YASKAWA Varispeed G7 Series User Manual

10 -44
Control Block Diagram for Open-loop Vector 2 Control
Fig 10.26 Control Block Diagram for Open-loop Vector 2 Control (A1-02 = 4)
Soft starter
L3-04
U1-20
f0
+
U1-09
×
φ
*
iq
*
U1-02
iqfb
idfb
fout
−
+
−
U1-19
U1-18
e
*
C6-11
SFS output
Torque reference tro
Output
frequency
Motor secondary current
Motor
excitation
current
Drooping
IM
ASR
IRST
(Integral
short-circuit)
U1-21
ASR input
1
1+ST
d2-01
d2-03
E1-09
to
+
+
N5-01
C5-01
C5-04
C5-06
fnfb
+
+
fs
*
U1-22
ASR output
E1-04
E1-13
L7-01
L7-04
Torque limit
to
E2-03
IM
id
*
+
+
d6-03
C1-01
C1-02
tlim1
Torque limit 1
tlim2
Torque limit 2
tlim4
Torque limit 3
tlim5
Torque limit 4
Forward
Reverse
U1-05
Motor speed (estimated)
AφR
+
−
+
+
d6-05
φ
N5-02
N5-03
b7-01
b7-02
C3-01
E2-02
V/f
pattern
to
to
Torque limit
selection circuit
Stall prevention processing
(deceleration rate correction)
Inverter
Vector
calculator
Slip frequency
calculation
Field forcing
Feedforward
control
Speed
calculator
Acceleration and
deceleration times
Frequency
reference
U1-01
Speed
reference
fref
TOE-S616-60.1.book 44 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