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IQAN-MDL2 Instruction book

1. Appendix C Dimensioning of the IQAN MDL2 module 81 Loa 206 E l i 9 v i Unit mm 41 Instruction book IQAN MDL2 For latest information visit our website www iqan com Information in this instructionbook is subject to change without notice Publ no HY33 8401 IB UK Edition 2011 08 04 Parker Hannifin Parker Hannifin Electronic Controls Division Electronic Controls Division SE 435 35 M lnlycke 1651 N Main Street Sweden Morton IL 61550 Tel 46 31 750 44 00 Tel 1 309 266 2200 Fax 46 31 750 44 21 Fax 1 309 266 6674 www parker com
2. 4 Safety Internal diagnostics The module performs a number of self checks that improve safety Checks include monitoring of voltage supplies checksums on memory and a watchdog that monitors software execution The module is using a real time operating system which supervises software execution If a critical error is detected the module is stopped with CAN bus and outputs off CAN bus interruption The IQAN MDL2 communicates with expansion modules on the CAN bus Both the master and the modules check for any interruptions in CAN bus communication If an error occurs the master will use zero or an application defined error value for the module inputs and the module outputs will be off The error will be presented with a related message on the IQAN MDL2 display Current check For the proportional outputs when used in current mode a current check is performed If an error is detected this will be indicated on the master module display and the output will shut off The module can detect open circuit short circuit to BAT BAT or short circuit to other propor tional output and return pins Emergency stop WARNING Risk of injury The emergency stop must disconnect the power supply to the module do not connect the emergency stop as a signal input only The emergency stop must be installed so that the risk of reverse feed of the module is avoided see section Emergency stop on page 16 Instruction book IQAN MDL2 11
3. IQAN MDL2 Instruction book Publ no HY33 8401 IB UK Edition 2011 08 04 t CA Q fi D A 7 SA Darker ENGINEERING YOUR SUCCESS Contents 1 Introduction ssaa ea Seite A A 1 WarnihgS acoso ake aaa DR op AA i Rede i a alas 1 Overview of relevant documentation llle 2 2 PFOCAUTIONS 5 sic aie a ce ee Sine ee Se eis ete Se a ab 3 Read TS Re A Me pees gts me ts ane I Na D 3 Design of control system 6 0 eee 3 Start up maintenance and diagnostics oooo ooooocooooo 4 3 Product description ssec n n nnn 5 IQAN MDE2 s chad naea Hebel ee RP TRA ei eet SPEaTRE 5 System overview eorr sa aa n lh hn 5 MO ia id a A OE pe E E ge nre et et 6 Voltage Inputs s e erm e et han ot NE ta n se e oi T x e e tele 6 Digital inputs oir sem meme Rd RO YR E ems 6 Frequency Inputs e iti S PCIe de 6 Proportional outputs 2 Rh 7 High power On Off outputs 0 cee ee 7 CAN related functions 0 0 ccc eee 8 Communication sis sre Soh pi MENS a YR EM wba boa 8 CAN aus a e E E A hearts ache NECE AMAL NA aT ase 8 ALI dees folded Be wie eed dr dele 8 USB cet ep Ron Ibo tadas anaheim il edd ug 8 HMI human machine interface lllle ee 8 Eeatures iia xat m ane RO CRUCE ROM BERS e dioe t ce MO Cure t 8 A ees Dex Hs seen
4. No forced cooling May give high internal temp 4 FAN Short circuited to heatsink No effect 5 FAN Short circuited to heatsink No effect 6 FAN_SPEED Open No effect Error detected gt FAN error Y FAN SPEED Short circuit to FAN No effect Error detected gt FAN error 8 FAN SPEED Short circuit to FAN No effect Error detected gt FAN error 9 FAN SPEED Short circuited to heatsink No effect Error detected gt FAN error 10 Fan jammed Error detected gt FAN error No forced cooling May give high internal temp 11 High internal temp due to high ambient temperature Error detected gt TEMP error 12 High internal temp due to jammed fan Error detected gt FAN error TEMP error Instruction book IQAN MDL2 36 Failure Modes Appendix B Failure modes for CAN interface Failure mode Effect CAN H to BAT No CAN communication All output turned off CAN L to BAT No CAN communication All output turned off CAN H to BAT No CAN communication All output turned off CAN L to BAT No CAN communication All output turned off CAN L open circuit No CAN communication All output turned off CAN H open circuit No CAN communication All output turned off CAN L to CAN H No CAN communication All output turned off CAN termination failure termina tion on No e
5. cuitry has power clamping diodes between the RET pins and BAT This arrangement creates a risk of inadvertently supplying power to the unit by forward biasing the clamping diodes There are two methods to avoid this Instruction book IQAN MDL2 22 6 Digital inputs Installation 1 The switch could be powered by the same source as the unit s BAT EXAMPLE Connect the positive and negative terminals of the switch to BAT position 28 and DIN M position 25 respectively c S A Fuse IQAN MDL2 BAT pos 28 Symbol for disconecting switch for battery ignition lock and other fuses DIN M pos 25 Connecting a switch to DIN M and BAT 2 The switch could be connected to DIN through a 1K ohm resistor EXAMPLE Connect the positive and negative terminals of the switch to supply and DIN M through a 1K resistor to position 25 respectively Supply I 3 IQAN MDL2 LT 1K ohm DIN M pos 25 Connecting a switch to DIN M and supply thru a resistor Instruction book IQAN MDL2 23 Frequency directional inputs 6 Installation Frequency directional inputs Connecting sensors to the frequency inputs Frequency inputs can operate in 2 modes Speed which is frequency and position which is a pulse count For the frequency ranges and trigger levels see Appendix A on page 31 Simple frequency sensor The positive ter
6. position 42 and VIN A position 18 respectively IQAN MDL2 VREF pos 14 VIN A DIN E pos 18 Switch Connecting a switch to VIN A and VREF NOTICE Maximum load for VREF position see Appendix A on page 31 Instruction book IQAN MDL2 21 Digital inputs 6 Installation It is recommended to connect system voltage BAT to the input through a switch in order to reserve 5Vdc VREF for sensors and potentiometers EXAMPLE Connect the positive and negative terminals of the switch to supply or the unit s BAT position 28 and VIN A DIN E position 10 respectively BAT IQAN MDL2 VIN A DIN E pos 18 Switch Connecting a switch to VIN A DIN E and BAT Digital inputs DIN A to DIN L The digital inputs DIN A to DIN D have low impedance characteristics DIN E thru DIN L share pins with VIN A to VIN H and have high impedance characteristics The above connec tion examples will apply to any of these inputs For impedance values see Appendix A on page 31 DIN M to DIN P When connecting switches to the digital inputs DIN M thru DIN P extra precautions should be taken Connecting switches to the digital inputs WARNING Risk of injury By sharing pins with the RET positions of the proportional outputs there is a possibilty of back ending the IQAN MDL2 unit when flexibly using those pins as digital inputs The internal cir
