Application of LS7266R1 in Dual-axis Position Signal Detecting
Youping Chen · Yibiao jishu yu chuanganqi · 2007
For some metal-working equipments,such as NC machine and machining center,most of them utilize the linear or circle grating encoder to measure linear or angular displacement.Output signals of the sensor were transferred to duplex quadrature encoding pulses.For the multi-axis position signal detecting device of the grating encoder in the closed-loop position control system,function and internal structure of a dual-axis quadrature counter chip LS7266R1 was introduced and analyzed.The position collecting circuit and software design based on the chip LS7266R1 were proposed.An actual example of using the chip LS7266R1 to measure the multi-group digital signals from the position detecting device in an NC system was presented.It is testified that use of the chip not only have a flexible configuration,multi-application fields and wide countering and frequency rang,but also may simplify the design of system hardware and improve the system reliability.