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140
Rockwell Automation Publication D2-3518-4 - January 2020
Chapter 9
Parameter Descriptions
Sets the lowest input value to the user-configurable analog input 2 scaling block.
See
AC Line I/O Board Description (Frame 3 Only) on page 25
through
Combined I/O Board Description (Frame 4 Only) on page 29
for a description
of I/O hardware that is present on this drive and is controlled by the inverter.
Selects drive action when an analog signal loss is detected on user-configurable
analog input 2:
• 1.0V = signal loss
• 1.5V = end of signal loss
• 2.0 mA = signal loss
• 3.0 mA = end of signal loss
See
AC Line I/O Board Description (Frame 3 Only) on page 25
through
Combined I/O Board Description (Frame 4 Only) on page 29
for a description
of I/O hardware that is present on this drive and is controlled by the inverter.
One of the selections (1=Fault) stops the drive on signal loss. All other choices
make it possible for the input signal to return to a usable level while the drive is
still running.
327
Analog In 2 Loss
Range:
0 = Disabled
1 = Fault
2 = Hold Input (use last frequency command)
3 = Set Input Lo (use Minimum Speed as frequency command)
4 = Set Input Hi (use Maximum Speed as frequency command)
5 = Goto Preset1 (use Preset1 as frequency command)
6 = Hold OutFreq (maintain last output frequency)
Default:
0 = Disabled
Access:
1
Path:
Inputs & Outputs > Analog Inputs
See also:
91, 92, 320, 326, 327
ATTENTION:
Setting parameter 327 to a value greater than 1 allows the input
signal to return to a usable level while the drive is running. If a lost analog
signal is restored while the drive is running, the drive ramps to the restored
reference level at the rate specified in Accel Time 1 (140), Accel Time 2 (141),
Decel Time 1 (142), and Decel Time 2 (143). Be aware that an abrupt speed
change may occur depending upon the new reference level and the rate
specified in these parameters. Failure to observe this precaution could result in
bodily injury.
IMPORTANT
Note that there is no signal loss detection while the input is in bipolar voltage
mode.
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: ......