Reference Control; Auto" Speed Sources; Manual" Speed Sources; Changing Speed Sources - Rockwell Automation PowerFlex series User Manual

Reference Control

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 digital inputs configured as speed selects, a digital input configured
for "Auto/Manual" or Reference Select bits of a command word (see
Communication Configurations on page A-5

"Auto" Speed Sources

The default auto source for a command reference (all speed select digital
inputs open or not programmed) is analog input 1 configured for "Speed
Ref A" (parameter 44 [Speed Ref A]). If any of the speed select digital
inputs are closed, the drive will use other parameters as the auto speed
command source.

"Manual" Speed Sources

The manual source for speed command to the drive is either the HIM
requesting manual control (see
terminal block (analog input or MOP) if a digital input is programmed to
"Auto/Manual".

Changing Speed Sources

The selection of the active speed reference can be made through the digital
inputs, DPI command, Jog button or Auto/Manual HIM operation.
Figure C.1 Speed Reference Selection Chart
Auto Reference Options
Anlg In 1-3 Sel
P44 [Speed Ref A]
DPI P1-5 Select
MOP Select
Encoder Out Sel
Anlg In 1-3 Sel
P48 [Speed Ref B]
DPI P1-5 Select
MOP Select
Encoder Out Sel
P155 [Preset Speed 2]
P155 [Preset Speed 3]
P155 [Preset Speed 4]
P155 [Preset Speed 5]
P155 [Preset Speed 6]
P155 [Preset Speed 7]
Manual Reference Options
HIM Requesting Manual
P267 [TB Manual Ref]
Anlg In 1-3 Sel
MOP Select
P266 [Jog Speed]
for more information).
ALT Functions on page
[Digital Inx Sel]
Speed Sel:
3 2 1
0 0 0
P385
[Speed Ref Out]
0 0 1
Auto
0 1 0
0 1 1
1 0 0
Min
Ref
1 0 1
Speed
Cmd
1 1 0
Limit
1 1 1
Man
Digital Input
PowerFlex Digital DC Drive User Manual -
Application Notes C-13
B-2) or the control
Trim
Ramp
Ramp/
Speed
Draw
Trim
Speed /
Droop
Max
Off
Speed
Limit
Speed
Command
Jog
Cmd
Speed
Regulator
On
Speed
Feedback
Motor
Publication 20P-UM001C-EN-P - July 2008