7. 1993 Fh Random vibration IEC 60068 2 29 1987 Eb Bump 0 1 g2 Hz 15 250 Hz 30 hours in each direction 40g 6 ms 1000 in each direction Climate environment IEC 60529 2001 Enclosure protection IEC 60068 2 1 1990 Ab cold IEC 60068 2 2 1974 Bb heat IEC 60068 2 30 1985 Db Damp heat cyclic TEC 60068 2 78 2001 Damp heat steady state IPx3 10 l min 5 min 30 C 16 hours 70 C 72hours 55 C 6 cycles 40 C 93 RH 21 days Chemical environment IEC 60068 2 52 1996 Kb Salt mist 3 days Instruction book IQAN MDL2 31 IQAN MDL2 Technical Overview Appendix A Recommended Operating Conditions Limit values Parameter Unit Remark min typ max Module diagnostic temperature Typ 30 80 C All operating conditions Module Diagnostic signal Update time on LCD will be reduced below 10 C Voltage supply Vgar 11 32 V a Recommended operating conditions are given for maximum and minimum conditions where nor mal performance is still available from the device Once the normal operating conditions are exceed ed the performance of the device may suffer System Ta 25 C unless otherwise specified Limit values Parameter Unit Remark min typ max Start up delay 900 ms Power to activated output Dither frequency DF 25 333 Hz System cycle time 10 100 ms Sample rate local I O 10 100 ms Output voltage on VREF 4 9
8. 5 0 5 1 V load 40mA Maximum load current on VREF 40 mA Varop lt 25mV 0 5 Var 11V to 32V 100 Varop lt 50mV 1 150 Varop lt 100mV 2 Current supply Backlight 100 Var 14V 580 mA Vpar 28V 320 outputs off fan off Backlight 0 no load on VREF Vran 14V 300 mA BAT Var 28V ne Keypad operating life 1x10 operations 10N Encoder operating life 1x10 operations 10N 1x105 rotations TFT backlight operating life 10000 hours Ta 25 C Brightness gt 50 of original value Fan operating life 10000 hours Ta 50 C Instruction book IQAN MDL2 IQAN MDL2 Technical Overview Appendix A 1 0 Ta 25 C unless otherwise specified Limit values Parameter Unit Remark min typ max VIN Voltage input Signal range low 0 0 05 V Signal range high 4 9 5 0 5 1 V Input resistance 62 kQ Signal resolution 5 mV Total unadjusted error 35 35 mV VREF as source 100 100 40mA External source DIN On off input Input low 0 8 V Input high 4 0 V Input hysteresis 1 0 V DIN E to DIN L Input resistance 5 6 kQ DIN A to DIN D 62 DIN E to DIN L 5 6 DIN M to DIN P DFIN Directional Frequency input Input low 0 8 V Input high 4 0 V Input resistance 5 6 kQ Input frequency low 2 Hz speed mode 0 position mode Input frequency high 30 000 Hz FIN Frequency input Input low 0 8 V Input high 4 0 V Input resistance 5 6 kQ Inp
9. CAN buses may be used for diagnostic pur poses The unit has two diagnostic communication ports RS232 and USB An additional RS232 connection in the main connector is dedicated for external modems The IQAN MDL2 also has multiple inputs and outputs that are designed to be flexibly config ured using IQAN software for measurement and control All I O are EMI filtered and protected against short circuit to BAT and BAT Instruction book IQAN MDL2 VO 3 Product description I O BAT gt CANH BAT ___ gt CANAL RTC 4 CANH omn VREF 4 MDL2 y CANH VREF q LLL CANAL CANH RS232 DATAIN y C N RS232 DATA OUT 4 PORT 0 gt gt PORT 2 gt DIAGNOSTIC Voltage inputs The IQAN MDL2 module has eight 8 voltage inputs VIN A thru VIN H for connection of 0 5 Vdc signals These inputs can be configured as digital inputs for reading switches Voltage inputs and digital inputs share positions see below 8 Voltage inputs VIN A VIN B VIN C VIN D VIN H or 8 digital inputs DIN E DIN F DIN G DIN H DIN L Digital inputs The MDL2 module has four 4 digital inputs DIN A thru DIN D DIN B and DIN C are multi purpose and can be configured in other ways Frequency inputs Frequency The input pin DIN B may be configured as a frequency input Instruction book IQAN MDL2 VO 3 Product description Directional frequency The input pins DIN B
10. Instruction book IQAN MDL2 12 Connector C1 6 Installation 6 Installation Connector C1 Connector kit Parker no 5031063 The connector contains two types of Housing Amp no 1 963226 1 terminals MT Micro Timer and JPT Junior Power Timer Casing Amp no 0 965643 1 Pin types Amp no 963711 2 MT Amp no 929938 1 JPT Cables 0 75 1 0 mm MT 1 5 2 5 mm JPT Seals Amp no 963530 1 MT Amp no 828905 1 JPT Plugs for empty pos Amp no 963531 1 MT Amp no 828922 JPT IQAN crimping tool Blue handle pos A Red handle pos B references use blue extraction tool use yellow extraction tool IQAN tool kit Parker no 5031061 BAT _ CAN H BAT CAN L RTC CAN H CAN L VREF LLL MDL2 y CANH VREF 4 CAN L CAN H RS232 DATA IN CAN L RS232 DATA OUT 4 DIAGNOSTIC Instruction book IQAN MDL2 13 Connector pin assignments 6 Installation Connector pin assignments Logical Pin nputor Function description Symbol No O utput and or Signal name s BAT 28 Power supply positive BAT 15 Power supply negative ground RTC 42 Power supply for Real Time Clock positive VREF 14 Voltage reference for external sensors Sourcing 5V VREF 1 Voltage reference for external sensors Return OV CAN A H 2 CAN high voltage bus line wi
11. Protect the PC and unit from damage due to ground loops and surges Ground loops can cause problems in communicating and in extreme cases the amount of current flow can damage the USB transceiver in the PC or the module A recommended way to prevent ground loops is to ensure that your system includes USB isola tion Isolation protects your PC from damage and preserves the integrity of your data by physi cally separating the electrical connections between the PC and the unit Good Using a battery powered laptop can prevent the formation of accidental ground loops and short circuits This protection only holds true however as long as the laptop is not also con nected to self powered devices such as printers Better Isolation can be provided by adding an isolated USB hub between the PC and the unit Best Use a CAN USB interface with galvanic isolation and communicate with unit via CAN bus This setup is used in the automotive industry for diagnostics RS232 modem connection C1 The IQAN MDL2 has an RS232 interface in connector C1 to communicate with external land line wireless or satellite modems for remote diagnostic capabilities A flying lead cable may be connected to the IQAN MDL2 to provide a DB9F connector interface The cables of this type are available from electronic supplier catalogs The connection from IQAN MDL2 to modem can then be made with the modem manufacturer s supplied cable The recommended wiring to the IQAN MDL2 connec
12. Re AG 20 Connecting sensors to the voltage inputs 20 Connecting potentiometers to the voltage inputs 20 Connecting switches to the voltage inputs 4 21 Digital inputs ere datada ted owas a daa whe steed 22 Connecting switches to the digital inputs 22 Frequency directional inputs o coocccocccocnoo 24 Connecting sensors to the frequency inputs oooooo ooo 24 Connecting sensors to the directional inputs 24 OUTPUTS 5b sb ds Bs tek ti 26 Back ending of module 0 0 cece eee 26 Connecting proportional valves and devices 27 Connecting loads to proportional outputs o oo ooooooooo 27 Connecting control relays and on off valves ooo ooo 27 LISTA EU A Wege ETE ERE CELEREM ERE EMU EE 29 Start up procedures aaran eea a cece rne 29 Starting the control system 0 00 cee eee 29 Prepare for system start 0 0 0 cette 29 Startthe system iia rr ERA 29 8 System Diagnostics oooooooornnnrrrn n n nnn 30 Diagnostic pages sx eee rb da dee ats 30 oaledAmode s m te aula hau da erdt e m s eed ut Sal eq tud 30 Appendix A anaes I9 eee ae le Fg ex MER RT E aTS 31 IQAN MDL2 Technical Overview selle 31 Absolute Maximum Ratings elles 31 Environmental ratings 0 0 00 eee 31 Recommended Operating Conditions
