FDP3 Toshiba Interface v1.02
Installation and Operating Instructions
126.00
0V S1 S2 S3 0V S4 S5 S6
Mounting
118.00
114.00
Ø 5.00
1
63.00
Ø 5.00
100.00
76.00
4.00
13.00
FDP3
Toshiba Control Interface
TCC-NET
A B
LED1
RS485 D-BUS
GND
SW 1
LED2
ON
LED4
1 2 3 4 5 6 7 8
1
J2
0
R1
+ 0
R2
+
LED5 LED6
Ø 5.00
100.00
22.00
All dimensions in mm
1
63.00
13.00
FDP3 Description
The FDP3 is a low cost monitoring and control interface for Toshiba VRF and
Split ranges of air-conditioners. The interface is compatible with all units that have a TCC-NET A,B remote controller network connection. No other network adaptor cards are required even for split A/C units.
Functions
HARDWIRED CONTROL. Unit control can be achieved through resistance inputs using potentiometer and volt-free contact inputs.
BMS INTEGRATION. Unit control can be achieved through 1-10V voltage inputs integrated with BMS control outputs.
REMOTE CONTROLLER Facility to individually lock and remote controller buttons associated with unit control.
RUN/FAULT Outputs. Readback of all indoor and outdoor unit fault codes and unit run status.
DUTY/STANDBY. Run/standby rotation with run on fault and programmable rotation period.
MODBUS. RS485 Modbus Control and Monitoring Functions.
Warnings and Cautions
Do not exceed the specified fault relay ratings
Observe precautions for handling Electrostatic
Sensitive Devices
Ø 5.00
The FDP3-Modbus can be mounted horizontally or vertically.
TCC-NET Network
TCC-NET Terminals A, B connect to the Toshiba TCC-NET remote controller network. The FDP3 is powered from this connection and communicates with the indoor unit on this network.. The FDP3 can be connected together with one
Toshiba remote controller.
INDOOR UNIT
A, B Terminal Block for Remote Controller
TCC-NET
Polarity not important
TCC-NET
A B
LED1
RS485 D-BUS
DB
+
DA
-
GND
LED2
SW1 ON
LED4
1 2 3 4 5 6 7 8
FDP3 Standard BMS Mode
ON
The FDP3 operates in Standard BMS Mode with SW1.1 in the OFF position.
1 2 3 4 5 6 7 8
FDP3 Configuration SwitchesSW1.1-SW1.8
In Standard BMS Mode The FDP3 Inputs S1 to S6 allow individual control of various unit operating parameters. Each input corresponds to a specific unit setting shown in the table to the right. If an input is left unconnected then the corresponding setting will remain at a default value.
S1
S2
S3
S4
S5
S6
Setpoint
Fanspeed
Mode
Louver
On/Off
Lock
The configuration switch SW1.2 changes the inputs
S1 to S6 between Resistance and Voltage modes.
S1
Resistance Mode
S3 S6
S2 S5
S4
S1
S2
Voltage Mode
S3
S5
S6
S4
0V S1 S2 S3 0V S4 S5 S6 0V S1 S2 S3 0V S4 S5 S6
ON
1 2 3 4 5 6 7 8
RESISTANCE MODE
With SW1.2 OFF the inputs S1 to
S6 operate in Resistance Mode, unit operation can be controlled by connecting fixed or variable resistors to inputs S1 to S6.
ON
1 2 3 4 5 6 7 8
VOLTAGE MODE
With SW1.2 ON inputs S1 to S6 operate in Voltage Mode. Voltage ranges between 1V and 10V can be used to modulate each input. This mode is designed for interfacing the
FDP3 to BMS voltage outputs.
Each control input has a defined control range under voltage and resistance mode as outlined in the following tables. Default settings are applied if the input remains unconnected. These are indicated in the table by the symbol .
Resistance kΩ <=0.4
1.1
1.8
2.5
3.2
3.9
4.6
5.4
6.1
6.8
7.5
8.2
8.9
9.6
>200k
Voltage V 1.3
2.0
2.6
3.3
3.9
4.5
5.2
5.8
6.5
7.1
7.8
8.4
9.0
9.7
<1
S1 Setpoint 18 19 20 21 22 23 24 25 26 27 28 29 30 31 21
S2 Fanspeed
AUTO
LOW
MED
HIGH
HIGH
HIGH
HIGH
AUTO
S3 Mode
AUTO
HEAT
FAN
COOL
DRY
DRY
DRY
AUTO
S4 Louvre
Stop
Swing
0 Degree
15 Degree
45 Degree
75 Degree
90 Degree
Swing
S5 On/Off
OFF
ON
Resistance kΩ
>5.Ω
<1kΩ
Voltage V
<3.5V
>6.5V
S6 Lock
All
S1,S3,S5
S3,S5
S5
Local
Unlock
Unlock
Unlock
Resistance kΩ
<=1.1kΩ
2.2kΩ
3.3kΩ
4.7kΩ
6.8kΩ
9.6kΩ
15kΩ
>200kΩ
Voltage V
1 - 1.75V
3.25V
4.75V
6.25V
7.75V
9.25V
10.00V
<1.00
FDP3 Standard Operation Inputs
When S6 is NOT operating in Local mode the inputs S1 to S5 allow control of the A/C unit operating parameters. The lock status of the input determines if the corresponding remote controller buttons are locked or unlocked.
