Can we change PTC binary resistance value in LTMR/Tesys T settings
The PTC Binary motor temperature sensing function is enabled when the Motor Temp Sensor Type
parameter is set to PTC Binary and the LTM R controller is connected to a binary positive temperature
coefficient thermistor embedded in the motor.
The LTM R controller monitors the state of the temperature sensing element and signals:
1) a motor temperature sensor warning when the measured resistance exceeds a fixed threshold.
2) a motor temperature sensor fault when the measured resistance exceeds the same fixed threshold.
The fault and warning conditions continue until measured resistance falls below a separate fixed motor
temperature sensor re-closing threshold.
Motor temperature sensing fault thresholds are factory pre-set and are not configurable. Fault monitoring
can be enabled or disabled
The resistance value is 2900 ohms and it is non-configurable
parameter is set to PTC Binary and the LTM R controller is connected to a binary positive temperature
coefficient thermistor embedded in the motor.
The LTM R controller monitors the state of the temperature sensing element and signals:
1) a motor temperature sensor warning when the measured resistance exceeds a fixed threshold.
2) a motor temperature sensor fault when the measured resistance exceeds the same fixed threshold.
The fault and warning conditions continue until measured resistance falls below a separate fixed motor
temperature sensor re-closing threshold.
Motor temperature sensing fault thresholds are factory pre-set and are not configurable. Fault monitoring
can be enabled or disabled
The resistance value is 2900 ohms and it is non-configurable
Released for: Schneider Electric India
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