ABB DriveIT ACH550-01 User Manual page 261

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ACH550 User's Manual

Thermistor (0)

The PTC can be connected to any digital input.

For other faults, or for anticipating motor overheating using a model,

see Group 30: Fault Functions.

Identifies the type of motor temperature sensor used, PT100

(°C) or PTC (ohms).

See parameters 1501 and 1507.

1 = 1 x PT100 – Sensor configuration uses one PT 100 sensor.

• Analog output

• The sensor resistance increases as the motor temperature

rises, as does the voltage over the sensor.

• The temperature measurement function reads the voltage

through analog input

2 = 2 x PT100 – Sensor configuration uses two PT 100 sensors.

• Operation is the same as for above 1 x PT100.

Parameter listing and descriptions

2 feeds constant current through the

2 and converts it to degrees

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