13. thru CAN D The buses may be configured using IQAN software to be ICP ICP IQAN CAN Protocol SAE J1939 or Generic user defined CAN protocol e g CANopen Communication The communication interfaces are used for uploading downloading applications or diagnostics and typically are connected to a computer CAN The IQAN MDL2 has 4 CAN buses Any of the CAN buses may be used for communication and diagnostics A CAN communication card is required to be installed in your PC to use this feature RS232 The IQAN MDL2 has two 2 RS232 interfaces One is in the 42 pin main connector C1 and is used to interface with external RS232 inputs i e modems The other is in the C2 connector a separate 10 pin connector and is used for communicating with a PC USB The MDL2 has a USB device only connection on connector C2 USB is a complement to RS232 for high speed PC communication and diagnostics for maximum voltage on USB pins see Appendix A on page 31 HMI human machine interface a 00000 SL The IQAN MDL2 front panel HMI Features IQAN MDL2 has a 6 5 transflective screen for easy readability in a wide range of ambient light conditions There are eleven buttons and a rotary encoder knob for input and menu selec tion The functionality of the different contols are listed below Instruction bo
14. voltage open loop proportional signals can be selected and the parameters config ured using IQAN software As a PWM output the specified frequency MR duty cycle signal is sent to the valve solenoid The return line is not monitored This type of output is intended for Pulsar type valves For flexibility the proportional outputs may also be configured as up to two 2 on off outputs and up to four 4 on off intputs The proportional outputs on off outputs and on off inputs share positions see below 2 double proportional outputs COUT A COUT B PWMOUT A PWMOUT B or 2 on off outputs DOUT G DOUT H Configuring as DOUT s allows the CRET pins to be used as on off inputs 4 total DIN M thru DIN P In order to increase the performance of proportional outputs when controlling proportional valves the dither frequency can be adjusted High power On Off outputs The IQAN MDL2 module has six 6 on off outputs that are high side power outputs These outputs may not be configured as proportional see below 6 On off outputs DOUT A thru DOUT F Instruction book IQAN MDL2 CAN related functions 3 Product description CAN related functions The IQAN MDL2 uses a CAN bus CAN Controller Area Network to communicate with IQAN expansion modules and other systems The CAN bus is a robust communication protocol that is widely used and well proven within the automotive industry The unit has four 4 CAN buses CAN A
15. 0020 eee 32 SST ti a o deep diva Mee eq e RS 32 NA re erat A n Rue e qr ipta A rers p cie Yada E E ad ahead 33 Appendix Be iue a 36 Error messages and actions 00 cece eee eee eee 36 Failure Modes te ee tee ete 36 Failure modes for FAN 0 0 eee eee es 36 Failure modes for CAN interface 0 0 0 ccc ee 37 Failure modes for VREF 0 cece eee ee ee ee eens 37 Failure modes for VIN 0 0 0 ccc ee eee ees 38 Failure modes for DIN 0 0 cece et ee eee 38 Failure modes for FIN 0 cece ee ee ee eens 38 Failure modes for DFIN 0 0 ee ee te eee ees 38 Failure modes in Current Mode 0 0 0 cece ees 39 Failure modes in PWM mode eee eee tees 40 Appendix C sis tices oe shee Pde eee re ee tele qe ees 41 Dimensioning of the IQAN MDL2 module eese 41 Instruction book IQAN MDL2 Warnings 1 Introduction 1 Introduction These instructions are to be used as a reference tool for the vehicle manufacturer s design pro duction and service personnel The user of these instructions should have basic knowledge in the handling of electronic equip ment Warnings Sections marked with a symbol in the left margin must be read and understood by everyone using the system carrying out service work or making changes to hardware and software The different symbols used in this manual are defined below
16. 1 Introduction Overview of relevant documentation The following publications are relevant for users of this product The main documentation contains information that is not found elsewhere The additional documentation contains product information in a compact format for details on the information found in those documents consult this manual Main IQANdesign IQAN MDL2 Instruction Book User Manual HY33 8401 1B this book Documentation Compact IQAN MDL2 IQAN MDL2 IQAN MDL2 Documentation Catalogue Datasheet Installation Sheet Electrical Schematic HY33 8401 HY33 8401 1S HY33 8401 ES The IQAN MDL2 module documentation system Instruction book IQAN MDL2 Read This 2 Precautions 2 Precautions Work on the hydraulics control electronics may only be carried out by trained personnel who are well acquainted with the control system the machine and its safety regulations WARNING Make sure that you have sufficient knowledge before designing modifiying or servicing the control system Read the relevant sections of this document before conducting any work on the control system WARNING This product is not field repairable NOTICE As much as possible of the welding work on the chassis should be done before the installation of the system If welding has to be done afterwards the electrical connections on the system must be disconnected from other equipment The negative cable must always be d
17. BM ULERPRICEEJumzetixiruf 9 B ltt ris 4 uw ede neath MERI RE E adu m pu E ah le 9 Display 5 ceca er n p E SEE et Ru Sie RR er ERR n 9 Eat A A PE ERICMEK ANM I Nea 10 Memory for logging 0 c eee RII III 10 a Safety v atk A orsa e LM iL ELE LU 11 Internal diagnostics ea a cee BIA 11 CAN bus interruption seiors nss etanat ae eee khp ai II 11 Gurrent check vais bee A A a pa AERA 11 Emergency Stop vitara acacia cado Rape tena de en es A eae 11 5 Mounting a 12 Mounting the IQAN MDL2 ssssle eh 12 Dashboard assembly 0 0 cee eee 12 FAN to PERSE RUD EX EIU VOU Rd 12 6 Installation liuc cou ERR nome noe ee ee m nin nen 13 Connector C 1 xxi VE dev duy Lee tada aa 13 Connector pin assignments 0 tee 14 Supply voltage variar RENI ede dds Me RUP 16 Emergency stop issues ta iia a e ein Ra Dk RR ei n 16 Connecting of Supply Voltage lisse eese 16 Polarity reversal coi big vp RESCUE SRM SERIE 16 Reference voltage VREF 0 0 e cece eee eee 17 Diagnostic interfaces 2 0 0 eet tee 18 CAN diagnostics connection o oooooccccoo ee 18 RS232 conmection C2 ee rean pay ic eae 18 USB Connection C24 iaa ante one ate op Reed ean aes 18 USB and ground loops differences in ground potential 19 Instruction book IQAN MDL2 Contents RS232 modem connection C1 0 nooo 19 Voltage Inputs 1 24 a ead Oe Ne ee ae ee
