Rorze RD-323MS - １９．Difference from RD-323 MS and RD-323 M50(M10); Difference of Wave Form; Stop Position Error (at Low Speed)

19. Difference from RD-323MS and RD-323M50(M10)
RD-323MS 13
１９．Difference from RD-323MS and RD-323M50(M10)
Especially we’d like the persons who use RD-323M50 before to read this section.
19-1 Difference of wave form
Driver Terminal Wave Form
RD-323M50
CLOCK OUT
(2P)
RD-323MS CLOCK OUT
However, CLOCK OUT MIC in RD-323M50 has no error,
because it is the same duty(50%) as RD-323MS.
19-2 Stop position error (at low speed)
Driver Wave Form
Internal
oscillation
RD-323MS
CLOCK OUT
(resolution:M8)
Stop position error described in here is the difference of the position when the driver was stopped at
CW ration and CCW.
This is because clock out of RD-323MS is the signal de-multiplied internal oscillation and motor is
always running in microstep mode.
Basic step angle
Stop position error＝──────── M: Number of pulse output per basic step angle
2M
(Example) Stop position error of 1.8ﾟ motor is as follows:
D5 D4 D3 D2 D1
Clockout
Resolution
Microstep
Resolution(M)
Stop position error
A＋B
０ １ １ １ ０ １ ６４ 0.9ﾟ 64 pulses
０ １ １ Ｘ １ ２ ６４ 0.45ﾟ 32 pulses
１ ０ １ １ ０ ５ ８０ 0.18ﾟ
16 pulses
０ ０ １ ０ １ ２５ ５０ 0.036ﾟ
2 pulses
However, in case of M50, M64, M80, stop position error doesn’t occur.
20μsec min.
A B
DUTY≒40～60%
(A：B＝4：6～6：4)
ccw cw
A B
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.