ECUs and data systems. This simplifies wiring and switch requirements, while increasing reliability. There are four PDM versions: PDM16, PDM32, PDM15 and PDM30. Throughout this manual all versions will be referred to as the PDM except where details specific to a particular version are discussed.
Introduction • Providing full diagnostic information, including output currents and voltages, input voltages, and error status • Transmitting diagnostic information via CAN to a display or data logging device or monitoring directly on a PC • Protected against unauthorised access by a password feature. Accessories •...
MoTeC Installation Installation Mounting When mounting the PDM take into account that the PDM may get very hot during operation. Ensure the PDM is mounted in a well ventilated area and not against a hot surface. For case dimensions see Mounting Dimensions. The internal temperature is highly dependent on ambient temperature and also on the total load current—a higher current will cause a higher temperature.
16 mm (6#) or 25 mm (4#). The PDM16 and PDM32 use an Autosport connector, PDM15 and PDM30 use a 6 mm eyelet to suit the wire size. The wire gauge should be chosen according to the wire temperature limit and acceptable voltage drop.
MoTeC Installation If the ECU does not have a shutdown input, the switch can be connected to a PDM input. The PDM can then turn off power to the ignition system or the ECU, which will cause the engine to stop. Battery Negative Both of the Batt–...
Installation Output Wiring All outputs are high side type outputs; they switch Batt+ to the output pin. They all have hardware thermal overload protection, fault logic and over- current logic. Paralleled Outputs Two or more output pins can be connected in parallel to increase current capacity.
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MoTeC Installation The wiper unit can be wired using an OEM wiper controller with the PDM supplying the power only. The OEM controller performs the intermittent and motor braking functions. 2. Two Switch Method The wiper unit can be wired in a simple two switch arrangement; one switch for power and the other to select fast or slow.
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Installation Slow operation can be achieved using the switch or using intermittent operation to give a similar effect which avoids the need for a high current switch. The fast/slow switch and on/off relay must handle the wiper motor current (typically 4 ampere). The control switches can be low current types since they only connect to PDM inputs.
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MoTeC Installation braking the motor when the high speed winding is turned on. The linked high speed wiper output can be configured in the Output 9 settings. Output 9 performs motor braking by momentarily shorting the output to ground when the output turns off. The PDM must be configured with the appropriate logic to perform on/off, speed selection, intermittent operation and wiper parking based on the state of the control switches and park switch input.
Installation Set the High Time and Low Time to 0.00s in the park switch input pin configuration so that the wiper is parked as soon as possible after reaching the park position. An sample configuration for this method is included with PDM Manager. Note: Version 2 hardware is indicated by the symbol 2 next to the engraved serial number on the PDM case.
MoTeC Installation Electronic Devices The PDM can supply power to electronic devices such as engine management systems, data acquisition systems, radios etc. Many electronic devices will have a short inrush current. The PDM will largely ignore this due to the Output Load filtering. See the Over-Current Shutdown section for details.
Installation CAN Keypads The CAN Keypads continuously communicate with the PDM which will prevent the PDM from entering its low power standby mode. Options for powering the keypads include: Configuring the PDM to always power the keypads. This allows buttons on the keypads to be used for master startup functions, but the PDM would never enter standby mode.
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MoTeC Installation • To start the program after installation, click Start > All Programs > MoTeC > PDM Manager Updating PDM Manager Software Software updates are available to give access to the latest features. Download the latest software version from the website and follow the software installation instructions to update to the new version.
Configuration Configuration The PDM requires various settings to be configured such as the maximum current settings for the outputs and the circumstances in which to turn the outputs on. The configuration settings are stored in a configuration file on the PC. Changes to the PDM configuration are performed ‘Offline’, i.e.
MoTeC Configuration Channels Channels are used to link the various systems within the PDM configuration. For example: The input pin system generates two channels for each configured input pin. Depending on the state of the input pin the input channel value will be zero or one.
• Configure Keypad settings for CAN keypads PDM Type and Serial Number The PDM type (PDM32, PDM16 etc.) and serial number must be configured correctly before a new configuration file can be sent to a PDM. A configuration can only be sent to the matching PDM to ensure the correct configuration of PDMs in applications with multiple PDMs.
MoTeC Configuration Output Pins Master Shutdown The Master Shutdown feature turns off all outputs that are configured for Master Shutdown, while a user configured channel is true. Any PDM channel can be used as the Master Shutdown channel. Each output pin can be individually configured to support or ignore the Master Shutdown channel.
Configuration Channel Name Description CAN Output InputName Input Status 0 = Off 1 = On InputName.Voltage Voltage on the input Resolution 0.2 V CAN Inputs The PDM can receive CAN messages allowing the outputs to be controlled by other devices. The PDM can be configured to receive CAN messages on up to seven different CAN addresses in the standard or extended address ranges.
