Auxiliary Equipment - Danfoss VLT FC 280 Operating Manual

Operating Guide | VLT® Midi Drive FC 280
Table 5: Installation Check List
Inspect for Description
Auxiliary equip- • Look for auxiliary equipment, switches, disconnects, or input fuses/circuit breakers, residing on the
ment input power side of the drive, or output side to the motor. Ensure that they are ready for full-speed
operation.
• Check the function and installation of any sensors used for feedback to the drive.
• Remove any power factor correction capacitors on the motor.
• Adjust any power factor correction capacitors on the mains side and ensure that they are dampened.
Cable routing • Ensure that the motor wiring and control wiring are separated, shielded, or in 3 separate metallic
conduits for high frequency interference isolation.
Control wiring • Check for broken or damaged wires and loose connections.
• Check that the control wiring is isolated from power and motor 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 • Ensure that the top and bottom clearance is adequate to ensure proper airflow for cooling, see chapter
Mounting.
Ambient condi- • Check that requirements for ambient conditions are met.
tions
Fusing and circuit • Check for proper fusing or circuit breakers.
breaker • 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 sufficient ground connections and ensure that those connections 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 • Check for loose connections.
power wiring • Check that the motor and mains cables are in separate conduit or separated shielded 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.
INTERNAL FAILURE HAZARD
An internal failure in the drive can result in serious injury when the drive is not properly closed.
Ensure that all safety covers are in place and securely fastened before applying power.
l
Danfoss A/S © 2024.10
CAUTION
Electrical Installation
AQ381425076031en-000201 / 130R1223 |
✓
37