Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx - Manual (Page 40)

1-28 Installation/Wiring
PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22C-UM001I-EN-P
The drive speed command can be obtained from a number of different sources. The source is
normally determined by
P038 [Speed Reference]. The drive Start command is normally
determined by P036 [Start Source]. However, the settings for these parameters can be
overridden by a variety of methods. See the chart below for the override priority.
Start and Speed Reference Control
Purge Input
Enabled and Active:
[Digital Inx Sel] = 1
Local Input
Enabled and Active
[Digital Inx Sel] = 3
No
Yes
Start, Speed and Direction commands
come from Integral Keypad.
Direction is Forward unless an input is
programmed for "Keypad/Jog Direction"
Auto Input
Enabled and Active
[Digital Inx Sel] = 2
No
Yes
Run as specified by
P038 [Speed Reference].
Start and Direction commands
come from P036 [Start Source].
Comm Select Input
Enabled and Active:
[Digital Inx Sel] = 4
No
Yes Start, Speed and Direction commands
come from RS485 (DSI) port.
Drive is in
Hand/Local Mode
selected by AUTO key
(1)
No
Yes
Start and Speed commands
come from Integral Keypad.
Direction is Forward unless an input is
programmed for "Cmd Reverse"
Analog Input 1
Override Enabled & Active:
[Digital Inx Sel] = 14
Analog Input 2
Override Enabled & Active:
[Digital Inx Sel] = 15
No
Yes
Speed commands come from
Analog Input 1 (I/O Terminal 13).
Start and Direction
follows P036 [Start Source].
Speed commands come from
Analog Input 2 (I/O Terminal 17).
Start and Direction
follows P036 [Start Source].
No
Yes
P038 [Speed Reference]
= 4 or 5
No
Yes
Run as specified by
P038 [Speed Reference].
Start and Direction commands come
from P036 [Start Source].
Run as specified by
A144-A146 [Preset Freq 1-3].
Start follows P036 [Start Source],
Direction follows
Preset Frequency settings.
Preset Inputs Active
T051/T052/T053 = 8
No
Yes
Run as specified by
A152 [PID Ref Sel].
Start and Direction commands come
from P036 [Start Source].
PID Enabled:
A152 [PID Ref Sel] ¹ 0
No
Yes
Run as specified by P038 [Speed Reference].
Start and Direction commands come
from P036 [Start Source].
No
Yes
Drive will Start and Run as
specified by A141 [Purge Frequency].
Direction is always Forward.
(1)
Refer to page 2-6 for additional information on
the operation of the Hand/Auto Mode.