Rockwell Automation 22F PowerFlex 4M User Manual FRN 1.xx - 2.xx - Manual (Page 101)

PowerFlex 4M Adjustable Frequency Drive FRN 1.xx - 2.xx User Manual
Publication 22F-UM001D-EN-E
Appendix
C
RS485 (DSI) Protocol
PowerFlex 4M drives support the RS485 (DSI) protocol to allow
efficient operation with Rockwell Automation peripherals. In addition,
some Modbus functions are supported to allow simple networking.
PowerFlex 4M drives can be multi-dropped on an RS485 network using
Modbus protocol in RTU mode.
For information regarding DeviceNet or other communication protocols,
refer to the appropriate user manual.
Network Wiring
Network wiring consists of a shielded 2-conductor cable that is
daisy-chained from node to node.
Figure C.1 Network Wiring Diagram
Controller
01 02 03 04 05
11 12 13 14 15
06
16
*
W/T3 V/T2 U/T1 DC+ DC-
Master
PowerFlex 4M
Node 1
4
5
PowerFlex 4M
Node 2
4
5
PowerFlex 4M
Node "n"
4
5
TxRxD+
TxRxD-
TxRxD+
TxRxD-
TxRxD+
TxRxD- 120 ohm resistor
120 ohm resistor
FRONT
PIN 8
PIN 1
NOTE: The shield should be grounded at ONLY ONE location.
TxRxD+
TxRxD-
RS485
(DSI)
AK-U0-RJ45-TB2P
RS485
(DSI)
TxRxD+
TxRxD-
*Terminal block for Frame A and B drives
is shown here.
01 02 03 04 05
11 12 13 14 15
06
16
Shield Shield Shield
*
W/T3 V/T2 U/T1 DC+ DC-