Chapter 5 Parameters
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VFD-BW Series
5-82
Revision May 2009, BWE0, SW V1.05
This parameter will be invalid for models above 15kW/20hp for which VFDB brake unit must be
used.
08 - 18
Base Block Speed Search
Factory Setting: 00
Settings
00
Speed
search
starts with last frequency command
01
Speed search starts with minimum output frequency (Pr.01-05)
This parameter determines the AC motor drive restart method after External Base Block is
enabled.
B.B.
A
Input B.B. signal
Stop output voltage
Disable B.B. signal
Waiting time 08-06
Speed search
Synchronization speed detection
time
Fig. 1: B.B. speed search with last output frequency downward timing chart
FWD Run
Output current
Output voltage(V)
Output frequency
(H)
08-07
Current limit for
speed search
B.B.
A
Input B.B. signal
Stop output voltage
Disable B.B. signal
Waiting time 08-06
Speed search
Synchronization speed detection
Fig. 2: B.B. speed search with last output frequency downward timing chart
FWD Run
Output current
Output voltage(V)
Output frequency
(H)
08-07
Current limit for
speed search
Time
Summary of Contents for VFD-BW Series
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Page 222: ...Appendix B Accessories VFD BW Series Revision May 2009 BWE0 SW V1 05 B 15 Order P N 150TDS84C ...