Rockwell Automation 23P PowerFlex Digital DC Drive - Manual (Page 307)

Rockwell Automation Publication 20P-UM001K-EN-P - July 2014 307
Application Notes Appendix C
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
234 for more information). The actual source parameter
number is displayed in parameter 1329 [Speed Ref Source] with any
modifications indicated in parameter 1330 [Spd Ref Sel Sts].
“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
266 ) 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 87 - Speed Reference Selection Chart
Torque Reference Source
The torque reference can only be supplied by an analog input, the HIM, or a
network reference. Switching between available sources while the drive is running
is not available. Digital inputs programmed as “Speed Sel 1, 2, 3” and the HIM
Auto/Manual function (see above) do not affect the active torque reference. The
HIM, however, cannot acquire Manual Reference control while it is configured
to supply the torque reference.
Anlg In1-3 Sel
DPI P1-5 Select
MOP Select
Encoder Out Sel
Resolver Spd Sel
P44 [Speed Ref A]
P48 [Speed Ref B]
P155 [Preset Speed 2]
P156 [Preset Speed 3]
P157 [Preset Speed 4]
P158 [Preset Speed 5]
P159 [Preset Speed 6]
P160 [Preset Speed 7]
[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 (P1-P5) Requesting Manual
Anlg In1-3 Sel
MOP Select
P267 [TB Manual Ref]
Digital Input
Manual Sel
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
Anlg In1-3 Sel
DPI P1-5 Select
MOP Select
Encoder Out Sel
Resolver Spd Sel
Anlg In1-3 Sel