Dorma ED400 - Bad value; Particular situations; Power off: ease of motion; Display is dark

DORM
A
ED400 In Floor
Controller Manual
18
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
Bad value
Due to unusual circumstances, an operating parameter may take a value outside its allowed limits.
The controller constantlychecks the operating parameter; if it finds a problem with their value, it
logs the problem and restarts the program from scratch. After the entry, the next 2 items in the log
are the address of the variable, and the bad value. This table lists the addresses (N is the number
shown in the log).
For example:
Particular situations
Power off: ease of motion
With the power off, the door should open easily and close slowly. If not, use this table to troubleshoot it.
Power off: time through Latch-Check
With the power off, the Passive Brake, inside the controller, limits the closing speed. The PassiveBrake is
not adjustable. The closing time from 10°to Latch-Stop should be 1.5 seconds or more, per BHMS/ANSI.
For OCM applications, the door mayclose faster than that. If so, you only have 2 options: reducing the
spring preload, or adding mechanical friction to the door.
Display is dark
The opener may not open the door for these reasons:
• There's no AC power to the controller
• The AC plug to the controller is disconnected
• The line input fuse (on the right side panel) is blown
• The software is hung up
Position of DIAL knob Display Meaning
Fully CW (most recent) Automatic Power-up after the bad value was detected
1 step CCW (previous) The bad value: 140 degrees (*see below)
2 steps CCW Address of the variable with the bad value: 41, which, form
the previous table, we see is the Wall Mask Angle
3 steps CCW A bad value was detected
4 steps CCW (previous) Previous power-up
Further CCW No other event in the log
Symptoms
The door is hard to
open and slams shut.
The door is hard to
open and closes very
slowly.
The door is easy to
open and slams shut.
Possiblecause
The motor wiring is backwards.
Try disconnecting the motor cable. If that makes
no difference, the operator is bad; if the door
opens easily and slams shut, the controller is bad.
• The motor is not wired to the
controller (checkthe cable and
the motorconnector)
• The controller is bad
• The motor is bad
Solution
Reverse the red and black wired in the
motor connector.
Replace the controller.
• Fix the wiring
• Try replacing the controller
• Replace the operator