ELAU PacDrive SM-070/60/010/P0/45/S1/B0 Servo Motor Cutting-Edge Engineering for High-Speed Packaging and Robotics

ELAU PacDrive™ SM-070/60/010/P0/45/S1/B0 Servo Motor: Precision Powerhouse for Demanding Automation

Engineered for applications where space is constrained but performance is non-negotiable, the ELAU PacDrive™ SM-070/60/010/P0/45/S1/B0 servo motor represents the pinnacle of compact, high-dynamic motion control. As part of the acclaimed SM series from ELAU AG, this motor delivers exceptional accuracy, rapid acceleration, and robust reliability in a remarkably small 70mm flange package. Designed to meet the stringent demands of modern automation – from high-speed packaging lines to precision robotics and semiconductor handling – the SM-070/010 combines cutting-edge engineering with practical serviceability.

Core Technology & Design Philosophy

The SM-070/010 is a rotary synchronous servomotor with permanent neodymium-iron-boron (NdFeB) magnets. This advanced magnetic material provides the foundation for its high torque density and efficiency. The motor adheres to the highest standards of dynamism and accuracy, a core tenet of the SM series. Key design features include:

• Ultra-Low Rotor Inertia (0.48 kg·cm²): Enables exceptionally fast acceleration and deceleration (up to 129,175 rad/s² at peak torque), minimizing cycle times and improving responsiveness in highly dynamic applications like pick-and-place or flying shears.

• Minimized Cogging Torque: Ensures smooth rotation at low speeds, critical for precision positioning and high-quality surface finishes in applications like CNC machining or printing.

• High Power Density: Packs significant power (0.7 kW cut-off power) into its compact form factor, optimizing machine design space utilization.

• Robust Construction: Features an IP65 protection rating (achieved with the required shaft seal in IM B5/V1 mounting). The "45" in the type code signifies IP6x protection for the shaft seal area and IP5x for the casing. This robust sealing protects against dust ingress and water jets, ensuring reliable operation in harsh industrial environments like food processing or washdown areas.

• Advanced Insulation (Class F - 155°C): Provides a significant thermal safety margin, enhancing longevity and reliability even under demanding duty cycles. Temperature is monitored via a 3-code resistor in the stator coil, triggering at 130°C.

• Standardized & Serviceable Connection: Utilizes a robust terminal box connector system, combining the durability of a clamp box with the ease of serviceability of a standard plug-in system. No special tools are required for cable preparation, minimizing downtime during installation or maintenance.

Decoding the Type Key: SM-070/60/010/P0/45/S1/B0

• SM: PacDrive™ SM Servo Motor Series.

• 070: Flange size (70 mm).

• 60: Rated Speed (6000 rpm).

• 010: Standstill Torque, M₀ (1.0 Nm standard / 1.1 Nm with surface ventilation).

• P0: Shaft Version (Smooth shaft, no feather groove/keyway).

• 45: Protection Class (Shaft seal: IP64/IP65 compatible; Casing: IP65).

• S1: Encoder System (SinCos® single-turn with HIPERFACE® interface).

• B0: Holding Brake (None).

Performance Specifications

The SM-070/60/010 delivers impressive performance within its compact frame:

• Standstill Torque (M₀): 1.1 Nm (Standard), 1.1 Nm (Surface Ventilation - specific model data overrides general table)

• Peak Torque (M_SM): 4.7 Nm

• Rated Speed (n_N): 6000 rpm

• Cut-off Power (P_ECKM): 0.7 kW

• Peak Current (I_SM): 6.0 A

• Standstill Current (I_OM): 1.43 A

• Motor Moment of Inertia (J_M): 0.48 kg·cm²

• Max. Acceleration at M_SM (A_SM): 129,175 rad/s²

• Max. Mechanical Speed: 700 rad/s (~6684 rpm - safety margin above rated speed)

• Torque Constant (K_M): 0.86 Nm/A @ 20°C, 0.78 Nm/A @ 120°C

• Winding Resistance (R_W): 12.39 Ohm @ 120°C

• Winding Inductance (L_W): 21.9 mH @ 20°C

• Thermal Time Constant (t_A): 46 minutes

• Mass: 2.75 kg

• Back EMF (EMC @ 1000 rpm): 52 V

• Mechanical Robustness: Withstands shock up to 200 m/s² (all directions), radial vibration up to 200 m/s², and axial vibration up to 40 m/s².

• Balancing Class: G 2.5 (according to VDI 2060).

Feedback System: SinCos S1 with HIPERFACE®

The integrated SinCos® S1 single-turn encoder provides high-resolution position feedback essential for precise motion control. The HIPERFACE® interface is a major advantage, offering:

• Absolute Position Information: Even at power-up, eliminating the need for homing routines in many applications, saving valuable time.

