AuCom MVE series User Manual page 49

CONTROLLER
3D – Auto-Stop Time
Range: 00:01 - 24:00 (hours:minutes)
Description: Sets the time for the soft starter to auto-stop, in 24 hour clock format.
4 Protection Settings
These parameters determine when the soft starter's protection mechanisms will activate. The activation point for each protection
mechanism can be set to suit the installation.
The soft starter responds to protection events by tripping, warning, or writing the event to the event log. The response is
determined by the Protection Action settings. The default response is a trip.
CAUTION
The protection settings are vital for safe operation of the soft starter and motor. Defeating the protection may
compromise the installation and should only be done in the case of emergency.
4A – Excess Start Time
Excess start time is the maximum time the MVE will attempt to start the motor. If the motor does not transition to Run mode within
the programmed limit, the starter will trip. Set for a period slightly longer than required for a normal healthy start. A setting of 0
disables excess start time protection.
Range: 0:00 - 2:00 (minutes:seconds)
Description: Set as required.
4B – Excess Start Time-2
Range: 0:00 - 2:00 (minutes:seconds)
Description: Set as required.
4C – Undercurrent
Range: 0% - 100%
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)
Description: Slows the MVE's response to undercurrent, avoiding trips due to momentary fluctuations.
4E, 4F – Instantaneous Overcurrent
The MVE can be configured to trip if the average current of all three phases exceeds a specified level while the motor is running.
Refer to
Parameter 4E Instantaneous Overcurrent
Range: 80% - 600% FLC
Description: Sets the trip point for instantaneous overcurrent protection, as a percentage of motor full load current.
Instantaneous Overcurrent Delay
Parameter 4F
Range: 0:00 - 1:00 (minutes:seconds)
Description: Slows the MVE's response to overcurrent, avoiding trips due to momentary overcurrent events.
NOTE
This protection is only active during run and must be coordinated with
4U, 4V).
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| MVE User Manual (710-17074-00G)
4U, 4V – Instantaneous Overcurrent Stage 2
Default: 1 minute
Default: 20 seconds
Default: 20 seconds
Default: 20%
Default: 5 seconds
on page 50 for more information and examples.
Default: 400%
Default: 0 second
Instantaneous Overcurrent Stage 2
(parameters