DELTA ECMA-E11310RS ECMA Series AC Servo Motor 1 kW

Product Overview

The ECMA-E11310RS (ECMAE11310RS) is a high-precision AC synchronous servo motor belonging to Delta's advanced ASDA-A2 ecosystem. Engineered for high-performance motion control, this 1 kW motor features a 130 mm frame size and is optimized for applications requiring a balance of high torque and exceptional feedback resolution. With its integrated 20-bit incremental encoder, the ECMA-E11310RS provides over one million pulses per revolution, ensuring extreme positioning accuracy in high-speed labeling, precision winding, and multi-axis CNC machining. The inclusion of a factory-installed oil seal and a robust 220V winding allows this motor to maintain peak performance in demanding industrial environments where exposure to lubricants or cooling agents is a standard operational factor.

Suffix Breakdown

The ECMA-E11310RS nomenclature defines the specific technical attributes as follows:

• ECM: Electrical Commutation Motor (Product Type).

• A: AC Servo Motor (Driving Type).

• E: Rated Voltage 220V / Rated Speed 2000 r/min.

• 1: 20-bit Incremental Encoder (1,280,000 pulses per revolution).

• 13: 130 mm Motor Frame Size.

• 10: 1 kW Rated Output Power.

• R: Configuration without brake, equipped with an oil seal and screw hole keyway.

• S: Standard Shaft dimensions for the 130 mm series.

Technical Specifications

Technical FAQs

How does the 20-bit encoder benefit my application compared to lower resolutions?

The 20-bit resolution provides 1,280,000 pulses per revolution. This high density allows the servo drive to perform more granular velocity calculations and smoother low-speed operation, which is critical for preventing "cogging" and achieving superior surface finishes in machining or high-accuracy placement in assembly.

Does this motor require a specific drive series from Delta?

While optimized for the ASDA-A2 series to leverage the full 20-bit feedback capability, it is also compatible with other Delta drives that support the physical and electronic characteristics of the ECMA 130 mm motor range. Always verify drive firmware compatibility for 20-bit incremental feedback.

What maintenance is required for the "R" type oil seal?

The oil seal is designed for life-long operation under standard conditions. However, in applications where the motor is coupled to a liquid-filled gearbox, inspect for fluid accumulation around the shaft interface during scheduled machine maintenance to ensure the seal integrity remains intact.

Engineering & Installation Guide

• Shaft and Keyway Integration: The "R" configuration includes a keyway with a screw hole. When mounting pulleys or couplings, ensure the set screw is tightened to the recommended torque to prevent mechanical backlash. Avoid using a hammer to seat components on the shaft, as axial impact can damage the high-resolution encoder bearings.

• Encoder Cable Protection: Due to the 20-bit sensitivity, ensure the encoder cable is double-shielded and routed away from high-current power lines. Use Delta-specified shielded connectors to maintain the signal-to-noise ratio required for millisecond-level positioning.

• Thermal Sink Requirements: The 1 kW motor generates heat during high-duty cycles. It should be mounted on a metal frame that acts as a heat sink. Ensure the mounting environment allows for natural airflow across the motor housing to prevent thermal protection trips during continuous 2000 r/min operation.