Malfunctions – diagnosis – repair
300 Z/ZP 2
90
BL144 GB 2019-11
5.2
Fault table
The following table lists potential malfunctions and the appropriate
remedial action.
Malfunctio
n
Cause
Remedial action
Green control light off
Mains plug disconnected
Connect the mains plug
Mains switch off
Switch on the main switch
Lamp defective
Replace lamp
Phase failure
Measure the phases
Incorrect phase sequence
Correct the phase sequence on
the phase sequence monitor
Travelling cable unplugged
Plug in the trailing cable
Fuses in the ground station
switch box not OK
Check/correction
Green control light
lights up
, platform does not move
EMERGENCY STOP
button (at
a control point) pressed
Unlock the
EMERGENCY STOP
button
Loading door/ramp open
Close loading door/ramp
Barrier with loading ramp open
Close barrier with loading ramp
Assembly guard plate open
Attach assembly guard plate at
the top
Assembly plank (if fitted) open
Close the assembly plank and
engage safety hook twice
EMERGENCY LIMIT
limit
switch activated
Refer to platform moved too
high/too low
Base enclosure barrier / sliding
door open (option)
Close the base enclosure
barrier / sliding door
Safety gear engaged
Release safety gear (see
chapter 5.3.5 Safety gear has
Key switch on the platform
control switched to the incorrect
operating mode
Activate control using key
switch
Red control light lights up or pulsing signal tone sounds.
Overload protection has
triggered
Reduce the load
Platform only moves upwards
Is the
DOWN
limit switch
functioning properly
Check/replace the
DOWN
limit
switch