YASKAWA Varispeed G7 Series User Manual

Continuing Operation
6- 67
* 1. The factory setting will change when the control method is changed. The open-loop vector 1 control factory settings are given.
* 2. Applicable for G7-Series Inverters with software versions PRG 1039 and later.
* 3. The factory setting depends on the Inverter capacity. The value for a 200 V Class Inverter of 0.4 kW is given.
b3-13
Proportional
gain of the
speed estimator
during speed
search
Sets the proportional gain (PI con-
trol) of the speed estimator during
speed search taking the setting of
N4-08 to be equivalent to a setting
of 1.0.
Usually, there is no need to
change this setting. If, however,
the load inertia is large and over-
voltages occur during the search,
reduce this setting.
0.1 to
2.0
1.0% No No No No No A 19DH
Srch Est P Gain
b3-14
Rotation direc-
tion search
selection
0: Disabled (operates with speci-
fied rotation direction)
1: Enabled (operates with rota-
tion direction found by search)
0 or 1 1 No A A A No A 19EH
Bidir Search
Sel
b3-17
*2
Speed search
retrial current
level (speed
estimation)
Sets the current level to retry a
speed search as a percentage, tak-
ing the Inverter rated current as
100%.
0 to
200
150% No A No A No A 1F0H
SrchRestart
Lv1
b3-18
*2
Speed search
retrial detec-
tion time (speed
estimation)
Sets the time for detection in a
speed search retrial in units of
seconds.
0.00 to
1.00
0.10 s No A No A No A 1F1H
SrchRestart
Time
b3-19
*2
Number of
speed search
retrials (speed
estimation)
Sets the number of times that a
speed search can be retried.
0 to 10 0 No A No A No A 1F2H
Num of
SrchRestr
L2-03
Min. baseblock
time
Sets the Inverter's minimum base-
block time in units of one second,
when the Inverter is restarted after
power loss ridethrough.
Sets the time to approximately 0.7
times the motor secondary circuit
time constant.
When an overcurrent or overvolt-
age occurs when starting a speed
search or DC injection braking,
increase the set values.
0.1 to
5.0
0.2 s
*3
NoAAAAA487H
PwrL Base-
block t
L2-04
Voltage recov-
ery time
Sets the time required to return
the Inverter output voltage to nor-
mal voltage at the completion of a
speed search, in units of one sec-
ond.
Sets the time required to recover
from 0 V to the maximum volt-
age.
0.0 to
5.0
0.3 s
*3
NoAAAAA488H
PwrL V/F
Ramp t
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2
TOE-S616-60.1.book 67 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