Rockwell PowerFlex 70, User Manual

Page: 31 / 170

Installation/Wiring 1-19
“Auto” Speed Sources
The drive speed command can be obtained from a number of different
sources. The source is determined by drive programming and the
condition of the Speed Select digital inputs, Auto/Manual digital inputs
or reference select bits of a command word.
The default source for a command reference (all speed select inputs open
or not programmed) is the selection programmed in [Speed Ref A Sel].
If any of the speed select inputs are closed, the drive will use other
parameters as the speed command source.
“Manual” Speed Sources
The manual source for speed command to the drive is either the HIM
requesting manual control (see
ALT Functions on page B-2 ) or the
control terminal block (analog input) if a digital input is programmed to
“Auto/Manual”.
Changing Speed Sources
The selection of the active Speed Reference can be made through digital
inputs, DPI command, jog button or Auto/Manual HIM operation.
Figure 1.13 Speed Reference Selection Chart
(1)
Speed Reference Control
(1)
To access Preset Speed 1, set [Speed Ref A Sel] or [Speed Ref B Sel] to “Preset
Speed 1”.
= Default
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
TB Man Ref Sel, Parameter 096 Digital Input
DPI Port Ref 1-6, See Parameter 209 DPI Command
Jog Speed, Parameter 100
Jog Command
HIM Requesting Auto/Manual
Trim
[Digital Inx Select]:
Speed Sel 3 2 1
0 0 1
0 1 1
0 1 0
1 0 0
1 0 1
1 1 0
1 1 1
Auto
Man
Drive Ref Rslt
Commanded
Frequency
Min/Max Speed
Acc/Dec Ramp
and
S Curve
Pure Reference
Post Ramp
to follower drive for
Frequency Reference
to follower drive for
Frequency Reference
Auto Speed Ref Options
Manual Speed Ref Options
Slip Compensation
1 "Slip Comp"
None
0 "Open Loop"
PI Output 2 "Process Pi"
Speed Adders [Speed Mode]:
PI Exclusive Mode
[PI Configuration]:
Bit 0, Excl Mode = 0
Output
Frequency
Mod Functions
(Skip, Clamp,
Direction, etc.)
Speed Ref A Sel, Parameter 090 0 0 0
Drive Ramp Rslt