MPG / Encoder
5V
X310
CM.D
5V SB Close
5V NPN MPG/Encoder
MB3
5V SB Close
X311
0V
Figure 16, MPG/Encoder connection circuit
MB3 board allows us to make a connection to low voltage devices. In this case, Figure
16 a 5V MPG device. It is similar to most encoders. Some encoders can do both source
and sink. So, it depends on us what input type we want to connect. The Figure 10, on
page 15 gives you an idea how to approach it.
AC input
MB3
5V SB Open
X
311
CM
.D
AC inputs for black out sensing
110
/220VAC
24 VAC
Figure 17, AC source interfacing.
Sometime we would like to make a connection with strange part. Figure 17 shows how
to connect and sense an AC signal. If a brown out or black out happened the controller
is able to know beforehand then it commands lock z axis brake before all devices losing
power. In this case, some power must be kept in a big capacitor as a backup for
controller and drives for few seconds only.
Outputs
Transistor Sink Output
Figure 18, Output terminals
Figure 18 shows 14 output terminals, each output can sink current up to a maximum of
70mA with a total maximum of 500 mA per group of 7 outputs.
www.CNCRoom.com Page 18
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