HYDRAULIC FAN CONTROLLER
Contents
1. yy Ly fifi T Pun edd Ghobai MAN Solutions TECHNICAL DATASHEET TDAX021500 HYDRAULIC FAN CONTROLLER Application Platform 3 Temperature Sensors 4 Digital Command Interfaces 1 PWM Input and 1 Analog Input 1 Proportional or ON OFF Current Output RS232 Port P N AX021500 Description The hydraulic fan controller provides precise repeatable control of 1 proportional or on off solenoid valve to adjust the speed of a hydraulic fan Fan speed is inversely proportional to the current through the valve Valve current control is based on up to three 2 wire temperature sensor inputs An additional analog input can be used for an override input or other function A 5V reference powers the override potentiometer One digital input can be used as manual control input to allow the fan speed in this mode to be set by the Override Potentiometer or analog input A PWM input is available for interface to an engine ECM electronic control module or PWM temperature sensor Three digital inputs allow for speed advance speed retard and fan reverse functions or other functions The robust design accepts 9 32V power supply input and is packaged in an IP67 rated housing with 24 pin connectors The controller is designed for remote mounting RS 232 port interfaces to PC with Tera Term freeware for user configuration and diagnostics Other hydraulic control applications beyond fan controls can be accommodated with this hardware and application specific2. 1 905 602 9270 Fax 358 3 3595 660 Fax 1905 602 9279 www axiomatic fi www axiomatic com Technical Specifications The specifications represent a particular hardware platform Application specific s w will be provided on request Input Specifications Power Supply Input Nominal 12 or 24VDC nominal 9 32 VDC power supply range Reverse Polarity Protection Analog Inputs Delphi sensors are accepted see Table 1 p n 12146897 coolant fluid temperature sensor p n 12110446 sealed air temperature sensor p n 121295956 exposed air temperature sensor The controller also accepts Honeywell NTC thermistors p n 50006023 001 see Table 2 The user may also select different sensors Sensors with a linear response are preferred Upon ordering provide details of the selected sensors specifications for factory programming the controller 3 temperature sensor inputs User specifies sensor range of temperature control and setpoints Common ground connection provided Temperature Sensor Inputs Sensors Ground Analog Input 1 Analog Ground PWM Temperature Input Digital Inputs 0 5V 0 10 VDC 4 20 mA 0 20 mA Option 0 25 4 75 V potentiometer 5K to 10K software feature Analog ground provided PWM Input PWM pulse normal reverse polarity up to 3 KHz Adjustable from 0 100 Duty Cycle 5 95 default For example the controller could interface to a PWM signal from an engine ECM or an external PWM temperat
3. Not Used Digital Input 2 Solenoid A Digital Input 3 RS 232 Receive DB 9 Female pin 3 Digital Input 4 Manual Mode RS 232 Transmit DB 9 Female pin 2 Not Used Not Used Not Used TDAX021500 5 RS 232 communications For further details refer to the user manual for the specific part number Using a PC and Tera term freeware the user can select between displaying system parameters changing system parameters setting the default values loading new software and showing the internal state of the controller diagnostics NB Tera term is freeware and is downloadable from http hnp vector co jp authors VA002416 teraterm html 1 Setting Up PC Communications to the Controller e Connect an RS 232 to DB 9 cable adaptor to the controller and a PC e Use a stable power supply With the power supply OFF connect the controller Power to the power supply Ground and the Power to the power supply e Open Tera Term Pro and set it up as shown below Free downloadable from http hp vector co jp authors VA002416 teraterm html e Select Serial with the appropriate COM port Tera Term New connection i x C TCPAP Host myhost mydomain M Telnet TCF porn 23 Cancel Help TDAX021500 e Go to Setup Serial Port and change the settings exactly as shown below Tera Term Serial port setup x Baud rate 115200 Data E bit Cancel Parity none Stop hon o Her Elow control
4. Xonfxoff Transmit delay lo msecfchar lo msecjline e Go to Setup Terminal and verify that New line Transmit and Receive are CR e Adjust the window size as desired by checking Term size win size Tera Term Terminal setup xX New line Receive CR Transmit CR M uto window resize Terminal ID vT100 Local echo Terminal size 120 x 50 iY Term size win size OK Cancel Help Hib Answerback Auto switch T lt gt TEK 2 Configuring the Controller Main Menu e To access the main menu for existing software turn ON power to the controller e Follow the prompts on the screen to view or to change the configurable parameters Specifications are subject to update without notice Form TDAX021500 12 04 07 TDAX021500
5. mp a Type Al1_type NTC NTC PTC_RTD Enumerator Al2_type NTC Delphi Not _ Active Al3_ type NTC 20 120 Analog Input Filter Frequency Al ff 50 60 Some ia are in PWM Input Low PWM_low 5 000 PWM Input High PWM_hi 0 100 Not_Active PWMI No EWI No Priory Speed Advance RPM_adv 0 100 Speed Retard RPM_ret 0 100 E R meem e e OO O Fan Reverse Maximum Output Current 0 2000 Fan Reverse Hold Time General Specifications MC56F8322 Control Logic Application specific software provided The controller can be factory programmed with a range of temperatures minimum and maximum temperature setpoints or a single temperature setpoint The priority of the digital inputs is factory programmed Interface RS 232 on board connection is available for setpoint configuration software upgrade and diagnostics RS232 serial communication interfaces to a serial port i e COM1 on a PC 115200 Baud Rate N81 Xon Xoff Flow Control Tera Term or Microsoft HyperTerminal or an equivalent data terminal Electrical Connections 24 pin Deutsch DTM series 24 pin receptacle DTM13 12PA 12PB R008 Mating plug Deutsch DIM06 12SA and DTM06 12SB with 2 wedgelocks WM12S and 24 contacts 0462 201 20141 20 AWG wire is recommended for use with contacts 0462 201 20141 Mating plugs are provided with prototypes only Use dielectric grease on the pins when installing the controller Packaging and Dimensions High Temperature Nylon housing Deu
