Optical incremental linear encoder RGH40
- Production:
- Renishaw plc (Graet Britain)
- Encoder RGH40
When working with the open, non-contact reading head of the RGH40 encoder a RGS40-G glass ruler with a step of 40 μm by Renishaw is used, with a resolution of up to 50 nm!
Features and benefits of the RGH40 reading head
A compact and robust reading head with an integrated interpolator provides digital and analog output signals that meet the industry standard.
- High speed and reliability of work with zero friction and no mechanical wear.
- Scale with a step of 40 microns allows you to work with wide tolerances when installing the reading head.
- Simple installation and setup procedure due to the presence of a special built-in LED indicator.
The patented optical signal filtering system guarantees high signal stability under conditions that do not allow the use of most open optical encoders.
- The zero mark ensures the repeatability of the initial position, and the limit switches - the automatic signal giving the initiating stop of the moved node.
The RGH40 system allows reading from the RGS40-G glass ruler in 40 μm steps, as well as with the standard 40 μm glass ruler in the industry.
Glass ruler RGS40-G with a step of 40 microns
Reading from the glass ruler RGS40-G in 40 μm increments is done with the RGH40 head. The RGS40-G is ideal for situations where it is necessary to move the ruler separately from the substrate. Temperature compensation for the parameters of the RGS40-G is performed by the host controller using temperature sensors.
-We offer rulers with lengths from 120 mm to 1 m.
- Coefficient of thermal expansion ≈ 8.5 μm/m/° C.
- Accuracy <± 5 μm/m.
- Easily installed directly on the substrate, using the base bracket and mechanical clamps or self-adhesive base.
Specifications
| Built-in LED head position indicator |
Yes |
| Measuring range, m: | — optical scale RGS40–G — up to 1 |
| Length, m: | — optical scale RGS40–G — from 0,13 to 1,01 |
| Resolution of the digital output signal RS422, nm: | 50, 100, 200, 400, 1000, 2000, 5000, 10 000 |
| Resolution of the analog output signal: | — 1 Vpp |
| Step of the scale, mkm: | — optical scale RGS40–G — 40 |
| Max speed, m/s: | — for digital output signal — up to 10 — for analog output signal — up to 6 |
| Clearance between reading head and optical scale, mm: |
0,8 ± 0,15 |
| System accuracy at 20 ° C, μm/m: | — optical scale RGS40–G — from ± 0,7 to ± 4,2 (depends on the length of the scale) |
| Scale option: | — optical scale RGS40–G — with base bracket and mechanical clamps or with self-adhesive base |
| Coefficient of thermal expansion, μm/m/°С: | — optical scale RGS40–G — ≈ 8,5, ends of the scale are fastened by clamps |
| Supply voltage, V: | 5 ± 5 % |
| Current consumption (without load), mA: | — 120 (in typical conditions) — 175 (for versions RGH40N, W, Y, H) |
| Material: | — optical scale RGS40–G — glass ruler with chrome strokes |
| Cable: | — flexible, 12-core with double shielding, outer diameter 4.7 mm, bending life more than 20 x 10 6 cycles with a bend radius of 50 mm |
| Length of the cable, m: | 0.5, 1, 1.5, 3, 5 (connector type D (15-pin), round connector (12-pin), in-line connector (16-pin) or free terminal (without connector)) |
| Dimensions of the reading head RGH40 (height × length × width), mm: | 17,0 × 44,0 × 27,0 |
| Mass of the reading head, g: | 50 |
| Mass of the cable, g/m: | 38 |
| Reference mark (zero): | Magnetic actuator (one-way repeatability up to 1 resolution unit) |
| Limit switches: | – optical scale RGS40–G – paired |
| Temperature, °С: | — process — from 0 to + 55 — storage — from – 20 to + 70 |
| Degree of protection: | IP50 |
| Humidity (without compensation), %: |
— process — 80 — storage — 95 |
| Process acceleration, m/s 2: | 500 |
| Impact (in non-operating state, 6 ms, half-sinusoidal impulse), m/s 2: |
1000 |
| Vibration (in operation mode, at, at 55-2000 Hz), m/s 2: | 100 |
See also:
- Optical incremental linear encoder RGH34
- Optical incremental linear encoder RGH41
Series of optical incremental linear sensors RG4
Downloads:
Description and technical specifications
- Non-contact position encoders guide (EN) (pdf, 10`420 Кб)
