Tech Forum

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FT600 and Hardwire PDM.

I have wired the components per Fueltech's wiring diagram for brake switch, line lock, and transbrake. Is it best to wire an output from Fueltech to a Input on the Hardwire PDM to control all the functions? Any other suggestions on wiring is appreciated.

CAN outputs issue:

• when I set the last output to be larger than 8 bits, it becomes impossible to revert (permanently greyed out). Deleting the CAN message does not reset it either.

If the configuration has already been saved with this mistake, is there any way to reset a CAN message similar to the non-pro version?

Thanks

I have a PDM25 V2 and I am passing my inputs from my Holley Terminator X to the PDM. I have the "canned" functions of the Terminator X working good, but none of my user configurable inputs seem to be working. Does anyone have any advice? Just in case it matters my car does have a Pro Dash and an IO module as well.

has anyone tried to send an encoder signal to a pdm? I am not for sure if the PDM can even read the square wave signals produced by an encoder. i know i could send an encoder signal to a arduino and then through a dac to create a 0-5v signal or to a arduino and a can transceiver to create a can signal and then take either or input and control a dc motor to move to set location. but was curious if anyone had any insight on whether or not you could send the raw encoder square wave signal to the pdm directly and decode the position.

We have successfully configured the CAN link to receive data from the FT700 (CAN Input), but we now need to configure the PDM to transmit its data (CAN Output) to the FT700 to create a centralized log on the ECU.

Which PDM CAN Output setting (e.g., predefined stream, generic stream, or DBC export) should be used, and what is the specific CAN ID and message structure we must configure in the PDM to be compatible with the FuelTech FT700's input format?

Our goal is to stream critical PDM data (such as Output_X_Status and Output_X_Current) so that the FT700 can capture them in its own datalog.

We need to operate high-current devices (e.g., $40\text{A}$ starter motor solenoid, high-flow fuel pumps) that exceed the $10\text{A}$ and $20\text{A}$ continuous limits of the PDM's individual outputs.

What is the recommended method and corresponding PDM logic to activate a large external relay (e.g., $40\text{A}$ or $70\text{A}$ capacity)?

We intend to use a low-current PDM output (e.g., $10\text{A}$ output) only to supply power to the coil of the external relay, allowing the relay to handle the full load current directly from the main battery.

We are attempting to activate an output (Output X) persistently when the main battery is connected, without relying on the Ignition/Key-on Input (ignition on).

We confirmed that forcing the output ON works successfully while the PDM is connected via USB (using the Test Outputs feature).

However, when running on battery power alone (USB disconnected), the output fails to remain active. We cannot find a direct "Always ON" or TRUE setting that bypasses all other logic, including a potential dependence on the Pós-Chave line. What is the correct logical function to use to ensure an output remains ON whenever the PDM is powered, regardless of the Ignition Input status?

We are configuring an input for Active Low (Ground Switching from a FuelTech ECU). We cannot find a visible option to enable the Pull-up Resistor in the Inputs tab or the General settings. Does the PDM 25 V3 automatically enable the Pull-up resistor when Active Level: Active Low is selected? If not, where is this hardware setting located?