DORMA •
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DORMA
Troubleshooting
See also Commissioning
I
Adjustment
I
Functional testing.
In the event of faults during start-up or operation, first check the following points;
Mains power available?
Emergency stop pushbutton unlatched?
Program switch in the correct position?
Light barrier transmission paths clear and light barriers clean?
Door obstructed?
Door panels easy to move (counter-roliers, floor guides)?
Fuse OK?
All external activators, emergency stop switches, program switches and locks correctly wired?
All plugged connections firmly in place?
A\
For connection of the interconnecting cable, completely open the corresponding terminal
by
unwinding the
ill
screw in a counter-clockwise direction. Insert the wire and tighten the screw.
For installation work, remove plugs 11/12113 in order to disconnect the control unit.
If the fault should not be remedied by any of the above, use the hand terminal (HO) for fault analysis. Further aids
are provided by the diagnostics display on the expansion module and the information for fault rectification given in
the following table.
---
Fault Possible cause Remedy
Door operates jerkily and in an Plug connectors Correctly fit the plug connectors or
uncontrolled manner. Cable on incremental encoder swap over the wires.
~~
Incremental encoder mode: on Check the incremental encoder
motorlreturn pulley
mode with the HT.
0""'
on motor
1 ""' on the return pulley
After the "4-hourly self-test", the Back-up battery not fully recharged,
Check back-up battery voltage.
door remains stationary in
or now spent
Check operating hours with HT.
OPEN - posltion. Change back-up battery:
(only in the case of control units
with an expansion module)
Door remains open in all program
Light barriers (LS) Check light barrier function by
switch settings
observing the LEOs on EM 4 and HT
Emergency stop switch Jumper the inputs at the connector.
If this rectifies the fault, check the
emergency stop switch and replace
as necessary; test with HT.
Door does not open in the program
Activator internal/external Remove connector for activator, and
switch settings "EXIT ONLY" and
jumper input. If this rectifies the
'PARTIAL OPENING".
fault, check the 24V power supply.
If also OK, check the activator and
replace as necessary.
Door will not open in program switch
Emergency stop switch Jumper inputs at the connector. If
setting 'AUTOMATIC" and
this rectifies the fault, replace the
"PERMANENT OPEN"
emergency stop switch
Door opens in program switch
Adjust or replace program switch.
setting "OFF"
Door stays open
Short~circuit"
Disconnect control unit from mains
(Servicedisplay is off)
power and conned it again after
approx 3 seconds.
&,
*
Response of control units in the event of a short circuit.
• The 24V power supply for radar detectors, electro. mechanical locks and the motor connection
are of short-circuit-proof design.
In the event of a short circuit, the power supply unit interrupts all secondary voltages and the operating status
display is extinguished. After rectification of the short circuit, the power supply unit does not automatically
switch on again! Remove pains plug, wait approx. 3 seconds and then re-insert mains plug.
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