Home

VR2 Control System - PG Drives Technology

1. 23 11 VR2 Operation 1 2 Prograrmisettinigs sequence ueste ete ente Bergen ennt pee pe oa ng OE 23 53 endo 24 14 Other eim ripe 24 LS Control Systerm Make up ueterem atte i ce d nae 24 e Immobilizing the Wheelchair 22 4 25 2 1 Prevention of Unauthorized Use 2 2 ameet osea 3 2 Sil JOYSTICK scio rt eae DR na IER ouis CORTO A SPARSIS EET T A 3 2 Power Module MOUNTING cient ntt gerit ri eh 3 2 1 32 22 POSON cci nne i phe he tian CES URGE Rp EGO m 4 Connections NE Caelo PR ER IV SK77898 3 PG TECHNOLOGY VRe Controt System 4 2 5 5 1 5 2 Wire Ga uge and sicci idee nec t eir e Re HERR oda 31 5 3 Baten WINING Re er DER CE 32 eremo E MEE EIN 33 5 5 Solenoid reris 33 6 Drive Motors
2. ei DRE 7 Batteries 8 Battery Charging 81 Off board Charging 8 2 On board Charging 9 IO Actuator Control ctis ocean 10 1 Actuator End stop Detection 38 16 2 Actuator 38 10 3 PEE 38 ll Production Tests enmt e 40 LT Mounting teret tenter e ket beste tate eut he ope uer ga 40 11 2 Cables dnd COMMSCTONS 2222 40 11 8 Joystick 2 REP 40 Preset SCMINGS sce ee Caeci decree pit rep P ec e I d 40 11 5 Operational Test icr tr ettet pei vede teret pe PR I FOE ERE ERR 40 11 6 ed gel rv dp RO 41 SOM SIOD ei eth ncs aora Ru 4 le Electromagnetic Compatibility 4e 12 1 EMISSIONS ci raduno 42 Motor SUPPE SS datos to pre Fat vc oe vt 42 e 42 122 E 42 Battery GU Ge eee C 43 Chapter 45 dudgeeltiailpe 47 uocem duet Lee uni ve reta Peer cradle 47 1 2 cite pire ttti tette ute dca Fou Res 47
3. 48 1 4 Safety FOMCES EET 49 SK77898 3 VRe Controt System PG DRIVES TECHNOLOGY 1 5 Drive pete etae boe menie npxat tre gai dir XR ERE Pd e Speed Parameters 21 Acceleration 2 27 DecOlOIGllODis usce n e dene nit a 51 2 9 s nosci sen cite R 51 2 1 T m DECIMO 51 2 9 5 t ebrio 51 2 0 Reverse Speed 222225 51 24 MMN aaa 51 PEEL pc 52 2 9 JW rnberot Drive Profiles aes SR HY DERE ER xt uter ires 52 2 10 ACCEISIOTION pet rk ht era tem e RH RO ERE 52 211 Minirmurm Deceleration eisi seen denen ce ee eet a en 52 2 12 Minimum Turn eror p ava Oi a 53 2 13 Minimum Deceleration 53 3 Actuator 5 2 2 2 2 1 1 4 401 4411 122 471 7 772 55 4 N rmber Of ACTUGIOIS 55 9 2 Acudir M M EE 55 3 3 Actuator Current Limit Tire QUE cic aote trece rrr ecce 55 OA Actur ENA FOCE ctm 55 3 5 ACtuator 2 Current Umit Ime QUE 55 3 6 Actuator Selection with 55 3 7 A
4. 6 Servicinc amp Diacnostics 23 Detecting a Trip has Occurred Firstly observe the control system s TruCharge battery gauge display This will behave as described in one of the following sections e3l Flashing rapidly The control systern is tripped Connecting a programmer to the control system while this is happening will give you a trip code Todetermine the trip type refer to section 3 2 3 2 Flashing slowly No trip is currently detected by the control system The slow flash is an indication that the batteries require charging Atrip may have occurred previously read the control system s diagnostic log then refer to section 3 to establish the trip type 2 3 3 Display is steady No trip is currently detected by the control system Atrip may have occurred previously read the control system s diagnostic log then refer to section 3 to establish the trip type 2 3 4 Display does not illuminate No power is reaching the control system Ensure the batteries are fully charged and that all connections between batteries and the control system are made e fthese connections are good then the Power Module may be defective refer Section 5 235 Actuators do not respond If the vehicle has more than one actuator check to see how many are not working e Check that all connections between the control system and the actuator motors are correct e Check that the actuator motor is not faulty This can be ach
5. Current Limit Min Current Foldback Threshold Time Level amp Temperature Boost Current amp Time 71 8 2 Motor COMPENSATION ete einai Dr a I ERR 75 8 3 Invem MI Drech iii Ser Reb 76 8 4 divert 2 DISCON Rd aaa 76 8 5 RE 76 odere E 76 SK77898 3 vil VRZ Controt System PG DRIVES TECHNOLOGY 8 7 DAMPING eU 9 Memory Functions 9 Read Timer 9 2 Clear Timer 9 9 Read System 77 EASE SVSIONULOG as gah aint Tm 77 Chapter 4 2 22 441 44 4 79 mee 8l e 5 8l 2 AcCluator Buitom andi LEDS 81 2 1 1 Wheelchairs with One Actuator 81 2 1 2 Wheelchairs with Two Actuators ss eem 81 2 2 high BUROM nope oa Rr Rr 84 2 3 T r Indicator Button and BED sesso e Yer pee re 84 2 4 Right Turn Indicator Button and LED He 84 2 5 Hazard WamingBulton ane LED eee ERE ede 84 3 Lighting Module Installation al LESS 922 COMMESCTION NIE
6. 23 Cleaning 3 Controls On Off Button and Battery GAUGE nce 5 3 2 Locking Unlocking the Wheelchair 6 AJOYSTICK dq 6 34 Maximum Speed Profile Indicator 6 3 4 1 Maximum Speed INGICATON 6 33422 PONS NACO cse cre qe cates uad EN ER 6 ou 7 3 6 Speed Profile Decrease Button 7 37 Speed Profile Increase Button 7 3 8 JActualor Buttons and LEDS s scis cet t ren AER ERE 7 3 8 1 Wheelchairs One ACTUOIOFE tn ne t riter kk nia rt c 7 3 8 2 Wheelchairs wit TWO ACTUGITOIS 7 39 Charger and Programmer SOCKET urisini nrnna 8 4 Getting Ready to Drive 124 4 0 9 5 Tips for Using Your Control System 9 o DIVNO Generale ean u rone titer dede c ncc b ce 9 5 2 Drwving TECNNIQUES e e 9 6 Precautions for Use IO 10 7 Safety eld cime le 7 1 CHECKS teatral Ta 12 7 2 Weekly CHECKS secessu utate um pem Pes wende ducts pP banale 12 rM 12 8 Control System Status indication s 8 1 Batery Gauge
7. Basic Tests These tests are a minimum recommendation only It is the responsibility of the service person s to perform other tests relevant to the original trip and wheelchair type are carried out Refer to the wheelchair s Technical Manual for exact information of other tests PGDT accept no liability for losses of any kind arising from the carrying out of the described tests or from not carrying out additional relevant tests These tests should be conducted in an open space and a restraining device such as a seat belt should always be used PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 6 section 4 Gradient Test Before carrying out this test ensure another person is present to prevent the wheelchair from tipping backwards Chapter 6 section 4 4 Servicing of Defective Units Any replacement work carried out without the wheelchair manufacturer s permission will invalidate the control system s warranty PGDT accept no liability for losses of any kind arising from unauthorized opening adjustments or modifications to a any component of a control system Chapter 6 section 5 SK77898 3 CuaPreR 7 WARNING SUMMARY 35 VRZ Controt System PG DRIVES TECHNOLOGY 36 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 8 SPECIFICATIONS P CHAPTER 8 SPECIFICATIONS SK77898 3 137 VRe Controt System PG DRIVES TECHNOLOGY 138 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 8
8. Off means the motor will rotate in the normal direction 85 Motor Swap This swaps the motor output channels of the VR2 I e becomes right and right becomes left The parameter can be set to on or off On Means the motor outputs will be swapped Off Means they will not 8 6 Torque The Torque parameter boosts the current to the motors at low speed settings If the motor is stalled for example the wheelchair is stuck against an obstacle such as a door threshold then this will be automatically detected and the current to the motors will be increased allowing the obstacle to be overcome Torque can be set between 0 and 100 A value of 0 means the Torque parameter has no effect Higher values mean that more current will be permitted in the described stall conditions the chair torque does not counter the effects of incorrect Ensure that the motor compensation is set correctly for compensation settings becomes to joystick commands If set too high the chair Q The higher the Torque setting the more responsive the chair can have a jerky or jumpy feel 87 Tremor Damping This parameter allows the effects of hand tremor to be reduced If the user has a condition that results in hand tremor then increasing the value of Tremor Damping will reduce the effect of the tremor making the wheelchair more controllable Tremor Damping can be set between 0 100 A value of 0 means Tremor Damping has no effect Note eve
9. PIOGUCTON ELS 131 2 18 Programming Introduction iecore 132 SaN FMC CS RETE EI CEDE STORIES 132 2 20 Brake ve i e Dex ed eb eda rg 132 2 21 Curent iere vice besos tere t noc d de rr e eec 132 2 22 Motor Compendion nsu ceptus tab et neue fied tall 132 PP SIUE MEE 133 2 24 Ttemor DAMPING tta CR SER e on 133 2 25 Sem EE 134 PI MA m 134 2 27 Semicing Introduction ioci oder de p eon Deco a RR PRX rena 134 2 20 DIAQGHOSTICS INNOGUCTON ta us ccs oco c mes meia un HY ORENSE RR EXE Per mua nte 134 2 29 Batteries Discharge Very Quickly eme 134 2 90 BASIC 5 tete dodi 135 2 31 EUM 135 2 32 Servicing of Defective Units men nct eec 135 Chapter 8 Specifications 2 22 22 22 7 Electrical 2 2 22 7 22 2 1 1 2222224 4222 39 SK77898 3 XI VRe Controt System PG DRIVES TECHNOLOGY About this manual This manual is split into 6 chapters which are in turn split into separate sections Each chapter deals with a specific issue Chapter 1 Operation This chapter deals with the controls and functionality of the VR2 Control System Chapter 2 Installation This chapter deals
10. SPECIFICATIONS Electrical Specifications Supply Voltage 24 Operating Voltage 16Vdc to 35Vdc Peak Voltage 35Vdc Reverse Battery Voltage 40Vdc PWM Frequency 20kHz 0 5 Brake Voltage 12Vdc or 24Vdc Brake Current 100mA min Use only Neutrik Batt Charging Current 12Arms max Actuator Current 12A max Maximum Drive Current VR2 50 50A VR2 60 60A VR2 70 70A VR2 90 90A Moisture Resistance IPx4 Operating Temperature 25 C to 50 C Storage Temperature 40 C to 65 C EMC tested on sample wheelchair Susceptibility Tested at 30V m to EN12184 and ANSI RESNA requirements Emissions To EN55022 Class B ESD IEC801 part 2 SK77898 3 139 VRe Controt System PG DRIVES TECHNOLOGY 140 SK77898 3
11. and the battery condition is good check the maximurn speed setting If adjusting The speed setting does not remedy the problem then there may be a non hazardous fault Contact your service agent 87 Speed Profile Indicator is Steady The display will vary slightly depending on whether the control system is programmed to operate with drive profiles For more information on drive profiles refer to Chapter 3 8 7 1 Speed Indication The number of LEDs illuminated shows the maximum speed setting For example if the setting is speed level 4 then the four left hand LEDs will be illuminated 8 7 2 Profile Indication The LED illuminated shows the selected drive profile For example if drive profile 4 is selected then the fourth LED s from the left will be illuminated 88 Speed Profile Indicator Ripples Up and Down This indicates the control system is locked refer to section 3 2 for details of how to unlock the control system 89 Speed Profile Indicator Flashes This indicates the speed of the wheelchair is being limited for safety reasons The exact reason will depend on the type of wheelchair however the most common cause is that the seat is in the elevated position 810 Actuator LED Flashes This indicates that the Actuator s may be inhibited in one or both directions Refer to Chapter 3 for programming details SK77898 3 IS VRZ Controt System PG TECHNOLOGY 9 Battery Gauge The battery gauge is inclu
12. PROGRAMMING 7 General Parameters 71 Fast Brake Rate Adjusts the deceleration rate used while fast braking Fast braking is when the joystick is pulled to the reverse position to make a faster stop Adjustable between 0 and 100 in steps of 1 If this value is set lower than the Deceleration value then the Deceleration value will be used for fast braking 7 2 Soft Stop Rate Adjusts the deceleration rate that is used while the wheelchair is soft stopping Soft stopping happens if the VR2 is switched off while the wheelchair is being driven Adjustable between 0 and 200 in steps of 1 73 Front Wheel Drive Rate Front Wheel Drive Rate adjusts the driving characteristics of the VR2 to suit a wide range of front wheel driven wheelchairs Adjustable between 1 and 100 in steps of 1 Increasing this value means that the VR2 s software is more suitable for higher speed front wheel drive wheelchairs 7 4 Soft Reverse Deceleration Adjusts the deceleration rate used while the wheelchair is stopping in reverse This rate is separately adjustable from the Deceleration parameter to prevent the wheelchair tipping when reversing down a gradient Adjustable between 25 to 100 in steps of 1 The value is a percentage of the Deceleration parameter A typical value is 70 75 Reverse Driving Alarm Sets whether the VR2 gives an audible warning while driving in reverse The parameter can be set to on or off On Means there is an audible alarm g
13. This will be indicated by the illumination of both actuator LEDs Actuator adjustment can then be made by deflecting the joystick forwards and backwards To re enter drive mode depress either the actuator button or a speed button 212 Wheelchairs with Two Actuators Depressing the actuator button will enter actuator adjustment mode Depressing the button once illuminates the LEFT LED and deflection of the joystick forwards or backwards will adjust the actuator connected to that channel Selection between the two actuators is achieved by deflecting the joystick to the left and right As the actuator selected changes then so will the LED which illuminates LEFT for actuator 1 and RIGHT for actuator 2 SK77898 3 8l VR2 Controt System PG TECHNOLOGY VR2 L USER CONTROLS Joystick Control Panel Charger and Programmer Socket Front Control Panel Details No Actuators With Actuators 8e SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 4 LIGHTING VR2 CONTROLS Secon Battery Gauge On Off Button Horn Button Maximum Speed Profile Indicator Speed Profile Decrease Button Speed Profile Increase Button Actuator Button Lights Button Hazards Button Indicator Buttons SK77898 3 83 VR2 Controt System PG DRIVES TECHNOLOGY To re enter drive mode depress the actuator button again or depress either speed button 22 Light Button Indicator To turn on the wheelchair s lights operate this button
14. can be programmed to meet your needs Programming can be performed using a Programmer or specialist PC software and interface cable The is a small hand held unit which can be plugged into your control system to alter the program Your wheelchair distributor or service agent or wheelchair manufacturer will be able to program your control system for you If you have 1 read the PP1a user guide before you use it If you re program your control system make sure that you observe any restrictions given in your wheelchair user manual Note any changes you make for future reference professionals with in depth knowledge of PGDT electronic control systems Incorrect programming could result in an unsafe set up of a wheelchair PGDT accepts no liability for losses of any kind if the programming of the control system is altered from factory pre set values Programming should only be conducted by healthcare 8 SK77898 3 PG TECHNOLOGY CHAPTER OPERATION le Joystick Knobs The knob fitted to your joystick is suitable for most applications If you would prefer another type there is a range of alternatives available Please contact your wheelchair distributor or manufacturer for advice Do not replace the joystick knob with any unauthorized item it may Cause hazardous operation item It may cause hazardous operation PGDT accepts no liability for losses of any kind arising from failure to comply with
15. e the entire system off at the VR2 by pressing the ON OFF button attendant module system hold the speed button down and the joystick displaced from center at the same time as turning the system back on at the VR2 by pressing the ON OFF button Continue to hold the speed button and joystick until the Green and Red control LED s on the attendant module system begin to flash alternately This will occur after approximately 5 seconds Also at this time the speed display will go blank Release both Press the speed button again the control LED s will both illuminate and 1 LED on the speed display will be visible Fully deflect the joystick to the desired forward position and press the speed button Now 2 LED s on the speed display will be visible Fully deflect the joystick to the desired left position and press the speed button The speed display will now be flashing all 5 LED s display will show only one LED In this instance repeat the If the reorientation has been unsuccessful then the speed entire sequence the entire system off and on again at the VR2 by pressing the ON OFF button before attempting to drive SK77898 3 99 VRe Controt System PG DRIVES TECHNOLOGY 6 Diagnostics The dual module has its own diagnostic facility which opperates in the following way If the red and green conirol indicator LEDs are flashing rapidly and alternately then the VR2 has tripped Refer to
16. or more importantly the wiring to them When a control system has detected a fault system trip is indicated Using this guide it is possible to define a trip as belonging to one of 10 types Once this type has been established there are suggestions as to what the possible cause may be The guide should only be used to decide the starting point of your own diagnosis as it is possible for the controller to indicate a fault in another component even though the controller itself may be defective Nevertheless experience has shown that connectors and wiring are the major cause of wheelchair electrical problems so it is necessary to examine these more vulnerable areas first professionals with in depth knowledge of PGDT electronic controllers An incorrect or badly effected repair could result in an unsafe set up of a wheelchair PGDT accept no liability for losses of any kind arising from an incorrect or badly effected repair Diagnostics should only be conducted by healthcare Diagnostics Process For efficient and effective diagnosis the following basic steps should be taken Establish the type of control system fitted to the wheelchair e Confirm there is a trip or has been an intermittent trip Establish the trip type e Refer to the trip table Refer to the possible cause as indicated by the trip table and carry out recommended investigative and corrective action SK77898 3 PG DRIVES TECHNOLOGY
17. prevented from moving the wheelchair This indicates a system trip i e the VR2 has detected a problem somewhere in the wheelchair s electrical system Please follow this procedure e Switch off the control system Make sure that all connectors on the wheelchair and the control system are mated securely Checkthe condition of the battery e If you cant find the problem try using the self help guide given in section 8 5 e Switch on the control system again and try to drive the wheelchair If the safety circuits operate again switch off and do not try to use the wheelchair Contact your service agent 85 Self Help Guide If a system trip occurs you can find out what has happened by counting the number of bars on the battery gauge that are flashing SK77898 3 I3 VRZ Controt System PG DRIVES TECHNOLOGY Below is a list of self help actions Try to use this list before you contact your service agent Go to the number in the list which matches the number of flashing bars and follow the instructions If the problem persists after you have made the checks described above contact your service agent Ifthe programmable parameter Motor Swap has been enabled then left and right hand references in this table will need transposing The battery needs charging or there is a bad connection to the battery Check the connections to the battery If the connections are good try charging the battery The left hand motor has a
18. result in an unsafe set up for the wheelchair user and may create a fire hazard depending on the motors wiring connectors and circuit breakers installed on the unauthorized chair PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 3 section 8 2 Torque Ensure that the motor compensation is set correctly for the chair torque does not counter the effects of incorrect compensation settings Chapter 3 section 8 6 Tremor Damping The higher Tremor Damping is set the slower joystick response will become When setting Tremor Damping pay particular attention to stopping distances As the parameter dampens the response to the joystick commands stopping distance can be affected To stop the wheelchair with Tremor Damping activated you must release the joystick and allow it to center It is the responsibility of the wheelchair manufacturer to ensure requirements on stopping distances are adhered to Chapter 3 section 8 7 SK77898 3 7 WARNING SUMMARY 33 VR2 Controt System PG TECHNOLOGY 225 Mounting to rise above 41 7 For this reason the Lighting Module should be fixed in a position where it cannot be touched by the wheelchair user Chapter 4 section 31 It is possible for the case temperature of the Lighting Module 226 Wiring For lighting module sockets and 2 only use the exact parts specified below for the mating conn
19. 103 1 2 Joystick ReplOCerrierniu sienne reete rx a se HR HR ERR E ERR 104 1 2 1 Joystick Removal ER e ex bra mM ululatus 1 3 Joystick Cable Replacement 1 31 Joystick Cable REMOV Gli 1 9 2 Filling A JOYSTICK CODIG tad uber e recepere 1 4 Keypad Replacetrnent c cient tt terere e Mess TUM 2 2 DIAGMOSTICS PIOCOSS ciue integritati a uci urit laa da 2 3 Detecting a Trip has Occurred 2 3 1 enne m M E PM 213 2 Flashing SIOWY usciti ra d tiere e E RYE ERE de RR ER du 2 3 3 Display is steady 2 3 4 Display does suus ite cn i d d t ia eh EE 2 3 5 Actuators do not respond ina tton ear cte rri pepe raped eer aun 2 4 Oler ConditlOns seiten rated ok sini epe hte qui Keep e EOM ments 111 2 4 Control systerri will not SWITCD assis iui s tacit va sa asta Yt D RE ERR 112 2 42 Wheelchair SOWY sia ceci rcr ar eser ae d 112 2 4 3 Wheelchair will not drive in a straight line wo ee 112 2 4 4 One motor or brake becomes very 112 2 4 5 Batteries discharge very quickly siisii saana a aii 112 2 5 Trip DIAQNOSIS ae a eec 200770000 112 2 5 1 Trip cicign
