Delta VFD055B23A

5
VFD-B Series
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5-51
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This parameter is the software setting utilized in controlling the braking Resistor; please
refer to the DC voltage value on the DC-BUS for reference.
08 - 18
Base block Speed Search Factory Setting: 00
Settings 00 Speed search starts with last frequency command
01 Starts with minimum output frequency (Pr.01-05)
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This parameter determines the AC drive restart method after base block is enabled.
Output frequency
(H)
Output voltage
(V)
FWD Run
B.B.
1
5
2
3
4
Fig 1: B.B. Speed Search with Last Output Frequency Downward Timing Chart
(Speed Search Current Attains Speed Search Level)
08-06
Baseblock time for
speed search
output current
A
Time
1
2
Stop output voltage
3
Disable B.B. signal
4
Waiting time 08-06
Speed search
6
6
Synchronization speed detection
5
08-07
Current Limit for
Speed Search
Output frequency
(H)
Output voltage
(V)
FWD Run
B.B.
1
5
2
3
4
Fig 2: B.B. Speed Search with Last Output Frequency Downward Timing Chart
(Speed Search Current doesn't Attain Speed Search Level)
08-06
Speed search level
Output current
A
Time
1
Input B.B. signal
2
Stop output voltage
3
Disable B.B. signal
4
Waiting time
Speed search
6
6
Synchronization speed detection
5
08-07
Current Limit for
Speed Search