Functions and device responses
5.12 Overload protection
Elevator door drive AT12
Manual, 02/2012, A2B00086683A-04
19
5.12 Overload protection
If the drive motor is subjected to severe strain by
DOOR OPEN
and
DOOR CLOSE
commands repeated in quick succession, the hold-open time is automatically increased. The
next closing movement is delayed, even if a
DOOR CLOSE
command is present, the LED
flashes red 4 times.
This function prevents the motor from overheating.
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