20. 21 Socket 1 This socket accepts a Hirose DF7 series 3 way connector for the control of the LEFT side lights Refer to the illustration in section 3 4 for details 3 2 2 Socket 2 This socket accepts a Hirose DF7 series 3 way connector for the control of the RIGHT side lights Refer to the illustration in section 3 4 for details 3 2 3 Socket 3 This socket is the power and communications connection form the VR2 L and accepts the lighting module connection from the VR2 L spur This socket has no identification number 33 Output The maximum current ratings of the Indicator and Lighting outputs are as stated below INDICATORS 3 5A LIGHTS 1 75A These outputs self protecting and do not require fuses 7 or circuit brealers LIGHTING MODULE To Power Module 3 4 Wiring For lighting module sockets and 2 only use the exact parts specified below for the mating connector 86 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 4 LIGHTING Refer to the following illustration for more detail HRS part numbers Housing 7 35 3 96 Crimps DF7 1618SCF PG Drives Technology Connector Boot 76720 As an alternative a complete kit can be purchased from PG Drives Technology PG Drives Technology 3 Way Connector Kit D50301 PGDT recommends the use of 0 75 mr 20 AWG Tri Rated Equipment wire or equivalent Secure all cables to the wheelchair frame ov
21. Actuators parameter is set to greater than 1 SK77898 3 55 VRZ Controt System PG DRIVES TECHNOLOGY 3 7 Actuator End Stop Detection This can protect the actuator motor from high levels of current over extended periods of time This parameter can be set to On or Off On The parameters Actuator End Force and Actuator Current Limit Time Out are activated and stop the actuator motors Off The actuator will not be automatically stopped by the control system 23 8 Actuator End Stop Bleep This allows the use of an Audible bleep to tell you when the Actuator is stalled at its end stop This parameter can be set to On or Off 56 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING 4 Operation Parameters 41 Sleep Timer Sets the period of time before the control system will turn itself off if tne wheelchair is not driven The time can be set between 0 and 30 minutes in steps of 1 minute If the time is set to O the system will never turn itself off 42 Joystick Throw This allows you to program the control system so that full soeed can be reached with a reduced joystick movement throw This is particularly useful for wheelchair users with limited hand or arm movement 43 Invert Joystick This parameter inverts the direction of travel when moving the joystick This parameter can be set to On or Off On Deflecting the joystick Forward will result in Reverse drive Off Deflecting the joystick Forward will result
22. Current Foldback Threshold Current Foldback time Current Foldback level Current Foldback Temperature Current Limit Min Boost Drive Current Boost Drive Time SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING Motor Compensation Memory Functions Section 9 Invert M1 Direction Read System Log Invert M2 Direction Clear Systern Log Motor Swap Read Timer Torque Clear Timer Tremor Damping 14 Safety Fences Limits or fences can be applied to some dealer accessible programmable parameters These limits are known as safety fences and are programmed by PGDT when the Control System is manufactured The purpose of these fences is to prevent the wheelchair being programmed to be too fast or too severe in its acceleration or deceleration The parameters which can have fences applied to them are Forward Speed Acceleration forward amp reverse combined Reverse Speed Deceleration forward amp reverse combined Turning Speed Turn Acceleration forward amp reverse combined Min Power Turn Deceleration forward amp reverse combined Standard PGDT settings are 0 for the minimum fence value and 100 for the maximum fence value meaning there is a full range of adjustment If you wish to apply different fence values please contact PGDT manufacturer does not specify appropriate safety fence PGDT accepts no liability for losses of any kind if the chair values for a particular wheelchair application LS Drive Profile
23. DRIVES TECHNOLOGY 3 Trip Types and Their Possible Causes Once the trip tyoe has been established refer to the relevant section below for further information Trip Description amp Reference Code 1320 Refer to section 3 16 1505 Left Solenoid Brake Trip 3 9 1506 Right Solenoid Brake Trip 3 9 1600 10 High Battery Voltage 3 10 1 03 Charging Refer to section 3 6 1 04 6 Refer to section 3 13 5 Charging Refer to section 3 14 2 00 Low Battery Voltage 3 1 2C02 Low Battery Lockout 3 1 2 Refer to sections 3 7 amp 3 11 3 00 Left Motor Disconnected 3 2 3 00 Right Motor Disconnected 3 4 3000 Left Motor Wiring Trip 3 3 3001 Left Motor Wiring Trip 3 3 00 Right Motor Wiring Trip 3 5 01 Right Motor Wiring Trip 3 5 4401 Control System Trip 3 8 5400 7 5 Communications Trip 3 12 7A03 A Only 2 Actuator Motor Wiring Trip 3 15 7100 Joystick Trip 3 7 7101 Joystick Trip 3 7 7102 Joystick Trip 3 7 7103 Joystick Trip 3 7 7104 Joystick Trip 3 7 7147 Dual Joystivck Displaced Refer to section 3 11 7902 Refer to section 3 17 All Other Possible Control System Trip 3 7 amp 3 8 Codes 5 Flashing Speed Indicator LED s 2 A Flashing Actuator LED s SK77898 3 PG DRIVES TECHNOLOGY 6 Servicinc amp Diacnostics Trip Type I Low Battery Voltage This occurs when the control system detects that the battery voltage ha
24. Gasket Base Section Base Plan View Joystick Removal e Isolate the Joystick Module by disconnecting the Joystick Cable from the Power Module Remove the 5 retaining screws from the underside of the Joystick Module e Disconnect the Ribbon Cable from the joystick e Remove the Joystick knob e Remove the 2 retaining screws from the joystick base Slide joystick out through the Top Section e Remove the Gaiter Rubber Boot 104 SK77898 3 PG DRIVES TECHNOLOGY 6 Servicinc amp Diacnostics Mirco Knob Retaining Screws x2 Top Plan View Top Plan View 105 VRe Controt System PG TECHNOLOGY lee Fitting a Joystick Ensure Gaiter Rubber boot is positioned with the flange firmly against the underside of the Top Section Ensure the joystick is in the correct orientation The notch on the joystick plate should lineup with the Key in the Top Section Slide joystick up through the Top Section Check the seal of the Gaiter Rubber boot and secure using the 2 retaining screws Tightening to 0 8Nm 7 inch Ibs e Connect the Joystick Cable the Power Module Powerup the VR2 with the Joystick Ribbon Cable disconnected The VR2 should flash the left most speed Led The VR2 will now enter the Calibration sequence e Connect the Ribbon Cable and make sure the joystick is centered Press the horn key until the VR2 bleeps The2 left most sp
25. Manual SK77898 the has been subject to misuse or abuse or if the VRe has been modified or repaired by unauthorized persons The warranty will be void if the VRe has not been used eo SK77898 3 PG TECHNOLOGY SK77898 3 CHAPTER 2 INSTALLATION H CHAPTER 2 INSTALLATION el VRZ Controt System PG DRIVES TECHNOLOGY ee SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 2 INSTALLATION Documentation VRe Operation Study Chapters 1 2 and 3 It is important that the operation information in these chapters is supplied with the wheelchair either as part of the wheelchair user handbook or as a separate document This chapter sets out the installation conditions that must be complied with in order to meet the safety requirements of TUV Germany ISO7176 14 and 12184 Le Program Settings The VR2 control system is supplied with PGDT defined generic program settings system to suit the vehicle model and ensure safe operation in compliance with relevant legal requirements over the whole of the operating range PGDT accepts no liability for losses of any kind due to incorrect programming or the VR2 Control System Refer to Chapter 3 for programming details It is the manufacturers responsibility to program the control The wheelchair must stop within the maximum distance specified for the country in which the wheelchair will be used TUV Product Service Germany specify the distance to be as stat
26. OUTLET edu IET Eo E 3 2 3 50 E CIE E Edid LAG A E WING EUM 4 Programming 41 Lamp Voltage Plc obse EET 4 3 Indicatortaulr Chapter 5 Attendant Module 9I Introduction nee R 93 2 r 93 V MEC ed E 94 2 2 Control Button GN INGICGION uice tort detener rh eii ee veta 94 2 2 1 COMMO INGICGION 94 2 2 1 Cere 94 2 9 Actudtior BUTTON GONG LEDS TIR 94 vill SK77898 3 PG DRIVES TECHNOLOGY 2 3 1 Wheelchairs with One Actuator 2 3 2 Wheelchairs with Two Actuators 2 4 Maximum Speed Button and 95 2 4 1 Maximum Speed INGICATON he nere ed 95 2 4 2 Maximum Speed BUlfOn Du xa 95 3 DEED 96 4 mee 97 41 Connetion to the VR2 Attendant module 97 4 2 VR2 Attendant Module amp Lighting Module 98 5 Joystick Orientation 6 DPT O SUES nace Chapter 6 Servicing Diagnoistics IOI 1 cds 103 lel INMOGUCTION e TEE
27. TECHNOLOGY CHAPTER 2 INSTALLATION VR2 POWER MODULE CONNECTIONS 7 ES cJ eo 2 SE MOTOR 1 naan MOTOR 2 Brake f Brake ve Brake veS Brake ve Motor ve Motor ve Motor ve Motor ve H 2V 24V v BRAKE 12V 24V FN CIRCUIT BRAKE G BREAKER 1 OV 2 Inhibit 2 ON BOARD CHARGER 1 Batt m 3 OV ACTUATORS Joystick Actuator 1 1 Movement Pin 1 Pin 2 Movement U Forward ve ve Channel Up 2 2 Backward ve Channel Down e9 SK77898 3 VRZ Controt System PG TECHNOLOGY Only use the exact tools as specified For details of automatic crimp tools contact Intech 30 SK77898 3 PG TECHNOLOGY CHAPTER 2 INSTALLATION 5 Wiring 51 General Study the data sheet for the control system to identify The output current ratings and restrictions The connector pin assignments Recommendations for the cross sectional area ratings and materials for wiring are given in the table in section 5 2 These are depend on the application You are responsible for establishing the suitability of the particular wiring arrangement used on the wheelchair PGDT can make general recommendations for wiring for VR2 control systems but PGDT accepts no responsibility for the wiring arrangement us
28. Trip Type 4 Right Motor Disconnected This occurs when the control system detects that the right motor has become disconnected Check the right motor motor connectors and wiring If the trip is still present after the above checks have been made then the Power Module may be defective Refer to Section 5 The VR2 control system may be programmed to exchange the left and right motor outputs In this instance this section will refer to the left motor Consult the wheelchair manufacturer for more details 35 Trip Type 5 Right Motor Wiring Trip This occurs when the control system detects a fault in the wiring to the right motor in particular if motor connection has short circuited to a battery connection Check the right motor connectors and wiring If the trip is still present after the above checks have been made then the Power Module may be defective Refer to Section 5 The VR2 control system may be programmed to exchange the left and right motor SK77898 3 15 VR2 Controt System PG DRIVES TECHNOLOGY outputs In this instance this section will refer to the left motor Consult the wheelchair manufacturer for more details 3 6 Trip 6 Charger Connected This occurs when the control system detects that an off board charger is connected Check that the battery charger is disconnected If the trip is still present after the charger has been disconnected then the Joystick Module may be defective Refer to Section 5
29. You must release the joystick to resume normal operation If you do not release the joystick within five seconds the wheelchair will not be able to move even if you release the joustick and push it again The battery gauge will then flash rapidly You can reset this condition by switching the control system off and on again 2 If you push the joustick before just after you switch the If the battery gauge flashes rapidly then the VR2 has detected a problem somewhere in the wheelchair s electrical system Refer to section 8 5 for details 5 Tips for Using Your Control System 5 Driving General Make sure that the control system is mounted securely and that the joystick position is correct The hand or limb you use to operate the joystick should be supported for example by the wheelchair arm pad Do not use the joystick as the sole support for your hand or limb wheelchair movements and bumps could upset your control 5 2 Driving Technique The control system interprets your joystick movements and produces appropriate movements of your wheelchair You will need very little concentration to control the wheelchair which is especially useful if you are inexperienced One popular technique is to simply point the joystick in the direction you want to go The wheelchair will home in on the direction you push the joystick The further you push the joystick away from the rest position the faster the wheelchair will go Releasing t
30. accept no liability for losses of any kind if the programming of the control system is altered from factory pre set values PGDT accept no liability for losses of any kind if the drive or stability characteristics of the chair are altered without prior notification and discussion with PGDT Chapter 2 section 1 2 wo Charger Interlock The chair manufacturer is responsible for providing a means of preventing the use of the wheelchair while the batteries are being charged PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 2 section 2 2 les SK77898 3 PG TECHNOLOGY IU 2 13 Crimping Defective or poor quality crimps may affect the warranty of the controller PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 2 section 4 1 Wiring General The chair manufacturer is responsible for establishing the suitability of the particular wiring arrangements used on the wheelchair for both normal use and stalled conditions PGDT can make general recommendations for wiring of control systems but PGDT accepts no responsibility or liability for losses of any kind arising from the actual wiring arrangement used The chair manufacturer is responsible for ensuring that only the mating connectors specified by PGDT on the control system s specific data sheet are used to connect to the cont
31. at maximum height Additionally it is required to completely inhibit the tilt function at maximum lift height The VR2 is connected so that Actuator Channel 1 drives the lift rotor and Actuator Channel 2 drives the tilt motor An identical circuit to that of the previous example could be used Programming for the Inhibit 2 Threshold Levels and Inhibit 2 Speed Limit in Band x parameters would also be identical to the previous identical As it is the tilt motor which is connected to Actuator Channel 2 the Actuator Channel 2 Up Inhibit and Actuator Channel 2 Down Inhibit parameters would need to be programmed as follows 66 SK77898 3 PG TECHNOLOGY Actuator Channel 2 Up Inhibit in Inhibit 2 Band 0 no Inhibit in Inhibit 2 Band 3 yes Inhibit in Inhibit 3 Band 0 no Inhibit in Inhibit 3 Band 3 no Actuator Channel 2 Down Inhibit in Inhibit 2 Band 0 no Inhibit in Inhibit 2 Band 3 yes Inhibit in Inhibit 3 Band 0 no Inhibit in Inhibit 3 Band 3 no CHAPTER PROGRAMMING Both Actuator Channel 2 Tilt Up and Down directions will be inhibited when the seat is fully raised i e Inhibit 2 input in Band 3 Application 2 A wheelchair is fitted with a reclining seat It is required to offer a programmable angle of recline to suit different users A potentiometer of maximum value 10KOhm is fitted to the recline mechanism and is connected to the VR2 s Inhibit 2 input The recline motor is driven by the Actuator Channel 1 outp
32. bad connection Check the connections to the left hand motor The left hand motor has a short circuit to a battery connection Contact your service agent The right hand motor has a bad connection Check the connections to the right hand module The right hand motor has a short circuit to a battery connection Contact your service agent The wheelchair is being prevented from driving by an external signal The exact cause will depend on the type of wheelchair you have one possibility is the battery charger is connected A joystick fault is indicated Make sure that the joystick is in the center position before switching on the control system A control system fault is indicated Make sure that all connections are secure The parking brakes have a bad connection Check the parking brake and motor connections Make sure the control system connections are secure An excessive voltage has been applied to the control system This is usually caused by a poor battery connection Check the battery connections A comunication fault is indicated Make sure that joystick cable is securely connected and not damaged l4 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER OPERATION An Actuator trip is indicated If more than one actuator is fitted check which actuator is not working correctly Check the actuator wiring 8 6 Slow or sluggish movement If the wheelchair does not travel at full speed or does not respond quickly enough
33. be conducted an open space Mounting Make sure that all the control system is securely mounted Do not overtighten any securing screws Cables and Connectors e Check all cables and connectors for damage Make sure that all connectors are securely mated Joystick and Gaiter e Check that the joystick is not bent or damaged e Check the thin rubber gaiter or boot around the base of the joystick shaft for damage or splitting Check visually only do not handle the gaiter Check that the joystick returns to the center position when you push and release it Preset Settings Make sure that the control system is using the preset settings Refer to the chapter 3 for detailed instructions Control Systems are always supplied with the settings shown on the relevant data sheet 1 5 Operational Test This test should be carried out on a level floor with at least one meter clear space around the wheelchair e Switch on the control system e Check that the battery gauge remains on or flashes slowly after one second Push the joystick slowly forwards until you hear the parking brakes operate The chair may start to move Immediately release the joystick You must be able to hear each parking brake operate within a few seconds Repeat the test a further three times pushing the joystick slowly backwards 40 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 2 INSTALLATION left and righ
34. between the Power Module and the Joystick Module The cable should be checked for damage and replaced if found to have a fault The Joystick Cable can only be replaced by a person authorized by the wheelchair manufacturer Refer to Section 1 3 for the replacement procedure If the problem persists then either the Power Module or the Joystick Module could be defective Refer to Section 5 313 Inhibit 2 Active This occurs when the Inhibit 2 input is active The Inhibit 2 input is via the INH 2 way connector and is normally associated with speed limit or actuator functions The operation of Inhibit 2 will depend upon the programmed settings and the wheelchair on which it is being used Check all wiring and switches connected to Inhibit 2 If these appear to be in working order then the Power Module may be defective Refer to section 5 314 Inhibit 3 Active This occurs when the Inhibit 3 input is active The Inhibit 3 input is via the 3 way on board charger OBC and is normally associated with this function The operation of Inhibit 3 will depend upon the programmed settings and the wheelchair on which it is being used Check all wiring switches and OBC if fitted connected to Inhibit 3 If these appear to be in working order then the Power Module may be defective Refer to section 5 3 15 Actuator Motor Wiring Trip This occurs when the control system detects a fault in the wiring to either actuator motor Check the motor connectors and
35. polarity with that shown on the specific control system s data sheet Failure to observe this condition could result in a burn hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition while charging is in progress failure to observe this condition could result in a burns hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not disconnect batteries or open circuit the circuit breaker your wheelchair The use of incorrect chargers could damage the batteries wheelchair control system or charger itself or may result in parts overheating creating the potential for burns or even fire PGDT accepts no liability for losses of any kind if the charger is incompatible with the control system see Chapter 2 section 8 any other part of the wheelchair system Chapter section IO Only use the battery charger that has been supplied with 25 Programming Programming should only be conducted by healthcare professionals with in depth knowledge of PGDT electronic control systems Incorrect programming could result in an unsafe set up of a wheelchair PGDT accept no liability for losses of any kind if the programming of the control system is altered from factory pre set values Chapter section Il 26 Joystick Knobs Do not replace the joystick knob with any unauthorized item it may cause h
36. reliability of the control system Chapter 3 section 81 ru Motor Compensation Never exceed the 70 relationship described above The chair manufacturer is responsible for ensuring that the control system is matched to the motor resistance Failure to do this may result in poor control characteristics which in extreme instances can make a chair uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for always ensuring that any replacement motors or gearboxes are fully SK77898 3 PG TECHNOLOGY 2 23 IU 00 06 compatible with the originals that the control system was designed to match Failure to do this may result in poor control characteristics which in extreme instances can make a chair uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Users must not move a control system from one chair type to install it on a different chair type Control systems with different part numbers may have both hardware and software differences to ensure that they are compatible with the electrical and dynamic characteristics of their specific target vehicles The characteristics of one type of control system may not be compatible with a different unauthorized chair Failure to observe this warning could
