Mdcic Connector Configuration; First Power Up/Commissioning Check List - Danfoss VLT AFE 302 Operating Instructions Manual

Crane System Design
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Illustration 3.11 One-drive Configuration
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Illustration 3.12 Two Independent Drive Configuration
Illustration 3.13 Outside View and Cabinet Skeleton
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VLT Active Front End AFE 302 Operating Instructions Liebherr

3.2.4 MDCIC Connector Configuration

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The MDCIC board has the four connectors. The ribbon cables
from the power units will be connected from FK100 to FK102
in this order. FK103 is reserved for the future use.
For one power unit configuration, the special part which
consists of the DC/DC converter and the ribbon cable is
connected to FK101. It generates an isolated 5V from an
internal 24V for the RS-485 port located at the control card.
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3.3 First Power Up/Commissioning Check
The following measurement equipment are recommended:
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Check list
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MG.33.X2.02 - VLT is a registered Danfoss trademark
MDCIC Port Layout
FK100 (Master)
FK101 (Slave 1)
List
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Voltage meter (1kA AC/DC env. Cat III)
•
Current clamp min. 2kA
•
Harmonic analyzer, only for commissioning
•
Check fan voltage supply (3x400V).
•
Verify that system is not powered.
•
Verify the system is grounded to earth.
1. all AFEs and frequency converters
2. all motors
3. all filters
4. the whole crane construction
5. HT transformer
•
Check that there are no earth faults or short circuits
at the motor cables and motors.
•
Check that the DC discharge resistor is connected
right and not shorted.
•
Verify phase sequence and continuity for the
voltage sensing on the AFE as described below.
1. Make sure that power is not applied.
2. Manually close input contactor (between
AFE and LCL filter).
3. Unplug the MK105 connector on the
MDCIC.
4. Measure MK105 of MDCIC harness to the
input phases.
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FK102 (Slave 2)
FK103 (Empty
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