YASKAWA F7 Programming Manual page 24

Run command
Output frequency
Output current
AC power supply
Output frequency
Output current
Minimum baseblock time (L2-03)
after momentary power loss where the power loss time is less than the minimum baseblock time
AC power supply
Output frequency
Output current
after momentary power loss where the power loss time exceeds the minimum baseblock time
Setting of b3-01
0
1
2
3
Note: When parameter A1-02 = 0 (V/f control without PG) or 2 (open loop vector) the factory default setting is 2.
When parameter A1-02 = 1 (V/f control with PG) the factory default setting is 3.
OFF ON
Maximum output
frequency or
set frequency
Minimum baseblock time
(L2-03)
Fig. 12 Speed Search (Current Detection Method) at Startup
ON OFF
*1
*2
Fig. 13 Speed Search (Current Detection Method) -
ON
Minimum baseblock time
(L2-03)
Fig. 14 Speed Search (Current Detection Method) -
Speed Search Settings and Methods
Automatic Speed Search at RUN command
No
Yes - Speed Estimation
No
Yes - Current Detection
Programming 16
Deceleration time set in b3-03
*
* Lower limit is set using Speed Search Time (b3-05).
Output frequency before power loss
Deceleration
time set in b3-03
speed search operating current
*1 Baseblock time may be reduced by the output frequency
immediately before baseblock.
*2 After AC power supply recovery, motor waits for the minimum
Speed Search Wait Time (b2-03).
OFF
Output frequency before power loss
Deceleration time set in b3-03
Deceleration speed set in b3-03
Speed search wait time (b3-05)
Set frequency
reference
Speed search current level
b3-02
Search Delay Time (b3-05).
Set frequency
reference
b3-02
b3-05
Set frequency
reference
b3-02
Speed search operating time
Speed Search Method Used for
Multi-function inputs, momentary power loss,
baseblock, fault retry
Yes - Speed Estimation
Yes - Speed Estimation
Yes - Current Detection
Yes - Current Detection