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External Input And Output Functions; External Input; Emergency Stop Input Mode; On/off Level Signal Input Mode - Mitsubishi Electric PAC-YT34STA Instruction Book

Air conditioning control system.
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6. External input and output functions

When using the external input and output cables provided with the remote controller. (5-wire cable
for input and 4-wire cable for output are provided.)

6-1. External input

6-1-1. Emergency stop input mode

• If an emergency stop signal is input in the external input interface, all air conditioners and
LOSSNAY units being controlled will stop.
This controller, slave system controller and local remote controller operations will be prohibited
until the emergency stop input is cancelled.
NOTE 1. The timer is invalid while this mode is input, and the schedule function will stop.
2. When this mode is cancelled, the timer will be validated, and schedule operation will resume.
The schedule following the current time will be started.

6-1-2. ON/OFF level signal input mode

• If the ON/OFF level signal is input in the external input interface, all air conditioners and
LOSSNAY units being controlled will be turned ON or OFF.
This controller, slave system controller and local remote controller operations will be prohibited
until this mode is cancelled.
"
"
NOTE When this mode is set, ON/OFF operations following the schedule from this controller will not be
executed. (Other schedule settings will be executed.)
" will light up when ON is input.
" will turn OFF when OFF is input.
"TIMER OFF" will flicker.
COLLECTIVE ON/OFF lamp will flicker.
17

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