Getting Started Manual Rev. 2.0

MCS-MAGNUM HARDWARE VERSION 7.1+

GETTING STARTED MANUAL REVISION 2.0

The MCS Commitment:

Our commitment is to provide practical solutions for the industry’s needs and to be both a leader and partner in the effective use of microprocessor controls.

Micro Control Systems, Inc.

5877 Enterprise Parkway

Fort Myers, Florida 33905

Phone: (239) 694-0089

Fax: (239) 694-0031

www.MCScontrols.com

(Website contains product descriptions, manuals, software releases, troubleshooting aids, etc.)

All information contained within this document is considered to be proprietary information of Micro Control Systems, Inc. No information or data from this document shall be published, used, reproduced, transmitted, or disclosed to others outside your organization without the prior expressed written consent of Micro Control Systems, Inc. This document and the information contained herein shall be treated as proprietary. Reasonable provisions shall be provided to ensure that this information remains proprietary by your employees, agents and other personnel that may have access to this document.

Revision Page

Date Author Description of Changes

Created manual

Updated Manual to Rev 2.0

 Updated Hardware to 7.1+

2

GETTING STARTED MANUAL REVISION 2.0

Table of Contents

Revision Page ........................................................................................................................................................ 2

 

Table of Contents ................................................................................................................................................... 3

 

Introduction to Magnum V8 Software ................................................................................................................. 4

 

Magnum V8 Software Control Point Capacity ................................................................................................... 4

 

Magnum Hardware Supported by Magnum V8 Software ................................................................................. 4

 

About the Magnum .............................................................................................................................................. 4

 

MCS 485 Network ............................................................................................................................................... 4

 

MCS Ethernet Port .............................................................................................................................................. 4

 

RS485 Network with Remote Modem Communications .................................................................................. 6

 

Crossover Ethernet Cable Connection .............................................................................................................. 7

 

PC Support Software for Magnum ..................................................................................................................... 8

 

Requirements for PC Software ........................................................................................................................... 8

 

Preparing to Upgrade an Existing Chiller ......................................................................................................... 10

 

Step 1- Open MCS Supplied Upgrade Kit ....................................................................................................... 10

 

Step 2- Plan to Mount New Microprocessor .................................................................................................... 10

 

Step 3- Prepare to Start the Unit ...................................................................................................................... 10

 

Keypad Display Screens ..................................................................................................................................... 12

 

Menu Key ............................................................................................................................................ 12

 

Status .................................................................................................................................................. 12

 

Outputs ............................................................................................................................................... 13

 

Inputs .................................................................................................................................................. 13

 

Alarms ................................................................................................................................................. 14

 

Graphs ................................................................................................................................................ 14

 

Setpoints ............................................................................................................................................. 14

 

Service Tools ...................................................................................................................................... 15

 

Lockout Reset ..................................................................................................................................... 15

 

Lockout Alarms ................................................................................................................................... 16

 

Passwords .......................................................................................................................................... 16

 

Authorization Function ...................................................................................................................................... 16

 

Schedule Function ............................................................................................................................................... 17

 

BMS Communication Protocols ........................................................................................................................ 18

 

MCS-Magnum to BMS Connections ................................................................................................................ 18

 

MCS-Magnum BMS protocols settings ............................................................................................................ 19

 

Bacnet Over IP .................................................................................................................................... 19

 

Modbus RTU ....................................................................................................................................... 19

 

Modbus TCP/IP ................................................................................................................................... 19

 

Johnson N2 ......................................................................................................................................... 20

 

The MCS Sensors Quick Reference Sheet ....................................................................................................... 20

 

Trouble Shooting Quick Reference Sheet ........................................................................................................ 21

 

3

GETTING STARTED MANUAL REVISION 2.0

Introduction to Magnum V8 Software

Magnum V8 software has been designed to control many different types of compressors of both fixed and variable capacity, as well as many additional features. Supported control options include multiple liquid line solenoids, electronic expansion valves (EXVs), liquid injection, economizers, hot gas bypass, variable frequency drives

(VFDs), digital scrolls, and many more.