18. ET active Short circuit to BAT COUT error output turned off 9 RET active Short circuit to COUT error output turned off BAT 10 RET passive Short circuit to BAT Not detected will not influence function 11 RET passive Short circuit to COUT error output turned off BAT 12 COUT Short circuit to 2 nd COUT Not detected will not influence function passive 13 COUT Short circuit to 2 nd RET COUT error output turned off active 14 COUT Short circuit to 2 nd RET Not detected will not influence function passive 15 RET Short circuit to 2 nd RET COUT error output turned off active 16 RET Short circuit to 2 nd RET pas Not detected will not influence function sive 17 RET active Short circuit to same Not detected will influence function Valve will be pow channel RET passive ered on both solenoids effects are valve dependent 18 Insufficient Voltage Detected COUT saturated If measured current is less than half of command COUT error output turned off Instruction book IQAN MDL2 39 Failure Modes Appendix B Failure modes in PWM mode Table below presents failure modes and effects on I O Failure mode Effect 1 H side Open PWMOUT error output turned off 2 L side active Open PWMOUT error output turned off 3 L side passive Open Not detected will not influence function 4 H side Short circuit to L side PWMOUT erro
19. IQAN MDL2 Technical Overview Appendix A 1 0 Ta 25 C unless otherwise specified Limit values Parameter Unit Remark min typ max DOUT on off output Load current 2 A Voltage drop VgaT Vpour V load Ij 0 5A 0 2 load Ij 2A 0 8 Off State output current 10 uA DOUT A to DOUT F 1 8 mA DOUT G to DOUT H Max load inductance 200 mH 2A 1000 1A Short Circuit current limit 6 A Instruction book IQAN MDL2 35 Error messages and actions Appendix B Appendix B Error messages and actions If an error is detected a message will be presented on the display WARNING An error message could indicate that a hazardous situation exists If precautions are not taken this could result in death serious injury or major property damage Failure Modes The following tables contain information about the different possible failures that could occur for each module subsystem In most cases when an error is detected a message will be presented on the master display In some cases the master will turn off or at least shut down the outputs to increase safety Failure modes for FAN Failure mode Effect 1 FAN Open Error detected gt FAN error No forced cooling May give high internal temp 2 FAN Open Error detected gt FAN error No forced cooling May give high internal temp 3 FAN Short circuit to FAN If t Error detected gt FAN error
20. Mounting the IQAN MDL2 5 Mounting 5 Mounting Mounting the IQAN MDL2 NOTICE The IQAN MDL2 module should be mounted according to the following instructions Locate the module eliminating the risk for the cabling to be folded crushed or damaged in any way Ensure the cabling cannot pull twist or induce sideload on the connector Locate the module so that physical impact is avoided Locate the module so that air can circulate to eliminate excess heat Ensure that no external heat e g from the engine or heater is transferred to the module Locate the module to protect it from pressure washing and water directly spraying on the face or similar Protect the rear of the module from any type of spray or moisture The unit must be protected from spraying water Locate the module so that the PC connector in the back of the unit is accessible Locate the module so that the display is easily viewed NOTICE The IQAN MDL2 module must not be placed in any marine related or similar continuously damp environment without external protection Dashboard assembly When installing in a dash panel the recommended panel thickness is 1 0 3 5 mm Use type PT4 screws to mount included with bracket e Mv 08 1 0Nm U PT40 screw Mounting of the MDL2 with bracket Fan Allow at least 100mm 3 94 airspace for proper operation of the cooling fan NOTICE Do not install into an enclosure that restricts airflow
21. WARNING Sections labeled WARNING with a caution symbol in the left margin indicate that a hazardous situation exists We use warnings marked with the warning symbol in two ways e Asa strong recommendation about work practices when using the product in the machine e g routines when updating an application This use is common to the term hazardous sit uation that a person is exposed to a hazard Asa way of pointing out important information for the machine designer that in some way relates to safety This includes the design of the physical machine and also the application program being developed for the control system Not all document sections that contain information about safety are marked with a warning symbol there would be warnings everywhere Failure to comply with the recommendations can cause unintentional and unexpected behavior of the control system This can potentially cause death serious injury or property damage NOTICE Sections labeled NOTICE with a notice symbol in the left margin indicate there is important information about the product Ignoring this could result in less than optimal performance or damage to the product Contact the manufacturer if there is anything you are not sure about or if you have any questions regarding the product and its handling or maintenance The term manufacturer refers to Parker Hannifin Corporation Instruction book IQAN MDL2 Overview of relevant documentation
22. and DIN C may be configured as a directional frequency input for either a quadrature input or directional input Quadrature signals consist of two 90 degree square waves and are phase dependent Directional inputs have one square wave for the frequency plus a signal that is high or low to show direction and are considered level dependent Quadrature and directional inputs can operate in 2 modes Speed which is frequency with direc tion and position which is a pulse count with direction Digital inputs frequency input and directional frequency input share positions see below 4 Digital inputs DIN A DIN B DIN C DIN D or 3 digital inputs DIN A DIN C DIN D and frequency input FIN A or 2 digital inputs DIN A DIN D and quadrature input DFIN A DFIN A Proportional outputs The MDL2 module has two 2 double proportional outputs for controlling proportional valves These outputs can control two bi directional valve sections or two single solenoid devices ie proportional cartridge valves The proportional outputs can be used in different modes Current mode Current mode current closed loop proportional signals can be selected and the parameters con figured using IQAN software As a current output the specified frequency mA signal is sent to the valve solenoid The return line is monitored and the signal is modified by the controller to maintain the commanded output as the solenoid coil heats up etc PWM mode PWM mode
23. ffect CAN termination failure termina tion off Dependent on CAN size and number of CAN nodes Failure modes for VREF Failure mode Effect VREF Open VIN out of range will create a VIN error gt VIN Prede fined error value VREF Open VIN out of range will create a VIN error gt VIN Prede fined error value VREF Short circuit to VREF VREF error gt VIN out of range will create a VIN error gt VIN Predefined error value VREF Short circuited to BAT VREF error gt VIN out of range will create a VIN error gt VIN Predefined error value VREF Short circuited to BAT VREF error gt VIN out of range will create a VIN error gt VIN Predefined error value VREF Short circuited to BAT VREF error gt May cause damage to VREF circuit VREF Short circuited to BAT Not detected Instruction book IQAN MDL2 37 Failure Modes Appendix B Failure modes for VIN Failure mode Effect VIN Open VIN out of range will create a VIN error gt VIN Prede fined error value VIN Short circuited to BAT VIN out of range will create a VIN error gt VIN Prede fined error value VIN Short circuited to BAT VIN out of range will create a VIN error gt VIN Prede fined error value a Will require installation according to installation guidelines in chapter 6 see section V
