Optical incremental linear encoder SiGNUM with high-precision scale RSLM made of stainless steel

Production:

Renishaw plc (Graet Britain)

Encoder SiGNUM with high-precision scale RSLM made of stainless steel

The new RSLM stainless steel line provides measurement accuracy comparable to high-precision glass scales, while providing a total error (including inclination and linearity) of less than ± 4 μm per 5 m - the best result in the industry! SiGNUM ™ RSLM encoder system , easy to install, with an optical signal filtering system, with a periodic error of ± 30 nm and a resolution of up to 5 nm, all the advantages of the encoder in 20 μm steps are preserved, inherent in systems with a significantly smaller step.

Features and benefits of the SR and Si interface reader

— Periodic error: ± 30 nm, which ensures the accuracy of operation inherent in encoders with a smaller pitch
- Ability to work at speeds up to 12.5 m/s and temperatures up to 85 ⁰ C.
- Extremely high signal stability under conditions not acceptable for most open optical encoders.
- Si - interface provides standard analog and digital output signals.
-The user-selectable automatic gain control (AGC) mode allows to maintain a constant analog signal amplitude of 1 Vpp.
- Easy setup and diagnostics of the system thanks to LED indicators on the reading head and interface.
- The flexible cable between the reading head and the UL-compliant interface is up to 10 m long.

Optional line-connected connector with protection class IP68.

Ruler RSLM in stainless steel in 20 μm steps

The RSLM ruler in stainless steel with a pitch of 20 microns is excellent for those cases when it comes to moving within a significant length while maintaining high accuracy.

This robust ruler is offered with standard lengths up to 5 m.

The total error is less than ± 4 μm at 5 m.
- Coefficient of thermal expansion: 10.8 μm/m/ ⁰ С.
- Ribbon RSLM can be folded into a ring for convenient handling and storage, while in the straightened state it behaves the same as the scale ruler.
- Fixing with a special adhesive base or mechanical clamps.
- Optical zero mark IN-TRAC with automatic synchronization provides two-way repeatability of arrival to zero point at speeds of movement up to 12.5 m/s.
- Various zero-mark positions for IN-TRAC: in the middle of the scale (RSLM), at the end of the scale (RSLE), with distance codes for indexing short displacements (RSLD) or with equal intervals for customer selection (RSLC).
- Pair limit switches installed directly on the line provide an automatic feed of the signal that initiates the stop of the moved assembly.

SiGNUM ™ Software

SiGNUM ™ package is installed on the computer and allows for comprehensive calibration, optimization and real-time diagnostics, which simplifies the installation and maintenance of the system. The Si-interface is connected to the computer via a connector with a mini-USB connector.
- Work in "real-time" mode, remote monitoring of signal level and system characteristics, including infrared signal level indicator, Lissajous figures output, feedback indicator (automatic gain control system operation) - all these tools allow optimize the operation of the entire system.

The head angular position indicator allows fine adjustment of the pitch angle of the reading head.
- Fast and easy remote calibration of zero mark signals and incremental encoder signals.
- Issue alerts that indicate that the operating conditions are below optimal (warning), or that there is a malfunction (alarms).
- The Technical Reference Guide provides context-sensitive help with a detailed description of the system functions and troubleshooting methods.
- The system configuration page displays data related to the configuration of the Si-interface, in particular, resolution, clock frequency, etc.
- The user can choose one of the following interface languages: English, German, Italian and Japanese.

Specifications