3-38
Programming and Parameters
Advanced Program Group
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]
Values
Default
Min/Max:
Display:
Parameters A140-A147 are only active if
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
"Logic In1" and/or 24 "Logic In2".
A time interval between steps can be programmed using parameters
See the table below for related parameters.
The speed for any step is programmed using parameters
Step Logic Parameter
(Active when P038 = 6 "Stp Logic")
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]
How Step Logic Works
The step logic 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.
Digit 3: Step Settings
This digit defines what accel/decel profile the speed command will follow and the direction of the
command for the current step. In addition, if a relay or opto output (parameters A055, A058 and A061)
is set to 15 "StpLogic Out", this parameter can control the status of that output.
Any Step Logic parameter can be programmed to control a relay or opto output, but you can not
control different outputs based on the condition of different Step Logic commands.
(continued)
Related Parameter(s): P038, P039, P040, A051-A054,
A055, A058, A061, A067, A068, A070-A077,
Stop drive before changing this parameter.
00F1
0001/bAFF
4 Digits
P038
[Speed Reference] is set to 6 "Stp Logic".
Related Preset Frequency Parameter
(Can be activated independent of
Step Logic Parameters)
A070 [Preset Freq 0]
A071 [Preset Freq 1]
A072 [Preset Freq 2]
A073 [Preset Freq 3]
A074 [Preset Freq 4]
A075 [Preset Freq 5]
A076 [Preset Freq 6]
A077 [Preset Freq 7]
A051
-
A054
[Digital Inx Sel], to 23
A150
-
A157
A070
-
A077
[Preset Freq x].
Related Step Logic Time Parameter
(Active when A140-A147 Digit 0 or 1
are set to 1, b, C, d or E)
A150 [Stp Logic Time 0]
A151 [Stp Logic Time 1]
A152 [Stp Logic Time 2]
A153 [Stp Logic Time 3]
A154 [Stp Logic Time 4]
A155 [Stp Logic Time 5]
A156 [Stp Logic Time 6]
A157 [Stp Logic Time 7]
A150-A157
[Stp Logic Time x].