I/O Wiring - Emerson ControlWave EFM 3808 Instruction Manual

ControlWave Express Instruction Manual (CI-ControlWave Express)
Caution

3.3 I/O Wiring

Shielding and
Grounding
3-4
Power down the ControlWave Express before you perform I/O wiring.
Shut down any processes the ControlWave Express may be managing
(or switch them over manually or handle with another controller).
Perform any hardware configuration (wiring, jumper configuration, and
installation) only when the ControlWave Express is powered down.
Before any I/O connections can become operational, you must use
ControlWave Designer to configure and then download the application
(project).
To ensure safe use of this product, please review and follow the
instructions in the following supplemental documentation:

Supplement Guide - ControlWave Site Considerations for
Equipment Installation, Grounding, and Wiring (S1400CW)

ESDS Manual – Care and Handling of PC Boards and ESD
Sensitive Components (S14006)
The ControlWave Express uses card edge terminal blocks to
accommodate field wiring. You route the wires into the
enclosure/chassis through a slot in the removable card edge cover.
ControlWave Express I/O uses compression-type terminals that
accommodate up to #16 AWG wire. Insert the wire's bared end (approx.
¼" max) into the clamp beneath the screw and secure the wire. To
prevent shorts, ensure that no bare wire is exposed. If using standard
wire, tin the bare end with solder to prevent flattening and improve
conductivity. Allow some slack in the wires when making terminal
connections. Slack makes the wires more manageable and helps
minimize mechanical strain on the terminal blocks.
Use twisted-pair, shielded and insulated cable for I/O signal wiring to
minimize signal errors caused by electromagnetic interference (EMI),
radio frequency interference (RFI), and transients. When using
shielded cable, ground all shields at only one point in the appropriate
system. This prevents circulating ground current loops that can cause
signal errors.
I/O Configuration and Wiring Revised Mar-2011