Danfoss VLT FC 102 Installation Manual

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Danfoss VLT FC 102 Installation Manual Manual pdf 43 page image

6 Initial Start-up6.1 Pre-start Check ListBefore completing installation of the unit, inspect the entire installation as detailed in Table 6.1. Mark the check-list itemswhen they are completed.Inspect for Description ☑Auxiliary equipment • Look for auxiliary equipment, switches, disconnects, or input fuses/circuit breakers that reside on the inputpower side of the drive system or on the output side to the motor. Ensure that they are ready for full-speed operation.• Check function and installation of any sensors used for feedback to the drive system.• Remove any power factor correction caps on motor(s).• Adjust any power factor correction caps on the mains side and ensure that they are dampened.Cable routing • Ensure that motor wiring and control wiring are separated or shielded, or in 3 separate metallic conduitsfor high-frequency interference isolation.Control wiring • Check for broken or damaged wires and loose connections.• Check that control wiring is isolated from power and motor wiring for noise immunity.• Check the voltage source of the signals, if necessary.• Using shielded cable or twisted pair is recommended. Ensure that the shield is terminated correctly.• Check that the DC-link fuse and microswitch fixtures are correct. Check the microswitch cabling and theconnectors in the top of the drive module.Cooling clearance • Check that there is 225 mm (9 in) of top clearance for adequate cooling.Ambient conditions • Check that requirements for ambient conditions are met.Fusing and circuitbreakers• 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 inthe 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 outputpower wiring• Check for loose connections.• Check that motor and mains are in separate conduit or separated shielded cables.• Check that the shields are properly grounded.• Check that the DC-link connections are properly made.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 6.1 Installation Check ListInitial Start-up Installation GuideMG37K302 Danfoss A/S © 08/2017 All rights reserved. 416 6