Moog ACV Series - Object 0 X6324: Offset; Spool Position Controller; Figure 68: Single Stage Servo Valve; Single Stage Servo Valve

Moog ACV with CANopen bus interface 7 Servo valve functions
Spool position controller
B99224-DV018-D-211, Rev. A, October 2018 153
7.2.9.1 Object 0x6324: Offset
 Chapter "2.4.3 Units and prefix parameter", page 12
7.3 Spool position controller
The spool position controller controls the spool position. The parameters are set up by Moog during produc-
tion. Only for the sake of completeness will some details be explained in this section. The user should under-
stand the difference between a single stage and a dual stage servo valve.
Single stage means one spool position control loop. Dual stage means two (nested) spool position control
loops.
7.3.1 Single stage servo valve
Control structure of a single stage servo valve. For a single stage servo valve, there is only one spool position
controller which is the pilot stage controller.
Figure 68: Single stage servo valve
ValvePositionControl_DemandValueGenerator_ZeroCorrection
Index Sub-index Parameter name Data type Access
Per-
sistence
Value
range Default
0x6324 1 Offset INT16 rw Y INT16 0
0x6324 2 Unit UINT8 ro - UINT8 0
0x6324 3 Prefix INT8 ro - INT8 0
The spool position controller is configured in the factory and cannot be changed by the user.
Spool position
controller
T
P
B
A
s
u
<ActualValuePilot>
(0x3301)
<SplActualValue>
(0x6301)
Spool position
actual value path
 Chapter 7.3.5
 Chapter 7.3.4