Universal Voltronics BRC-15-1111R-STD-J37 Instruction Manual Download Page 7 | Manualshive

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Document: MAN00238A

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1. INTRODUCTION

This high voltage power supply incorporates the latest in high frequency, high power switching
technology. Each unit is neatly packaged in a single, rack-mountable chassis with approximate
dimensions of 10.5" high X 19" wide (maximum) X 21" deep (approximately 2 additional inches are
required behind the chassis for connections).

Operation of the power supply can be accomplished locally via the front panel controls and/or
remotely via the rear panel User Interface connector J4. Certain commands or signals are operative
in both modes. For example, the local HV OFF pushbutton switch is operative in both Local and
Remote modes. Refer to Section 5, "User Interface", for details.

The polarity of the output is adjustable, however each unit is shipped from the factory in negative
output mode. The output polarity can be altered by changing the position of the output polarity
plate.

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Summary of Contents for BRC-15-1111R-STD-J37

Page 1: ...R SUPPLY INSTRUCTION MANUAL Model BRC 15 1111R STD J37 Document MAN00238 Revision A UNIVERSAL VOLTRONICS CORP 57 COMMERCE DRIVE BROOKFIELD CONNECTICUT 06804 3405 USA TEL 203 740 8555 FAX 203 740 9555 www voltronics com ...

Page 2: ...This page left blank intentionally ...

Page 3: ...AN00238A BRC 15 1111R STD J37 doc Doc MAN00238 Rev A Prepared by S Savulak Date 2003 04 28 Approved by U Uhmeyer Title High Voltage Power Supply Instruction Manual BRC 15 1111R STD J37 Date 2003 04 30 Revision History Rev Description Date App d A Initial Release of document for use 2003 04 30 U Uhmeyer ...

Page 4: ... STD J37 doc Contents 1 Introduction 2 Warnings 3 Unpacking 4 Installation 5 User Interface 6 Theory of Operation 7 High Voltage ON 8 Specification 9 Circuit Board Adjustments 10 Faults Troubleshooting 11 Drawing List 12 Replacement Bills of Material 13 Factory Test Procedure ATP ...

Page 5: ... not limited to the costs of purchased materials and a reasonable allowance for profit O Or rd de er rs s i in n p pr ro oc ce es ss s m ma ay y n no ot t b be e c ch ha an ng ge ed d e ex xc ce ep pt t w wi it th h S Se el ll le er r s s w wr ri it tt te en n c co on ns se en nt t a an nd d u up po on n a ag gr re ee em me en nt t b by y t th he e p pa ar rt ti ie es s a as s t to o a an n a ap p...

Page 6: ... he er re ei in n B Bu uy ye er r a ag gr re ee es s n no ot t t to o s se el ll l t tr ra an ns sf fe er r l li ic ce en ns se e l lo oa an n o or r o ot th he er rw wi is se e m ma ak ke e a av va ai il la ab bl le e t to o t th hi ir rd d p pa ar rt ti ie es s t th he e s so of ft tw wa ar re e p pr ro od du uc ct ts s a an nd d r re el la at te ed d d do oc cu um me en nt ta at ti io on n p pr...

Page 7: ...equired behind the chassis for connections Operation of the power supply can be accomplished locally via the front panel controls and or remotely via the rear panel User Interface connector J4 Certain commands or signals are operative in both modes For example the local HV OFF pushbutton switch is operative in both Local and Remote modes Refer to Section 5 User Interface for details The polarity o...

Page 8: ... safety ground connections Assuming that high voltage is always ON is the best way to avoid hazard to personnel Always shut off the supply circuit breaker s and follow an appropriate grounding procedure to discharge the output before touching any exposed connections DO NOT rely on the power supply s instrumentation or controls to determine that the output is safely discharged The sensors are drive...

Page 9: ...unit needs to be returned Inspect the unit for dents or other damage which may have occurred during shipping In the unusual event that shipment damage has occurred contact the transportation company and the manufacturer immediately If additional materials have been enclosed in the shipping crate such as cables etc inspect them as well Put them aside and DO NOT proceed until this instruction manual...

Page 10: ...ding with the installation CAUTION Chassis supports must not block air passages located on the unit s side panels A fan located on the left side panel pulls air in through a heatsink located on the right side panel 1 Turn OFF the front panel circuit breaker 2 Connect the ground stud on the rear panel of the chassis to a suitable building or system ground and to the low end of the output load s Use...

Page 11: ...ry important to use 600V UL1015 insulated stranded wire of sufficient gauge 6 AWG or greater to handle the full load line current Strip about 0 4 inch 1 cm of insulation from the wires before inserting them into the terminal block Phase sequence is not critical on this three phase switching power supply 8 When all of the connections have been double checked apply AC power from the source circuit b...

Page 12: ...s high impedance input should be connected to a low impedance voltage source less than or equal to 1k ohms A typical input would be the analog output of a computer interface Zero volts applied here is equal to a zero ampere HV output and 10V is equal to a 1 111A HV output 0 to 10V 0 to 1 111A 4 Analog Voltage Monitor Output This low impedance output should be connected to a high impedance load A t...

Page 13: ...oltage ON Control Input Connect to a normally open NO set of isolated switch contacts Operation of these contacts should be momentary but an alternate action switch is acceptable 13 Remote HV ON Monitor Output This signal is 5VDC when HV is ON and is 0VDC when HV is OFF 14 Common Pin for High Voltage ON Control and Inhibit Command Input Connect to return for Remote HV ON Monitor and Inhibit Comman...

