Hitachi X200 Series Troubleshooting Tips, Symptom/condition Probable Cause Solution

6−3

Troubleshooting Tips

The table below lists typical symptoms and the corresponding solution(s).

Symptom/condition		Probable Cause	Solution
		• Is the frequency command source	• Make sure the parameter
		A001 parameter setting correct?	setting A001 is correct
		• Is the Run command source A002	• Make sure the parameter
		parameter setting correct?	setting A002 is correct
		• Is power being supplied to terminals	• Check terminals [L1], [L2],
		[L1], [L2], and [L3/N]? If so, the	and [L3/N], then [U/T1],
		POWER lamp should be ON.	[V/T2], and [W/T3].
			• Turn ON the power supply or
			check fuses.
		• Is there an error code E X X	• Press the Func. key and
	The inverter	displayed?	determine the error type.
			Eliminate the error cause,
	outputs [U], [V],
			then clear the error (Reset).
	[W] are not
		• Are the signals to the intelligent	• Verify the terminal functions
	supplying
		input terminals correct?	for C001–C005 are correct.
	voltage
		• Is the Run Command active?	• Turn ON Run Command
The motor		• Is the [FW] terminal (or [RV])	enable.
		connected to [PCS] (via switch, etc.)	• Supply 24V to [FW] or [RV]
will not run
			terminal, if configured.
		• Has the frequency setting for F001	• Set the parameter for F001 to
		been set greater than zero?	a safe, non-zero value.
		• Are the control circuit terminals	• If the potentiometer is the
		[H], [O], and [L] connected to the	frequency setting source,
		potentiometer?	verify voltage at [O] > 0V.
		• Is the RS (reset) function or FRS	• Turn OFF the command(s)
		(free-run stop) function ON?
	Inverter	• Is the motor load too heavy?	• Reduce the load, and test the
	outputs [U],		motor independently.
	[V], [W] are
	supplying
	voltage.
	The optional	• Are the operational settings	• Check the operator type
	remote	between the remote operator and	setting.
	operator is	the inverter unit correct?
	used (SRW).
		• Are the connections of output	• Make connections according to
		terminals [U/T1], [V/T2], and [W/T3]	the phase sequence of the
		correct?	motor. In general:
The direction of the motor is		• Is the phase sequence of the motor	FWD = U-V-W, and REV=U-
reversed		forward or reverse with respect to	W-V.
		[U/T1], [V/T2], and [W/T3]?
		• Are the control terminals [FW] and	• Use terminal [FW] for
		[RV] wired correctly?	forward, and [RV] for reverse.
		• Is parameter F004 properly set?	• Set motor direction in F004.

Troubleshooting and Maintenance