GESTRA NRR 2-52, Оригинальная инструкция по установке

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35
Error, alarm and warning messages
Indication, diagnosis and remedy
Attention
Before carrying out the fault diagnosis please check:
Supply voltage:
Is the equipment supplied with the voltage specified on the name plate?
Wiring:
Is the wiring in accordance with the wiring diagram?
Attention
n
Please follow the instructions given in the installation & operating manual for the
NRG 21-... , NRG 26-21 and NRGT 26-1 for further fault finding and troubleshooting.
If a malfunction occurs in the level controller, MIN and MAX alarms will be triggered and
the equipment is restarted.
Should this happen over and over again, replace the equipment with a new one.
Note
Alarm list / window
Status / error Remedy
Communication NRR/URB disrupted
Check electrical connection. Switch supply voltage off
and on again to re-start the equipment.
Code
A.001 MAX switchpoint exceeded
A.002 Value below MIN switchpoint
E.005
Level electrode defective, measuring volta-
ge < 0.5 VDC
Check level electrode and, if necessary, replace it.
Check electrical connection.
Level transmitter defective, measuring
current < 4 mA
Check level transmitter and, if necessary, replace it.
Check electrical connection.
E.006
Level electrode defective, measuring volta-
ge > 7 VDC
Check level electrode and, if necessary, replace it.
Check electrical connection.
Level transmitter defective, measuring
current > 20 mA
Check level transmitter and, if necessary, replace it.
Check electrical connection.
E.101
If control valve is equipped with a potentio-
meter: Calibration values 0 and 100 % have
been reversed.
Re-calibrate the potentiometer in the control valve.
E.102
Beginning and end of measuring range
have been reversed.
Re-adjust the measuring range.
E.103 MIN switchpoint above MAX switchpoint Re-adjust the switchpoints.
In the event of a malfunction (E. xxx) a MIN and MAX alarm will be triggered.