How can an ATS46 or ATS48 be used with an undersized motor or no motor?
Issue:
ATS46 or ATS48 using an undersized motor or not using motor.
Product Line:
ATS46, ATS48
Environment:
All
Cause:
NA
Resolution:
A minimum load current is required for SCR conduction. Starter will trip on PHF (Phase Fault) if the motor current draw is less than 10% of the nominal motor current (adjustable down to 5% on ATS48).
A very small motor or motor loads that can not pull adequate current may require a smaller soft starter.
For testing purposes only, the SST parameter can be turned on under Level 3 parameters(drC menu on ATS48). This SST mode will automatically reset to "NO" when power is cycled.
SST will NOT allow the soft starter to operate with no motor.
ATS46 or ATS48 using an undersized motor or not using motor.
Product Line:
ATS46, ATS48
Environment:
All
Cause:
NA
Resolution:
A minimum load current is required for SCR conduction. Starter will trip on PHF (Phase Fault) if the motor current draw is less than 10% of the nominal motor current (adjustable down to 5% on ATS48).
A very small motor or motor loads that can not pull adequate current may require a smaller soft starter.
For testing purposes only, the SST parameter can be turned on under Level 3 parameters(drC menu on ATS48). This SST mode will automatically reset to "NO" when power is cycled.
SST will NOT allow the soft starter to operate with no motor.
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