GFA TS 981 - Overrun Correction; Door Overload Monitor

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FUNCTION DESCRIPTION
Door overload monitor
The door overload monitor recognises that a person is being lifted by the door (hanging on
a handle, etc.) and could be adjusted within Menu item 3.1 with a possibility of two steps of
sensitivity. Adjustment „.1“ sensitive reaction and adjustment „.2“ insensitive reaction
When an overload is detected the door works only Hold-to-run Mode in the UP and DOWN
direction.
The control unit automatically resets to impulse control when a nal limit position has been
reached.
Important!
After programming the force monitoring the door must perform a
complete opening and closing cycle in automatic mode, during which
the system reads the increments to calculate the way.
Important Note!
The overload monitor does not take place against other safety devices e.g.
(safety against entrapment)
The overload monitor is a self-learning system, and checks the system from 5 cm up to ca. 2 m,
slow-occurring changes e.g. spring tension will be automatically recognised and equalized.
Important Note!
To have a trouble-free service the following points must be checked:
- The door must be correctly balanced
- The cable drum diameter should not be less then 160 mm
Environmental inuences e.g. temperature or wind load can cause the
overload monitor to be activated.
Important!
Great variations of temperature during a time when the door is not in
use, could cause a position variation of about 1 cm. This will be reset
automatically after reaching the nal close limit.
Overrun correction
The stopping position of the door can be inuenced by various factors e.g. temperature,
cable extension etc.
To always have the same door stopping position the overrun correction can be activated.
Using Menu item 2.2 the overrun correction can be switched ON or OFF.