Moog MSD Servo Drive Series User Manual

referencemarkswillthesystemdetermine,basedonPeriodLen>0,thatthe
encodersystemislinearandnotrotary.
 P 555[0] - ENC_CH1_Info=EncoderInformation
Thisparameterisavailabletotheusersothattheycanenteratextoftheir
choice(maximum31characters).Thistextshouldbeusedtodescribethe
encoderonchannelCh1

P 616[0] - ENC_CH1_CycleCount=Samplingcyclein:nx125µs
(microseconds)
TheCycleCountparametercanbeusedtoslowdownthetimingforthe
cyclicalSSIencoderevaluation.Bydefault,CycleCount=1,i.e.thedefault
settingcorrespondsto125µssamplingandcyclesfortheencoder
evaluation.Differentsettingsmustbeviewedasspecialcasesand
accordinglymustonlybeusedwhennecessary(see Section"SSI
(cyclical)X7"onpage66).

P 610[0] - ENC_CH1_NominalIncrementA=distancecodedabsolute
encoder
P 611[0] - ENC_CH1_NominalIncrementB=distancecodedabsolute
encoder
TheNominalIncrementAandNominalIncrementBparametersmakeit
possibletorunSin/Cosincrementalencoders(withoutanabsolutevalue
interface)withanalogdistance-codedreferencemarks.Forexample,ifyou
wereusingtheHeidenhainROD280Cwith18000Sin/Cospulsesper
revolutionand36distance-codedreferencemarks,youwouldneedtoset
NominalIncrementAto1000signalperiodsandNominalIncrementBto1001
signalperiods.ThisfunctionalityisenabledifNominalIncrementA>0(see
Section"Distance-codedreferencemarks"onpage101).
 P 617[0] - ENC_CH1_AbsInitMode=Modeabsolutevalueformation
AbsInitModecanbeusedtoselectvariouspossiblesettingsfortheabsolute
valueinitialization:
o
DIG_ANA(0)-Standard:
Absolutevalueinitializationusingamixofthedigitalandanalog
components(thisisthedefaultmode)
MOOG
ID
No.: CB40859-001 Date: 02/2018
MSD Servo Drive- Device Help
64
6 Encoder
o
DIG(1)-Digital:
Onlythedigitalcomponentwillbeusedfortheabsolutevalue
initialization.
o
SEK_SEL37(2)-Automatic:
DigitalifSTbits>(LineBits+8);otherwisestandard(criterionapplies
withHIPERFACESEKL-37encoders)
o
SSI_180(3)-SameasStandard,except:
InthecaseofSSI,thequadrantalignmentofthedigitalvaluerelative
totheanalogSin/CostracksisnotthesameaswithEnDat,butis
insteadoffsetby180degreesrelativetoEnDat,i.e.inthe“naturalQ
alignment”forthedigitalvaluerelativetothetracks.
 P 1900[0] - ENC_ETS=ETSmode,electronicnameplate
TheENC_ETSparametersupportswhatisreferredtoasthe“Moog
electronicratingplate”forHIPERFACEencoders.Ifthisparameterissetto
SCAN(0),themotor’scommutationoffsetwillbereadfromtheencoder’s
OEMmemoryandcopiedtoP 349 - CON_FM_MConOffset,butonlyifthis
offsetcanbeunambiguouslyidentifiedintheencoder(encodermemory
scanning).IftheparameterissettoNEVER(0)instead,thisfunctionalitywill
bedisabled.
6.5.4.2.5SSIabsolutevalueinterface
If P540[0] - ENC_CH1_Abs = SSI(1), which is the normal setting, the absolute SSI
encoder position will be read once during the initialization phase; after this, the
cyclical encoder position will be acquired based on the Sin/Cos incremental
component.
The parameters for the SSI interface are described in Section "SSI (cyclical)X7" on
page 66, as are the differences in using the SSI interface with the “cyclical” method
and “one-time reading” method.
If P540[0] - ENC_CH1_Abs = SSI_CONT(4), which is a special case, the absolute
SSI encoder position will be read once during the initialization phase; after this, the
cyclical encoder position will be acquired based on the Sin/Cos incremental

Moog MSD Servo Drive Series Specifications

General

Brand	Moog
Model	MSD Servo Drive Series
Category	DC Drives
Language	English