37. the joystick from the center position the faster the wheelchair will move When you release the joystick the brakes are automatically applied If the wheelchair is fitted with actuators the joystick can also be used to select and move actuators refer to section 3 8 for more details 3 4 Maximum Speed Profile Indicator This is a gauge which shows the maximum speed setting for the wheelchair or if the control system is programmed for drive profile operation the selected drive profile For more information on drive profiles refer to Chapter 3 This gauge also indicates if the speed of the wheelchair is being limited or if the control system is locked refer to sections 8 8 and 8 9 3 41 Maximum Speed Indicator This is a gauge that shows the maximum speed setting of the wheelchair There are five speed settings step 1 is the lowest speed and step 5 is the highest speed For details of how to change the maximum speed setting see sections 3 6 and 3 7 3 4 2 Profile Indicator 6 SK77898 3 PG TECHNOLOGY CHAPTER OPERATION This is an indicator that shows the selected drive profile There may be up to 5 drive profiles available this depends on the programming of the control system refer to Chapter 3 For details of how to select drive profiles see sections 3 6 and 3 7 35 Horn Button The horn will sound while this button is depressed 3 6 Speed Profile Decrease Button This button decreases the maximum speed
38. the loop area of the wiring is minimized Route the positive and negative wires to each motor together Route the battery positive and negative wires together Where possible route the battery and motor looms together Secure the motor and battery looms to the wheelchair frame over as much of their length as is practical Immunity The VR2 control system has been stringently tested for susceptibility to electromagnetic radiation over the frequency range 26 MHz to 1 GHz The test was conducted on a typical wheelchair installation and passed the requirements of EN12184 Follow the recommendations in section 13 to ensure maximum immunity to electromagnetic radiation 42 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 2 INSTALLATION I3 Battery Gauge For optimum accuracy of the battery gauge and low battery indicator the control system should be programmed with the approximate nominal capacity of the wheelchair battery However accuracy is not greatly affected if the programmed type and capacity do not closely match the battery The most important factor affecting the accuracy of the battery gauge is the resistance of the cable and connections between the battery and the control system The control system must be matched approximately to the cable resistance of your wheelchair to make the battery gauge accurate The parameter for adjustment is Cable Resistance refer to Chapter 3 for details on programming As a guide 2 5 mm cable h
39. this condition Do not replace the joystick knob with any unauthorized I3 Servicing All repairs and servicing must be carried out by authorized service personnel Opening or making any unauthorized adjustments or modifications to the control system or its components will invalidate any warranty and may result in hazards to yourself or other people is strictly forbidden It is possible to replace the cable and the joystick by following instructions laid down by PG Drives Technology Refer to Chapter 6 Servicing PGDT accept no liability for losses of any kind arising from unauthorized opening adjustment or modifications to the VRe control system If the control system is damaged in any way or if internal damage may have occurred through impact or dropping have the product checked by qualified personnel before operating PGDT accepts no liability for losses of any kind arising from failure to comply with this condition SK77898 3 I9 VRZ Controt System PG DRIVES TECHNOLOGY 4 Warranty The VR2 control system is covered by a warranty period defined by the wheelchair manufacturer For details of the warranty period please contact your service agent The warranty will be void if the VR2 control system has Not been used in accordance with the VR2 control system Technical Manual 5 77898 Been subject to misuse or abuse Been modified or repaired by non authorized persons accordance with VRe Technical
40. to Section 3 At this point Check all connections e Repeat the procedure Should the procedure fail twice try a new cable 108 SK77898 3 PG DRIVES TECHNOLOGY 6 Servicinc amp Diacnostics 1 4 Keypad Replacement Disconnect Joystick Cable from the Power Module Gently lift the top corner of the keypad with a scalpel Remove the damaged keypad Ensure surface area is clear clean and free of adhesive Place the new keypad into position ensuring there are no gaps around the edges and press firmly to stick Re connect Joystick Cable to the Power Module Turn control system on the and check the operation of the buttons If trouble is experienced activating any of the buttons ensure that the pad is correctly positioned and firmly adhered to the joystick module s surface Joystick Module s resistance to moisture ingress Q Incorrect fitting of the Keypad could seriously affect the SK77898 3 109 VR2 Controt System PG TECHNOLOGY 2 Diagnostics Introduction The primary objective of this section is to assist service personnel in finding the likely area of a detected fault within the whole wheelchair electrical system It is important to realize that even though the control system is signaling fault it may not be the control system itself that is defective This is because the control system is able to detect problems in other electrical components motors batteries solenoid brakes etc
41. use the on off button to stop the wheelchair unless there is an emergency If you do you may shorten the life of the wheelchair drive components The battery gauge shows you that the wheelchair is switched on It also indicates the operating status of the wheelchair Details are given in section 8 0 SK77898 3 5 VRZ Controt System PG DRIVES TECHNOLOGY 3 2 Locking Unlocking the Wheelchair The VR2 control system can be locked to prevent unauthorized use The locking method is via a sequence of key presses and joystick movements as detailed below To lock the wheelchair While the control system is switched on depress and hold the on off button e After 1 second the control system will beep Now release the on off button Deflect the joystick forwards until the control system beeps Deflect the joystick in reverse until the control system beeps Release the joystick there will be a long beep The wheelchair is now locked To unlock the wheelchair Use the on off button to switch the control system on The maximum speed profile indicator will be rippling up and down Deflect the joystick forwards until the control system beeps e Deflect the joystick in reverse until the control system beeps Release the joystick there will be a long beep The wheelchair is now unlocked 33 Joustick The primary function of the joystick is to control the speed and direction of the wheelchair The further you push
42. wiring If the trip is still present after the above checks have been made then the Power SK77898 3 17 VRe Controt System PG DRIVES TECHNOLOGY Module may be defective Refer to Section 5 316 Current Limit Active This occurs when the control system operates above the Current Limit Threshold for a period of time greater than the Current Limit Time It has been designed to notify the Healthcare Technician that the control system has operated outside of its programmed range 317 High Temperature This occurs when the control system reaches its Temperature Threshold and thus becomes to hot The controller will not allow drive until the controller to cooled down An entry is made in the system log each time the controller gets too hot and goes out of drive SK77898 3 PG DRIVES TECHNOLOGY 6 Servicinc amp Diagnostics 4 Basic Tests After a repair has been completed the following tests should be carried out These are minimum recommendations depending on the nature of the original trip additional tests may be required responsibility of the service person s to perform other tests relevant to the original trip and wheelchair type Refer to the wheelchair s Technical Manual for exact information of other tests PGDT accept no liability for losses of any kind arising from failure to carry out of the described tests or from not carrying out additional relevant tests These tests are a minimum recommen
43. 0W or 21W T V Germany require that 21W lamps be used for the indicators 43 Indicator Fault Detect Sets whether the VR2 L will detect defective turn indicator lamps You can set this parameter to On or Off On means the VR2 L will detect defective lamps and signal this condition to the user by flashing the relevant turn indicator LED on the VR2 L at a faster rate Off means that defective lamps will not be detected If the wheelchair has just one turn indicator per side this parameter should be set to Off TUV Germany require that indicator lamp faults are detected and the condition signalled to the user SK77898 3 89 VRe Controt System PG DRIVES TECHNOLOGY 90 SK77898 3 PG DRIVES TECHNOLOGY SK77898 3 CHAPTER 5 ATTENDANT P CHAPTER 5 ATTENDANT MODULE SYSTEM 9I VRe Controt System PG DRIVES TECHNOLOGY 9e SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 5 ATTENDANT l Introduction This section of the manual describes the operation installation and programming differences generated by the VR2 attendant module The VR2 attendant system comprises of VR2 DM A VR2 joystick module a attendant intermediate cable and a VR2 power module VR2 LM This allows the drive and actuator functions of the wheelchair to be controlled either by the occupant or by an attendant from another location on the wheelchair Controls Refer to the following illustration for the dual module control layout DUAL MODULE USER C
44. 37 Trip Type 7 Possible Joystick Trip This occurs if the control systern detects a problern within its own joystick or there is a communications error between the Joystick Module and Power Module The joystick can only be replaced by person authorized by the wheelchair manufacturer 7100 Loss of comms to the joystick check the joystick cable and if you have authorization the joystick ribbon cable connections and mating sockets 7101 Loss of comms to the joystick check the joystick cable and if you have authorization the joystick ribbon cable connections and mating sockets 7102 Loss of power to the joystick check the joystick cable and if you have authorization the joystick ribbon cable connections and mating sockets 7103 Internal trip if you have authorization check the joystick ribbon cable connections and mating sockets Ensure the cable is connected correctly to both the joystick and the PCB 7104 Internal trip if you have authorization check the joystick ribbon cable connections and mating sockets Ensure the cable is connected correctly to both the joystick and the PCB Refer to Section 1 2 for details on removal fitting and calibration of the joystick If the trip is still present after the appropriate checks have been made then the Joystick Module may be defective Refer to Section 5 38 Trip Type 8 Possible Control System Trip This occurs if the control system detects a problern within itself The control s
45. A PG DRIVES TECHNOLOGY VRe SERIES WHEELCHAIR CONTROL SYSTEM OPERATION INSTALLATION amp PROGRAMMING SK77898 3 VRe Controt System PG TECHNOLOGY The VR2 Control System is covered By Patent Nos UK 2 381 675 B 2 390 943 B US 6 593 711 B2 PG Drives Technology 2007 All rights reserved This manual is furnished under copyright and may only be used in accordance with the terms laid out by PG Drives Technology The information in this manual is furnished for informational use only is subject to change without notice and should not be construed as a commitment by PG Drives Technology Except as permitted by such terms no part of this manual may be reproduced stored in a retrieval system or transmitted in any form or be any means electronic mechanical recording or otherwise without the prior written permission of PG Drives Technology 4 44 0 1425 271444 SK77898 3 PG TECHNOLOGY VRe Controt System TABLE OF CONTENTS About this manual cscsssescssssssssessssessssesssseessseessseessseeessseeseseessseesssseessnersaseerenerssaeessseesaeeseseessnes xii ICONS M xii Chapter Operation IntPOGQUCtLIOTi 3 e General 2 1 Handling 2 2 Operating Condltloris cerco irecieva ek trt tk EV e e EE
46. Chapter 1 section 8 5 for further details 3 LEDs If 3 LEDs on the maximum speed indicator are flashing then there is an internal trip in the dual module The dual module must be disconnected and returned to PG Drives Technology 8 bars will be flashing on the VRe but it can be reset by disconnecting the dual module and switching the control system off and on again If 4 LEDs on the maximum speed indicator are flashing then the dual module joystick has caused a trip Ensure the joystick was not displaced when powering the control system up If the joystick is centered and the trip still registers then the joystick is defective and the dual module must be disconnected and returned to PG Drives Technology 4 LEDs L 7 bars will be flashing on the VRe but it can be reset by disconnecting the dual module and switching the control system off and on again 5 LEDs If 5 LEDs on the maximum speed indicator are flashing then there is a communications trip Ensure the cable connections between the dual module and the VR2 are secure If the connections are secure and the trip still registers then the cable must be replaced 8 bars will be flashing on the VRe but it can be reset by disconneting the dual module and switching the control system off and on again Opening or making any unauthorized adjustments or modifications to the control system or its components will invalidate any warranty and may result in hazards to you
47. Failure to observe this warning could result in an unsafe set up for the wheelchair user and may create a fire hazard depending on the motors wiring connectors and circuit breakers installed on the unauthorized chair PGDT accepts no liability for losses of any kind arising from failure to comply with this condition 7 Batteries The control system is designed for operation with 24 V lead acid batteries The batteries may be wet or gel electrolyte types Contact PGDT for advice on battery selection SK77898 3 35 VRZ Controt System PG TECHNOLOGY 8 Battery Charging The VR2 control systems supports both on board and off board methods of battery charging While the battery is being charged the VR2 s TruCharge display will continuously ripple or step upwards The two methods of charging are described in the following sections 8 Off board Charging All VR2 control systems have a battery charging socket mounted on their front face for connection to an off board charger The maximum permissible charging current is 12A rms Only chargers fitted with Neutrik NC3MX plugs should be connected into the VR2 control system The pin connections of the socket are as below Connection Battery Positve Inhibit Battery Negative To prevent the wheelchair from driving while the charger is connected pin 3 must be linked to pin 2 inside the charger s plug Always use an off board charger fitted with a Neutrik NC3MX plug Fai
48. M A JSM A L SK77898 3 PG TECHNOLOGY CHAPTER 2 INSTALLATION 2 Immobilizing the Wheelchair e l Prevention of Unauthorized Use T V requires that the wheelchair must have a means of preventing unauthorized use This can be implemented electronically using the button and joystick sequence detailed in Chapter 1 section 3 2 This method of locking has been chosen to prevent problems arising from lost keys Alternatively an external switch which interrupts the battery or solenoid brake circuit or provides a drive inhibit can be fitted 22 Charger Interlock ISO 7176 14 requires you to provide a means of preventing the use of the wheelchair while the batteries are being charged The charger socket and charger connection fitted to the PG Drives Technology VR2 control systems include an inhibit facility Refer to section 9 for details Contact PG Drives Technology if you need advice of preventing the use of the wheelchair while the batteries are being charged PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for providing a means SK77898 3 25 VR2 Controt System PG DRIVES TECHNOLOGY 3 Mounting Joustick Module The VR2 Joystick Module has two holes for mounting on the underside The holes are tapped with an M5 thread allowing for a maximum screw penetration depth of 8mm 5 167 JOYSTICK MOUNTING H
49. OLE POSITIONS 42mm 1 65 Nom 40 0mm 1 57 View of underside 3 11 Orientation The control system is not sensitive to mounting orientation except where it is exposed to water or dust In this situation the control system must be mounted with the joystick shaft pointing vertically upwards to maintain resistance to IPx4 as stated on the data sheet If you want to use any other mounting attitudes then contact PGDT for advice 3 1 2 Position Do not mount the control system in a position which would expose it to excessive shock or vibration The VR2 control system is designed to withstand levels of shock and vibration experienced when mounted to the chassis of a wheelchair and has been tested in accordance with BS EN 60068 2 29 1993 and BS2011 part 2 1Fd 1973 for Bump and Random Vibration respectively Direct impacts onto the control system should be avoided 3 2 Power Module Mounting Fix the Power Module to the wheelchair chassis using suitable M5 or equivalent hardware 3 2 1 Orientation The function of the Power Module is not sensitive to mounting orientation however it should be mounted in such a way that water cannot enter and remain in the connector recesses It is recommended that the unit is not mounted with the connectors uppermost The Power Module has an IPX4 dust and water resistance rating 26 SK77898 3 PG TECHNOLOGY CHAPTER 2 INSTALLATION POWER MODULE MOUNTING HOLE POSI
50. ONTROLS Control Panel Joystick Knob Option Joystick Control Panel Details SK77898 3 93 VRZ Controt System PG DRIVES TECHNOLOGY 2 1 Joustick This controls the speed and direction of the wheelchair Push the joystick in the direction you wish to go The further you push it the faster the speed Releasing the joystick stops the wheelchair and automatically applies the brakes When in actuator control mode pushing the joystick left and right will toggle selection between the available actuators Operating the joystick in the forward and reverse directions will adjust the selected actuator DUAL MODULE CONTROLS Control Button and Indicator Actuator Button Speed Indicator Maximum Speed Button 2 2 Control Button and Indicator Control Indicator This shows which joystick has control If the red wheelchair light is on the wheelchair occupant s joystick has control If the green attendant light is on the attendant module systems joystick has control Control Button This transfers drive control of the wheelchair between the VR2 and the attendant module system 23 Actuator Button and LEDs All VR2 attendant module system s have an actuator button fitted as standard If the VR2 is programmed with O actuators then this button has no function However if VR2 is programmed with lor 2 actuators the operation of this button will 94 SK77898 3 DRIVES TECHNOLOGY CHAPTER 5 ATTENDANT
51. Speed settings 2 3 and 4 will interpolate linearly between 20 and 80 Turn Acceleration at step 2 35 Turn Acceleration at step 3 50 Turn Acceleration at step 4 65 Minimum Turn Deceleration Adjusts the minimum value for turning deceleration of the wheelchair Adjustable in increments of 196 of the Tum Deceleration value This percentage of the Tum Deceleration value occurs when the VR2 speed setting is at 1 See following example Turn Deceleration 80 and Minimum Turn Deceleration 25 Turn Deceleration at step 1 25 of 80 20 Speed settings 2 3 and 4 will interpolate linearly between 20 and 80 Turn Deceleration at step 2 35 Turn Deceleration at step 3 50 Turn Deceleration at step 4 65 SK77898 3 53 VRZ Controt System PG DRIVES TECHNOLOGY 54 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING 3 Actuator Parameters Number of Actuators Sets the number of actuators to be connected to the VR2 control system This value must be set correctly in order to get the most informative and user friendly method of actuator control It is adjustable between 0 2 actuators in steps of 1 3 2 Actuator End Force Adjusts the operating force of actuator channel 1 The reason this is programmable is to provide an automatic shut off of an actuator motor at the end position The value is adjustable between 1 and 5 A higher value gives a higher force The value should be chosen so that the
52. TIONS 161 0 165 0mm 6 34 6 49 3 2 2 Position The Power Module must be mounted in a position where it is not exposed to conditions of water or dust above those specified in 1507176 9 The Power Module is designed to withstand levels of shock and vibration experienced when mounted to the chassis of a wheelchair The Power Module has been tested in accordance with IEC60068 2 29 and 5201 1 part2 1Fd 1973 for Bump and Random Vibration respectively Direct impacts onto the unit should be avoided The Power Module has excellent thermal performance but to improve this further it may be secured against a metal part of the wheelchair chassis To provide even better thermal performance a non silicone thermally conductive paste or pad may be applied between the Power Module and the wheelchair chassis Mount the control system in a position allowing a free flow of air around the case Contact PGDT if you need further advice 3 2 3 Cables The cables to the Power Module must be routed and secured in such a way as to prevent damage to them for example by cutting or crushing SK77898 3 27 VRZ Controt System PG DRIVES TECHNOLOGY 4 Connections There are 8 generic VR2 Power Module configurations Each Power Module includes a Joystick connector a battery connector 2 motor connectors left and Right an on board charger an individual inhibit input and up to 2 actuator control connections C On Powe
