Series LR Linear Encoder Read Heads
|
|
The LR Read Head, when combined with a Series LS Scale, creates a rugged linear measurement system proving excellent speed, and resolution characteristics.
Its precision and speed make it ideal for use in motion feedback, electronics assembly and circuit board fabrication applications. Able to withstand the punishment of dirty and high shock / vibration environments, LR / LS systems can deliver high accuracy position control for machinery used in the metalworking, woodworking and material handling industries.
More cost effective than glass scales and optical reflective tapes, models include the choice of quadrature or sine/cosine outputs, and standard Reference (index) output.
|
Mechanical and Environmental Features
• NEMA 4/IP66 System Integrity Electrical Features
• Incremental quadrature outputs provide 5 micron (0.0002 inch) measuring
steps |
Large, noncritical gap requirements provide greater system reliability than enclosed glass scales or magnetic tape systems. A simple installation and startup procedure further reduces total costs over competitive devices.
Electrical
| Resolution: | Sine/Cosine:
up to 0.25 micron (0.00001") dependent upon customer supplied
interpolation; Quadrature: up to 5 micron (0.0002") dependent on model |
| Readhead Accuracy: | 10 micron (0.0004") |
| Input Voltage: | 5 ± 5% VDC |
| Input Current: | Sine/Cosine:
80 mA max.; Quadrature: 100 mA max. |
| Output Voltage: | Sine/Cosine
incremental: 1 Vpp into 120 ohm load; Reference: 0.4 V peak into 120 ohm load; Quadrature: RS422A compatible TTL differential line driver |
| Speed: | 20 m.sec (65.6 ft/sec) max. |
| Frequency Response: | 1 MHz max. |
| Cable: | High flexture, rated for 1 million cycles min.; 1 pair 0.14mm2 (28 AWG), plus 3 pair 0.05mm2 (33 AWG) conductors plus shield |
| Termination: | 9 pin subminiature D style plug, male |
Mechanical
| Compatable Scales: | Series LS Scales, available in various lengths and mounting styles |
| Gaps to scale: | Sine/Cosine
Output Models: 0.15 ± 0.1mm (0.006 ± 0.004") TTL Output Models: 0.2 ± 0.15mm (0.008 ± 0.006") |
Environmental
| Operating Temperature: | 0° to +50°C (32 to 122°F) |
| Shock, 11 msec duration: | 2000m/sec/sec (200 G's) |
| Vibration, 55 to 2000 Hz: | 200m/sec/sec (20 G's) |
| Enclosure Rating: | IP66 (NEMA Type 4) |
| Noise Immunity: | Tested to EN50082-2 Heavy Industrial for Electrostatic Discharge, Radio Frequency, Fast Transient, Conducted and Magnetic Interference |
Electrical Connections
| Wire Color | DP9 Pin | LR001 Signal | LR005 to LR050 |
| YEL | 1 | SIN | A |
| BLU | 2 | COM | COM |
| WHT | 3 | COS | B |
| - | 4 | N/C | N/C |
| GRY | 5 | REF | Z |
| GRN | 6 | SIN | A |
| RED | 7 | +5 Vdc | +5 Vdc |
| BRN | 8 | COS | B |
| PNK | 9 | REF | Z |
Click Here For Complete Technical Information (160kb .pdf file)
TTL
quadrature output resolution to 5 microns