway address
● When performing centralized control by a Web browser (Without TG-2000A): Registration of a block
setting
Figure 15-1 Example of screen for initial setting tool
100
15.2 Composition of Initial Setting Tool
Other than the CD-ROM for initial setting tool, PC and LAN cable are required for the use of the initial
setting tool.
15.2.1 PC for initial settings
A PC for initial settings must be in accordance with the following specifications:
Table 15-1 Operating environment
Items
PC
OS
CPU
HDD
Memory
Interface
Others
Descriptions
PC/AT compatible
Windows® 98/Me/2000/XP
Pentium 133MHz or more
20MB or more
64MB or more
LAN port
(Exclusive 10BASE-T recommended)
Remarks
In case of connecting to G-50A with LAN cable (PAC-YG00FA) for
initial setting, if the LAN port of a PC is of 10/100BASE-T automatic
changeover type, it may not be connected normally.
In this case, connect with LAN straight cable with a transmission
speed of LAN port of the PC fixed at 10Mbps or with a hub added
between G-50A and the PC.
CD-ROM drive
(Necessary when installing)
Pointing devices such as a mouse
101
15.2.2 Connection to G-50A
There are the following 3 patterns for connecting system to G-50A.
(1) Connection using LAN connecting cable for initial setting (PAC-YG00FA)
In the environment where G-50A is installed on the wall, control
panel, etc., a connection to the LAN connector located backside
may be difficult.
Therefore, a connector for the initial setting tool is mounted on
the control panel of G-50A.
If the top cover is removed, LAN communication is switched to
the side of the connector for LAN connecting by switching the
LAN change-over switch to the side B.
Notice
LAN change-over switch
Connector for
LAN connecting
PAC-YG00FA
G-50A
(in the state of the
top cover removed)
Initial setting tool
● Refer to Instruction Manual for Initial Setting for a method for connection to the initial
setting tool.
● In the case of connecting to G-50A with LAN connecting cable (PAC-YG00FA) for initial
setting which is sold separately, if the LAN port of a PC is of 10/100BASE-T automatic
changeover type, normal connection may be impossible. In this case, connect with
straight cable by way of a hub additionally provided between G-50A and a PC.
● As a serial number is recorded on the cover, be sure not to confuse the cover for G-50A
with other cover for G-50A when the cover is attached after the completion of initial setting.
(2) Connection to the backside of the main body
In the case of connecting directly to the LAN connector located
backside of the main body, connect with cross cable.
Notice
● In the case of connecting to G-50A with cross
cable, if the LAN port of a PC is of 10/100BASET automatic changeover type, normal connection
may be impossible. In this case, connect to
G-50A with straight cable by way of a hub
additionally provided between G-50A and PC.
(Backside of main body)
Ethernet
terminal
Cross cable
Initial setting tool
(3) Connection by way of a hub
In the case that LAN wiring of G-50A is completed and
connecting to the hub is available, connect with straight cable
for 10BASE-T by way of the hub.
Hub
Straight cable
Initial setting tool
102
G-50A
16. Other function
16.1 Auto-Changeover Function (Automatic
Changeover of Cooling/Heating Operation)
For the outdoor unit (Y Series) without the function of cooling/heating simultaneous operation, G-50A can
judge whether cooling or heating should be selected by observing a difference between the set and inlet
temperature of each indoor unit, and collectively changes over the operation of cooling/heating of indoor units
connected to the outdoor unit.
With this function employed, cooling operation is automatically selected if your room is getting hot, while
heating operation is automatically switched over if your room is getting cold. The troublesome work to change
over the operation mode by operating the remote controller of all indoor units, as was required in the past,
can be eliminated.
- Automatic cooling/heating Status judgment
(for every 15 minutes)
- changeover mode
- Typical group mode
Integrated software
(TG-2000A)
(In a unit of mode
changeover block)
G-50A
Changeover block 1
Group 1
Group 2
Outdoor unit
Group 4
Group 3
Indoor unit
The operation mode is changed over
for each changeover block collectively.
