Allen-Bradley PowerFlex 70 Reference Manual page 169

Using the above formula, calculate the Speed Reference sent from a network
using a DPI adapter.
For example, to send out a command frequency of 60 Hz with [Maximum Freq]
= 70 Hz, we would calculate the following:
60 Hz
SpeedRef =
70 Hz
Jog
When the drive is not running, pressing the HIM Jog button or a programmed
Jog digital input will cause the drive to jog at a separately programmed jog
reference. This speed reference value is entered in [ Jog Speed], parameter 100.
Figure 35 Speed Reference Selection
[Digital Inx Select]:
= Default
Speed Sel 3 2 1
Trim
Auto Speed Ref Options
Speed Ref A Sel, Parameter 090
Speed Ref B Sel, Parameter 093
Preset Speed 2, Parameter 102
Preset Speed 3, Parameter 103
Preset Speed 4, Parameter 104
Preset Speed 5, Parameter 105
Preset Speed 6, Parameter 106
Preset Speed 7, Parameter 107
DPI Port Ref 1-6, See Parameter 209
Manual Speed Ref Options
HIM Requesting Auto/Manual
Digital Input
TB Man Ref Sel, Parameter 096
Jog Command
Jog Speed, Parameter 100
Speed Adders
[Speed Mode]:
PI Output 2 "Process Pi"
Slip Compensation 1 "Slip Comp"
0 "Open Loop"
None
Scaling
Scaling applies only to references from analog inputs and reference sources
selected in [Speed Ref x Sel], parameters 90/93.
Each analog input has its own set of scale parameters:
• [Analog In x Hi] sets the maximum level on input to be seen (i.e. 10 Volts).
• [Analog In x Lo] sets the minimum level on input to be seen (i.e. 0 Volts).
Each [Speed Ref x Sel] parameter has an additional set of scale parameters:
• [Speed Ref x Hi] selects the reference value for the maximum input specified
in [Analog In x Hi].
• [Speed Ref x Lo] selects the reference value for the minimum input specified
in [Analog In x Lo].
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
x 32767 = 28086
PI Exclusive Mode
[PI Configuration]:
Drive Ref Rslt
Bit 0, Excl Mode = 0
0 0 0
0 0 1
Mod Functions
0 1 0
Auto
0 1 1
Direction, etc.)
1 0 0
1 0 1
Min/Max Speed
1 1 0
1 1 1
DPI Command
Acc/Dec Ramp
Man
Output Frequency
Speed Reference
Pure Reference
to follower drive for
Frequency Reference
(Skip, Clamp,
Commanded
Frequency
and
S Curve
Post Ramp
to follower drive for
Frequency Reference
169