Chapter 4 Parameters
VFD-EL-W
4-70
The selected operation after power loss in Pr.08.04 is only executed when the maximum allowable power loss
time is
5 seconds and the AC motor drive keypad displays “Lu”.
If the AC motor drive is powered off due to overload, even if the maximum allowable power loss time is
5
seconds, the drive does not execute the operation mode you set for Pr.08.04. In that case it starts up
normally.
08.06
Base Block Speed Search
Default: 1
Settings
0
Disable
1
Speed search starts with the last frequency command
2
Speed search starts with the minimum output frequency (Pr.01.05)
Determines the AC motor drive restart method after an External Base Block is enabled.
Output frequency
(H)
Output voltage(V)
08.08 Current Limit
for Speed SearchSpeed
FWD Run
Time
B.B.
Fig 1:B.B. Speed Search with Last Output Frequency Downward Timing Chart
(Speed Search Current Attains Speed Search Level)
A
Input B.B. signal
Stop output voltage
Disable B.B. signal
Waiting time 08.07
Speed Search
Synchronization speed detection
Time
B.B.
Fig 2: B.B. Speed Search with Last Output Frequency Downward Timing Chart
(Speed Search Current doesn't Attain Speed Search Level)
A
Input B.B. signal
Stop output voltage
Disable B.B. signal
Waiting time 08.07
Speed Search
Synchronization speed detection
Output frequency
(H)
08.08 Current Limit
for Speed SearchSpeed
FWD Run
Time
B.B.
Fig3: B.B. Speed Search with Minimum Output Frequency Upward Timing Chart
A
Input B.B. signal
Stop output voltage
Disable B.B. signal
Waiting time 08.07
Restart
Synchronization speed detection
Keep accelerating
A
Output frequency
(H)
06.01
Over current
stall prevention
during acceleration
FWD Run
08.07
Base Block Time for Speed Search (B.B.)
Unit: 0.1
Summary of Contents for VFD-EL-W Series
Page 7: ...v This page intentionally left blank ...
Page 21: ...Chapter 1 Introduction VFD EL W 1 14 This page intentionally left blank ...
Page 34: ...Chapter 2 Installation and Wiring VFD EL W 2 13 This page intentionally left blank ...
Page 42: ...Chapter 3 Keypad and Start up VFD EL W 3 8 This page intentionally left blank ...
Page 150: ...Chapter 4 Parameters VFD EL W 4 108 This page intentionally left blank ...
Page 152: ...Chapter 5 Troubleshooting VFD EL W 5 2 5 1 Over Current oc ...
Page 153: ...Chapter 5 Troubleshooting VFD EL W 5 3 5 2 Over Voltage ov ...
Page 154: ...Chapter 5 Troubleshooting VFD EL W 5 4 5 3 Low Voltage Lv ...
Page 155: ...Chapter 5 Troubleshooting VFD EL W 5 5 5 4 Overheat oH1 ...
Page 156: ...Chapter 5 Troubleshooting VFD EL W 5 6 5 5 Overload oL ...
Page 157: ...Chapter 5 Troubleshooting VFD EL W 5 7 5 6 Keypad Display is Abnormal 5 7 Phase Loss PHL ...
Page 158: ...Chapter 5 Troubleshooting VFD EL W 5 8 5 8 Motor Does Not Run ...
Page 159: ...Chapter 5 Troubleshooting VFD EL W 5 9 5 9 Motor Speed Cannot be Changed ...
Page 163: ...Chapter 5 Troubleshooting VFD EL W 5 13 This page intentionally left blank ...
Page 179: ...Appendix A Specifications VFD EL W A 6 This page intentionally left blank ...