[Aritomi, Yuhang, Yaochin, Eleonora]

We have saturation of CC2 correction signal (8Vpp) and it seems coming from servo since we have this saturation without connecting piezo. HV amplifier we are using can take up to 10V and the gain is 30 and piezo for phase shifter can take up to 1000V.  So we are using 240V out of 1000V piezo range.