Tractel tirak L 500 P Series, Original Assembly And Operating Instructions Manual

Page: 46 / 208

Installation and operating manual
EN-46 G1035.4 – 01/2019
7.8 Troubleshooting
Trouble Cause Elimination
The motor runs but the load does not move. The load has jammed or is tied in place.
– Carefully free or untie the load.
– Check the wire rope, suspension rig and
load lifting equipment for their operating
safety.
Rope jam in the hoist due to damaged or
incorrect wire rope.
Obstructed rope exit
– Support the load (e.g. with a wedge
clamp or lever hoist).
– Cut the wire rope in front of and behind
the hoist.
– Send the hoist to be repaired.
– When available, install a new wire rope in
replacement hoist.
The motor switches off during operation. No power supply.
– Check for power supply.
Overheating caused by inadequate cooling.
– Provide sufficient cooling.
Overheating due to the supply voltage being
too high or too low.
– Have an electrician measure the voltage
and power consumption when subjected
to load.
Ambient temperature over 40 °C or operation
at altitudes over 1000 m above sea level.
– Make sure that there are sufficient breaks
in operation.
Hoist operation is not possible. Disconnected mains supply.
– Try to reconnect the main supply.
Power supply cable between the mains
connection and the control unit disconnected.
– Check all cables and connections and
reconnect as necessary.
Control unit not switched on.
– Switch on control unit.
EMERGENCY stop button pressed.
– Unlock the EMERGENCY stop button.
Ultimate lifting limit switch reached.
– Move downwards in emergency mode
until the limit switch is free.
Ultimate lifting limit switch is defective.
– Have an electrician check or replace the
limit switch.
The hand crank is in the operating position or
the 'Manual operation' switch is faulty (for
hoists with manual emergency operation).
– Move the hand crank into the idle
position.
– Have an electrician check or replace the
'Manual operation' switch.
Power supply cable between the mains
connection and the control unit disconnected.
– Check all cables and connections and
repair as necessary.
Power supply connected incorrectly or the
neutral conductor is missing.
– Have the connection repaired by an
electrician.
– If necessary, have it modified by the
manufacturer.
Protective cut-out tripped after overheating due
to insufficient motor cooling.
– Clean motor cover.
Protective cut-out tripped due to overheating
caused by the voltage being too high or too
low.
– Have an electrician measure the voltage
and power consumption when subjected
to load.
– Increase the wire cross-section if
necessary.
Two poles in the power supply cable are
switched. The built-in reverse polarity
protection locks out the control unit.
– Turn the phase reverser in the plug by
180°, see Illu. 22.