RST-135 does not have PEC(Periodic Error Correction) function yet.
Strain wave gear has slightly different characteristics compared to worm gear in terms of periodic error.
Worm gears has good repeatability of periodic errors, while strain wave gear has the characteristic that the magnitude of periodic error varies depending on the weight of load.
In other words, periodic error depends on loaded equipment or direction of the telescope.
In this reason, it is difficult to apply the PEC function.
However, we making an effort to development of PEC. We will update it if there is further research or development.
2019.11.21
