Abus ABUCompact GM2 - E L I M I N a T I N G E R R O R S O N T H E C H a I N H O I S

Ma in t e n an c e | Eli m i na t i n g e rro r s on the c hai n ho i st
91
ELIMINATING ERRORS ON THE CHAIN HOIST
If the chain hoist is not working or functions other than as expected, a malfunction of the chain hoist may be the
cause.
Fault Possible cause Eliminating the fault
The chain hoist does not lift or lower;
hoist motor does not hum when a
button on the pendant control is
pressed.
No mains voltage. Check the power line. See
“Connecting the chain hoist”,
page 18.
Power line not correct. Check the rotary field and phases.
See “Connecting the chain hoist”,
page 18.
Emergency stop button pressed. Unlock the emergency stop button.
Main contactor is defective. Check the main contactor.
With electronic control: No control
voltage.
Check the fuse on the supply PCB.
Fuse is defective. Check the fuse.
Bayonet couplings of the connection
cable or control cable are not
properly inserted.
Insert the bayonet couplings. See
“Connecting the chain hoist”,
page 18.
Broken wire in the control cable. Replace the control cable.
Pendant control is defective. Replace the pendant control.
For hoist limit switch: Switching
point is incorrectly set.
Reset the switching point.
The chain hoist does not lift or low
er;
hoist motor hums when a button on
the pendant control is pressed.
Fuse is defective. Check the fuse.
Power line is defective (2-phase
running).
Check the power line. See
“Connecting the chain hoist”,
page 18.
The couplings of the hoist motor
and brake are interchanged on the
control.
Connect the hoist motor and brake
correctly. See “Wiring diagrams”,
page 93.
With electronic control: control is
defective.
Replace the control.
With direct control: pendant control
is defective.
Replace the control.
Hoist motor starts up sluggishly. Brake does not release. Check the brake.
Brake does not release. Brake electronics are defective. Measure the voltage on the brake. It
must be approximately 90 V DC. If it
is not, replace the electronics for the
brake.
Brake coil in the magnet body is
defective.
Measure the electrical continuity. If
the brake coil has no continuity,
replace the magnet body.