Passive Input - Mettler Toledo IND560 PDX Guia De Instalacion

IND560 PDX Installation Manual

Passive Input

Selecting the inputs as passive (Figure 2-60) enables other devices such as PLCs
to provide the trigger voltage (typically 12 VDC or 24 VDC, maximum 30 VDC) to
turn the IND560 PDX inputs "on".
Passive inputs will work with either polarity (ground on common or +V on
common). An example of wiring to the passive inputs with the +V to the common
is shown in Figure 2-44.
2-28
NOTES:
1. VOLTAGE: 5-30 VDC, 10mA MAXIMUM CURRENT.
VOLTAGE POLARITY MAY BE REVERSED.
2. DO NOT BUNDLE INPUT WIRING WITH POWER WIRING OR
ANY OTHER HIGH ENERGY CABLES.
3. WIRE SIZE: 14 AWG (2.088 mm
22 AWG (0.322 mm
Figure 2-44: Passive Input Connections
2
) MAXIMUM
2
) MINIMUM