Pego NECTOR, Руководство по эксплуатации и обслуживанию

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NECTOR
Page 54
OPERATION AND MAINTENANCE MANUAL
Rev. 03-21
DIAGNOSTICS
In the event of any anomalies, the NECTOR system warns the operator through alarm codes,
visual and acoustic signalling.
When an alarm condition occurs, the red alarm bar is activated, the alarm relay and the buzzer are
activated.
At any time by pressing the key it is possible to silence the internal buzzer. Subsequent
pressing of the SET key restores the sound signal and the display of the codes.
Minimum and maximum temperature alarms.
For these alarms it is possible to set by means of the variable Ald a delay to their signalling.
When the temperature alarm returns, the red bar remains active to signal the return of an alarm. To
reset the stored temperature alarm, press the key .
The alarms E1, E2, E3, EH1, EH3, EL1, EL3 are stored in the datalogger and can be viewed
together with the temperature history.
The alarm codes are listed below in order of priority:
ALARM
CODE
POSSIBLE CAUSE OPERATION TO BE PERFORMED
EP2
Low backup battery alarm (only present if the
mains supply is absent)
•
Restore mains power
•
If necessary, replace the backup battery
EP1 Mains supply alarm absent
•
Restore mains power
E0
E0i
E0E
Eeprom alarm
An error was detected in the EEPROM memory.
(outputs are all disabled except alarm outputs)
•
Switch the equipment off and on again
•
Reset to default values (page 28)
•
Check that the wiring complies with the
requirements.
Er
Data write alarm: The control is not storing the
detected data correctly.
•
Contact the technical assistance service
E1
Functional anomaly of the ambient probe
•
Check the status of the ambient probe.
•
If the problem persists replace the probe.
E2
Functional fault of the defrosting probe (in this
case, any defrosting will last for the time d3)
•
Check the status of the defrost probe.
•
If the problem persists replace the probe.
E3
Functional malfunction of the datalogger probe
•
Check the status of the datalogger probe.
•
If the problem persists replace the probe.
E4 Probe 4 functional abnormality
•
Check the status of the probe 4.
•
If the problem persists replace the probe.
E5 Probe 5 functional abnormality
•
Check the status of the probe 5.
•
If the problem persists replace the probe.
E6
Low clock battery alarm: the control will work for
at least another 20 days; subsequently, if the
power supply to the panel fails, the time setting
(not the previously recorded data) will be lost.
•
Replace the clock battery ( CR2032 ), located on
the board on the front of the panel.
DIAGNOSTICS
7.1