Troubleshooting
Possible cause/Suggested solution
This trip is not adjustable.
• Ensure the motor is connected to terminals T1, T2, T3 using
in-line (three wire) connection. The soft starter does not support
inside delta (six wire) connection.
• If the soft starter is connected to a grounded delta mains supply,
the starter may incorrectly detect the motor configuration. Set
parameter 20F Motor Connection to 'In-line'.
Related parameters: 20F
T1
T2
T3
This trip is not adjustable.
The motor is not connected correctly to the soft starter.
• Check individual motor connections to the soft starter for power
circuit continuity.
• Check connections at the motor terminal box.
Related parameters: None
The motor has reached its maximum thermal capacity. Overload can
be caused by:
•
The soft starter protection settings not matching the motor thermal
capacity
• Excessive starts per hour or start duration
• Excessive current
• Damage to the motor windings
Resolve the cause of the overload and allow the motor to cool.
Related parameters: 1B, 1C, 1D, 1E, 5G, 6F
NOTE
Parameters 1C, 1D and 1E determine the trip current for
motor overload protection. The default settings of parameters
1C, 1D and 1E provide Motor Overload Protection: Class 10,
Trip Current 105% of FLA (full load amperage) or equivalent.
The motor thermistor input has been enabled and:
• The resistance at the thermistor input has exceeded 3.6 kΩ for
more than one second.
• The motor winding has overheated. Identify the cause of the
overheating and allow the motor to cool before restarting.
• The motor thermistor input has been opened.
If thermistors have previously been connected to the soft starter but
are no longer required, use the Thermistor Reset function to disable
the thermistor.
Related parameters: 6M
communication
There is a network communication problem, or the network master
may have sent a trip command to the starter. Check the network for
causes of communication inactivity.
Related parameters: 6I
67
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