
Rockwell Automation Publication D2-3518-4 - January 2020
167
Parameter Descriptions
Chapter 9
Frame 4 drives (firmware version 2.x) only:
Figure 71 - Rectifier Status (101) Frame 4
Selects whether DC bus voltage (Vdc) optimization is enabled or disabled.
At low speeds the inverter requires a lower DC bus voltage, so the voltage
supplied by the rectifier can be lowered to reduce switching losses. The DC bus
voltage must be greater than the peak of the AC line, so this feature is more useful
with 400V AC input.
If Vdc Optimize (102) is set to
Disabled
, the DC bus voltage
generated by the
rectifier
while the rectifier or the entire drive is running is calculated based on a
combination of the value of Vdc Reference (103) and measured line-to-line
voltage of the AC line. In this case, Vdc Reference (103) defines the minimum
DC bus voltage that the rectifier commands while it is running.
If Vdc Optimize (102) is set to
Enabled
, the DC bus voltage
generated by the
rectifier
while the rectifier or the entire drive is running is calculated based on a
combination of the DC bus level necessary to provide the motor voltage required
by the inverter and the measured line-to-line voltage of the AC line. Vdc
Reference (103) is not used in this case.
If Vdc Optimize (102) is set to
Enabled
, the DC bus voltage
required by the
inverter
is calculated from the output frequency of the inverter and the value of
the Max Motor Volts (107), Max Motor Freq (108), and Base Motor Freq (109)
rectifier parameters.
102
Vdc Optimize
Range:
0 = Disabled
1 = Enabled
Default:
0 = Disabled
Access:
0
Dynamic Control > Bus Voltage
See also:
103, 104, 107, 108, 109
x
0
0
1
1
2
3
4
5
6
7
8
9
11
12
13
14
15
x =Reserved
Bit #
OK to Run Inverter
Rectifier Running
Rectifier F
aulted
Rectifier in Limit
Rectifier Synchroniz
ed
Rectifier Phased ACB
Rectifier at
Voltage
Rectifier Regener
ating
Fault Reset Echo
Nibble 1
Nibble 2
Nibble 3
Nibble 4
Rectifier Carrier Sync
Loop Control Enable
Appl. Digital Out 3
Bit 0 indicates OK to run
Appl. Digital Out 4
Standb
y
Содержание Allen-Bradley LiquiFlo 2.0
Страница 1: ...LiquiFlo 2 0 AC Drive User Manual OriginalInstructions ...
Страница 6: ...6 Rockwell Automation Publication D2 3518 4 January 2020 Table of Contents Notes ...
Страница 8: ...8 Rockwell Automation Publication D2 3518 4 January 2020 Preface Notes ...
Страница 12: ...12 Rockwell Automation Publication D2 3518 4 January 2020 Chapter 1 Introduction Notes ...
Страница 34: ...34 Rockwell Automation Publication D2 3518 4 January 2020 Chapter 2 About the Drive Notes ...
Страница 44: ...44 Rockwell Automation Publication D2 3518 4 January 2020 Chapter 3 Planning the Installation Notes ...
Страница 68: ...68 Rockwell Automation Publication D2 3518 4 January 2020 Chapter 8 Programming Basics Notes ...
Страница 190: ...190 Rockwell Automation Publication D2 3518 4 January 2020 Chapter 9 Parameter Descriptions Notes ...
Страница 228: ...228 Rockwell Automation Publication D2 3518 4 January 2020 Chapter 10 Troubleshooting the Drive Notes ...
Страница 250: ...250 Rockwell Automation Publication D2 3518 4 January 2020 Appendix A LiquiFlo 2 0 Drive Frame 3Wiring Diagrams Notes ...
Страница 258: ...258 Rockwell Automation Publication D2 3518 4 January 2020 Appendix B LiquiFlo 2 0 Drive Frame 4Wiring Diagrams Notes ...
Страница 267: ......