Novoferm N-423 Bedienungsanleitung Seite 57

4.6 Connecting the garage door drive to electrical power and
controls
Hazardous voltage
DANGER
Fatal electric shock when touching live parts.
Pull out the main plug from the mains socket before you open the
cover of the drive head.
Do not connect any live leads. Only connect potential-free buttons
and potential-free relay outputs.
After connecting all cables, close the cover of the drive head.
Danger by optical radiation!
WARNING
Sight can be severely restricted for a short time by looking directly
at a LED. This can result in serious injuries.
Do not look directly at an LED.
To reach the connection terminals, open the service flap at the drive head.
E F G H I
Fig. 8: Opening the drive head cover
J
P
N M L K
EN - 55