Q: What is the DM100-1E?
A: It is a high-current brushless DC motor driver board for custom robotic and servo-motion systems. It combines FOC, CAN control, UART tuning, and encoder or Hall feedback support.
Q: What input voltage should be used?
A: The model-specific table lists 24V as the supply reference and supports a 4S-12S battery range. Select the actual working voltage from the motor, battery charge voltage, required speed, and system margin.
Q: What is the maximum input voltage?
A: The model-specific absolute maximum is 85V. This is a survival limit, not a recommended operating voltage. Normal operation needs adequate margin for charge voltage, regeneration, and switching transients.
Q: Why do some supplied images mention 70V or 100A?
A: Those figures appear on a general promotional sheet. The model-specific DM100-1E table lists 85V absolute maximum, 40A continuous phase current, and 80A peak phase current, so those values are used for this product.
Q: What is the difference between continuous and peak current?
A: The confirmed values are 40A continuous phase current and 80A peak phase current. Peak current is for short-duration operation and must not be used as a continuous rating. DC bus current is also different from phase current.
Q: How is the motor connected?
A: Connect the three motor phases to the PCB terminals marked U, V, and W. Confirm phase order, insulation, conductor size, connector ratings, and strain relief before applying power.
Q: How does the board communicate?
A: CAN is used for control, and UART is provided for tuning. Supplied feature material states CAN FD support up to 5 Mbps, but the firmware, protocol version, bit timing, message IDs, and host interface must match.
Q: What does the CAN_RES switch do?
A: It switches the on-board CAN termination resistor between ON and OFF. Enable it only when the driver is at a physical end of a correctly designed CAN bus.
Q: Which control modes are supported?
A: The model-specific table lists MIT, speed, and position modes. Correct motor parameters, encoder direction, pole-pair settings, current limits, firmware, and command format are required.
Q: Which feedback sensors are supported?
A: The supplied table lists dual magnetic encoders or one magnetic encoder plus Hall feedback. Confirm sensor voltage, pinout, resolution, alignment, and firmware support.
Q: Can it connect directly to a 3.3V controller?
A: Do not connect CAN_H or CAN_L directly to GPIO. Use a compatible CAN or CAN FD transceiver or adapter. The UART logic level is not confirmed in the supplied model table and must be verified before direct connection.
Q: Is tuning software included?
A: Public tuning software and control examples are available separately. A USB-to-CAN adapter, UART adapter, cable, and software media are not confirmed as included with this board.
Q: Does the board need cooling?
A: Yes. High-current operation requires a thermal design appropriate to the current, switching conditions, airflow, mounting, ambient temperature, and duty cycle. No universal heatsink or temperature rating is confirmed in the supplied model table.
Q: What is included in the package?
A: The confirmed package content is one DM100-1E motor driver board. Motors, sensors, power supplies, adapters, cables, cooling parts, enclosure, and mounting hardware are not confirmed as included.
Q: Is the DM100-1E plug and play?
A: No. It requires motor and feedback compatibility checks, a protected power system, CAN or UART hardware, parameter setup, firmware matching, current limits, cooling, and safe mechanical integration.
Q: What should be checked before purchase?
A: Confirm motor voltage and current, battery range, required control mode, CAN or CAN FD protocol, encoder or Hall type, firmware, connector pinout, cooling, PCB revision, and whether you need separate adapters or cables.
