Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Communication Modu Manual de usuario descargar pdf (Pagina 34)

2-12 Installing the Module

The 1769-SM2 module is intended to be mounted to a well-grounded

mounting surface such as a metal panel. Additional grounding

connections from the module’s mounting tabs or DIN rail (if used) are

not required unless the mounting surface cannot be grounded. Refer to

Industrial Automation Wiring and Grounding Guidelines, publication

1770-4.1, for additional information.

Shielded Connector Grounding Requirements

When using the 22-RJ45CBL-20 cable, which has shielded connectors,

the shields are all grounded to the chassis terminal block on the

1769-SM2 module (item 11 in Figure 1.1

). However, the user must:

• Install a wire from the chassis terminal block on the 1769-SM2

module to a grounded, conductive surface (i.e. metal panel). See

Figure 2.6

• Remove the shield connection to chassis ground at the drive I/O

block shield terminal.

Figure 2.6 Shielded Connector Grounding Details

Grounding the Module

Drive Drive I/O Block

PowerFlex 4 Terminal 16

PowerFlex 4M Terminal 16

PowerFlex 40 Terminal 19

PowerFlex 40P Terminal 19

PowerFlex 400 Terminal 20

DSI / Modbus RTU

MODULE

CH1

CH2 CH3

To Drive 1

To Drive 2

To Drive 3

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 203 204

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Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Communication Modu Manual de usuario Pagina 34