Idnet; Connections - Mettler Toledo IND780 Guide D'installation

2.7.7.2.3. Relay Outputs
The relay and solid state relay outputs can switch up to 30 VAC or 30 VDC voltages at 1A
maximum. The relay outputs are not polarity-sensitive since they are dry contact outputs. An
example of wiring to the outputs is given in Figure 2-81.
2.7.8.

IDNet

2.7.8.1.

Connections

TO AVOID DAMAGE TO THE PCB OR LOAD CELL, REMOVE POWER FROM THE IND780 TERMINAL AND WAIT AT
LEAST 30 SECONDS BEFORE CONNECTING OR DISCONNECTING ANY HARNESS.
For IDNet base load cells, the IND780 terminal supplies 12 VDC for the new T-Brick type, and 30
VDC for the legacy PIK-Brick type. When using an IDNet card in the IND780 terminal, the cable
connection from the base is made to a connector on the rear of the housing. IDNet cards are
supplied with a length of cable and a connector that mates to the connector on the IND780
terminal. The board is shown in Figure 2-82.
64057253 | 14 | 08/2014
Note – The voltage
source must be a
Class 2 marked or a
Limited Power Source
(LPS)-compliant
power supply
Figure 2-81: Relay Outputs
NOTICE
METTLER TOLEDO IND780 Installation Guide
2-53