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Philips Optimus Manual

Philips Optimus Manual

Converter test kit for optimus 50/65/80 generators release 3.x with converters 4512 104 7231x
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Philips Medical Systems
Converter test kit OPTIMUS
for OPTIMUS 50/65/80 generators
release 3.x with converters 4512 104 7231x
4512 104 91681
Level 1 Documentation
This document and the information contained in it is strictly reserved for current Philips Medical Systems ("Philips") personnel, Philips licensed
representatives and Philips customers who have purchased a valid service agreement for use by the customer's designated in-house service
employee on equipment located at the customer's designated site. Use of this document by unauthorized persons is strictly prohibited. This
document must be returned to Philips when the user is no longer licensed and in any event upon Philips' first written request.
Printed in Hamburg
Federal Republic of Germany
© 2008 Koninklijke Philips Electronics N.V.
ALL RIGHTS RESERVED
Manual Order No. 4512 984 22723 Vers. 00

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Summary of Contents for Philips Optimus

  • Page 1 Use of this document by unauthorized persons is strictly prohibited. This document must be returned to Philips when the user is no longer licensed and in any event upon Philips' first written request.
  • Page 2 Use of this document by unauthorized persons is strictly prohibited. Report violation of these requirements to the Philips Legal Department. This docu‐ ment must be returned to Philips when the user is no longer licensed and in any event upon Philips’ first written request.
  • Page 3 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x SERVICE MANUAL - Unit Author: Th. Frenschek Converter test kit OPTIMUS for OPTIMUS 50/65/80 gener‐ ators release 3.x with converters 4512 104 7231x Type no: 4512 104 91681 Manual Order No.

  • Page 4: Table Of Contents

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x CONVERTER TEST KIT OPTIMUS Contents Introduction ..........................6 Scope of delivery ..........................6 Tools ..............................6 Generator condition after failure event .................. 7 Special case ............................7 All other cases ............................
  • Page 5 Measuring of the resonance frequency ....................33 12.2 Measurement of kV behavior with an adapted tube ................34 12.3 Measuring of kV behavior with a non-adapted tube (Optimus 65/80) ..........35 Reconditioning of the tube(s) ....................37 Final system test ........................40 Appendix ..........................41 15.1...

  • Page 6: Introduction

    3.x with converters 4512 104 7231x INTRODUCTION With this document it should be possible to determine which part of kV units of an Optimus generator is still operational and which part is defective and has to be replaced.

  • Page 7: Generator Condition After Failure Event

    The generator has to be kept in this condition to discover the cause of the problem. A non-qualified person (e.g. hospital technician not familiar with Optimus) should not be asked to just turn the fuses back on to prevent further damage.

  • Page 8: Check Of Generator Mains Supply Parts

    Problem might be caused by any of the: – internal generator units (Optimus RAD + R/F) – external units (Optimus RAD only) connected to breaker ENF2 :T1 :T2 :T3. Solutions for such a case are not part of this document.

  • Page 9: Enf1 Tripped, Possibly In Combination With Mains Fuses

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x 3.1.2 ENF1 tripped, possibly in combination with mains fuses Problem most likely caused by kV unit malfunction (kV-control, kV-power, converter(s), HV transformer) or external parts e.g.
  • Page 10 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x ▪ Record the conditions of the breakers in the checklist (last pages). ▪ Check for contacts that are welded at breakers and contactors. If contacts are found welded, replace breaker(s) and/or contactor(s).

  • Page 11: Converter Checks (Eq Frontal And E2Q Rear)

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x CONVERTER CHECKS (EQ FRONTAL AND E2Q REAR) ISUAL CONVERTER CHECK ▪ Check the converter visually. The entire converter chassis must be replaced if cracks are visible at the white IGBT body (looking through the converter cage grid) or if the kV-power PCB Q100 is bent towards the cover plate.

  • Page 12: Overvoltage Diode Check

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x MINUS PLUS Ω ➜ PLUS MINUS Ω ➜ 21.5 - 22kΩ ∞ 16.5kΩ ±10% 300mV ±10% E2,3,4 C2,3,4 E2,3,4 C2,3,4 0Ω < 200mV 0Ω...

  • Page 13: Power Cable Harness Check

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x 4.2.5 Power cable harness check ▪ Check internal converter power cable connections at resonance capacitors C3:2 and C13:2. If the connectors look like (2) no additional action is necessary.

