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Kollmorgen S71202-PBNANA
Product Overview:
The S71202-PBNANA is a servo motor from Kollmorgen’s S-Series, designed for seamless integration with AKD servo drives. The “712” indicates the frame size (approximately 70 mm flange), “02” denotes the stack length variant, “P” indicates the winding type (high-speed variant), “B” denotes the encoder (BiSS-C), “N” indicates the shaft (with keyway), “A” indicates the connector (M23), “N” indicates cooling (natural convection), “A” indicates the standard housing.
Detailed content
Key Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | 70 mm flange (S71 series) |
| Motor Type | Brushless AC Servo (Permanent Magnet Synchronous) |
| Continuous Torque | 2.0 Nm |
| Peak Torque | 6.0 Nm (3× continuous, 10 s) |
| Rated Speed | 3,000 RPM (continuous), 5,000 RPM (peak) |
| Rated Voltage | 48 VDC bus (via AKD drive) |
| Phase Resistance | 1.8 Ω (phase-phase) |
| Phase Inductance | 3.2 mH (phase-phase) |
| Torque Constant (Kt) | 0.64 Nm/A |
| Back-EMF Constant (Ke) | 61 V/krpm |
| Rotor Inertia | 12 g·cm² |
| Encoder Type | BiSS-C, Absolute, Multi-turn, 2048 lines |
| Encoder Resolution | 2048 increments/rev (11-bit) |
| Shaft Type | Round shaft with keyway, 14 mm diameter |
| Connector | M23, 12-pin (straight) |
| Cooling | Natural convection (no fan) |
| Housing Material | Aluminum alloy (anodized) |
| Weight | ~1.2 kg |
| Operating Temperature | 0°C to +40°C (continuous), -20°C to +80°C (intermittent) |
| Insulation Class | Class F (155°C) |
| Certifications | CE, UL, cUL, RoHS, REACH |
Functional Features:
- BiSS-C absolute encoder — multi-turn position without homing
- High torque density — optimized magnetic circuit design
- Low cogging torque — <2% of rated torque
- IP65-rated housing (with optional sealing kit)
- Kollmorgen AKD auto-tuning for optimal performance
- Regenerative braking support via AKD drive
Applicable Industries:
Machine tools, packaging lines, robotics (SCARA, 6-axis), semiconductor equipment, printing, food & beverage, pharmaceutical automation
Installation Requirements:
- Mount using 4× M5 mounting holes; torque to 2.5 Nm
- Coupling: flexible bellows or jaw type; max misalignment ≤0.05 mm
- Ground motor housing to system earth
- Encoder cable: max 15 m shielded twisted pair
Usage Notes:
- Do not apply axial loads exceeding 50 N on shaft
- Derate torque by 10% per 10°C above +40°C ambient
- Verify encoder signal integrity before commissioning