24. i ometers and joysticks IQAN MDL2 VREF pos 14 VREF pos 1 VREF positions NOTICE Maximum load for the VREF is different according to 12 24 Vdc power supply see Appendix A on page 31 Instruction book IQAN MDL2 17 Diagnostic interfaces 6 Installation Diagnostic interfaces IQAN software includes many tools for tuning measuring accessing logs and otherwise check ing the performance or troubleshooting your control system To use the diagnostic tools with the IQAN MDL2 you may choose between different ways to connect to the unit C1 and C2 connector locations CAN diagnostics connection One of the four CAN buses of the IQAN MDL2 may be dedicated for diagnostics Reserving a bus for diagnostics ensures that signals are not interrupted by other bus traffic A high speed CAN interface is needed to use this feature Contact Parker for information about supported CAN interfaces A termination resistor is usually required at the CAN interface on the PC Parker part number 5030182 or an equivalent 120 ohm resistor may be used A flying lead cable may be connected to the IQAN MDL2 to provide a connector interface The connection fro
25. if connected to a voltage higher than 6V that is able to supply enough current to drive an external load The same type of situation is possible with flexibly configured digital inputs that share CRET pins see section DIN M to DIN P on page 22 Adjustable frequency To obtain the best performance from proportional valves the control produces a current mode closed loop output signal or a PWM voltage open loop output signal The type of output is selectable in IQAN software The MDL2 unit has an adjustable frequency which can be changed using IQAN software The table below shows the MDL2 frequency possibilities Any frequency may be entered in your application and is translated according to this table The bold values are the actual frequen cies in Hz output by the MDL2 for proportional valve control Frequency Hz Frequency Hz Frequency Hz Frequency Hz entered in appl output by MDL2 entered in appl output by MDL2 25 25 50 52 50 26 26 53 55 53 27 27 56 58 56 28 28 59 62 59 29 29 63 66 63 30 30 67 70 67 31 31 71 76 71 32 32 77 82 77 33 33 83 90 83 34 35 34 91 99 91 36 36 100 110 100 37 37 111 124 111 38 39 38 125 142 125 40 41 40 143 166 143 42 42 167 199 167 43 44 43 200 249 200 45 47 45 250 332 250 48 49 48 333 333 Instruction book IQAN MDL2 26 Outputs 6 Installation Connecting proportional valves and devices The current PWM outputs control proportional valves and de
26. in this docu ment Use the IQANrun software user manual as a reference Instruction book IQAN MDL2 IQAN MDL2 3 Product description 3 Product description IQAN MDL2 The IQAN MDL2 is a combined display and bus master capable of running applications created by IQANdesign software Built on a 32 bit platform the unit has large computational power and is capable of controlling complex applications The IQAN MDL2 module System overview A typical MDL2 system The master module IQAN MDL2 is the central unit in an IQANsystem IQAN MDL2 is a driver information unit and a bus master that is intended for the high end range of mobile hydraulic applications The IQAN system is a CAN Controller Area Network bus control sys tem for total vehicle control e g engine transmission working hydraulics supervision In most applications the MDL2 display can replace all mechanical dial type instruments The display in the module has very high optical performance across a wide operating tempera ture range and over a wide range of ambient light IQAN MDL2 has three main roles in a vehicle s control system master control unit informa tion display and data gateway to other systems The MDL2 has four CAN interfaces that support ICP IQAN CAN Protocol for IQAN bus communication The buses may also be configured for SAE J1939 or Generic user defined pro tocols e g CANopen Additionally any of the
27. isconnected from the battery before disconnecting the positive cable The ground wire of the welder shall be posi tioned as close as possible to the place of the welding The cables on the welding unit shall never be placed near the electrical wires of the control system Read This Design of control system WARNING Risk of injury may be introduced by design of control system This product is designed to control hydraulic outputs The control application must be designed using basic safety principles so that unintentional movement is avoided The machine must be equipped with an emergency stop that stops all movement Please refer to section Emergency stop on page 11 Before you start Read this document as a minimum sections 1 7 Read the IQANdesign software user manual section on application safety Instruction book IQAN MDL2 Read This 2 Precautions Start up maintenance and diagnostics For all personnel carrying out installation commissioning maintenance or troubleshooting WARNING Work on the hydraulics control electronics may only be carried out by trained personnel who are well acquainted with the control system the machine and its safety regulations Before you start Read section Start up on page 29 Additional information for service Mounting and maintenance instruction book Additional information for diagnosing the system Read section System Diagnostics on page 30 and see Appendix B on page 36
28. ition 13 and the chassis as ground A clamping diode must be placed as close to the load as possible see figure below IQAN MDL2 DOUT A pos 13 a y Connecting a load to the digital output NOTICE Q If the load is controlled in parallel with another system the digital output must be protected with a diode IQAN MDL2 AT DOUT A pos 13 pos ra di Digital output protected with a diode NOTICE For the maximum load per output see Appendix A on page 31 Instruction book IQAN MDL2 28 Start up procedures 7 Start up 7 Start up Start up procedures This chapter contains instructions for action to be taken in connection with the initial start WARNING Risk of injury If the control system is not fitted properly the machine could move uncontrollably The machine s engine shall not be started before the control system is completely fitted and its signals are verified Starting the control system Start the control system as follows Prior to start all modules and cables are to be fitted correctly Check fuses i e make sure that the supply voltage to the modules is equipped with the correct fuse Make sure that connections for supply voltage and return lines are correct in the cable s conductor joint Make sure an emergency stop is installed The emergency stop should disconnect the supply voltage to all modules Alternatively the emergency s
