Fieldbus Stepper Drive 2.2A: Compact EtherCAT Unit for Small Axes (2DM522-EC)

A 2.2 A Fieldbus Stepper Drive for Small Axes

The 2DM522-EC is a Fieldbus Stepper Drive 2.2A rated on a 24-48 VDC supply, delivered by Lyenwsin to machine builders who need low-current step axes on an EtherCAT network. Its modest current class matches small NEMA step motors, so it powers low-torque axes on compact machines without the cost and heat of an oversized drive.

Control Behavior for the Smaller Motor Class

Firmware tuned for these motor sizes keeps low-speed travel smooth and maintains torque at higher step rates. Customizable microstepping adjusts resolution to the axis, which matters on machines where a finer step size reduces mechanical noise.

Networking and local setup

The RJ45 connectors daisy-chain neatly in a cabinet, and the keypad/display sets slave ID, baud rate, and direction on site. Five inputs and two outputs cover home, limits, probe, brake, alarm, and in-position wiring.

Key Specifications

• Supply voltage: 24-48 VDC
• Output current: 0-2.2 A
• Fieldbus: EtherCAT
• Digital inputs: 5
• Digital outputs: 2
• Microstepping: customizable
• Protection: phase loss, overcurrent, overvoltage, disconnection

Application Scenarios

This drive earns its place on machines with many small, low-torque axes:

• Compact CNC equipment: table drives and tool magazines on desktop and small-format machines.
• Packaging machinery: small diverters, feeders, and registration rollers on a shared EtherCAT ring.
• Robotics and automated handling: gripper rotation, conveyor indexing, and peripheral mechanisms.
• Textile, printing, and food processing: light repeatable axes in low-voltage cabinets.

Selection Advice

Do not oversize the axis

2.2 A is plenty for small NEMA motors; selecting a higher-current drive for the same motor only adds cost and cabinet heat. Verify the motor’s rated current against the drive output.

Watch the supply rail

Keep the axis on a 24-48 VDC bus and check that the power supply can source the current without sagging during acceleration peaks. Lyenwsin can help you confirm the motor-drive pairing before you commit to a cabinet layout.