YASKAWA Varispeed G7 Series User Manual

User Constant Tables
5- 21
Zero-servo: b9
User constants for dwell functions are shown in the following table.
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Regis-
ter
Page
Display
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2
b9-01
Zero-servo
gain
Adjust the strength of the
zero-servo lock.
Enabled when the “zero-servo
command” is set for the
multi-function input. When
the zero-servo command has
been input and the frequency
reference drop below exci-
tation level (b2-01), a posi-
tion control loop is created
and the motor stops. Increas-
ing the zero-servo gain in turn
increases the strength of the
lock. Increasing it by too
much will cause oscillation.
0 to
100
5 No No No No A No 1DAH 6-147
Zero Servo
Gain
b9-02
Zero-servo
completion
width
Sets the output width of the
P-lock completion signal.
Enabled when the “zero-servo
completion (end)” is set for a
multi-function input. The
zero-servo completion signal
is ON when the current posi-
tion is within the range (the
zero-servo position + zero-
servo completion width.)
Set the allowable position dis-
placement from the zero-
servo position to 4 times the
pulse rate of the PG (pulse
generator, encoder) in use.
0 to
16383
10 No No No No A No 1DBH 6-147
Zero Servo
Count
TOE-S616-60.1.book 21 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