PROGRAMMING MENU
4C – Undercurrent
Range:
0% - 100%
Default:
20%
Description:
Sets the trip point for undercurrent protection, as a percentage of motor full load current. Set to a level between
the motor's normal working range and the motor's magnetising (no load) current (typically 25% to 35% of full load
current). A setting of 0% disables undercurrent protection.
4D – Undercurrent Delay
Range:
0:00 - 4:00 (minutes:seconds)
Default:
5 seconds
Description:
Slows the EMX3's response to undercurrent, avoiding trips due to momentary fluctuations.
4E – Instantaneous Overcurrent
Range:
80% - 600% FLC
Default:
400%
Description:
Sets the trip point for instantaneous overcurrent protection, as a percentage of motor full load current.
4F – Instantaneous Overcurrent Delay
Range:
0:00 - 1:00 (minutes:seconds)
Default:
0 second
Description:
Slows the EMX3's response to overcurrent, avoiding trips due to momentary overcurrent events.
4G – Phase Sequence
Options:
Any Sequence (default)
Positive Only
Negative Only
Description:
Selects which phase sequences the soft starter will allow at a start. During its pre-start checks, the starter
examines the sequence of the phases at its input terminals and trips if the actual sequence does not match the
selected option.
4H – Current Imbalance
Range:
10% - 50%
Default:
30%
Description:
Sets the trip point for current imbalance protection.
4I – Current Imbalance Delay
Range:
0:00 - 4:00 (minutes:seconds)
Default:
3 seconds
Description:
Slows the EMX3's response to current imbalance, avoiding trips due to momentary fluctuations.
4J – Frequency Check
Options:
Do Not Check
Start Only
Start/Run (default)
Run Only
Description:
Determines when and if the starter will monitor for a frequency trip.
4K – Frequency Variation
Options:
± 2 Hz
± 5 Hz (default)
± 10 Hz
± 15 Hz
Description:
Selects the soft starter's tolerance for frequency variation.
4L – Frequency Delay
Range:
0:01 - 4:00 (minutes:seconds)
Default:
1 second
Description:
Slows the EMX3's response to frequency disturbances, avoiding trips due to momentary fluctuations.
NOTE
If the mains frequency drops below 35 Hz or rises above 75 Hz, the starter will trip immediately.
CAUTION
Running a motor outside its specified frequency for long periods can cause damage and premature failure.
User Manual (710-04840-00M) |
49