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Configuration and Use Manual 13
Installation
Installation Using the DisplayDigital Communications SetupBefore You Begin
2.11.2 Grounding
For all Series 3000 devices, the shields from the I/O wires should be grounded at a single point.
Ground the shields at the remote device, not at the Series 3000 device.
If you are installing a Model 3300 or Model 3500 panel-mount device with I/O cables, the terminal
block ground is available for continuation of user cable shielding to I/O cable shielding. The cable
connector does not connect the I/O cable shielding to the chassis ground. See Figure 2-4.
Figure 2-4 Shield wiring for I/O cable to field device
2.11.3 Installing relays
If you will install a relay to connect the Series 3000 device’s discrete outputs to control devices, see
Appendix D for installation instructions.
Specifications for the Model 3100 relay (supplied by Micro Motion) are provided in Appendix C.
2.12 Digital communications wiring
If you will use digital communications between your Series 3000 device and a remote device (e.g., a
ticket printer, a PLC, a temperature or pressure sensor, or a PC running ProLink II), see Chapter 3 for
wiring instructions.
Cable shields
Ter min al ma rked
Chassis
ground
Terminal block
I/O cable
Model 3300 or Model 3500
Ground shields at single
point only (at the remote
device, not at the
Series 3000 device)