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Speed Search: b3
User parameters for the speed search are shown in the following table.
Name
Param-
eter
Number
Display
Enables/disables the speed
search function for the Run
Command and sets the speed
search method.
0:Disabled, speed
Speed
calculation
search
1: Enabled, speed
selection
calculation
(current
2: Disabled, current
detection or
detection
speed calcu-
3: Enabled, current
lation)
detection
Speed Calculation:
When the search is started,
b3-01
the motor speed is
calculated and acceleration/
deceleration is performed
from the calculated speed to
the specified frequency
(motor direction is also
searched).
SpdSrch at
Current Detection:
Start
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.
Speed
Sets the speed search opera-
search oper-
tion current as a percentage,
ating cur-
taking the Inverter rated cur-
rent (current
rent as 100%.
detection)
b3-02
Not usually necessary to set.
When restarting is not possi-
SpdSrch
ble with the factory settings,
Current
reduce the value.
Speed
Sets the output frequency
search
deceleration time during
decelera-
speed search in 1-second
tion time
units.
b3-03
(current
Set the time for deceleration
detection)
from the maximum output
frequency to the minimum
SpdSrch
output frequency.
Dec Time
Setting
Description
Range
0 to 3
0 to
200
0.1 to
10.0
Control Methods
Change
Factory
during
V/f
Open
Setting
Opera-
V/f
with
Loop
tion
PG
Vector
*1
No
A
A
2
150%
No
A
No
*1 *2
2.0 s
No
A
No
User Parameter Tables
Regis-
Flux
Page
ter
Vec-
tor
A
No
191H 6-70
A
No
192H 6-70
A
No
193H 6-70
5-
13
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