Applications vary from control of a single compressor to complex multiple compressor systems. In all applications, however, safety and operating efficiency is of primary importance. The controller interface is made to be informative and meaningful, with built-in logic to prevent unsafe operating conditions from occurring. This helps reduce or even completely eliminate nuisance alarms.

Magnum V8 Software Control Point Capacity















Circuits (compressors): Up to 20

Steps per circuit:: Up to 4

Relay Outputs: Up to 80

Analog Outputs: Up to 20

Sensor Inputs: Up to 80

Setpoints: 230

Alarm Memory: 100

Magnum Hardware Supported by Magnum V8 Software

The following MCS boards can be connected together through the MCS-I/O communications terminal block:

 MCS-Magnum (10 RO’s, 12 SI’s, 4 Digital SI’s, and 4 AO’s)





MCS-I/O

MCS-RO8

(8 RO - 8 SI - 1 AO with I/O 7.00-C with a GAL 5.0 chip)







MCS-SI16

MCS-RO10

MCS-SI16-AO4

(10 RO)

(16 SI and 4 AO)

The versatility of the Magnum offers the user much flexibility in configuring the controls in an economical way. The limitation is not the number of boards but the total number of points.

About the Magnum

The Magnum is a rugged microprocessor controller designed for the harsh environment of the HVAC/R industry. It is designed to provide primary control without needing mechanical controls. It will interface locally with a null modem serial cable, remotely through an Ethernet connection, and also through building management systems.

The Magnum offers a great deal of flexibility with adjustable setpoints and control options that can be set prior to activating a system or even when the unit is operational. The Magnum is designed to safeguard the system being controlled, minimize the need for manual intervention, and to provide a simple but meaningful user interface.

MCS 485 Network

The MCS 485 Network can support up to 20 Magnum’s and their associated I/O boards. Access to this network can be local through a RS232 or Ethernet connection, or remotely through a 14.4K Baud modem. When using the dialup connection through a modem there is no degradation in the performance of the network.

Each Magnum in the network must be assigned a unique address in the configuration file. This address will be the key in establishing communications with the appropriate Magnum system. It can be viewed or changed from the

LCD / keypad of the unit with Factory authorization.

 RS 232 transmissions should not exceed 50’ in length.

 RS 485 transmissions should not exceed 1 mile without a repeater.

MCS Ethernet Port

When connecting directly through the 100 MBPS Ethernet port on the Magnum from a PC it is necessary to use a crossover Ethernet cable.

4

GETTING STARTED MANUAL

RS485 Network with Local RS232 Communications

RS 232

RS 485

REVISION 2.0

5

GETTING STARTED MANUAL

RS485 Network with Remote Modem Communications

REVISION 2.0

RS 485

6

GETTING STARTED MANUAL

Crossover Ethernet Cable Connection

REVISION 2.0

7

GETTING STARTED MANUAL

PC Support Software for Magnum

REVISION 2.0

MCS-Connect provides both local and remote communications to the Magnum independent of software type. Local communications can be either through an RS485 or Ethernet connection. This program displays the status of the controller, and changes can be made to the system with proper authorization. Configuration files can be transmitted to or received from a Magnum unit. The Magnum automatically performs history logging and this program allows the data to be presented in a useful graph form. A manual created in a PDF format is available on our web site: www.MCScontrols.com, or available in other formats upon request.

Requirements for PC Software

To install and run the program we suggest the following system requirements:

Minimum System Required to Run Program

 Windows 2000 or higher

 20 Gigabyte Available Hard Disk space

 Super VGA Display capable of displaying 256 colors

 512 Megabytes RAM

8

GETTING STARTED MANUAL

MCS-MAGNUM Revision 7.0 and Higher

+12 VDC RS485 MCSI/O Ethernet

Input PWR

Fuse

REVISION 2.0

PWR Input

Terminal Spare Input

Power Fuse

Ten (10) Relay

Output terminals.

(COMMON.

