EUCHNER MGB (V1.2.3) - Manual (Page 8)

MGB Help for Setup and Service
2.5 LED DIA 1 flashes 6 times (AR version)
Fault symptom:
The MGB displays the fault state “signal sequence incorrect”.
Possible fault causes:
 This state occurs if, with an MGB, the door was opened from the inside with the escape release or the guard
locking solenoid was not opened before.
 If there is an internal fault (break)
Remedy:
1. Open all safety doors on which the DIA LED is flashing (irrespective of the number of flashing pulses)
2. Switch the voltage off at all devices
or
press the reset button (if present) that controls the integrated reset inputs.
3. Switch the voltage on again
or
release the reset button
4. Wait until LEDs DIA1 flash three times or stop flashing entirely (after approx. 8 s)
5. Close the safety doors.
 If there is no internal fault (break), the MGBs are now ready for operation again.
2.6 LED DIA 1 flashes 7 times (AP version)
Fault symptom:
The MGB displays the fault state “signal sequence incorrect”.
Possible fault causes:
 This state occurs if, with an MGB, the door was opened from the inside with the escape release or the guard
locking solenoid was not opened before.
Remedy:
1. Open all safety doors on which the DIA LED is flashing (irrespective of the number of flashing pulses)
2. Switch the voltage off at all devices
or
press the reset button (if present) that controls the integrated reset inputs.
3. Switch the voltage on again
or
release the reset button
4. Wait until LEDs DIA1 flash three times or stop flashing entirely (after approx. 8 s)
5. Close the safety doors
 The MGBs are now ready for operation again
Page 8/12 Subject to technical modifications 115387-01-04/12