Rockwell Automation 57C421B Pulsetach Input Module/DCS 5000/AutoMax - Manual (Page 12)

2Ć4
+12V INPUT A
+5V INPUT A
CHANNEL A
COMMON OR A
681W
221W
+5V
DIGITAL
FILTER
CHANNEL A
14
12
2
TO PULSETACH
TERMINAL
+12V INPUT B
+5V INPUT B
+5V
DIGITAL
FILTER
CHANNEL B
17
15
3
TO PULSETACH
TERMINAL
+12V INPUT Z
+5V INPUT Z
+5V
DIGITAL
FILTER
Z PULSE
20
18
4
TO PULSETACH
TERMINAL
681W
221W
681W
221W
Note that all channels are individually isolated.
CHANNEL B
COMMON OR B
CHANNEL Z
COMMON OR Z
Figure 2.3 Ć Module Pulsetach Input Circuitry