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Lead Contents

Temperature Controller: Control Output of Sensor

FAQ No. FAQ03110

Primary Contents

Question

What happens to the control output when the Sensor of E5C2 Temperature Controllers fails?

Answer

The status of the control output depends on the type of Temperature Sensors and the type of error.

Temperature Sensor typeTemperature Sensor errorControl output
Thermocouple inputBurnoutOFF
Short-circuitON if the set point is higher that the temperature
at the shorted section, OFF if it is lower.
Resistance thermometerBurnout of element or lead wire AOFF
Burnout of lead wire BON
Burnout of lead wire A, B, and B (all three wires)ON
Short-circuit of element, lead wires A and BON
Short-circuit of lead wires B and BNormal control but there is an error
Thermistor inputBurnoutON
Short-circuitOFF

There is no way of sending notification of an input error to E5C2. Check the inputs if abnormal operation is detected.

Applicable models: E5C2