4.3 Installation Checklist
Before completing installation of the unit, inspect the entire installation as detailed in Table 4.14. Check and mark the items
when completed.
Inspect for Description
☑
Auxiliary equipment
•
Ensure that all auxiliary equipment, such as switches, disconnects, or input fuses/circuit breakers are ready
for operation.
•
Check function and installation of any sensors used for feedback to the active filter.
Cable routing
•
Ensure that power wiring and control wiring are separated, screened, or in 3 separate metallic conduits for
high-frequency interference isolation.
Control wiring
•
Check for broken or damaged wires and loose connections.
•
Check that control wiring is isolated from power wiring for noise immunity.
•
Check the voltage source of the signals, if necessary.
•
The use of shielded cable or twisted pair is recommended. Ensure that the shield is terminated correctly.
Cooling clearance
•
Measure that top and bottom clearance is adequate to ensure proper air flow for cooling, see
chapter 3.2.4 Cooling and Airflow .
Ambient conditions
•
Check that requirements for ambient conditions are met.
Fusing and circuit
breakers
•
Check for proper fusing or circuit breakers.
•
Check that all fuses are inserted firmly and are in operational condition and that all circuit breakers are in
the open position.
Grounding
•
Check for good ground connections that are tight and free of oxidation.
•
Grounding to conduit, or mounting the back panel to a metal surface, is not a suitable grounding.
Input and output
power wiring
•
Check for loose connections.
•
Check that motor and mains are in separate conduit or separated screened cables.
Panel interior
•
Inspect that the unit interior is free of dirt, metal chips, moisture, and corrosion.
•
Check that the unit is mounted on an unpainted, metal surface.
Switches
•
Ensure that all switch and disconnect settings are in the proper positions.
Vibration
•
Check that the unit is mounted solidly, or that shock mounts are used, as necessary.
•
Check for an unusual amount of vibration.
Table 4.14 Installation Check List
CAUTION
POTENTIAL HAZARD IN THE EVENT OF INTERNAL FAILURE
Risk of personal injury when the active filter is not properly closed.
•
Before applying power, ensure all safety covers are in place and securely fastened.
Electrical Installation Operating Instructions
MG90V302 Danfoss A/S © 09/2014 All rights reserved. 29
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