Linear Scales ST422 Series 579-Compact Type

Series 579
Features
  • The maximum response speed is 5000mm/s. (When resolution is 1μm and the minimum edge interval is 125ns)
  • Ultra-compact detector control unit allows use in applications where space-saving design is important.
  • The maximum effective measurement length of 3000mm enables use on large machines.
  • Simultaneous output of 2-phase square wave signals (maximum resolution: 0.2μm) and 2-phase sinusoidal wave signals (main signal: 40μm) is available.
  • LED display function for indicating signal errors.
  • Equipped with scale reference point output.

*1: Effective range/ Accuracy
300mm or less/ ±1μm
500mm or less/ ±2μm
1000mm or less/ ±3µm
3000mm or less/ ±3μm/m

Specifications
ModelST422
Detection methodReflective photoelectlic linear encoder
Output signal2-phase sinusoidal signals, 2-phase square wave signals
Main scale grating pitch40µm
Signal output pitch40µm
Effective range10 to 3000mm
Accuracy (20°C)*1±1µm, ±2µm, ±3µm(/m)
Resolution0.2µm/ 0.5µm/ 1µm/ 5µm (Selectable with internal switch)
Scale reference pointCenter point (10 to 75mm)/ 50mm pitch (100mm or more)
Maximum response speed5000mm/s (varies depending on the setting)
Minimum edge-to-edge interval125ns/ 250ns/ 500ns/ 1µs (selectable with internal switch)
Operating temperature/ humidity range0 to 40°C, RH 20 to 80% (no condensation)
Storage temperature/ humidity range–20 to 60°C, RH 20 to 80% (no condensation)
Head cable length1m
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