IM-P693-02
EMM Issue 2
19
LCR2251 Level Controller
6. Fault finding
6.1 Display, diagnosis and troubleshooting
Important
Please check the following before fault diagnosis:
Supply voltage:
Is the level switch supplied with the voltage specified on the name plate?
Wiring:
Does the wiring conform to the wiring diagram?
Faults indicated by the 7-segment display
Fault code
Fault
Remedy
E.005
Faulty level transmitter, measuring current
< 4 mA
Check level transmitter and replace if necessary.
Check electrical connection.
E.006
Faulty level transmitter, measuring current
> 20 mA
Check level transmitter and replace if necessary.
Check electrical connection.
E.013
MIN switchpoint higher than MAX switch- point
Re-adjust switchpoints.
In the event of a malfunction, the MIN and MAX alarm is triggered.
Important
For further diagnosis, please refer to the LP20, LP21, and PA420 installation and
operating manual.
Note
In the event of a level controller malfunction, the MIN or MAX alarm is triggered and the
equipment restarts.
If the process is continually repeated, the equipment must be replaced.
