Technical Specifications:

• Series: S7200
• Frame Size: 40 (motor stack diameter ~40mm flange)
• Stack Length Code: 2 = Medium-long stack (higher torque than code 0 or 1)
• Winding Code: NANANA
  • N = Standard winding (balanced torque/speed)
  • A = Winding variant A (specific voltage/turn count)
  • N = No special winding modification
  • A = Variant A
  • N = Standard
  • A = Variant A
• Feedback Code: NA = No feedback installed / Resolver only (basic version — encoder sold separately)
• Shaft Code: NA = Standard shaft with keyway (no clamping hub, no special shaft)
• Option Code: 225 = Specific flange/mounting variant (typically 225 = square flange with specific bolt pattern and shaft length)
• Rated Torque (Continuous): Approximately 4.5 Nm (for stack length 2, frame 40)
• Peak Torque: Approximately 13.5 Nm (3× continuous)
• Rated Speed: Up to 4000 RPM
• Voltage Rating: 200–480 VAC
• Insulation Class: Class H (180°C)
• Protection Rating: IP65 (with sealed cable gland)
• Weight: Approximately 2.8 kg
• Moment of Inertia (Rotor): Approximately 0.8 × 10⁻⁴ kg·m² (typical for frame 40, stack 2)

Material Composition:

• Stator Lamination: M19-29G or equivalent silicon steel (0.29mm thickness)
• Rotor Lamination: 35JN210 or equivalent (high-speed grade)
• Magnets: N42SH NdFeB (neodymium-iron-boron) — high-energy product
• Windings: Class H (180°C) copper, vacuum pressure impregnated (VPI)
• Housing: 6061-T6 aluminum alloy, hard anodized (Type III, 50 μm)
• Shaft: 42CrMo4 alloy steel, hardened to 58–62 HRC, ground to h6 tolerance
• Bearings: 6900-series angular contact ball bearings (C3 clearance for high temp), sealed with ZZ shields
• Cable Gland: Nickel-plated brass, IP68 rated

Structural Features:

• Square flange mounting (NEMA 11 equivalent or IEC 80mm)
• 4× M5 mounting holes on flange (or M6 depending on 225 variant)
• Shaft: Ø12 mm with keyway (3 × 3 mm, per DIN 6885)
• Shaft length: Approximately 30 mm (standard for NA)
• 1× M20 cable gland (radial exit, rear of motor)
• 1× temperature sensor (PTC thermistor, 1 kΩ at 25°C)
• Balancing: G2.5 (2.5 mm/s) per ISO 1940-1

Working Principle:
Permanent magnet synchronous motor (PMSM). The NdFeB magnets on the rotor create a fixed magnetic field. The stator windings (NANANA configuration) are energized by the servo drive with sinusoidal currents synchronized to rotor position (from resolver or encoder). FOC algorithm in the drive controls the d-axis and q-axis current components independently: d-axis current controls flux, q-axis current controls torque. This achieves maximum torque per ampere (MTPA) across the speed range.

Key Advantages:

• Stack length 2 — 40–50% more torque than stack length 0 or 1 in same frame
• IP65 rated — suitable for washdown and dusty environments
• High-energy magnets (N42SH) — maximum torque density
• Resolver feedback (NA) — robust in high-vibration, high-temperature environments (resolver has no electronics to fail)
• VPI windings — superior thermal conductivity and moisture resistance

Applicable Industries:

• Heavy-duty CNC machines
• Metal forming equipment
• Press machines
• Conveyor systems (high torque)
• Mining equipment
• Marine applications (with IP65)

Installation Requirements:

• Mount on rigid base — flange bolts torqued to 8 Nm (M5) or 15 Nm (M6)
• Coupling: Use flexible jaw coupling (max 0.1 mm misalignment)
• Resolver cable: 6-wire shielded cable, max 10 m (use resolver-to-digital converter if longer)
• Ground motor housing to < 0.1 Ω

Usage Notes:

• NA (no encoder) version requires external resolver-to-digital converter (e.g., Kollmorgen AKD with resolver input)
• Do not operate without resolver connected — drive will fault
• Resolver alignment: electrical zero must be set during commissioning (use auto-tune)
• Operating temperature: -10°C to +60°C (with Class H insulation, derate above 40°C)