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Name
Con-
stant
Display
Number
Proportional
Sets the proportional gain (PI con-
gain of the
trol) of the speed estimator during
speed estimator
speed search taking the setting of
during speed
N4-08 to be equivalent to a setting
search
of 1.0.
b3-13
Usually, there is no need to
change this setting. If, however,
the load inertia is large and over-
Srch Est P Gain
voltages occur during the search,
reduce this setting.
Rotation direc-
0: Disabled (operates with speci-
tion search
fied rotation direction)
selection
b3-14
1: Enabled (operates with rota-
Bidir Search
tion direction found by search)
Sel
Speed search
retrial current
Sets the current level to retry a
level (speed
speed search as a percentage, tak-
b3-17
estimation)
ing the Inverter rated current as
*2
100%.
SrchRestart
Lv1
Speed search
retrial detec-
Sets the time for detection in a
tion time (speed
b3-18
speed search retrial in units of
estimation)
*2
seconds.
SrchRestart
Time
Number of
speed search
retrials (speed
Sets the number of times that a
b3-19
estimation)
speed search can be retried.
*2
Num of
SrchRestr
Min. baseblock
Sets the Inverter's minimum base-
time
block time in units of one second,
when the Inverter is restarted after
power loss ridethrough.
Sets the time to approximately 0.7
L2-03
times the motor secondary circuit
PwrL Base-
time constant.
block t
When an overcurrent or overvolt-
age occurs when starting a speed
search or DC injection braking,
increase the set values.
Voltage recov-
Sets the time required to return
ery time
the Inverter output voltage to nor-
mal voltage at the completion of a
speed search, in units of one sec-
L2-04
ond.
PwrL V/F
Sets the time required to recover
Ramp t
from 0 V to the maximum volt-
age.
* 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.
Setting
Factory
Description
Range
0.1 to
2.0
0 or 1
0 to
200
0.00 to
1.00
0 to 10
0.1 to
5.0
0.0 to
5.0
Control Methods
Change
Open
during
V/f
Loop
Setting
Opera-
V/f
with
Vector
tion
PG
1
1.0%
No
No
No
No
1
No
A
A
A
150%
No
A
No
A
0.10 s
No
A
No
A
0
No
A
No
A
0.2 s
No
A
A
A
*3
0.3 s
No
A
A
A
*3
Continuing Operation
MEMO
Open
BUS
Flux
Loop
Regis-
Vec-
Vector
ter
tor
2
No
A
19DH
No
A
19EH
No
A
1F0H
No
A
1F1H
No
A
1F2H
A
A
487H
A
A
488H
67
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Troubleshooting
