Table of Contents
Advertisement
5-6. Applied control of indoor unit
Control system using remote controller interface (TCB-IFCB4E2)
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 Start / stop of unit
(2) In-operation signal
(3) Error signal
▼ Wiring diagram of control system using remote controller interface (TCB-IFCB4E2)
Input
IFCB4E2: 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 disabling / enabling input
In-operation signal output
Error signal output
Output present while unit in normal operation
Output present while alarm (e.g. serial communication error or operation of protective
device for indoor / outdoor unit) being activated
COM (GND)
COM (+12V)
(yellow)
Power source 220-240 V
51
ON side
Start signal input
OFF side
Stop signal input
COM
In-operation signal output
Error signal output
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