NO,NC)

Twelve (12)

Sensor Input

Terminals

(Analog or

Digital)

Keypad / Display

Wiring

Four (4) Analog

Outputs

9

Four (4) Digital

Inputs

GETTING STARTED MANUAL REVISION 2.0

Preparing to Upgrade an Existing Chiller

Step 1- Open MCS Supplied Upgrade Kit

(Usually fits in a 16” x 16” x 16” box)

 Verify Packing list of all MCS parts

 Obtain Spiral Binder (Divided in up to 4 sections):

 Getting Started Manual

 MCS-Config

 Drawings of each MCS printed circuit board with wiring connections

 Specification sheet for each MCS part

Step 2- Plan to Mount New Microprocessor

 Keypad / Display

 Chiller Installed Outside- You should use a Panel mount which you install inside the existing rain proof enclosure.

 Chiller Installed Inside- You should use a Door mount with a Template for mounting

 Mount electronics in dry location.

 Do not mount in enclosure with Frequency Drive or High Voltage.

 Avoid mounting in front of or close to High Voltage Contactors.

 High Voltage wiring should be run separate from Low Voltage wiring.

 All wiring to Analog Sensors must be with shielded cable.

 When running shielded cable in areas with high voltage avoid running parallel. (Run perpendicular)

 Allow adequate space on all sides of MCS boards to run cables and plug in communication cables.

 If at all possible, avoid splicing shielded cable. If a splice is required please do the following:

 Splice in an area where no high voltage is within three (3) feet.

 Splice in a dry area.

 Splice all wires including Drain wire with butt connectors or solder. (Foil shield need not be connected. Tape connections.) Stagger where butt connectors are made to avoid bulky connections.

GROUND CONNECTIONS

 It is important to provide a good earth ground to the 120 VAC power input to the printed circuit

boards.

 Do not jumper the ground connections to MCS boards. Each printed MCS board should have its

ground wired directly to ground with a wire made as short as possible (12AWG).

Step 3- Prepare to Start the Unit

 Relay Output Check - Once the microprocessor has been completely wired a dry test of the wiring should be done. To accomplish this use the following procedure:

 Keep main power to compressors off. Keep high voltage breakers off or pull fuses to compressors.

 Turn on 120 VAC control power.

 Get authorized on the MCS-Magnum controller. (via the keypad or MCS-Connect.)

 Put each Relay Output in ‘MANUAL ON’ and verify the appropriate contactor or solenoid turns on.

When testing the wiring to a Liquid Line Solenoid be careful not to leave it on too long if the system uses an expansion valve.)

 Place each digital Sensor Input in ‘MANUAL ON’ to verify the correct value.

 Verify all Analog Sensors are within reasonable tolerances.

 Remove the Packard connector from each pressure transducer. Verify the computer reads -99.9P on the correct sensor.

 Calibrate pressure transducer offsets.

 If you have any Analog Outputs verify they are correct. Manually set analog values to 0%, 50%, and 100%.

 After testing all Outputs and Inputs, make sure all RO’s, SI’s and AO’s are in ‘AUTO’ mode.

 Through the keypad, clear alarms and point information under ‘Service Diagnostics’ with factory authorization.

 If any compressor is in Lockout, perform a Lockout Reset to clear.

10

GETTING STARTED MANUAL REVISION 2.0

 All setpoints should be displayed on the MCS-Magnum and reviewed for correctness. Specific attention should be paid to the following Setpoints:

 Verify / set ‘Full Load Amps’

 Verify / set ‘Target’ (supply air / leaving liquid)

 ‘Low Suction, Freeze’.

 ‘High Disc’ based on water or air-cooled setpoints

 You are now ready to turn on main power.

 Once main power is ON verify the following:

 All Relay Outputs are in ‘AUTO’. (Not ’Lockout’)

 Flow switch is ‘ON’ or ‘YES’.

 RUN/STOP is in ‘RUN’.

 Assuming additional capacity is required the control state should go to ‘LOADING’. Once the delay has reached zero the lead compressor will turn on. (If a screw with oil, then the oil pump will come on first)

 When the compressor comes on the LLS should open. (There may be a pre-pump out to eliminate liquid from reaching the compressor for direct expansion systems.)

 Watch suction, discharge, amps etc. to verify the unit is running normally.

 For screw compressors: Verify if the load and unload pulse timing setpoints need adjusting. The pulse should allow the slide to move so the amps are moving but not overshooting the target. You may need to also adjust the amp deadband setpoints if the system seems to hunt. (Amp deadband should be about 3-4% of FLA)

 Fine-tuning should now be done. (ROC, step delay, control zone, etc.)

