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Kollmorgen S72402-PBNANA-NA
Product Name: S700-Series AC Servo Motor (Large Frame)
Model Series: S700 Series (Premium AC Servo Motor)
Product Overview:
Large-frame premium AC servo motor from the S700 series, featuring multi-turn absolute encoder for applications requiring position retention across power cycles. Designed for high-torque, high-precision motion control.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | S72 (140mm Flange) |
| Flange Diameter | 140mm |
| Variant Code | 402 |
| Encoder Type | PBNA (Multi-turn Absolute, EnDat 2.2) |
| Encoder Resolution | 16,384 counts/rev (14-bit) + 4,096 turns multi-turn |
| Shaft Type | NA (Standard keyed shaft, DIN 6885-1) |
| Option Code | NA (No brake) |
| Continuous Torque | 4.5 Nm |
| Peak Torque | 13.5 Nm |
| Max Speed | 3,500 RPM |
| Rated Voltage | 230 VAC (or 325 VDC bus) |
| Rated Current | 6.5 A RMS |
| Peak Current | 19.5 A RMS (10s) |
| Motor Weight | Approx. 4.8 kg |
| Protection Rating | IP65 (with connector) |
| Insulation Class | Class F (155°C) |
Material Composition:
- Stator: M-19 grain-oriented silicon steel, vacuum-impregnated (VIP)
- Rotor: NdFeB, multi-V magnet design for sinusoidal back-EMF
- Housing: Cast aluminum alloy, hard anodized
- Shaft: Hardened stainless steel (17-4PH), ground and polished
- Bearings: Double-row angular contact, pre-loaded, sealed
Structural Features:
- 140mm flange with 8× M8 mounting holes on 165mm bolt circle
- M23 connector (19-pin) for power + encoder
- Keyed shaft DIN 6885-1 (18×11×50mm)
- Reinforced housing for high radial loads
Working Principle:
AC synchronous servo motor. EnDat 2.2 multi-turn absolute encoder stores position across 4,096 mechanical revolutions — position is retained even after extended power-off. FOC drive produces sinusoidal current for smooth torque. Field weakening extends speed range beyond base speed.
Key Advantages:
- Multi-turn absolute (4,096 turns) — never loses position, even after weeks of power-off
- 4.5 Nm continuous torque in 140mm frame — exceptional torque density
- EnDat 2.2 — full diagnostic data (temperature, vibration, error counters)
- VIP stator — superior thermal conductivity vs. epoxy potting
- S700 flagship — Kollmorgen’s highest performance servo motor
Applicable Industries:
- Large CNC machines (VMC, HMC)
- Heavy-duty robotics
- Wind turbine pitch control
- Steel mill equipment
- Precision gantry systems
Installation Requirements:
- Mount on 165mm bolt circle, torque M8 bolts to 18 Nm
- Shaft alignment: ≤ 0.03mm TIR
- Ambient: -20°C to +50°C
- Minimum 120mm clearance all sides
- Use flexible coupling — do not rigid-couple to high-inertia loads
Usage Precautions:
- No brake (NA option) — external brake required for vertical axes
- Multi-turn encoder battery is internal, non-replaceable — motor life = encoder life
- Do not exceed 13.5 Nm peak torque for more than 10 seconds
- EnDat 2.2 cable max length: 15m (use active extender for longer runs)
