Reference Manual Owner's manual

50 Rockwell Automation Publication 750-RM001F-EN-P - February 2012
Chapter 5 General Device and Feedback Monitoring Configuration
Speed Resolution Accuracy for Rotary Systems
Table 5 - Encoder Resolution 16 lines/rev
Table 6 - Encoder Resolution 128 lines/rev
Table 7 - Encoder Resolution 1000 lines/rev
Overspeed Response Time, P24
(OverSpd Response) Setting
Speed (RPM)
1 10 100 1000 10,000 100,000
42 156.253 156.283 156.583 159.583 189.583 489.583
48 78.127 78.142 78.292 79.792 94.792 244.792
60 39.063 39.071 39.146 39.896 47.396 122.396
84 19.532 19.535 19.573 19.948 23.698 61.198
132 9.766 9.768 9.786 9.974 11.849 30.599
228 4.883 4.884 4.893 4.987 5.924 15.299
420 2.441 2.442 2.447 2.493 2.962 7.650
Overspeed Response Time, P24
(OverSpd Response) Setting
Speed (RPM)
1 10 100 1000 10,000 93,750
42 19.535 19.565 19.865 22.865 52.865 332.031
48 9.767 9.782 9.932 11.432 26.432 166.016
60 4.884 4.891 4.966 5.716 13.216 83.008
84 2.442 2.446 2.483 2.858 6.608 41.504
132 1.221 1.223 1.242 1.429 3.304 20.752
228 0.610 0.611 0.621 0.715 1.652 10.376
420 0.305 0.306 0.310 0.357 0.826 5.188
Overspeed Response Time, P24
(OverSpd Response) Setting
Speed (RPM)
1 10 100 1000 10,000 12,000
42 2.503 2.533 2.833 5.833 35.833 42.500
48 1.252 1.267 1.417 2.917 17.917 21.250
60 0.626 0.633 0.708 1.458 8.958 10.625
84 0.313 0.317 0.354 0.729 4.479 5.313
132 0.156 0.158 0.177 0.365 2.240 2.656
228 0.078 0.079 0.089 0.182 1.120 1.328
420 0.039 0.040 0.044 0.091 0.560 0.664