DELTA ECMA-E21310SS ASDA-A2/B2 Series AC Servo Motor

High-Torque Industrial Motion Overview

The ECMA-E21310SS (ECMA-E21310SS) is a heavy-duty synchronous AC servo motor engineered by Delta for high-precision, mid-inertia industrial motion control applications. Operating at a solid 1 kW rated output power, this electrical commutation motor delivers an optimized balance of speed and substantial driving torque. In demanding heavy-duty operations like multi-axis CNC machining centers, automated industrial printing presses, and continuous material feeding lines, the ECMA-E21310SS maintains absolute positioning integrity and curtails unexpected production downtime through its rugged 130 mm frame construction and integrated optical encoder. Outfitted with a heavy-duty internal electromagnetic brake, this motor ensures immediate load-holding safety and position lock during sudden power losses or plant-wide emergency stops.

Part Number Suffix Breakdown

Delta uses a standard alphanumeric matrix to layout the physical and electrical profile of the ECMA motor series:

• ECM: Electrical Commutation Motor (Product Type)

• A: AC Servo Motor (Driving Classification)

• E2: E2 Series Design Platform

• E: 220 V AC input rating / 2000 r/min standard rated speed

• 2: 17-bit incremental optical encoder configuration

• 13: 130 mm motor frame flange size

• 10: 1 kW rated output power capability

• S: Configured with an integrated holding brake, heavy-duty oil seal, and keyway with screw hole

• S: Standard specification shaft diameter

Critical Mechanical & Electrical Parameters

The following specification table defines the core electrical, mechanical, and environmental boundary conditions for engineering integration:

Technical Knowledge Base & Common Inquiries

What are the resolution advantages of the integrated 17-bit incremental encoder?

The 17-bit incremental feedback system yields a precise resolution of 131,072 feedback pulses for every single mechanical revolution. This level of resolution allows the matched servo drive to achieve superior speed stability at low operational frequencies and eliminates mechanical vibrations by feeding continuous positional adjustments back into the velocity loop.

How should the integrated oil seal be maintained for maximum operational life?

The integrated oil seal does not require manual maintenance but must be kept properly lubricated by the oil splash or oil bath of the attached gearbox to prevent dry friction wear. When mounting directly to open mechanical components, ensure that abrasive dust or sharp metal shavings do not accumulate around the shaft lip, as this can tear the rubber seal and compromise the internal bearing housing.

What is the power consumption behavior of the integrated mechanical brake?

The built-in electromagnetic brake operates on a standard 24 VDC external supply and is fully spring-loaded. It requires power to be continuously applied to release the brake mechanism and allow rotation. When the drive loses power, the brake engages automatically. Ensure that the external power supply is rated to handle the initial inductive inrush current of the internal coil without experiencing a voltage drop.

Field Commissioning & Safety Guidelines

• Mechanical Overhung Load Alignment: When mounting the 130 mm flange to rigid gearheads or direct timing pulleys, use a dial indicator to confirm shaft concentricity. Radial or axial alignment errors that exceed factory tolerances place undue stress on the front bearing, accelerating oil seal failure, inducing shaft fatigue, and generating high-frequency audible noise under high acceleration cycles.

• Inductive Arc Suppression and Brake Sequencing: Never wire the 24 VDC mechanical brake directly to the PLC outputs. Use an intermediate high-speed isolation relay equipped with a flyback diode connected in parallel with the brake coil. This configuration suppresses high-voltage inductive spikes that degrade switching contacts and ensures proper timing separation between servo-on activation and mechanical brake release.

• Enclosure and Motor Thermal Management: Install the motor in a space with an ambient temperature below 40 deg C. For continuous high-torque operations, ensure the motor is mounted to a substantial metallic structural frame to facilitate conductive heat transfer. Periodically blow off any accumulated oil mist, dust, or factory debris from the motor cooling fins to maintain efficient convective dissipation.