53. Y 7 Safety Checks The electronic circuits in your control system have been designed to be extremely safe and reliable The on board microcomputer carries out safety checks at up to 100 times per second To supplement this safety monitoring you should carry out the following periodic checks If the control system fails any of these checks do not use the wheelchair and contact your service agent 7 Daily Checks Joystick With the control system switched off check that the joystick is not bent or damaged and that it returns to the center when you push and release it If there is a problem do not continue with the safety checks and contact your service agent 72 Weekly Checks Solenoid parking brake This test should be carried out on a level floor with at least one meter clear space around the wheelchair Switch on the control system e Check that the battery gauge remains on or flashes slowly after one second Push the joystick slowly forwards until you hear the parking brakes operate The chair may start to move Immediately release the joystick You must be able to hear each parking brake operate within a few seconds Repeat the test a further three times pushing the joystick slowly backwards left and right Connectors Make sure that all connectors are securely mated Cables Check the condition of all cables and connectors for damage Joystick gaiter Check the thin rubber gaiter or boot around the bas
54. ached step 5 The next depression then brings the speed back down to step 1 If the control system is programmed for drive profile operation then the attendant module system speed adjuster button will only adjust the speed within the selected profile Changing between drive profiles can only be achieved using the VR2 SK77898 3 95 VR2 Controt System PG TECHNOLOGY 3 Installation The dual module has four holes for mounting on the underside Refer to the following illustration for details of the hole positions The holes are tapped with an M5 thread to a depth of 10mm 3 8 The dual module is not sensitive to mounting orientation except where it is exposed to water or dust In this situation the control system must be mounted with the joystick shaft pointing vertically upwards in order to maintain the attendant module s IPx4 rating Do not mount the dual module in a position which would expose it to excessive shock or vibration The dual module is designed to withstand levels of shock and vibration experienced when mounted to the chassis of a wheelchair and has been tested in accordance with 852011 part 2 1Eb 1987 and BS2011 part 2 1Fd 1973 for Bump and Random Vibration respectively Direct impacts onto the attendant module system should be avoided Contact PGDT if you need further advice When the dual module has been installed and connected the joustick may need reorientatoion Refer to section 5 of this part of the
55. actuator can move under its heaviest load condition but will shut off automatically when stalled at the end stop 33 Actuator Current Limit Time Out This adjusts the length of time the control system will apply current to the actuator motor once it has reached its End Force current limit It is adjustable between 50ms and 500ms in steps of 10ms 3 4 Actuator 2 End Force Adjusts the operating force of actuator channel 2 The reason this is programmable is to provide an automatic shut off of an actuator motor at the end position The value is adjustable between 1 and 5 A higher value gives a higher force The value should be chosen so that the actuator can move under its heaviest load condition but will shut off automatically when stalled at the end stop 35 Actuator 2 Current Limit Time Out This adjusts the length of time the control system will apply current to the actuator motor once it has reached its End Force current limit It is adjustable between 50ms and 500ms in steps of 10ms 3 6 Actuator Selection with Joystick This parameter determines whether selection between different actuator channels can be made with left right movements of the joystick You can set between on and off On Means that selection between actuator channels can be made with the joystick and the actuator buttons Off Means that only the actuator buttons can be used to select between actuator channels The parameter is only applicable if tne Number of
56. al your batteries may be worn out 9 How to Read a TruCharge Battery Gauge If the battery gauge shows red yellow and green the batteries are charged If the battery gauges show just red and yellow then you should charge the batteries as soon as you can If the battery gauge shows just red either steady or flashing slowly then you should charge the batteries immediately discharged Failure to comply with this condition may leave the user stranded in an unsafe position such as in the middle of a road PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not operate the control system if the battery is nearly 16 SK77898 3 PG TECHNOLOGY CHAPTER OPERATION IO Battery Charging To charge the wheelchair batteries connect the charger plug into the battery charging socket on the VR2 You will not be able to drive the wheelchair when the charger is connected To connect the charger plug ensure the single pin is at the bottom as shown in the following illustration then offer the charger plug to the VR2 in a horizontal orientation The molded guide on the VR2 will help you to locate the plug Ensure the plug is pushed fully in position VR2 CHARGER CONNECTION Charger Plug Single Pin to bottom Always use an off board charger fitted with a Neutrik NC3MX plug Failure to observe these conditions could result in poor contact resistance in the charger co
57. any PGDT accept no liability for losses of any kind arising from component of a control system SK77898 3 lel VRe Controt System PG DRIVES TECHNOLOGY lee SK77898 3 PG TECHNOLOGY 7 WARNING SUMMARY H CHAPTER 7 WARNING SUMMARY SK77898 3 lea VRZ Controt System PG DRIVES TECHNOLOGY 1 4 SK77898 3 PG TECHNOLOGY CuaPreR 7 WARNING SUMMARY Introduction This section summarizes all of the very important warnings that appear throughout the text of this manual Do not install maintain or operate the VR2 control system without reading understanding and observing the following warnings Failure to observe these warnings could result in UNSAFE CONDITIONS for the user of a wheelchair or affect the reliability of tne control system PG Drives Technology accepts no liability for losses of any kind arising from failure to comply with any of the conditions in the warnings listed below Failure to observe these warnings will invalidate the VR2 warranty The wheelchair manufacturer may wish to use this section as a check list to ensure the risk areas identified below have been adaressed within their own wheelchair designs and associated documentation Warnings e Driving Technique safely PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter section 5 2 The wheelchair user must be capable of driving a wheelchair 22 H
58. ard and reverse acceleration of the wheelchair Adjustable in increments of 1 of the Acceleration value This percentage of the Acceleration value occurs when the VR2 speed setting is at 1 See following example Acceleration 2 80 and Minimum Acceleration 2596 Acceleration at step 1 25 of 80 20 Speed settings 2 3 and 4 will interpolate linearly between 20 and 80 Acceleration at step 2 35 Acceleration at step 3 50 Acceleration at step 4 65 Minimum Deceleration Adjusts the minimum value for forward and reverse deceleration of the wheelchair Adjustable in increments of 196 of the Deceleration value 52 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING This percentage of the Deceleration value occurs when the VR2 speed setting is at 1 See following example Deceleration 80 and Minimum Deceleration 2596 Deceleration at step 1 2596 of 80 20 Speed settings 2 3 and 4 will interpolate linearly between 20 and 80 Deceleration at step 2 35 Deceleration at step 3 50 Deceleration at step 4 65 el Minimum Turn Acceleration Adjusts the minimum value for turning acceleration of the wheelchair Adjustable in increments of 196 of the Tum Acceleration value This percentage of the Turn Acceleration value occurs when the VR2 speed setting is at 1 See following example Turn Acceleration 80 and Minimum Turn Acceleration 2596 Turn Acceleration at step 1 25 of 80 20
59. as a resistance of about 8 millionms per meter 4 mm cable has about 5 millionms per meter Circuit breakers and connectors usually account for about 15 millionms These values will be chosen at the time the control system is being specified by the wheelchair manufacturer Like the preset acceleration rates once the values for the battery are decided they are programmed into control systems during manufacture and should never need changing Control systems are set for a nominal 40amp hour battery 40 millionm cable resistance If you need advice contact PGDT SK77898 3 43 VRZ Controt System PG DRIVES TECHNOLOGY 44 SK77898 3 PG TECHNOLOGY SK77898 3 CHAPTER PROGRAMMING P CHAPTER 3 PROGRAMMING 45 VRZ Controt System PG DRIVES TECHNOLOGY 46 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING Introduction This chapter gives an overview of the programmable parameters within the VR2 control system The VR2 can be programmed with a PP1 handheld programmer or a PG Drives Technology PC Programmer This chapter does not give details of how to make adjustments for these details please refer to the relevant documentation for the programmer you are using professionals with in depth knowledge of PGDT control systems Incorrect programming could result in an unsafe set up of a wheelchair for a user PGDT accept no responsibility for losses of any kind if the programming of the contr
60. azardous operation PGDT accepts no liability for losses Chapter section Ie Servicing PGDT accept no liability for losses of any kind arising from unauthorized opening adjustment or modifications to the VR2 control system If the control system is damaged in any way if internal SK77898 3 127 VRZ Controt System PG DRIVES TECHNOLOGY damage may have occurred through impact or dropping have the product checked by qualified personnel before operating PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter section Warranty The warranty will be void if the VRe has not been used accordance with VRe Technical Manual SK77898 the has been subject to misuse or abuse or if the VRe has been modified or repaired by unauthorized persons Chapter section 14 ru 0 Program Settings It is the manufacturers responsibility to program the control system to suit the vehicle model and ensure safe operation in compliance with relevant legal requirements over the whole of the operating range PGDT accepts no liability for losses of any kind due incorrect programming or the VRe Control System Refer to Chapter 3 for programming details Programming should only be conducted by healthcare professionals with in depth knowledge of PGDT electronic control systems Incorrect programming could result in an unsafe set up of a wheelchair for the user PGDT
61. azards reliable and each unit is rigorously tested during manufacture the possibility of a system malfunction always exists however small the probability Under some conditions of system malfunction the control system must for safety reasons stop the chair instantaneously If there is any possibility of the user falling out of the chair as a result of a sudden braking action it is imperative that a restraining device such as a seat belt is supplied with the wheelchair and that it is in use at all times when the wheelchair is in motion PGDT accept no liability for losses of any kind arising from the unexpected stopping of the wheelchair or from the improper use of the wheelchair or control system Although the VR2 control system is designed to be extremelu SK77898 3 le5 VRZ Controt System PG DRIVES TECHNOLOGY Do not operate the control system if the chair behaves erratically or shows abnormal signs of heating sparks or smoke Turn the control system off at once and consult your service agent PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Electronic equipment can be affected by Electro Magnetic Interference EMI Such interference may be generated by radio stations TV stations other radio transmitters and cellular phones If the chair exhibits erratic behavior due to EMI turn the control system off immediately and consult your service agent PGDT accepts no liability fo
62. ctudiorEnd Stop DelectiOn rcr et roiv eret e EE 56 3 83 ENA STOO re oca lai ta 56 4 Operation Parameters 57 dea cR RR Rote gts 57 4 2 JOYSTICK IDIOW tutus domed tert a ce 57 IAVEM eset 57 2 57 4 5 VOlUITIG re lator 57 4 6 Speed Adjustment while Driving 57 5 Battery Pararrieters uenis 59 54 Battery Flash nicer unen pcd betae 59 5 2 lt met aeania FRI ER RYE 59 5 3 Ferdi RI 59 5 4 LOW BOltery sarsii en tmd re o mc cendo ecc mv e t a 59 55 Low Voltage QUI rettet seen E Pl eh 59 5 0 OW E 59 VI SK77898 3 PG DRIVES TECHNOLOGY VRe Controt System 6 Inhibit 5 6 6 1 Inhibit 2 Threshold Level 61 6 2 lnhibit 2 Speed Limit iri BONG usce cosas stimuler e ii 61 6 39 nbibit 2 ODOIOITIODI iiie certos rettet iren Y rr n e RE 62 6 4 Inhibit 2 rota FECE LOCI EUCH aE 62 0 5 eiue EIE 62 6 6 nhibit 3 Thre
63. current foldback when the control system is at the Current Foldback Threshold 74 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER PROGRAMMING 8 2 Motor Compensation This matches the VR2 to suit different motor types in order to achieve optimal performance and drive control This value should be set in accordance with the armature resistance of the motor and all cables and connectors between the VR2 and the motor The value is set in milli Ohms A recommended value is e 70 of the armature resistance cables and connectors Motor manufacturers should be able to supply figures for armature resistance and cable and connectors may typically be 40mO Example Motor has armature resistance of 200m Cables and connectors are 40mQ Set Motor Compensation to 0 7 x 200 40 170mQ Never exceed the 70 relationship described above The chair manufacturer is responsible for ensuring that the control system is matched to the motor resistance Failure to do this may result in poor control characteristics which in extreme instances can make a chair uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for always ensuring that any replacement motor or gearbox is fully compatible with the original control system Failure to do this may result in poor control characteristics which in extreme instances can make a cha
64. d below For further details on programming refer to Chapter 3 Seat Reversal can be set to On or Off ON Connecting the Inhibit 2 input to OV will reverse the motors forward direction Motor direction and axes changes as normal and the Front Wheel Drive Rate function is used OFF Seat Reversal has no effect 6 6 Inhibit 3 Threshold Level Inhibit 3 has 4 possible input states known as bands Each band corresponds to a range of electrical resistance connected to the input The range or size of each band is programmable via three parameters Inhibit 3 Lower Level Threshold Inhibit 3 Middle Level Threshold and Inhibit 3 Upper Level Threshold The diagram in section 6 1 shows the concept 62 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING 100 corresponds to a resistance of 10KOhm or greater including an open circuit on pin 2 of Inhibit 3 0 corresponds to a short circuit between pins 2 and 3 of Inhibit 3 Each of the Level Threshold parameters can be set to a value of 0 to 100 in steps of 1 meaning the range of each band is programmable This allows for versatile programming of drive inhibit speed limit and actuator inhibit conditions from just one input For details of drive inhibit and speed limit programming refer to section 6 7 For details of actuator inhibit programming refer to section 6 13 67 Inhibit 3 Speed Limit in Band x This section must be read in conjunction with section 6 6 There are 4
65. dation only It is the restraining device such as a seat belt should always be used PGDT accepts liability for losses of any kind arising from failure to comply with this condition These tests should be conducted in an open space and a 41 General Inspection Make sure all connectors are securely mated Check the condition of all cables and connectors for damage e Check the thin rubber gaiter or boot around the base of the joystick shaft for damage Check visually only do not handle the gaiter Make sure that all components of the control system are securely mounted Donotovertighten any securing screws Brake Test These tests should be carried out on a level floor with at least one meter clear space around the wheelchair Switch on the control system Checkthe TruCharge display remains on or flashes slowly after one second e Push the joystick slowly forwards until you hear the parking brakes operate The wheelchair may start to move Immediately release the joystick You must be able to hear each parking brake operate within 2 seconds Repeat the test a further three times pushing the joystick slowly backwards left and right 43 Drive Test With the maximum speed control in the minimum position drive the wheelchair in all SK77898 3 9 VRZ Controt System PG TECHNOLOGY directions ensuring the drive is comfortable and easy to control for the user Repeat the above but
66. ded to let you know how much charge is left in your batteries The best way for you to use the gauge is to learn how it behaves as you drive the wheelchair Like the fuel gauge in a car it is not completely accurate but it will help you avoid running out of fuel The battery gauge works in the following way When you switch on the control system the battery gauge shows an estimate of the remaining battery charge The battery gauge gives you a more accurate reading about a minute after you start driving the wheelchair When you replace worn out batteries fit the type recommended by the wheelchair manufacturer If you use another type the battery gauge may be inaccurate The amount of charge in your batteries depends on a number of factors including the way you use your wheelchair the temperature of the batteries their age and the way they are made These factors will affect the distance you can travel in your wheelchair All wheelchair batteries will gradually lose their capacity as they age The most important factor that reduces the life of your batteries is the amount of charge you take from the batteries before you recharge them Battery life is also reduced by the number of times you charge and discharge the batteries To make your batteries last longer do not allow them to become completely flat Always recharge your batteries promptly after they are discharged If your battery gauge reading seems to fall more quickly than usu
67. differ Refer to the relevant section below 23 1 Wheelchairs with One Actuator Depressing the actuator button once will enter actuator adjustment mode This will be indicated by the illumination of both actuator LEDs Actuator adjustment can then be made by deflecting the joystick forwards and backwards To re enter drive mode depress either the actuator button or the speed button 2 3 2 Wheelchairs with Two Actuators Depressing the actuator button will enter actuator adjustment mode Depressing the button once illuminates the LEFT LED and deflection of the joystick forwards or backwards will adjust the actuator connected to that channel Selection between the two actuators is achieved by deflecting the joystick to the left and right As the actuator selected changes then so will the LED which illuminates LEFT for actuator 1 and RIGHT for actuator 2 To re enter drive mode depress either the actuator button or the speed button 2 4 Maximum Speed Button and Indicator 2 4 1 Maximum Speed Indicator This shows the maximum speed setting for the wheelchair when the attendant module system has control There are five settings setting 1 is the lowest speed and setting 5 is the highest speed The speed setting is changed with the speed button 24 2 Maximum Speed Button This sets the maximum speed of the wheelchair when the attendant module system has control Depressing the button increases the controllers maximum speed by one step until it has re
68. different drive profile selections can be made 58 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING 5 Battery Parameters 5 Low Battery Flash Level This parameter sets the point at which the VR2 s TruCharge battery gauge starts to flash slowly to warn of a low battery condition Adjustable between 0 and 10 in steps of 1 This corresponds to the number of bars shown on the battery gauge For example if this value is set to 2 then the flashing will occur when the gauge drops to 2 bars 52 Cable Resistance This parameter should be set to the total value of the electrical resistance of wires between the batteries and the VR2 body This parameter ensures the TruCharge battery gauge gives an accurate reading under all driving conditions Adjustable between 0 and 255m steps IMQ The value should take into account the electrical resistance in both the positive and negative connections The battery wires in the VR2 cable have a typical electrical resistance of 4 metre Therefore if the VR2 has 1 3m cable the Cable Resistance setting must be at least 1 3 x 4 6m o x 2 12mQ To this value you must also add the resistance of the wheelchair wiring between the batteries and the VR2 connectors 53 Calibration Factor This allows further fine calibration of the TruCharge battery gauge This is normally set at the factory and should not need further adjustment 5 44 Low Battery Alarm This
