HEIDENHAIN LC 493M Linear Encoder
Catalog photo shows the LC 483 with mounting spar. It is not a photo of the LC 493M; check your unit's ID tag.
The HEIDENHAIN LC 493M (also written LC493M) is a linear encoder. If yours is giving trouble, Automation and Metrology can evaluate it before you commit to a replacement. We work on older encoders, including units that may no longer be available new.
we specialize in machine down linear encoder repair or replacement
How it works: Send us your scale for a free evaluation. We will give you a repair quote quickly, before work starts.
Turnaround: Rush repairs typically take 1-2 days; standard repairs typically take 1-2 weeks. We will confirm the timing for your unit with the quote. If repair is not practical, we can help identify a suitable current HEIDENHAIN replacement.
Catalog specifications
From the HEIDENHAIN Linear Encoders for Numerically Controlled Machine Tools catalog, July 2010. Printed in the 2010 catalog on the same page as the LC 483 and LC 493F. This page lists the LC 493M column only. Values are catalog values for this model; confirm your unit's configuration from its ID tag.
| Absolute position values | Mitsubishi high speed serial interface, Mit 02-4 or Mitsu 01 |
|---|---|
| Resolution | 0.01 µm (accuracy ±3 µm); 0.05 µm (accuracy ±5 µm) |
| Incremental signals | None (–) |
| Cable length (HEIDENHAIN cable) | Up to 20 m |
| Measuring lengths (mm) | 70, 120, 170, 220, 270, 320, 370, 420, 470, 520, 570, 620, 670, 720, 770, 820, 870, 920, 1020, 1140, 1240 (mounting spar or clamping elements optional); 1340, 1440, 1540, 1640, 1740, 1840, 2040 (mounting spar or clamping elements necessary) |
| Expansion coefficient | 8 x 10-6 K-1 (mounting type without spar); 9 x 10-6 K-1 with mounting spar |
| Required moving force | Up to 5 N |
| Vibration 55 to 2000 Hz | Without mounting spar up to 100 m/s²; with mounting spar and cable outlet right/left up to 200 m/s² / 100 m/s² (IEC 60 068-2-6) |
| Weight | Encoder 0.2 kg + 0.5 kg/m measuring length; mounting spar 0.9 kg/m |
| Measuring standard | DIADUR glass scale with absolute track and incremental track |
| Accuracy grade | ±3 µm; ±5 µm |
| Power supply (without load) | 3.6 to 5.25 V / less than 300 mA |
| Electrical connection | Separate adapter cable (1 m/3 m/6 m/9 m) connectable to mounting block |
| Traversing speed | Up to 180 m/min |
| Acceleration | Up to 100 m/s² in measuring direction |
| Shock (11 ms) | Up to 300 m/s² (IEC 60 068-2-27) |
| Operating temperature | 0 °C to 50 °C |
| Protection (IEC 60 529) | IP 53 when mounted according to the mounting instructions; IP 64 if compressed air is connected via DA 300 |
| Grating period | 20 µm |
Documents
- HEIDENHAIN spec sheet, LC 483 / LC 493F / LC 493M (PDF)
- HEIDENHAIN linear encoders catalog, 2010 (PDF)
Please send the full model and ID number from the unit's label, plus its measuring length and connector details, so we can check the right configuration. Do not assume a similar model is a drop-in replacement.
Request a Quote Or call 1-888-354-2525.