TROUBLESHOOTING
Possible cause/Suggested solution
Motor connection
This trip is not adjustable.
• Ensure the motor is connected to terminals T1, T2, T3 using
in-line (three wire) connection. The EMX4e 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
Motor Connection T1
Motor Connection T2
Motor Connection 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
Motor overload
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
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.
EMX4e User Manual (710-18433-00C) | 83
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