6K Misc - Servo Update Rate
The catalog and brochure state the 6K’s servo update rate as "as fast as 62.5usec per axis." This may be confusing, but it is accurate. The actual rates are:
6K2Â = 125usec
6K4Â = 250usec
6K6/8Â = 500usec
For example, axis 1 on a 6K4 will be updated within 62.5usec, then axis 2 within 62.5usec, similarly for the remaining axes. Thus, by the time it is axis 1 turn again, 250usec has elapsed. So, each individual axis gets updated at the above rates.