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Servo

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Service Manual

E382 E407E 061 01 01 02

Summary of Contents for Servo i

Page 1: ...Servo Service Manual E382 E407E 061 01 01 02 ...

Page 2: ...Siemens Elema AB Important Servo E382 E407E 061 01 01 02 1 2 Notes ...

Page 3: ... Elema AB Servo Important 1 3 Contents 1 Important 2 Introduction 3 Description of functions 4 Disassembling and assembling 5 Service procedures 6 Troubleshooting 7 Preventive maintenance 8 Index 9 Diagrams 1 2 3 4 5 6 7 8 Contents 9 ...

Page 4: ...in cm H2 O Pa 1 hPa 1 mbar 1 mbar 1 hPa 1 kPa 10 mbar 1 mbar 0 1 kPa 1 kPa 0 01 bar 1 bar 100 kPa 1 kPa N 10 cm H2 O 1 cm H2 O N 0 1 kPa 1 kPa N 0 01 at 1 at N 100 kPa 1 kPa N 0 01 kgf cm2 1 kgf cm2 N 100 kPa 1 kPa N 0 01 kp cm2 1 kp cm2 N 100 kPa 1 kPa N 0 145 psi 1 psi N 6 9 kPa 1 Hazard notices Before disassembling or assembling the Servo System make sure that the Gas supply is disconnected Mai...

Page 5: ...e Servo Ventilator System InstallationInstructions Functional check After any installation maintenance or service intervention in the Servo System perform a Pre use check according to instructions in the Servo Ventilator System User s manual Service The Servo System must be serviced at regular intervals by personnel trained and authorized by Siemens Any maintenance or service must be noted in a lo...

Page 6: ... PC 1785 Exp channel connector E PC 1786 Exp channel cassette E Other electronics TFT assembly including backlight U Touch screen U O2 cell containing Pb I Air module containing multiple PC boards I O2 module containing multiple PC boards I AC DC Converter containing PC boards P Exp valve coil E Safety valve pull magnet I Construction materials The construction materials used in Servo in of the to...

Page 7: ...n needed Power consumption Normal use no extra internal or external devices used On 60 W Stand By 42 W Important Noise level Less than 50 dBA Packing materials The amounts of packing materials will vary depending on customer adaptation Siemens Elema is a member of the Swedish REPA register No 5562378850 Materials for packing Loading pallet Fulfils the USA requirements 7 CFR 319 40 May 25 th 1995 C...

Page 8: ...Siemens Elema AB Important Servo E382 E407E 061 01 01 02 1 8 Notes 1 ...

Page 9: ... the Servo System Make sure that the Servo System is properly cleaned before performing any service or maintenance routine cleaning as well as extended cleaning For cleaning procedures refer to the Servo Ventilator System User s manual Any service or maintenance must be noted in a log book All disposable parts must be discarded according to local regulations and in an environmentally acceptable wa...

Page 10: ... User Interface Patient Unit The Control cable connects the User Interface and the Patient Unit These main units are mounted onto the Servo Mobile cart which is the main body of the system A number of optional equipment can also be incorporated in the Servo System Examples on such optional equipments are Servo Ultra Nebulizer Servo Servo Holder for the Patient Unit Gas trolley for backup gas cylin...

Page 11: ...lternative mounting 6 Panel holder 7 Control cable 8 Connection for PC service port 9 On Off switch 10 Locking arm tilting For further information regarding the User Interface controls refer to the User s manual When the front panel section is removed from the rear cover the following parts are accessible Touch screen assembly front cover frame included TFT Display including lamps PC board Backlig...

Page 12: ...rnal fan with filter 7 Connector for external 12V DC power supply 8 Fuse F1 for external 12V DC power supply 9 Optional connector 10 Connection to the User Interface control cable 11 9 pole serial port for data communication RS 232 12 Expiratory outlet 13 Inspiratory section cover 14 Expiratory inlet 15 Module unit for connecting optional modules e g up to six Battery modules Servo 16 Connector fo...

Page 13: ...fan Mains supply inlet PC 1778 Standard connectors DC DC The PC boards as listed above are connected to the PC 1770 Main back plane The gas modules the O2 cell and the safety valve pull magnet are connected to the PC 1780 Pneu matic back plane Plug Play Module incl PC 1775 Plug and Play back plane PC 1778 Standard Connectors DC DC SVX9101X PC 1771 Control PC 1784 Expiratory channel Expiratory valv...

