THOMX commissioning ELogbook

THOMX orders THOMX installation THOMX commissioning THOMX control command

Status of commissioning, report also here plots are reports.

Not logged in

List | Find | Login | Help

controller M1 & M4 (plan mirrors) with IcePap controllers, posted by Ronic Chiche at ThomX igloo about mechanics | lasers and optics | cabling

controller M1 & M4 (plan mirrors) with IcePap controllers, posted by Ronic Chiche at ThomX igloo about mechanics | lasers and optics | cabling

controller M1 & M4 (plan mirrors) with IcePap controllers, posted by Ronic Chiche at ThomX igloo about mechanics | lasers and optics | cabling

Message ID: 317 Entry time: Thu Jan 25 12:45:41 2024 In reply to: 316 Reply to this: 319

Author:	Ronic Chiche
Status:	Fixed
Type:	info
Category:	mechanics \| lasers and optics \| cabling
Location:	ThomX igloo
Title:	controller M1 & M4 (plan mirrors) with IcePap controllers

this double motors scheme works good.

if motor P4 is used by increasing value, the FP-cavityPZT signal (pink signal on scope) goes HIGHER
if motor P1 is used by increasing value, the FP-cavityPZT signal (pink signal on scope) goes LOWER

!!! CAREFUL !!!
after each session, it is mandatory to put the motors back to their initial position to avoid FP-cavity misalignment.
on P1 : - 900 000 steps
on P4 : - 360 000 steps

Ronic Chiche wrote:

previously, we have connected motor M4 with an IcePap controller.
see this post : https://elog.lal.in2p3.fr/FPC/THOMX+commissioning/278

due to the backlash behavior of the FP-cavity motors, it is impossible to work in both directions on one motor when the FP-cavity is locked.
so, we decided to use also the motor M1 to work in the other direction.
then, normally M1 will work in one direction and M4 in the other direction.

motor M1 (or P1Z) which was on the axis 9 on the ISP controller has been assigned to OC/OP/OCH.01-MOT.06

motor M4 (or P4Z) which was on the axis 12 on the ISP controller has been assigned to OC/OP/OCH.01-MOT.03

ELOG V3.1.4-395e101