with Ushiba-san

Investigation

1. Moved HWP from 188deg to 157deg, but no response.
I had included in the script a countermeasure for the error without rotation, but this time it did not enter this error.
Therefore, it had changed to 157deg. Once it was changed back to 188deg.

2. Unplugged and plugged in the USB HUB cable.
Moved the HWP from 188deg to 157deg, but there was no response.
However, when I moved it in the opposite direction, it worked.

After that, it started working by repeated operation.

Result

The site was left as it was because there was other work to be done.
The log was added to the script so that it can be analyzed next time.

It is unlikely that there is a problem with the power supply since the power is supplied by the HWP extension cable.
Next time, we will add a PC for control and make sure the USB cable length is shortened.
As for IFO_REFL, we will stop using PoE power supply and add a rebooter.