Programming 5 - 64
L4 Speed Command Loss Detection
L4-05 Frequency Reference Loss Detection Selection
L4-06 Frequency Reference at Loss of Frequency Reference
Setting Range:
0.0 to 100.0% of previous speed command
Factory Default: 80.0% of previous speed command
The Drive can be configured to compensate for the loss of its external speed command. An external speed command is
considered lost if it drops 90% of its value in 400mS or less.
Fig 5.34 Loss of Frequency Reference Timing Diagram
To enable Frequency loss detection, set L4-05= “1: Enabled @ % of PrevRef”. If Frequency Reference Loss Detection is
enabled and the reference is lost, the Drive continues to operate at the speed commanded by parameter L4-06. When the speed
command returns, the Drive again follows the speed command.
Setting H2-01/H2-02= “C: Loss of Ref”, configures a digital output as a Frequency Reference Loss indication only when
L4-05= “1: Enabled @ % of PrevRef”.
Setting
Description
0
Disabled (
factory default
)
1
Enabled @ % of PrevRef
t
Frequency
Reference
Output
Frequency
t
10%
T
L4-06
100%
T = 400mS
100%
10%
TIME
Содержание E7LBA002
Страница 1: ...E7L Drive Bypass Technical Manual Model E7L Document Number TM E7L 01 ...
Страница 8: ...Introduction vi Notes ...
Страница 12: ...Table of Contents x Notes ...
Страница 54: ...Electrical Installation 2 22 Wiring Diagram ...
Страница 55: ...Electrical Installation 2 23 ...
Страница 87: ...Start Up and Operation 4 9 Notes ...
Страница 202: ...Diagnostic Troubleshooting 6 30 Notes ...
Страница 248: ...Capacity Related Parameters B 6 Notes ...
Страница 279: ...Communications D 27 Note ...
Страница 280: ...Communications D 28 ...
Страница 292: ...Spare Parts F 6 ...
Страница 304: ...Index 12 ...
Страница 305: ......