Rockwell Automation MD65 User Manual Version 2.0 - Manual (Page 161)

StepLogicTM, Basic Logic and Timer/Counter Functions H-1
A
PPENDIX
H
StepLogic
TM
, Basic Logic
and Timer/Counter
Functions
Four MD65 drive logic functions provide the capability to program
simple logic functions without a separate controller.
• StepLogic TM 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 TM .
• 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