YASKAWA Varispeed G7 Series User Manual

Control Block Diagrams
10- 43
10
Control Block Diagram for Open-loop Vector 1 Control
Fig 10.24 Control Block Diagram for Open-loop Vector 1 Control (A1-02 = 2)
Control Block Diagram for Flux Vector Control
Fig 10.25 Control Block Diagram for Flux Vector Control (A1-02 = 3)
Soft starter
to
L3-01 L3-04
U1-20
f0
+
1
ST
+
−
U1-09
×
φ
*
iq
*
(AFR)
+
−
IM
Inverter
U1-02
tlim1
Torque limit 1
tlim2
Torque limit 2
tlim4
Torque limit 3
tlim5
Torque limit 4
Torque limit
selection circuit
E2-03
IM
id
*
Torque current
compensation
iqfb
idfb
Forward
Reverse
U1-05
fout
−
+
+
+
−
k
1+ST
N2-01
N2-02
d2-01 d2-03
E1-09
to
V/f
pattern
U1-19
U1-18
C1-01 C1-02
C4-01 C4-02
L7-01
L7-04
Torque limit
to
E1-04
E1-13
e
*
SFS output
Torque reference tro
Output frequency
Motor secondary
current
to
C3-01 C3-04
fs
*
C6-02 C6-03
Stall prevention processing
(acceleration and deceleration
rate correction)
Motor speed
(estimated)
to
Vector
calculator
Motor
excitation
current
Acceleration and
deceleration times
Speed
calculation
Slip
compensation
Frequency
reference
U1-01
Speed
reference
fref
Soft starter
L3-04
U1-20
f0
+
U1-09
×
φ
*
iq
*
Inverter
Vector
calculator
U1-02
tlim1
Torque limit 1
tlim2
Torque limit 2
tlim4
Torque limit 3
tlim5
Torque limit 4
E2-03
IM
id
*
iqfb
idfb
Forward
Reverse
U1-05
fout
−
+
−
U1-19
U1-18
L7-01
L7-04
Torque limit
to
e
*
SFS output
Torque reference tro
Output frequency
Motor secondary current
Motor excitation
current
Motor speed
Drooping
IM
PG
ASR
IRST
(Integral
short-circuit)
U1-21
ASR input
1
1+ST
Zero-servo
d2-01
d2-03
E1-09
to
+
C5-01
C5-04
C5-06
fnfb
Field forcing
+
+
+
+
fs*
U1-22
ASR output
E1-04
E1-13
to
to
d6-03
+
C1-01 C1-02
N5-02
N5-03
C6-02 C6-03
E2-02C3-01
b9-01 b9-02
b7-01 b7-02
N5-01
Stall prevention processing
(deceleration rate correction)
V/f
pattern
Slip frequency
calculation
Torque limit
selection circuit
Speed
detector
Acceleration and
deceleration times
Multi-function
input = 72
Feedforward
control
Frequency
reference
U1-01
Speed
reference
fref
TOE-S616-60.1.book 43 ページ ２０１７年８月４日 金曜日 午後３時４１分

YASKAWA Varispeed G7 Series Specifications

General

Brand	YASKAWA
Model	Varispeed G7 Series
Category	Inverter
Language	English