| 摘要 |
PURPOSE:To speed up positioning without change and adjustment of electric parts by resetting moving pulses corresponding to residual and excessive pulses in an error register when a member to be positioned reaches a prescribed positioning position and holding the member on the prescribed positioning position. CONSTITUTION:A main control part 2 adds excessive pulses to a moving pulse value DP neccessory for original movement and outputs the added value to the error register 6 as a moving pulse value DP. The main control part 2 monitors the integrated value TA of a present position counter 5, and when a pocket 15a of a tool drum 15 reaches a prescribed positioning position EX, resets the moving pulse value DPX corresponding to the excessive pulse value left in the register 6 to ''0''. Consequently, a moving command VDP is also reset to ''0'', so that a motor 11 is kept at the stopped state at the point of time and the tool drum 15 is also held so that the objective pocket 15a is precisely positioned on the positioning position EX. |
