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Kollmorgen S71201-SENA-NA-0X9
Product Name: S700-Series AC Servo Motor
Model Series: S700 Series (Premium AC Servo Motor)
Product Overview:
Premium AC servo motor with integrated single-turn absolute encoder, designed for high-performance motion control requiring smooth sinusoidal commutation and high efficiency. Part of Kollmorgen’s flagship servo motor family.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | S71 (115mm Flange) |
| Flange Diameter | 115mm |
| Variant Code | 201 |
| Encoder Type | SENA (Single-turn Absolute, EnDat 2.2) |
| Encoder Resolution | 16,384 counts/rev (14-bit EnDat 2.2) |
| Shaft Type | 0X9 (Keyed shaft, DIN 6885-1) |
| Option Code | NA (Standard, no brake) |
| Continuous Torque | 2.2 Nm |
| Peak Torque | 6.6 Nm |
| Max Speed | 4,500 RPM |
| Rated Voltage | 230 VAC (or 325 VDC bus via drive) |
| Rated Current | 3.2 A RMS |
| Peak Current | 9.6 A RMS (10s) |
| Motor Weight | Approx. 2.4 kg |
| Protection Rating | IP65 (with connector) |
| Insulation Class | Class F (155°C) |
Material Composition:
- Stator: M-19 grain-oriented silicon steel, epoxy-potted
- Rotor: NdFeB permanent magnets, multiple V-shape design for low cogging
- Housing: Cast aluminum with corrosion-resistant coating
- Shaft: Hardened stainless steel (17-4PH)
- Bearings: Sealed angular contact, pre-loaded, lifetime lubricated
Structural Features:
- 115mm flange with 6× M6 mounting holes on 140mm bolt circle
- M23 connector (19-pin) for power + encoder + brake (if equipped)
- Keyed shaft with DIN 6885-1 profile
- Smooth housing with integrated cooling fins
Working Principle:
AC synchronous servo motor with sinusoidal back-EMF. EnDat 2.2 encoder provides 14-bit absolute position on every startup (no homing). Drive performs FOC with field weakening for extended speed range. Multi-pole design (8 poles) produces smooth torque with minimal cogging (< 1% of rated torque).
Key Advantages:
- EnDat 2.2 encoder — highest noise immunity and diagnostic capability
- < 1% cogging torque — ultra-smooth low-speed motion
- IP65 rating — washdown and harsh environment capable
- 2.2 Nm continuous in 115mm frame — high torque density
- S700 series — Kollmorgen’s premium performance tier
Applicable Industries:
- High-precision CNC machining
- Semiconductor wafer handling
- Print and packaging (high-speed)
- Robotics (industrial arms)
- Aerospace test equipment
Installation Requirements:
- Mount on 140mm bolt circle, torque M6 bolts to 10 Nm
- Shaft alignment: ≤ 0.04mm TIR
- Ambient: -20°C to +50°C (derate above 40°C)
- Minimum 100mm clearance for cooling fins
Usage Precautions:
- No brake installed (NA option) — do not use on vertical Z-axis without external brake
- EnDat 2.2 requires dedicated EnDat interface on drive (AKD series compatible)
- Do not exceed 4,500 RPM — balanced rotor limit
- Ensure proper grounding of encoder shield at drive end
