For more information, please visit the product page. rev. page 1 of 3 date 05/2009 DESCRIPTION: incremental encoder PART NUMBER: MEH12 ELECTRICAL SPECIFICATIONS output waveform output signals current consumption frequency response output phase difference Square Wave A, B, Z phase ≤40 mA 0~100 KHz A, B phase difference 90° ± 45° (T/4±T/8) Z phase T±T/2 (see output waveform) 5 V dc ± 10% 60, 100, 125, 200, 256, 300, 360, 500, 600, 900, 1000, 1500, 1800, 2000, 2048 2μ or less (output cable 1m or less) supply voltage output resolution (ppr) waveform rise/fall time MECHANICAL SPECIFICATIONS max shaft load, radial: axial: starting torque max rotational speed shock resistance vibration proof weight cable 1.9N (200gf) 0.98N (100gf) (1500-2048 ppr) 1.9N (200gf) 0.98N (100gf) (1500-2048 ppr) 1 x 10-3 N·m (10 gf·cm max.) 6000 RPM 500 m/s2 (50G), 3 times each on XYZ 55 Hz, double amplitude 1.5mm, 2 hours each on XYZ 40 g (with 1m cable) 3mm outside diameter 5-core vinyl wire, insulated shield cable (length 1m) ENVIRONMENTAL SPECIFICATIONS operating temp storage temp humidity -10° to +70° C -20° to +80° C RH 35%~90% non collecting ORDERING INSTRUCTIONS MEH12 - (X)XXXXPX Bore options: 1.5 = 1.5mm 2 = 2mm 3 = 3mm Resolution (PPR): 60 = 60 PPR 600 = 600 PPR 100 = 100 PPR 900 = 900 PPR 125 = 125 PPR 1000 = 1000 PPR 200 = 200 PPR 1500 = 1500 PPR 256 = 256 PPR 1800 = 1800 PPR 300 = 300 PPR 2000 = 2000 PPR 360 = 360 PPR 2048 = 2048 PPR 500 = 500 PPR Output Circuit: "no entry" = TTL voltage output C = Open collector output E = Line driver output 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 For more information, please visit the product page. rev. DESCRIPTION: incremental encoder PART NUMBER: MEH12 CIRCUIT CONNECTIONS Open Collector Output (C) Voltage Output Vcc Red Vcc Red A/B/Z White Green Yellow A/B/Z White Green Yellow 0V Black 2.2 kΩ 30mA max max 0V Black CABLE SHIELD CABLE SHIELD Line Drive Output (E) +5V Red A/B/Z White Green Yellow White/Black Green/Black Yellow/Black A/B/Z 26C31 0V Black CABLE SHIELD OUTPUT WAVEFORM Clockwise rotation viewed from front Counter Clockwise rot ation viewed from front T T Phase A H L Phase A H L Phase B H L Phase B H L Phase Z H L Phase Z H L T ± T (90˚± 45˚) 8 8 T±T/2 T ± T (90˚± 45˚) 8 8 T±T/2 The position of Z phase against A, B phase is not specified 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 page 2 of 3 date 05/2009 PC FILE NAME: MEH12 2.5 0.098 7.0 0.276 2.0 0.079 8.0 0.315 COPYRIGHT 2007 BY CUI INC. Cable Color Output Type 10.0 0.394 35° Red White Green Yellow Power A-Phase B-Phase Z-Phase 2-M2 depth 3 5.5 0.217 2-M2 90 arrangement 20.0 0.787 3.0 0.118 Output cable 1 meter Black 0V - 1.5 - 2.0 Hole A - 3.0 25.0 0.984 A 19.0 0.748 4.0 0.157 REV. A JMS DRAWN BY: MEH12 APPROVED BY: Incremental Encoder PART NO. TITLE: UNITS: 20050 SW 112th Ave. Tualatin, OR 97062 Phone: 503-612-2300 800-275-4899 Fax: 503-612-2383 Website: www.cui.com TOLERANCE: ±0.3mm UNLESS OTHERWISE SPECIFIED DESCRIPTION NEW DRAWING A 2:1 SCALE: MM [INCHES] REV: RoHS DATE 7/27/2007 For more information, please visit the product page.