Moog MSD Servo Drive Series

7.10Processcontroller
The process controller function enables a measured process variable to be
controlled via a PI controller to a reference (setpoint) value.
7.10.1Features
 Processcontrollercalculationinspeedcontrollercycle
 ProcesscontrollerasPIcontrollerwithKpadaptation
 Processcontrolleractualvalueselectableviaselector
 Filteringandoffsetcorrectofreferenceandactualvalues
 Processcontrolleroutputcanbeconnectedtodifferentpointsinthegeneral
controlstructure
 Processcontrollerisusableinallcontrolmodes
 Cycletime:125µs(iftheswitchingfrequencyis4kHz:250µs)
 Theprocesscontrollerstateischangedwithacontrolword
 Theprocesscontrollerstateisindicatedwithastatusword
 Theprocesscontroller’sintegraltermcanbereducedinatargetedmanner
withacontrolcommand
MOOG
ID
No.: CB40859-001 Date: 02/2018
MSD Servo Drive- Device Help
154
7 Control
7.10.2Descriptionofcontrolstructure
Fig. 7.41: Schematic of process controller
7.10.2.1Controlandstatuswordofprocesscontroller
The process controller can be activated either with the control word, P2681[0] -
CON_PRC_CtrlWord, or directly via a digital input (for more information on how
to select a function for the digital inputs, see Section "Digital Inputs" on page
232, "START_PRC(48) = Start process controller” setting).
Bit Name Description
0 On Enablingtheprocesscontroller
1 Reset
Resetstheintegraltermwitharamp
(P 2680[1])
Table 7.32: Control word P 2681[0]