Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module User Manual
Page 16
1-4
Getting Started
Multi-Drive mode enables increased connectivity, where one to five
PowerFlex 4-Class drives can be connected per channel. All of the drives
are daisy-chained to the 1769-SM2 module over RS-485 as shown in
Figure 1.3
.
Figure 1.3 Multi-Drive Mode Wiring Example
120 ohm, ¼ Watt
Terminating Resistor
AK-U0-RJ45-TB2P
Terminal Block
Connectors
AK-U0-RJ45-TB2P
Terminal Block
Connectors
AK-U0-RJ45-TB2P
Terminal Block
Connectors
MODULE
CH1
CH2
CH3
C
H
1
C
H
2
C
H
3
Up to 5 PowerFlex 4-Class drives
1769-SM2
Module
Up to 5 PowerFlex 4-Class drives
Up to 5 PowerFlex 4-Class drives
120 ohm, ¼ Watt
Terminating Resistor
120 ohm , ¼ Watt
Terminating Resistor
CH1
CH2
CH3
User-Supplied Wire (recommend
Belden No. 3105A or equivalent)
User-Supplied Wire (recommend
Belden No. 3105A or equivalent)
User-Supplied Wire (recommend
Belden No. 3105A or equivalent)
Ground Wire Connection
(for network
communication
cable shielding)
Earth Ground
Connection
Wiring Tip:
The 1769-SM2 has an
integral terminating
resistor for each channel.
Thus, it is only necessary
to connect a terminating
resistor to the RJ45
terminal block at the last
drive on each channel.
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