69. e of the joystick shaft for damage or splitting Check visually only do not handle the gaiter Mounting Make sure that all the components of the control system are securely mounted Do not overtighten any securing screws 73 Servicing To ensure continued satisfactory service we suggest you have your wheelchair and control system inspected by your service agent after a period of 1 year from commencement of service Contact your service agent for details when the inspection is due le SK77898 3 PG TECHNOLOGY CHAPTER OPERATION 8 Control System Status indication The battery gauge and maximum speed profile indicator show the status of the control system A number of supposedly defective control systems returned to us are subsequently found to operate correctly This indicates that many reported faults are due to wheelchair problems rather than the control system 8 Battery Gauge is Steady This indicates that all is well 8 2 Battery Gauge Flashes Slowly The control system is functioning correctly but you should charge the battery as soon as possible 83 Battery Gauge Steps Up The wheelchair batteries are being charged You will not be able to drive the wheelchair until the charger is disconnected and you have switched the control system off and on again 8 4 Battery Gauge Flashes Rapidly even with the joystick released The control system safety circuits have operated and the control system has been
70. ector from damage to or failure of the wheelchair lighting system including any associated wiring It is the responsibility of the wheelchair manufacturer to ensure that the lighting system wiring complies with all relevant standards Chapter 4 section 3 4 PGDT accepts no liability for losses of any kind arising 2 27 Servicing Introduction manufacturer s permission will invalidate the control system s warranty PGDT accepts no liability for losses of any kind if the procedure and safety guidelines are not followed These operations should only be carried out by a trained Healthcare Technician Chapter 6 section 111 Any replacement work carried out without the wheelchair 2 28 Diagnostics Introduction professionals with in depth knowledge of PGDT electronic controllers An incorrect or badly effected repair could result in an unsafe set up of a wheelchair PGDT accept no liability for losses of any kind arising from an incorrect or badly effected repair Chapter 6 section 2 1 Diagnostics should only be conducted by healthcare 229 Batteries Discharge Very Quickly capacity Therefore if the temperature is lower than normal the wheelchair s range will be reduced In this situation the TruCharge battery gauge still gives an accurate state of The ambient temperature has a significant effect on battery SK77898 3 PG TECHNOLOGY 2 30 charge reading Chapter 6 section 2 4 5
71. ed Make sure that the connectors you use are reliable under all operating conditions and correctly wired with no short circuits Do not use unsuitable components it may result in poor wheelchair reliability suitability of the particular wiring arrangements used on the wheelchair for both normal use and stalled conditions PGDT can make general recommendations for wiring of control systems but PGDT accepts no responsibility or liability for losses of any kind arising from the actual wiring arrangement used The chair manufacturer is responsible for establishing the only the mating connectors specified by PGDT on the control system s specific data sheet are used to connect to the control system PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for ensuring that suitable connectors are used and securely mated throughout the chair wiring system and also for the quality of the wiring system Failure to meet this condition could result in intermittent operation sudden stopping or veering and even create a burn or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for ensuring that 52 Wire Gauge and Types The table below gives the minimum recommended wire sizes for the various VR2 specifications These recommendations are deri
72. ed in EN12184 If users with particular disabilities need very low braking rates and this results in a longer stopping distance the maximum speed must be re programmed so that the stopping distance requirement is satisfied State in the wheelchair user handbook that it is the responsibility of the person programming the control system to make sure that the stopping distance requirement is satisfied If the braking rate is low the forward and reverse maximum speed settings may need be re programmed To assist the person in this task include a graph in the wheelchair user handbook showing the relationship between the maximum forward reverse speed settings and the forward reverse braking rate which is required to ensure the correct stopping distance It may be possible to program settings which compromise the stability of the wheelchair Perform suitable tests to establish which programming restrictions are needed to prevent instability State any programming restrictions in the wheelchair user handbook State in the wheelchair user handbook that it is the responsibility of the person programming the control system to make sure that the settings are safe and to note any programming changes that they make Programming should only be conducted by healthcare professionals with in depth knowledge of PGDT electronic control systems Incorrect programming could result in an unsafe set up of a wheelchair for the user PGDT accepts no liabil
73. eed display LEDs will flash e Push and hold the joystick fully forward and press the horn key until the VR2 bleeps The 3 left most speed display LEDs will flash Push and hold the joystick fully to the left and press the horn key until the VR2 bleeps The 4 left most speed display LEDs will flash e Push and hold the joystick fully to the right and press the horn key until the VR2 bleeps All 5 speed display LEDs will flash Pull the Joystick fully back and press the horn key until the VR2 bleeps The speed display will go out and the TruCharge display will flash all 10 LEDs e Turn the VR2 off e Isolate the Joystick Module by disconnecting the Joystick Cable from the Power Module e Reassemble the joystick module ensuring the rubber gasket is correctly positioned and replace the 5 retaining screws Tightening to 0 8Nm 7 inch Ibs Incorrect fitting of the Gasket could seriously affect the Joystick Module s resistance to moisture ingress Turn the controller on again 106 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 6 Servicinc amp Diagnostics If the replacement or the calibration sequence has been unsuccessful the TruCharge display will flash 7 bars Refer to Chapter 1 Section 8 5 If the Joystick does not operate correctly or if the calibration sequence does not appear then run through the following Checkthat Joystick Module is receiving power from the Power Module The LEDs should light u
74. en separated into workable groups for easy referencing Speeds Section 2 Acceleration Deceleration Turn Acceleration Turn Deceleration Forward Speed Reverse Speed Turning Speed Power Number of Drive Profiles Minimum Acceleration Minimum Deceleration Minimum Turn Acceleration Minimum Tum Deceleration Actuators Section 3 Number of Actuators Actuator 1 End Force Actuator 1 Current Limit Timeout Actuator 2 End Force Actuator 2 Current Limit Timeout Actuator End stop bleep Actuator Selection with Joystick Operation Section 4 Sleep Timer Joystick Throw Invert Joystick Steer Correct Switch Bleep Volume Speed Adjustment while Driving Battery Section 5 Low Battery Flash Cable Resistance Calibration Factor Low Battery Alarm Low Voltage Cut Out Low Voltage Time 48 Inhibit Section 6 Inhibit 2 Threshold Levels Inhibit 2 Speed Limit Bands Inhibit 2 Operation Inhibit 2 Debounce Seat Reversal Inhibit 3 Threshold Levels Inhibit 3 Speed Limit Bands Inhibit 3 Operation Inhibit 3 Debounce Inhibit 1 Alarm Inhibit 2 Alarm Inhibit 3 Alarm Inhibit Actuator Channel 1 Up Down Inhibit Actuator Channel 2 Up Down General Section 7 Fast Brake rate Soft Stop Front Wheel Drive Rate Soft Reverse Deceleration Rate Reverse Driving Alarm Brake Disconnect Alarm K10 Lock Function Enabled Brake Fault Detect Brake Voltage Output Voltage Motor Section 8 Current Limit Max
75. er as much of their length as is practical damage to or failure of the wheelchair lighting system including any associated wiring It is the responsibility of the wheelchair manufacturer to ensure that the lighting system wiring complies with all relevant standards PGDT accepts no liability for losses of any kind arising from SK77898 3 87 VR2 Controt System PG DRIVES TECHNOLOGY LIGHTING MODULE WIRING DETAIL 123 GND m LIGHTS LIGHTS _ _ INDICATORS LOOKING AT LIGHTING MODULE Connection Function 1 Ground 2 Lights Pin3 Indicators 88 SK77898 3 DRIVES TECHNOLOGY CHAPTER 4 LIGHTING 4 Programming The VR2 L contains 3 extra programmoble parameters which are described below 41 Lamp Voltage Adjusts the operating voltage for the wheelchaiir s lighting system You can select either 12V or 24V The wheelchair s lights and indicators should be fitted with lamps of the corresponding value If 12V is selected then the lights and indicators will remain a constant brightness regardless of the battery voltage T V Germany require this constant brightness condition 42 Lamp Wattage Adjusts the control system to match the wattage power of the indicator lamps Correct setting of this parameter is required to accurately detect the failure of an indicator lamp You can set this parameter to 5W 1
76. g This function is only present in the and PCPc versions of the PC Programmer SK77898 3 77 VRZ Controt System PG DRIVES TECHNOLOGY 78 SK77898 3 PG DRIVES TECHNOLOGY SK77898 3 CHAPTER 4 LIGHTING H CHAPTER 4 LIGHTING 79 VRe Controt System PG DRIVES TECHNOLOGY 80 SK77898 3 DRIVES TECHNOLOGY CHAPTER 4 LIGHTING Introduction This section of the manual describes the operation installation and programming differences generated by the VR2 lighting system The VR2 lighting system comprises of VR2 L VR2 fitted with lighting control buttons and connection to a VR2 lighting module VR2 LM e Controls There are common controls between the VR2 and VR2 L control system which operate as previously described in Chapter 1 Where a control has been moved fhis will be noted however where a control has changed a description of its new functionality and use will be given All information regarding handling advice cleaning requirements and overall control described in Chapter 1 should be followed Refer to the illustration on the following page for the new VR2 L control layout 2 1 Actuator Button and LEDs Depending on whether the VR2 is programmed with 1 or 2 actuators the operation of this button will differ Refer to the relevant section below For actuator programming refer to Chapter 3 ell Wheelchairs with One Actuator Depressing the actuator button once will enter actuator adjustment mode
77. ghts and associated LED 84 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 4 LIGHTING 3 Lighting Module Installation Mounting The lighting module should be mounted vertically with the connector sockets pointing down using M3 5 Europe or 6 40 USA screws The lighting module must be mounted in a position where it is not exposed to conditions of water or dust above those specified ISO7176 9 Do not mount the lighting module in a position which would expose it to excessive shock or vibration The lighting module is designed to withstand levels of shock and vibration experienced when mounted to the chassis of a wheelchair and has been tested in accordance with BS2011 part 2 1Eb 1987 and 52011 part 2 1Fd 1973 for Bump and Random Vibration respectively Direct impacts onto the lighting module should be avoided Contact PGDT if you need further advice MOUNT THIS WAY UP mn uon SIDE SIDE LIGHTS LIGHTS INDICATORS INDICATORS It is possible for the case temperature of the Lighting Module to rise above 41 lIO7 F For this reason the Lighting Module should be fixed in a position where it cannot be touched by the wheelchair user SK77898 3 85 VRe Controt System PG DRIVES TECHNOLOGY 3 2 Connection The lighting module has three connector sockets Refer to the illustration in section 3 1 3
78. he joystick will stop the wheelchair The intelligent speed control system minimizes the effects of slopes and different types of terrain safely PGDT accepts no liability for losses of any kind The wheelchair user must be capable of driving a wheelchair arising from failure to comply with this condition SK77898 3 9 VRZ Controt System PG TECHNOLOGY 6 Precautions for Use RELEASE THE JOYSTICK This action will stop the wheelchair Q In the event of the wheelchair moving in an unexpected way under any circumstances 6 5 Do not drive the wheelchair Beyond restrictions indicated in your wheelchair user manual for example maximum inclines curb height etc n places or on surfaces where a loss of wheel grip could be hazardous for example on wet grassy slopes e f you know that the control system or other crucial components require repair reliable and each unit is rigorously tested during manufacture the possibility of a system malfunction always exists however small the probability Under some conditions of system malfunction the control system must for safety reasons stop the chair instantaneously If there is any possibility of the user falling out of the chair as a result of a sudden braking action it is imperative that a restraining device such as a seat belt is supplied with the wheelchair and that it is in use at all times when the wheelchair is in motion PGDT accept no liabili
79. ieved by disconnecting the control system and routing power straight to the Actuator motor in question e actuator motor is not faulty check the connections between the control system modules are correct e Ifthe connections are good then the Power Module may be defective refer to Section 5 2 4 Other Conditions This covers conditions that are not displayed as trip codes or on the TruCharge display This may be because either the control cannot switch on the condition is not SK77898 3 ul VRe Controt System PG DRIVES TECHNOLOGY considered critical enough to force a trip or the control system cannot detect the condition 2 41 Control system will not switch on Check the battery connections to the control system If these appear to be good then the Power Module may be defective refer to section 5 e Check the cable between the Power Module and the Joystick Module If this appears to be good then either module may be defective refer to section 5 2 4 2 Wheelchair drives slowly This could be caused by one of the following The control system has been incorrectly programmed Aspeed limiting function is active e g seat in a raised position on wheelchairs fitted with lifting seats Defective motor or defective brake 2 4 3 Wheelchair will not drive a straight line This could be caused by a defective motor or defective brake 2 4 4 One motor or brake becomes very warm This could be caused by a defective mo
80. in Forward drive Left and Right deflection of the joystick remain unchanged 44 Steer Correct This parameter compensates for any mismatching of motors to ensure that the wheelchair drives directly forward when the control system s joystick is being pushed directly forward It is normally set to zero but may be varied from 9 to 9 in increments of 1 If the chair is veering to the left you should increase the setting If the chair veers to the right decrease the setting If Swap Motors is set this logic will be reversed 45 Switch Bleep Volume Switch Bleep Volume sets the volume of the audible feedback given whenever a button on the VR2 is operated Adjustable between 0 and 10 in steps of 1 If the parameter is set to O then the Switch Bleep function is effectively switched OFF The higher the value the louder the audible feedback 46 Speed Adjustment while Driving This parameter sets whether the VR2 s speed profile buttons are active while the wheelchair is being driven The parameter can be set to on or off On Means the buttons are active while the wheelchair is being driven so the user can make maximum speed setting adjustments or select a different drive profile while actually moving SK77898 3 57 VR2 Controt System PG DRIVES TECHNOLOGY Off Means the buttons are not active while the wheelchair is being driven so the joystick must be released and the wheelchair at rest before maximum speed setting adjustments or
81. in the control system can also be used to offer some level of motor protection 55 Solenoid Brake Wiring The control system will be immobilized instantly if the brake current is less than approximately 100mA e maximum continuous current is The VR2 control system can be programmed to operate with either 12 or 24V brakes Refer to Chapter 3 for programming details SK77898 3 33 VRZ Controt System PG TECHNOLOGY 6 Drive Motors The control system is designed to be connected to permanent magnet DC motors fitted with suitable gearboxes and solenoid brakes In order to optimize the performance of the wheelchair the control system must be matched to the motor terminal impedance This matching is implemented by programming the control system The parameter for adjustment is Motor Compensation Refer to Chapter 3 for details The Motor Compensation value should be set in accordance with the armature resistance of the motor and all cables and connectors between the VR2 and the motor The value is set in milli Ohms A recommended value is e 70 of the armature resistance cables and connectors Motor manufacturers should be able to supply figures for armature resistance and cable and connectors may typically be 40 Example Motor has armature resistance of 200 0 Cables and connectors 40mQ Set Motor Compensation to 0 7 x 200 40 170mQ Failure to match the control system with the
82. ir uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Users must not transfer a control system from one chair type to install it on a different chair type Control systems with different part numbers may have both hardware and software differences to ensure that they are compatible with the electrical and dynamic characteristics of their specific target vehicles The characteristics of one type of control system may not be compatible with a different unauthorized chair Failure to observe this warning could result in an unsafe set up for the wheelchair user and may create a fire hazard depending on the motors wiring connectors and circuit breakers installed on the unauthorized chair PGDT accepts no liability for losses of any kind arising from failure to comply with this condition SK77898 3 75 VRZ Controt System PG DRIVES TECHNOLOGY 83 Invert MI Direction This inverts the direction of rotation of motor channel M1 On a standard VR2 M1 relates to the left motor channel The parameter can be set to on or off On means the motor output M1 will be inverted Off means the motor will rotate in the normal direction 8 4 Invert Me Direction This inverts the direction of rotation of motor channel M2 On a standard VR2 M2 relates to the right motor channel The parameter can be set to on or off On means the motor output M2 will be inverted
83. is SIGGOY uu serre er tc ied a i E 13 8 2 Battery Gauge Flashes eer nd e a 13 SK77898 3 VRZ Controt System PG DRIVES TECHNOLOGY 8 3 Battery Gauge Steps 13 8 4 Battery Gauge Flashes Rapidly even with the joystick released 13 8 5 5 Guide tinet inerte iie pe CH PATRE ER AREE PUE ARE T Ne EXE 13 8 6 Slow Of SIUGGISMIMOVEMEMT ics ua sk conv disset vett x tef e een 15 8 7 Speed Profile Indicator is Steady 15 8 7 1 SpeedCars mr ae ec e Rr p ire eg ee ERR S 15 8 7 2 Profile 15 8 8 Speed Profile Indicator Ripples Up and Down 15 89 Speed Profile Indicator Flashes 15 8 10 Actuator LED FIAS NES rnern e rite ekta hie intei 15 9 Battery GUJE scrisa aiaa aa aiak CURED I6 9 1 Howto Read a TruCharge Battery Gauge 16 IO Battery GMA gim gissar anaa 17 Il PPO GI SAMMI MAIN ttt I8 le Joystick Knobs ceteri rer riiai aaa adanan aiaa ia 19 rmt 19 14 eo Chapter 2 5 el Docu rmentatiori
84. is reduced to 50 then 25 and a full drive inhibit occurs at maximum height A circuit such as below is used VR2 INHIBIT POSSIBLE SWITCH SET UP Inhibit 2 When the seat is in the fully lowered position all switches are closed and the electrical resistance is a short circuit or O Ohms As the seat raises SW opens giving 2 2KOhrms then SW2 opens giving 4 4KOhms and at full height SW3 opens giving a complete open circuit Programming would be as below Inhibit 2 Threshold Levels SK77898 3 65 VRZ Controt System PG TECHNOLOGY VR2 INHIBIT BANDS Band 3 54 Band 2 4K4 44 34 1 2K2 2240 1290 Upper Level Threshold 54 Middle Level Threshold 34 Lower Level Threshold 12 This gives a band arrangement as below As good practice the threshold limits have been chosen so the actual resistance values that trigger a change are in the approximate center of the bands thereby eliminating the risk of a system erroneously switching between bands The 4 Speed Limits for Inhibit 2 would need to be set as below Inhibit 2 Speed Limit in Band 0 100 Speed Limit in Band 1 50 Speed Limit in Band 2 25 Speed Limit in Band 3 0 6 15 2 Actuator Inhibit Examples Application 1 In an identical fashion to the previous example a wheelchair is fitted with a lifting seat and as the seat raises the maximum speed is reduced to 50 then 25 and full drive inhibit occurs
85. ity for losses of any kind due to failure to or incorrect programming or the VRe Control System SK77898 3 23 VRZ Controt System PG DRIVES TECHNOLOGY Soft Stop The VR2 has a programmable value called Soft Stop Rate which sets the emergency stopping distance You must ensure that the emergency stopping distance is within ihe distance specified for the country in which the wheelchair will be used T V Product Service Germany specify the distance to be as stated in EN12184 14 Other Information You must provide a diagram in the wheelchair user handbook showing the user controls and the main features of the control system In addition you should include a brief specification of operating supply voltage range and operating temperature range 15 Control System Make up The VR2 Control Systern is made up of a minimum of 2 modules the Joystick Module and the Power Module The following table shows the relationship between the two modules Power Module VR2 50 VR2 60 VR2 60 A1 VR2 60 A2 70 VR2 70 A1 VR2 70 A2 VR2 90 VR2 90 A2 24 Description 50A Output No Actuators 60A Output No Actuators 60A Output 1 Actuator 60A Output 2 Actuators 70A Output No Actuators 70A Output 1 Actuator 70A Output 2 Actuators 90A Output No Actuator 90A Output 2 Actuators Joystick Module Options JSM JSM JSM L JSM A JSM A L JSM A JSM A L JSM JSM L JSM A JSM A L JSM A JSM A L JSM JSM L JS
