Mitsubishi Electric Central Controller GB-50A Manuel d'installation télécharger pdf (Page 19)

2. External signal output function

* External signal output requires the external I/O adapter (Model: PAC-YG10HA) sold separately.

(1) External output

When one or more air conditioners are running, 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 specifications

1 “ON” signal and “Malfunction”

signal will both be shown.

(3) Recommended circuit example

Use Z1 and Z2 relays having the following specifications.

Operation coil

Rated voltage : DC12V, DC24V

Power consumption : 09.W or less

(*1) Prepare a power supply separately according to the relay

being used. (DC12V or DC24V)

(*2) Always insert a diode on both ends the relay coil.

1 Each element will turn on while ON operation or a malfunction occurs.

2 The connection cable can be extended up to 10m (32 ft).

3 The relays, lamps, diodes and extension cables, etc, must be prepared separately at the site.

CN2 Lead wire Details of each terminal

No.1 Green Common (External ground)

No.2 Black ON/OFF

No.3 Brown Malfunction/normal

No.9 Red Common (External power supply) (*1)

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Mitsubishi Electric Central Controller GB-50A Manuel d'installation Page 19