
User manual - DRR460 -
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Table of Anomaly Signals
If installation malfunctions, the controller switches off the regulation output and reports the anomaly
noticed on word 1009 (error flags).
For example, the controller will report a defective thermocouple by flashing alternately red/yellow
LED and setting to 1 the bit 0 of the word 1009.
For other signals see table below:
Cause
What to do
BIT2
Error in E2PROM cell programming
Call Assistance
BIT0
Cold junction sensor fault or room
temperature outside of allowed limits
Call Assistance
BIT3
Incorrect configuration data.
Possible loss of calibration values
Check if the configuration parameters are
correct
BIT1
Thermocouple open or temperature outside
of limits
Check the connection with the sensors and
their integrity
BIT4
Missing calibration data
Call Assistance
Notes / Updates
1. On activation, the output is inhibited if the controller is in alarm mode. Activates only if alarm condition reappers, after that
it was restored.
Summary of Contents for DRR460 Series
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