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YASKAWA Varispeed CIMR-G7A - Page 264

YASKAWA Varispeed CIMR-G7A
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Continuing Operation
6-63
b3-02
Speed search
operating cur-
rent (current
detection)
Sets the speed search operation cur-
rent as a percentage, taking the
Inverter rated current as 100%.
Not usually necessary to set. When
restarting is not possible with the
factory settings, reduce the value.
0 to
200
100%
*1
No A No A No A
SpdSrch Cur-
rent
b3-03
Speed search
deceleration
time (current
detection)
Sets the output frequency decelera-
tion time during speed search in 1-
second units.
Set the time for deceleration from
the maximum output frequency to
the minimum output frequency.
0.1 to
10.0
2.0 s No A No A No No
SpdSrch Dec
Time
b3-05
Speed search
wait time
(current detec-
tion or speed
calculation)
Sets the magnetic contactor operat-
ing delay time when there is a mag-
netic contactor on the output side of
the Inverter. When a speed search is
performed after recovering from a
momentary power loss, the search
operation is delayed by the time set
here.
0.0 to
20.0
0.2 s
No A A A A A
Search Delay
b3-10
Speed search
detection
compensation
gain (speed
calculation)
Operation restarts at a speed
obtained by multiplying the speed
from the speed search by the com-
pensation gain.
Increase this setting if overvoltages
occur when speed search is per-
formed after a long baseblock, for
example, in searches at startup.
1.00 to
1.20
1.10 No A No A No A
Srch Detect
Comp
b3-13
Proportional
gain of the
speed estima-
tor 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 overvoltages
occur during the search, reduce this
setting.
0.1 to
2.0
1.0% No No No No No A
Srch Est P
Gain
b3-14
Rotation
direction
search selec-
tion
0: Disabled (operates with speci-
fied rotation direction)
1: Enabled (operates with rotation
direction found by search)
0 or 1 1 No A A A No A
Bidir Search
Sel
L2-03
Min.
baseblock
time
Sets the Inverter's minimum
baseblock time in units of one sec-
ond, 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
overvoltage occurs when starting a
speed search or DC injection brak-
ing, increase the set values.
0.1 to
5.0
0.5 s
*2
No A A A A A
PwrL
Baseblock t
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2

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