CNCroom MB3 User Manual

24
V
24
V NPN inputs
MB
3
X
203
CM
.
B
5V SB Open
0
V 24
V
24
V PNP inputs
MB3
X203
CM
.
B
5
V SB Open
0
V
5V
5
V NPN inputs
MB
3
X203
CM
.
B
5V SB Close
0V
5
V
5V PNP inputs
MB
3
X203
CM.B
5
V SB Close
0V
Figure 12, Basic input connections with external power
Figure 12 shows the 4 different methods to connect a switch with external power
supply. These connections are totally isolated from any part of the MB3 circuit. The
external circuits, for instance, could be the fault output of a VFD drive or plasma cutting
system, where rough interference noise appears on the device. Totally isolation is a key
to help ESS/MB3 avoiding from extreme interference.
0V
X203
CM.B
5V SB Open
0V
PNP inputs
MB3
X204
5V SB Close
5v
24v
5V SB Close
X205
5v
24v
Figure 13, Common 0V or PNP inputting can mix and match between 24V and
5V inputs
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CNCroom MB3 Specifications

General

Brand	CNCroom
Model	MB3
Category	Controller
Language	English