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Kollmorgen S70102-NAPMA
Model Code: S70102-NAPMA
Product Overview:
The S70102-NAPMA is a single-turn absolute optical encoder from Kollmorgen’s S700 product family. It delivers high-resolution absolute position feedback within one revolution, ideal for servo and motion control applications.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Type | Single-turn absolute encoder |
| Resolution | 17 bits (131,072 counts/rev) |
| Interface | BiSS-C |
| Supply Voltage | 5 VDC ± 5% |
| Output Protocol | BiSS-C (bidirectional serial) |
| Update Rate | 100 μs (10 kHz) |
| Operating Temperature | -20°C to +85°C |
| Protection Rating | IP67 |
| Shaft Type | Solid shaft, 6 mm diameter |
| Shaft Load (Radial) | 20 N |
| Shaft Load (Axial) | 10 N |
| Max Speed | 8000 RPM |
| Weight | ~95 g |
| Connector | M23 12-pin |
| Housing Material | Aluminum alloy, anodized |
Functional Features:
- BiSS-C protocol — supports daisy-chain topology and diagnostics
- Single-turn absolute — position known immediately on power-up
- High resolution at 131,072 counts per revolution
- Diagnostic data — temperature, supply voltage, error flags via BiSS-C
- Compact form factor for tight space installations
Structural Characteristics:
- Ø58 mm cylindrical housing
- Precision ball bearing shaft support
- Sealed optical code disk with LED illumination
- M23 connector with IP67 rating
Working Principle:
An LED illuminates a precision glass code disk with 17-bit binary track patterns. A photodetector array reads the pattern and converts it to a digital absolute position value. The BiSS-C protocol transmits this data bidirectionally over a single differential pair, also carrying diagnostic and configuration data.
Key Advantages:
- BiSS-C protocol enables real-time diagnostics and parameterization
- No homing required after power loss — absolute position retained
- High noise immunity via differential signaling
- Daisy-chain capable — reduces cabling in multi-axis systems
Applicable Industries:
- Servo motor feedback
- Packaging machines
- Semiconductor equipment
- Medical device actuators
- Printing presses
Installation Requirements:
- Coupling alignment tolerance ≤ 0.03 mm
- Use BiSS-C compatible drive or master controller
- Cable length up to 100 m with shielded twisted pair
Usage Precautions:
- Do not expose code disk to direct sunlight or contamination
- Verify BiSS-C termination resistor at last device in chain
- Do not exceed 8000 RPM shaft speed
