Reports 1-1 of 1 Clear search Modify search
IOO (IMMT)
keiko.kokeyama - 18:06 Thursday 31 August 2017 (3315) Print this report
IMMT2 drive check

[Nakano, Kokeyama]

IMMT2's behavior was checked. We confirmed:

Magnets and coils polarizations are correct.
Cabling from the suspension to the digital system is correct.


Namely, magnet polarizations [N, S, N, S] & coil direction [R, R, R, R] (or all opposite) for [H1, H2, H3, H4].

Fine balance is not done yet because IMMT2 will still have some developments (base plate to be inserted & alignment to the end station).

Some details:
First, we alined the folded oplev of IMMT2.
COILOUTF = (1, -1, 1, -1)
When COILOUT OFFSET 5000 cts was turned on, the oplev [urad] moved for
H1
OL P +31
OL Y -75

H2
OL P -20
OL Y -63

H3
OL P -15
OL Y +60

H4
OL P +35
OL Y +92

The caibration values posted by Chen-kun, klog 3303, were used. It may noe be precise because we re-alined the folded oplev.

Mostly fine.

Search Help
×

Warning

×