NI 9478 Operating Instructions and Specifications
12
ni.com
I/O Protection
The NI 9478 provides protection against overc
u
rrent and
short-circ
u
it conditions.
Output Current Limit Thresholds
The NI 9478 provides two config
u
rable c
u
rrent limit thresholds
for the mod
u
le, Limit A and Limit B. The NI 9478 contin
u
o
u
sly
monitors the c
u
rrent thro
u
gh each o
u
tp
u
t channel and detects if
the c
u
rrent exceeds either of the c
u
rrent limit thresholds. Yo
u
can
config
u
re the c
u
rrent limit thresholds and check the c
u
rrent limit
o
u
tp
u
t stat
u
s in software to determine if the c
u
rrent thro
u
gh each
channel has exceeded the c
u
rrent limit thresholds. Refer to the
software help for more information abo
u
t config
u
ring c
u
rrent
limits and checking o
u
tp
u
t stat
u
s. Visit
ni.com/info
and enter
c
s
erie
s
doc
for information abo
u
t C Series doc
u
mentation.
Overcurrent Protection
Yo
u
can config
u
re each channel on the NI 9478 to disable the
o
u
tp
u
t if the c
u
rrent thro
u
gh the o
u
tp
u
t exceeds either c
u
rrent
limit threshold. This protects the NI 9478 from overc
u
rrent and
short-circ
u
it conditions and provides a way to limit the c
u
rrent
thro
u
gh an external device.