Page 14: ...ction are the Expiratory cassette Expiratory valve coil The expiratory cassette is a complete unit and must not be disassebled It contains the following parts Expiratory inlet with moisture trap Ultrasonic flowmeter Heating foil to keep a stable temperature in the expiratory gas Pressure transducer connection incl bacteria filter to connect the expiratory pressure transducer Expiratory valve incl ...

Page 15: ...ls all monitoring and alarm functions in the system including trends of measured values Events such as alarms and change of settings will also be logged The Monitor S W is stored on PC 1772 MONITORING New software can be installed via a System software update The system software must be re installed if PC 1772 is replaced The Monitor S W is executed by the microprocessor on PC 1772 Panel The Panel...

Page 16: ...Siemens Elema AB Introduction Servo E382 E407E 061 01 01 02 2 8 2 Notes ...

Page 17: ...rnal fan 3 9 Optional PC board slots 3 10 Control cable 3 10 Only personnel trained and authorized by Siemens shall be permitted to perform installation service or maintenance of the Servo System Make sure that the Servo System is properly cleaned before performing any service or maintenance routine cleaning as well as extended cleaning For cleaning procedures refer to the Servo Ventilator System ...

Page 18: ... data for further transfer to a computer Service purpose Microprocessor on this board includes control of the functions of the USER INTERFACE ID PROM The ID information can be read by the Servo System On Off switch Switch to Power up or Power down the Servo System Refer to section Power supply Connection for PC P86 Ethernet port intended for test and service purpose Connected via a service cable F...

Page 19: ...ay be connected from a compressor for medical air Filter The FILTER protects the ventilator from particles in the gas delivered to the GAS MODULES The filter must be replaced during the Preventive maintenance The filter housing and the filter cover are provided with matching guide pins These guide pins prevent mounting of the filter cover with gas inlet nipple on the wrong module A non return valv...

Page 20: ...a filter according to the User s manual The bacteria filter must also be replaced during the Preventive maintenance The O2 cell gives an output voltage proportional to the partial pressure of oxygen inside the Inspiratory pipe At constant ambient pressure this output is proportional to the O2 concentration in percent In each O2 cell the output signal will stay at a fairly constant level usually wi...

Page 21: ...dby The pressure inside the inspiratory pipe is 5 cm H2 O above the preset Upper Pressure Alarm limit This condition is controlled by the Monitor subsystem The pressure inside the inspiratory pipe is 7 cm H2 O above the preset Upper Pressure Alarm limit This condition is controlled by the Breathing subsystem The pressure inside the inspiratory pipe is above 117 cm H2 O This is an extra safety func...

Page 22: ... outside of the expiratory pipe where the ULTRASONIC FLOWMETER is situated The purpose of the HEATING FOIL to reduce condensation and maintain a stable temperature in the expiratory gas Ultrasonic flowmeter The ULTRASONIC FLOWMETER is a measuring device for the expiratory gas flow using ultrasound technique with two ultrasonic transducers recievers The measuring process is controlled from the main...

Page 23: ...nd valve seat are integrated parts of the EXPIRATORY OUTLET PC 1786 Expiratory channel cassette The PC 1786 EXPIRATORY CHANNEL CASSETTE is a connection board integrated into the EXPIRATORY CASSETTE for the ULTRASONIC FLOWMETER and for the HEATING FOIL It connects to PC 1785 mounted in the expiratory cassette compartment Includes also an ID PROM The ID information can be read by the Servo System PC...

Page 24: ...red O2 concentration according to front panel setting INSP FLOW REF 1 and INSP FLOW REF 2 are used for the control of its respective GAS MODULE Air and O2 Regulation of a constant Inspiratory flow during expiration time The desired constant Inspiratory flow value is the default or preset Bias flow value see User s manual This desired constant Inspiratory flow value is used to generate the flow ref...

Page 25: ...omatically adjust to the connected mains power if the mains power is within specified range No voltage or frequence setting is required The mains inlet is equipped with two mains power fuses F11 and F12 rated 2 5 A AC DC Converter Converts the connected AC Power to the internal DC supply voltage 12 V_UNREG PC 1778 Standard connectors DC DC Converts the internal DC supply voltage 12 V_UNREG into th...

