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HCT epc User Manual Download Page 35

 

 

023-00354-Rev1.4      evc/epc 

User 

Manual 

    

 

Copyright © High Country Tek, Inc. – 2013 

 

35

 

evc/epc

 

Controller

  

With

 

SAE

 

J1939

 

Interface

 

SAE J1939 CAN Bus 

 

The evc/epc can be controlled by messages received over the SAE J1939 Bus. 

The EEC1 (PGN: 61444 SA: 0) engine RPM (SPN: 190) can be monitored for use in anti-stall and closed 
loop operations.  

The proprietary J1939 Command Message (PGN: 65281 through 65407 SA: 34) can be monitored for 
Coil A, Coil B and RPM Setpoints for various operation modes. This address is adjusted based on the 
Module ID. The relationship of the Module ID and the Command Message address is defined in a chart at 
the end of this section.  

The evc/epc can transmit its status over the SAE J1939 Bus. 

The proprietary J1939 Status Message (PGN: 65409 through 65535 SA: 34) is a multiplexed message 
with the first data byte indicating message 1 Status or message 2 Analog Values. This address is 
adjusted based on the Module ID. The relationship of the Module ID and the Status Message address is 
defined in a chart at the end of this section. When the J1939 Command Message is enabled, the Status 
Message will be transmitted.  If Report Analog Values is enabled on the J1939 tab, the Analog Values will 
be transmitted. The content of the Status and Analog Values messages are detailed below. 

 

Command Message Format 

Transmission Repetition 

40mS 

Data Length 

8 

Data Page 

1 

PDU Format 

255 

PDU Specific 

Module ID # 

Priority N/A 
Parameter Group Number 

65281 Through 65407 

(FF01 Through FF7F) 

Start Position 

Length 

Parameter Name 

1 

1 Byte 

Always = 1 

2-3 

2 Bytes 

Coil A Set point 

4-5 

2 Bytes 

Coil B Set point 

6-7 

2 Bytes 

RPM Set point 

 

 

 

 

 

Summary of Contents for epc

Page 1: ...any time and without notice This manual may contain mistakes and printing errors The information in this publication is regularly checked and corrections made in the next issue Please check our website or contact our customer support for latest version HCT accepts NO liability for technical mistakes or printing errors or their consequence evc epc Electronic Valve Controller User Guide ...

Page 2: ...enas including hydraulic generator e Fan and hydraulic fan system controls These controllers realize significant fuel emission and operational savings by optimizing the applications HCT s market neutrality offers dependable integration with any hydraulic OEM products for easy simple and accurate control of valves pumps sub systems or systems Our best in class customer service and product reliabili...

Page 3: ...gging 13 Dashboard 15 Output A or B Coil Settings 16 Manual Mode 19 Command Error Settings 20 Pulse Input Settings 23 Global Settings 24 Factory Settings 25 SAE J1939 26 Operational Modes 27 Hydraulic Valve or Pump Control 27 Anti Stall or Horsepower Management With Fixed Command 28 Anti Stall or Horsepower Management With Variable Command 30 Dual Output With Over Speed Protection 31 Constant Flow...

Page 4: ...ovement It may lead to possible injury or death Any moving parts should be disabled prior to changing setup values or operating modes In any case exercise caution and work should be completed only by qualified personnel Warranty Information High Country Tek guarantees this product to be free of defects in materials and workmanship for one year from the date shipped from the factory Within this tim...

Page 5: ...es with this module connected as damage can will occur Attempt to use this unit if you are unsure of electrical OR mechanical connections or expected operation Use a power supply that is not rated for the output current under full load Allow wires to or from the unit to short circuit to each other or chassis cabinet etc Use this controller in areas of intense Radio Frequency fields without adequat...

Page 6: ...AE J1939 2x switches ON Off 1x analog input 0 5V 0 10V 4 20mA 1x analog input 0 5V 0 10V Pulse or Freq 3 to 30KHz Input Impedance Voltage inputs 100k 4 20mA input 100 Outputs 2x 3A proportional PWM short circuit protection and open circuit alert 1x 5Vdc 10 regulated voltage max 250mA PWM Dither Freq Software adjustable 33 to 500Hz Module Connector DTF15 12PB 12 way Male Communication Mini B USB st...

Page 7: ...Controller Input vs Output NOTE All tests conducted at 70F ambient 24Vdc supply with 8 coil and Imin set to zero and Imax set to 1A 4 20mA Input Imin 0 05A Imax 1A The internal current shunt resistor is 100 0 to 5V Input Imin 0 Imax 1A The input impedance is 100K 0 to 10V Input Imin 0 Imax 1A The input impedance is 100K ...

