Moog ACV with CANopen bus interface 7 Servo valve functions
Pressure controller
B99224-DV018-D-211, Rev. A, October 2018 180
7.5.15 Derivative element (PD)
This element differentiates the pressure actual value <PrsActualValue> (0x6381) with a differentiator element
including a first order filter with a time constant T1. Also a proportional gain element is implemented.
Figure 86: Proportional derivative element 1 (PD)
7.5.15.1 Object 0x2308[N]: Differentiator gain
This parameter contains the gain of the first differentiator.
7.5.15.2 Object 0x2309[N]: Differentiator T1
This parameter contains the time constant of the first differentiator in seconds.
7.5.15.3 Object 0x2324[N]: Spool Position Feed Forward Gain
The gain controls the influence of the spool position to the derivative element (PD).
f(x)
<DifferentiatorT1>
(0x2309[N])
<SpoolPositionFeedForwardGain>
(0x2324[N])
<DifferentiatorGain>
(0x2308[N])
<SplActualValue>
(0x6301)
<DifferentialPart>
(0x2312)
<PrsActualValue>
(0x6381)
ValvePressureControl
Index Sub-index Parameter name Data type Access
Per-
sistence Value range Default
0x2308 N=1…16 DifferentiatorGain FLOAT32 rw Y –inf…+inf 0.0
ValvePressureControl
Index Sub-index Parameter name Data type Access
Per-
sistence Value range Default
0x2309 N=1…16 DifferentiatorT1 FLOAT32 rw Y 0.0…+inf 0.0
ValvePressureControl
Index Sub-index Parameter name Data type Access
Per-
sistence Value range Default
0x2324 N=1…16 SpoolPositionFeedForwardGain FLOAT32 rw Y 0.0…+inf 0.0