Fujitsu ASYG12KMCDN Design & Technical Manual page 29

¢ Control output function
• Operation/Stop status
Rotary SW on External
input and output PCB
1
B
C
D
The output is low when the unit is stopped.
• Error status
Rotary SW on External
input and output PCB
1
C
D
The output is ON when an error is generated for the indoor unit.
• Indoor unit fan operation status
Rotary SW on External
input and output PCB
1
2
B
D
Output signal
On
Low → High
Off
High → Low
8-4. Details of function
External output
External input and output PCB
Operation
Indoor unit
Stop
On
CN310
Off
External output
External input and output PCB
Error
Indoor unit
Normal
On
CN311―312
Off
External output
External input and output PCB
The indoor unit fan is operating.
The fan is stopped or during cold air prevention.
During thermostat off when in dry mode operation.
Fan run
Indoor unit
Fan stop
On
CN311―312
Off
CN310
CN311
CN312
CN312
CN311
Condition
- 25 -
Output
Command
signal
Off → On Operation
On → Off Stop
Output
Command
signal
Off → On Error
On → Off Normal
Off → On Error
On → Off Normal
Output
Command
signal
Off → On Fan run
On → Off Fan stop
Off → On Fan run
On → Off Fan stop
8. External input and output