  • Page 14: Check Of The High-Voltage Transformer

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x CHECK OF THE HIGH-VOLTAGE TRANSFORMER ▪ Remove PCB EZ130 kV-control. ▪ Insert an extender PCB at EZ130 X1 (or use the backpanel connections, which is less convenient).
  • Page 15 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x fective. When (3) shows an asymmetric amplitude the HV tank must be replaced. ▪ Check against the following chart: (Fig. 4) Conv test Optimus CSIP Level 1 (08.0)

  • Page 16: Visual Check Of The X-Ray Tube

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x VISUAL CHECK OF THE X-RAY TUBE ▪ If possible remove the collimator and the X-ray tube window assembly. Is there any visible damage? ▪ A cracked tube or the loss of its vacuum could be a reason to destroy the converter.

  • Page 17: Interim Results

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x INTERIM RESULTS At this point – generator parts and units – tube(s) – HV cables have been checked. Something might have been exchanged or all tests came to an OK-result.

  • Page 18: Tube Check With Rotor Control Part 1

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x TUBE CHECK WITH ROTOR CONTROL PART 1 In case the tube was rotating during tripping of mains breakers the CPU remembers that the brake process has not been carried out (high-speed rotor control only).

  • Page 19: Kv-Driver Test

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x KV-DRIVER TEST CAUTION Before this driver test can be carried out the kV power unit(s) must be disconnected from the mains supply (leads of unit(s) EQ/E2Q to ENK1 :1, :3, :5)
  • Page 20 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Test of control signal(s) and driver(s) behavior: The range of the control signal is + 3.7 V ± 0.2 V for the ON condition and + 1.2 V ± 0.2 V for the OFF condition at the specified measuring point against generator ground (see schematic diagrams and PCB layout).
  • Page 21 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x The wave form of the oscilloscope screen shot de‐ pends on the resolution of the oscilloscope. Test 1 : input optical coupler X6 ... X9 Gate X100 ...
  • Page 22 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Input B -2.0 -4.0 -6.0 -8.0 -10.0 -12.0 -40 µs 20 µs/Div Signals from top to down, voltage scale for Ch1 only, active state high: Ch 4 = Y100 x8 gate IGBT V3 Average high level = +3.6V...
  • Page 23 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x ▪ Lead the primary power cable(s) of QC13:1 (front and rear) through the current transformer(s) at each converter and reestablish the connection to the capacitor.

  • Page 24: Tube Check With Rotor Control Part 2

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x TUBE CHECK WITH ROTOR CONTROL PART 2 ▪ Switch ON the generator. The system and the generator should be in ready condition. Check of the tube vacuum: ▪...

  • Page 25: Tube And High-Voltage Cable Test With High Voltage

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x TUBE AND HIGH-VOLTAGE CABLE TEST WITH HIGH VOLTAGE Even if – the battery test to check a short at the high-voltage cables (chapter 5), –...
  • Page 26 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x ▪ Start with 40kV, 50mA, 10ms (= 0.5mAs). If the tube is not adapted set 40kV 0.5mAs. ▪ Establish the second side of the test cable with resistor at backpanel plug EZX18 (Optimus 50) EZX19 (OM 65/80) (backpanel layout page Z2-5.2).
  • Page 27 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Actions + ►analysis Exposures to be switched with Measuring results 50mA 10ms or 0.5mAs Anode Cathode HV cable Tube EZ130 X4 EZ130 X5 case 1...
  • Page 28 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x (Fig. 10) (Fig. 9) ▲adapted tube, tube and cable OK▲ ▲non-adapted tube, tube and cable OK▲ (Fig. 11) (Fig. 12) ▲adapted tube, anode cable short-circuit▲...

  • Page 29: Measuring Of Primary Currents

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x MEASURING OF PRIMARY CURRENTS ▪ Switch OFF the generator and wait 1 minute for the converter DC to be discharged. ▪ Measure with the oscilloscope:...
  • Page 30 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Optimus 50 tube adapted: (Fig. 13) (Fig. 14) The primary current values must be within the range of the lower chart ±10%. CSIP Level 1 (08.0) Conv test Optimus ©...
  • Page 31 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Optimus 50 tube not adapted: (Fig. 15) (Fig. 16) The primary current values must be within the range of the lower chart of page 26 ±10%.
  • Page 32 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Optimus 65/80 tube adapted: (Fig. 17) (Fig. 18) If waveforms are not symmetrical replace HV transformer. The primary current values must be within the range of the lower chart ±10%.

  • Page 33: Measuring Of The Resonance Frequency

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Optimus 65/80 tube not adapted: (Fig. 19) (Fig. 20) If waveforms are not symmetrical replace HV transformer. The primary current values must be within the range of the lower chart of page 28 ±10%.