11

GETTING STARTED MANUAL REVISION 2.0

Keypad Display Screens

To reach the Main Menu press the Menu button after powering up. Based on the highlighted menu option when the enter key (

) is pressed will bring up one of the following screens.

Menu Key

Pressing the ‘Menu’ key shows the following:

ACTUAL DISPLAY

09:56 Main Menu

-Status -Setpoints

Tools

-Inputs -Lckout

-Alarms -Lckout

Help

ALM

-Graphs -Passwords

DESCRIPTION

HH:MM Screen Title

-Control Status Display -Active Setpoints Display

-Relay/Analog Display

-Sensor Input Display

-Alarm Display

Help

-Graphing Display

-Service Tools Display

-Lockout Reset Display

-Lockout Alarm Display

-Password Display

Status

Selecting the ‘Status’ menu option shows the following Chiller Status screen:

ACTUAL DISPLAY DESCRIPTION

09:56 Unit 23/35

UNIT IS LOADED

002:26:18

WTD ACT WTD% DLY ROC

1 1 100% 300 0.0

TARG=27.0

PG  PG 

HH:MM CHILLER UNIT LEV/ENT

CURRENT CONTROL STATE

TIME IN CURRENT STATE

WANTED ACTUAL WANTED% DELAY SLOPE

#STEPS #STEPS ACTUAL% NEXT CHG DIRECTION

TARGET SET POINT + TARGET RESET

Page Up Page Down

Pressing the Page Down button shows the following Circuit Status screen:

ACTUAL DISPLAY DESCRIPTION

09:56 CMP #1 23/35

CMP IS HOLDING

002:26:18

SUCT DISC OPD MOTOR

44P 222P 156P 101%

33F 177F OK OK

PG



PG



HH:MM CIRCUIT LEV/ENT

CURRENT CONTROL STATE

TIME IN CURRENT STATE

SUCTION DISCHARGE OIL DIFFERENTIAL MOTOR

PRESSURE PRESSURE PRESSURE AMP %

TEMPERATURE TEMPERATURE STATUS STATUS

Page Up Page Down

Pressing the Page Down button shows the next Circuit Status screen:

ACTUAL DISPLAY DESCRIPTION

09:55 CMP #1 45/54

CMP OFF/READY

000:00:42

SST SSH SCT DSH

38 16.9 97 79.2

PG



PG



HH:MM CIRCUIT LEV/ENT

CURRENT CONTROL STATE

TIME IN CURRENT STATE

SAT.SUCT. SUCT SHEAT SAT.COND. DISC SHEAT

TEMP TEMP TEMP TEMP

Page Up Page Down

12

GETTING STARTED MANUAL

Pressing the Page Down button shows the following Liquid Line Solenoid Status screen:

ACTUAL DISPLAY DESCRIPTION

09:55 LLS #1 45/54

IS HOLDING

002:43:42

Suction Info

PRES SST TEMP SSH

14.0P 60F 12F 47.0

PG



PG



REVISION 2.0

HH:MM LIQUID LINE SOLENOID LEV/ENT

CURRENT CONTROL STATE

TIME IN CURRENT STATE

SUCTION SAT.SUCT. SUCTION SUCT.SHEAT.

PRESSURE TEMP TEMP TEMP

Page Up Page Down

Outputs

Selecting the ‘Outputs’ menu option shows the first 4 Relay Outputs:

ACTUAL DISPLAY DESCRIPTION

09:56 Outputs  

Relays Status

M-1 COMP Lck Off

M-2 LOAD Lck Off

M-3 UNLOAD Lck Off

M-4 LLS 1 Lck Off

Anlog

PG



PG



HH:MM Screen Title Left/Right Arrow

RO position & names Current status of RO

Using the Left and Right arrow buttons allows user to view all data for RO’s displayed (Status, Last On, Last Off, Run Time

Today, Cycles Today, Run Time Yesterday, Cycles Yesterday,

Total Run Hours, and Total Cycles)

Switch to AO’s Page up Page down

Pressing the Page Down button shows the next 4 Relay Outputs:

