Contents

MS/PRL main screen

Location: lclshome (SC) --> RF/Global --> Phase Reference Line

RF Reference (MO Locker)

Location: lclshome (SC) --> RF/Global --> Phase Reference Line

Description: Frequency counter and MO locker matlab script

  • Freq locker Enable/Disable button should be set to "Enable"
  • MO freq setpoint should be 162.5 MHz
  • MO freq error should be < ~1 Hz
  • Matlab script LED should be green
  • All PVs should be in NO_ALARM state
  • For help, refer to Troubleshooting page

PRL Loops 

Location: lclshome (SC) --> RF/Global --> Phase Reference Line  --> L0-L1 PRL Loop...(etc.)

Description: Phase Reference Line feedback loops

  • ADC Ampl = ON, Error = OFF, Lock = ON
  • LED PV should read "101: Locked"
  • Tx/Rx frame rates should be ~5000'
  • Loop Lock Disable should be "Enabled"
  • All PVs should be in NO_ALARM state
  • For help, refer to Troubleshooting page

PRL Amps/Attenuators 

Location: lclshome (SC) --> RF/Global --> Phase Reference Line  --> L0-L1 VCO Amp...(etc.)

Description: Phase Reference Line power amplifiers and digital attenuators

  • Fault status and status message should be "OK"
  • Amp alarms should read "OK"
  • Setpt. RBV should read "At target"
  • Amp Reset should be in "Standby"
  • For help, refer to Troubleshooting page

Amp/Attenuator Expert Screen

Location: lclshome (SC) --> RF/Global --> Phase Reference Line  --> L0-L1 VCO Amp...(etc.) --> Expert...

Description: Power amplifier and digital attenuator expert controls

Water/Temp/Misc

Location: lclshome (SC) --> RF/Global --> Phase Reference Line

Description: Beckhoff low-level displays, rack water & temperature, PDUs for amp AC power etc.

  • Occassionally PDU alarm PVs will be INVALID (purple) because of a hardware problem.  This should not affect PRL functionality.
  • All other PVs should be in NO_ALARM state



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