Main Pcb; Main Board Wiring Connections - Mettler Toledo IND780 Guide D'installation

5. Move the cable through the grommet to adjust its length within the enclosure. When making
6. Finally, tighten the nut onto the body of the cable grip. Figure 2-26 shows the assembled cable
7. After making the wiring connections as described in the next section, check that the nut on the
2.6.

Main PCB

2.6.1.

Main Board Wiring Connections

The following connections are made to the IND780 main board:
The harsh enclosure must be opened to make the connections, as shown in Figure 2-27. The rear
cover of the panel mount enclosure (Figure 2-28) needs to be removed in order to make these
connections. Note that the option board sockets shown at the top of these figures represent the
locations where option cards (Discrete I/O, Serial Communications, IDNet, Analog Load Cell,
POWERCELL MTX and PDX Interfaces) would be installed. These may not be present in your unit.
2-16
METTLER TOLEDO IND780 Installation Guide
cable terminations inside the harsh enclosure, ensure that the cable length from the terminal
strip/connector to the terminal housing is sufficient so that no strain is placed on the connector
assembly when the housing is in the fully open position.
grip.
cable gland is tightened properly to seal around the cable. Ensure that this seal is watertight.
• Ethernet •
• USB •
• COM1 •
• COM2 •
Figure 2-26: Cable Grip Assembled
Optional scale interface boards
Optional serial communications boards
Optional discrete Input / Output boards
Optional PLC interface boards
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