NC Linear Scales ST46-EZA Specifications Effective range 10 to 3000 mm Output signal Type B: 2-phase square wave signals, reference point pulse, external reset input Type C: 2-phase square wave signals, reference point pulse, 2 phase sinusoidal signal Scale reference point With scale reference point (50 mm pitch, 10 to 80 mm: Center point) Operating temperature / humidity 0 to 40°C, 20 to 80% RH (no condensation) Storage temperature / humidity -20 to 60°C, 20 to 80% RH (no condensation) Power supply voltage 5VDC ± 5% Cross section 12,5 x 12,1mm / 17,1 x 14mm / 20 x 9,33mm (depends on the type) Maximum response speed 2,6 m/s (at sine wave amplitude -3dB) Internal expansion coefficient (8±1) x 10-6°C Scale specifications Grating pitch 20 μm, Material: metal tape (Glas on request) Refer to the NC System leaflet for more details Fotoelectric metal tape linear scales • Grating pitch 20 μm • Zero reference not coded • Output signal sinusoidal 2Vpp or square wave signal(RS 422) sticky or double sided tape version • LED display function anomalie No. Detection Method ST46EZA Type B Reflective photoelectric linear encoder ST46EZA Type C Reflective photoelectric linear encoder ST46-EZA 4 3 Controller 5 1 2 1: Main scale; 2: Detector unit; 3: Output connector (included); 4: Feedback cable; 5: To be supplied by customer (feedback cable/controller) PA PB PZ PA PB PZ VOH VOL td VOH = 2.5V (min.) VOL = 0.5V (max.) td: Edge interval, resolution Z-phase pulse width 0.8±0.4mm Output Signal Type B Vpp=2v VDC=V ref. (Vcc/2 = 2.5V) Reference point mark Traveling direction of detector head Scale track Phase A Phase B Output signal pitch 20µm VDC VDC ˙ . VPP VPP Phase difference 90° (Typ) PA PB PZ PA PB PZ VOH VOL td VOH = 2.5V (min.) VOL = 0.5V (max.) td: Edge interval, resolution Z-phase pulse width 0.8±0.4mm Output Signal Type C All products to be sold to commercial customers. Product illustrations are without obligation. Product descriptions, in particular any and all technical specifications, are only binding when explicitly agreed upon. 389
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