86. iven Off Means there is not 76 Brake Disconnected Alarm Sets whether the VR2 gives an audible warning while the wheelchairs electrical brakes are disconnected The parameter can be set to on or off On Means there is an audible alarm given Off Means there is not SK77898 3 69 VRZ Controt System PG DRIVES TECHNOLOGY 7 7 Programming Restriction Sets whether the VR2 is field programmable or not The parameter can be set to on or off On Means the VR2 cannot be programmed with dealer access programmers such as or PC Programmer Off Means the VR2 can be programmed with these types of devices 78 Lock Function nabled Sets whether the VR2 s locking sequence can be used to prevent the wheelchair being driven by unauthorized persons The parameter can be set to on or off On Means the Lock function is available Off Means it is not 79 Brake Fault Detect Sets whether the VR2 Detects a fault in the wheelchair s electrical brakes or the connections to them The parameter can be set to on or off On Means the VR2 will detect brake faults Off Means the VR2 will not detect brake faults This parameter should only ever be set to off if there are no electrical brakes fitted to the wheelchair 7lO Brake Voltage This sets the voltage output from the power module to the solenoid brake it can be programmed to 12V or 24V brakes the correct brake voltage or damage may be done to the control syste
87. l 1 to be inhibited in either or both directions via either or both the Inhibit 2 and or Inhibit 3 inputs There are a total of 8 parameters that can be set Actuator Channel 1 Up Inhibit in Inhibit 2 Band O Inhibit in Inhibit 2 Band 3 Inhibit in Inhibit 3 Band O Inhibit in Inhibit 3 Band 3 Actuator Channel 1 Down Inhibit in Inhibit 2 Band O Inhibit in Inhibit 2 Band 3 Inhibit in Inhibit 3 Band O 64 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER PROGRAMMING Inhibit in Inhibit 3 Band 3 Each parameter can be set to yes or no Yes Means that particular actuator channel direction of movement will be inhibited when the relevant inhibit input is in that band For example If Actuator Channel 1 Up Inhibit in Inhibit 2 Band 3 is set to yes then Actuator Channel 1 Up direction will be inhibited when the connection to Inhibit 2 is of a resistance within the range of Band 3 No Means that particular actuator channel direction of movement will not be affected by the relevant inhibit band combination For a more detailed example of actuator inhibits refer to section 6 15 2 614 Actuator Channel Up Inhibit and Actuator Channel 2 Down Inhibit This parameter operates in the same way as Actuator Channel 1 Up Inhibit and Actuator Channel 1 Down Inhibit as described in section 6 13 615 Inhibit Examples 615 1 Speed Inhibit Examples Application A wheelchair is fitted with an elevating seat As the seat raises the maximum speed
88. lues for reverse speed of the wheelchair Adjustable in steps of 1 from 0 to 100 A higher value gives a faster soeed The minimum value occurs when the speed setting 1 is selected and the maximum value occurs at speed setting 5 2 7 Turning Speed Adjusts the minimum and maximum values for the turning speed of the wheelchair Adjustable in steps of 1 from 0 to 100 SK77898 3 5I VRZ Controt System PG DRIVES TECHNOLOGY A higher value gives a faster speed If Drive Profile O is selected then the minimum value occurs when speed setting 1 is selected and the maximum value occurs when speed setting 5 is selected 28 Power Sets the power of the wheelchair Adjustable in steps of 1 from 0 to 100 Power is the ability of a wheelchair to climb a hill or overcome an obstacle If it is set to 100 then the wheelchair will provide full power Values below 100 will result in reduced power A typical use is to minimize damage to doorways or furniture if the wheelchair is being used indoors The values can be set independently between drive profiles meaning separate indoor and outdoor profiles can be defined Example VR2 70 is programmed to Current Limit Max 70 Amps Power Profile 1 100 Power Profile 2 50 This means that in profile 1 the VR2 will output 70A but in profile 2 will output 50 of 70A 35A 29 Number of Drive Profiles Refer to section 1 5 20 Minimum Acceleration Adjusts the minimum value for forw
89. lure to observe these conditions could result in poor contact resistance in the charger connector resulting in overheating of the charger plugs This presents a potential burn hazard for the user PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not exceed the maximum charging current of rms Ensure that the charger plug pins are of the correct polarity to be compatible with the pin polarity shown on the control system s specific data sheet Failure to observe this condition could result in a burn hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not disconnect batteries or open circuit the circuit breaker while charging is in progress Failure to observe this condition could result in a burns hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition 36 SK77898 3 PG TECHNOLOGY CHAPTER 2 INSTALLATION 82 On board Charging The VR2 control systems have a 3 way connector for connection to an on board battery charger Refer to section 4 for connector details The maximum permissible charging current is rms For details of how to provide a suitable inhibit function refer to section 9 Do not exceed the maximum charging current of A rms Always use an on board charger fitted with the Intech parts
90. m the brakes or the drive performance of the wheelchair It is essential that the control system is programmed to Output Voltage This sets the value of voltage applied to the motor when the joystick is fully deflected and the relevant speed forward or reverse is set to 100 This feature allows you to choose a motor voltage value such that the wheelchair s top speed will remain constant all the time the battery voltage is above that value This value can be set between 20 and 25V in steps of 0 5V 70 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER PROGRAMMING 8 Motor Parameters 8 Current Limit Max Current Limit Current Foldback Threshold Time Level amp Temperature Boost Current amp Time These parameters affect the VR2 s current output with relationships to time and internal VR2 temperature The parameters associated with the Motors are Current Limit Max This is the current the VR2 can deliver until the programmed value of Current Foldback Temperature is reached Programmable between 20A and the Control System s Maximum in steps of 1 Amp Current Limit Min This is the current the VR2 will deliver at 80 C internal temperature Programmoble between 20 and Current Limit Max in steps of 1 Amp Current Foldback Threshold This parameter sets the level of current which when exceeded activates the Current Foldback Time parameter Programmable between 20 and the Current Limit Max in steps of 1 Amp C
91. manual for details MOUNTING HOLE POSITIONS T o o HOLE CTS View of underside 96 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 5 ATTENDANT 4 Connection Secure all cables to the wheelchair frame over as much of their length as is practical 41 Connetion to the VR2 Attendant module The VR2 attendant module systern is connected to the VR2 Attendant module Control System via a designated cable as shown below using the cable supplied VR2 ATTENDANT SYSTEM CONNECTION CONFIGURATION To Joystick DUAL Module MODULE To Power ATTENDANT Module MODULE INTERMEDIATE CABLE SK77898 3 97 VRe Controt System PG TECHNOLOGY 42 VRZ Attendant Module amp Lighting Module Including a VR2 Attendant module Module into a lighting configuration VR2 ATTENDANT SYSTEM CONNECTION CONFIGURATION LIGHTING MODULE To Power ATTENDANT Module MODULE INTERMEDIATE CABLE 98 SK77898 3 DRIVES TECHNOLOGY CHAPTER 5 ATTENDANT 5 Joystick Orientation Reorientation of the joystick is only required when the attendant module system has been mounted on a wheelchair so that the control buttons are not facing in the wheelchairs forward drive direction Reorientation is achieved as follows Ensure the Control of the VR2 has been set to the attendant module system The Green LED indicating the attendant module system is in control must be illuminated
92. motors may result in poor control characteristics If you have any doubts about the suitability of particular motor type or you need advice on measuring motor impedance contact PGDT The chair manufacturer is responsible for ensuring that the control system is matched to the motor resistance Failure to do this may result in poor control characteristics which in extreme instances can make a chair uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for always ensuring that any replacement motors or gearboxes are fully compatible with the originals that the control system was designed to match Failure to do this may result in poor control characteristics which in extreme instances can make a chair uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition to install it on a different chair type Control systems with different part numbers may have both hardware and software differences to ensure that they are compatible must not move a control system from one chair type 34 SK77898 3 PG TECHNOLOGY CHAPTER 2 INSTALLATION with the electrical and dynamic characteristics of their specific target vehicles The characteristics of one type of control system may not be compatible with a different unauthorized chair
93. n at this value there 76 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING damping the control system Higher values apply a higher level of ng The higher Tremor Damping is set the slower joystick response will become When setting Tremor Damping pay particular attention to stopping distances As the parameter dampens the response to the joustick commands stopping distance can be affected To stop the wheelchair with Tremor Damping activated you must release the joustick and allow it to center It is the responsibility of the wheelchair manufacturer to ensure requirements on stopping distances are adhered to 9 Memory Functions The VR2 has a timer and a diagnostic log These can be read and cleared using the Programmer or the PC Programmer 91 Read Timer The VR2 has a timer which records how long the wheelchair is in use The timer runs whenever the joystick is moved away from the center position and stops when the joystick is returned The timer records the number of hours the wheelchair has been in use 9 2 Clear Timer This function resets the VR2 s timer This function is only present in the PCPb and PCPc versions of the PC Programmer 93 Read System Log The VR2 has a diagnostic log facility which stores the number of occurrences of the last eight detected system problems This allows you to view the contents 94 rase System Log This function clears the VR2 s diagnostic lo
94. ncluded in the wheelchair operating guide Further copies are available from PGDT in either written or disk Adobe PDF format Copies should not be made without the express permission of PG Drives Technology The operation of the VR2 varies dependent on programming This chapter covers all types of operation It is the responsibility of the wheelchair manufacturer to ensure that only the relevant sections of this chapter are included in the wheelchair s operating manual The operation of the VR2 wheelchair control system is simple and easy to understand The control system incorporates state of the art electronics the result of many years of research to provide you with ease of use and a very high level of safety In common with other electronic equipment correct handling and operation of the unit will ensure maximum reliability Please read this chapter carefully it will help you to keep your wheelchair reliable and safe e General Handling Avoid knocking your control system and especially the joystick Be careful not to strike obstacles with the control system or joystick when you drive Never drop the control system When transporting your wheelchair make sure that the control system is well protected Avoid damage to cables ee Operating Conditions Your control system uses industrial grade components throughout ensuring reliable operation in a wide range of conditions However you will improve the reliability of the con
95. nnector resulting in overheating of the charger plugs This presents a potential burn hazard for the user PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not exceed the maximum charging current of 2 Arms with that shown on the specific control system s data sheet Failure to observe this condition could result in a burn hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Ensure that the charger plug pins are of the correct polarity while charging is in progress Failure to observe this Do not disconnect batteries or open circuit the circuit breaker condition could result a burns hazard or fire hazard SK77898 3 I7 VRZ Controt System PG TECHNOLOGY PGDT accepts no liability for losses of any kind arising from failure to comply with this condition your wheelchair The use of incorrect chargers could damage the batteries wheelchair control system or charger itself or may result in parts overheating creating the potential for burns or even fire PGDT accepts no liability for losses of any kind if the charger is incompatible with the control system see Chapter 2 section 8 or any other part of the wheelchair system e Only use the battery charger that has been supplied with ll Programming If you cannot find a maximum speed control setting that suits you the control system
96. nt output will be reduced to a value set by Level After a fixed reset period of 5 x Current Foldback Time the current output will be allowed to return to the full current if demanded This reset period is to allow the VR2 CURRENT FOLDBACK DESCRIPTION Current Current Foldback Threshold Current Foldbaek Level T Curent 5 x Time Foldback Time motor s sufficient time to cool Settings VR2 is programmed to Current Limit Max 60 Amps Current Foldback Threshold 60 Amps Current Foldback Time 15 Seconds Current Foldback Level 25 This is useful for protecting motors against potential damage when the wheelchair is being used on a long gradient After 15 seconds the current output of the VR2 will reduce to 25 of 60A 15A After 5 x 15s 75s the current output will return to 60A If no timed foldback is required simply set Current Foldback Level to 100 72 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING Example 2 Temperature The VR2 protects itself by measuring its internal temperature When this temperature reaches a certain level the current output starts to reduce This relationship is shown in the following illustration 1 Current Foldback Threshold This is the current the VR2 can deliver until the programmed value of Current Foldback Temperature is reached 2 Current Limit Min This is the current the VR2 will deliver at 80 C internal temperature 3 Cur
97. o comply with this condition Do not exceed the maximum charging current of A rms SK77898 3 PG DRIVES TECHNOLOGY CuaPreR 7 WARNING SUMMARY Ensure that the charger plug pins are of the correct polarity with that shown on the specific control system s data sheet Failure to observe this condition could result in a burn hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition while charging is in progress Failure to observe this condition could result in a burns hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 2 section 8l Do not disconnect batteries or open circuit the circuit breaker 246 On board Charging Always use an on board charger sitted with the Intech parts specified in section 4 2 PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not exceed the maximum charging current of A rms with that shown on the specific control system s data sheet Failure to observe this condition could result in a burn hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Ensure that the charger plug pins are of the correct polarity while charging is in progress Failure to observe this condition could result in a burns hazard or fire haza
98. ol system is altered from the factory pre set values Programming should only be conducted healthcare PPla Programmer The PP1a handheld programmer is intended to give dealers and therapists access to the programmable parameters which can be used to adjust the wheelchair to an individual users requirements These parameters are Acceleration Actuator 2 End Force Deceleration Actuator End Stop Bleep Turn Acceleration Sleep Timer Turn Deceleration Joystick Throw Forward Speed Invert joystick Reverse Speed Steer Correct Turning Speed Switch Bleep Volume Power Speed Adjustment while Driving Profiles Reverse Driving Alarm Actuator Selection Torque Actuator 1 End Force Tremor Damping The can also be used to read the Fault Log and Timer For details of how to use the PP1a with the VR2 refer to the PP1a Programming and Diagnostics guide SK73747 Le PC Programmer There are three versions of the PC Programmer one for dealers and therapists which gives the same access level as the PPla handheld programmer one for wheelchair OEM s which gives access to all standard VR2 control system parameters and one for use by OEM s on their production lines These are known as PCPa and PCPc respectively For details of how to use these software packages with VR2 refer to the documentation supplied with the software SK77898 3 47 VRZ Controt System Parameters PG DRIVES TECHNOLOGY The parameters have be
99. osis with The Charge 112 SK77898 3 VRe Controt System VRe Controt System PG TECHNOLOGY 2 5 2 Using a programmer to read the trip code 113 3 Trip Types and Their Possible Causes 3 1 Trip 1 Low Battery Voltage 115 3 2 Type 2 Left Motor Disconnected wc nn 115 3 3 Trip Type 3 Left Motor Wiring Trip 222 0 HH 115 3 4 Type 4 Right Motor 115 3 5 Trip Type 5 Right Motor Wiring 222 115 3 6 Type 6 Charger Connected issoria onnaa 116 3 7 Type 7 Possible Joystick Trip 116 3 8 Trip Type 8 Possible Control System 116 3 9 Type 9 Solenoid Brake Trip 116 3 10 Type 10 High Battery Voltage seirinin oisinnean 117 3 11 Joystick Displaced dt rere ERR n 117 3 12 COMMUNICATIONS EITOI ceri terat etr rcc ta d aci E 117 ACTIVE LL LLLI 117 Ar EET 117 9 15 SACTUGTOR Motor WINO TI sues sc oponen kr c RR e i Re RR ER espere 117 3 16 Curent EI ACTIVE Du Ores UN TNR E 118 3 17 High TEMPS S nnn
100. p e Repeat the replacement procedure ensuring that all the cables are securely connected and that the connectors clean clear and not damaged Repeatthe calibration procedure 1 3 Joystick Cable Replacement 131 Joystick Cable Removal e Isolate the Joystick Module by disconnecting the Joystick Cable from the Power Module e Remove the 5 retaining screws from the underside of the Joystick Module Disconnect the Serial Cable from the PCB Remove the 2 retaining screws holding the Charger Socket and Cable Slide the Charger Socket and Cable out of the plastic base Gasket Retaining Screws x2 Base Plan View SK77898 3 107 VRe Controt System PG TECHNOLOGY Charger Connection amp Cable 13 2 Fitting a Joystick Cable Insert the new Charger Socket and Cable into the plastic case Attach the cable from the new Charger Socket and Cable onto the PCB Secure the Charger Socket and Cable with the 2 retaining screws e Reassemble the joystick module ensuring the rubber gasket is correctly positioned and replace the 5 retaining screws Incorrect fitting of the Gasket could seriously affect the Joystick Module s resistance to moisture ingress e Connect the Joystick Cable to the Power Module e controller on If the procedure has not been followed correctly or the cable is faulty the TruCharge display will flash 7 bars and the Speed Indicator will flash all 5 LEDs Refer
101. p Bleep Refer to Chapter 3 for programming details Actuator Inhibits The Inhibits inputs can be used to inhibit the movement range of the actuator channels You can limit the amount of movement for either actuator channel in either direction by programming Inhibit Bands 0 and or 3 Refer to chapter 3 for programming details Actuator Motors The VR2 control system is designed to be connected to permanent magnet DC actuator motors The VR2 may not be compatible with actuators that have their own over current detection electronics Actuator assemblies with slipping clutches may also be unsuitable as the motors will never stall therefore not allowing the 38 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 2 INSTALLATION control system to detect the end stop Please contact PGDT if you are unsure Large values of capacitance should not be connected across the control system s actuator outputs as electrical resonance could occur which may affect control system operation If capacitors are required for E M C purposes the capacitance value should not exceed 10nF Section 13 gives more details SK77898 3 39 VRZ Controt System PG DRIVES TECHNOLOGY Production Tests Perform the following tests in order on each wheelchair before dispatch restraining device such as a seat belt should alwaus be used PGDT accepts no liability for losses of any kind arising from failure to comply with this condition These tests should
