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NI 9502 Operating Instructions and Specifications
Figure 2 shows the NI 9502 working with the LabVIEW FPGA
module in FOC commutation mode.
Figure 2.
NI 9502 FOC Commutation Mode Block Diagram
Po
s
ition
Loop
Velocity
Loop
FOC
Algorithm**
F
au
lt
Monitor
Bridge
Controller
F
au
lt
Detection
C
u
rrent
S
en
s
e
Encoder
Feed
ba
ck
Motor
Velocity
Comm
a
nd
C
u
rrent
Comm
a
nd*
Po
s
ition
S
etpoint
L
ab
VIEW FPGA Mod
u
le
NI 9502
Encoder Feed
ba
ck
Po
s
ition
Decoder
Ph
as
e U &
W C
u
rrent
Velocity
Feed
ba
ck
Po
s
ition
Feed
ba
ck
Velocity
E
s
tim
a
tor
* Proportion
a
l to Torq
u
e
** Av
a
il
ab
le with the L
ab
VIEW NI
S
oftMotion Mod
u
le Premi
u
m
S
VPWM
Gener
a
tor
s
(
3
Tot
a
l)
H
a
ll
Inp
u
t
s
C
S
erie
s
I/O Mod
u
le
3
-Ph
as
e
Bridge