Service fault-finding
Check Possible cause
Is voltage present?
Green light diode for 24V on? No →→ Power to unit?
Yes Are fuses intact?
↓↓ Short circuit 24V
Control panel out of order
Error message
Error message in display window? Yes →→ See error messages
No
↓↓
Is stop circuit intact?
Green light diode for stop on? No →→ Stop circuit broken
Yes Wicket door contact
↓↓ Control panel out of order
Alarm display?
Red light diode on or flashing? Yes →→ See displays
No Load sensor
↓↓ Safety buffer
Limit switches functioning?
Limit position display on? No →→ Motor thermocontact out of order
Yes Limit switch out of order or
↓↓ circuit interruption
Consistent input signal?
Operate display on? Yes →→ Short circuit in access control equipment
No Signal from time switch
↓↓
Internal push-buttons functioning?
Display lights when button No →→ card out of order
actuated?
Yes
↓↓
If all displays light as they should, no error messages are displayed and the automatic controls still fail
to start, note the item number (on front page of manual). Contact DAAB for help.
To Next Page
Loading...