Operating Instructions COMPAX-M / -SOutput of variable voltage1248.4.36 Output of variable voltageThe direct output of variable voltage is supported via the D/A monitor channels 0 to3.Addressable using parameters P76 (channel 2) and P77 (channel 3)P76 Channel 2 X11/4P77 Channel 3 X11/5Resolution: 8 bit (incl. sign); corresponds to a resolution of 80 mVRange: -10V...+10VThe calculation for output on the 8 bit channels 2 & 3 is as follows:Parameter setting for required voltage U (-10V ... +10V)P76 (P77) = 39 + Y (39,Y)39: selection of voltage outputFor positive voltage: Y = U * 0.0101067 / 10VFor negative voltage: Y = U * 0.0101067 / 10V + 0.0202134(Note: set U negative in the 2nd formula)-10.0V+9.96V0.02021340.0101067Addressable using P71 (channel 0) and P72 (channel 1)P71 Channel 0 X17/1P72 Channel 1 X17/2Resolution: 12 bit (incl. sign); corresponds to a resolution of 5 mVRange: -10V...+10VThe calculation for the output on the 12-bit channels 0 and 1 is as follows:Parameter setting for required voltage U (-10V ... +10V)P71 (P72) = YP73 (P74) = 39: selection of voltage outputY = U * 101067 / 10V-10.0V+10.0V0.010106-0.0101067Service D/Amonitor (channels2 & 3):Value beforedecimal point:Value after decimalpoint:Characteristiccurve:Option D/Amonitor (channels0 & 1):Calculating theoutput value:Characteristiccurve:POSAPOSRSPEEDACCELOUTPUTPasswordSPEEDSYNCMarkreferencePOSRSPEEDPOSROUTPUTCamcontrollerWAITGOTOGOSUBRETURNENDREPEATIF I..ComparisonWAIT StartGOTO /GOSUB EXTIF Error/ StopArithmeticPositionmonitoringIdle displaySpeedmonitoringEngage /disengagebrake / finalstageVariablevoltage