29. ll be HIGH in dominant state CAN B H 4 CAN C H 6 CAN D H 8 CAN A L 3 CAN low voltage bus line will be LOW in dominant state CAN B L 5 CAN C L 7 CAN D L 9 gt RS232 TD 30 RS232 data out RS232 RD 31 RS232 data in PO PO is an 8 pin input port with alternate functions on four inputs VIN DIN P0 0 18 l VIN A DIN E PO 1 19 l VIN B DIN F P0 2 20 l VIN C DIN G P0 3 21 VIN D DIN H P0 4 32 l VIN E DIN I P0 5 33 VIN F DIN J P0 6 34 l VIN G DIN K P0 7 35 l VIN H DIN L Note DIN E to DIN L have high impedance inputs 62K Ohm P1 P1 is a 4 pin input port with alternate functions on two inputs DIN FIN DFIN P1 0 22 l DIN A P1 1 23 DIN B FIN A DFIN A P1 2 36 l DIN C DFIN A P1 3 37 DIN D P2 P2 is an 6 pin output port DOUT P2 0 13 O DOUT A P2 1 27 O DOUT B P2 2 41 O DOUT C P2 3 12 O DOUT D P2 4 26 O DOUT E P2 5 40 O DOUT F Instruction book IQAN MDL2 14 Connector pin assignments 6 Installation Logical Pin nputor Function description Symbol No O utput and or Signal name s P3 P3 is a 6 pin input output port with alternative functions COUT PWMOUT DIN DOUT P3 0 11 O COUT A PWMOUT A DOUT G P3 1 25 O l CRET A PWMRET A DIN M P32 39 O l CRET A PWMRET A DIN N P3 3 10 O COUT B PWMOUT B DOUT H P3 4 24 O l CRET B PWMRET B DIN O P3 5 38 O I CRET B PWMRET B DIN P Notes If a COUT block COUT x CRET x CRET x is used all three pins are config
30. m IQAN MDL2 to diagnostic CAN interface can then be made quite easily It is recommended that the connector be a sealed automotive type When not being used this connector should be protected from the environment with a cover or mating blank plug The recommended wiring to the IQAN MDL2 connector C1 is shown below IQAN MDL2 T CAN D L pos 9 customer provided 120 ohm connector CAN D H pos 8 Connecting for CAN bus diagnostics RS232 connection C2 For uploading downloading and other communication with your computer connector C2 and 10 position cable 5030103 may be used for serial communication The C2 connector should not be used for permanent mounting to a computer USB connection C2 For uploading downloading and other communication with your computer connector C2 and 10 position cable 5030110 may be used for USB communication The C2 connector should not be used for permanent mounting to a computer Instruction book IQAN MDL2 18 Diagnostic interfaces 6 Installation USB and ground loops differences in ground potential When systems consisting of machines modules computers and other devices with different ground potentials are connected by a USB cable a ground loop may be created The grounds may only differ by a few millivolts or by much more This can be significant when compared to the low level voltage signals that are used in USB data transmission NOTICE
31. minal of the frequency sensor is connected to the VREF and the negative ter minal to the VREF respectively The sensor signal is connected to the FIN position If the current consumption for the sensor exeeds the maximum load for the VREF the sensor could be connected to the BAT BAT positions EXAMPLE Connect the positive and negative terminals of the frequency sensor to VREF position 14 and VREF position 1 respectively Then connect the sensor signal to FIN A position 19 IQAN MDL2 OIG e VREF pos 14 OR hd FIN A pos 23 FE bd VREF pos 1 Frequency sensor Connecting of frequency sensor NOTICE The negative terminal of the sensor must not be connected to the chassis Maximum load for VREF position see Appendix A on page 31 Connecting sensors to the directional inputs Quadrature sensors are phase dependent These sensors have two 90 degree out of phase square wave type signals for direction indication and frequency Directional sensors are level dependent These sensors have one square wave type signal for speed or position and one signal that is high or low to indicate the direction Quadrature and directional inputs can operate in 2 modes Speed which is frequency with direc tion and position which is a pulse count with direction For the frequency ranges and trigger lev els see Appendix A on page 31 Quadrature sensor The positive terminal of the quadrature sensor i
32. nditions Module Diagnostic signal Storage temperature T4 sT 40 80 C Voltage supply on BAT 6 5 36 V Reverse polarity protected with 20A fuse Voltage on any pin with 36 V Max voltage on USB respect to BAT signals D and D is 3 5V Maximum current into VREF 2 A Maximum current sourced by all outputs 16 A a The Absolute Maximum Ratings table lists the maxim um limits to which the device can be sub jected without damage This doesn t imply that the device will function at these extreme con ditions only that when these conditions are removed and the device operated within the Recommended Operating Conditions it will still be functional and its useful life won t have been shortened Environmental ratings Parameter EMI ISO 14982 1998 Radiated emission EN 55025 2003 Conducted emission CISPR 25 ISO 11452 2 1998 Radiated Susceptilbility ISO 11452 4 1998 Conducted Susceptibility ISO 7637 2 2004 Conducted transient susceptibility on power ISO 7637 3 2007 Conducted transient susceptibility on signal Remark Bb 30 75 400 1000MHz 64 54 65 65 dBiV m Nb 30 75 400 1000MHz 54 44 55 55 dBiV m 0 15 108 MHz class 2 200 2000 MHz 100V m 1 200 MHz 150mA pulse 1 2a 2b 3a 3b 4 Level 3 pulse 5 70V Level 4 ESD ISO 10605 2001 ESD 25 KV air front side of unit 15 KV air back side of unit 8 KV contact 8 KV contact handling Mechanical environment IEC 60068 2 64
33. ods of time For the best viewing over the life of the product we recommend using the screensaver functionality to prevent the burn in of a display page image NOTICE To avoid burn in use the screensaver on the display Maintenance The 6 5 transflective display is a high quality viewing interface and reasonable care should be taken to maintain it The display can be cleaned with an LCD cleaning solution found in many stores Use a lightly dampened lint free non abrasive cloth when cleaning the display NOTICE To avoid scratches do not wipe or clean a dry display Appearance Please refer to the IQANdesign software manual for display programming information Instruction book IQAN MDL2 Fan 3 Product description Fan The unit has a cooling fan and heatsink to remove heat from inside the enclosure Maintenance First clean the metal fins and fan housing with a brush to remove loose dirt and dust Avoid pushing debris into the fan After that we recommend that you clean in between the curved metal fin section and fan hous ing with a small brush or cotton swab to remove trapped dirt NOTICE Do not use compressed air to blast dirt off of the fan and heatsink You may cause damage to the fan Memory for logging The unit has an internal memory dedicated for logging events Memory logging is stored in 16Mbyte data flash with a power fail safe file system Instruction book IQAN MDL2 10 Internal diagnostics 4 Safety
34. ok IQAN MDL2 HMI human machine interface 3 Product description Encoder The encoder is of the Jog shuttle type rotary knob with pushbutton Pushing the knob equals enter The knob can be programmed so that its pushbutton feature can act as a virtual input button and perform some function depending on the current display page Rotating the shuttle knob can be programmed to adjust values select from items in a table or cycle thru display pages Buttons The buttons are arranged on the bottom and right hand side of the display Fl thru F5 function buttons Programmable softkeys that may be configured by the user to bring up a display page bring up an adjustment group or act as a virtual input Athru D function buttons Programmable softkeys that may be configured by the user to bring up a display page bring up an adjustment group or act as a virtual input Menu button three horizontal lines Always brings up the Menu page It is not programmable Esc or BACK button left arrow Returns you to the previous display page May be configured by the user to bring up a dis play page or act as a virtual input Display Brightness The brightness is easily adjusted by pressing the menu button and following the prompts to the backlight settings section Burn in The MDL s TFT display like other computer viewing screens can have a ghost picture occur if a static image is left on the display for extended peri
