Chapter 6. Function Description (I/O)
(Example) Programming P3 as SoftStrtCncl
P1 (Xcel-L)
P2 (Xcel-H)
P3 (SoftStartCncl)
Accel/Decel time
OFF
OFF
OFF
Accel/Decel 1
ON
OFF
OFF
Accel/Decel 2
OFF
ON
OFF
Accel/Decel 3
ON
ON
OFF
Accel/Decel 4
X
X
ON
The shortest Accel./Decel.
1.21) ASR Gain Sel (Switch Automatic Seed Regulator PI gain)
Using ‘ASR Gain Sel’ function, one of the two P and I gains can be selected for PI speed controller (ASR).
(Example) Programming P5 as ASR PI Gain
Code
LCD display
Description
Setting range
Unit
Setting value
I/O_05
P5 define
Multi-function input terminal P5
Define
ASR Gain Sel
CON_03
ASR P Gain1
ASR (Automatic Speed Regulator)
P Gain 1
0.0 ~ 200.0
%
CON_04
ASR I Gain1
ASR I Gain 1
0 ~ 50000
ms
CON_05
ASR LPF1
ASR LPF time constant 1
0 ~ 20000
ms
P5 : OFF
CON_06
ASR P Gain2
ASR P Gain 2
0.0 ~ 200.0
%
CON_07
ASR I Gain2
ASR I Gain 2
0 ~ 50000
ms
CON_08
ASR LPF2
ASR LPF time constant 2
0 ~ 20000
ms
P5 : ON
1.22) ASR P/PI Sel (ASR P/PI Transfer)
The ASR could be P controller or PI controller by MFi programmed as ASR P/PI Sel. When the ASR Gain is switched to
each other, the effective P gain could be changed gradually with the time ASR Ramp CON_09 in order to prevent the
shock in the machine because of the quick change of P gain.
(Programming Example) Programming P6 as ASR P/PI Sel.
Code
LCD display
Description
Setting range
Unit
Factory
setting
I/O_05
P5 define
Multi-function input terminal P5
Define
ASR P/PI Sel
1.23) Flux Ref Sel (Flux reference selection)
If the flux reference selection is ON, flux reference is set to the value which analog voltage (-10 ~ 10V) is converted
to % ratio of the rated flux.
1.24) PreExcite (Pre-excitation)
This function enables the motor to build up the flux by flowing the magnetizing current into it before run command is
ON so that speed control characteristic can be improved at the time of the acceleration of the motor.