MITSUBISHI ELECTRIC GB-50A - Manual (Page 9)

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*External signal input requires the external I/O adapter (Model: PAC-YG10HA) sold separately.
4-1 External input function
(1) The function of external input
• Emergency stop/normal operation, ON/OFF, local remote control prohibit/permit can be controlled for
conditioners being controlled with a non-voltage contact signal input from an external input source.
(the dip switches)
• The condition of external input signal is displayed on the operation setting screen for each group.
Table 4-1. Function settings of external input
No. Function of external input signal Remarks
1 External input signal not used -------------------------------------------------------------
2 Perform emergency stop with level signal During emergency stop, only ON/OFF of the
central controller and local remote controller’s
operation will be prohibit.
3 Perform ON/OFF operation with level signal Only the ON/OFF operation of the central controller
and the local remote controller will be prohibit.
4 Perform ON/OFF operation, prohibit/permit
operation with pulse signal Set the pulse width while the contact is ON to 0.5 to
1.0 second.
*Settings for these functions can be set with the Initial Setting Web or Initial Setting Tool.
(2) Level signal and pulse signal
(3) Specification of external input interface
CN2 Lead Wire
Emergency stop/normal
level signal
ON/OFF level signal ON/OFF, prohibit/permit
pulse signal
No.5 Orange Emergency stop/normal
input
ON/OFF input ON input
No.6 Yellow Not used Not used OFF input
No.7 Blue Not used Not used Local remote controller
prohibit input
No.8 Gray Not used Not used Local remote controller
permit input
No.9 Red Common (DC12V or DC24V)
4 External input/output function