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TROUBLESHOOTING
710-14888-00C EMX4i User Manual
119
Display
Possible cause/Suggested solution
Power loss
This trip is not adjustable.
The starter is not receiving mains supply on one or more phases
when a Start Command is given.
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.
Related parameters: None
Pressure Sensor
The smart card has detected a fault with the pressure sensor.
Related parameters: 30A, 36A
Rating Capacity
The EMX4i 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: 5Q
Thermistor circuit
The thermistor input has been enabled and:
•
The resistance at the input has fallen below 20
Ω
(the cold
resistance of most thermistors will be over this value) or
•
A short circuit has occurred. Check and resolve this condition.
Related parameters: None
Содержание EMX4i
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