Page 26: ...slots Functional Main Blocks diagram marking X For future options the Servo System is equipped with two optional PC board slots Control cable This CONTROL CABLE connects the PATIENT UNIT and the USER INTERFACE The cable can be partly winded up under a rubber cover on the rear of the USER INTERFACE ...

Page 27: ...maintenance of the Servo System Make sure that the Servo System is properly cleaned before performing any service or maintenance routine cleaning as well as extended cleaning For cleaning procedures refer to the Servo Ventilator System User s manual Any service or maintenance must be noted in a log book All disposable parts must be discarded according to local regulations and in an environmentally...

Page 28: ...moved while the mains power or battery power is applied to the PC boards Remove and insert the PC boards very carefully to avoid damage to the connectors Replacing PC boards The Servo system software is distributed on different subsystems located on the following PC boards PC 1771 Control PC 1772 Monitoring PC 1771 Expiratory Channel PC 1777 Panel When delivered as spare parts these PC boards are ...

Page 29: ...placing PC 1777 Panel it can be necessary to re install the system software For further information refer to section Replacing PC boards in this chapter SVX9100X With power supply connected to the Servo System there are energized electrical components inside the unit e g the backlight lamps that are supplied with 660 V by the Backlight Inverter All personnel must exercise extreme caution if fault ...

Page 30: ...01 01 02 4 4 4 Patient Unit To remove the patient unit front cover 1 Remove the screw covers and the screws 2 Remove the two ventilation covers 3 Remove the two screws 4 Carefully lift off the patient unit front cover 1 SVX9108X SVX9109X f d f d SVX9110X a SVX9107X s a ...

Page 31: ...ply connected to the Servo System there are energized electrical components inside the unit e g 150 V at the AC DC Converter All personnel must exercise extreme caution if fault tracing or adjustments are performed with power supply connected and with the patient unit covers removed SVX9101X Note When replacing PC 1770 1 The ventilators ID Serial No configuration time stamp for preventive maintena...

Page 32: ...ct the tubes 4 and 5 from PC 1784 Disconnect the inspiratory pressure tube from the inspiratory pipe inside the inspiratory section not visible in this illustration Remove the two screws 6 Lift off the cassette compartment 1 All parts behind the cassette compartment are now accessible e g the PC 1780 Pneumatic back plane 7 Safety valve pull magnet 8 SVX9129X k j SVX9105X d f a h g h s ...

Page 33: ...ift off the cover 1 All parts in the inspiratory section are now accessible To remove the inspiratory pipe Lower the locking catch 1 and lift off the O2 cell Disconnect the inspiratory pressure tube 2 Depress the two catches 3 one at each side of the safety valve housing and lift off the inspiratory pipe 4 SVX9111X a s SVX9130X a s SVX9131X d f ...

Page 34: ... When assembling make sure that the connector muff properly seals around the inspiratory pipe 1 The connector muff must not be pushed too far onto the nozzle units 2 Note 2 The gas modules used in Servo are factory adjusted for this purpose When replacing gas modules make sure to use only Servo gas modules Similar gas modules intended for the Siemens SV 300 300A or KION Systems must not be used SV...

Page 35: ...on service or maintenance of the Servo System Make sure that the Servo System is properly cleaned before performing any service or maintenance routine cleaning as well as extended cleaning For cleaning procedures refer to the Servo Ventilator System User s manual Any service or maintenance must be noted in a log book All disposable parts must be discarded according to local regulations and in an e...

Page 36: ...o Ventilator System e g change patient category configuration and or add new ventilation modes An option upgrade is individually created for each ventilator and can only be installed on this ventilator Serial number of the ventilator must be stated when ordering an option upgrade Option upgrade is distributed on an Option card As the option upgrade will change the functions of the ventilator a new...

Page 37: ...are incompatibility the installation will be terminated A message will occur on the screen Remove the PC card and restart the Servo System software update Installation procedure Set the On Off switch to Off Insert the S W version update card Set the On Off switch to On The installation window will now appear on the screen and the semi automatic installation procedure will start Follow instructions...

