Rockwell Automation PowerFlex series, Руководство пользователя

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