ATR 621 - User manual 47
13 Table of Anomaly Signals
If installation malfunctions, controller will switch o regulation output and
will report the anomaly.
For example, controller will report failure of a connected thermocouple
visualizing ( ashing) on display. For other signals see table below.
Couse How to do
Error in EEPROM cell
programming.
Call Assistance
Incorrect cycle data Call Assistance
Incorrect con guration data.
Possible loss instrument
calibration.
Verify that con guration
parameters are correct.
Sensor connected to AI1
broken or temperature out of
range.
Control connection with probes
and their integrity.
Sensor connected to AI2
broken or temperature out of
range.
Control connection with poten-
tiometer and its integrity.
Missing calibration. Call Assistance
Cold junction sensor failure or
room temperature outside of
allowed limits.
Call Assistance
Feedback potentiometer for
motorized valve not calibrated.
Start valve calibration procedure.