35. oltage inputs on page 20 Failure modes for DIN Failure mode Effect DIN Open No effect on module not detected DIN Short circuited to BAT No effect on module not detected DIN Short circuited to BAT No effect on module not detected Failure modes for FIN Failure mode Effect FIN Open No effect on module not detected FIN Short circuit to BAT No effect on module not detected FIN Short circuit to BAT No effect on module not detected Failure modes for DFIN Failure mode Effect DFIN Open No effect on module not detected DFIN Short circuit to BAT No effect on module not detected DFIN Short circuit to BAT No effect on module not detected Instruction book IQAN MDL2 38 Failure Modes Appendix B Failure modes in Current Mode The table below presents failure modes and effects on I O Failure mode Effect 1 COUT Open COUT error output turned off 2 RET active Open COUT error output turned off 3 RET passive Open Not detected will not influence function 4 COUT Short circuit to RET active COUT error output turned off 5 COUT Short circuit to RET Not detected will not influence function passive 6 COUT Short circuit to BAT COUT error output turned off 7 COUT Short circuit to BAT COUT error output turned off 8 R
36. p normally 9o gt Oe lt menu key arrow key Accessing the test pages Safe mode If necessary the IQAN MDL2 may be started in safe mode When started in safe mode no application is loaded and nothing is running The screen shows a default background and a dia log box notifies the user that the module is in safe mode This can be useful for installing an IQAN MDL2 with an unknown application in memory when retrofitting of new hydraulic com ponents has occurred or if a user has somehow changed the application in an unacceptable way To start in safe mode press the arrow key and hold during power up In safe mode you can then download a new application to the IQAN MDL2 To exit safe mode turn the unit off and power up normally 0000090 00000 arrow key Starting in safe mode Instruction book IQAN MDL2 30 IQAN MDL2 Technical Overview Appendix A Appendix A IQAN MDL2 Technical Overview Absolute Maximum Ratings Limit values Parameter Unit Remark min typ max Ambient temperature Trop 30 70 no external load no backlight Module Diagnostic temperature TMp 30 80 C All operating co
37. r output turned off active 5 H side Short circuit to L side pas Not detected will not influence function sive 6 H side Short circuit to BAT PWMOUT error output turned off 7 H side Short circuit to BAT PWMOUT error output turned off 8 L side active Short circuit to PWMOUT error output turned off BAT 9 L side active Short circuit to Not detected will not influence function BAT 10 L side passive Short circuit to Not detected will not influence function BAT 11 L side passive Short circuit to Not detected and direction activated without move BAT ment as result 12 H side Short circuit to 2 nd PWMOUT error output turned off L side active 13 H side Short circuit to 2 nd Not detected will not influence function L side passive 14 L side Short circuit to 2 nd L side Not detected will not influence function active 15 L side Short circuit to 2 nd L side Not detected will not influence function passive 16 Insufficient Voltage Not detected lower max speed limit on function Instruction book IQAN MDL2 40 Dimensioning of the IQAN MDL2 module Appendix C
38. r safety WARNING Risk of injury To reduce the risk for uncontrolled supply of the IQAN MDL2 i e a short circuit between the RTC cable and BAT a resistor must be connected between the battery and the RTC input This is important as this line is not controlled by an emergency stop The resistor should be placed close to the battery as the protected part is the cable between the resistor and the unit This will prevent the RTC wire from powering up the unit if shorted to BAT The same possi bility exists from a short to CRET wires when they are used as digital inputs refer to section DIN M to DIN P on page 22 IQAN MDL2 1 5K RTC pos 42 Emergency Stop c 20A e dE Ey BAT pos 28 BAT pos 15 Symbol for disconecting switch for battery ignition lock and other fuses Connecting the emergency stop and voltage supply NOTICE Do not use the chassis as the negative terminal Polarity reversal The IQAN MDL2 module is protected against power supply polarity reversal provided an external fuse max 20 A Fast is being used If this fuse is not used polarity reversal can damage the unit Instruction book IQAN MDL2 16 Supply voltage 6 Installation Reference voltage VREF The IQAN MDL2 module is internally equipped with a voltage regulator to generate the refer ence voltage VREF The standard reference voltage will feed different kinds of sensors potent
39. s Maximum load for VREF position see Appendix A on page 31 Connecting other 3 wire sensors The same type of connection shown for potentiometers is used for other 3 wire sensors supplied with power from the regulated 5VDC supply VREF This includes active temperature sensor IQAN ST pressure sensor IQAN SP and Hall effect levers IQAN LST or IQAN LSL Instruction book IQAN MDL2 20 Voltage inputs 6 Installation Connecting a 2 wire temperature sensor When you connect a PTC positive temperature coefficient temperature sensor you may need to use a pull up resistor on the input signal Please check the technical data for your specific tem perature sensor EXAMPLE Connect the negative terminal of the temperature sensor to VREF position 1 and the signal to VIN A position 18 The pull up resistor will be connected between VIN A position 18 and VREF position 14 IQAN MDL2 VREF pos 14 VIN A pos 10 VREF pos 1 Sensor Connecting VREF and temperature sensor signal VIN A The pull up resistor value for a Ry5 2000Q PTC sensor is 4 7 KO Connecting switches to the voltage inputs Switches could be connected to the voltage inputs to create a digital on off signal The switches should be connected to VREF and VIN DIN respectively for 5V signal The current consump tion for the input is negligible EXAMPLE Connect the positive and negative terminals of the switch to V REF
40. s connected to the VREF and the negative ter minal to the VREF respectively The sensor s channel A is connected to DFIN A and channel B to DFIN A positions Directional frequency sensor The positive terminal of the directional sensor is connected to the VREF and the negative ter minal to the VREF respectively The sensor output is connected to DFIN A and the sensor direction signal to DFIN A position Instruction book IQAN MDL2 24 Frequency directional inputs 6 Installation If the current consumption for the sensor exeeds the maximum load for the VREF the sensor could be connected to the BAT BAT positions EXAMPLE Connect the positive and negative terminals of the quadrature sensor to VREF position 14 and VREF position 1 respectively Then connect the sensor signals to DFIN A position 23 and DFIN A position 36 IQAN MDL2 e VREF pos 14 He DFIN A pos 23 e DFIN A pos 36 e VREF pos 1 Quadrature sensor Connecting of quadrature sensor NOTICE The negative terminal of the sensor must not be connected to the chassis Maximum load for VREF position see Appendix A on page 31 Instruction book IQAN MDL2 25 Outputs 6 Installation Outputs Back ending of module WARNING Risk of injury Digital outputs DOUT A to DOUT F and proportional outputs COUT A to COUT B have the potential risk to supply the unit backwards back ending
