PHI D-4990, Руководство пользователя, Страница: 32 / 66

The ON/OFF switch, that is used to cut off or supply 110VAC to the door, is
similar to the on/off wall switch you use to turn the lights on and off in your
home. We take incoming line voltage and run the
Ground and Neutral lines
directly to the control box. We also take the neutral and run it to the On/Off
switch LED. We take the Hot wire from the line and run it to the switch and run a
lead from the switch to the control. This way we can cut off the voltage to the
door locally to work on or shut the door down if needed. The neutral wire to the
switch will illuminate the LED when the switch is bypassing the hot wire from
the line to the control. We can then see if the power is on by looking at the light.
HOT
NEUTRAL
GROUND
110VAC LINE VOLTAGE
Control Box
ON OFF
LOAD VOLTAGE
HOT
NEUTRAL
NOTE:
It is always safer to shut the
incoming power off at the breaker when
working on any operator, if possible!
ON / OFF SWITCH