YASKAWA Varispeed G7 Series, Instruction Manual, Page: 299 / 541

6
-66
 Related Constants
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
b3-01
Speed search
selection (cur-
rent detection
or speed calcu-
lation) Enables/disables the speed search
function for the Run Command
and sets the speed search method.
0:Disabled, speed calculation
1: Enabled, speed calculation
2: Disabled, current detection
3: Enabled, current detection
Speed Calculation:
When the search is started, the
motor speed is calculated and
acceleration/deceleration is
performed from the calculated
speed to the specified frequency
(motor direction is also
searched).
Current Detection:
The speed search is started from
the frequency when power was
momentarily lost and the
maximum frequency, and the
speed is detected at the search
current level.
0 to 3
2
*1
No A A A No A 191H
SpdSrch at Start
b3-02
Speed search
operating cur-
rent (current
detection) Sets the speed search operation
current 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 192H
SpdSrch Cur-
rent
b3-03
Speed search
deceleration
time (current
detection)
Sets the output frequency deceler-
ation 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 193H
SpdSrch Dec
Time
b3-05
Speed search
wait time (cur-
rent detection
or speed calcu-
lation) Sets the magnetic contactor oper-
ating delay time when there is a
magnetic contactor on the output
side of the Inverter. When a speed
search is performed after recover-
ing 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 195H
Search Delay
b3-10
Speed search
detection com-
pensation gain
(speed calcula-
tion) Operation restarts at a speed
obtained by multiplying the speed
from the speed search by the com-
pensation gain.
Increase this setting if overvolt-
ages occur when speed search is
performed after a long baseblock,
for example, in searches at
startup.
1.00 to
1.20
1.10 No A No A No A 19AH
Srch Detect
Comp
TOE-S616-60.1.book 66 ページ ２０１７年８月４日 金曜日 午後３時４１分