102. parameter sets whether the VR2 will give an audible alarm to signal a low battery condition The point at which the alarm will sound corresponds to the Low Battery Flash Level setting The parameter can be set to On or Off On Means an alarm will sound Off Means there will be no alarm 5 5 Low Voltage Cut Out This allows programming of the level the voltage must reach for the period set by Low Voltage Time before the control system ceases to operate It is programmable from 16V to 22V in steps of 0 5V 5 6 Low Voltage Time This allows programming of the length of time the voltage must be below the Low SK77898 3 59 VRZ Controt System PG TECHNOLOGY Voltage Cut Out Level before the control system ceases to operate Programmable from 1 to 255 seconds in steps of 1 second 60 SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING 6 Inhibit Parameters The VR2 contains two highly versatile inhibit inputs that can be configured to provide drive inhibit speed limiting and actuator inhibit functions These inputs are referred to as Inhibit 2 and Inhibit 3 Inhibit 2 is via a dedicated 2 way connector on the Power Module Inhibit 3 is via pin 3 of the On board Charger connector on the Power Module 61 Inhibit 2 Threshold Level Inhibit 2 has 4 possible input states known as bands Each band corresponds to a range of electrical resistance connected to the input The range or size of each band is programmable via
103. parameters that can be set Inhibit 3 Speed Limit in Band O Inhibit 3 Speed Limit in Band 1 Inhibit 3 Speed Limit in Band 2 Inhibit 3 Speed Limit in Band 3 Each is programmable between 0 and 100 in steps of 1 The value in each band s parameter sets the wheelchair s maximum driving speed when the VR2 s Inhibit 3 input is in that band For example if Inhibit 3 Speed Limit in Band 3 is set to 0 then the drive will be fully inhibited when the connection to Inhibit 3 is of a resistance within the range of Band 3 For a detailed example of drive inhibits and speed limits refer to section 6 15 1 6 8 Inhibit 3 Operation This pararneter is only relevant if one of the Inhibit 3 Speed Limit in Band x values is set to 0 i e a drive inhibit The parameter can be set to Latching or Non latching If set to Latching remove the inhibit then the VR2 must be switched off and on again to resume drive after an inhibit condition has occurred If set to Non latching then drive will be possible as soon as the inhibit condition is removed If Inhibit 3 is set to latching then the TruCharge battery gauge will indicate the wheelchair is charging when the inhibit is active See Chapter 1 section 8 3 69 Inhibit 3 Debounce This parameter sets the amount of time connection to Inhibit 3 input must be stable before it is interpreted as a valid condition This parameter is particularly useful for switch types that exhibit bounce such as mercu
104. pce ERE 118 4 Basic Tests ecce deep aaa 41 General Inspection ahs n a MEM UIS 119 44 Gradient Jest 5 Servicing of Defective Units Chapter Warning Summary 2 22 lea me le5 e Warning S aaaea adasa ara aa adaa Aaaa aaa aad aaia aii iadi le5 2 1 Diving Technique peser reta cec e vete Dra eger eH edd 125 2 2 MEER PE MT 125 23 How to Read a TruCharge Battery Gauge wire 126 2 4 Battery Chargibig s sse tent e e ar 126 2 5 JPIOGICFPDEDIEG c trt rr en reves cepa erster par Pe b aate t 127 26 JOSEK KNO DS E 127 227 I TIME 127 218 128 SK77898 3 PG TECHNOLOGY VRe Controt System 2 9 JProgramm HIR 128 losers cT EE 128 2011 129 2 12 Generali icc eter rer prie rea ea Rr ERE d 129 2 13 BOMSRY G ES ERE RISE n ete abd 129 PEEL 130 2 15 Off board CNGIGING th extat ehe rta aa 130 2 16 Obor Charglblgiusu sie denies ni monter orent nn eene orn 131 2 17
105. r Modules with less than 2 Actuator Connections the un populated connectors will be blanked off 41 Crimping Good quality crimping is essential in ensuring the long term reliability of tne wheelchair s electrical system Poor quality crimps may initially appear to be satisfactory but over time they may cause problems It is recommended that crimp quality is maintained by implementing the procedures detailed in 60352 2 1990 of the control system PGDT accepts no liability for losses Defective or poor quality crimps may affect the warranty of any kind arising from failure to comply with this condition Connector Kits The connector kits can be purchased from PG Drives Technology or from Intech directly Intech s details are as below Inconnect UK Avertronics INC Taiwan 44 0 845 25 70 666 886 0 4 2358 1581 www inconnect uk net www inteam ws Connector PGDT Intech Kits Reference Reference Motor D50750 IPG 7401 PS Battery D50751 IPG 7401 PS Motor 90 D49713 PG80 M 5401 Battery 90 049712 PG80 B 5202 On Board Charger D50752 IPG 7301 PS Inhibit 2 D50753 IPG 8201 PS Actuator D50754 IPG 8202 PS Hand tools for crimping and extraction are available from Intech The references are as follows Crimp tool for 0 5 1 0mm wire 29020 Crimp tool for 4 0 6 0mm wire ICT 29030 Extraction tool for 0 5 1 Omm7 IET 503 Extraction tool for 4 0 6 0mm IET 560 e8 SK77898 3 PG DRIVES
106. r losses of any kind arising from failure to comply with this condition It is the responsibility of the chair manufacturer to ensure that the wheelchair complies with appropriate National and International EMC legislation PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The wheelchair user must comply with all wheelchair safety warnings PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter section 6 How to Read a TruCharge Battery Gauge Do not operate the control system if the battery is nearly discharged Failure to comply with this condition may leave the user stranded in an unsafe position such as in the middle of a road PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter section 91 IU UJ Battery Charging Always use an off board charger fitted with a Neutrik NC3MX plug Failure to observe these conditions could result in poor contact resistance in the charger connector resulting in overheating of the charger plugs This presents a potential burn hazard for the user PGDT accepts no liability for losses of any kind arising from failure to comply with this condition 2 4 Do not exceed the maximum charging current of A rms 26 SK77898 3 PG TECHNOLOGY CuaPreR 7 WARNING SUMMARY Ensure that the charger plug pins are of the correct
107. rd PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 2 section 8 2 Do not disconnect batteries or open circuit the circuit breaker 27 Production Test restraining device such as a seat belt should always be used PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 2 section Il These tests should be conducted in an open space and a SK77898 3 VRZ Controt System PG DRIVES TECHNOLOGY 218 Programming Introduction professionals with in depth knowledge of PGDT control systems Incorrect programming could result in an unsafe set up of a wheelchair for a user PGDT accept no responsibility for losses of any kind if the programming of the control system is altered from the factory pre set values Chapter 3 section I Programming should only be conducted healthcare 219 Safety Fences PGDT accepts no liability for losses of any kind if the chair manufacturer does not specify appropriate safety fence values for a particular wheelchair application Chapter 3 section 1 4 Brake Fault Detect This parameter should only ever be set to off if there are no electrical brakes fitted to the wheelchair Chapter 3 section 79 Current Limits The values in the table VRe Current Management should never be exceeded Doing so will invalidate the warranty and affect the long term
108. rent Foldback Temp This parameter sets the temperature within the control system at which the current starts to reduce linearly VR2 CURRENT TEMPERATURE RELATIONSHIP Current Temperature It is important that the maximum values the table shown below are not exceeded for the VR2 model you are working with Current Limit Max Current Limit Min Boost Drive Current Boost Drive Time Current Foldback Temp Doing so will invalidate the warranty and affect the long The values in the table above should never be exceeded term reliability of the control system SK77898 3 73 VRZ Controt System PG DRIVES TECHNOLOGY Example 3 Boost VR2 90 ONLY The parameters Boost Drive Current and Boost Drive Time provide a current boost for a set period of time on demand Such as when the wheelchair is being driven up an incline VR2 CURRENT TIME RELATIONSHIP Current 1 Current Limit Max This is the current the VR2 can deliver until the programmed value of Current Foldback Temperature is reached 2 Boost Drive Current This is the current the VR2 can deliver for the time defined by Boost Drive Time 3 Boost Drive Time This is the time for which the VR2 can deliver the current by Boost Drive Current 4 Current Foldback Time This sets the time for which VR2 will deliver the current defined by Current Limit Max 5 Current Foldback Level This parameter sets the percentage of
109. rol system PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for ensuring that suitable connectors are used and securely mated throughout the chair wiring system and also for the quality of the wiring system Failure to meet this condition could result in intermittent operation sudden stopping or veering and even create a burn or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 2 section 5 1 Battery Wiring The chair manufacturer must install a suitable circuit breaker to provide protection against short circuits in the battery wiring power loom or the control system Failure to comply with this could result in a fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter section 53 SK77898 3 CuaPreR 7 Warning SUMMARY 129 VRZ Controt System PG TECHNOLOGY 24 Drive Motors control system is matched to the motor resistance Failure to do this may result in poor control characteristics which in extreme instances can make a chair uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for ensuring that the that any replacement motor or gearbox is fully compatible with
110. rrent of 12A The VR2 provides automatic end stop detection for each actuator see section 10 1 To ensure correct operation of the user controls for 1 or 2 actuator applications it is necessary to program the control system accordingly The parameter for adjustment is Number of Actuators Refer to Chapter 3 for details of programming IO I Actuator End stop Detection The VR2 continuously monitors the actuator drive current so that when the actuator reaches the end of its travel the rise in current is detected and the power to the actuator is automatically shut off When the actuator current reaches the programmed End Force for a period of time greater than the programmed Actuator Current Limit Timeout the actuator is stopped Because of the wide variation in actuator motors and applications the end stop current threshold is programmable The parameters for adjustment are Actuator 1 Actuator Current Limit Timeout Actuator 2 Actuator Current Limit Timeout Actuator 1 End Force Actuator 2 End Force Actuator Current Limit Timeout is programmable between 0 and 500 in steps of 10ms Actuator End Force is programmable between 1 and 5 in steps of 1 The values should be chosen so that the actuator can move under its heaviest load condition but will shut off automatically and consistently when stalled at the end stop When the actuator end stop is reached an audible feedback can be programmed The associated parameter is Actuator End Sto
111. rself or other people and is strictly forbidden oo SK77898 3 DRIVES TECHNOLOGY 6 Servicinc amp Diagnostics P CHAPTER 6 SERVICING amp DIAGNOSTICS SK77898 3 IOI VRe Controt System PG DRIVES TECHNOLOGY 102 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 6 Servicinc amp Diacnostics Servicing Ll Introduction The VR2 Joystick Module has been designed and constructed to allow field replacements of some key componenis The replaceable components are The Joystick The Joystick Cable The Keypad manufacturer s permission will invalidate the control system s warranty PGDT accepts no liability for losses of any kind if the procedure and safety guidelines are not followed These operations should only be carried out by a trained Healthcare Technician Any replacement work carried out without the wheelchair should use anti static protection such as the RadioShack 276 2397 or Farnell 8247056 anti static wristbands PG Drives Technology recommends anti static protection to specification IEC 61340 5 0 Failure to use the correct anti static protection could cause damage to the control system PGDT accepts no liability for losses of any kind if the correct anti static protection measures are not followed Q While performing the following operations the technician SK77898 3 103 VRe Controt System PG TECHNOLOGY Le Joystick Replacement Top Section Retaining Screws x5
112. ry switches which are often used on tilt rnechanisms The parameter is programmable between 100ms and 4000ms in steps 100ms SK77898 3 63 VRZ Controt System PG DRIVES TECHNOLOGY 610 Inhibit Alarm This parameter sets whether there is an audible alarm given when VR2 Inhibit 1 is active Inhibit 1 is the inhibit associated with the off board charging socket on the front face of the VR2 The parameter can be set to on or off On Means an audible alarm will sound when Inhibit 1 is active Off Means there will be no alarm Inhibit 2 Alarm This parameter sets whether there is an audible alarm given if VR2 Inhibit 2 is active Inhibit 2 is normally the inhibit associated with the actuator functions of the VR2 The parameter can be set to on or off On Means an audible alarm will sound when Inhibit 2 is active Off Means there will be no alarm Inhibit Alarm This parameter sets whether there is an audible alarm given if VR2 Inhibit 3 is active Inhibit 3 is normally the inhibit function associated with the on board charger connections of the VR2 The parameter can be set to on or off On Means an audible alarm will sound when Inhibit 3 is active Off Means there will be no alarm 613 Actuator Channel Up Inhibit and Actuator Channel Down Inhibit This section must be read in conjunction with section 6 1 Note Band 1 and Band 2 have no effect on actuator inhibits These parameters allow Actuator Channe
113. s The VR2 can operate with single or multiple drive profiles A drive profile is a collection of programmable parameters comprising of Acceleration Deceleration Turn Acceleration Turn Deceleration Forward Speed Reverse Speed and Turning Speed The number of drive profiles is determined by the programmable parameter Number of Drive Profiles If Number of Drive Profiles is set to O then there is one setting for each of the parameters listed previously and the control system s maximum speed setting can be changed with the maximum speed profile increase and decrease buttons If tne values of Number of Drive Profiles is 2 to 5 there is a corresponding number of drive profiles and each listed parameter can be individually set within a profile The SK77898 3 49 50 VRZ Controt System PG TECHNOLOGY maximum speed profile increase and decrease buttons are then used to switch between the available profiles Although a number of Drive Profiles can be set to one the 2 operation is the same as setting to but without the ability to change maximum speed settings SK77898 3 PG TECHNOLOGY CHAPTER PROGRAMMING 2 Speed Parameters e l Acceleration Adjusts the value for forward and reverse acceleration of the wheelchair Adjustable in steps of 1 from 0 to 100 A higher value gives faster acceleration This programmed value of acceleration occurs when speed setting 5 is selected Its value at other
114. s fallen below 16V Check the condition of the batteries and the connections to the control system If the trip is still present after the batteries and connections have been checked then the Power Module may be defective Refer to section 5 In the case of 2 02 the Control System is making a log of the times that the Low Battery Lockout has been initiated 3 2 Trip Type 2 Left Motor Disconnected This occurs when the control system detects that the left motor has become disconnected Check the left motor motor connectors and wiring If the trip is still present after the above checks have been made then the Power Module may be defective Refer to Section 5 The VR2 control system may be programmed to exchange the left and right motor outputs In this instance this section will refer to the right motor Consult the wheelchair manufacturer for more details 33 Trip Type 3 Left Motor Wiring Trip This occurs when the control system detects a fault in the wiring to the left motor in particular if motor connection has short circuited to a battery connection Check the left motor connectors and wiring If the trip is still present after the above checks have been made then the Power Module may be defective Refer to Section 5 The VR2 control system may be programmed to exchange the left and right motor outputs In this instance this section will refer to the right motor Consult the wheelchoir manufacturer for more details 3 4
115. setting or if the control system is programmed for drive profile operation selects a lower drive profile It is possible to program the control system so this button has no effect while the wheelchair is being driven refer to Chapter 3 37 Speed Profile Increase Button This button increases the maximum speed setting or if the control system is programmed for drive profile operation selects a higher drive profile It is possible to program the control system so this button has no effect while the wheelchair is being driven refer to Chapter 3 3 8 Actuator Buttons and LEDs Depending on whether the wheelchair is fitted with one or two actuators the operation of these buttons will differ Refer to the relevant section below 3 8 1 Wheelchairs with One Actuator Depressing either actuator button will enter actuator adjustment mode This will be indicated by the illumination of both actuator LEDs Actuator adjustment can then be made by deflecting the joystick To re enter drive mode depress either actuator button 3 8 2 Wheelchairs with Two Actuators Depressing either actuator button will enter actuator adjustment mode If the left button was depressed the associated LED will be illuminated and deflection of the joystick will adjust the actuator motor connected to that channel If the right button was depressed the associated LED will be illuminated and deflection of the joystick will adjust the actuator connected to the other channel To re en
116. settings depends on the value of the Minimum Acceleration parameter Deceleration Adjusts the value for forward and reverse deceleration or braking of the wheelchair Adjustable in steps of 1 from 0 to 100 A higher value gives faster deceleration This programmed value of deceleration occurs when speed setting 5 is selected Its value at other settings depends on the value of the Min Deceleration parameter Turn Acceleration Adjusts the value for turning acceleration of the wheelchair from 0 to 100 in steps of 1 A higher value gives faster acceleration This programmed value of acceleration occurs when speed setting 5 is selected Its value at other settings depends on the value of the Minimum Turn Acceleration parameter 2 4 Turn Deceleration Adjusts the value for turning deceleration or braking of the wheelchair Adjustable in steps of 1 from 0 to 100 A higher value gives faster deceleration This programmed value of deceleration occurs when the Joystick Module has speed setting 5 selected Its value at other settings depends on the value of the Minimum Turn Deceleration parameter 25 Forward Speed Adjusts the minimum and maximum values for forward speed of the wheelchair Adjustable in steps of 1 from 0 to 100 A higher value gives a faster speed The minimum value occurs when speed setting 1 is selected and the maximum value occurs at speed setting 5 2 6 Reverse Speed Adjusts the minimum and maximum va
117. shold LEVEL scies eerte URS 62 6 7 Inhibit 3 Speed Limit in Band X emm 63 68 Inbibit 3 ODOI OTIOD sissies etr cie tco ua edet PC n 63 6 9 eterne ten CT RD na E EA E RR n 63 TID iere 64 MAMIE AGM earann a 64 6 12 SEA 64 6 13 Actuator Channel 1 Up Inhibit and Actuator Channel 1 Down Inhibit 64 6 14 Actuator Channel 2 Up Inhibit and Actuator Channel 2 Down Inhibit 65 0315 ANIOI EXAMP E Stanine r fitum o ec need 65 6 151 Speed Inhibit EXAMP ES sas scis ro vertu eer Hi reden EEE EE ETES 65 6 15 2 Actuator 66 7 General Parameters e 69 7 1 ROS ociese EM 69 7 2 SOIL SIODIROIO 2207 69 7 3 Font Wheel Dive RATS EE 69 7 4 Soft Reverse DeceletqatiOri eiecti en aet n eR ER 69 75 Reverse Driving erem eti teer n e P UA UE Ee 69 7 6 Disconnected Alarm DE 69 77 KIO Programming ReSICTIOD sicco et rr mained 70 7 9 Enabled ssi astu tto kt oeiia na 70 79 Brake hastens ius pr eO ENT Eu 70 PME mNelleo pr EE 70 7 11 Output VONAGE maneng 70 8 Motor Parameters iia a ee aae imer E 71 8 1 Current Limit
118. specified in section 4 2 PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Ensure that the charger plug pins are of the correct polarity to be compatible with the pin polarity shown on the control system s specific data sheet Failure to observe this condition could result in a burn hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not disconnect batteries or open circuit the circuit breaker while charging is in progress Failure to observe this condition could result in a burns hazard or fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition 9 Inhibits The VR2 control system contains two highly versatile inputs that can be configured to provides drive inhibit speed limiting and actuator inhibit functions These inputs are referred to as Inhibit 2 and Inhibit 3 Inhibit 2 input is located in the INH 2 connector on the Power Module Inhibit 3 input is located in the ON BOARD CHARGER connector on the Power Module Refer to section 4 VR2 Connections Each input has a number of associated programmable parameters Refer to Chapter 3 for details on programming SK77898 3 37 VRZ Controt System PG DRIVES TECHNOLOGY Actuator Control The VR2 control systern has the facility for 2 actuator output channels Each actuator channel can supply a maximum cu