41. top may also shut off the diesel engine or a dump valve and with that depressurize the hydraulic system Prepare for system start WARNING Make sure no one is in dangerous proximity to the vehicle to avoid injuries when it starts Prepare for the initial system start as follows The engine for the hydraulic system s pump shall be in off position Make sure that all connectors are properly connected Turnon the control system Make sure that voltage is being supplied to all modules the power status diode shall be illuminated on all modules Also make sure that the master is in contact with all modules by reading the master s display Make sure the emergency stop is functioning properly Start the system Start the system as follows Start the engine for the hydraulic system s pump assuming that the above mentioned inspections have been carried out and shown correct values Calibrate and adjust input and output signals according to the instructions related to the master menu system and check each and every output function carefully Instruction book IQAN MDL2 29 Diagnostic pages 8 System Diagnostics 8 System Diagnostics Diagnostic pages The MDL2 has two test pages for production diagnostics These pages can be useful for obtain ing system diagnostic information To view the test pages press the menu and arrow keys simul taneously and hold during power up To exit test mode turn the unit off and power u
42. tor is shown below IQAN MDL2 VREF pos 14 Ll VREF pos 1 5 1 RENI RS232 TD pos 30 aloe 0 O 6 RS232 RD pos 31 DB9 F Connecting for external RS232 modem Instruction book IQAN MDL2 19 Voltage inputs 6 Installation Voltage inputs Connecting sensors to the voltage inputs The sensor signal range must be 0 5 Vdc To detect signal errors such as short circuits or inter ruptions the active signal range should be within 0 5 4 5 Vdc t Active signal range The current consumption related to the voltage input is negligible Connecting potentiometers to the voltage inputs The positive terminal of the sensor is connected to the VREF position and the corresponding negative terminal to the VREF position The signal is connected to the appropriate VIN posi tion The recommended values on resistors for good linearity and error detection are 100 ohm padding 1kohm potentiometer 100 ohm padding EXAMPLE Connect the positive and negative terminals of the position sensor to VREF position 14 and VREF position 1 respectively Then connect the sensor signal to VIN A position 18 IQAN MDL2 e VREF pos 14 VIN A pos 18 VREF pos 1 Position sensor Connecting VREF and potentiometer signal VIN A NOTICE The negative terminal of the sensor must not be connected to the chassi
43. ured as COUT If a PWMOUT block PWMOUT x PWMRET x PWMRET x is used all three pins are configured as PWMOUT If a DIN x or DOUT x is used in a block COUT x CRET x CRET x all three pins are configured as corresponding DIN x and DOUT X DIN I to DIN T are equipped with clamping diode risk for backending Shaded positions are Junior Power Timer pins Unshaded positions are Micro Timer pins See section Connector C1 on page 13 for wire seal pin number and crimping tool information The IQAN tool kit is found in the IQAN accessories datasheet Instruction book IQAN MDL2 15 Supply voltage 6 Installation Supply voltage WARNING Before any installation of the IQAN system can take place make sure the ignition lock is turned off and the battery is disconnected Emergency stop Make sure an Emergency Stop disconnecting the power supply is easily accessible at any time The figure below shows how to connect the emergency stop Connecting of Supply Voltage The supply voltage should be within the operating range see Appendix A on page 31 Connect the supply voltage to BAT position 28 and BAT position 15 Protect the module by using a fuse Requisite fuse level should be 20 A fast F RTC supply The real time clock RTC requires a separate positive power connection Connect the supply voltage to RTC position 42 through a 1 5K ohm resistor The resistor should be as close to the battery as possible fo
44. ut frequency low 2 Hz speed mode 0 position mode Input frequency high 30 000 Hz Instruction book IQAN MDL2 33 IQAN MDL2 Technical Overview Appendix A y o Ta 25 C unless otherwise specified Limit values Parameter Unit Remark min typ max COUT closed loop mode Signal range 100 2000 mA Load 3 5 Q Voltage drop VgaT Vcour V load Ij 0 5A 0 2 load Ij 2A 0 8 Off State output current 1 8 mA Short Circuit current limit 15 A Linearity error 15 mA 100mA to 1500mA Temperature error 15 mA Ta 40 C to 70 C 100mA to 1500mA Power supply rejection mA Rp 26025 Q Vgar7 11 18V 1 Vpat 24 32V 1 Load regulation mA Vgar 14V R 4 9 Q 1 Load 1000mA Vpat 28V R 22 34 Q 1 Load 500mA Dither frequency DF 23 333 Hz Resolution 0 1 mA Dependent on load 0 8 us power supply and dither frequency PWMOUT open loop mode Signal range 0 95 MR Pulse width low 63 us Pulse width high T 0 5 ms Pa LE DF Error limits min open load 25 mA Dependent on load power supply and dither frequency Error limits max over load 2000 mA Dependent on load power supply and dither frequency Voltage drop VgaT VpwMouT V load Ij 0 5A 0 2 load Ij 2A 0 8 Off State output current 1 8 mA Short Circuit current limit 6 A Dither frequency DF 25 333 Hz Resolution 0 1 MR Instruction book IQAN MDL2
45. vices For the current range and loads see Appendix A on page 31 Connecting loads to proportional outputs Connecting a load e g one proportional valve section to the current mode or PWM mode out puts is done by using the COUT CRET paired positions EXAMPLE Positive direction Connect the proportional valve to the COUT A position 11 and the CRET A position 25 respectively Negative direction Connect the proportional valve to the COUT A position 11 and the CRET A position 39 respectively IQAN MDL2 COUT A N Po X cox CRET A CRET A TT Directional Valve Connecting a load to a proportional output NOTICE Do not install diodes across coils for Current or PWM output modes Connecting control relays and on off valves The digital outputs control relays and on off valves Connecting loads to digital outputs Connecting of loads to the digital outputs such as on off valves is done by using the DOUT A thru DOUT F positions and chassis as ground Instruction book IQAN MDL2 27 Outputs 6 Installation Protection against voltage transients A clamping diode must be placed between the digital output and ground as close to the load as possible This protects the output against high voltage transients Use the diode 1N5408 3A 1000V or others may be OK depending on the load EXAMPLE Connect the on off valve to the digital output using the DOUT A pos

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