Mettler Toledo IND560 Guia De Instalacion página 51

Passive Input
Selecting the inputs as passive (Figure 2-50) enables other devices such as PLCs
to provide the trigger voltage (typically 12 VDC or 24 VDC, maximum 30 VDC) to
turn the IND560 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 2-34.
Figure 2-34: Passive Input Connections
IND560 Installation Manual
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.
2
3. WIRE SIZE: 14 AWG (2.088 mm ) MAXIMUM
2
22 AWG (0.322 mm ) MINIMUM
2-23