Rockwell Automation Reliance Electric MD65, User Manual

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StepLogicTM, Basic Logic and Timer/Counter Functions
H-3
StepLogic
TM
Using Basic Logic Functions
Digital input and digital output parameters can be configured to use
logic to transition to the next step. Logic In1 and Logic In2 are
defined by programming Digital Inx Sel parameters (A051-A054) to
option 23 “Logic In1” or option 24 “Logic In2”.
Example
• Run at Step 0.
• Transition to Step 1 when Logic In1 is true.
Logic senses the edge of Logic In1 when it transitions from off
to on. Logic In1 is not required to remain “on”.
• Transition to Step 2 when both Logic In1 and Logic In2 are true.
The drive senses the level of both Logic In1 and Logic In2 and
transitions to Step 2 when both are on.
• Transition to Step 3 when Logic In2 returns to a false or off
state. Inputs are not required to remain in the “on” condition
except under the logic conditions used for the transition from
Step 2 to Step 3.
Time
Logic In1
Logic In2
Frequency
Start Step 0 Step 1 Step 2 Step 3