BPM stepper motor strut information

CMA stepper motor is 40 steps/rev of motor

Gear box has a 256 reduction

10240 steps per output shaft revolution

0.5mm per revolution of output shaft.

One output shaft revolution produces about 1.5 Volts on the LVDT.

Full travel of motor from lock to lock is about 159500 steps.

Software limits are set at +- 9 volts.

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SIS Information

SIS saturation levels checked 4/14/06. Saturate at ~2.75 Vp-p (+/- 1.38 V).

SIS #	type	s/n
0	3301	SIS3301/62
1	3301	SIS3301/182
2	330x	SIS330x/187

^{...as of 4/14/06}

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ATF2 Current Setup

4/16/06 - j.may
Installed couplers in backward (into cavity) orientation, setup with cal tone @6434 MHz from R&S source, -10 dBm out on the front panel. Found LO source had been changed to 3000 MHz. Changed back to 6449 MHz from HP8672A.

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KEK BPM Current Setup

4/16/06 - j.may
Connected patch cables (on blocks) for Locking box for KEK bpms (running ATF2 ProtoElectronics).