Keba ServoOne User Manual

Signal correction (GPOC)
GPOC is a special KEBA online process for improving the quality of SinCos signals
before they are used to calculate a position. If “SINCOS(1)” is selected as the “main
interface,” this process may be useful. For details see Section "Signal correction
GPOC (Gain Phase Offset Correction)" on page 75.
P No. Index Name / Settings Unit Description
505 0 ENC_CH1_Sel  Encodertypeselection
  OFF(0)  Functiondisabled
  SINCOS(1)  Sin/Cosencoder
  SSI(2)  DigitalSSIencoder
  TTL(3)  TTLencoder
  EnDat(4)  DigitalEnDatencoder(2.1or2.2)
  HALL(5)  DigitalHallsensor
  BISS(6)  BISSencoder(specialsoftware)
  HALL_TTL(7)  HalleffectsensorwithTTL
540 0 ENC_CH1_Abs  Absolutepositioninterfaceselection
  OFF(0)  Noadditionalabsolutevalueinterface
  SSI(1)  SSIinterface
  ENDAT(2)  EnDatinterface
  HIPER(3)  HIPERFACE®interface
  SSI_CONT(4)  SSI-interfacewith1mscontinuousclock
555 0 ENC_CH1_Info  Encoderinformation
Table 6.5: Channel Ch1 encoder configuration (X7) parameters
6.5.1MainparametersforencoderchannelCh1
The following table lists the most important parameters for the Ch1 encoder channel.
These parameters are then described in the chapters for selecting a special encoder
with P505[0] - ENC_CH1_Sel and P540[0] - ENC_CH1_Abs.
l Someoftheparametersareself-explanatory,suchasLines,MultiTand
SingleT.
ID No.: 0842.26B.5-01Date: 09.2020
ServoOne- Device Help
60
6 Encoder
l CodeandModeareusedtosetSSImodes.IfMode=1,wirebreakmonitoring
(ifany)willbedisabled,forexample.IfMode=0,itwillbeenabledinstead
(default).
l Inthecaseoflinearencoders,PeriodLenandDigitalResolutionwillbe
neededinsteadofMultiTandSingleT.
P No. Index Name / Setting Unit Description
505 0 ENC_CH1_Sel  MainselectiononencoderchannelCh1
540 0 ENC_CH1_Abs  Absolutevalueinterfaceforone-timereading
542 0 ENC_CH1_lines  NumberofanalogueSin/Coslinesperrevolution
(TTLlinesaswell)
543 0 ENC_CH1_MultiT  Numberofmulti-turnbitsforthedigitalinterface
544 0 ENC_CH1_SingleT  Numberofsingle-turnbitsforthedigitalinterface
545 0 ENC_CH1_Code  Codeselection(forSSIencoders)(binary,Gray)
546 0 ENC_CH1_Mode  Modeselection(forSSIencoders)
547 0 ENC_CH1_MTBase  Definitionofpointofdiscontinuityinmulti-turn
range
548 0 ENC_CH1_MTEnable  EnableMultiTurnuse(negativelogic,1=MToff)
551 0 ENC_CH1_EncObsMin  ComparisonvalueforSin/Coswirebreak
monitoring
553 0 ENC_CH1_PeriodLen nm Linearencoders:LengthofananalogueSin/Cos
segmentinnm(nanometres)
554 0 ENC_CH1_
DigitalResolution
nm Linearencoders:Lengthofadigitalincrementin
nm(nanometres)
616 0 ENC_CH1_CycleCount  Samplingcyclein:nx125μ(microseconds)
Table 6.6: Main parameters for encoder channel Ch1
MTBase, when used with its default setting, will ensure that the absolute value
initialization “starts up with plus-minus”: I.e. the encoder’s multiturn value range from
0 to max will be mapped to -1/2max to +1/2max; the second half of the measuring
range will be initialized as negative; in this case, the point of discontinuity will be
found at 1/2max. --- This can be changed with MTBase! --- When MTBase=0, the
absolute value initialization will, for example, “start up with zero to max”: I.e. the

Keba ServoOne Specifications

General

Brand	Keba
Model	ServoOne
Category	Controller
Language	English