6. put Resistance Table Temp Resistance Temp Resistance Temp Resistance Temp Resistance Deg C ohms Deg C ohms Deg C ohms Deg C ohms Note The table only applies between 20 C to 120 C Temperatures below this range are set to 20 C and temperatures above this range are set to 120 C Output Specifications Maximum Current Output High side driver High frequency PWM output 1 output up to 2A Solenoid A 1 proportional or 1 on off Overcurrent protection is provided Short circuit protection is provided Reference Voltage 5V 50 mA Output Current Adjustments l max specified by user configurable setpoint in software l set specified by user configurable setpoint in software I min Specified by user configurable setpoint in software All current settings are adjustable from 0 to 2 Amps Superimposed Dither Dither Amplitude 10 l max fixed Dither Frequency specified by user configurable setpoint in software Adjustable from 700 350 Hz Ramp Rate Ramps to I set specified by user configurable setpoint in software Adjustable from 0 5 seconds TDAX021500 Configurable Parameters The following table illustrates typical fan control software available on request Alternatively application specific software can be provided Se Variable Name Default Specified when order Specified when order Te
7. software Applications include Hydraulic Fan Drives and Industrial and off highway mobile applications for control of hydraulic valves Features e Independent output drives 1 solenoid valve on off or proportional Up to 3 analog temperature sensor inputs with 5V reference power One PWM input interfaces to an ECM or PWM temperature sensor Three active low digital inputs interface to switches fan reverse and other fan control commands etc One digital input can be used as manual control input to allow the fan speed in this mode to be set by the Override Potentiometer or analog input Universal analog input 0 5V 0 10V 4 20 mA 0 20 mA 5V reference can power a potentiometer Interfaces to a 9 32VDC power supply with reverse polarity protection Thermal overload and overvoltage protection provided User configurability is provided within factory preset ranges based on the application Rugged IP67 rated packaging with plug in connections Operational from 40 to 85 C 40 to 185 F RS232 interface to PC or laptop for user configuration and diagnostics Ordering Part Numbers Controller AX021500 For application specific s w please contact Axiomatic for a part number Accessories AX070000 Mating Plug Kit with DB 9 In Europe In North America Axiomatic Technologies Oy Axiomatic Technologies Corporation H yt m ntie 6 5915 Wallace Street 33880 LEMPAALA Finland Mississauga ON Canada L4Z 1Z8 Tel 358 3 3595 600 Tel
8. tsch IPD PCB Enclosure EEC 325X4B 4 62 x 5 24 x 1 43 inches 117 42 x 133 09 x 36 36 mm W x L x H excluding mating plug OEM specific packaging and connection styles are available TDAX021500 4 HOUSING DIMENSIONS Housing Material High Temperature Nylon Black 3D VIEW Housing with 24 Pin Receptacle 4 677 118 80 __ gt FRONT VIEW 24 PIN RECEPTACLE NOT TO SCALE Height 1 368 34 75 with 24 pin receptacle 3 976 101 00 Key Arrangement B black Mounting Holes 0 29 7 40 through 2 pl for 0 25 6 00 fastener Key Arrangement A grey Mounting flange 16mm 0 63 in thick Mating Plug Assemblies for 24 pin receptacle Deutsch IPD P N DTM06 12SA and DTM06 12SB with wedgelocks WM125 and contacts PCB Enclosure Deutsch IPD P N i 4 00 Contact factory for contact specification 101 60 Distance between mounting holes Dimensions inches mm BOTTOM VIEW excluding mating plug s Connections Typical Refer to installation instructions for a specific part number for actual pin out Key Arrangement B black Key Arrangement A grey FRONT VIEW 24 PIN RECEPTACLE Grey Connector Black Connector Pin Function Pin Function 1 5V Reference Protected 1 Temperature Sensor 1 Analog GND or RS 232 GND DB 9 Female pin 5 Temperature Sensor 3 Not Used Digital GND or RS 232 GND DB 9 Female pin 5 Battery PWM Input Battery Digital Input 1
9. ure sensor The controller accepts switched inputs or other digital inputs For example in a hydraulic fan drive application digital inputs can be specified to perform these functions fan direction CW CCW climate control ON OFF reduce flow speed retard speed advance Fan reverse has an additional programmed parameter of hold time Digital Input 1 Digital Input 2 Digital Input 3 Digital Input 4 MANUAL CONTROL Manual Control MC Active Low The manual control input switches the controller into the manual control mode The fan speed in this mode is set by the Override Potentiometer or analog input If MC is active the fan speed is determined ONLY by the Override Input If MC is passive the fan speed is determined by the temperature and PWM inputs Digital Ground Common digital ground connection provided shared as PWM input GND Table 1 Delphi Sensor Temperature vs Output Resistance Table Temp Deg C Resistance ohms 3511 2 95 Res 2 64 0 60 2 50 Ref Acc Deg C 0 60 C Temp Deg Resistance ohms 395 Res Ref Acc Deg C 2 07 0 60 2 04 0 60 2240 2 45 0 60 2 00 0 60 Note The table only applies between 20 C to 120 C Temperatures below this range are set to 20 C and temperatures above this range are set to 120 C TDAX021500 Table 2 Honeywell NTC Thermistor Temperature vs Out
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