belfox Antriebsportal Bedienungsanleitung Seite 61

The pressure of the drive pinion on the gear rack must only be strong enough
to allow the supplied setting gauge to be inserted and removed with slight
resistance between the spirals of the spring.
(For a detailed description of the height adjustment of the drive pinion, see
point 16: Mounting the gear rack)
Drive portal with control unit 47-21-0
The limit switch-off is effected via reed limit switches, which are switched by
permanent magnets on the gear rack.
Drive portal with control unit 47-21-i
The limit switch-off is effected by Hall sensors in the motor and additional path
monitoring of the reference switch.
Since all electrical safety devices are connected to each other in a concealed
manner, the complete drive portal can be quickly and easily disassembled for
powder coating or painting.
Optionally, the drive portal can also be ordered coated.
The drive portal is equipped with the necessary safety devices.
In case of special local conditions, please refer to the "Guidelines for power-
operated doors" for information on any additional application-specific safety
devices.
NOTE
NOTE
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