  • Page 34: Measurement Of Kv Behavior With An Adapted Tube

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x – the individual primary coils (anode or cathode) at a 65/80kW driven by 1 converter each must always be the same. With a tolerance of 5% for the primary coil inductance and for the resonance capacitors in the converters the resonance frequency must be within a range of 17.160kHz (1/f = 58.3µs) and 18.970kHz (1/f = 52.7µs).

  • Page 35: Measuring Of Kv Behavior With A Non-Adapted Tube (Optimus 65/80)

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x EZ130 X4 AV_AN actual value high voltage anode ground EZ130 X6. Settings see chart. The second probe remains at the primary current anode side (frontal converter 65/80kW or the frontal converter of Optimus 50).
  • Page 36 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x (Fig. 23) (Fig. 24) CSIP Level 1 (08.0) Conv test Optimus © 2008 Koninklijke Philips Electronics N.V. ALL RIGHTS RESERVED...

  • Page 37: Reconditioning Of The Tube(S)

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x RECONDITIONING OF THE TUBE(S) ▪ Place one oscilloscope probe at EZ130 X3 AV_HT actual value high voltage (total kV, 20kV/V) and ground EZ130 X6.
  • Page 38 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Tube adapted Tube not adapted Switch the number of exposures given for every data set of the table. exposures < 1 > < 1 >...
  • Page 39 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Tube adapted Tube not adapted Switch the number of exposures given for every data set of the table. exposures 10 seconds pause 10 seconds pause max mA <...

  • Page 40: Final System Test

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x FINAL SYSTEM TEST ▪ If the generator works error-free at this stage switch it OFF and cut it from mains. WARNING Wait at least 1 minute until the converter DC is discharged.

  • Page 41: Appendix

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x APPENDIX 15.1 LIGNMENT OF FUNCTION UNIT K 15.1.1 General information The actual value of the set kV must be attained at least after 2ms. At kV rise phase there must be neither kV break-in nor a kV overshoot.

  • Page 42: 15.1.1.1 Connecting And Setting The Scope

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x During alignment this factor duty cycle must be entered via AGenT. The influence of this factor as a correction value for the Z-data table is monitored as the...

  • Page 43: 15.1.1.2 Deactivating The Kv Controller

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x 15.1.1.2 Deactivating the kV controller ▪ Connect EZ130 X23 GAIN_IN and X6 GNDA with a short link (use a short wire). CAUTION This alignment requires exposures with high kV.
  • Page 44 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x ▪ If the UCOMP value does not match the requirements type in another factor duty cycle value, transmit the factor by clicking on “Apply” with the left mouse button and push the active RGDV button to get the new value validated.

  • Page 45: Tube Conditioning

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x kV actual value + UCOMP kV actual value mean value of UCOMP Optimus 80kW with 141kV, UCOMP = +1V AV HT with overshoot (Fig. 30) b) 125kV setting (50/65/80kW) ▪...

  • Page 46: Preconditions / Program Settings

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x The generator must be in the READY state, i.e. the green ring at the desk must be illuminated. 15.2.2 Preconditions / Program settings ▪ Switch OFF the generator.

  • Page 47: Procedure

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x 15.2.3 Procedure ▪ Select large focus only. NOTE The generator must be in the READY state. ▪ Run reconditioning procedure for an adapted tube. Refer to the following table, left column “Tube adapted”.
  • Page 48 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Exposure parameters for conditioning Tube adapted # Exposures Tube not adapted < 1 > < 1 > < 1 > 10 seconds pause 10 seconds pause max.
  • Page 49 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Exposure parameters for conditioning Tube adapted # Exposures Tube not adapted < 1 > < 1 > < 1 > 10 seconds pause 10 seconds pause max.
  • Page 50 Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x Exposure sequence kV step 1 80kV kV step n Exposure kV step n+1 with arcing kV step n+2 3 exposures with same parameters. Wait 10s...

  • Page 51: List Of Checked Parts Of Generator S/N

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x 15.3 IST OF CHECKED PARTS OF GENERATOR Please add this list to returned parts. ENK2 phase 1 1 - 2 ❒ open ❒ welded phase 2 3 - 4 ❒...

  • Page 52: List Of Checked Parts Of Generator S/N

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x 15.4 IST OF CHECKED PARTS OF GENERATOR Please add this list to returned parts. ENK2 phase 1 1 - 2 ❒ open ❒ welded phase 2 3 - 4 ❒...

  • Page 53: List Of Checked Parts Of Generator S/N

    Converter test kit OPTIMUS for OPTIMUS 50/65/80 gen‐ erators release 3.x with converters 4512 104 7231x 15.5 IST OF CHECKED PARTS OF GENERATOR Please add this list to returned parts. ENK2 phase 1 1 - 2 ❒ open ❒ welded phase 2 3 - 4 ❒...

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