Dorma ED400 - Opener wont learn; Opener wont open, manual opening is OK; Opener keeps door open at Back-Stop; Opener pushes door hard against the Latch-Stop

DORM
A
ED400 In Floor
Controller Manual
19
DORMA AUTOMATICS, Inc. 924 Sherwood Drive Toll-Free: 877-367-6211 DL3128-010
Lake Bluff, IL 60044 Fax: 877-423-7999 10/1/2007
E-mail: automatics@dorma-usa.com Subject to change without notice
Opener won't learn
To start a learn cycle, the following must happen:
• Power must be on
• There must not be an alarm
• The Selector knob must be in the Learn position
• The Program Switch must be moved to Off and Auto If the opener doesn’t start the Learn Cycle, use the
following table to troubleshoot it.
If the Learn Cycle starts, but then the display shows that the controllerrestarted (the display goes through the 3 opening
logos), the controller believes that it found a problem. Use the Log to find out what that problem is. If the door will open
and close slowly, but then not do anything else, it may be because you stopped the door too soon. Just do a new learn cycle,
but this time make sure that you stop the door at the desired Back-Stop.
Opener won't open, manual opening is OK
The opener may not open the door for these reasons:
• The opener needs a learn cycle (probably because you changed a parameter that affect motion) – turn the
Selector knob to the Learn position; if it doesn't say "Rdy", do a learn cycle
• The Program Switch is in the Off position – switch it to the Auto position
• The controller detected an alarm condition – place the Selector switch in the Run position; if an exception
code is flashing, note the code; turn Off power to the opener; read about that failure in the troubleshooting
section, and, if possible, correct the problem; try again.
• A wire from the Program Switch is shorted to ground
• The trigger source is not working, or it's not wired properly – in that case the Trig LEDon the controller will
not light up
• The software is hung-up – turn Off and On power to the opener In any case, look at the Help menu for a hint.
Opener keeps door open at Back-Stop
The opener may not open the door for these reasons:
• The Program Switch is in the Hold-Open position – move it to Auto
• There's a door stop holding the door open – try moving the door by hand
• The controller is receiving a trigger signal – see if the Trig LED is lit
• The controller is receiving a header presence signal – see if the Pres LED is lit
• The controller is receiving an approach presence signal – see if the Appr LED is lit
• The controller is receiving a safety beam signal – see if the Beam LED is lit
• A wire from the Program Switch is shorted to ground
• The delay is set very long and it hasn't yet expired
Opener pushes door hard against the Latch-Stop
This may happen for these reasons:
• The Power-Hold feature is on – troubleshoot why the trigger won't open the door
• There is a temporary soft failure – remove power to the controller and turn it back on
• If the problem persists, the controller may have forgotten some parameters – do a learn cycle
• If this happens as soon a power is applied to the controller, there is a hardware failure – replace
the controller
Action
Move the Selector knob to the "RUN" position.
Move the Selector knob to the"MONI SEL"
position. Turn the Dial Knob until you see "LOG".
Check
Is there a code
flashing?
Is there a
code?
Solution
Check that code and see what it means in
the Event Codes table. Solve it accordingly.
Check that code and see what it means in
the Event Codes table. Solve it accordingly.