Toshiba VF-AS1 instruction manual E6581301

!				E6581301!
	(Continued)
			•Motor control CPU is defective.	•Contact your Toshiba distributor.
			•The drive circuit board in the
	￿￿￿￿￿	Internal circuit	inverter was damaged.
		error	•Power device is defective.
			•Using braking function in not	•If the braking function is used, operate a motor in
			￿￿=￿,￿,￿,￿,￿ mode	￿￿=￿,￿,￿,￿,￿ mode
			•The control voltage between +SU	•Check whether the voltage between +SU and CC
		Control power	and CC terminals is too low.	terminals is DC20V or more.
	￿￿￿￿￿	backup	•Control power is not supplied	•Set ￿￿￿￿ to 0 if a control power backup device
		undervoltage	through +SU and CC terminals.	is not connected to +SU and CC terminals.
		error	•The parameter ￿￿￿￿ is not set	To reset the inverter that has been tripped
			correctly.	because of this error, turn it off and then back on.
		Step-out (for	•The motor shaft is locked.	•Unlock the motor shaft.
	￿￿￿￿￿	PM motors	•One output phase is open.	•Check the interconnect cables between the
		only)	•An impact load is applied.	inverter and the motor.

Note: Please contact us if you find any trips other than the above.

[Alarm] The following are messages only. No trip is developed.

Error	Problem	Possible causes	Remedies
code
		•ST terminal is in open-circuit.	•Check SW1 select
￿￿￿￿	ST signal OFF		•Close ST-CC circuit (Sink logic)
			•Close ST-P24/PLC circuit (Source logic)
		•The control voltage between +SU	•Check whether the voltage between +SU and CC
		and CC terminals is too low.	terminals is DC20V or more.
		•Control power is not supplied	•Set ￿￿￿￿ to ￿ if a control power backup device
	Control power	through +SU and CC terminals.	is not connected to +SU and CC terminals.
￿￿￿￿￿	backup	•The parameter ￿￿￿￿ is not set	In the event of a ￿￿￿￿ error, the inverter will not
	undervoltage	correctly.	be reset automatically even if the control voltage
			between +SU and CC terminals returns to its
			normal level. To reset the inverter, turn it off and
			then back it on.
		•The supply voltage between R, S	•Measure the main circuit supply voltage.
￿￿￿￿￿	Undervoltage in	and T is under voltage.	If the voltage is at a normal level, the inverter
	main circuit	•Trouble of rush current restraint	requires repairing.
		circuit or DC circuit fuse.	•Contact your Toshiba distributor.
		•The inverter is in the process of	•The inverter is normal if it restarts after several
￿￿￿￿￿	Retry	retry.	tens of seconds. The inverter restarts
		•A momentary stop occurred.	automatically. Be careful of the machine because
			it may suddenly restart.
	Point setting	•The frequency setting signals at	•Set the frequency setting signals at points 1 and 2
￿￿￿￿￿		points 1 and 2 are set too close to	apart from each other.
	alarm	each other.
￿￿￿￿￿	Key failure	•The same key is input continuously	•Check the operation panel.
	alarm	more than 20 seconds.
		•This message is displayed when	•Press the STOP key again to clear the trip.
	Clear enabling	pressing the STOP key while an
￿￿￿￿		error code is displayed.
	indication	• Input terminal RES signal is ON	•Turn off the input terminal RES signal.
		during trip display.
	Emergency stop	•The operation panel is used to	•Press the STOP key for an emergency stop. To
￿￿￿￿￿	enabling	stop the operation in automatic	cancel the emergency stop, press any other key.
	indication	control or remote control mode.
	Setting error	•An error is found in a setting when	•Check whether the setting is made correctly.
	alarm	data is reading or writing.
	An error code
￿￿/￿￿				13
	and data are
	displayed
	alternately twice
	each.
￿￿￿	DC braking	•DC braking in process	•The message goes off in several tens of seconds
		•Field forcing in process	if no problem occurs. [Note]
￿￿￿￿￿	Shaft fixing in	•Motor shaft fixing control is in	•If the message disappears by stop command
	control	process.	(ST-CC open), it is normal.
		•The digit number of the item	•For indication of frequency, set multiplying rate
￿￿￿		displayed, e.g., frequency, is in	(￿￿￿￿) lower. (Parameter setting that results in
	Panel indication	excess of the specified digit	overflow is of course valid.)
￿￿￿
￿￿￿	overflow	number.
		(Number of overflowing digits is
		indicated.)

M-5