NI SMD-7613/7614/7615/7616 User Manual
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© National Instruments
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25
Figure 34.
Driving a Relay Using Y1, Y2, or Y3
Figure 35.
Driving a Relay Using Y4
Connecting an Encoder (SMD-7615/7616)
The encoder connections use a HD-15 connector, which you must connect to your encoder as
shown below.
If your encoder is single ended, connect the encoder outputs to the A+, B+ and Z+ inputs. Leave
A-, B- and Z- unconnected. (Z is the encoder index signal and is optional.)
Figure 36.
Encoder Connection Pin Numbering
–
5-24 VDC
Power
Su
pply
+
YCOM
Y1/2/
3
Rel
a
y
1N49
3
5
su
ppre
ss
ion diode
IN/OUT1
–
5-24 VDC
Power
Su
pply
+
Y4–
Y4+
1N49
3
5
su
ppre
ss
ion diode
IN/OUT1
Rel
a
y
1
6
5
15
