High side switching (HSS)
DigComm
DigIn
+24 Volt
0 Volt
Node
Application
PNP
High side switching (HSS)
DigComm
DigIn
+24 Volt
0 Volt
Node
Application
Low side switching (LSS)
DigComm
DigIn
Node
Application
0 Volt
+24 Volt
Low side switching (LSS)
DigComm
DigIn
Node
Application
0 Volt
+24 Volt
NPN
Fig. 8-9:
HSS and LSS
5. Keep in mind that these digital inputs do not have a high impedance. If
the application uses an open collector output to connect to these digital
inputs, use an NPN transistor for low side switching and use a PNP
transistor for high side switching, see
fig. 8-9 "HSS and LSS" on page
. It is not recommended to use an NPN transistor output in
combination with high side switching, as shown in
NPN output transistor" on page 70
.
High side switching (HSS)
DigComm
DigIn
+24 Volt
0 Volt
Node
Application
NPN
NOT RECOMMENDED
Fig. 8-10:
HSS with an NPN output transistor
6. 24 Volt Hall sensors can be connected to the digital inputs, use the
digital inputs DigIn0, DigIn1 and DigIn2 for the first axis, and use DigIn4,
DigIn5 and DigIn6 for the second axis. See
fig. 8-11 "24 Volt Hall sensor
for the connection of a Hall sensor with either
high side switched or low side switched outputs.
Fig. 8-11:
24 Volt Hall sensor connection
70/233
NY4120 and NY4120/10: PWM Drive Module
NYCe 4000 Multi-axis motion control system Hardware Sys‐
tem Manual
Bosch Rexroth AG R911337671_Edition 18