AuCom MVE Series User Manual page 46

4L – Frequency Delay
Range: 0:01 - 4:00 (minutes:seconds)
Description: Slows the MVE'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,
irrespective of the settings for Frequency Trip parameters.
4M – Restart Delay
Range: 00:01 - 60:00 (minutes:seconds)
Description: The MVE can be configured to force a delay between the end of a stop and the beginning of the next
start. During the restart delay period, the display shows the time remaining before another start
can be attempted.
4N – Motor Temperature Check
Options: Do Not Check (default)
Check
Description: Selects whether the MVE will verify the motor has sufficient thermal capacity for a successful start.
The soft starter compares the motor's calculated temperature with the temperature rise from the
last motor start and only operates if the motor is cool enough to start successfully.
4O – Ground Fault Level
Range: 1 A - 40 A
Description: Sets the trip point for ground fault protection. Ground fault is a dynamic trip based on phase
current measurements every half-cycle.
4P – Ground Fault Delay
Range: 0:01 - 4:00 (minutes:seconds)
Description: Slows the MVE's response to ground fault variation, avoiding trips due to momentary fluctuations.
NOTE
Ground fault accuracy is within ± 1 A of the set value.
4Q – Undervoltage Level
Range: 100 – 18000 V
Description: Sets the trip point for undervoltage protection. Set as required.
4R – Undervoltage Trip Delay
Range: 0:00 – 4:00 (minutes:seconds)
Description: Slows the MVE's response to undervoltage, avoiding trips due to momentary fluctuations.
4S – Overvoltage Level
Range: 100 – 18000 V
Description: Sets the trip point for overvoltage protection. Set as required.
4T – Overvoltage Trip Delay
Range: 0:00 – 4:00 (minutes:seconds)
Description: Slows the MVE's response to overvoltage, avoiding trips due to momentary fluctuations.
4U, 4V – Instantaneous Overcurrent Stage 2
The MVE has two instantaneous trip functions, stage 1 and 2. These protection functions are configured to be
complementary.
Stage 1 must be configured to protect the motor against a locked rotor (shearpin) situation during run mode. Stage 1
should trigger at lower current/higher time values than Stage 2.
Stage 2 must be configured to protect the main switching device. When Stage 2 triggers, the starter opens the main
switching device.
PROGRAMMABLE PARAMETERS
Default: 5 seconds
Default: 30 minutes
Default: 1 A
Default: 3 seconds
Default: 100 V
Default: 5 seconds
Default: 7200 V
Default: 5 seconds
MVE User Manual (710-17074-00H) |
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