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Speed Search: b3
User parameters for the speed search are shown in the following table.
Name
Parameter
Number
Display
Speed
Enables/disables and selects
Search
the speed search function at
Selection
start.
0: Speed Estimation Speed
Search Disable - Speed
search at start is disabled
(however the estimated
speed method is used for
multi-function input, power
loss ridethrough, auto fault
retry)
1: Speed Estimation Speed
Search Enable - The speed
estimation method of speed
search is enabled at run
command.
2: Current Detection Speed
Search Disable - Speed
b3-01
search at start is disabled
(however the current
SpdSrch at
detection method is used
Start
for multi-function input,
power loss ride through,
auto fault retry)
3: Current Detection Speed
Search Enable - The current
detection method of speed
search is enabled at run
command.
Speed Estimation Method:
Motor speed and direction are
measured using residual
motor flux.
Current Detection Method:
Motor speed is measured
using current feedback levels
(unidirectional only).
Speed
Used only when b3-01 = 2 or
Search
3. Sets speed search operating
Deactivation
current in units of percent, with
Current
drive rated current as 100%.
b3-02
Note: Normally not necessary
to change. If the drive won't
SpdSrch
run after a restart, lower this
Current
value.
Speed
Search
Used only when b3-01 = 2 or
Deceleration
b3-03
3. Sets the deceleration time
Time
during speed search.
SpdSrch
Dec Time
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Setting
Factory
Description
Range
Setting
0 to 3
0
to
100%
200
0.1
to
2.0 s
10.0
User Parameter Tables
Control Methods
Change
Open
V/f
during
Loop
V/f
with
Operation
Vector
PG
1
*
No
A
A
A
2
**
No
A
No
A
No
A
No
A
Open
MODBUS
Flux
Loop
Register
Vector
Vector
2
No
A
191H
No
A
192H
No
No
193H
15
5-
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Troubleshooting