Page 38: ... Servo System to allow battery operation Let the Servo System run in battery operation and check that the No battery capacity alarm is not activated within the specified time The Operating time is dependent on the number of Battery modules connected refer to the Servo Ventilator System User s manual Check that the time between the Limited battery capacity alarm and the No battery capacity alarm is...

Page 39: ... PC 1771 or PC 1772 containing the lithium battery to be replaced Note Do not remove the cable connector 1 Information stored in the PC board memory will be erased if the connector is removed If the battery on PC 1771 is disconnected user default configurations made via the Field Service System FSS and Pre use check results including transducer calibrations will be erased If the battery on PC 1772...

Page 40: ...ecommended to replace the complete expiratory cassette It is very important for the function of the expiratory valve that the valve membrane is removed and mounted correctly as described below To remove the valve membrane from the cassette Carefully remove the membrane including retaining ring using a suitable retaining ring pliers SVX9135X To mount the valve membrane into the cassette Place the r...

Page 41: ...tte as shown in the illustration SVX9136X SVX9135X Carefully release and remove the retaining ring pliers Check that the membrane is not deformed by the retaining ring If necessary remove the membrane and redo the complete mounting procedure Mount the expiratory cassette onto the Patient Unit After any maintenance or service of the Servo System perform a Pre use check Refer to the Servo Ventilator...

Page 42: ...ons on the control unit Press Main screen fixed key to unlock View configuration Adult alarm limits Infant alarm limits Displayed values User default configuration setup Date and time setup Edit configuration Set date and clock Biomed Service Event log Alarms Ventilator settings Apnea periods Immediate functions Displays Event logs Possible selections Latest logs Selected time interval Service log...

Page 43: ...e System FSS is required to change the locked user default configurations With the FSS it is also possible to import user default configurations e g configurations specified for all Servo in one department or hospital Open user default configurations This level controls user default configurations such as Alarm Limits and Displayed Values The open user default configurations can be changed via the...

Page 44: ...Siemens Elema AB Service procedures Servo E382 E407E 061 01 01 02 5 10 5 Notes ...

Page 45: ...vo System is properly cleaned before performing any service or maintenance routine cleaning as well as extended cleaning For cleaning procedures refer to the Servo Ventilator System User s manual Any service or maintenance must be noted in a log book All disposable parts must be discarded according to local regulations and in an environmentally acceptable way After any service or maintenance of th...

Page 46: ...during troubleshooting General Before starting troubleshooting try to eliminate all possibilities of operational errors If the malfunction remains use the troubleshooting guides below as well as the information in chapter Description of functions to locate the faulty part Perform actions step by step and check that the malfunction is eliminated When the fault is corrected carry out a complete Pre ...

Page 47: ...etric pressure values differs less than 8 hPa between MON and BRE BRE MON Check the Barometric pressure value in the Status window 1 If that value is within 630 1080 hPa replaced the PC 1771 Control 2 If that value is outside 630 1080 hPa replaced the PC 1772 Monitoring Gas supply pressure test Checks that the gas supply pressures Air and O2 measured by the internal gas supply pressure transducers...

Page 48: ...ble replace the expiratory cassette and check if the new cassette is accepted by the Pre use check 3 Check the inspiratory section Check that the safety valve membrane is correctly seated in the inspiratory pipe Check that the inspiratory pipe is correctly mounted in inspiratory section Check that the safety valve closes properly when the Pre use check is started distinct clicking sound from the v...

Page 49: ...use check or pressure transducer test in FSS Safety valve test Checks and if necessary adjusts the opening pressure for the safety valve to 117 3 cm H2O Checks the hardware signals related to the safety valve functions BRE MON 1 Check the inspiratory section Check that the safety valve membrane is correctly seated in the inspiratory pipe Check that the inspiratory pipe is correctly mounted in insp...

Page 50: ...PC 1772 Monitoring Battery switch test If Battery modules are connected Checks that the power supply switches to battery when mains power is disconnected Checks that the power supply switches back to mains power when main is re connected MON 1 Check that the total remaining time for the connected battery modules are 10 min If not replace the empty battery with a charged battery and repeat the test...

