cdsutils: stepping error in ISC LOCK guardian
LLO Log 48045
FromThe ISC LOCK guardian threw an abnormal error during the FINALIZE LOW NOISE state on the last lock. The log is shown below. It seemed to fail to write to the LSC-REFL_SERVO_IN1GAIN on the 3rd of 11 steps while ramping that channel, after which it throws the error message and doesn't move on. I had to manually ramp this gain up to it's final value (1dB) and then I manually skipped the guardian to the next state.
This is a weird error that reminds me of beckhoff channel sticky slider disease that we experienced in the early days of aLIGO. Note that the channel in question is a beckhoff channel.
I'm not sure if this is worth chasing up right now, but if it happens again it will certainly need looking into.
Tracked in FRS system as FRS 13442