Moog ACV with CANopen bus interface
7 Servo valve functions
Control modes
B99224-DV018-D-211, Rev. A, October 2018
135
7.1.12 p/flow control
The p/flow control mode is selected by setting the parameter <ControlMode> (0x6043) to 14 (p/flow control).
Figure 54: p/flow control
7.1.13 Sample frequency
The <BasicSampleFrequency> (0x3030) is the frequency of the real time control loop. With this frequency the
actual spool position is calculated from the LVDT signal and, i.e. the current controller, pressure controller and
spool position controller are calculated.
Axis position
controller
<P
os
Co
nt
ro
lle
rO
ut
pu
t>
(0x
550F)
Transducer
interface
Any signed
16 bit / 32 bit
param. from the
object dictionary
<ActualValue1...8>
(0x6210...0x6217)
Onl
y one si
gn
a
l w
ill
be ro
ut
ed
de
pen
di
ng on
the
<C
on
trol
Mode
> (0
x60
43)
Axis velocity
controller
<
V
e
lC
o
nt
ro
ller
Out
put
>
(0
x5
519
)
Transducer
interface
Encoder input
<ActualValue1...8>
(0x6210...0x6217)
Flow
controller
<
F
lwCo
nt
ro
ller
Out
put>
(0x5
20F
)
Transducer
interface
Analog inputs
<ActualValue1...8>
(0x6210...0x6217)
<E
nc
od
er
In
pu
t>
(0x
5613)
T
P
B
A
<ActualValue1...8>
(0x6210...0x6217)
<P
rsDe
m
andV
al
ue>
(0
x63
90)
<
S
pl
D
emandV
a
lu
e>
(0
x6
31
0)
<
D
e
m
andV
al
ueP
ilot
>
(0x
330
0)
Fl
ow
/
pre
ssu
re
(p)
Sw
itch
o
ve
r
s
u
Actual value
transducer
interface
Pressure
demand value
generator
#P
res
sur
eS
e
tp
oi
nt
#
Spool position
demand value
generator
Pressure
controller
<
P
rsCo
nt
ro
ller
Out
put>
(0
x2
41
8)
Pressure
demand sign
Spool position
controller
Analog inputs
s
u
p
u
p
u
p
u
v
u
p
u
p
u
p
u
Axis position
demand value
generator
#A
xi
sP
os
iti
onS
et
poi
nt
#
<V
el
oc
ity
D
eman
dV
al
ue
>
(0
x5615)
<F
lo
wD
em
an
dV
al
ue
>
(0x
521
3)
<
P
osD
emand
V
al
ue>
(0
x66
10)
Axis velocity
demand value
generator
Flow
demand value
generator
#A
xi
sV
e
lo
ci
ty
S
et
poi
nt
#
#
F
lo
w
S
et
po
in
t#
The signal #PressureSetpoint# is an internal signal only. It links the signal from the pressure set-
point value path to the pressure demand value generator.
Chapter "6.2.4 Pressure setpoint value path", page 61
The signal #FlowSetpoint# is an internal signal only. It links the signal from the flow setpoint value
path to the flow demand value generator.
