Dormakaba ED50 - Page 68

68
ED50/ED100/ED250 09-2021DL4617-003
dormakaba ED50/ED100/ED250 OHC Header
Setup and Troubleshooting Instructions
Appendix B
No. Display Red LED
• Description
Troubleshooting error codes
 E 
Flashing
 x
EEPROM error.
• Internal memory check could
not be completed.
• Drive unit works in door closer
mode.
• Using dormakaba handheld, reload current firmware to
reinitialize system.
• If the error is still present, the control unit must be replaced.
 E 
Flashing
 x
Overcurrent detection.
Motor is consuming more current
than drive unit can provide.
• Motor is consuming too much power, check for any external
causes.
• Drive unit or control unit is defective.
• If error repeats, operator must be replaced.
 E 
Flashing
 x
Faulty learning cycle.
Learning cycle could not be
completed (Chapter ).
• Error may occur if learning cycle has been interrupted, for
example if door movement has been interrupted during the
learning cycle.
• Learning cycle must be repeated.
 E 
Flashing
 x
SVP-PR  power reserve module
test negative.
• See Appendix A, parameter TS, Power reserve module test.
• Check power reserve module and its wiring.
 E  Brake error.
Reference Chapter , Maintenance. Para. . - Brake maintenance.
. Brake error during learning cycle.
• Check brake wire connections on X terminal strip.
Verify wire insulation has been properly stripped from end of wires
and wires are secured under terminals.
• Red wire terminated on G, black wire on .
Reference Figure .., brake wiring.
. Verify that the only wiring on X terminals G and  are the brake
wires.
. Brake air gap tolerance issue.
• Brake air gap adjustment.
Reference Para. .., Adjustment of air gap.
Brake power (G: + Vdc, : V).
• ON when door is in fully opened position.
• OFF when hold-open time expires.

E 
E 
E 
Flashing
 x
Incremental encoder error.
• Motor gear unit encoder
monitoring detected a faulty
state.
. Check encoder plug connection at operator.
• Secure connection.
• Wiring terminations
• Short circuits.
. Check locking device for short circuits.
• Error can be caused by defective motor or short circuit in locking
device.
• Motor gear unit must be replaced in event of defective motor.
 E 
Flashing
 x
Incompatible firmware version,
double door system, second system.
• Equip both operators with same firmware version.
B.. Troubleshooting chart, "E" codes.