Page 8: ...stem Requirements Windows XP Vista or Windows7 100MB or greater free disk space Insert the CD into the PC drive and follow the on screen instructions This will install the evc epc GUI manual and help files Install the Com Port drivers for the evc epc Start HCT Products Digital Controllers evc epc USB Serial Drivers CDMxxxxx_setup exe To insure a complete install run the CDMxxxxx twice The evc epc ...

Page 9: ...is 1 If the evc epc has been programmed with a different Mac ID you can search for the controller by Find Module or enter the Mac ID The Find Module will restart the operation when the unit responds with its information and Mac ID The MAC ID determines the module s Command and Status PGN addresses on the SAE J1939 bus The user may command many evc epc modules on a single J1939 bus Please see SAE J...

Page 10: ...EEPROM and to a data file that may be loaded later Settings will be lost if not permanently saved before power cycle Reset the unit with a power cycle you must remove both the USB cable and DC power from the unit Restore unit to last permanent settings saved Reload RAM with settings stored in the EEPROM This will undo all changes made since the last Permanent Save Restore unit settings from data f...

Page 11: ...r Anti Stall with Fixed Command 2 HP Limiting or Anti Stall with Variable Command 3 Single Coil Pump or Valve Control 4 Dual Coil Pump or Valve Control Environment The Environment Menu selects the terminology for load control In the Automotive Environment load control is called Anti Stall and in the Agriculture environment the same function is called HP Limiting Password Enter Password unlocks cer...

Page 12: ...ile may be viewed with Notepad Word or Excel About Controller Will display information about the evc epc the GUI revision serial number contact information etc Manual Will open the folder in C HCT products Digital Controllers or browse to other locations Exit Exits the evc epc GUI and frees up the com port and memory used by the application You can exit the GUI with or without saving the changes D...

Page 13: ...e Data Logging Log Data and save it in xls format The data can be as big as your PC memory capacity Each log begins with a list of unit settings and is followed by real time operational information The sample rate depends on the workload of the PC and the evc epc at recording A timestamp scales the logs appropriately Subsequent logs may be stored in a new file or appended to the original log file ...

Page 14: ...gs in the unit Adjust the Coil Settings first then other settings as needed In Agriculture or Automotive you will have Four files 1 HP Limiting with Variable Command Anti stall with Variable Command Monitors RPM the command in and adjust the output accordingly 2 HP Limiting with fixed command Anti stall with fixed command Monitors RPM and adjusts the output accordingly 3 Single Coil Pump Control V...

Page 15: ...ngs The Demand B will be Grayed Out when Coil B is disabled Coil Current A B displays the output current The Coil B Current will be Grayed Out when Coil B is disabled Enabled Disabled displays the current state of the enable input connection Command Volts mAmps Displays the voltage or current at the Command input pin 3 Reference Volts Displays the voltage at the User Reference output pin 2 Supply ...

Page 16: ... Current feedback ON OFF When Current Feedback is ON coil current output is monitored and adjusted proportionally to the demand within the coil max and min settings Current Feedback compensates the current due to supply voltage and coil temperature changes When disabled the output s waveform is adjusted proportionally to the demand between 0 and 100 PWM Duty Cycle Inverted ON OFF When Inverted is ...

Page 17: ...ycle matches the percent of demand The current will change when supply voltage and or coil temperature changes The evc epc does not declare an error because the output current 1 16A is not 0 5A higher than the max setting 0 7A The evc epc will declare an error because the output current 1 16A is 0 5A higher than the max setting 0 63A Ramp Up 001 to 65 000 Seconds Determines the time for Output A o...

Page 18: ...Open ON OFF When Ignore Open is ON and Current Feedback is ON the evc epc will not declare an error when the output duty cycle reaches 100 When Ignore Open is OFF and Current Feedback is ON the evc epc will declare an error when the output duty cycle reaches 100 When Current Feedback is OFF Ignore Open does not have any impact ...

Page 19: ...the max coil current for present conditions To unlock manual control enter the OEM password When the GUI is purchased the OEM password is included You can reset it just don t forget it Caution All settings on this tab are temporary and will immediately affect the outputs In manual mode all limits and controls are bypassed The evc epc goes back to normal operation when exiting the GUI in manual mod...