MoTeC Configuration 16 Bit Unsigned Values A 16bit unsigned value is specified with a byte offset (the first byte of the value within the CAN message), an optional byte swap, a 16bit mask, and a divisor (1 to 255). The resulting channel will be an 8 bit value with a range of 0 to 255.
Configuration The PDM CAN bitrate is user configurable. All devices on the CAN bus must be set to the same speed. Refer to the Operation section for details about CAN bitrate configuration. Standard Messages The sets of fixed messages to be sent from the PDM are configured in Standard Messages.
MoTeC Configuration Tip: A condition can also be configured in the output pin setup. In this case the outcome of the logic function will not create a new channel but will be directly connected to the output channel. To configure a Condition or Counter •...
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Configuration selected current setting and are not adjustable. Tips: • The Output Load and Output Current values are transmitted via CAN so that they can be logged by another device. Check the logged Output Load value to ensure it is not too close to 100% during normal operation and during start-up.
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MoTeC Configuration driving the output turns off then on again). Master Shutdown If Master Shutdown is enabled on the output, the output will be turned off while the Master Shutdown channel is true. The Master Shutdown channel is configured in the Global Setup. Stay Alive During Standby Mode Up to four outputs can be configured to stay alive (i.e.
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Configuration to protect the wire from overheating, not to protect the connected device. • Some devices draw more current under circumstances such as high or low battery voltage. Also, a motor will draw increased current when under more load. Set a good margin and where possible check the Output Load value under these varying circumstances.
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MoTeC Configuration to any PDM output and configured to turn on when the Global Error channel is TRUE. The Global Error channel can also be transmitted via CAN to a display device and used to show an alarm message and activate an alarm light. Maximum Current for Typical Output Devices Lamps •...
Configuration Motors Electric motors draw additional current during start-up. Typically the start- up current is 3 to 5 times the steady state current and it dies out in less than a second. This start-up current is largely ignored by the PDM due to the Output Load filtering.
MoTeC Operation Operation CAUTION: The PDM may get very hot, do not touch the PDM during operation. To perform any of the activities in the Online menu, the PC needs to communicate with the PDM. When a configuration file is open in PDM Manager, it will connect to the PDM with the matching serial number.
Operation Monitor PDM shows the input-, output-, CAN input-, condition- and PDM status channels in separate screen areas in an easy to view layout. Test Outputs • On the Online menu, click Test Outputs All outputs may be manually turned on and off in PDM Manager to check the current levels.
MoTeC Operation Password Protection • On the Online menu, click Set Password The password will prevent unauthorised retrieving and sending of configuration files. It is not possible to update firmware if the PDM is password protected. Standby Mode The PDM has a low power standby mode to minimize battery drain when the vehicle is turned off.
Specifications General Battery voltage 30 V max, 6.5 V min Current consumption 35 mA typical operating 5 mA typical standby Total output current PDM16 PDM32 PDM15 PDM30 (continuous) 100 A 120 A 80 A 100 A Reverse battery Protection for PDM and all connected devices...
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MoTeC Appendices 20 Amp Outputs Number of 20 A outputs PDM16 PDM32 PDM15 PDM30 Maximum output current 20 A continuous, 115 A transient (typical) Over-current shutdown Programmable in steps of 1 A Protection Short circuit and thermal overload protection Inductive load clamp voltage –17 V (relative to Batt–)
Appendices CAN Input Channel Examples Sample received CAN message used in examples below Byte Value (hex) Channel Extraction Examples Offset Data Size Mask Byte 2 8bit Resulting channel: 0xF3 masked with 0xFF = 0xF3 Offset Data Size Mask Byte 2 8bit Resulting channel: 0xF3 masked with 0x02 = 0x02 Offset...
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MoTeC Appendices Offset Data Size Alignment Mask Divisor Byte 6 16bit (unsigned) Normal FFFF Resulting channel: (0xCC8A masked with 0x0FFF) / 100 = 523 so channel is clamped to 255 Typical CAN input channel application A CAN message contains a 16 bit RPM value with resolution of 1 RPM. Using a 16bit unsigned data type and a divider of 100 gives a resulting channel with a resolution of 100 RPM.
Appendices Fuse Characteristics Trip time versus over current multiplier at 10A 100.00 Trip time 10.00 1.00 0.10 Over current multiplier Max current setting [A] Trip time multiplier 100% 120% 140% Example: For 25 A current where max current setting is 5 A: Over current multiplier: 25 A / 5 A = 5 From Graph: Trip time (at 10 A) is approx.
Appendices PDM15 Connector A Connector B 34 pin waterproof connector 26 pin waterproof connector Mating connector #65044 Mating connector #65045 Function Function 20 A Output 1 (with A10) Not used 8 A Output 9 Not used 20 A Output 2 (with A12) 20 A Output 6 (with B9) 8 A Output 10 Not used...
