E-2 Velocity StepLogic™, Basic Logic and Timer/Counter Functions
Velocity StepLogic Using Timed Steps
To activate this function, set parameter P038 [Speed Reference] to 6 “Stp
Logic”. Three parameters are used to configure the logic, speed
reference and time for each step.
• Logic is defined using parameters A140
-A147 [Stp Logic x].
• Preset Speeds are set with parameters A070
-A077 [Preset Freq x].
• Time of operation for each step is set with parameters A150
-A157
[Stp Logic Time x].
The direction of motor rotation can be forward or reverse.
Figure E.1 Using Timed Steps
Velocity StepLogic Sequence
• Sequence begins with a valid start command.
• A normal sequence begins with Step 0 and transition to the next step
when the corresponding StepLogic time has expired.
• Step 7 is followed by Step 0
• Sequence repeats until a stop is issued or a fault condition occurs.
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