Delta ECM-B3M-EA1315SS1 1.5kW Servo Motor with 24-bit Encoder
The Delta ECM-B3M-EA1315SS1 is a 1.5kW high-performance AC servo motor from the ASDA-B3 series, designed for demanding industrial automation applications requiring precise motion control and robust performance. This medium inertia motor features a 24-bit absolute optical encoder and an integrated holding brake, delivering exceptional positioning accuracy and reliable holding capability.
Technical Specifications
| Parameter | Specification |
|---|
| Model | ECM-B3M-EA1315SS1 |
| Series | ASDA-B3 Series |
| Rated Power | 1.5 kW (1500W) |
| Rated Voltage | 220 VAC / 230V Class |
| Rated Speed | 2000 rpm |
| Rated Torque | 4.77 N*m |
| Peak Torque | 14.32 N*m (3x overload) |
| Rated Current | 8.7 Arms |
| Peak Current | 26.1 Arms |
| Encoder Type | 24-bit Absolute Optical Encoder |
| Encoder Resolution | 16,777,216 pulses/rev (single-turn) / 16-bit multi-turn |
| Inertia Type | Medium Inertia |
| Frame Size | 130 mm |
| Shaft Type | Keyway Shaft |
| Brake | With Holding Brake |
| Oil Seal | With Oil Seal |
| Protection Rating | IP65 |
| Insulation Class | Class F |
| Operating Temperature | -20°C to 60°C |
| Weight (with Brake) | Approx. 6.3 kg |
Key Features
24-bit High-Resolution Absolute Encoder
The ECM-B3M-EA1315SS1 is equipped with a 24-bit absolute optical encoder, delivering 16,777,216 pulses per revolution. This high-resolution feedback provides:
- Sub-micron positioning accuracy - Essential for CNC machining, semiconductor manufacturing, and precision assembly
- No homing required after power loss - Absolute encoder retains position data, eliminating re-zeroing downtime and improving operational efficiency
- Smooth low-speed operation - High resolution ensures stable motion even at minimal speeds, reducing velocity ripple and vibration
High Torque Density with 3x Overload Capacity
Delivering 4.77 N*m of continuous torque and 14.32 N*m of peak torque, this motor provides:
- Powerful acceleration and deceleration - 3x overload capacity enables rapid response to dynamic load changes
- Efficient load handling - Capable of managing moderate to heavy loads with consistent performance
- Improved cycle times - Faster acceleration reduces overall production time
Integrated Holding Brake
The built-in holding brake provides:
- Position holding during power-off - Prevents unintended shaft movement when power is disconnected
- Enhanced safety - Critical for vertical axis applications such as robotic arms and lifting mechanisms
- Simplified system integration - Eliminates the need for external brake components
IP65 Environmental Protection
The motor features IP65 protection rating, offering:
- Dust-tight enclosure - Complete protection against dust ingress
- Water jet resistance - Protected against low-pressure water jets from any direction
- Oil seal standard - Factory-installed oil seal provides additional contamination protection for harsh industrial environments
Medium Inertia Design
The medium inertia rotor design balances dynamic response with operational stability. This makes the motor ideal for applications requiring:
- Fast acceleration and deceleration - Superior response time compared to high inertia motors
- Stable motion control - Smooth operation even with varying load conditions
- Versatile application fit - Suitable for both high-speed and precision positioning tasks
Class F Insulation
With Class F insulation rated for 155°C, the motor delivers:
- High thermal tolerance - Reliable operation in high-temperature environments
- Extended service life - Reduced risk of insulation breakdown during continuous operation
System Integration
Compatible Drives
The ECM-B3M-EA1315SS1 is designed for seamless integration with Delta ASDA-B3 series servo drives. When paired with ASDA-B3 drives, the system achieves:
| Performance Metric | Value |
|---|
| Velocity Response Bandwidth | 3.1 kHz |
| Settling Time Improvement | 40% faster than previous generation |
| Encoder Support | 24-bit absolute |
| Torque Overload Capacity | 350% (3.5x) |
Recommended Drive Models
- ASD-B3-1521-L - 1.5kW Pulse Train (PT Mode)
- ASD-B3-1521-M - 1.5kW CANopen
- ASD-B3-1521-F - 1.5kW EtherCAT
- ASD-B3-1521-E - 1.5kW EtherNet/IP
Wiring & Installation Guidelines
| Item | Recommendation |
|---|
| Power Connection | Connect U, V, W terminals to drive output; ensure proper grounding |
| Encoder Connection | Use shielded twisted-pair cables; separate from power cables to prevent EMI |
| Brake Connection | Connect brake leads to designated drive terminals; brake engages when power is removed (fail-safe) |
| Cable Selection | Use waterproof connectors for IP65 protection |
| Grounding | Class-3 grounding (resistance ≤100Ω) required |
| Commissioning | Use Delta Motion Studio software for auto-tuning and parameter configuration |
System Performance Advantages
| Advantage | Description |
|---|
| Fast Settling Time | 3.1 kHz bandwidth reduces positioning settling time by 40% compared to B2 series |
