HVAC ECM DRIVER BOARDS

M5 ECM Motor Driver Board

OEM Replacement HVAC ECM Motor Control Board

Sensored
≤250W
0–10V / 3-Speed
RS485 / Modbus

Variable Speed Control

External Driver Design

Smooth & Quiet Operation

OEM/ODM Customization

Request an Engineering Sample Download Datasheet

M5 external ECM motor driver board with capacitors, connectors and screw terminals

Product Description

M5 is a sensored external ECM motor control board designed for OEM replacement and customized HVAC fan and blower applications. It provides a drop-in replacement solution for compatible ECM / BLDC motor control boards and supports 0–10V variable speed control, 3-speed control, RS485 communication and FG speed feedback. The driver board can be matched and configured for specific motors based on motor characteristics, target RPM, airflow requirements and HVAC equipment operating conditions. Designed for HVAC OEM replacement projects, M5 provides a flexible external motor driver solution for fan coil units (FCU), air handlers (AHU), PTAC/VTAC units, ERV/HRV systems and other HVAC fan and blower equipment.

Specifications

Item	Specification
Model	M5
Max motor power	≤250W
Motor voltage	310VDC (motor)
Driver supply	15V
Speed control	0–5.5V
FG output	12 pulses / rpm
Speed levels	up to 30
DIP switch	5 positions
Dimensions	102 × 90 mm
Certification	CE / RoHS / UL / ETL / CSA compliance

102 mm

M5 ECM motor driver board measuring 102 by 90 millimetres

90 mm

Dual Motor Capability

Two motors 60–100W each (similar/equivalent).

Motor 1(60–100W each)

Motor 2(60–100W each)

Independent control
Custom configuration
Suitable for multi-fan systems

Control & Configuration

M5 ECM driver board diagram showing dual motor, speed controller, DIP switch and power wiring interfaces

Control Options

0–10V

Analog control

3-Speed

Multi-speed control

RS485

Modbus communication (optional)

DIP Switch

Parameter setting

FG Feedback

Speed signal output

Can M5 Work With My Motor?

Your MotorMotor nameplate / model number
or specifications

M5 Driver BoardWe can help you match and
provide the best configuration.

Send us your motor information
to get initial recommendations.

Send Your Motor Info

More Control Options

Flexible control interfaces for different HVAC motor and system requirements. Availability depends on the selected driver and application.

0–10V Control

PWM Control

Multi-Speed Control
(24VAC/230VAC)

Modbus RTU Communication

BACnet MS/TP Communication

Temperature Sensor Input

Fan Feedback
(FG / Hall)

Custom Control Logic

Technical FAQ

Can M5 work with my existing ECM or BLDC motor?

Yes. M5 can be matched to compatible ECM / BLDC motors based on motor voltage, power, speed, electrical characteristics and application requirements. Send us your motor model, nameplate, drawing or specifications for an initial evaluation.

What motor power does the M5 ECM motor driver board support?

M5 is designed for HVAC ECM / BLDC motor applications up to 250W (≈1/3 HP). Actual compatibility depends on the motor characteristics and operating conditions.

What speed control options does M5 support?

M5 supports 3-speed control and 0–10V speed control. RS485 / Modbus communication can also be configured depending on the project requirements.

Can M5 control two motors at the same time?

Yes. M5 can support two similar or equivalent motors, typically 60–100W each, subject to motor matching and application verification.

Can the M5 parameters and firmware be customized for my motor?

Yes. M5 is not limited to a fixed motor configuration. Motor parameters, control logic and firmware can be configured according to the motor characteristics and HVAC application.

Can I request an M5 sample for motor matching and equipment testing?

Yes. Send us your motor information and application requirements first. Our engineering team can evaluate compatibility, configure the driver and prepare a matched sample for equipment testing.