8
Troubleshooting
Error
State
E02
Loading bridge not
functioning
E11
Loading bridge not
functioning
F01
No door / loading
bridge movements
F2
No response
F3
F4
F5
Reset has been
executed
F09
Hydraulic motor
switches off
F11
Loading bridge can
no longer be
operated.
F14
Interruption at valve 1 Valve 1: check supply line.
F17
Loading bridge is not
responding.
F22
Brief operational
interruption
F25
No response
F26
No response
F28
No response to start
command
F31
No response
F40
Extended control
does not respond
F41
Extended control
does not respond
F43
Extended control
does not respond
F73
Loading bridge not
functioning
F74
Loading bridge not
functioning
L
The access to the
menu was inhibited
by the authorized
specialist dealer.
Diagnosed cause
Safety circuit J4.3/4 triggered.
Input circuit interrupted by
external device.
Safety circuit J4.1/2 triggered,
input circuit interrupted by
external device.
Faulty mains voltage. Check
rotating field, change rotation
direction.
Error occurred during self-testing.
Replace control.
Check mains environment with
regard to electrical disturbance
sources, increase distance of
motor cable and / or signal lines
to mains cables, actuate start
button on control for normal
operation.
The power control of the motor
pump has tripped. Check menu
setting 10.
Check loading bridge for ease of
motion.
Valve relay fault on valve 1. Valve
current too high. Check valve for
short circuit.
Fault on hydraulic motor control.
Runtime monitoring hydraulic
motor. Allow hydraulic motor to
cool down for approx. 20 min.
Internal test or membrane keypad
erroneous. Exchange membrane
keypad or control.
Internal test external button /
switch failed.
Voltage supply error. Check
mains connection. Check
peripherals for short circuit.
Button actuated while switching
on mains power. Re-actuate main
switch. Check membrane keys
and J1.
24 V failed. Check connections
on extended control.
Error occurred during self-testing.
Replace extended control.
No connection.
Testing of input J4 1/2 failed.
Switch control off and on, replace
control, if necessary.
Testing of input J4 3/4 failed.
Switch control off and on, replace
control, if necessary.
Contact specialist dealer. Menu
can only be unlocked by means
of the service tool.
Error
State
Lo
Control has been
inhibited.
U
The access to the
menu was unlocked
by the authorized
specialist dealer.
If the safety circuit is
interrupted, the
warning indicator is
illuminated, see
troubleshooting.
The warning indicator
flashes upon
switching the main
switch on and off.
9
Maintenance
Tasks to be performed before starting maintenance
Hazardous voltage!
DANGER
Fatal electric shock when touching live parts. Ob-
serve the following safety rules when working on
the electrical system:
•
•
•
•
NOTICE
NOTICE
For your safety, the loading bridge must be
checked before initial use and as needed – but at
least once a year. The check can be carried out
by a person with the corresponding qualification
certificate or by a specialist company.
Service indicator
If the control determines the need to carry out an inspection, the
service indicator in the display lights up. Inform a specialist com-
pany.
10
Disassembly
Disassembly is carried out in reverse order of the assembly in-
structions in the Installation chapter.
HA MS 400V / 230V
Diagnosed cause
Contact specialist dealer. Menu
can only be unlocked by means
of the service tool.
The restart lock is active. Press
the
button or RETURN.
Disconnect from the mains.
Secure against inadvertent switch-on.
Verify de-energised state.
Work on the electrical system may only be
performed by skilled electricians or instruc-
ted persons working under the direction and
supervision of a skilled electrician in accord-
ance with the electrotechnical rules and dir-
ectives.
EN - 19