• Digital Communication Channel: Allows bidirectional data exchange between the motor and drive. This enables automatic motor parameter identification, simplifies commissioning, provides access to runtime data (like temperature), and facilitates advanced diagnostics and predictive maintenance strategies.

• High Resolution: The 1 Vpp analog Sin/Cos signals deliver the fine resolution needed for smooth velocity control and precise positioning.

Electrical Connections & Integration

Connection is managed via a robust terminal box housing standardized plugs:

• X2 - Motor Power (3-Phase) & PE: Pins 1(U), 2(V), 3(W), 4(PE). Accepts cables up to 2.5 mm² cross-section. Rated for 3 AC 0-480V.

• X3 - Brake / Temperature: Pins 1 & 2 (Temp - PTC sensor), Pins 3 (Br- DC 0V) & 4 (Br+ DC 24V). Crucially, this motor has B0 (no brake), so X3 is used solely for the integrated PTC motor temperature sensor (130°C switching threshold). Accepts 1.5 mm² cables.

• X4 - Encoder (SinCos/HIPERFACE®): Provides power (Pin 1: Us DC 7-12V, Pin 2: GND) and signal lines (Pins 3: REFSIN, 4: SIN, 5: REFCOS, 6: COS, 7: RS485-, 8: RS485+). Requires fine-wire cables (max 0.25 mm²).

CAUTION: Strict attention to pin numbering is critical when wiring connectors X3 and X4 to prevent motor damage.

Physical Dimensions & Mounting

The SM-070/010 boasts a highly compact design:

• Overall Length (A): 201 mm (7.91 inches) - Without brake (B0) and without surface ventilation.

• Key Mounting Dimension (X): 152 mm (5.98 inches).

• Shaft: Smooth cylindrical shaft end according to DIN 748 (P0), diameter tolerance j6. Concentric accuracy, coaxiality, and axial run meet DIN 42955 Tolerance N (normal).

• Mounting Options: Standardized according to IEC 60034-7 (formerly DIN 42950): IM B5 (Flange mounted), IM V1 (Foot mounted, flange down), IM V3 (Foot mounted, flange up).

Ideal Application Areas

The SM-070/60/010/P0/45/S1/B0 excels in applications demanding compact size, high speed, rapid acceleration, and precise positioning:

1. High-Speed Packaging Machinery: Labelers, fillers, cappers, cartoners, wrappers requiring fast axis movements for product handling and format changes.

2. Small Robotics & Automation: Articulated arm joints, SCARA robots, delta pickers, gantry systems where low inertia and high dynamics are paramount.

3. Semiconductor & Electronics Manufacturing: Precision wafer handling, component placement, PCB assembly, wire bonding, testing equipment.

4. Medical Devices: Lab automation, diagnostic equipment, surgical robot joints requiring smooth motion and reliability.

5. Printing & Converting: Registration control, tensioning, web guiding, rotary knives on smaller presses and converters.

6. Textile Machinery: High-speed spinning, winding, precision yarn control.

7. General Automation: Conveyor indexing, small rotary tables, feeder drives, valve actuation.

Comparison within SM-070 Series & Key Advantages

Table: SM-070 Series Comparison (Key Specs @ 6000rpm, 400V)

Key Advantages Summarized:

1. Unmatched Dynamics: Lowest inertia (0.48 kg·cm²) and highest acceleration (129,175 rad/s²) in the 70mm flange size, enabling the fastest cycle times.

2. Exceptional Compactness & Lightweight: Smallest physical footprint (201mm length) and lowest mass (2.75kg) in its class, freeing up valuable machine space.

3. High Precision & Smoothness: Low cogging torque, high-quality SinCos feedback with HIPERFACE®, and robust mechanical construction ensure accurate, vibration-free motion.

4. Industrial Robustness: IP65 protection, F-class insulation, high shock/vibration resistance, and integrated temperature monitoring guarantee reliability in demanding factory environments.

5. Simplified Integration & Service: HIPERFACE® auto-identification, standardized terminal box connections, and tool-less cable prep streamline commissioning and maintenance.

6. Optimized for Light Loads: Provides the ideal torque range (1.1Nm cont. / 4.7Nm peak) for applications where minimizing inertia is more critical than maximum torque output.

Conclusion

The ELAU PacDrive™ SM-070/60/010/P0/45/S1/B0 servo motor is a technological marvel in miniature. It embodies the core strengths of the SM series – high dynamics, precision, power density, and robustness – within the smallest 70mm flange footprint. Its ultra-low inertia and resulting blistering acceleration make it the prime choice for applications where speed, responsiveness, and compactness are critical success factors. Coupled with the intelligence and ease-of-use provided by the HIPERFACE® interface and a rugged IP65 design, this motor delivers a compelling solution for engineers designing the next generation of high-performance, space-optimized automation systems across diverse industries. When peak dynamic performance in a minimal package is required, the SM-070/010 stands out as an exceptional engineered component.