Wavetronix Click 500 (programmable controller) (CLK-500) - User Guide - Manual (Page 49)

48 CHAPTER 6 • CLICK 500
I1+ I1- I2+ I2-
Digital Input
Connector
Figure 6.9 – Digital Inputs
Digital Input 1 SW1:1 SW1:2 SW1:3 SW1:4 SW1:5 SW1:6
Low-level AC Input On Off Off Off Off –
Contact Closure Input Off On Off Off Off –
DC Input 9 VDC Threshold Off Off On Off Off –
DC Input 11.9 VDC Threshold Off Off Off On Off –
DC Input 23.8 VDC Threshold Off Off Off Off On –
Table 6.2 – Digital Input 1
Digital Input 2 SW2:1 SW2:2 SW2:3 SW2:4 SW2:5 SW1:6
Low-level AC Input On Off Off Off Off –
Contact Closure Input Off On Off Off Off –
DC Input 9 VDC Threshold Off Off On Off Off –
DC Input 11.9 VDC Threshold Off Off Off On Off –
DC Input 23.8 VDC Threshold Off Off Off Off On –
Table 6.3 – Digital Input 2
It is possible to have digital input 1 configured as one type of input and digital input 2 con-
figured as another. For example, digital input 1 could monitor low-level AC, while digital
input 2 could monitor DC voltage.
Low-level Digital AC Input
The low-level AC input is designed to work with a CR Magnetics 3110 Split-Core Current
Transformer or equivalent (two are included in the development kit). These clamp-on style