SPEAR3 Power Supply Controls 1

SPEAR3 Power Supply Controls

Clemens Wermelskirchen

SPEAR3 Power Supply Controls 2

Overview

Unipolar power supplies

Bitbus

Bipolar power supplies

MCOR30

Special hardware

RF system

Power Supply Diagnostic Panels

SPEAR3 Power Supply Controls 3

Unipolar Power SuppliesLarge, free standing supplies

Medium and small, rack mounted supplies

Each power supply has individual Bitbus controller integrated into power supply (or rack)

Dipole power supply has two controllers, one for the bulk supply and one for the chopper

Precision ADC digitizes two readbacks per second, 7 readbackstotal

SPEAR3 Power Supply Controls 4

Bitbus

VM

E C

PU

Bitb

usm

aste

r

Bitb

usm

aste

r

Bitb

usm

aste

r

Bitb

usm

aste

r 4 Bitbus lines

Serial lines, terminated

Similar number of PS per line

DB-9 connector on masters

DB-15 connector on controllers

Command execution takes about 10 msec

B118-29-17

118-VME1

SPEAR3 Power Supply Controls 5

Bitbus Power Supply ListLink 005G-QF105G-QF206G-QF106G-QF207G-QF107G-QF208G-QF108G-QF211G-QF111G-QF212G-QF112G-QF213G-QF113G-QF214G-QF114G-QF215G-QF115G-QF216G-QF116G-QF217G-QF117G-QF2

Link 1118-TSP1118-TSP2118-TSP3118-TSP4BTS-Q8BTS-Q9BTS-B7HBTS-B8VBTS-B9VMS1-QFXMS1-QFYMS1-QFZMS1-QDXMS1-QDYMS1-QDZMS1-SDMS1-SDMMS1-SFMS1-SFM

Link 205G-QD105G-QD206G-QD106G-QD207G-QD107G-QD208G-QD108G-QD211G-QD111G-QD212G-QD112G-QD213G-QD113G-QD214G-QD114G-QD215G-QD115G-QD216G-QD116G-QD217G-QD117G-QD2

Link 3MS1-BDMS1-BDBLKMS1-QFCMS2-QFCMS1-QFMS1-QD

SPEAR3 Power Supply Controls 6

Bipolar Power Supplies (MCOR30)

8 power supplies per crateCorrectors (14 crates)ID trims (2 crates)Magnet trims (2 crates)

Individual IOC in each crateEach IOC has “regular” Ethernetand serial console connectionProvision for “fast feedback” Ethernet on corrector cratesNetwork distribution in rack 46 (all power supplies driven from two Ethernet fibers)

MCOR30 CrateM

CO

R30

m

odul

e

MC

OR

30

mod

ule

MC

OR

30

mod

ule

MC

OR

30

mod

ule

MC

OR

30

mod

ule

MC

OR

30

mod

ule

MC

OR

30

mod

ule

MC

OR

30

mod

ule

VM

E C

PU

m

odul

e

CandiBoard

(ADC, DAC, MUX)

CandiBoard

(ADC, DAC, MUX)

CandiBoard

(ADC, DAC, MUX)

CandiBoard

(ADC, DAC, MUX)

CandiBoard

(ADC, DAC, MUX)

CandiBoard

(ADC, DAC, MUX)

CandiBoard

(ADC, DAC, MUX)

CandiBoard

(ADC, DAC, MUX)Fr

anke

nboa

rd

MCOR Backplane (digital communication for SPEAR)

IOC

switc

hing

su

pply

switc

hing

su

pply

switc

hing

su

pply

switc

hing

su

pply

switc

hing

su

pply

switc

hing

su

pply

switc

hing

su

pply

switc

hing

su

pply

SPEAR3 Power Supply Controls 7

SPEAR3 Power Supply Controls 8

MCOR30 Crate

Crates are Eurocard form-factor (not VME crates)

Crates and backplanes are identical to PEP MCOR crates

SPEAR has 8 30 A modules (PEP has 16 12 A modules)

Bulk supplies can not drive a total of 240 A, be aware(!).

CPU is a regular VME CPUadaptation done by “Frankenboard” sitting between CPU and backplane

Digital (serial) communication between Frankenboard and Candi modules, update rate is 4 kHz

CPU runs EPICS IOC, which gives direct access to power supplies from Ethernet

Second Ethernet interface will be used for 4 kHz feedback system updates

SPEAR3 Power Supply Controls 9

MCOR Racks

SPEAR3 Power Supply Controls 10

Special Hardware

• 1 MCOR30 supply feeds QMS switchyard (6 chassis), which selects 1 out of 94 quadrupole trims

• 4 Bitbus-controlled TSP supplies feed 5 TSP switchyards, which select 1 out of 16 (32) TSPs per power supply

• Kicker power supplies are integrated into kicker controls (Allen-Bradley)

SPEAR3 Power Supply Controls 11

RF System

The RF power supply is controlled through the LLRF control system.

SPEAR3 Power Supply Controls 12

Power Supply Diagnostic Panels

SPEAR3 Power Supply Controls 13

Power Supply Diagnostic Panels

SPEAR3 Power Supply Controls 14

Power Supply Diagnostic Panels