ACTUAL DISPLAY DESCRIPTION

09:56 Outputs  

Relays Status

M-5 LIQ INJ On

M-6 HOT GAS On

M-7 LLS 2 On

M-8 SUBCOOLER On

Anlog

PG



PG



HH:MM Screen Title Left/Right Arrow

RO position & names Current status of RO

Using the Left and Right arrow buttons allows user to view all data for RO’s displayed (Status, Last On, Last Off, Run Time

Today, Cycles Today, Run Time Yesterday, Cycles Yesterday,

Total Run Hours, and Total Cycles)

Switch to AO’s Page up Page down

Continue pressing the Page Down or Page Up buttons to scroll through all the Output screens.

Inputs

Selecting the ‘Inputs’ menu option shows the first 4 Sensor Inputs:

DESCRIPTION ACTUAL DISPLAY

09:56 Inputs  

Sensor Value

M-1 SUCT PSI 66.0P

M-2 DISC PSI 121.3P

M-3 SPAREM-3 ----

M-4 AMPS 52.3A

PG



PG



HH:MM Screen Title Left/Right Arrow

SI position & names Current status of SI

Using Left/Right arrow allows user to view all data for SI’s displayed

(Value, Type, Last On, Last Off, Max Value Today, Min Value Today, Run

Time Today, Average Value Today, Cycles Today, Run Time Yesterday, Max

Value Yesterday, Cycles Yesterday, Min Value Yesterday, Total Run

Hours, Average Value Yesterday, and Total Cycles)

Page up Page down

13

GETTING STARTED MANUAL REVISION 2.0

Pressing the Page Down button shows the next 4 Sensor Inputs:

DESCRIPTION ACTUAL DISPLAY

09:56 Inputs  

Sensor Value

M-5 DISC TMP 150.0F

M-6 GlycTmp In 20.0F

M-7 GlycTmpOut 19.0F

M-8 Evp1SucTmp 15.0F

PG



PG



HH:MM Screen Title Left/Right Arrow

SI position & names Current status of SI

Using Left/Right arrow allows user to view all data for SI’s displayed

(Value, Type, Last On, Last Off, Max Value Today, Min Value Today, Run

Time Today, Average Value Today, Cycles Today, Run Time Yesterday, Max

Value Yesterday, Cycles Yesterday, Min Value Yesterday, Total Run

Hours, Average Value Yesterday, and Total Cycles)

Page up Page down

Continue pressing the Page Down or Page Up buttons to scroll through all the Input screens.

Alarms

Selecting the ‘Alarms’ menu option shows the first 2 alarms:

ACTUAL DISPLAY DESCRIPTION

09:56 Alarms

1 LOST RO COMM #2

JUL 04 12:09:16

2 LOST RO COMM #1

JUL 04 12:09:16

PG



PG



HH:MM Screen Title

1 st Alarm # Alarm Title Unit Number

Alarm Date & Time of 1

2 nd st

Alarm # Alarm Title Unit Number

Alarm Date & Time of 2 nd

alarm

alarm

Page up Page down

Continue pressing the Page Down or Page Up buttons to scroll through all the Alarm screens.

Graphs

Selecting the ‘Graphs’ menu option shows the following:

ACTUAL DISPLAY DESCRIPTION

14:48 Graphs SUCT PSI

70

65

60

14:22:13 14:36:15 14:48:46

EDIT RO AO

HH:MM Screen Title Sensor Name

The graph has the last 25 samples with an appropriate scale to allow it to fit on the display. Using the up/down arrows will scroll through the different Sensor

Inputs, Relay outputs, or Analog Outputs.

