16/10/2552 17:52 น. |
ส่วนใหญ่การคุมเชอร์โวเพื่อให้ได้ตําเเหน่งเเละความเร็วควรใช้plcเเบบใดครับ |
17/10/2552 11:37 น. |
type1 low cost (plc buit in hi speed in/out )ราคาถูก<br>มี Positioning and Pulse Output Functions<br>The PLC can output 2 points of 100kHz pulses simultaneously.<br>The PLC is equipped with 7 positioning instructions including Zero Return, Absolute Current Value Read, Absolute or Incremental Drive<br>2 type ราคาแพงมีเงิน มีงบ<br>ใช้ Positioning Control modue<br>Operation speed<br>200kHz max, 153000cm/min (200kHz or less). Automatic trapezoidal pattern acceleration/deceleration<br>(The interpolation drive is 100kHz or less).<br>Zero return<br>Manual operation or automatic operation. DOG type machine zero return (The DOG search function is provided). An automatic<br>electric zero return is possible by the electric starting point setting.<br>Absolute position detection The absolute position detection is possible with MR-J2 and the MR-H type servo motor with the ABS detection function.<br>Control inputs<br>Operation system: FWD (manual forward), RVS (manual reverse), ZRN (machine zero return), START (automatic start), STOP,<br>Manual pulse generator (2kHz max.), Single-step operation input (Depends upon the parameter setting).<br>Mechanical system: DOG (near-point signal), LSF (forward rotation limit), LSR (reverse rotation limit),<br>Interrupt: 4 points<br>Servo system: SVRDY(servo ready), SVEND (servo end), PG0 (zero point signal)<br>Control outputs<br>Servo system: FP (forward pulse), RP (reverse pulse), CLR (counter clear). |