Installation manual

Danaher Motion Kollmorgen SERCOS Interface Setup
SERVOSTAR
®
S and SERVOSTAR
®
CD Series 64
The following formulas may be used to convert to and from the SERCOS
interface units and rpm.
Vel {RPM} = Vel {cnts/CUCT * 256} * 1875 / (8 * Cnts * CUCT)
Vel {cnts/CUCT * 256} = Vel {RPM} * 8 * Cnts * CUCT / 1875
EQUATION NOTES
1) Cnts = the number of encoder (or resolver equivalent) counts per revolution.
Where: Encoder counts = Encoder lines * 4.
Resolver counts = 2^16 * MResPoles/2
2) CUCT = The control unit cycle time (IDN 1) in mS.
3) The units "CUCT/ms" is the number of CUCT periods per mS. For
example, a 2 ms CUCT has 1/2 a CUCT per 1 mS.
• Remember the following when monitoring a SERCOS interface drive
through the serial port,:
1) the SERCOS interface address is also the serial MultiDrop address
2) SERCOS interface operation changes the UNITS variable to
internal units
• The SERCOS interface version of the SERVOSTAR is not enabled
automatically on power-up, even with the drive address set to 0.