FORTiS-S™ FS enclosed absolute encoder
FORTiS-S FS (Functional Safety) enclosed encoder system
Standard size
±3 µm or ±5 µm accuracy
30 g vibration resistance
Introducing FORTiS-S FS
The FORTiS-S FS encoder series is a next generation linear enclosed absolute encoder for use in harsh environments such as machine tools.
Robust, rugged, high-performance position measurement over the encoder's long life is ensured by a range of innovative design features:
Ideal for machine tool applications
Renishaw has over 40 years of experience in the machine tool industry.
Our experts have designed the FORTiS series as a next generation linear enclosed absolute encoder for use in harsh environments.
Serial interfaces
| Serial interfaces | Description | Data sheet |
| BiSS® Safety | Renishaw supports BiSS Safety (unidirectional) open protocol for absolute encoders. BiSS Safety is a high-speed serial interface, perfect for dynamic axes that require high acceleration, smooth velocity control, excellent bi-directional repeatability and rock-solid positional stability. | FORTiS-S FS BiSS Safety |
Siemens DRIVE-CLiQ® | FORTiS FS encoders with Siemens DRIVE-CLiQ serial interface allow the connection of encoders and direct measurement systems with SINUMERIK and SINAMICS drive components. |
Optional Advanced Diagnostic Tool ADTa-100
The FORTiS encoder system is compatible with the Advanced Diagnostic Tool ADTa-100 and ADT View software. They provide comprehensive real-time encoder data feedback to aid more challenging installations and diagnostics. The intuitive software interface can be used for:
- Remote calibration
- Signal optimisation over the entire axis length
- Digital readout of encoder position (relative to the scale)
- Exporting and saving data
- Setting zero
Technical specifications
Measuring standard | Stainless steel tape scale with single track absolute encoding |
Coefficient of thermal expansion at 20 °C | 10.1 ±0.2 μm/m/°C |
Thermal datum | At centre position (encoder position of 0.5 × measuring length) |
Accuracy grade at 20 °C | High: ±3 μm (only available up to 3040 mm) Standard: ±5 μm |
Scale length | 140 to 4240 mm |
Maximum speed | (See data sheet for details) Up to 4 m/s |
Serial interfaces | BiSS Safety, Siemens DRIVE-CLiQ |
Resolutions | 1 nm, 10 nm, 50 nm |
Electrical connection | Encoder: cable connector M12 custom (customer configurable exit direction) Controller: 8-way M12, 17‑way M23, 9-way D-Type, 14‑way LEMO, flying lead |
Power supply | 5 V ±10% 1.25 W maximum (250 mA @ 5 V) |
Vibration (operating) | Readhead: < 300 m/s² to IEC 60068-2-6 Housing: < 300 m/s² to IEC 60068-2-6 |
Shock (non-operating) | < 300 m/s² IEC 60068-2-27 |
Operating temperature | 0 °C to +50 °C |
Sealing | IP53 when installed correctly, IP64 with air purge |
Do you have customisation requirements?
With over 40 years experience in machine tool metrology and encoder applications, our expert team of engineers may be able to assist with your own unique requirements.