Rockwell Automation 57C421B Pulsetach Input Module/DCS 5000/AutoMax - Manual (Page 20)

3Ć6
12 14 2 15 17 3 18 20 4
PULSE
ENCODER
GND
A B Z
SIGNAL
A
SIGNAL
B
SIGNAL
Z
1K
+12
V
+12
V
or
+5
V
464
+
5
V
+12
V
or
+5
V
+12
V
or
+5
V
1K
+12
V
464
+
5
V
1K
+12
V
464
+
5
V
+12
V
INPUT
+5
V
INPUT
+12
V
INPUT
+5
V
INPUT
+12
V
INPUT
+5
V
INPUT
681 681 681
221 221 221
681 681 681
PULSET
ACH
INPUT
MODULE
Figure 3.3 ĆTypical Pulsetach Connections for a SingleĆEnded Input with
External PullĆUp Resistor