Page 20: ...r Active is ON Coil Selection Active pin 9 On Off When ON the state of the reverse input pin is used to determine which coil will be driven i e When the input is High 5V to Supply Volts coil B is active and when Low 0V to 2 5V coil A is active This feature allows the full command resolution on coil A and B It is used in the applications that a reciprocating action is triggered by a single high low...

Page 21: ... with the evc epc controller CSC 0505 accepts 5Vdc and converts to 0 5V CSC 1005 accepts 10Vdc and converts to 0 5V Loss of Pulse Signal Time 1 mS to 65 Sec Sets the time delay before a loss of pulse signal causes an error to be declared Coil A or B default set point 0 100 When Set Output A or B will ramp to this value when the limits are exceeded Command Limit Settings Pot Deadband The Pot Deadba...

Page 22: ... the min command value This demands 0 output If the command input is POT Minimum the Command Margin the evc epc will declare an error and the outputs go to the default settings Reference voltage is 5V 250mA HCT has a manual command potentiometer part number 999 10205 that outputs 0 5Vdc to 4 5Vdc when connected to a 5Vdc user voltage Auto Calibrate Pot Input Calibrate the command limits i e joysti...

Page 23: ... revolution PPR 1 to 65535 Scales the actual RPM from the measured pulse period Maximum displayed RPM 1 to 65535 It scales the RPM gauge on the Dashboard Keep this value near the maximum RPM to assure the best resolution and accuracy RPM slow Set Point or Max Load RPM 1 to 65535 The set point where coil A current starts to reduce in Anti Stall or HP limit modes RPM stop Set Point or No Load RPM 1 ...

Page 24: ...the unit Reverse set point 0 to 100 The percentage of the demand for coil B during the reverse cycle Fixed set point 0 to 100 The demand for coil A when the measured RPM is above the RPM slow or Max Load RPM in anti stall with fixed command or HP management with fixed command Recover from loss of signal When ON the evc epc automatically recovers after the pulse input and the analog input s are bac...

Page 25: ...the controller to the last permanently saved configuration Serial Number Specific for this unit reference to the factory record Start Date The date when the evc epc is connected to the GUI for the first time OEM Password Users may change the OEM password Just don t forget it When the GUI is purchased the initial password is included If lost please contact HCT ...

Page 26: ...ceive a J1939 message containing the measured engine RPM on PGN 0xF004 61444 SA 0x00 Timeout The box is red when the message has timed out Outputs will ramp to the default settings when the message timed out If Recover from loss of signal is ON the outputs will resume normal operation when the message is received MAC ID Displays and allows changing the MAC ID It is the network address for this spe...

Page 27: ... or Pump Control Coil A and B outputs may be driven independently for two Single Coil valves or for one Dual Coil Valve See Coil Settings Command Error Global Settings sections Dual Coil Valve or Pump Control Command Signal Input 0mA 0V 1V 2V 3V 4V 5V Coil A max current Coil A min current Coil B min current Center 2 5V Single Coil Valve or Pump Control ...

Page 28: ...ine to prevent the engine from stalling during a sudden load increase See Coil Settings Global Settings Pulse Input Settings sections When the measured RPM is above the RPM Slow 1800RPM Coil A operates at the Fixed Set point When the measured RPM starts to drop below the RPM Slow Coil A current is reduced proportionally to the measured RPM Coil A current becomes zero when the measured RPM reaches ...

Page 29: ...o the Reverse Set point After the reverse cycle is over if the measured RPM increases to above RPM Stop Coil A current increases proportionally If not the evc epc will try Reverse Retry Count times each time remaining in reverse for reverse time If the Reverse Retry Count is depleted and the measured RPM remains below RPM Stop the evc epc will declare an error At start up the measured RPM must ini...

Page 30: ... Anti stall with Fixed Command or Horsepower Management with Fixed Command The only difference is that this function allows a variable command input The input can be from an external POT a joystick or a SAE J1939 message The machine has automatic load reduction that prevents engine from stalling with full range of the input See Coil Settings Command Error Global Settings Tab Pulse Input Settings s...

Page 31: ...tion Dual Output With Over Speed Protection mode works with dual fixed displacement pumps and switches valves ON or OFF according to the measured RPM The measured RPM can be from the alternator R terminal or SAE J1939 When the measured RPM Set point A RPM coil A ramps up to maximum current When the measured RPM Set point B RPM coil B ramps up to maximum ...

Page 32: ...Flow Mode Constant Flow Mode operates with variable displacement pump It reduces the output of coil A to reduce the pump displacement when the engine rpm increases Thus it maintains constant flow of the pump When the measured RPM is 1500rpm output A provides max current When the measured RPM is 1800rpm output A provides 0 current ...

