Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 65)

Publication 900-UM007D-EN-E - January 2011
Preparations 2-27
Wiring the Event Input
When the appropriate option event input unit is mounted in the Bulletin
900-TC8 or 900-TC16 controller, an event input function is available by wiring
to the controllers terminals as shown in the following diagrams.
Figure 2.25
Use event inputs under the following conditions:
• The output current from the controller is approximately 7 mA @ 5V.
• Contact input ON: 1 K
Ω max., OFF: 100 KΩ min.
• Non-contact input ON: residual voltage 1.5V max., OFF: leakage
current 0.1 mA max.
Polarities using non-contact input are as follows:
Figure 2.26
900-TC16
Contact Event
Input
EV1
EV2
12
11
13
900-TC8
Contact Event
Input
EV1
EV2
A A
A Do NOT apply an external voltage source to the Event Input Terminals
EV1
EV2
+
−
+
EV1
EV2
900-TC16 900-TC8
+
−
+
A A
A Do NOT apply an external voltage source to the Event Input Terminals