Changeover block 2
Group 5
Group 6
Figure 16-1 Configuration of auto-changeover system
The auto-changeover function includes two switching modes, [Auto-changeover mode] and [Typical air
conditioning group assigning mode]. Either mode can be set from the integrated software (TG-2000A) in a
unit of the changeover block*.
* Changeover block : This represents a block in the unit of refrigerant system. When an operation group
over refrigerant systems is set, the plural refrigerant systems for which the group
belongs to will form a same changeover block.
Table 16-1 Operation detail of each changeover mode
Changeover mode
Automatic changeover mode
Typical air conditioning group
assigning mode
Operation detail
The difference between the inlet temperature and set temperature of each air conditioning group
is checked once for 15 minutes, and the operation mode (cooling/heating) with higher priority is
changed over to operate by considering the air conditioning capacity ratio.
When a typical group is assigned, the difference between the inlet and set temperature of the
assigned group is checked once for 15 minutes, and the mode is changed over for operation.
In the case of the typical group under stopping or fan operation, automatic control takes place
with [auto-changeover mode] automatically.
103
16.1.1 Auto-changeover mode
Under this mode, the difference of the set and inlet temperature of air conditioning groups (excluding the
group under fan operation or stopping) contained in a same changeover block is measured to assign points
to each group accordingly, and from this resultant total, the changeover mode (cooling/heating) is judged
for selection.
In order to determine the changeover mode with the consideration of a ratio of the number utilizing each air
conditioner, the points by temperature difference are weighted with the capacity value of the indoor unit.
Group 1
Outdoor unit
4.5kW
Group 2
4.5kW
4.5kW
Group 3
4.5kW
Group 4
7.1kW
7.1kW
7.1kW
7.1kW
Weighting
= Group capacity/Whole capacity
.
Group 1 = 9.0/46.4 =. 19 (%)
.
Group 2 = 4.5/46.4 =. 10 (%)
.
Group 3 =11.6/46.4 =. 25 (%)
.
Group 4 = 21.3/46.4 =. 46 (%)
Figure 16-2 Weighting of air conditioner group
When the points of each air conditioner group are multiplied with the weighting factor as below and
summed up, cooling is selected if the result stays on a positive number (over 1) while heating is selected if
it stays on a negative number (below -1).
Table 16-2 Temperature difference between set and inlet temperature and points
Temperature difference between set
and inlet temperature
Set temperature Inlet temperature
Set temperature Inlet temperature
0
| t| 1.5
0
0
Temperature difference and points
1.5 | t| 3.0
1 x weighting
-1 x weighting
3.0 | t|
2 x weighting
-2 x weighting
16.1.2 Typical air conditioner group assigning mode
Judging for cooling/heating to be operated by viewing the set and inlet temperature of assigned air
conditioner groups within a changeover block for every 15 minutes, the indoor units within the changeover
block are switched over to cooling/heating for operation collectively.
Table 16-3 Temperature difference between set and inlet temperature and points
Temperature difference between set
and inlet temperature
Set temperature Inlet temperature
Set temperature Inlet temperature
Notice
104
Temperature difference and points
0 | t| 1.5
1.5 | t|
Keeping present state
Cooling operation
Keeping present state
Heating operation
● This function is only applicable to the indoor units connected to M-NET outdoor unit, but not
covering the indoor units connected to K-control outdoor unit and A-control outdoor unit.
● The indoor units under stopping or fan operation are out of the object for changeover.
When setting the [Typical air conditioner group assigning mode], the control will be
performed automatically with the [Auto-changeover mode] if the typical group is stopped
or under fan operation.
● Since the operation mode is determined by judging the status of each indoor unit
comprehensively under the [Auto-changeover mode], comfort may not be maintained at
the surrounding of the air conditioner partially. In such case, use a proper air conditioner
as the typical group under the [Typical air conditioner group assigning mode].
Mitsubishi Electric
Air Conditioning Network System
Centralized Controller G-50A and
Integrated Centralized Control Software TG-2000A
Technical Manual
Issued in Dec. 2003 F1105-302 (MDOC)
Contents effective Dec. 2003
Specifications subject to change without notice.
3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024
Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904
www.mrslim.com
Specifications are subject to change without notice.