Installing Cables And Glands - Mettler Toledo ACM500 Guide D'installation

3.4.

Installing Cables and Glands

This section provides information for installing cables and connections to the ACM500
communication module, including:
3.4.1. Ferrites
In order to meet certain electrical noise emission limits and to protect the ACM500 from external
influences, it is necessary to install a ferrite core on the connection cable between the interface
board and the main board of the ACM500.
Ferrites are not required on the incoming intrinsically safe current loop or fiber optic interfaces.
To install ferrites, simply pass the cable through the center of the core and then take one wrap
around the outside of the core and pass it through again. Either the complete cable or the individual
wires can be wrapped through the ferrite. This should be done on the inside of the enclosure as
close to the outside wall as possible. Refer to Figure 3-4 for examples of acceptable methods of
installation.
3-4
METTLER TOLEDO ACM500 Installation Manual
• Ferrites
• Cable Glands
• Interface Board Wiring Connections
• Cable Preparation for Intrinsically Safe Current Loop Interface
• Wiring Connections for Options
ONLY THE COMPONENTS SPECIFIED IN THIS MANUAL CAN BE USED IN THIS DEVICE. ALL
EQUIPMENT MUST BE INSTALLED IN ACCORDANCE WITH THE INSTALLATION INSTRUCTIONS
DETAILED IN THIS MANUAL. INCORRECT OR SUBSTITUTE COMPONENTS AND/OR DEVIATION
FROM THESE INSTRUCTIONS CAN IMPAIR THE INSTRINSIC SAFETY OF THE TERMINAL AND
COULD RESULT IN BODILY INJURY AND/OR PROPERTY DAMAGE.
Do not attempt to use ferrites on the fiber optic cable for the interface board. Attempting to
do so will damage the fiber optic cable
Additional ferrites are not required for the Ethernet TCP/IP, COM2/COM3 and PLC
connections running from the ACM500.
WARNING
Figure 3-4: Installing the Ferrite Cores
64061976 | 08 | 11/2019