Edit Sample Rate Switched to RO’s Switches to AO’s

Setpoints

Selecting the ‘Setpoints’ menu option shows the first 4 setpoints:

ACTUAL DISPLAY DESCRIPTION

09:56 Setpoints  

Name Value

1 GLYCOL TRGT -5.2F

2 CTRL ZONE+

3 CTRL ZONE- 0.5F

17 LO SUPERHEAT 2.0F

PG  PG 

HH:MM Screen Title Left/Right Arrow

Using Left/Right arrow allows user to view all data for the setpoints displayed (Value, Time(sec), and Type)

Page up Page down

14

GETTING STARTED MANUAL REVISION 2.0

Pressing the Page Down button shows the next 4 setpoints:

ACTUAL DISPLAY DESCRIPTION

09:56 Setpoints

Name

 

Value

23 POWERUP DLAY 15s

25 STEP SENSIT 1

HH:MM Screen Title Left/Right Arrow

Using Left/Right arrow allows user to view all data for the setpoints displayed (Value, Time(sec), and Type)

26 STEP DELAY 180s

27 MAX ROC- -0.7F

PG



PG

 Page up Page down

Continue pressing the Page Down or Page Up buttons to scroll through all the setpoint screens.

Service Tools

Selecting the ‘Service Tools’ menu option shows the following submenu:

ACTUAL DISPLAY DESCRIPTION

09:56 Serv Tools

-RS485 Network 1

-Ethernet Network

-System Info

-Time / Date

-Display

PG



PG



HH:MM Screen Title

Highlight choice and press enter to access Sub Menu.

1.RS485 Network- View network protocol, address, and baud rate.

2.Ethernet Network- View dynaimic IP, IP address, Subnet mask, default gateway, and MCS port. 3.System Info- View Firmware version, config name, company name, model name, unit serial number, install date, config version, config date, bootloader version, hardware serial number, physical mac address, and type of I/O boards. 4.Time / Date- View and change the time or date.

5. Display View contrast, background color, and backlight.

Page up Page down

Pressing the down arrow shows the rest of the submenu options:

ACTUAL DISPLAY DESCRIPTION

09:56 Serv Tools

-Clr Alarm Hist

-Clr Point Info

-Sensor Diagnostics

-Config Checksums

PG



PG



Lockout Reset

HH:MM Screen Title

Highlight choice and press enter to access Sub Menu.

6.Clr Alarm Hist- Clear the alarm history. 7.Clr Point Info-

Clear the point information. 8.Sensor Diagnostics- View sensor values and voltages. Page Up/Down for more sensors.

9.Config Checksums- view if a section of the configuration has been corrupted when an invalid config alarm occurs. Both the calculated checksums and storage checksums are displayed allowing the user to compare the checksums. If all checksums match, then the file is not corrupted. If a section has been corrupted the checksums will not match.

Page up Page down

Selecting the ‘Lckout RST’ menu option shows the following:

ACTUAL DISPLAY DESCRIPTION

09:56 Main Menu

-Status -Setpoints

Lockout

Reset?

Help

No

Tools

Yes

RST

ALM

-Graphs -Passwords

HH:MM Screen Title

Pop-up will prompt user to perform lockout reset.

15

GETTING STARTED MANUAL REVISION 2.0

Lockout Alarms

Selecting the ‘Lckout ALM’ menu option shows the first 2 Lockout alarms (Lockout alarms are a subset of alarms):

ACTUAL DISPLAY DESCRIPTION

09:56 Lckout ALM

11 ALARM CIR BREAKER

MAR

No Additional Info

Prev Next

HH:MM Screen Title

Screen will show any Lockout Alarms, including the alarm number, name, date, and time.

Previous alarm Next

Passwords

Selecting the ‘Passwords’ option shows the following:

ACTUAL DISPLAY DESCRIPTION

09:56 Password

Enter Pin

----

Then Press ‘ ‘ Key

Authorization Function

HH:MM Screen Title

Enter 4 digit Password and press the enter key to gain authorization.

The authorization code is a special four-character code that enables access in to the Magnum system. The code must be numeric with values between 1 and 8 if it is entered from the Keypad/Display. If the Magnum is being accessed through MCS-Connect, the code may consist of any valid alpha/numeric characters. Each system can have up to 15 different authorization codes. There are four levels of authorization, which provide different capabilities within the system. The authorization codes cannot be viewed in a Magnum system. These are established when building the configuration file in MCS-Config.