Page 51: ...78 Standard connectors DC DC 2 Replace gas modules 6 POWER_FAILURE_24_VOLTS_TOO_HIGH 1 Replace PC1778 Standard connectors DC DC 7 INSP_VALVE_RANGE_ERR 1 Replace PC1771 Control 2 Replace PC1772 Monitoring 3 Replace gas modules 8 TECH_ERR_INSP_PAUSE_HOLD_TIME_ EXCEEDED 1 Replace PC1771 Control 9 TECH_ERR_EXP_PAUSE_HOLD_TIME_ EXCEEDED 1 Replace PC1771 Control 10 VALVES_DISABLED 1 Replace PC1784 Expir...

Page 52: ... PC 1775 Plug and play back plane 3 PC 1778 Standard connectors DC DC 4 PC 1781 Inspiratory pressure transducer 5 PC 1781 Expiratory pressure transducer 6 O2 cell or O2 cell cable or PC 1772 Monitoring 32 PC 1784 Expiratory channel or PC 1772 Monitoring 33 Gas module Air or PC 1772 Monitoring 34 Gas module O2 or PC 1772 Monitoring 35 PC1772 Monitoring 256 PC1771 Control 512 PC 1777 Panel 784 N A 1...

Page 53: ...BRE_NODE_CONNECT_TIMEOUT 1 Replace PC1771 Control 34 PANEL_NODE_CONNECT_TIMEOUT 1 Check control cable 2 Replace PC1777 Panel 35 EXP_FLOW_MTR_NODE_CONNECT_ TIMEOUT 1 Replace PC1784 Expiratory channel 37 EXP_FLOW_MTR_RANGE_ERR N A 38 BARO_UPPER_LIMIT_EXCEEDED 1 Technical error code corresponding to error code 30 39 BARO_LOWER_LIMIT_EXCEEDED 1 Technical error code corresponding to error code 31 40 IN...

Page 54: ... PANEL_DEVICE_ERROR 1 Replace PC1777 Panel 20002 PANEL_BACKLIGHT_BROKEN 1 Replace backlight lamps 2 Replace PC board Backlight Inverter 20003 PANEL_BUTTON_STUCK 1 Check user interface membrane buttons 2 Replace the touch screen 3 Replace PC1777 Panel 20004 PANEL_AUDIO_FAILED 1 Replace the loudspeaker 2 Replace PC1777 Panel Exp Flow Meter 40001 Technical error in Exp flow meter More details in the ...

Page 55: ...intenanceofthe Servo System Make sure that the Servo System is properlycleanedbeforeperforminganyserviceor maintenance routinecleaningaswellasextended cleaning Forcleaningprocedures refertothe Servo Ventilator System User s manual Any service or maintenance must be noted in a log book All disposable parts must be discarded according to local regulations and in an environmentally acceptableway Afte...

Page 56: ...can e g be Humidifierequipment Otheroptionalequipment Preparations Make sure that the Servo System is properly cleanedbeforeperforminganymaintenance routine cleaning as well as extended cleaning For cleaning procedures refer to the Servo Ventilator System User smanual Make sure that the Servo System works properly beforeperforminganymaintenance Set the On Off switch on the User Interface to Off Di...

Page 57: ...ve maintenance kitforServo should beused The following parts shall be replaced and they are in cluded inthe Preventivemaintenance kit forServo A Filters for the gas modules B Bacteriafilterfortheinspiratorypressure transducer C Bacteria filter for the O2 cell D Nozzle units for the gas modules B A D SVX9004X C Performing the Preventive maintenance Prepare the unit as described in section Preparati...

Page 58: ...t each side of the safety valve housing and lift off the inspiratory pipe 4 including the connector muff 5 Replace the filter 6 for the inspiratory pressure transducer Make sure that the filter is correctly seated into the rubber ring Note This filter may already be replaced as a part of the ExtendedcleaningofInspiratorychannel performedpriortothePreventivemaintenance SVX9138X I SVX9139X B C SVX91...

Page 59: ...1 02 Siemens ElemaAB Servo Preventivemaintenance 7 5 7 Pull out and lift off both gas modules Loosen the screw 1 Lift off the gas module bracket 2 SVX9115X Replace the bacteria filter 1 for the O2 cell SVX9141X SVX9114X I ...