If an input is locked then the remote controller button is locked and the input value on S1 to S5 will always be written to the unit. In the locked mode the input will also override central controller operation.
If the input is not locked then the input will operate in a last-touched mode with the remote controller in which updates from the input will only be written when a change occurs.
When input S6 is configured in Local mode then the A/C unit operates standalone and inputs S1 to S5 will not affect the operation of the unit.
FDP3 Standard Operation Outputs
The FDP3 has two output relays (maximum rating 1A 24VDC, / 30VAC). The relays outputs are configured as follows:
Output Name
R1
R2
Run
Fault
Operation
A/C Unit Operation
Closed on any unit fault
Using advanced configuration it is possible to change relay functionality and invert operation.
FDP3 Group Control
Connecting additional FDP3 controllers as slaves allows larger groups of units to be controlled from the master. Setting SW1.3 ON on FDP3 Address 0
(Master) causes the settings of the Master to be written to Addresses 1 to 15
(Slaves). The position of SW1.3 on the Slaves determines if the Slave operate in Locally Locked or Centrally Locked mode.
Note that in Group Control mode it is not possible to attach an external Modbus
Master to the network.
Local Locked Group Control
A Slave FDP3 configured with SW1.3 OFF will operate in Locked Slave Group
Control. Input S6 on each FDP3 determines the local Lock state of the device.
When inputs are locked then the local S1 to S5 input values will be written to the A/C units and the corresponding remote controller buttons will be locked.
If an input is configured as Last Touched mode by input S6 then the unit operation is determined by the Remote Controller, or a change to an Input on either the Slave or the Master device.
18
ADDRESS 0
ON
1 2 3 4 5 6 7 8
Address 0 (MASTER)
18
ADDRESS 1..15
ON
D-BUS
16 FDP3 max
1 2 3 4 5 6 7 8
Address 1..15
(SLAVE)
8 Units max
8 Units max
Central Locked Group Control
A Slave FDP3 configured with SW1.3 ON will operate in Locked Master Group
Control. Input S6 on each FDP3 determines the local Lock state of the device.
When inputs are locked then the control value from the Group Master will be written to the A/C units and the corresponding remote controller button will be locked.
If an input is configured as Last Touched mode by input S6 then the unit operation is determined by the Remote Controller, or a change to an Input on either the Slave or the Master device.
18
8 Units max
ADDRESS 0
ON
1 2 3 4 5 6 7 8
Address 0 (MASTER)
18
ADDRESS 1..15
ON
D-BUS
16 FDP3 max
1 2 3 4 5 6 7 8
Address 1..15
(SLAVE)
Local Restore BMS Mode SW1.4
SW1.4 enables Local Restore Mode on master and slave FDP3. In this mode the remote controller settings are saved when the FDP2 enters central/locked operation. When the remote controller returns to local operation the saved settings are restored to the remote controller.
Local Restore operation is shown in the following figure.
ON
1 2 3 4 5 6 7 8
User Restore
18
8 Units max
LOCAL CENTRAL
Save User Settings
CENTRAL CONTROL
Use FDP2 Settings
CENTRAL LOCAL
Restore User Settings
Preset Operating Modes
ON
With SW1.1 set to ON configures the FDP3 to operate in a number of preset modes*. In this mode of operation the inputs S1 to S6 are not used for control.
1 2 3 4 5 6 7 8
FDP3 Configuration SwitchesSW1.1-SW1.8
Unlocked Operation
8 Units max
ON
1 2 3 4 5 6 7 8
Locked Cooling Preset
18
8 Units max
ON
1 2 3 4 5 6 7 8
Locked Auto Preset
21
8 Units max
ON
1 2 3 4 5 6 7 8
Locked Heating Preset
23
8 Units max
ON
1 2 3 4 5 6 7 8
*Units that do not support specific modes such as cooling-only units will operate in fan-only in unsupported modes.
