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COMMISSIONING
64
| MVE User Manual (710-17074-00G)
MVE-0900~1700, V06
The fan assembly must be removed from each phase arm before the resistor assembly can be connected. The same process must
be followed for each phase arm.
1.
Remove the 12 screws holding each fan assembly in place
. Do not remove the 3 screws holding each fan in place.
2.
Disconnect the fan control wiring plug
.
3.
Clip one end of the resistor assembly to the bolt on the busbar
.
4.
Clip the other end of the assembly to the small bolt just below the bushing under the insulating panel
.
•
Low Voltage Operation
WARNING
After low voltage mode testing, ensure that the LV motor test resistor assembly is removed from each phase arm
before connecting the soft starter to a medium voltage motor. If the LV motor test resistor assemblies remain on the
phase arms, the soft starter may suffer severe damage.
CAUTION
After low voltage mode testing, any fan control wiring must be reconnected and the fan assemblies must be screwed
to the front of each phase arm before connecting to the medium voltage mains supply.
To operate the MVE in low voltage test mode:
1.
Isolate the soft starter from the motor and the mains supply.
2.
Connect one LV motor test resistor assembly to each phase arm.
3.
Connect T1, T2, T3 of the soft starter to a three phase motor with full load current
≥ 5
A. Connect L1, L2, L3 of the soft
starter to three phase mains supply with voltage less than 500 VAC (frequency 50 Hz or 60 Hz).
4.
Set parameter
1A Motor Full Load Current
to the value shown on the motor name plate.
5.
Switch on control and mains supply, and use the MVE to start the motor. The start command can be sent from the
controller or via the remote input. Monitor the soft starter's display and verify the line current and voltage readings.
6.
Stop and restart the motor several times to confirm correct and consistent operation.
7.
When testing is complete, isolate the soft starter from the mains and control supply. Disconnect the soft starter from the
motor.
Medium Voltage Commissioning Test
Check the motor datasheets and motor terminal boxes to ensure that no capacitors are installed internally or cabled to the motor
terminal box.
Check that no capacitors are directly connected onto the soft starter output connection (see
Power Factor Correction
on page 23).
Review the parameter settings for MV motor operation.
1.
Ensure that all LV motor test resistor assemblies or linking wires are removed from each phase arm.
2.
Set parameters according to the motor data and application requirements.
3.
Program inputs and outputs as per site requirement.