Page 60: ...e inspiratory section cover SVX9005X On each one of the two gas modules Unscrew the two screws 1 and lift off the cover 2 Remove the rubber sealing 3 from the old filter 4 and discard the old filter Mount the rubber sealing on the new filter and put the new filter into the cover 2 Mount the cover on the gas module All disposable parts must be discarded according to local regulations and in an envi...

Page 61: ...nternal fan will start with half effect at approx 33 C and with full effect at approx 43 C Re connecttheconnector 2 andmountthe inspiratorysectioncover UserInterface Checkthetouchscreenreadability Brightness backlight Transparency Surface Check if pixels on the touch screen are defective Open the Status window A few defective pixels can beaccepted Checkthatdefectivepixelsarenot concentrated to a s...

Page 62: ...he actual barometric pressure the barometer in Servo must be calibrated FSSisrequired contactpersonnelauthorizedby Siemens that have access to the FSS Gassupplypressuretransducers Connect the gas supplies Air and O2 Select Status General on the User Interface Disconnect the gas supply one gas at the time Checkthatthecorrespondingsupplypressurevalue in the Status window drops Batterymodules Check t...

Page 63: ...lstandards Allowable values and test methods are defined in the standard The use of a leakage tester e g Bender Safety Tester601 751orequivalentisrecommended Check that a Servo Ventilator System User s manual and a Servo Ventilator System Brief instructions correspondingtotheinstalledsoftware version is present Also check that operating manuals for all optional equipment connected to the Servo Sys...

Page 64: ...Siemens ElemaAB Preventivemaintenance Servo E382 E407E 061 01 01 02 7 10 7 Notes ...

Page 65: ...E382 E407E 061 01 01 02 Siemens Elema AB Servo Index 8 1 8 8 Index Alphabetic index 8 2 ...

Page 66: ... batteries 5 5 7 9 Lithium batteries Locking arm 2 3 Locking screw 2 3 Loudspeaker 2 3 3 2 Main rotary dial 2 3 Main units 2 2 Mains inlet 2 5 3 9 Mains supply connector incl fuses F11 and F12 2 4 Memory types 3 2 Menu flowchart 5 9 Menu key 5 9 Module unit 2 4 3 9 Monitor 2 7 Non volatile memory 3 2 Nozzle units for the gas modules 7 3 O2 cell 2 6 3 4 On Off switch 2 3 Option upgrade 5 2 Optional...

Page 67: ...E382 E407E 061 01 01 02 Siemens Elema AB Servo Diagrams 9 1 9 9 Diagrams Standard connectors 9 2 Functional Main Blocks diagram 9 3 ...

Page 68: ... connectors N28 N70 Control cable 1 12V_UNREG_PANEL 2 GND 3 LED_CONTROL 4 ON_OFF_CONTROL 5 CAN_PANEL H 6 CAN_PANEL L N27 Optional equipment 1 GND 2 DISABLE_VALVES_EXT L 3 CAN_EXPANSION H 4 CAN_EXPANSION L 5 12V_UNREG_EXPANSION N29 RS232 1 2 CI_RDX_ISO 3 CI_TDX_ISO 4 CI_DTR_ISO 5 GND_ISO 6 7 8 9 SVX9006X 1 5 SVX9007X 1 5 SVX9008X 1 2 5 6 4 SVX9009X 1 5 6 9 ...

Page 69: ... P P P P C F I EXPIRATORY SECTION E GAS MODULE O2 GAS MODULE AIR NEBULIZER AIR O2 GAS INLET SAFETY VALVE SAFETY VALVE PULL MAGNET PNEUMATIC BACK PLANE C C M C M EXPIRATORY CHANNEL CONNECTOR INSP PRESSURE TRANSDUCER EXP PRESSURE TRANSDUCER PC1781 PC 1781 X1 C CONTROL E EXPIRATORY SECTION F EXPIRATORY CHANNEL I INSPIRATORY SECTION M MONITORING P POWER SUPPLY T PRESSURE TRANSDUCERS U USER INTERFACE X...

Page 70: ...d No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior permission of the copyright owner in writing Subject to alterations without prior notice Issued by Siemens Elema AB Electromedical Systems Division SE 171 95 Solna Sweden E382 E407E 061 01 01 02 ...

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