Section 5

page n.1

Section 5

1 GENERATOR DESCRIPTION 3

1.0 Rack overview . . . . . . . .

1.1 M.C.U. Master Control Unit .

1.2 Line and Safety Supervisor .

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1.3 Filament Inverter Driver .

1.4 Normal Speed Starter . .

1.5 General Terminal Board .

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1.6 Inverter and Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.7a Main switches for NS .

1.7b Main switches for HS 1.8 H.V. Transformer.

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Rev L15 SERIES R306.3x

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page n.2

SERIES R306.3x Rev L15

1 GENERATOR DESCRIPTION page n.3

1 GENERATOR DESCRIPTION

1.0 Rack overview

Front, back and lateral view

Inverter

H.V. transformer

Safety Supervisor

Main switches

Filament Inverter Driver

M.C.U.

N.S. Starter

G.T.B.

Line Filter

Rev L15 SERIES R306.3x

page n.4 1 GENERATOR DESCRIPTION

1.1 M.C.U. Master Control Unit

This is the main computer. Here are coming all signals that make the generator working; from the different PCB signals are coming here via 20 pins flat cables, control consolle is lied by a DB9 connector, the PC is

connectable by a DB9 cable. On this board we have a Flash memory with the software inside and a

backup-Ram that stores all configuration, tube calibration and anatomic programs.

SERIES R306.3x Rev L15

SIGNAL DESCRIPTION

IRP (digital input) Potter Reply (from G.T.B.)

IPR (digital input) Preparation Radiography (from G.T.B.)

ISR (digital input) Start Radiography (from G.T.B.)

IFS (digital input) Start Fluoroscopy (from G.T.B.)

IST-1 (digital input) Safety Tube 1 (from G.T.B.)

ITS (digital input) Tomo Slow (from G.T.B.)

ITF (digital input) Tomo Fast (from G.T.B.)

ITA (digital input) Tomo 8 Degree (from G.T.B.)

ITB (digital input) Tomo 20 Degree (from G.T.B.)

ITC (digital input) Tomo 30 Degree (from G.T.B.)

ITD (digital input) Tomo 40 Degree (from G.T.B.)

IPE (digital input) X-Ray Stop (from G.T.B.)

1 GENERATOR DESCRIPTION page n.5

Rev L15 SERIES R306.3x

SIGNAL DESCRIPTION

INS (digital input) Safety Rotation Normal Speed (from Starter N.S.)

IHS (digital input) Safety Rotation High Speed (from Starter N.S.-H.S.)

IRM (digital input) High Voltage Present at 75% of kV (from M.C.U.)

IPW (digital input) DC Bar Charged (from M.C.U.)

IUB (digital input) Unbalanced Power Bridge Inverter (from M.C.U.)

iec- (analog input) Negative Analog Continuous Fluoro (from G.T.B.)

iec+ (analog input) Positive Analog Continuous Fluoro (from G.T.B.)

icl (analog input) Fluoro Current 5V=10mA (from M.C.U.)

icm (analog input) Radiography Medium Current 5V=150mA (from M.C.U.)

ich (analog input) Radiography High Current 5V=1500mA (from M.C.U.)

irsf (analog input) Small Focus Current Real Value 5V=10A (from Filament Inv. Drv.)

irlf (analog input) Larege Focus Real Value 5V=10A (from Filament Inv. Drv.)

OCC (digital output) 80% of Tube Maximum kHUT

OBS-1 (digital output) Bucky Start Working Station 1

OBS-2 (digital output) Bucky Start Working Station 2

OBS-3 (digital output) Bucky Start Working Station 3

OHS (digital output) High Speed Rotation (to Starter N.S.-H.S.)

ORP (digital output) Radiography Preparation

ORT (digital output) Radiography Time During Exposure

OFT (digital output) Fluoroscopy Time During Exposure

OXT (digital output) Pulsed Fluoroscopy Time During Exposure

OHT (digital output) Start High Voltage Active

OREI (digital output) Reset Allarm

OAB (digital output) Turn Off Generator from M.C.U.

OBF (digital output) Filament Current Safety

COM (digital output) Commun ON-OFF Generator

OFF (digital output) OFF Generator

ON (digital output) On Generator

ORR (digital output) Start Rotation Normal Speed

OFR (digital output) Anode Fluoroscopy Rotation

OAT (digital output) Anode Rotation Time

olf (analog output) Reference Large Focus Current 5V=10A

osf (analog output) Reference Small Focus Current 5V=10A

okv (analog output) Reference High Voltage 5V=200kV

page n.6 1 GENERATOR DESCRIPTION

1.2 Line and Safety Supervisor

The uController on this board checks all signal considered usefull for generator working. Here comes the

+24Vdc used to supply the different generator board.

SERIES R306.3x Rev L15

SIGNAL DESCRIPTION

ORS Radiography Time

OFT Fluoroscopy Time During Exposure

OAB Turn OFF Generator from M.C.U.

OBF Filament Current Safety Through M.C.U.

COM ON / OFF Common from Control Console Through M.C.U.

ON ON Key from Control Console Through M.C.U.

OFF OFF Key from Control Console Through M.C.U.

1 GENERATOR DESCRIPTION page n.7

1.3 Filament Inverter Driver

This is the filament supplier, could lit filament till 8 Amps.

