Figure 11: npn open collector input, Figure 12: pnp sensor powered by internal supply, Figure 13: switch input connections – Precision Digital PD6300 User Manual
Page 23
Model PD6300 Pulse Input Rate/Totalizer
Instruction Manual
23
S-
P-
2
1
3
5
4
P+
S+
COM
INPUT SIGNAL
V
PNP NPN
mV
LEVEL
TYPE
NPN
SENSOR
4.7 k-ohm
Internal pull-up
+5 V
Figure 11: NPN open Collector Input
S-
P-
2
1
3
5
4
P+
S+
COM
INPUT SIGNAL
V
PNP NPN
mV
LEVEL
TYPE
PNP
SENSOR
4.7 k-ohm
Internal pull-down
Figure 12: PNP Sensor Powered by Internal Supply
S-
P-
2
1
3
5
4
P+
S+
COM
INPUT SIGNAL
V
PNP NPN
mV
LEVEL
TYPE
SWITCH
INPUT
4.7 k-ohm
Internal pull-up
+5 V
Figure 13: Switch Input Connections