Toshiba VF-nC1 instruction manual Cpu, Qhh, Oqhh, Tvt, Gtt, Ent, Gqhh, Jk/Nq, Jgcf, ／Gpf

E6581090

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Error	Alarm	Problem		Possible causes		Remedies
code	code
G	0033	CPU	•	A communications error occurs	•	Make a service call.
		communications		between control CPUs.
		error
G	0034	Excessive torque	•	The torque boost parameter	•	Decrease the setting of the
		boosted		XD is set too high.		torque boost parameter XD
			•	The impedance of the motor is	•	If no improvement results,
				too small.		contact Toshiba Technical
						Support Center.

* With a parameter, you can choose between trip-on and -off.

[Alarm information] Each message in the table is displayed to give a warning but does not cause the inverter to trip.

	Error	Problem		Possible causes		Remedies
	code
	QHH	ST terminal OFF	•	The ST-CC circuit is opened.	•	Close the ST-CC circuit.
	OQHH	Undervoltage in	•	The supply voltage between R,	•	Measure the main circuit supply
		main circuit		S and T is under voltage.		voltage.
						If the voltage is at a normal
						level, the inverter requires
						repairing.
	TVT[	Retry in process	•	The inverter is in the process of	•	The inverter is normal if it
				retry.		restarts after several tens of
			•	A momentary stop occurred.		seconds.
						The inverter restarts
						automatically. Be careful of
						the machine because it may
						suddenly restart.
	GTT	Frequency point	•	The frequency setting signals at	•	Set the frequency setting
		setting error		points 1 and 2 are set too close		signals at points 1 and 2 apart
				to each other.		from each other.
	ENT	Clear command	•	This message is displayed	•	Press the STOP key again to
		acceptable		when pressing the STOP key		clear the trip.
13				while an error code is
				displayed.
	GQHH	Emergency stop	•	The operation panel is used to	•	Press the STOP key for an
		command		stop the operation in automatic		emergency stop.
		acceptable		control or remote control mode.		To cancel the emergency stop,
						press any other key.
	JK/NQ	Setting error alarm /	•	An error is found in a setting	•	Check whether the setting is
		An error code and		when data is reading or writing.		made correctly.
		data are displayed
		alternately twice
		each.
	JGCF	Display of first/last	•	The first or last data item in the	•	Press the MON key to exit the
	／GPF	data items		CWJ/CWH data group is		data group.
				displayed.
	FD	DC braking	•	DC braking in process	• The message goes off in several
						tens of seconds if no problem
						occurs. Note)
	G	Flowing out of	•	The numeric value displayed	•	When a frequency is displayed,
		excess number of		(e.g., frequency) has a larger		decrease the setting of H
		digits		number of digits than the		(free unit).
				display panel. (The number
				next to the E refers to the
				excess number of digits.)
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				M-4