PROGRAMMABLE PARAMETERS
80
EMX4i User Manual 710-14888-00C
9.9
5 Protection Levels
5A –
Current Imbalance
Range:
10% - 50%
Default:
30%
Description:
Sets the trip point for current imbalance protection.
5B –
Current Imbalance Delay
Range:
0:00 - 4:00 (minutes:seconds)
Default:
3 seconds
Description:
Slows the EMX4i's response to current imbalance, avoiding trips
due to momentary fluctuations.
5C –
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.
5D –
Undercurrent Delay
Range:
0:00 - 4:00 (minutes:seconds)
Default:
5 seconds
Description:
Slows the EMX4i's response to undercurrent, avoiding trips due
to momentary fluctuations.
5E –
Overcurrent
Range:
80% - 600%
Default:
400%
Description:
Sets the trip point for overcurrent protection, as a percentage of
motor full load current.
5F –
Overcurrent Delay
Range:
0:00 - 1:00 (minutes:seconds)
Default:
0 second
Description:
Slows the EMX4i's response to overcurrent, avoiding trips due to
momentary overcurrent events.
5G –
Undervoltage
Range:
100 - 1000 V
Default:
350
Description:
Sets the trip point for undervoltage protection. Set as required.
NOTE
Voltage protections will not operate correctly until the starter is in Run mode.
