Moog ACV with CANopen bus interface
7 Servo valve functions
Control modes
B99224-DV018-D-211, Rev. A, October 2018
130
7.1.5 Spool position control closed loop for single stage and dual stage
valves
The spool position closed loop mode is selected by setting the parameter <ControlMode> (0x6043) to 2 (spool
position control closed loop).
Figure 48: Spool position control closed loop for single stage and dual stage valves
Chapter "7.1.1 Object 0x6043: Control mode", page 128
Chapter "7.2.1 Object 0x6310: Demand value", page 136
7.1.6 Pressure control open loop
The pressure control open loop mode is selected by setting the parameter <ControlMode> (0x6043) to 3
(pressure control open loop). The behavior is the same as in the spool position closed loop control mode.
Chapter "7.1.5 Spool position control closed loop for single stage and dual stage valves", page 130
7.1.7 Pressure control closed loop
The pressure control closed loop mode is selected by setting the parameter <ControlMode> (0x6043) to 4
(pressure control closed loop).
Figure 49: Pressure control closed loop
T
P
B
A
<ActualValue1...4>
(0x6110...0x6113)
<P
rsD
em
andV
al
ue>
(0x63
90)
<
S
pl
Dem
andValue
>
(0
x6
310)
<De
m
andV
al
ueP
ilot
>
(0x33
00)
Spool po
sition (
Q
)
/
pressu
re
(
p)
swi
tchove
r
s
u
Pressure actual
value path
Pressure
demand value
generator
#P
ressu
re
S
etp
oin
t#
Spool position
demand value
generator
#Spo
olPos
iti
on
S
etp
oin
t#
Pressure
controller
<Co
nt
ro
ller
O
ut
put>
(0x2
41
8
)
Pressure
demand sign
Spool position
controller
u
p
u
p
p
u
Analog inputs
The signal #SpoolpositionSetpoint# is an internal signal only. It links the signal from the spool po-
sition setpoint value path to the spool position demand value generator.
Chapter "6.2.3 Spool position setpoint value path", page 59
This mode is for commissioning of the servo valve only and should only be used by Moog staff..
T
P
B
A
<ActualValue1...8>
<P
rsD
em
a
ndV
al
ue>
(0
x639
0)
<S
pl
D
em
and
V
al
ue>
(0x
6310
)
<Dem
a
ndV
a
lu
eP
ilo
t>
(0
x3
30
0)
S
pool
pos
iti
on (Q)
/
pres
sur
e (p)
sw
itc
hov
er
s
u
Actual value
transducer
interface
Pressure
demand value
generator
#P
re
ss
ur
eS
et
po
in
t#
Spool position
demand value
generator
#S
pool
P
os
iti
onS
etp
oi
nt
#
Pressure
controller
<
P
rs
Co
ntr
ol
lerOut
put
>
(0
x2
41
8)
Pressure
demand sign
p
u
p
u
p
u
Analog inputs
Spool position
controller
