Cleveland Range inverter manual Troubleshooting & Maintenance, Must rotate

Chapter 6 - Troubleshooting & Maintenance

Inspection Location		Inspection Item			Period
			Inspection	Daily		year1	year2		Inspection Method	Criterion	Measuring
											Instrument
			Is there any abnormal oscillation	Ο					Turn OFF the power and turn	Must rotate
Cooling System	Cooling		or noise?			Ο			the fan by hand.	smoothly.
			Is the connection area loose?						Tighten the connections.	No fault
		Fan
			Is the displayed value correct?	Ο		Ο			Check the meter reading at	Check the	Voltmeter/
Display		Meter							the exterior of the panel	specified and	Ammeter etc.
										management
										values.
			Are there any abnormal vibrations	Ο					Auditory, sensory, visual	No fault
		All	or noise?	Ο					check.
Motor			Is there any unusual odor?						Check for overheat and
									damage.
	Insulation		Megger check (between the				Ο	Undo the U, V and W		Over 5MΩ	500V class
			output terminals and the ground						connections and tie the motor		Megger
	Resistor
			terminal)						wiring.

Note: Values in ( ) are for the 400V class inverters.

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