Troubleshooting - Tractel tirak L 500 P Manuel D'installation Et De Manutention Original

17

Troubleshooting

DANGER!
Risk of being injured by falling objects!
The load lifting equipment may tip over if it jams!
– Stop the hoist immediately.
– Determine the cause and eliminate the fault.
Fault
Cause
The motor starts but the rope does not move.
Rope jam in the hoist due to damaged or incorrect rope.
Obstructed rope exit.
The load has jammed or is tied in place.
Hoist operation is not possible.
Control unit not switched on.
EMERGENCY-STOP button pressed.
EMERGENCY limit switch reached.
EMERGENCY limit switch is defective.
The hand crank is in the operating position or the 'Manual operation'
switch is faulty. (for hoists with manual emergency operation).
Disconnected mains supply.
Power supply cable between the mains connection and the control unit
disconnected.
Power supply connected incorrectly or the neutral conductor is missing.
Protective cut-out tripped after overheating due to insufficient motor
cooling.
Protective cut-out tripped due to overheating caused by the voltage being
too high or too low.
Two poles in the power supply cable are switched. The built-in reverse
polarity protection locks out the control unit.
The brake does not open (no click when switching on / off) because the
power supply, brake coil, or rectifier are defective.
The brake does not open (no click when switching on / off) because the
brake rotor is worn.
G919.6 - 07/2012
Elimination
– Support the load (e.g. with a wedge clamp or lever hoist).
– Cut the rope in front of and behind the hoist.
– Send the hoist to be repaired.
– When available, install a new rope in replacement hoist.
– Carefully free or untie the load.
– Check the rope, rigging and load lifting equipment for their operating
safety.
– Switch on control unit.
– Unlock the EMERGENCY-STOP button.
– Move downwards in emergency mode until the limit switch is free.
– Have an electrician check or replace the limit switch.
– Move the hand crank into the idle position.
– Have an electrician check or replace the 'Manual operation' switch.
– Clarify the cause and eliminate the fault.
– Check all cables and connections and repair as necessary.
– Have the connection repaired by an electrician.
– If necessary, have it modified by the manufacturer.
– Clean motor cover.
– Have an electrician measure the voltage and power consumption
when subjected to load.
– Increase the wire cross-section if necessary.
– Turn the phase reverser in the plug by 180°, see Fig. 13.
– Have the power supply, brake coil and rectifier checked by an
electrician and repair or replace.
– Send the hoist to the manufacturer for repairs or hand over to a
specialist hoist workshop.
Installation and operating manual
EN-23