Chapter 4 Parameters
4-126
08.06
Base Block Speed Search
Factory Setting: 1
Settings
0
Disable
1
Speed search starts with last frequency
2
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(one of Pr.04.05~04.08 is set to 9).
The speed search actions between Pr.08.04 and Pr.08.06 are the same.
The priority of Pr.08.06 is higher than Pr.08.04. That is, Pr.08.04 will be invalid after Pr.08.06 is
set and the speed search will act by Pr.08.06.
Related parameters: Pr.08.07(Baseblock Time for Speed Search (BB)), Pr.04.05(Multi-function
Input Terminal (MI3)), Pr.04.06(Multi-function Input Terminal (MI4)), Pr.04.07(Multi-function
Input Terminal (MI5)) and Pr.04.08(Multi-function Input Terminal (MI6))
Output frequency
(H)
Output voltage(V)
08.08 Current Limit
for Speed SearchSpeed
Output current ( A)
FWD Run
Time
B.B.
Fig 1:B.B. Speed Search with Las t Frequenc y Downward Ti ming Chart
A
Input B.B. signal
Stop output v ol tage
Dis abl e B.B. signal
Wai ting ti me 08.07
Speed Searc h
Synchronization s peed detection
Time
B.B.
Fig 2: B.B. Speed Search with Min. Output Frequency Upward Timing C hart
A
Input B.B. si gnal
Stop output v oltage
Dis abl e B.B. signal
Wai ting time 08.07
Speed Searc h
Synchronization speed detec tion
Output frequency
(H)
08.08 Current Limit
for Speed SearchSpeed
FWD Run
