6
-56
Speed
Search
after
Short
Baseblock
(during
Power
Loss
Recovery,
etc.)
•
Loss
Time Shorter Than the Minimum Baseblock Time (L2-03)
Fig 6.43 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 6.44 Speed Search After Baseblock (Estimated Speed: Loss Time > L2-03)
n
Current
Detection
Speed
Search
The
time charts for current detection speed search is shown below.
Speed
Search
at
Startup
The
time chart when speed search at startup or external speed search command is selected is shown below.
AC power supply
Output frequency
Output current
OFF
ON
Start using
speed detected
Set frequency
reference
Minimum baseblock time (L2-03) x 0.75*1
10 ms
*1 Baseblock time may be reduced by the output frequency
immediately before the baseblock.
*2 After AC power supply recovery, motor waits for the
minimum Speed Search Wait Time (b3-05).
*2
AC power supply
Output frequency
Output current
OFF
ON
Start using speed detected
Set frequency
reference
Minimum baseblock time
(L2-03)
10 ms
Speed Search Wait Time
(b3-05)
Содержание SYSDRIVE 3G3RV
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