119. t 16 Test Drive Drive the wheelchair and make sure that it operates correctly for all positions of the user controls 1 7 Soft Stop Test Drive the wheelchair at full forward speed and switch the control system off e The wheelchair must not stop suddenly but should decelerate to standstill In addition ensure that the requirements in section 1 3 of this chapter are satisfied SK77898 3 4l VRZ Controt System PG DRIVES TECHNOLOGY le Electromagnetic Compatibility M C The VR2 control system series has been tested for compliance with the EMC requirements of EN12184 The guidelines in this section will helo you to make sure that your wheelchair installation will meet the requirements of the directive 2 1 missions A typical wheelchair and VR2 installation have been type tested and have passed the requirements of CISPR 11 Observe the following recommendations to minimize radio frequency emissions 12 14 Motor Suppression Solder a suitable suppression capacitor between the brush holders of each motor inside the motor cases Keep the lead length as short as possible We recommend value of 4n7F 250V AC ceramic The maximum value you should use is typical type is Roderstein WY0472MCMCFOK For 4 pole motors a capacitor should be fitted between each pair of brushes 2 1 2 Cables You do not need to use screened battery and motor looms but Keep the length of all wiring to minimum Make sure
120. ter drive mode depress the selected actuator button as indicated by the associated LED To select the other actuator depress the opposite actuator button It is also possible to select the other actuator by left or right movements of the joystick This alternative SK77898 3 7 VRZ Controt System PG DRIVES TECHNOLOGY VR2 JOYSTICK ACTUATOR ADJUSTMENT SELECT m SELECT selection method is dependent on the programming of the control system see Chapter 3 3 9 Charger and Programmer Socket This socket should only be used for programming and charging the wheelchair Refer to section 10 for more details This socket should not be used as a power supply for any other electrical device Connection of other electrical devices may damage the control system or affect the E M C performance of the wheelchair other than a PG Drives Technology Programmer or the battery charger supplied with the wheelchair is connected into this socket Q The control system s warranty will be voided if any device 8 SK77898 3 PG TECHNOLOGY CHAPTER 1 OPERATION 4 Getting Ready to Drive Operate the on off switch The battery gauge will blink then remain on after a second e Check that the maximum speed control is set to a level which suits you e Push the joystick to control the speed and direction of the wheelchair control system on the battery gauge will ripple up and down and the wheelchair will not be allowed to move
121. the associated LED will illuminate continuously If the LED flashes a short circuit in the lighting circuit has been detected Depress the light button to turn off the lights and associated LED 23 Left Turn Indicator Button and LED To turn on the wheelchair s left turn indicator operate this button the associated LED will flash at the same rate synchronously with the indicator If the LED flashes rapidly either a total short circuit a single lamp open circuit or a total open circuit in the left side indicator circuit has been detected Depress the left indicator button to turn off the indicators and associated LED 2 4 Right Turn Indicator Button and LED To turn on the wheelchaiir s right turn indicator operate this button the associated LED will flash at the same rate synchronously with the indicator If the LED flashes rapidly either a short circuit a single lamp open circuit or an open circuit in the right side indicator circuit has been detected Depress the right indicator button to turn off the indicators and associated LED 25 Hazard Warning Button and LED To turn on the wheelchairs hazard warning lamps operate this button the associated LED will flash at the same rate The left and right turn indicator LEDs will also flash If the LED s flash rapidly either a short circuit a single lamp open circuit or an open circuit in the entire indicator circuit has been detected Depress the hazard waning button to turn off the li
122. the original control system Failure to do this may result in poor control characteristics which in extreme instances can make a chair uncontrollable and potentially unsafe PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The chair manufacturer is responsible for always ensuring type to install it on a different chair type Control systems with different part numbers may have both hardware and software differences to ensure that they are compatible with the electrical and dynamic characteristics of their specific target vehicles The characteristics of one type of control system may not be compatible with a different unauthorized chair Failure to observe this warning could result in an unsafe set up for the wheelchair user and may create a fire hazard depending on the motors wiring connectors and circuit breakers installed on the unauthorized chair PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Chapter 2 section 6 Users must not transfer a control system from one chair 245 Off board Charging Always use an off board charger fitted with a Neutrik NC3MX plug Failure to observe these conditions could result in poor contact resistance in the charger connector resulting in overheating of the charger plugs This presents a potential burn hazard for the user PGDT accepts no liability for losses of any kind arising from failure t
123. then the drive will be fully inhibited when the connection to Inhibit 2 is of a resistance within the range of Band For a detailed example of actuator inhibits refer to section 6 15 2 63 Inhibit Operation This pararneter is only relevant if one of the Inhibit 2 Speed Limit in Band x values is set to 0 i e a drive inhibit The parameter can be set to Latching or Non latching If set to Latching remove the inhibit then the VR2 must be switched off and on again to resume drive after an inhibit condition has occurred If set to Non latching then drive will be possible as soon as the inhibit condition is removed If Inhibit 2 is set to latching then the TruCharge battery gauge will flash 6 bars to indicate a trip See Chapter 1 section 8 3 6 4 Inhibit Debounce This parameter sets the amount of time connection to Inhibit 2 input must be stable before it is interpreted as a valid condition This parameter is particularly useful for switch types that exhibit bounce such as mercury switches which are often used on tilt mechanisms The parameter is programmable between 100ms 4000ms in steps 100ms 65 Seat Reversal The input Inhibit 2 can be configured to provide a seat reversal function Seat reversal is used on wheelchair models which can be converted from rear wheel drive to front wheel drive by rotating the seat through 180 The parameter for adjustment is Seat Reversal the effect of this parameter is explaine
124. three parameters Inhibit 2 Lower Level Threshold Inhibit 2 Middle Level Threshold and Inhibit 2 Upper Level Threshold The diagram below shows the concept VR2 THRESHOLD BAND RELATIONSHIP 100 Upper Threshold Level Middle Threshold Level Lower Threshold Level 0 100 corresponds to a resistance of 10KOhm or greater including an open circuit on pin 2 of Inhibit 2 0 corresponds to a short circuit between pins 1 and 2 of Inhibit 2 Each of the Level Threshold parameters can be set to a value of 0 to 100 in steps of 1 meaning the range of each band is programmable This allows for versatile programming of drive inhibit speed limit and actuator inhibit conditions from just one input For details of drive inhibit and speed limit programming refer to section 6 2 For details of actuator inhibit programming refer to section 6 12 6 2 Inhibit 2 Speed Limit in Band x This section must be read in conjunction with section 6 1 There are 4 parameters that can be set Inhibit 2 Speed Limit in Band O Inhibit 2 Speed Limit in Band 1 Inhibit 2 Speed Limit in Band 2 Inhibit 2 Speed Limit in Band 3 SK77898 3 6l VRZ Controt System PG DRIVES TECHNOLOGY Each is programmable between 0 and 100 in steps of 1 The value in each band s parameter sets the wheelchair s maximum driving speed when the VR2 s Inhibit 2 input is in that band For example if Inhibit 2 Soeed Limit in Band 3 is set to 0
125. tor or defective brake 2 45 Batteries discharge very quickly The batteries can discharge very quickly for several reasons these are described below Worn or damaged batteries check battery condition Charger defective or incorrect charger being used check charger operation refer to wheelchair s operating manual Incorrect batteries being used refer to wheelchair manufacturer s instructions for correct battery types One motor or brake jamming capacity Therefore if the temperature is lower than normal the wheelchair s range will be reduced In this situation the TruCharge battery gauge still gives an accurate state of charge reading The ambient temperature has a significant effect on battery 25 Trip Diagnosis There are two methods of trip diagnosis 251 Trip diagnosis with the TruCharge The TruCharge Flash Codes are illustrated in Chapter 1 Section 8 5 SK77898 3 DRIVES TECHNOLOGY 6 Servicinc amp Diacnostics 2 5 2 Using a programmer to read the trip code If you connect a programmer while the TruCharge display is flashing rapidly then a four digit trip code will be displayed Refer to the trip code table in section 3 after the TruCharge display has started flashing If the programmer is already connected when the flashing commences the trip code will not be displayed You must connect the programmer to the control system SK77898 3 VRe Controt System PG
126. trol system if you keep exposure to extreme conditions to a minimum Do not expose your control system or its components to damp for prolonged periods If the control system becomes contaminated with food or drink clean it off as soon possible 23 Cleaning Clean the control system and the joystick with a cloth dampened with diluted detergent Be careful when cleaning the joystick Never use abrasive or spirit based cleaners SK77898 3 3 VRZ Controt System PG DRIVES TECHNOLOGY 3 Controls The VR2 control system has four versions of the front control panel with and without actuator control Most of the controls are common to all versions however the actuator buttons are only included on VR2 control systems with seat actuator control Each of the controls is explained within this section For Lighting controls refer to Chapter 4 VR2 USER CONTROLS Joystick Control Panel Charger and Programmer Socket Front Control Panel Details No Actuators With Actuators 4 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 1 OPERATION VR2 CONTROLS 0000 ow Oo Battery Gauge O On Off Button Horn Button Q0000 Maximum Speed Profile Indicator a Speed Profile Decrease Button p Speed Profile Increase Button 2 Actuator Buttons On Off Button and Battery Gauge The on off button applies power to the control system electronics which in turn supply power to the wheelchair s motors Do not
127. ty for losses of any kind arising from the unexpected stopping of the wheelchair or from the improper use of the wheelchair or control system Although the VRe control system is designed to be extremely erratically or shows abnormal signs of heating sparks or smoke Turn the control system off at once and consult your service agent PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Do not operate the control system if the chair behaves Interference EMI Such interference may be generated by radio stations TV stations other radio transmitters and cellular phones If the chair exhibits erratic behavior due to EMI turn the control system off immediately and consult your service agent PGDT accepts no liability for losses of any kind arising from failure to comply with this condition Electronic equipment can be affected by Electro Magnetic IO 5K77898 3 PG TECHNOLOGY CHAPTER 1 OPERATION It is the responsibility of the chair manufacturer to ensure that the wheelchair complies with appropriate National and International M C legislation PGDT accepts no liability for losses of any kind arising from failure to comply with this condition The wheelchair user must comply with all wheelchair safety warnings PGDT accepts no liability for losses of any kind arising from failure to comply with this condition SK77898 3 VRZ Controt System PG DRIVES TECHNOLOG
128. urers Nevertheless manufacturers must confirm these recommendations by carrying out suitable tests ISO 7176 14 states that the minimum operating time for the circuit breaker when the wheelchair is stalled is 15 seconds The chair manufacturer must install a suitable circuit breaker to provide protection against short circuits in the battery wiring power loom or the control system Failure to comply with this could result in a fire hazard PGDT accepts no liability for losses of any kind arising from failure to comply with this condition 32 5K77898 3 PG TECHNOLOGY CHAPTER 2 INSTALLATION 5 4 Motor Wiring In order to detect the disconnection of a motor while the wheelchair is in motion the brake current must pass through the same connectors as the motor current so that disconnection of either motor will interrupt the brake circuit and trip the control systern Refer also to section 5 5 When the control systern is starting up or standing by it is able to detect a disconnected motor or a short circuit between a motor connection and either battery supply With the TruCharge battery gauge the number of flashing bars indicates the type of trip Auxiliary switches will disconnect the brake circuit if either circuit breaker operates In this way the control system can detect that the motor has been disconnected and stop the wheelchair Should the motor be put into a stalled condition the timed current foldback facility
129. urrent Foldback Time This parameter sets the maximum time the control system can be at current Foldback Threshold before the control system begins to reduce the available current Programmable between 0 and 250 in steps of 1 Second Current Foldback Level This parameter sets the percentage of current foldback when the control system is at the Current Foldback Threshold for a period greater than current Foldback Time The value is a percentage of the programmed Current Limit Max Programmable between 25 and 100 in steps of 1 Boost Drive Current This is the current the VR2 can deliver for the period of time set by Boost Drive Time Programmoble between 20A and the control system s maximum in steps of 1 Amp Boost Drive Time This is the length of time that the VR2 can deliver the Boost Drive Current for Programmoble between 0 and 10 in steps of 1 Second SK77898 3 7 VR2 Controt System PG DRIVES TECHNOLOGY Current Foldback Temp This parameter sets the temperature within the control system at which the current starts to reduce linearly Programmable between 25 and 70 in steps of 1 Degrees C It is important that the maximum values stated in the table VRe Current Management are not exceeded Example 1 Time Threshold Level The parameters Threshold Time and Level can be used to protect the motors from overheating If the motor current exceeds the value set by Threshold for a period set by Time then the VR2 s curre
130. ut By programming the Actuator Channel 1 Up Inhibit and Actuator Channel 1 Down Inhibit parameters as below it is possible to program the maximum angle of travel of the recline mechanism via the Inhibit 2 Threshold Level parameters Actuator Channel 1 Up Inhibit in Inhibit 2 Band 0 Inhibit in Inhibit 2 Band 3 Inhibit in Inhibit 3 Band 0 Inhibit in Inhibit 3 Band 3 Actuator Channel 1 Down Inhibit in Inhibit 2 Band O Inhibit in Inhibit 2 Band 3 Inhibit in Inhibit 3 Band 0 Inhibit in Inhibit 3 Band 3 SK77898 3 yes no no no no yes no no 67 VRZ Controt System PG TECHNOLOGY VR2 THRESHOLD BAND RELATIONSHIP 100 Band 3 4 Upper Threshold Level 2 Y Middle Threshold Level A Lower Threshold Level Y 0 This programming means that the Up movement will be inhibited when the Inhibit 2 input in Band 0 i e one end of recline travel and that the Down movement will be inhibited when the Inhibit 2 input is in Band 3 i e the other end of the recline travel Referring the Band diagram below it can be seen that by programming Inhibit 2 Upper Level Threshold and Inhibit 2 Lower Level Threshold then the actual angular range of the recline mechanism is adjusted Note Bands 1 and 2 are never used in actuator inhibits so to give maximum adjustment range in this example then Inhibit 2 Middle Level Threshold is set to 50 68 SK77898 3 PG TECHNOLOGY CHAPTER
131. ved from well proven field experience of various SK77898 3 3l VR2 Controt System PG DRIVES TECHNOLOGY international wheelchair manufacturers Nevertheless manufacturers must confirm these recommendations by carrying out suitable tests Keep wire lengths as short as possible Connections Wire Gauge Battery Motor Wires VR2 50 Battery Motor Wires VR2 60 70 Battery Motor Wires VR2 90 On Board Charger Wires Inhibit Wires Actuator Wires Battery motor and on board charger wires should use Tri rated PVC equipment wire rated at 105 C 53 Battery Wiring The control system incorporates sophisticated current limiting circuitry as protection for the circuits in the control system ISO 7176 14 requires you to provide protection against short circuits in the battery wiring and the power loom or in the extremely unlikely event of a short circuit in the control system Place a suitable circuit breaker in series with the battery supply refer to section 4 2 for example in the link between two 12V batteries If your batteries are held in separate enclosures you must provide a circuit breaker with each of thern The rating of the circuit breaker must match the capacity of the wiring used We recommend the use of a 70A circuit breaker for VR2 50 60 amp 70A systems and a 90A circuit breaker for VR2 90A systems This recommendation is derived from well proven field experience of various international wheelchair manufact
132. with the mounting connection wiring and setup procedures for the VR2 Control System Chapter 3 Programming This chapter gives an overview of the programmable parameters within the VR2 Control System Chapter 4 Lighting This chapter deals with the operation installation and programming changes created with the VR2 L Control System Chapter 5 Dual Attendant Module This chapter deals with the operation and installation changes created with the VR2 D Control System Chapter 6 Servicing amp Diagnostics This chapter deals with the servicable sections of the VR2 Control System Chapter 7 Warning Summary Lists all the Warnings used within the manual Chapter 8 Specifications Lists all the Electrical Specifications of the VR2 Control System ICONS PG Drives Technology will be abbreviated to PGDT throughout the manual Throughout the manual icons are used to draw the reader s attention The icons used are 2 Note A general point for best practice Caution A point of safety which if ignored could result in damage to the control system or the vehicle Warning A point of safety which if ignored could cause injury to the individual XII SK77898 3 PG DRIVES TECHNOLOGY CHAPTER OPERATION H CHAPTER I OPERATION SK77898 3 VRZ Controt System PG DRIVES TECHNOLOGY 2 SK77898 3 PG TECHNOLOGY CHAPTER OPERATION Introduction The relevant contents of this chapter should be i
133. with the speed control set to maximum 4 4 Gradient Test Before carrying out this test ensure another person is present to prevent the wheelchair from tipping backwards Drive the wheelchair forwards up its maximum rated gradient While on the gradient release the joystick and ensure the wheelchair comes to rest and the brakes are applied without the front wheels lifting of the ground Deflect the joystick forwards and continue driving up the slope Ensure the pick up is smooth and positive Stop the wheelchair and reverse down the gradient While on the gradient release the joystick and ensure the wheelchair comes to rest and the brakes are applied without The front wheels lifting of the ground SK77898 3 DRIVES TECHNOLOGY 6 Servicinc amp DiAaNosriCS 5 Servicing of Defective Units Excluding the items listed in Section 1 of this Chapter there are no serviceable parts in any of the PGDT control systems Consequently any defective units must be returned to PGDT or a PGDT approved service organization for repair Any replacement work carried out without the wheelchair manufacturer s permission will invalidate the control system s warranty Opening or making any unauthorized adjustments or modifications to a control system or its components will invalidate any warranty and may result in hazards to the vehicle user and is strictly forbidden unauthorized opening adjustments or modifications to a
134. ystem can only be repaired by an authorized person Refer to Section 5 3 9 Trip Type 9 Solenoid Brake Trip This occurs when the control system detects a problem in the solenoid brakes or the connections to thern 1505 Left Brake Trip 1506 Right Brake Trip Check these connections and the solenoid brakes If the trip is still present after the above checks have been made then the Power Module may be defective Refer to Section 5 SK77898 3 PG DRIVES TECHNOLOGY CHAPTER 6 Servicinc amp Diacnostics 310 Trip Type IO High Battery Voltage This occurs when the control system detects that the battery voltage has risen above 35V The most common reasons for this are overcharging of the battery or bad connections between the control system and the batteries Check the batteries and the connections to them If the trip is still present after the batteries and connections have been checked then the Power Module may be defective Refer to Section 5 Joystick Displaced at Power up The most common cause of this trip is if tne joystick is deflected away from center when The control system is being switched on When the control system is switched on the battery gauge will blink for a short time Check that the user is not deflecting the joystick before the blink finishes If the problern persists refer to section 37 Communications rror The most likely cause of a communications error is a defective cable

VR2 Control System - PG Drives Technology

Contents

Download Pdf Manuals

Related Search

Related Contents