Danaher Motion Kollmorgen Speciality Electronics Appendix C
SERVOSTAR CD-LITE User Manual 35
Appendix C
Linear Motor with CD-LITE
The CD-LITE maintains only rotary variables. To use a linear motor, you should convert the linear
parameters to rotary values from the motor data sheet:
PolePitch [mm]
Vmaxl (Max linear Speed) [mm/sec]
BEMFl (Linear Back EMF) [Vpeak/m/sec L-L]
Motor poles usually it is 2
Resolution [uM] micron before quad
Calculate CD-Lite parameters
♦ MENCTYPE according to the feedback type
♦ MSPEED = Vmaxl x 60 / PolePitch [RPM]
♦ MKT = BEMFl x PolePitch / 60 x 16.54 = [10-3Nm/RMS AMP]
♦ MENCRES = PolePitch / Resolution [Motor Rev]
♦ MENCOFF = 0 (if MENTYPE =6)
♦ MPHASE please check hall table and compare halls phasing.
♦ VLIM = Vllim x 60 / PolePitch [RPM]
♦ VOSPD = Vlospd x 60 / PolePitch [RPM]
♦ VSCALE = Vlscale x 60 / PolePitch [RPM]
♦ VMAX is automatically calculated after execute the command CONFIG (for further information see CD-
Lite Variable and Command Reference) [RPM]
One Pitch
PFB = 4 X MENCRES
PRD
0
65536
Electrical degree
360
100001 101011010110
60120180240300
MPHASE
MENCOFF
Z index pulse
0
Halls HA HB HC
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