8MSA3M.R0-42 Detailed Product Description

1. Product Overview

2. Basic Information

• Model: 8MSA3M.R0-42

• Series: 8MSA (ACOPOS servo motor series)

• Type: Three-phase synchronous servo motor, self-cooling (IC4A0A0)

• Size: 3M (60 mm flange)

• Encoder/Feedback: Resolver (R0), 2-pole, analog

• Shaft End: Smooth shaft (no keyway)

• Connection: Angled swivel circular connector

• Cooling: Self-cooling (free convection, no external fan)

• Mounting: Flange-mounted (60 mm square flange)

• Certifications: CE, UKCA, cULus, EAC, KC

• Insulation Class: F (155°C maximum winding temperature)

• Protection Class: IP64 (flange/shaft); IP20 (connector end)

3. Electrical Specifications

3.1 Performance Parameters

• Nominal Speed (nₙ): 3000 rpm

• Maximum Speed (nₘₐₓ): 6000 rpm

• Number of Pole Pairs: 4

• Nominal Torque (Mₙ): 1.9 Nm

• Stall Torque (M₀): 2.1 Nm

• Maximum Torque (Mₘₐₓ): 7.6 Nm

• Nominal Power (Pₙ): 400 W

• Nominal Current (Iₙ): 1.2 A (rms)

• Stall Current (I₀): 1.4 A (rms)

• Maximum Current (Iₘₐₓ): 5.8 A (rms)

• Torque Constant (Kₜ): 1.58 Nm/A

• Voltage Constant (Kₑ): 75 V/krpm

• Phase Resistance (R): 2.1 Ω (per phase)

• Phase Inductance (L): 2.6 mH (per phase)

• Thermal Time Constant (tₜₕₑᵣₘ): 16 min

3.2 Feedback System

• Type: 2-pole resolver (brushless, contactless, analog)

• Resolution: 12-bit equivalent (4096 counts/rev)

• Communication: Analog sine/cosine signals

• Supply Voltage: 7 VAC ±10%, 10 kHz excitation

• Interface: Compatibility with B&R ACOPOS/ACOPOSmulti drives

• Features: High noise immunity, robust for harsh environments, cost-effective

3.3 Holding Brake (Not Fitted)

• Brake Type: Spring-applied, electrically released (optional)

• Voltage: 24 VDC ±10%

• Power Consumption: 5 W

• Holding Torque: 1.8 Nm

• Note: This model (R0-42) has no holding brake

4. Mechanical Specifications

• Flange Size: 60 mm × 60 mm (square flange, centering diameter 60 mm j6)

• Shaft Diameter: 14 mm (smooth shaft, no keyway)

• Shaft Length: 30 mm

• Dimensions (W × H × L): 60 mm × 60 mm × 110 mm

• Weight: Approx. 1.8 kg

• Moment of Inertia (J): 0.48 kg·cm²

• Bearing Type: Precision ball bearings (standard load rating)

• Shaft Runout: ≤0.02 mm

• Vibration Grade: A (≤1.12 mm/s rms)

• Noise Level: ≤60 dB(A) at 3000 rpm

• Oil Seal: Optional DIN 3760 Form A (for shaft protection)

5. Environmental Conditions

5.1 Temperature

• Operating: 0–40°C (rated); up to 55°C (with 15% torque derating)

• Storage: −25–55°C

• Transport: −25–70°C

5.2 Humidity

• Operating: 5%–85% RH (non-condensing)

• Storage: 5%–95% RH (non-condensing)

5.3 Mounting & Altitude

• Orientation: Any (horizontal/vertical; no derating)

• Rated Altitude: 0–1000 m

• Max Altitude: 4000 m (with 10% torque derating above 1000 m)

6. Interface & Connection

• Motor Connector: HTEC circular connector (size 1), angled/swivel type

• Cable Compatibility: B&R hybrid power/feedback cables (e.g., 8CC003.12-1)

• Wire Gauge: 0.75–1.5 mm² (power); 0.25–0.5 mm² (feedback)

• Cable Length: Max 50 m (without signal amplification)

• Connector Hood: Optional IP65 protection for connector end

7. Thermal Protection

• Method: Winding temperature sensor (PTC 100 Ω) + drive-based monitoring

• Threshold: 110°C (drive limits torque); 155°C (hardware shutdown)

• Cooling Requirement: Natural convection (no external fan needed; ensure adequate airflow around the motor)

8. Key Features

• Compact & Lightweight: 60 mm flange, 1.8 kg weight for easy integration

• Cost-Effective Feedback: Resolver (R0) for reliable performance in standard applications

• High Dynamic Performance: 6000 rpm max speed, 7.6 Nm peak torque for fast acceleration

• Robust Construction: IP64 protection, brushless design for long service life

• Smooth Shaft: Standard smooth shaft for flexible coupling integration

• Swivel Connector: Angled connector reduces cable stress and simplifies routing

• High Efficiency: IE3 classification, low energy consumption

• Easy Maintenance: Brushless design with minimal upkeep

9. Accessories

9.1 Mandatory

• Power/Feedback Cable: 8CC003.12-1 (standard length)

• Mounting Bolts: M4 × 10 mm (4 pcs)

9.2 Optional

• Holding Brake Kit: 8MSA3M.B000-42 (retrofit)

• Keyed Shaft Kit: 8MSA3M.K000-42 (retrofit)

• Oil Seal: DIN 3760 Form A (for shaft protection)

• Connector Hood: IP65 protection for connector end

• Gearbox: B&R 8G series planetary gearboxes (ratio 3:1 to 50:1)

10. Typical Applications

• General automation machinery

• Automated assembly lines

• Packaging machinery (small filling, sealing)

• Textile machinery (small spinning, weaving)

• Robotics (small SCARA, delta robots)

• Material handling (small conveyors, pick-and-place)

• Printing machinery (small digital, flexographic)

• Laboratory automation equipment