SE40 Reading Head Fit 40m Pitch L4 Ultra-thin Stainless Steel Scale

SE40 Grating system

- SE40 series gratings are compact gratings for high dynamic and high precision systems. The application of single-field scanning and low-latency subdivision processing make them have high dynamic performance. Used in applications that are demanding on performance and cost at the same time, in pursuit of performance and product cost, an effective balance has been achieved.

- The SE40 series readhead is adapted to the L4 series ultra-thin stainless steel scale with a 40μm grating pitch. The expansion coefficient is exactly the same as that of the substrate, and its excellent corrosion resistance and scratch resistance make it suitable for harsh environments. The surface of the L4 scale is very Tough, so it doesn't need any protective coating to prevent the grid lines from being damaged. When the scale is contaminated, alcohol can be used to clean it, and non-polar organic solvents such as acetone and toluene can be used instead of alcohol, and the performance of the scale after cleaning will not be affected in any way.

Primary advantages

- Small and compact readhead (32×12×10.6mm).

- Single field scanning, low subdivision error.

- The magnetic zero point can be set arbitrarily, which is flexible and convenient.

- Ultra-light 7g readhead, ultra-flexible 3.4mm diameter cable, small inertia, does not affect system performance.

- Automatic gain control to ensure effective signal strength and long-termreliability.

- The reading head has 2 indicator lights visible in two directions, which is convenient for observing the signal status.

- Read head with optical coating, high signal-to-noise ratio.

- The surface of the scale is hard without coating and has strong scratch resistance.

- Scale with a thickness of 0.1mm has the same expansion coefficient as the substrate.

- 40μm small grid pitch, better running effect than magnetic grid, low noise and stable speed.

- Maximum speed 4.5m/s.

- 10μm/m scale absolute accuracy

Readhead specification

Scale specification

Cable parameters

Environmental parameters

Reading head installation size

Recommended thread engagement length minimum 5, tightening torque 0.25 to 0.4Nm

*All above dimensions are in millimeters

SE40 Reading head installation precautions

1. Scale placement tools must be used for scale placement, and freehand placement is prohibited.

2. Because there may be mounting stress, it takes 24 hours after the scale is mounted before the accuracy calibration can be performed, and it takes longer when the temperature is low.

3. For the long-term reliability of the application, the main body of the application (linear motor, machine) needs to be reliably grounded and shielded to prevent the reading head from being disturbed, and the power line and signal line should be kept as close as possible.Volume separation arrangement.

4. The power supply terminal of the reading head needs to meet 5V±10%, and the current is not less than 300mA.

5. Dirt on the scale may lead to increased output signal noise or position failure. Therefore, the scale must be kept clean. The scale can be cleaned with dust-free paper and ethanol or isopropanol.

6. The fixing screw of the reading head must be in accordance with the length and torque given in the installation diagram, otherwise the reading head may be damaged or poorly fixed.

Installation of grid ruler

Interface wire sequence

D-SUB 15 plug R wire sequence

D-SUB 9 plug M line sequence

D-SUB 9 plug T wire sequence

Readhead differential TLL electrical connections

Readhead indicator light

Readhead indicator lights indicate signal strength

Repair and Maintenance