Novoferm N-423 Manual Del Usuario página 65

4.8.7 Checking the force limits
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NOTICE
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F< 400N
50 mm
Fig. 16: Checking the force limits
1. Place a force gauge or a suitable obstruction (e.g. the drive's cardboard box)
in the closing area of the door.
2. Close the garage door. The garage door moves to the end position CLOSE.
When the garage door reaches the obstruction, the garage door must stop
and then move back to the end position OPEN.
3. If the door can lift persons (e.g. openings greater than 50 mm or treads), the
force limiting unit must be checked in the opening direction: For additional
load of the door with 20 kg of mass, the drive has to stop.
If the obstruction is not detected or if the force values are not com-
NOTICE
plied with, the force limit needs to be set according to chapter
"Menu 5 + Menu 6: Force limits for opening and closing".
The end positions need to be set again after each replacement of the garage door
springs (see Menu 3 + Menu 4).
After completing the force learning cycles, the force limits need
to be checked.
The drive must be checked once a month.
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