50
Number of PG-pulse (A-08):
In this parameter, set the pulse count of PG installed to the motor.
Setting of PWM carrier frequency
Console
panel
monitor
display
Contents
Setting range (selecting item)
Setting
resolution
Initialized
data
Unit
A-09
PWM carrier frequency
2.0
0.1
2.0
kHz
PWM carrier frequency (A-09):
This indicates the modulating carrier frequency of VF66B (DC motor drive) voltage output PWM.
Use 2.0 kHz for VF66B (DC motor drive).
Motor-mount encoder input method selection
Console
panel
monitor
display
Contents
Setting range (selecting item)
Setting
resolution
Initialized
data
Unit
A-10 PG
selection
1: AB phase input
2: Tachogenerator input (analog input(1))
[VFC66-Z TB1](AIN1)
3: Tachogenerator input (analog input(2))
[Optional board] (AIN2)
4: Tachogenerator input (analog input(3))
[Optional board] (AIN3)
- 1
-
PG selection (A-10):
This parameter is set to AB phase input (A-10 = 1) at initial setting. Change the setting in accordance with PG
mounted on the motor. Incidentally, when using a tachogenerator, set the rated speed of tachogenerator
(A-20) and voltage input to VF66B (DC motor drive) upon rated speed of tachogenerator (A-21).
Console
panel
monitor
display
Contents
Setting range (selecting item)
Setting
resolution
Initialize
d data
Unit
A-13 to
A-14
[For special adjustment]
*1
-
- -
-
*1: This item is for special adjustment. Leave the parameter data at the factory-initialized data.
Dead time compensation of IGBT chip in VF66B (DC motor drive)
Console
panel
monitor
display
Contents
Setting range (selecting item)
Setting
resolution
Initialized
data
Unit
A-11
Dead time compensation
(P Positive side)
0.00 to 9.99
0.01
Varies
with the
model of
VF66B
(DC
motor
drive)
*1
μ
sec
A-12
Dead time compensation
(P Negative side)
0.00 to 9.99
0.01
μ
sec
A-15
Dead time compensation
(N Positive side)
0.00 to 9.99
0.01
μ
sec
A-16
Dead time compensation
(N Negative side)
0.00 to 9.99
0.01
μ
sec
*1: For information on initialized data of parameters from the dead time compensation (P Positive side) (A-11) to dead
time compensation (N Negative side) (A-16), refer to the following table.
