Toshiba VF-nC1 instruction manual , Acceleration/deceleration, , switching frequency

E6581090

★Enabled if the RV parameter (V/F control mode selection) is set to 3 (slip correction)

H : Used to set the rated current (A) of the motor. Enter the rated current printed on the motor’s rating plate.

H : Used to set the no-load current in percentage with respect to the rated current of the motor. Enter the value calculated from a motor test report value or the power factor printed on the rating plate of the motor.

H : Used to set the rated rotational speed (min-1) of the motor. Enter the rotating speed printed on the motor’s rating plate.

H : Used to adjust the response to the frequency command.

•Increase the value to increase response.

•Decrease the value to decrease response.

Adjust the value in increments of 10 (%) or so while checking the effective response.

H : Used to adjust the effective response to the frequency command.

•Increase the value if overshooting or hunting occurs.

•Increase the value if the speed reducer makes a gear noise.

•Increase the value if overvoltage tripping occurs on completion of deceleration.

6 Adjust the value in increments of 10 (%) or so while checking the effective response.

6.13Acceleration/deceleration patterns and acceleration/deceleration 2

CEE	: Acceleration time 1 (s)		H	: Acceleration time 2 (s)
	: Deceleration time 1 (s)			: Deceleration time 2 (s)
FGE			H
				: Acceleration/deceleration 1
			H
				and 2 switching frequency
Title	Function		Adjustment range		Default setting
CEE	Acceleration time 1 (s)	0.1～3000(s)			10.0
FGE	Deceleration time 1 (s)	0.1～3000(s)			10.0
H	Acceleration time 2 (s)	0.1～3000(s)			10.0
H	Deceleration time 2 (s)	0.1～3000(s)			10.0
	Acceleration/deceleration
H	1 and 2 switching	0～WN(Hz)			0
	frequency

■Switching between acceleration and deceleration

1)Changing the acceleration/deceleration time by adjusting the internal frequency (H)

–Changing the acceleration/deceleration time by adjusting the frequency set with H –

Output frequency [Hz]
Set frequency
H
0	①	②	③	④	Time (sec)

①Accelerated at the

gradient of time set with

CEE

②Accelerated at the gradient of time set with

H

③Decelerated at the

gradient of time set with H

④Decelerated at the gradient of time set with

FGE

F-20