Page 33: ... DTF15 12PB Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 12 9 to 32Vdc supply input 5Vdc 250mA regulated O P Command Input CAN_H J1939 CAN_L J1939 0V Signal GND Pulse Input or analog input 2 Controller enable input high enable Manual Selection of Coil A or B Coil A Proportional output sourcing Coil B Proportional output sourcing 0V power GND ...

Page 34: ...es Reverse retry fail error RED 4 pulses Pot not centered at reset error ORANGE 1 pulse State error Communication Status LED GREEN steady Normal operation GREEN with ORANGE pulses Serial port GUI traffic ORANGE RED pulsing Receiving SAE J1939 traffic RED 1 pulse SAE J1939 set point message timeout RED 2 pulses SAE J1939 engine rpm message timeout RED 3 pulses Pot not centered at reset error ORANGE...

Page 35: ...oprietary J1939 Status Message PGN 65409 through 65535 SA 34 is a multiplexed message with the first data byte indicating message 1 Status or message 2 Analog Values This address is adjusted based on the Module ID The relationship of the Module ID and the Status Message address is defined in a chart at the end of this section When the J1939 Command Message is enabled the Status Message will be tra...

Page 36: ... bit Pulse Input LOS 2 4 1 bit Power Supply High 2 5 1 bit Power Supply Low 2 6 1 bit Coil A Msg Timeout 2 7 1 bit Coil B Msg Timeout 2 8 1 bit RPM Msg Timeout 3 1 1 bit not used 3 2 1 bit Reverse Cycle Active 3 3 1 bit Digital Input 1 State 3 4 1 bit Digital Input 2 State 3 5 1 bit Coil A Short 3 6 1 bit Coil A Open 3 7 1 bit Coil B Short 3 8 1 bit Coil B Open 4 1 1 bit Process A Ramping 4 2 1 bi...

Page 37: ...a Length 2 Bytes Resolution 1mA bit 0 offset Data Range 0 to 65535mA Operational Range 0 to 3000mA RPM Data Length 2 Bytes Resolution 0 125 rpm bit 0 offset Data Range 0 to 8 031 875 rpm Operational Range 0 to 8 031 75 rpm Analog Values Message Start Position Length Parameter Name 1 1 Byte Always 2 Analog Value 2 3 2 Bytes Command Input Value volts x100 or mA x100 4 1 Byte 0 Command Volts 1 Comman...

Page 38: ...1 FF91 60 FF3C FFBC 103 FF67 FFE7 18 FF12 FF92 61 FF3D FFBD 104 FF68 FFE8 19 FF13 FF93 62 FF3E FFBE 105 FF69 FFE9 20 FF14 FF94 63 FF3F FFBF 106 FF6A FFEA 21 FF15 FF95 64 FF40 FFC0 107 FF6B FFEB 22 FF16 FF96 65 FF41 FFC1 108 FF6C FFEC 23 FF17 FF97 66 FF42 FFC2 109 FF6D FFED 24 FF18 FF98 67 FF43 FFC3 110 FF6E FFEE 25 FF19 FF99 68 FF44 FFC4 111 FF6F FFEF 26 FF1A FF9A 69 FF45 FFC5 112 FF70 FFF0 27 FF1...

Page 39: ...how to clean and remove problem ports Option 1 Devices that have been installed but are not currently available are phantom devices These devices are not usually displayed in the device manager but can be made to be displayed This allows device properties to be changed or devices to be uninstalled even though the device is not physically connected to the PC Control Panel System Properties Advanced...

Page 40: ...panel Open the Device Manager View Show Hidden Devices Device Manager will show all hidden and phantom devices Uninstall the phantom devices by right clicking on them and delete Reboot the PC When you connect PC to the unit give the computer time to find and install the driver Option 2 In control panel Add or Remove Programs Remove old versions of FTDI software Remove Windows Driver Package FTDI C...

Page 41: ...gh Country Tek Inc 208 Gold Flat Court Nevada City CA 95959 Tel 1 530 265 3236 Fax 1 530 265 3275 Mining Exploration Agriculture Cranes lifts Refuse Recycling Construction Off Road vehicles Forestry Wood Pulp Reclamation Salvage Oil Field Sands Demolition Equipment Cooling Solutions Military Apparatus Specialty Use Remote Control Power Generation Emission Controls Integrated Drivers Valve Pump Con...

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