Page 14: ...ICATOR YELLOW CR135 SLOW DC OVERLOAD FAULT INDICATOR YELLOW CR133 ARC RATE COUNTER FAULT INDICATOR YELLOW CR131 RAIL FAULT INDICATOR YELLOW CR137 STEP START SEQUENCE FAULT INDICATOR YELLOW REAR PANEL J4 USER INTERFACE PIN 1 03 13 2002 LOCAL REMOTE SWITCH LOCAL REMOTE CR139 CR135 CR133 CR131 CR137 Figure 1 User Interface ...

Page 15: ...either the front panel potentiometers or voltage signals from an external source depending on whether Local or Remote mode is being used 6 1 Regulator 9120010 The regulator circuit receives the two reference voltages 0 10V as set by the remote references or by the front panel voltage and current pots R1 and R2 respectively See Figure 2 These reference voltages feed the KV error amplifier and mA er...

Page 16: ...S Figure 3 Power Inverter Simplified Diagram The inverter switches are IGBTs that are gated ON for an interval established by the pulse width modulator chip on the Regulator card At power turn on the raw capacitor bank is charged through rectifier CR12 and current limited by R42 and R43 When the initial charge period is complete relay K1 is energized connecting the rail capacitors to the low imped...

Page 17: ...indicating that there is high voltage on the output To turn the supply off press the HV OFF pushbutton This will disable high voltage and clear any faults The kV Adjust knob and the A Adjust knob must both be above zero to allow the power supply to produce any output voltage or current 3 digit panel meters for output voltage and current have been provided on the front panel They facilitate easy in...

Page 18: ... INDICATORS FRONT PANEL Power On Indicates AC power is active Fault Indicates a power supply fault is present Positive Output polarity is positive Negative Output polarity is negative Kilovolts Indicates when unit is in voltage regulation mode Amperes Indicates when unit is in current regulation mode 8 4 LCD INDICATORS Output Voltage Meter 3 5 Digits 15 0kV Output Current Meter 3 5 Digits 1 111A 8...

Page 19: ... Digital Signal Outputs HV On TTL High 8 7 MECHANICAL Panel 19 wide x 7 high max Chassis 21 deep not including approx 2 for connections Weight 100 lbs including packaging HV Output Fixed rear panel Control Interface Phoenix MSTB 1 5 17 ST 508 or equivalent connector rear panel J4 Power Input 3 position terminal strip rear panel Ground Connection 20 stud rear panel 8 8 FUSING Regulator 9120010 F1 B...

Page 20: ...tance Test Procedure called out in Section 13 Potentiometer Function Descriptions Front Panel PWA 9120021 R6 Front panel voltmeter calibration R7 Front panel ammeter calibration R9 Shutdown timer one shot period sets length of time unit will stay in the shutdown state after an arc or similar event Regulator PWA 9120010 R1 High voltage feedback divider AC compensation adjusts AC gain of feedback di...

Page 21: ...t circuit protects against more catastrophic events especially faults occurring within the inverter itself It is a latched fault requiring a reapplication of HV ON to resume HV operation DO NOT retry HV ON more than once or twice after a rail fault occurs since this indicates damage has occurred within the inverter and further attempts to turn on HV may worsen the damage R137 Slow OC Adjust sets t...

Page 22: ...Document MAN00238A Page 22 of 28 R Documents MAN Manuals MAN00238A BRC 15 1111R STD J37 doc REMOTE INTERFACE HV REGULATOR PWA Figure 4 Regulator Adjustment Potentiometers ...

Page 23: ...Document MAN00238A Page 23 of 28 R Documents MAN Manuals MAN00238A BRC 15 1111R STD J37 doc Figure 5 Front Panel Adjustment Potentiometers ...

Page 24: ...ge feedback Like the fast OL fault this type of fault causes a rollback which will not place the supply in a latched fault condition It merely temporarily interrupts high voltage so the condition can clear The output then recovers to the set point with little indication The purpose for this type of recovery is that permanent shutdowns or faults can become a nuisance when arcing is a common occurre...

Page 25: ...the key ingredients to arc recovery performance and is critical in many applications The one shot period must be long enough to allow an output arc to extinguish before the power supply begins to make output again It should also allow sufficient time for the related electronics to be reset or return to their nominal state On the other hand it must not be too long as to cause operational difficulti...

Page 26: ... the front panel shows no lights check the following 1 Check for power on the input power line 208VAC 3 phase 2 Check the fuses on Regulator board 9120010 see section 8 8 for fuse details 2 0 It is normal for the front panel Fault LED to blink momentarily when the circuit breaker is turned on The Fault LED should immediately go out however if the light does not extinguish check if any fault LEDs a...

Page 27: ...p cover interlock switch open b Interlock loop on J4 not shorted 3 Over voltage Fault a Large inductive element connected to output b Misconnection of output to external high voltage source 4 Overload Fault a Effective load resistance too low extreme dynamic load b Large capacitive load connected to output c HV output misconnected to ground 5 dV dt Fault Arc Fault a Load arcing b Output connection...

Page 28: ...6 1895 39P Front Panel PWA Schematic D9120021 013 HV Regulator PWA Schematic D9120010 011 High Voltage Module PWA Schematic See System Schematic D 6 7 1557 Output Low end PWA Schematic B 6 1891 47AT 12 REPLACEMENT BILLS OF MATERIAL Replacement bills of material are available on request 13 FACTORY TEST PROCEDURE ATP The Acceptance Test Procedure ATP00255 is available on request ...

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