DORM
ED400 In Floor
Controller Manual
16
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
TROUBLESHOOTING
Electrical
Fuse replacement
The controller has 2 fuses, one on the AC line input, one on the motor output. If the input fuse blows,
the controller is completely off (no display). If the output fuse blows, the controller comeson, but there's
no motor drive. Regardless, the passive braking keeps on working, because it's directly connected to
the motor connector.
This is the fuse information:
To replace a fuse:
• Disconnect the AC power
• Unscrew the appropriate fuse holder cap
o Right side for the motor fuse
o Left side for the line input fuse
• Replace the fuse with an identical one
• Close the fuse holder
• Reconnect the AC power
Plugging AC to Motor Connector
Plugging AC power into the Motor connector will damage the controller. The AC power plugs provided
with the controller are keyed in such way that you can’t do so. However, if you use other plugs, nothing
prevents you from doing so.
Troubleshooting tools
For troubleshooting purposes, the controller displays:
• the state of its inputs, with LEDs
• the Learn State (when the Selector knob is in the Learn position)
• the present exception, if any (when the Selector knob is in the Run position)
• recent exceptions (Log menu)
Input LEDs
Each sensor input line, and the Fire and Breakout lines, have LEDs a to indicate their status. This is what
it means when the LEDs are lit:
F1 Line input fuse Input plug 5 x 20 mm
5 x 20 mm
2.0 A, fast
F2 Motor fuse Motor-plug 4.0 A, fast
LED Reason for being lit
███ Trigger The trigger (radar) sensor is active, or this lineis shorted to ground
███ Pres The approach-side sensor is active, or this line is shorted to ground
███ Approach The jamb-mounted sensor is active, or this line is shorted to ground
███ Swing The swing-side presence sensor isactive, or this line is shorted to ground
███ Beam The light beam sensor is active, or this line is shorted to ground
███ Break Out The link between this line and ground is open, or the door is in breakout
███ Fire The link between thisline and ground is open, or the fire detector is active
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