Linear Scales
Linear Scales ST46-EZA SERIES 579 — Compact Type
• Includes an automatic adjusting function for the signal (EZA function) at the push of a button. • Detector head mounting and signal adjustment possible without oscilloscope or PC. • A setup indicator for checking signal strength is included. • When connected with a PC it is possible to check signal strength and set parameter (Optional application program required). • I/F circuit integrated in connector shell reduces volume to compared to conventional interface. • The thickness of the detector head is only 7.5 mm. The metal tape scale type has a mounting surface area of 12.5 by 9.325 mm, allowing use in applications where a space-saving design is important. • Glass and metal tape versions are available.
Glass Scale Type
Metal Tape Scale Type •Double-end mounting design
•Double-sided tape mounting design
H
SPECIFICATIONS
ST46-EZA
Model
Optical
Detection method
Scale type
Glass
Metal tape
Main scale grating pitch
20 µm
Type B: 2-phase square-wave signals (RS-422A compatible), reference point pulse, external reset input. Type C: 2-phase square-wave signals (RS-422A compatible), reference point pulse, 2-phase sinusoidal signals.
Output signal
Effective range
10 to 3000 mm
Effective range 10 to 300 mm: ±1 µm Effective range 350 to 500 mm: ±2 µm Effective range 600 to 1000 mm: ±3 µm Effective range 1100 to 3000 mm: ±3 µm/m
Effective range 10 to 1000 mm: ±5 µm *1 Effective range 1100 to 3000 mm: ±5 µm/m *1
Accuracy (20º C)
Maximum response speed
2.6 m/s (at the point where the sinusoidal signal amplitude has decreased by 3 dB)
Scale reference point Power supply voltage
10 to 80 mm: 1 center point; 100 to 300 mm: 50 mm pitch
5 VDC ± 5%
Operating temperature (humidity) range Storage temperature (humidity) range
0 to 40º C (RH 20 to 80%, non-condensing)
–20 to 60º C (RH 20 to 80%, non-condensing)
Head cable length 1 m (high-flex connecting cable) *1 The above accuracy applies to individual scales. For double-end mounting designs, perform point-to-point correction after ensuring the metal tape is tensioned correctly.
Refer to the NC Linear Scale Systems Brochure ( E13005 ) for more details.
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