From the Keypad/Display the following changes can be made based upon the authorization level:

FUNCTION VIEW USER SERVICE SUPERVISOR FACTORY

Sensor offsets

Sensor diagnostics

Clear alarm history

NO

NO

NO

NO

YES

YES

YES

YES

YES

YES

NO NO NO NO YES

Date and time set

Day of week set

Change No Flow Lockout or shut down

YES

YES

NO

YES

YES

NO

YES

YES

NO

YES

YES

NO

YES

YES

YES

Change operating schedules NO

Change holiday dates

Lockout Reset

NO

**

YES

**

YES

**

YES

**

YES

YES

Change Ethernet network settings

Adjust Keypad/Display contrast

NO

YES

YES

YES

YES

YES

YES

YES

YES

YES

* Setpoints may have individual authorization levels; you must have the proper authorization to view or edit them.

**See the Setup screen of the configuration for authorization level(s) that are allowed unlimited resets per day.

Authorization levels below ‘Auth Level Bypass’ are allowed only a limited number of resets. Authorization levels at and above ‘Auth Level Bypass’ are allowed unlimited lockout resets.

16

GETTING STARTED MANUAL REVISION 2.0

To get authorized on Magnum do the following:

‘Menu’

, , , or  to position the cursor on ‘Passwords’

3. Press

4. Enter 4 digit password and press

.

5. Press ‘Menu’ to make next selection.

Schedule Function

In MCS-Connect, there is the capability to set up specific schedules for which the unit will be allowed to run (up to 2 distinct on/off times. When the ‘Schedule’ tab is selected, the following screen will show:

Holiday On/Off Times

Weekly On/Off Times

Holiday Schedule Dates

To make changes to the schedule, you must be authorized at USER level or above. Once authorized, double click on a day to change its scheduled on/off times, and the following pop-up will appear:

Within this dialog box, you are able to select up to 2 different start/stop times per day. Make sure the times do not conflict with each other (Note: the

Magnum software uses 24 hour time, not 12 hour am/pm). If you only need one on and off time, then leave the second on/off times at zero.

In addition to the standard 7 day weekly schedule, up to 8 individual dates throughout the year may be specified to run a special holiday schedule. The holiday on/off times are set up in the same way as above for the days of the week. To select the dates on which to run the holiday schedule, double click on one of the 8 holiday slots to bring up the following pop-up box in which to input the holiday’s month and day:

During the times when the unit is scheduled to be off, the Unit Status will change to “SCHEDULED OFF”, and the compressor(s) state will change to “CMP IS OFF”. No compressors will be allowed to run until the next time the unit is scheduled to be on.

If no schedule is specified by the user and the default settings are kept, then the unit will run based solely off the control sensor regardless of time or date.

17

GETTING STARTED MANUAL REVISION 2.0

BMS Communication Protocols

The MCS-Magnum supports BACnet IP, Modbus RTU, Modbus TCP/IP, and Johnson N2. Supported baud rates for

Modbus RTU and Johnson N2 are 4800bps, 9600bps, 19200bps, 38400bps, and 57600bps.

MCS-Magnum to BMS Connections

18

GETTING STARTED MANUAL REVISION 2.0

MCS-Magnum BMS protocols settings

Bacnet Over IP

The BACNET DEVICE ID is a five-digit number. The first three digits are based on our Bacnet vendor ID 181, and the last two are set by the Bacnet/MSTP address.

181 XX

 

Bacnet Bacnet MS/TP

Vendor ID Address

The Bacnet address can be verified and changed (with the proper authorization code) from the Keypad/LCD. The following steps will display the Bacnet MSTP Network address, and the Baud Rate:





Press the Menu key, select Serv Tools, and then press the Enter key.

Select RS485 Network then press Enter.





Select Protocol then press Enter. Change the protocol to BACnet MSTP

Select address then press Enter. Change the address so it matches the last two digits of the device ID then

 press Enter.

Select Protocol then press Enter. Set the protocol back to MCS.

The following steps will display the Ethernet Network settings:

If you are going to manually assign the IP Address, Subnet Mask, and Default Gateway.





Press the Menu key, select Serv Tools, and then press the Enter key.

Select Ethernet Network then press Enter.









Set “DHCP Enabled” to NO.

Set the “IP Address”.

Set the “Subnet Mask”.

Set “Default Gateway”.

If you are going to let your network assign the IP Address, Subnet Mask, and Default Gateway:





Press the Menu key, select Serv Tools, and then press the Enter key.

Select Ethernet Network then press Enter.