The real filament heating value is measured by the MCU uProcessor, and shown on the PC if NAVIGATOR is connected.

Rev L15 SERIES R306.3x

SIGNAL DESCRIPTION

orsf Reference Small Focus Current 5V=10A

orlf Reference Large Focus Current 5V=10A

+irsf Positive Small Focus Current Real Value 5V=10A

+irlf Positive Larege Focus Real Value 5V=10A

IST-1 Safety Tube 1

OBF Filament Current Safety

OSF Filament Shut Down

OLF Filament selection

page n.8 1 GENERATOR DESCRIPTION

1.4 Normal Speed Starter

This is the normal speed starter so, 3000 RPM. By wire jumper you can set the capacitance value for different kind of tubes.

SERIES R306.3x Rev L15

SIGNAL DESCRIPTION

264Vac Power Supply from Service Transformer

0Vac Power Supply from Service Transformer

IND Inductive

CAP Capacitive

COM Common

INS Safety Rotation Normal Speed

OAT Anode Rotation Time

1 GENERATOR DESCRIPTION page n.9

1.5 General Terminal Board

This board job is the interface of the generator with the external devices, such as potter or accessories.

Rev L15 SERIES R306.3x

SIGNAL DESCRIPTION

101-102-103 +24Vdc

104-105-106-112-119-117 115-128-126-124-122-130

0Vdc

107 iec+

108 iec-

113 ITA Tomo 8 Degree

111 IS2

110 IS3

109 IST-1Safety Tube 1

120 IPE x-ray safety

118 IFS Start Fluoroscopy

116 ITS Tomo Slow

114 Preparation Radiography

pagina n.10 1 GENERATOR DESCRIPTION

SERIES R306.3x Rev L15

127 Start Radiography

125 Potter Reply

123 Door Safety

121 ITF Tomo Fast

132 ITB Tomo 20 Degree

131 ITC Tomo 30 Degree

129 ITD Tomo 40 Degree

135 OCC 80% of Tube Maximum kHUT /OS1

137 OXT pulse fluoro exp. Time / OS3

138 OFT Fluoroscopy Exposure Time / OS2

139 ORT Radiography Exposure Time

201-202 204-205

JP1 selection OXT pulse fluoro exp. Time ORP Radiography Preparation

206-207 209-210

JP2 Selection OBS-1 Bucky Start Working Station 1 OBS-2 Bucky Start Working Station 2 OBS-3 Bucky Start Working Station 3

211-212 214-215

JP3 Selection OBS-1 Bucky Start Working Station 1 OBS-2 Bucky Start Working Station 2 OBS-3 Bucky Start Working Station 3

216-217 219-220

JP4 Selection OBS-1 Bucky Start Working Station 1 OBS-2 Bucky Start Working Station 2 OBS-3 Bucky Start Working Station 3

221-222 224-225

JP18 Selection ORM 75% high voltage value OXT pulse fluoro exp. Time ORT Radiography Exposure Time

226-229 227-230

IRP Potter Reply

1 GENERATOR DESCRIPTION page n.11

1.6 Inverter and Driver

That’s the power inverter

Rev L15 SERIES R306.3x

SIGNAL DESCRIPTION

Vrail+ / Vrail- DC-rail charged

cbr+ H.V. Transformer primary current

cbr- H.V. Transformer primary current

PWS Inverter short circuit

IUB / IUX Inverter unballanced bridge

OREI Reset inverter

GF 1-4 Gate triggering signal IGBT 1-3

GF 2-3 Gate triggering signal IGBT 2-4

page n.12 1 GENERATOR DESCRIPTION

1.7a Main switches for NS

Main switches

SERIES R306.3x Rev L15

COMPONENT DESCRIPTION

AC - DC Power Supply 24Vdc 500W

Si1 Magneto-thermal switch 3P C 63 A

Si2 Magneto-thermal switch 3P C 6 A

Si3 Magneto-thermal switch 2P C 3 A

LA Contactor line

COMPONENT

AC - DC

Si1

Si2

Si3

LA Contactor line

Magneto-thermal switch 2P C 3 A

Magneto-thermal switch 3P C 6 A

Magneto-thermal switch 3P C 63 A

Power Supply DRT-240-24 IN 400-500 OUT 24V 10A

page n.13 1 GENERATOR DESCRIPTION

1.7b Main switches for HS

Main switches

SERIES R306.3x Rev L15

COMPONENT DESCRIPTION

AC - DC Power Supply 24Vdc 500W

Si1 Magneto-thermal switch 3P C 63 A

Si2 Magneto-thermal switch 3P C 6 A

LA Contactor line

1 GENERATOR DESCRIPTION page n.14

1.8 H.V. Transformer

H.V. Transformer

Rev L15 SERIES R306.3x

SIGNAL DESCRIPTION

1 Main inverter supply

2 Main inverter supply

lfa Filament Supply 1 Large

+24Vdc Common Fliament Supply

lfb Filament 2 Large

sfa Filament Supply 1 Small

+24Vdc Common Filament Supply

sfb Filament Supply 2 Small

STP H.V. Transformer connected

kV+ kV+ Real to MCU

kV- kV- Real to MCU

ihv+ High Voltage Current + Real to MCU

ihv- High Voltage Current - Real to MCU