Rockwell Automation 61C345 4 Input 4-20mA Analog Rail Module - Manual (Page 15)

3Ć1
3.0 INSTALLATION
This section describes how to install and replace the Analog Rail
module. Note that analog signals are sensitive to variations in
temperature. The Analog Rail module is designed to perform
optimally at room temperature, approximately 25 o C. Inall cases, the
ambient temperature of the installation must be maintained in the
range specified in Appendix A to ensure the highest possible
accuracy.
DANGER
THE USER IS RESPONSIBLE FOR CONFORMING WITH THE NATIONAL
ELECTRICAL CODE AND ALL OTHER APPLICABLE LOCAL CODES. WIRING
PRACTICES, GROUNDING, DISCONNECTS, AND OVERĆCURRENT
PROTECTION ARE OF PARTICULAR IMPORTANCE. FAILURE TO OBSERVE THIS
PRECAUTION COULD RESULT IN SEVERE BODILY INJURY OR LOSS OF LIFE.
DANGER
DO NOT TOUCH THE CONNECTORS ON THE FACEPLATE IF THERE IS POWER
ON THE WIRES ATTACHED TO THE PLUG CONNECTOR SCREW TERMINALS.
ALWAYS TURN OFF POWER BEFORE HANDLING A CONNECTOR THAT IS
WIRED. FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT IN SEVERE
BODILY INJURY OR LOSS OF LIFE.
CAUTION
THE ANALOG RAIL MODULE IS DESIGNED TO BE POWERED BY EITHER 24 VDC
OR 120 VAC. CONNECT THE PROPER POWER SOURCE TO THE MODULE.
FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT IN DAMAGE TO OR
DESTRUCTION OF THE EQUIPMENT.
3.1 Wiring
To reduce the possibility of electrical noise interfering with the
proper operation of the control system, exercise care when installing
the wiring between the module and the external hardware.
Use shielded twisted pair for all wiring between the Analog Rail
module and the external hardware. Beldent 8761 or anequivalent
cable type is recommended. For detailed recommendations refer to
IEEE 518.