On/Off, Operation Prohibit/Permit Pulse Input Mode; External Output - Mitsubishi Electric PAC-YT34STA Instruction Book

6-1-3. ON/OFF, operation prohibit/permit pulse input mode

• If the ON/OFF signal is input in the external input interface, all air conditioners and LOSSNAY
units being controlled will be turned ON or OFF.
• If the prohibit/permit signal is input in the external input interface, the slave system controller and
local remote controller operations will be prohibited or permitted.
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NOTE 1. The timer is valid even when this mode is input, and the schedule operation will be executed.
2. The prohibit/permit setting range follows the DIP SW3-5 setting state. Refer to section 8. "Setting the
functions" for details on the DIP switches.

6-2. External output

• The "ON" signal is output when more than one air conditioner is ON, and the "Error Occurrence"
signal is output when an error is occurring in more than one air conditioner.
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" will light up when ON is input.
" will turn OFF when OFF is input.
" will flicker when prohibit is input.
" will turn OFF when permit is input.