Mettler Toledo IND560 Guia De Instalacion página 50

IND560 Installation Manual
Active Input
Selecting the inputs as active (Figure 2-50) enables connection of switches or
other simple devices to trigger an input. No voltage is supplied by the external
simple device.
An example of how to wire to the active inputs is shown in Figure 2-33.
2-22
NOTES:
1. VOLTAGE IS LOGIC LEVEL 5 VDC. LOW RESISTANCE
CONTACTS RECOMMENDED. MAXIMUM CABLE LENGTH:
20 FEET 96 METERS.
2.
DO NOT BUNDLE INPUT WIRING WITH POWER WIRING OR
ANY OTHER HIGH ENERGY CABLES.
3.
SWITCHES MAY BE REPLACED WITH RELAY DRY
CONTACTS.
4.
WIRE SIZE: 14 AWG (2.088 mm
Figure 2-33: Active Input Connections
2
) MAXIMUM
2
22 AWG (0.322 mm ) MINIMUM