Continuing Operation
6
-
41
Speed Search after Short Baseblock (during Power Loss Recovery, etc.)
•
Loss Time shorter than the Minimum Baseblock Time (L2-03)
Fig 6.30 Speed Search after Baseblock (When Estimated Speed: Loss Time Is Set in L2-03)
•
Loss Time longer than the Minimum Baseblock Time (L2-03)
Fig 6.31 Speed Search after Baseblock (Estimated Speed: Loss Time > L2-03)
AC power supply
ON
OFF
Output current
Minimum baseblock time (L2-03) x 0.75 *1
10 ms
Start using
speed detected
Set frequency
reference
*1. Baseblock time may be reduced by the output frequency
immediately before the baseblock.
*2. After AC power supply recorvery, motor waits for the
minimum Speed Search Wait Time (b3-05).
Set frequency
reference
Minimum baseblock time
(L2-03)
Speed Search Wait Time
(b3-05)
Note: If the frequency immediately before the baseblock is low or the power supply break time is long,
operation may be the same as the search in case 1.
AC power supply
ON
OFF
Output frequency
Output current
Start using speed detected
10 ms