Applied Control Of Indoor Unit - Toshiba MMF-AP0156H-E (TR) Service Manual

7-6. Applied control of indoor unit

Control system using remote controller interface (TCB-IFCB-4E2)
Wiring and setting
• In the case of group control, the control system functions as long as it is connected to one of the indoor units
(control P.C. board) in the group. If it is desired to access the operation and error statuses of other units,
relevant signals must be brought to it from those units individually.
Control items
(1) Start / Stop input signal
(2) In-operation signa
(3) Error signal Output
Wiring diagram of control system using remote controller interface (TCB-IFCB-4E2)
Input IFCB-4E2: No-voltage ON / OFF serial signal
Output No-voltage contact (in-operation and error indication)
Contact capacity: Max. AC 240 V, 0.5 A
Indoor control P.C. board
Start/Stop input
Remote controller sisabling / ending input
In-operation signal output
Error signal output
Start / stop of unit
Output present while unit in normal operation
present while alarm (e.g. serial communication error or operation of protective
device for indoor / outdoor unit) being activated
1
COM (GND)
2
3
4
COM (+12V) 5
6
CN61
T10
(Yellow)
TCB-IFCB-4E2
1
2
3
4
CN06
1
2
3
4
5
6
CN13
Power supply 220-240V
– 35 –
ON side
Start signal input
OFF side
Stop signal input
COM
In-operation signal output
Error signal output