5-39
5-4-4 Speed Loop (ASR) Structure
The following block diagram shows the structure of the speed loop.
Frequency
reference
Detected
speed
Secondary current reference
U1-21
U1-22
48
Note In vector flux control, the ASR’s P gain is the maximum frequency standard.
H
Regular Gain Settings (C5-01 and C5-02)
Parameter C5-01 sets the proportional gain of the speed loop (ASR), and C5-02 sets the integral time.
Both of these parameters can be changed during operation.
Parameter
Display
Setting range
Units
Default
Valid access levels*
number
p y
name
g
g
setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C5-01
ASR P Gain 1
0.00 to 300.00
Factor
20.00
---
B
---
B
C5-02
ASR I Time 1
0.000 to 10.000
s
0.500
---
B
---
B
Note B:
Basic or Advanced
---: Not applicable.
H
Low-speed Gain Settings (C5-03, C5-04, and C5-07)
Use these parameters to use different proportional gain and integral time settings for low-speed opera-
tion. Parameter C5-03 sets the proportional gain of the speed loop (ASR), and C5-04 sets the integral
time. Both of these parameters can be changed during operation.
Parameter
Display
Setting range
Units
Default
Valid access levels*
number
p y
name
g
g
setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C5-03
ASR P Gain 2
0.00 to 300.00
Factor
20.00
---
B
---
B
C5-04
ASR I Time 2
0.000 to 10.000
s
0.500
---
B
---
B
Note B:
Basic or Advanced
---: Not applicable.
Parameter C5-07 is the “ASR Gain Switching Frequency Level.” ASR P Gain 1 and ASR I Time 1 are
used when the frequency is above this level. Below this level, the proportional gain and integral time
approach ASR P Gain 2 and ASR I Time 2 as the frequency approaches zero. This parameter cannot be
changed during operation.
Parameter
Display name
Setting
Units
Default
Valid access levels*
number
p y
g
range
setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C5-07
ASR Gain SW Freq 0.0 to 400.0 Hz
0.0
Not applicable.
A
Note A:
Advanced
Basic Operation
Chapter 5
Summary of Contents for SYSDRIVE 3G3FV
Page 1: ...USER S MANUAL High function General purpose Inverter SYSDRIVE 3G3FV Cat No I516 E1 4 ...
Page 16: ...Chapter 1 Introduction 1 1 Function 1 2 Nomenclature 1 3 New Functions 1 ...
Page 33: ...Chapter 2 Installation 2 1 Mounting 2 2 Wiring 2 ...
Page 112: ...Chapter 4 Trial Operation 4 1 Procedure 4 2 Operation Example 4 ...
Page 289: ...Chapter 7 Parameter Lists 7 1 Initialize Mode Parameters 7 2 Program Mode Parameter List 7 ...
Page 366: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9 ...
Page 395: ...Chapter 10 Appendix 10 1 Notes on Using the Inverter for a Motor 10 ...