| High-Speed Operation | Compatible motors support up to 6000 rpm with 3.5x torque overload |
| Vibration Suppression | Five sets of high-frequency resonance suppression filters up to 5000 Hz with auto-scanning |
| Energy Efficiency | Regenerative energy management reduces power consumption |
| Compact Design | Drive volume reduced by 20%; motor size optimized for space-constrained applications |
Applications
The ECM-B3M-EA1315SS1 is ideally suited for a wide range of industrial automation applications:
| Industry | Specific Applications |
|---|
| CNC Machinery | Milling machines, lathes, machining centers, engraving machines, flame cutters |
| Robotics | SCARA robots, delta robots, robotic arms, pick-and-place systems |
| Packaging Machinery | High-speed packaging machines, filling machines, labeling equipment, cartoning systems |
| Electronics Manufacturing | SMT machines, PCB drilling, semiconductor handling equipment |
| Material Handling | Conveyor systems, AGV, automated storage and retrieval, vertical lift modules |
| Printing Equipment | Screen printers, label printers, paper feeding systems |
| Textile Machinery | Spinning machines, winding equipment, tension control systems |
| Woodworking | CNC routers, edge banding machines, carving equipment |
Safety & Operational Guidelines
Operational Limits
| Parameter | Limit |
|---|
| Ambient Temperature | -20°C to 60°C |
| Ambient Humidity | 20% to 90% RH (non-condensing) |
| Altitude | ≤1000 m above sea level |
| Vibration | ≤2.5 G |
Safety Precautions
| Item | Requirement |
|---|
| Power Disconnection | Disconnect power before any wiring or maintenance activity |
| Brake Function | The brake is fail-safe, engaging when power is removed; verify brake operation for vertical axis applications |
| Emergency Stop | Implement external emergency stop circuits with accessible E-stop buttons |
| Overload Protection | Monitor current consumption; avoid exceeding rated torque for extended periods |
| Cooling | Ensure adequate ventilation during continuous high-load operation |
Common Fault Prevention
| Fault | Prevention |
|---|
| Overload (e.g., ALM 005) | Verify mechanical load does not exceed motor torque rating; check tuning parameters |
| Overheating | Ensure adequate ventilation; monitor operating temperature; verify load conditions |
| Encoder Errors | Use shielded cables; maintain proper grounding; inspect cable connections |
| Brake Failure | Periodically test brake function; ensure correct voltage supply to brake coil |
Model Nomenclature
| Code | Meaning |
|---|
| ECM | Delta Servo Motor |
| B3 | ASDA-B3 Series |
| M | Medium Inertia |
| E | 130 mm Frame Size |
| A | 24-bit Absolute Encoder |
| 1315 | 1.5kW Power Rating |
| S | With Oil Seal |
| S | With Brake |
| 1 | Standard shaft configuration |
Frequently Asked Questions
What is the main advantage of the 24-bit absolute encoder?
The 24-bit resolution (16,777,216 pulses/rev) provides sub-micron positioning accuracy and eliminates the need for homing after power loss. Position data is retained even when power is disconnected, reducing downtime and improving operational efficiency.
What is the IP rating of this motor?
The ECM-B3M-EA1315SS1 has an IP65 protection rating, meaning it is dust-tight and protected against low-pressure water jets from any direction when used with proper waterproof connectors and the integrated oil seal.
Does this motor include a brake?
Yes, the "SS1" suffix indicates this model includes an integrated holding brake. The brake is fail-safe, engaging when power is removed, making it essential for vertical axis applications.
What drives are compatible with this motor?
This motor is designed for Delta ASDA-B3 series servo drives, including ASD-B3-1521-L (pulse train), ASD-B3-1521-M (CANopen), ASD-B3-1521-F (EtherCAT), and ASD-B3-1521-E (EtherNet/IP).
What is the operating temperature range?
The motor operates reliably in ambient temperatures from -20°C to 60°C, suitable for a wide range of industrial environments.
What torque does this motor deliver?
Rated torque is 4.77 N*m at 2000 rpm, with peak torque of 14.32 N*m for dynamic acceleration and load handling (3x overload capacity).
Is this motor suitable for continuous high-speed operation?
With a rated speed of 2000 rpm and maximum speed of 3000 rpm, it is well-suited for many high-speed applications. Continuous operation at peak torque may require thermal management considerations.
What is the difference between the EA1315SS1 and other variants?
The "EA" prefix indicates a 24-bit absolute encoder with brake. The "RS1" variant (ECM-B3M-EA1315RS1) features a resolver encoder without brake.
Ordering Information
| Item | Details |
|---|
| Model | ECM-B3M-EA1315SS1 |
| Power | 1.5 kW (1500W) |
| Voltage | 220 VAC |
| Encoder | 24-bit Absolute Optical |
| Brake | With Holding Brake |
| Oil Seal | With Oil Seal |
| Frame Size | 130 mm |
| Protection | IP65 |
| Compatible Drives | ASDA-B3 Series (ASD-B3-1521-L/M/F/E) |
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