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2. External signal output function
* External signal output requires the external I/O adapter (Model: PAC-YG10HA) sold separately.
Some parts, such as 12V DC or 24V DC power supply and relays, must be field-supplied.
(1) External output
When one or more air conditioners are operating, the “ON” signal will be output, and if a malfunction occurs
in one or more air conditioners, the “Malfunction” signal will be shown.
(2) External output specification
(3) Recommended circuit example
1. Each element will turn on while ON operation or a malfunction occurs.
2. The connection cable can be extended up to 32 ft (10m).
3. The relays, lamps, diodes and extension cables, etc, must be prepared separately at the site.
CN2
Lead wire
Description of each terminal
No. 1
Green
Common (External ground)
No. 2
Black
ON/OFF
No. 3
Brown
Malfunction/normal
1. “ON” signal and “Malfunction”
signal will both be shown.
This unit
Brown
Black
Green
Max. 10m
(32 ft)
Diode (*2)
Power (*1)
Supply
L1: Run display lamp
L2: Malfunction display lamp
Use Z1 and Z2 relays having the following specifications.
Operation coil
Rated voltage
: 12V DC, 24V DC
Power consumption
: 0.9W or less
(*1) Include a power supply separately according to the
relay being used. (12V DC or 24V DC)
(*2) Always insert a diode on both ends the relay coil.
