4.1.2 Start-up Check List
CAUTION
Before applying power to the unit, inspect the entire installation as detailed in Table 4.1. Check mark those items when
completed.
Inspect for Description
☑
Auxiliary equipment
•
Look for auxiliary equipment, switches, disconnects, or input fuses/circuit
breakers that may reside on the input power side of the adjustable frequency
drive or 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.
•
Remove power factor correction caps on motor(s), if present.
Cable routing
•
Ensure that input power, motor wiring, and control wiring are separated or in
three separate metallic conduits for high frequency noise 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.
•
The use of shielded cable or twisted pair is recommended. Ensure that the
shield is terminated correctly.
Cooling clearance
•
Measure to make sure that the top and bottom clearance is adequate to
ensure proper airflow for cooling.
EMC considerations
•
Check for proper installation regarding electromagnetic compatibility.
Environmental considerations
•
See equipment label for the maximum ambient operating temperature limits.
•
Humidity levels must be 5%–95% non-condensing.
Fusing and circuit breakers
•
Check for proper fusing or circuit breakers.
•
Check that all fuses are inserted firmly and in operational condition and that all
circuit breakers are in the open position.
Grounding
•
The unit requires a ground wire from its chassis to the building ground.
•
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 ground.
Input and output power wiring
•
Check for loose connections.
•
Check that motor and line power are in separate conduits or separated
shielded cables.
Panel interior
•
Inspect to ensure that the unit interior is free of dirt, metal chips, moisture, and
corrosion.
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 4.1 Start-up Check List
Start Up and Functional Tes... AF-600 FP Quick Guide
14 DET-759A
4
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