Spring pressure brake
The spring pressure brake is fastened onto the free end of the motor shaft. It is protected
against humidity and the intrusion of foreign bodies by means of a protection flap with a
rubber gasket.
The brake torque of 16 Nm is set in the factory and must not be altered. The brake is
closed in a deactivated state by means of the integrated pressure springs.
5.4
Lowering
Actuate the "Lower" pushbutton (see page 79).
▲
Danger of crashing! Watch the end of the rope! The
slack end of the rope has to slide into the machine,
freely without any broken strands.
Stop the lowering motion at least 2 m before the end of
the rope.
6
Malfunctions
Malfunction
Possible cause
Motor does not start
Power supply cable not plugged in
when the pushbutton
is actuated
Extension cable not connected
Extension cable defective
Supply line fuse defective
Emergency off button on control
pendant actuated
Protective motor switch has
responded
Rope is pressed against housing
and limit switch
Other causes
Rotation direction does
Direction of rotation of motor
not correspond to the
incorrect
UP/DOWN keys
68
Remedy
Insert plug
Connect cable
Replace cable
Find out cause, replace fuse
Release button by turning it
After the motor has cooled,
reset using the button on the
control box
Actuate "Lower"
Call electrician, diagram is in
lid of control box
Change over phases
(possibly on the extension
cable)