Duty/Standby Operation
ON
Duty/Standby will alternately run two systems on alternating run/standby rotation. If a fault occurs on either system then both systems are switched on until the fault is cleared. The
1 2 3 4 5 6 7 8
FDP3 Configuration SwitchesSW1.1-SW1.8
default rotation period is 24 hours, alternative rotation periods can be selected by linking inputs S1 to S6.
Duty/Standby is achieved using two FDP3 devices, one with Address 0 and one with Address 1 with a D-BUS connection between the two. SW1.1 and
SW1.4 must be switched ON on both devices to enable the operation.
21
8 Units max
ON
1 2 3 4 5 6 7 8
Address 0 (MASTER)
DUTY/STANDBY 1 Day 1 Day 1 Day FAULT
21
D-BUS
8 Units max
ON
1 2 3 4 5 6 7 8
Address 1 (SLAVE)
The MASTER FDP3 can be configured using SW1.2 and SW1.3 to operate using one of the three preset modes Heat, Cool or Auto. Alternatively the
MASTER can be configured for local control, in which case the remote controller attached to the MASTER FDP3 can be used to set the operating settings during master duty.
Duty/Standby Rotation Period
The default rotation period is 1 Day. Alternative rotation periods can be selected by linking the FDP3 inputs as shown in the table below. Note that the
1 Minute rotation period is for commissioning purposes only and should not be used for long term unit operation.
0V S1 S2
Configuration
S3 0V S4 S5 S6
Rotation Period
1 Day
(default)
0V S1 S2 S3 0V S4 S5 S6
1 Minute
(temporary operation only)
0V S1 S2 S3 0V S4 S5 S6
0V S1 S2 S3 0V S4 S5 S6
0V S1 S2 S3 0V S4 S5 S6
0V S1 S2 S3 0V S4 S5 S6
0V S1 S2 S3 0V S4 S5 S6
60 Minute
6 Hour
2 Days
1 Week
2 Week
FDP3 Networking
ADDRESSING
The FDP3 has the facility to create control groups using multiple FDP3s connected together on the RS485 D-Bus network. In standard configuration up to 16 FDP3 devices can be connected together. Each
FDP3 is assigned a D-Bus address using the configuration switches
SW1.5 to SW1.8. Unit addresses are shown below.
ON
ADDRESS 0
ON
ADDRESS 1
ON
ADDRESS 2
ON
ADDRESS 3
1 2 3 4 5 6 7 8
ON
ADDRESS 4
1 2 3 4 5 6 7 8
ON
ADDRESS 8
1 2 3 4 5 6 7 8
ON
ADDRESS 5
1 2 3 4 5 6 7 8
ON
ADDRESS 9
1 2 3 4 5 6 7 8
ON
ADDRESS 6
1 2 3 4 5 6 7 8
ADDRESS 10
ON
1 2 3 4 5 6 7 8
ON
ADDRESS 7
1 2 3 4 5 6 7 8
ADDRESS 11
ON
1 2 3 4 5 6 7 8
ADDRESS 12
ON
1 2 3 4 5 6 7 8
ON
ADDRESS 13
1 2 3 4 5 6 7 8
ADDRESS 14
ON
1 2 3 4 5 6 7 8
ADDRESS 15
ON
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
Address 0 is the FDP3 MASTER address. Address 1 to 15 are FDP3
SLAVE addresses.
NETWORK INSTALLATION
The RS485 D-Bus network requires a twisted pair cable connecting terminals DB(+) and DA(-) on each FDP3 as shown below. Terminal DB must be connected to all other DB terminals. Terminal DA must be connected to all other DA terminals. In addition the common terminal
GND on all devices must be connected together. If a shielded cable is used then the shield can be used for this purpose. The network must be installed as a daisy-chained point-to-point Bus configuration, Star and
Ring connections must NOT be used.
ADDRESS 0
ON
1 2 3 4 5 6 7 8
RS485 D-BUS
ADDRESS 1
ON
1 2 3 4 5 6 7 8
RS485 D-BUS
DB(+)
DA(-)
GND
DB(+)
DA(-)
GND
SPECIFICATION
Use stranded 24awg shielded or unshielded twisted pair to Cat3, Cat4 or Cat5 specification. Use a twisted pair for connections DB,DA and an extra core for connection GND.
NETWORK LENGTH
Standard installation for total network distances of up to 500m can be achieved following the basic daisy-chaining method showed in the above diagram. The network can be extended further using RS485 repeaters.
