7-5.External input/output specifications
27
(1) Input/output specifications
Function
Usage
Signals
Function
Usage
Signal
Input
Start/stop
Turning
ON/OFF
the indoor
unit
· Pulse [Factory setting: Dip SW1-9 ON]
(a-contact with voltage/without
voltage)
✻
1
<With voltage>
Power Source: DC12~24V
Electrical Current:
Approximately 10mA (DC12V)
<Standard Pulse>
Sending a
command
to perform
dehumidifi-
cation with
priority
Level
Refer to the wiring diagram
<Dehumidification command> shown
on the next page.
· Level [Dip SW1-9 OFF]
Output
No.1
Operation
Status
Obtaining signals indicating
operation status of indoor units
in each refrigerant circuit.
Relay a-contact
output
DC 30V or
AC 100V/200V
Standard Current :
1A
Minimum Current :
1mA
No. 1
Error Status
Obtaining signals indicating
error status of indoor units in
each refrigerant circuit.
No. 2
Operation
Status
Obtaining signals indicating
operation status of indoor units
in each refrigerant circuit.
No. 2
Error Status
✻
✻
✻
20HP only
Obtaining signals indicating
error status of indoor units in
each refrigerant circuit.
over 200ms
(Pulse powering time)
over 200ms
(Pulse interval)
✻
1 Use minute-current contact (DC12V 1mA)
Dehumidi-
fication
signal