Differences between revisions 2 and 3

Vacuum system control

Vacuum Unit

Vacuum unit (VU) is a set of vacuum pumps and gauges. KAGRA has a vacuum unit every 100m. So the total number of VUs is 60.

Each VU has ion-pumps, an ion-gauge,a convectron, a turbo molecular pump (TMP), a fore-line pump. The TMP and the fore-line pump will be stoped after initial pump down. So these are not under remote monitoring.

Agilent Ion Pump

Manual p64 - p71

We will use the J1-REMOTE I/O connector. We will not use the serial communication.

Used pins: Ch1 On/Off (Pin 6, Pin 22), Fault Relay (Pin 12 or 13, Pin 31), Ch1 Set Point Relay (Pin 17 or 19, Pin 18), Analog 1 (Pin 1, Pin 3).

-  ⇤ ← Revision 2 as of 2012-08-10 22:15:42 → 
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+   ← Revision 3 as of 2012-08-10 22:29:07 → ⇥
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-Manual
+[[attachment:4UHV_Ion_Pump_Controller_manual.pdf|Manual]]  p64 - p71
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+We will use the J1-REMOTE I/O connector. We will not use the serial communication.
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+Used pins: Ch1 On/Off (Pin 6, Pin 22), Fault Relay (Pin 12 or 13, Pin 31), Ch1 Set Point Relay (Pin 17 or 19, Pin 18), Analog 1 (Pin 1, Pin 3).
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-Convectron
+== Convectron ==