This dimension control machine measured the width through measur ing the angle of rotation of edge axis using rotary encoder in the end of the m ain drive edge axis. It was controlled by PLC and the automatic width control can be realized.
Actual operation shows that using the rotary coder in the rotating angle digit process control system can bring about such advantages as accurate positioning, easy setting ,and safe and consistent operation.
Hardware system of the multi-function TIG welding inverter controller is composed of the MSP430F449 SCM control center unit and the man-machine interface unit with VK65 type LCD and digital contact encoder.
PLC uses the appropriate value calculated by the PID controlling algorithm is used to adjust the rotating velocity of motor,thus control the shot velocity.
Power output due to concentric and eccentric contractions was measured using a power measurement instrument with a rotary encoder attached to the pulley.
Briefly described here is the application of rotary coder to O.D. 100 mm plug pipe mill. Actual operation shows that using the rotary coder in the rotating angle digit process control system can bring about such advantages as accurate positioning, easy setting ,and safe and consistent operation.
It combines the real example of producing spiral welded pipe cement inside applying unit for ALIM GROUP in Indonesia. It points out fixed position control system of applying carriage through applying with a Mitsubishi FX Series PLC programmable controller, frequency conversion speed adjusting controller and photo electrical rotation encoder, etc..
One automatic measuring unit for plate thickness was developed. The co ntrol of unit and the measurement of thickness were carried out by multi-chip CPU. Two of them carried out identifying direction of rotary encoder and counting for high speed pulse seperately. The practice performance had testified that this system have features of the ha rdware being simple,the investment being saving,producing the desired rusult bei ng quick,the serviceability being good and the operation being reliable ,etc.