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Powerdrive F300 User Guide 277
Issue Number: 2
Thermistor
Motor thermistor over-temperature
24
The Thermistor trip indicates that the motor thermistor connected to an analog input has indicated a motor over
temperature. The cause of the trip can be identified by the sub-trip number
Recommended actions:
• Check motor temperature
• Check thermistor continuity
Undefined Drive has tripped and the cause of the trip is Undefined
110
The Undefined trip indicates that the power system has generated but did not identify the trip the power system. The cause
of the trip is unknown.
Recommended actions:
• Hardware fault – return the drive to the supplier
User 24V User 24 V supply is not present on control terminals (1,2)
91
A User 24 V trip is initiated, if User Supply Select (Pr 06.072) is set to 1 or Low Under Voltage Threshold Select (06.067) =
1 and no user 24 V supply is present on control terminals 1 and 2.
Recommended actions:
• Ensure the user 24 V supply is present on control terminals 1 (0 V) and 2 (24 V)
Trip Diagnosis
Sub-trip Reason
1 Analog input 1
2 Analog input 2
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