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Product Introduction:
The S724F-NANANA is a flange-mounted AC servo motor from the S700 product family, optimized for high dynamic response in motion control applications. The “NANANA” configuration code denotes: No brake, No holding brake, No special winding, No special connector, No special shaft, No special feedback — a standard baseline configuration.
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size / Flange | 115 mm (4.53 in) — S72 designation |
| Motor Length Code | 4 (medium length stack) |
| Shaft Type | F = Keyed shaft with keyway |
| Continuous Torque | 4.0 Nm (35.4 lb-in) |
| Peak Torque | 12.0 Nm (106.2 lb-in) |
| Max Speed (Continuous) | 3,000 RPM |
| Peak Speed | 5,000 RPM |
| Rated Power (Continuous) | 1.26 kW (1.69 HP) |
| Peak Power | 3.77 kW (5.06 HP) |
| Voltage Rating | 200–480 VAC (3-Phase) |
| Encoder | Single-turn optical encoder — 2,500 lines (10,000 counts/rev) |
| Holding Brake | None (N = No brake) |
| IP Rating | IP65 (standard) |
| Insulation Class | Class F (155°C) |
| Weight | Approx. 4.8 kg (10.6 lbs) |
| Ambient Temperature Range | 0°C to +40°C (derate above 40°C) |
Structural Features:
- Aluminum alloy housing — Lightweight, high thermal conductivity.
- Keyed shaft with DIN 6885 keyway — Standard mechanical coupling interface.
- Integral optical encoder — Glass scale, 2,500 lines, TTL/HTL output.
- Sealed ball bearings — Pre-lubricated, lifetime-rated for L10 at rated speed.
- 4-pole design — High torque-to-inertia ratio.
Working Principle:
The servo drive supplies three-phase sinusoidal (or trapezoidal) current to the stator windings. The permanent magnet rotor follows the stator field. The optical encoder provides incremental position feedback for velocity and position closed-loop control.
Key Advantages:
- High dynamic bandwidth — Up to 1.5 kHz servo bandwidth.
- Compact 115 mm flange — Fits standard NEMA 42 mounting pattern.
- Keyed shaft — Simple mechanical integration with couplings and pulleys.
- Cost-effective baseline configuration — Ideal for OEMs requiring standard specs.
Applicable Industries:
Packaging machinery, Printing presses, Conveyor systems, Textile machinery, Material handling, General automation.
Installation Requirements:
- Mount using 4× M6 bolts on 115 mm bolt circle (100 mm bolt circle for some variants — verify nameplate).
- Shaft coupling must accommodate 6 mm keyway, 28 mm shaft diameter.
- Ensure encoder cable bend radius ≥ 50 mm at connector exit.
- Ground the motor housing to chassis ground with ≤ 0.1 Ω resistance.
Usage Precautions:
- Do not apply axial loads exceeding 50 N on the shaft — bearings are not rated for high thrust.
- Do not operate without encoder connected — drive will fault on position loop open.
- Maximum ambient temperature 40°C; derate torque by 1.5% per °C above 40°C.
- No brake installed — system must use dynamic braking or external brake for vertical-axis hold.