Modbus Operation
CONTROL
The FDP3 can be operated from both the hard-wired inputs and Modbus register commands if input S6 is open-circuit. Under this mode of operation control updates will be sent if a change is made to either a Modbus register or a wired input. All control registers are analogue Holding Registers
Name Range Holding
Register
H0001
H0002
H0003
H0004
H0005
Setpoint
Fanspeed
Mode
Louvre
OnOff
10..40
0..3 (0:Auto, 1:Low, 2:Medium, 3: High)
0..4 (0:Auto, 1:Heat, 2:Fan, 3:Cool, 4:Dry)
1..7 (1:Swing, 2: 0 Degrees, 3: 20 Degrees, 4:45 Degreees,
5:70 Degrees, 6:90 Degrees )
0..1 (0:Off, 1:On)
Holding
Register
Name Lock Mode*
0010
0011
0012
All Lock
Setpoint Lock
Fanspeed Lock
0:LastTouch,1:Central,2:Local,3:OnChange
0:LastTouch,1:Central,2:Local,3:OnChange
0:LastTouch,1:Central,2:Local,3:OnChange
0013
0014
Mode Lock
Louvre Lock
0:LastTouch,1:Central,2:Local,3:OnChange
0:LastTouch,1:Central,2:Local,3:OnChange
0015 OnOff Lock 0:LastTouch,1:Central,2:Local,3:OnChange
*Last Touch updates are written to the A/C on every register write. On Change updates are only sent if the value written changes. Central locks the corresponding RC button. Local unlocks the RC button and prevents any updates from the FDP3.
MONITORING
Unit data is available for each of the indoor units on the TCC-NET network. All readback data is available in analogue Input Registers. Input registers are numbered using the indoor unit number x 100 added to an offset relating to a specific feature. Group data is available as unit 0.
Group*
0020
0021
Unit 1
0120
0121
Unit 2
0220
0221
...
...
...
Unit16
1620
1621
Name
Unit Exists
Is Fault
Range
0..1
0..1
0022 0122 0222 ...
1622 Fault Code 0..65535
0023 0123 0223 ...
1623 Return Air Temp Degrees C x 100
* Group Unit Exists returns the number of units found. Group Fault Code returns the fault code of the first unit in fault. Group Return Air Temp returns the average unit temperature.
FAULT CODES
Fault codes are encoded using a standard table to allow standard Toshiba fault codes to be generated from the readback value. The no fault value is 255.
KEYPAD LOCK
When the keypad is locked using input S6 then Modbus commands will not change the lock state but unit settings can still be adjusted. When the S6 input is set to unlock the keypad then Modbus commands can change the lock state.
Additional Modbus registers and more detailed Modbus engineering instructions are available in the FDP3-Modbus datasheet. available from
http://www.realtime-controls.co.uk/FDP3. A full list of fault codes is also available from this link.
R
G
R
G
LED Functionality
Normal Operation
R
G
Key:
OFF
Power-Up sequence
Factory Configuration
Power-Up sequence
Custom Configuration
TCC-NET Search. After power-up and during unit configuration
FLASHING ON
R
G
R
G
No Fault State
Unit Fault
Error Conditions
R
G
R
G
R
G
Device configuration error
AC Unit Missing
RS485 Communications Timeout
S1 to S6 cables should be 0.5 to 1.0 mm2 multi-stranded screened twisted pair. The screen should be earthed at one end only. The maximum distance from the FDP2 to the input source is 200m.
Resistances should be within +/-250 ohms of the quoted value. Open circuit is R>200k Ω .
Voltages should be within +/- 0.25V of the quoted value. Open circuit for V<1V.
Under open circuit conditions the input will revert to its default value.
S1 in resistance mode is designed to be operated using a linear 10k Ω variable resistance.
It is recommended that volt-free contacts or switch mechanisms connected to S4, S5 and S6 have gold plated contacts to ensure a low resistance circuit when the switch is made.
Functional Specification
Electrical
Supply 15V-24V DC, 50mA
Environmental
Temperature
Power <1.2VA
Storage
Operation
-10°C to 50°C
0°C to 50°C
1A, 24VAC max
1A, 30VDC max
Relay
Mechanical
Dimensions
Mounting
Casing
Weight
Connectors
H100 x W100 x D22 mm
2 / 4 screw
Zinc coated mild steel
120g
Rising clamp to 0.75mm
2 cable
Humidity
Protection
EMC Emissions
EMC Immunity
Inputs
0-90% RH non-condensing
IP30
EN61000-6-1
EN61000-6-3
Voltage Mode
Resistance Mode
S1..S6 0..10VDC <1mA
S1..S6 5V, 1mA
FDP3 Datasheet Issue 1.02.02 © RealTime Control Systems Limited, 2010
