User Constant Tables
5-13
Speed Search: b3
User constants for the speed search 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
b3-01
Speed
search
selection
(current
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
*
No A A A No A 191H 6-65
起动速度搜
索
b3-02
Speed
search oper-
ating current
(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%
*
No A No A No A 192H 6-65
速度搜索电
流
b3-03
Speed
search
decelera-
tion time
(current
detection)
Sets the output frequency
deceleration time during speed
search in 1-second units.
Set the time for deceleration
from the maximum output fre-
quency to the minimum output
frequency.
0.1 to
10.0
2.0 s No A No A No No 193H 6-65
搜索减速时
间
b3-05
Speed
search wait
time (cur-
rent detec-
tion or
speed calcu-
lation)
Sets the magnetic contactor
operating delay time when
there is a magnetic 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 195H 6-65
搜索延迟时
间
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