Rockwell Automation Liqui-Flo DBT Reach Drive User Manual
Page 228
Appendix D-14
DBT Reach Drive User Manual
Sleep Wake Mode
This function stops (sleep) and starts (wake) the drive based on separately
configurable analog input levels rather than discrete start and stop signals. When
enabled in “Direct” mode, the drive will start (wake) when an analog signal is greater
than or equal to the user specified Wake Level (180), and stop the drive when an
analog signal is less than or equal to the user specified Sleep Level (182). When
Sleep Wake is enabled for “Invert” mode
1
, the drive will start (wake) when an analog
signal is less than or equal to the user specified Wake Level (180), and stop the drive
when an analog signal is greater than or equal to the user specified Sleep Level (182)
Definitions
•
Wake - A start command generated when the analog input value remains above
Wake Level (180) (or below when Invert mode is active) for a time greater than
Wake Time (180).
•
Sleep - A Stop command generated when the analog input value remains below
Sleep Level (182) (or above when Invert mode is active) for a time greater than
Sleep Time (182).
•
Speed Reference – The active speed command to the drive as selected by drive
logic and Speed Ref x Sel.
•
Start Command - A command generated by pressing the Start button on the HIM,
closing a digital input programmed for Start, Run, Run Forward or Run Reverse.
Refer to D.16.
If the band is outside the
limits, the skip band is
inactive.
!
ATTENTION: Enabling the Sleep-Wake function can cause unexpected
machine operation during the Wake mode. Failure to observe these
precautions can result in damage to the equipment and/or personal injury.
1
Invert mode is only available with Vector firmware 3.xxx and later.
Table D.2 – Skip Frequency Examples
0 Hz
60 Hz. Max.
Frequency
kip Frequency 1
400 Hz.
Inactive
Skip Ban
Skip
Skip Band