Delta Electronics MVF2000 Series, Product Manual

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VIII. Commissioning
The commissioning of the MVF2000 medium voltage drive can only be conducted by
qualified and trained engineers authorized by Delta Electronics.
Functional test, commissioning and primary parameter calibration shall be executed by
professional engineers in coordination with end users to make sure the final test and
performance are according to end users
’ requirements.
8-1 Commissioning preparations
After finishing installation of the MVF2000, the device shall be inspected carefully before
commissioning. The specific inspection contents are as follows:
Visual inspection

The entire MVD set shall be assembled precisely without any cabinet damage,
deformation and other defects;

Open the controller cabinet door and observe whether there are problems such as
loosen wires and switch in the wrong position. The terminal boards on the main control
box shall be in the right positions. The optical fiber connection shall be in good condition;

Open the transformer cabinet and observe whether the connection of the wiring
terminals is in good condition. Make sure that high & low voltage circuits do not contact
each other and whether the temperature sensor installation is in good condition;

Open the power cell cabinet and check whether the connections in front of the power cell
are solid;

Check whether the installation of the voltage and current sensors are proper and
whether the jacks of the signal wires are firmly connected;

Check whether the earthing copper busbars are connected reliably.
Input & output inspection:

Check whether the incoming power of the MVD meets the MVD specification;

Check whether the output voltage of the MVD matches the rated voltage of the motor
driven;

Check whether the control power provided by the user matches the MVD specification;

Check whether the rated power of the MVD matches the motor specification.
Wiring inspection:

Check whether the secondary transformer wiring is correct according to the secondary
wiring map;

Check whether the primary wiring is correct according to the primary wiring map;
Earthing inspection:

Earthing copper busbars resistance requirements

Control system earthing
: ≤0.5Ω