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Chapter 4
Power Connections
power supply. Failure to do so could permanently damage the NI 6513 device and the
power supply if it is not protected.
Figure 4-11.
NI 6513 Output Signal Connection Example
Caution
Make sure that
P<4..7>.COM (VCC)
is connected to the positive pole of
the power supply and that
P<4..7>.GND
is connected to the negative pole of the
power supply. Failure to do so could permanently damage the NI 6515 device and the
power supply if it is not protected.
Figure 4-12.
NI 6515 Output Signal Connection Example
Caution
Make sure that
COM (VCC)
is connected to the positive pole of the
power supply and that
GND
is connected to the negative pole of the power supply.
Failure to do so could permanently damage the NI 6517 device and the power supply
if it is not protected.
Volt
a
ge
Reg
u
l
a
tor
P<0..7>.COM (VCC)
P<0..7>.<0..7>
P<0..7>.GND
+
–
DC
LOAD
+5 V ~ +
3
0 V
O
u
tp
u
t
Photoco
u
pler
+
3
.
3
V
NI 651
3
D
a
rlington
Driver
Volt
a
ge
Reg
u
l
a
tor
P<4..7>.COM (VCC)
P<4..7>.<7..0>
P<4..7>.GND
+
–
DC
LOAD
+5 V ~ +
3
0 V
O
u
tp
u
t
Photoco
u
pler
+
3
.
3
V
NI 6515
D
a
rlington
Driver