NI 9477 Operating Instructions and Specifications
8
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Figure 2.
Connecting a Device to the NI 9477
Increasing Current Drive
Each channel has a contin
u
o
u
s o
u
tp
u
t c
u
rrent of 1 A. If yo
u
want
to increase the o
u
tp
u
t c
u
rrent to a device, yo
u
can connect any
n
u
mber of channels together in parallel. For example, if yo
u
want
to drive 4 A of c
u
rrent, connect DO<0..3> in parallel as shown
in Fig
u
re 3. Yo
u
m
u
st t
u
rn all parallel channels on and off
sim
u
ltaneo
u
sly so that the c
u
rrent on any single channel cannot
exceed the 1 A rating.
Device
+
–
NI 9477
COM
DO
External
Power
Supply
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