Mitsubishi Electric MELDAS MDS-R Series Technical Specification And Instruction Manual page 238

(3) Obtaining the tolerable number of positioning times
The tolerable cycle operation frequency per minute DP is calculated respectively for the standard
built-in regenerative resistor and option regenerative resistor.
Refer to expression (2-10).
• MR-RB30 (300W)
P
R
DP = 48 = 48×
•
1
E
R
• MR-RB50 (500W)
P
R
DP = 48 = 48×
•
2
E
R
Because the number of times described above is the number of cycle operations for 1 vertical axis
reciprocation, the number of positioning times is 2-fold. Thus, it is apparent that the MR-RB30
(300W) option resistor is required to satisfy the specified positioning frequency of 12 times/min.
With the vertical axis, the regenerative load tends to increase compared to the
POINT
horizontal axis, so provide an allowance when making a selection.
Appendix 2. Selection
300
= 9.79 (times)
1470.6
500
= 16.3 (times)
1470.6
A2 - 12
Number of positioning times = 19.6 (times)
Number of positioning times = 32.6 (times)