MoTeC Appendices Wiring Wire Specification M22759/16 Insulation Material: Tefzel Conductor: Tin Plated Copper Voltage Rating: 600 V Maximum Temperature: 150 °C Wire Current Rating Current Rating Resistance Resistance Gauge at 80 °C ambient at 100 °C ambient [ohm/m] [ohm/1000 ft] (AWG) [A]* [A]*...
Appendices UTC Wiring for PC Connection To connect to a PDM through a MoTeC UTC (USB to CAN adaptor), a mating connector for the UTC must be wired to the PDM's CAN bus. The UTC connects to the PC USB port with a standard USB A-B cable. If the PDM does not connect to any other CAN device, it can be directly wired to the CAN connector.
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MoTeC Appendices Connector 100R Terminating These wires must be twisted Resistors at each Minimum one twist per 50 mm (2 in) end of the CAN Bus 500 mm << CAN Bus >> CAN-HI CAN-LO 500 mm CAN Device CAN Device CAN Device eg ADL3 eg M1 ECU...
Appendices CAN Output Messages The PDM transmits the following messages at 20 Hz. Note: only relevant messages get transmitted for a particular PDM type CAN Address Byte Bit Channel Scaling 4..7 Compound Id = 0 Input 1 State Input 2 State Input 3 State Base address Input 4 State...
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MoTeC Appendices CAN Address Byte Bit Channel Scaling 0..7 Compound Id = 0 0..7 Output 1 Current 0..7 Output 2 Current 0..7 Output 3 Current Base address 0 to 255 = 0 to 127.5 A 0..7 Output 4 Current 0.5 A steps 0..7 Output 5 Current 0..7...
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Appendices CAN Address Byte Bit Channel Scaling 0..7 Compound Id = 0 0..7 Output 1 Load 0..7 Output 2 Load 0..7 Output 3 Load Base address 0 to 255 = 0 to 255% 0..7 Output 4 Load 1% steps 0..7 Output 5 Load 0..7 Output 6 Load...
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MoTeC Appendices CAN Address Byte Bit Channel Scaling 0..7 Compound Id = 0 0..7 Output 1 Voltage 0..7 Output 2 Voltage 0..7 Output 3 Voltage Base address 0 to 255 = 0 to 51 V 0..7 Output 4 Voltage 0.2 V steps 0..7 Output 5 Voltage 0..7...
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Appendices CAN Address Byte Bit Channel Scaling 6..7 Compound Id = 0 0..5 Output 1 Status 0..7 Output 2 Status 0 = Output off 0..7 Output 3 Status Base address 1 = Output on 0..7 Output 4 Status 2 = Output Over-Current Error 0..7 Output 5 Status 4 = Output Fault Error...
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MoTeC Appendices CAN Address Byte Bit Channel Scaling 0..7 Compound Id = 0 0..7 Input 1 Voltage 0..7 Input 2 Voltage 0..7 Input 3 Voltage Base address 0 to 255 = 0 to 51 V 0..7 Input 4 Voltage 0.2 V steps 0..7 Input 5 Voltage 0..7...
Appendices Windows Keyboard Shortcuts When using a laptop in and around a car, it is often not practical to use a mouse to navigate through the program. Using the keyboard to select options is easier. Main Menu To access the main menu, press ALT + the key for the underlined letter in the menu, followed by the underlined letter of the item in the drop down menu.
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MoTeC Appendices Selecting an Item in a Window To access the various items in a window, press ALT + the key for the underlined letter of the item of interest, e.g. to select ‘Polarity’ press ALT + P Alternatively use the TAB key to move through the dialog box (use SHIFT + TAB to move backwards).
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Appendices Command Button Command buttons are generally used to show another screen or perform a particular function. Press ALT + the key for the underlined letter, or use the TAB key to navigate to the command button. To select, press ENTER or SPACEBAR. Drop-down List Box A Drop-down list box is used to select from a number of items, but only the selected item is shown until a new item needs to be selected.
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MoTeC Appendices Press ALT + the key for the underlined letter or use the TAB key to navigate to the Text Box, type in the new value or text. Use the BACKSPACE or DELETE to remove unwanted characters. Tree Structure A Tree Structure is used to select items from a hierarchical list The UP ARROW key moves the cursor up (selects the item above) The DOWN ARROW key moves the cursor down (selects the item below)
Appendices Glossary MoTeC Devices Advanced Central Logger ADL2 Advanced Dash Logger - second generation ADL3 Advanced Dash Logger - third generation Beacon Receiver Beacon Transmitter Computer Interface Module Central Logging System DBW4 Drive By Wire expander E816 Input/Output Expander E888 Input/Output Expander MoTeC data analysis software...
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MoTeC Appendices PDM30 Power Distribution Module with 30 outputs PDM32 Power Distribution Module with 32 outputs Professional Lambda Meter Real Time Clock Subaru Diff Controller Sport Dash Logger Strain Gauge Amplifier Shift Light Module Software Update Unit Traction Control Module...
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