Parker EME Setting up Compax3192-120113 N08 C3I12T11 - December 2010 109Absolute encoderUsing a SinCos © or EnDat Multiturn absolute value sensor as feedback system, theabsolute position can be read in over the entire travel range when switching on theCompax3. This means that a machine zero run is not necessary after the switchingon (feedback may not be shifted by the absolute range while switched off).In this case the reference only needs to be established once at initial commissioning time after an exchange of motor / feedback system after a mechanical modification and after an exchange of device (Compax3); does not apply for the "Store absoluteposition in feedback" function. after a configuration downloadby carrying out a machine zero run.The homing mode 35 "MN at the current position (see on page 118)" isappropriate for this, because it is therewith possible to operate without proximityswitch, but any other homing mode is possible too - if the hardware prerequisitesare fulfilled.When you have once re-established the reference, reset the machine zero runmode to "without machine zero run".Operation with MultiTurn emulationYou can simulate the function of a Multiturn over the entire travel distance by theaid of a Multiturn emulation. A resolver or a SinCos © / EnDat Singleturn feedback issufficient as a feedback signal from the motor.It differs from the physical Multiturn in the way that the motor may not be moved bymore than half a turn if Compax3 (24VDC) is switched off - unless the absoluteposition is lost.Besides that, the Multiturn emulation offers the same function as the physicalMultiturn feedback.You can switch on the Multiturn emulation directly in the wizard.You can assign the maximum permissible motor angle via the Multiturn validitywindowIf Compax3 states after switching on that this value is not exceeded, then das"Referenziert" gesetzt (Zustandswort Bit 12 oder Ausgang M.A8) is applied.Compax3 restores nevertheless the absolute position, the motor angle is correct,the absolute position may however not be correct, if the motor was moved by morethan the validity window while currentless.In this case, the drive is considered “not referenced” and the software end limitmonitoring is inactive!For a unique machine zero run the same conditions apply as for the use of anabsolute encoder (Multiturn).Attention:Machine referencerun
