TROUBLESHOOTING
Display
Possible cause/Suggested solution
Phase sequence
The phase sequence on the soft starter's input terminals (L1, L2,
L3) is not valid.
Check the phase sequence on L1, L2, L3 and ensure the setting
in parameter 5J is suitable for the installation.
Related parameters: 5J, 6L
Power loss
This trip is not adjustable.
The starter is not receiving mains supply on one or more phases.
Check that the main contactor closes when a start command is
given, and remains closed until the end of a soft stop. Check the
fuses. If testing the soft starter with a small motor, it must draw
at least 10% of the starter's programmed FLC setting on each
phase.
If shunt relay mode is enabled (parameter 20G
Shunt Trip Mode
),
certain trips may cause the shunt relay to open the circuit
breaker.
Related parameters: None
Pressure Sensor
The smart card has detected a fault with the pressure sensor.
Related parameters: 30A, 36A
Rating Capacity
The EMX4e is operating beyond its safe capacity. Allow the
starter to cool.
Related parameters: None
RTD Circuit
The smart card has detected a fault with the RTD sensor, or the
RTD has activated temperature protection.
Related parameters: 35B, 36J
SCR Itsm
The SCR current surge rating has been exceeded.
Related parameters: None
SCR
overtemperature
The temperature of the SCRs, calculated by the thermal model,
is too high to allow further operation. Wait for the starter to cool.
Related parameters: None
Starter
communication
There is a problem with the connection between the soft starter
and the optional expansion card. Remove and reinstall the card.
If the problem persists, contact your local distributor.
Related parameters: None
Starts per hour
The soft starter has already attempted the maximum number of
starts in the last 60 minutes. Wait before attempting another
start.
To determine when the waiting period will end, review the log.
Related parameters: 5I
EMX4e User Manual (710-18433-00C) |
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