Toshiba VF-AS1 instruction manual E6581301

!							E6581301!
	(Continued overleaf)
	(Continued)
			Parameters in	•Parameters are being initialized to		•Normal if the message disappears after a while
	￿￿￿￿￿		the process of	default values.		(several seconds to several tens of seconds).
			initialization
	￿￿￿￿		In auto-tuning 1	•Auto-tuning 1 in process.		•Normal if it the message disappears after a few
						seconds.
			Auto-stop	•The automatic stop function of		•This function is deactivated when the command
			because of	￿￿￿￿ is being performed.		frequency becomes 0.2Hz or more higher than the
	￿￿￿￿￿		continuous			lower-limit frequency (LL) or when a command for
			operation at the			stopping operation is entered.
			lower-limit
			frequency
			Momentary	•The deceleration stop function of		•To restart operation, reset the inverter or input an
			power failure	￿￿￿ (regenerative power		operation signal again.
	￿￿￿￿￿		slowdown stop	ride-through control) is activated.
			prohibition
			function
			activated.
	￿￿￿￿/		Display of	•First and last data in the ￿￿￿		•To exit from the group, press the MODE key.
	￿￿￿￿		first/last data	group.
			items
				•Learning for brake sequence		•To cancel learning, suspend it and set learning
	￿￿￿￿		During learning	operation or light-load high-speed		parameters ￿￿￿￿ to ￿.
				operation is currently in progress.
				•Braking operation is not performed		•Brake signal output (￿￿, ￿￿) is not assigned to
			Brake sequence	normally.		the control output terminal.
	￿￿￿￿￿			•The load is too heavy.		•The brake function mode selection parameter
			learning error	•There are some operation errors.		(￿￿￿￿) is not set.
						•Learning is performed while the load is lifted
			Light-load	•There are some errors in the		•Check whether the learning operation for light-load
	￿￿￿￿￿		high-speed	operation for learning for light-load		high-speed operation is performed correctly.
			learning	high-speed operation.		￿ Refer to 6.16.
			operation error
				•Learning operation for light-load		•Check the load.
			Light-load	high-speed operation is performed		•Check the motor constant setting.
	￿￿￿￿￿		high-speed	while the load is lifted.
			learning	•Motor constants (￿￿, ￿￿￿,
			overload error	￿￿￿￿ to ￿￿￿￿) are not
				entered correctly.
				•This message appears if the		•When this message is displayed, all the keys are
			Key operation	ENTER key is pressed and held		operational. To prohibit key operation again, turn
	￿￿￿	￿	permitted	down for 5 seconds or more when		off the inverter and then turn it back on.
			temporarily	key operation is prohibited by
				￿￿￿￿.
	Note: In the case of DC injection breaking ON/OFF function is selected for an input terminal; if “￿￿” disappears as a
	result of open-circuit between the terminal and CC, it is normal.
	[Pre-alarm display]
	Error		Description		Possible causes		Remedies
	code
	￿￿		Overcurrent pre-alarm		Same as ￿￿ (Overcurrent)		Same as ￿￿ (Overcurrent)
	￿￿		Overvoltage pre-alarm		Same as ￿￿ (Overvoltage)		Same as ￿￿ (Overvoltage)
			Achieving PBR operation		￿ blink while PBR is operating is not		￿ blink while PBR is operating is not
			level		an error.		an error.
	￿￿		Overload pre-alarm		Same as ￿￿￿ and ￿￿￿ (Overload)		Same as ￿￿￿ and ￿￿￿ (Overload)
	￿￿		Overheat pre-alarm		Same as ￿￿ (Overheat)		Same as ￿￿ (Overheat)
13	￿￿		Communication error		•Various transmission errors occur		•For measures to correct various kinds
					when computer is linked up with		of data transmission errors, refer to
					inverter system.		the instruction manual for the!
					•Various transmission errors occur in		communications device used
					inverter to inverter communication		specified in Section 6.42.
					(slave side). Time-out or trip in master		•Check the master inverter.
					side.

If two or more problems arise simultaneously, one of the following alarms appears and blinks.

￿￿, ￿￿, ￿￿, ￿￿￿, ……, ￿￿￿￿

The blinking alarms ￿, ￿, ￿, ￿, ￿￿are displayed in this order from left to right.

M-6