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

Set “DHCP Enabled” to YES.

Connect the MCS-Magnum to the network and power up the board.

Modbus RTU

The Modbus RTU address can be verified and changed (with the proper authorization code) from the keypad/LCD.

The following steps will display the Modbus RTU Network address, and the Baud Rate:





Press the Menu key, select Serv Tools, and then press the Enter key.

Select RS485 Network then press Enter.

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

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

Select Protocol then press Enter. Change the protocol to Modbus.

Select address then press Enter. Change the address then press Enter.

Select Baud then press Enter. Set the baud rate then press Enter.

Connect the communication wires to the TX RS485 three-position terminal located above the Ethernet connector.

Modbus TCP/IP

This protocol is always active. Make sure the MCS-Magnum network settings are set correctly.

If you are going to manually assign the IP Address, Subnet Mask, and Default Gateway.

Press the Menu key, select Serv Tools, and then press the Enter key.

 Select Ethernet Network then press Enter.





Set “DHCP Enabled” to NO.

Set the “IP Address”.

 Set the “Subnet Mask”.

 Set “Default Gateway”.

If you are going to let your network assign the IP Address, Subnet Mask, and Default Gateway:

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GETTING STARTED MANUAL REVISION 2.0









Press the Menu key, select Serv Tools, and then press the Enter key.

Select Ethernet Network then press Enter.

Set “DHCP Enabled” to YES.

Connect the MCS-Magnum to the network and power up the board.

Johnson N2

The N2 address can be verified and changed (with the proper authorization code) from the keypad/LCD.





Press the Menu key, select Serv Tools, and then press the Enter key.

Select RS485 Network then press Enter.









Select Protocol then press Enter. Change the protocol to N2.

Select address then press Enter. Change the address then press Enter.

Select Baud then press Enter. Set the baud rate then press Enter.

Connect the communication wires to the TX RS485 three-position terminal located above the Ethernet connector.

The MCS Sensors Quick Reference Sheet

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GETTING STARTED MANUAL

Trouble Shooting Quick Reference Sheet

(A complete trouble shooting guide is available from our web site)

REVISION 2.0

A sensor input reads -99.9

A sensor input reads +999.9

A sensor is reading less then or greater than 3% off

LCD blank or flashing.

Lost I/O

This indicates an open sensor input signal or 5 VDC problem.

 Check sensor wiring for missing wire or poor connection.

 Check sensor for bad sensor.

If less than 5 VDC is on the sensor 5 VDC terminal block, the problem is with probably a shorted sensor. (A poly fuse protects the board)

 Remove all sensor input terminals.

 Wait about 1 min. or until 5 VDC restored at sensor input.

 Connect terminals 1 at time until short reappears.

This indicates a shorted sensor input signal.

 Check sensor wiring for +5VDC shorted to signal etc.

 Check sensor for bad sensor.

This indicates the sensor needs to be calibrated. (You need to have a valid

Authorization code to change sensor offsets)

 Press Service Diagnostics, press until LCD display s sensor offset option

 Press enter, 1st SI# and offset appears (i.e. Suction 1 = 0.0)

 Scroll using “increase (+)/decrease (-)” keys to find sensor to be calibrated

Press enter, use the “increase (+)/decrease (-)” keys to change the calibration value. When value is correct, press enter.

Indicates bad connection.

 Check wiring to keypad

 Could indicate bad software transfer, retransmitting may be necessary.

Indicates communications problem.

 Verify RS485 LED blinking.

 Verify termination jumper only on JP4 on the MCS-Magnum and the last I/O board.

 Verify MCS-Magnum and each I/O’s address is set correctly.

 Verify wiring from the MCS-Magnum to each I/O is correct.

 Check fuses/120 VAC on I/O units

This indicates an input problem with 1 sensor. Invalid reading on one sensor input.

Invalid authorization This indicates an invalid authorization number.

Follow steps below for proper authorization

 Press SERVICE DIAGNOSTICS until the auth. option appears

 Press the ENTER key

 From the “Display Status” press keys corresponding to your authorization #

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GETTING STARTED MANUAL REVISION 2.0

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GETTING STARTED MANUAL REVISION 2.0

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