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Summary of Contents for Syvecs X20-E8XX
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This document is intended for use by a technical audience and describes a number of procedures that are potentially hazardous. Installations should be carried out by competent persons only. Syvecs and the author accept no liability for any damage caused by the incorrect installation or configuration of the equipment.
Table of Contents Introduction ......................... 2 Specification ........................2 General Connections ......................5 Connecting Power/Ground ....................5 Example Schematic ......................5 Pin Schedule ........................5 Output Connections ......................6 Low Side Outputs ....................... 6 The low side outputs are only able to be driven to ground but offer full pulse width modulation control.
Introduction The Syvecs X20 E8XX expander is a very powerful device for controlling additional I/O (Inputs and Outputs) in an automotive electrical installation. With the use of CAN controllers, the X20 communicates with MoTeC devices to behave as a slave for it, offering the I/O compliment to its master device.
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DESCRIPTION CONNECTOR A PART NUMBER 4-1437290-0 NOTES: 34 Way - Key1 MoTeC Pinout Assignment Description PWR ON Ignition 12V Signal - Used only for Board Wake up DIG1 Digital Input - Frequency DIG3 Digital Input - Frequency 0-5V Input Only – Pull Up Optional 0-5V Input Only 0-5V Input Only Vbat...
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DESCRIPTION CONNECTOR B PART NUMBER 4-1437290-1 NOTES: 34 Way - Key2 Vbat 12V Supply - High Current (Required) Vbat 12V Supply - High Current (Required) AV13 0-5V Input Only AV15 0-5V Input Only 0-5V Input Only – Pull Up Optional 0-5V Input Only –...
General Connections Connecting Power/Ground The X20 has 5 power connection points, four of these are high current and can be connected to a fused battery power or switched power source. One of them is Logic Switch / Ignition Switch power and used to switch the power gate so that current is able to flow from the 4x High current 12v pins into the Device.
Output Connections Low Side Outputs The low side outputs are only able to be driven to ground but offer full pulse width modulation control. The outputs can be used to drive up to 12A Peak / 6A Continuous and can only pull to ground. Pin Schedule Pin Number Function...
Input Connections Digital Inputs These Inputs are able to swing above and below the reference ground meaning they can see Positive Voltage as well as Negative. Fully adjustable trigger thresholds for the frequency decoding is supported on these pins as well as optional 3k pull-ups to 5v. These are configurable via a USB connection to X20 (see page 14).
Sensor Schematics - Examples Manifold Pressure Sensor (MAP) Example Schematic Pin Schedule Pin Number Function Notes ANGND1 May be shared with multiple sensors 5VOUT1 Regulated sensor power supply AV16 Input Any Input can be used Coolant Temperature Sensor (CTS) Example Schematic Pin Schedule Pin Number Function...
Inlet Air Temperature Sensor (IAT) Example Schematic Pin Schedule Pin Number Function Notes ANGND1 May be shared with multiple sensors Needs external pull up Calibration Switches Example Schematic Pin Schedule Pin Number Function Notes ANGND1 May be shared with multiple sensors AV10 Needs external pull up...
Wideband Lambda Sensors The Syvecs X20 has the ability to drive two NTK L1H1/L2H2 Wideband Lambda sensors without the use of external hardware. Please see wiring and fitting information below Example Schematic...
NTK L2H2 The Syvecs X20 supports 2 x NTK lambda sensors which output the LTC CAN data to the Motec M1 range. Users are able to adjust the Linearisation, Heater frequency and Heater voltage via a USB connection to the X20 hardware using our Scal software (See page 14). The Default values are setup to suit a L2H2 NTK.
NTK wiring Lamda1 Lambda Colour Name X20 Pin Number Yellow Heater VBAT1 or 12V Switched Blue Heater Drive B30 - LamHTR1 Grey Nernst Cell Voltage White Ion Pump Current Black Signal Ground A25 or B18 Lambda2 Lambda Colour Name X20 Pin Number Yellow Heater...
CAN Bus Common Area Network Bus (CAN Bus) is a widely used data interface common used in many cars and aftermarket accessories (such as Data loggers and Dashes). Data is sent using the High and Low wires, which are maintained as a twisted pair. The X20 as default has 2 x CAN bus interfaces: CAN0 is used for expander communications with the MoTeC Ecu –...
MoTeC Setup The X20 can be set to communicate with MoTeC engine control units via the E8XX CAN protocol and the LTC CAN Protocol. Calibrators need to set the Exhaust Lambda Cylinder 1&2 LTC Index to Frame 0x460 Calibrators need to set the E8XX Can ID Base to 0xF0...
X20 to the computer. The S-Suite software can be downloaded from below. https://www.syvecs.com/software/ After running the SSuite installer, open the program called SCal and click Device - Connect A X20 device will be found as shown below, press Ok to proceed...
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The connected green icon should now be present in the top right and all the voltages/temps from onboard the X20 are listed on the right hand side. Calibrators now have the ability to change the Input setup for each AN Input, setup custom DataStream CAN options or use the output testing (see page 18).
Output Testing The X20 outputs can be tested live with our Syvecs - Scal program and information on connecting to the unit can be found in the PC Connection section of the manual. After connecting to the expander via USB, users will see an area at the bottom of the calibration tree called output testing.
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Do you have a question about the X20-E8XX and is the answer not in the manual?
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