Rockwell Automation 22B PowerFlex 40 FRN 1.xx - 6.xx - Manual (Page 137)

PowerFlex 40 Adjustable Frequency AC Drive FRN 1.xx - 6.xx User Manual
Publication 22B-UM001H-EN-E
Appendix
E
StepLogic™, Basic Logic and
Timer/Counter Functions
Four PowerFlex 40 logic functions provide the capability to program
simple logic functions without a separate controller.
•
StepLogic Function
Steps through up to eight preset speeds based on programmed logic.
Programmed logic can include conditions that need to be met from
digital inputs programmed as “Logic In1” and “Logic In2” before
stepping from one preset speed to the next. A timer is available for
each of the eight steps and is used to program a time delay before
stepping from one preset speed to the next. The status of a digital
output can also be controlled based on the step being executed.
•
Basic Logic Function
Up to two digital inputs can be programmed as “Logic In1” and/or
“Logic In2”. A digital output can be programmed to change state
based on the condition of one or both inputs based on basic logic
functions such as AND, OR, NOR. The basic logic functions can be
used with or without StepLogic.
•
Timer Function
A digital input can be programmed for “Timer Start”. A digital
output can be programmed as a “Timer Out” with an output level
programmed to the desired time. When the timer reaches the time
programmed into the output level the output will change state. The
timer can be reset via a digital input programmed as “Reset Timer”.
•
Counter Function
A digital input can be programmed for “Counter In”. A digital output
can be programmed as “Counter Out” with an output level
programmed to the desired number of counts. When the counter
reaches the count programmed into the output level the output will
change state. The counter can be reset via a digital input
programmed as “Reset Counter”.
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