Novoferm N-423 Manual Del Usario página 44

Installation
Checking force limit
1. Place an force gauge or obstruction (e.g. the operator'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.
Check and document the force limits every month.
Note:
If the obstruction is not detected or if the force values are not complied with,
the force limit needs to be set according to the section "Menu 5 + Menu 6:
Force limitation for Open and Close" on page 45.
Delete force learning cycle
Note: The force learning cycle always starts from the end position CLOSE.
The force learning cycle must be repeated after each replacement of the
garage door springs:
Proceed to Menu 5 (see special settings) and keep the programming button
(PROG button) (D) pressed for 3 seconds. The display shows "0".
Complete the process as described in the "Force learning cycle" on page 43.
44 N-423