Discrete I/O Mode Selector Switch; Pcb Jumper Positions; Analog Load Cell Board Jumper - Mettler Toledo IND780 Manual De Instalación

Discrete I/O Mode Selector Switch

A switch on the Discrete I/O board selects whether the inputs will be active or
passive. An explanation of these two modes and sample wiring diagrams were
provided earlier in this chapter. Ensure that the switch is set properly before wiring
to the inputs. The location of the switch (S1) is shown in the drawing and
photograph in Figure 2-79. In both cases, the switch in the illustration is set to
active.

PCB Jumper Positions

Analog Load Cell Board Jumper

One jumper (W1) on the IND780 analog scale option board permits the gain of
the analog section to be set to either 2 mV/V or 3 mV/V. The factory default is 3
mV/V, which normally will work well for both 2 mV/V and 3 mV/V load cells. If 2
mV/V load cells are used, the jumper can be changed to the 2 mV/V position.
Figure 2-80 shows the jumper's location and settings on the board.
S2
Figure 2-78: Main PCB Master Reset Button Location
Figure 2-79: Discrete I/O Board Mode Selector Switch Location
IND780 Installation Manual
Master
reset
button
2-45