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3-40 Programming and Parameters
PowerFlex 40 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22B-UM001I-EN-E
Advanced Program Group
(continued)
A140 [Stp Logic 0]
A141 [Stp Logic 1]
A142 [Stp Logic 2]
A143 [Stp Logic 3]
A144 [Stp Logic 4]
A145 [Stp Logic 5]
A146 [Stp Logic 6]
A147 [Stp Logic 7] Related Parameter(s): P038 , P039 , P040 , A051 - A054 ,
A055 , A058 , A061 , A067 , A068 , A070 - A077 , A150 - A157
Values Default: 00F1
Min/Max: 0001/bAFF
Display: 4 Digits
Parameters A140-A147 are only active if P038 [Speed Reference] is set to 6 “Stp Logic”.
These parameters can be used to create a custom profile of frequency commands. Each “step” can
be based on time, status of a Logic input or a combination of time and the status of a Logic input.
Digits 0-3 for each [Stp Logic x] parameter must be programmed according to the desired profile.
A Logic input is established by setting a digital input, parameters
A051 - A054 [Digital Inx Sel], to 23
“Logic In1” and/or 24 “Logic In2”.
A time interval between steps can be programmed using parameters
A150 - A157 [Stp Logic Time x].
See the table below for related parameters.
The speed for any step is programmed using parameters
A070 - A077 [Preset Freq x].
How StepLogic Works
The StepLogic sequence begins with a valid start command. A normal sequence always begins with
A140 [Stp Logic 0].
Digit 0: Logic For Next Step
This digit defines the logic for the next step. When the condition is met the program advances to the
next step. Step 0 follows Step 7. Example: Digit 0 is set 3. When “Logic In2” becomes active, the
program advances to the next step.
Digit 1: Logic to Jump to a Different Step
For all settings other than F, when the condition is met, the program overrides Digit 0 and jumps to the
step defined by Digit 2.
Digit 2: Different Step to Jump
When the condition for Digit 1 is met, the Digit 2 setting determines the next step or to end the program.
Stop drive before changing this parameter.
StepLogic Parameter
(Active when P038 = 6 “Stp Logic”)
Related Preset Frequency Parameter
(Can be activated independent of
StepLogic Parameters)
Related StepLogic Time Parameter
(Active when A140-A147 Digit 0 or 1
are set to 1, b, C, d or E)
A140 [Stp Logic 0] A070 [Preset Freq 0] A150 [Stp Logic Time 0]
A141 [Stp Logic 1] A071 [Preset Freq 1] A151 [Stp Logic Time 1]
A142 [Stp Logic 2] A072 [Preset Freq 2] A152 [Stp Logic Time 2]
A143 [Stp Logic 3] A073 [Preset Freq 3] A153 [Stp Logic Time 3]
A144 [Stp Logic 4] A074 [Preset Freq 4] A154 [Stp Logic Time 4]
A145 [Stp Logic 5] A075 [Preset Freq 5] A155 [Stp Logic Time 5]
A146 [Stp Logic 6] A076 [Preset Freq 6] A156 [Stp Logic Time 6]
A147 [Stp Logic 7] A077 [Preset Freq 7] A157 [Stp Logic Time 7]
22B-UM001.book Page 40 Tuesday, May 30, 2017 5:22 PM