rev. page 1 of 3 date 08/14/2007 DESCRIPTION: incremental encoder PART NUMBER: MEH20 ELECTRICAL SPECIFICATIONS output waveform output signals current consumption frequency response output phase difference Square Wave A, B, Z phase ≤50 mA 0~100 KHz A, B phase difference 90° ± 45° (T/4±T/8) Z phase T±T/2 (see output waveform) 5 V ~ 12 V dc ± 10%, 24 V dc ± 10% (open collector output only) 40, 60, 100, 200, 250, 256, 300, 360, 400, 500, 512, 600, 800, 1000, 1024, 1200, 1800, 2000, 2048, 2500, 3600 2µ or less (outout 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 19.6N (2kgf) 14.7N (1.5kgf) (600-3600 ppr) 9.8N (1kgf) 4.9N (0.5kgf) (600-3600 ppr) -3 2 x 10 NM (20 gf·cm) 6000 RPM 500 m/s2 (50G), 3 times each on XYZ 55 Hz, double amplitude 1.5mm, 2 hours each on XYZ 70g (with 1m cable) 4.2mm outside diameter, 5 core vinyl wire insulated shield cable (1m) ENVIRONMENTAL SPECIFICATIONS operating temp storage temp humidity -10° to +70° C -20° to +80° C RH 35%~90% non collecting ORDERING INSTRUCTIONS MEH20 - XXXXPXX Resolution (PPR): 40 = 40 PPR 512 = 512 PPR 60 = 60 PPR 600 = 600 PPR 100 = 100 PPR 800 = 600 PPR 200 = 200 PPR 1000 = 1000 PPR 250 = 250 PPR 1024 = 1024 PPR 256 = 256 PPR 1200 = 1200 PPR 300 = 300 PPR 1800 = 1800 PPR 360 = 360 PPR 2000 = 2000 PPR 400 = 400 PPR 2048 = 2048 PPR 500 = 500 PPR 1800 = 1800 PPR 2500 = 2500 PPR 3600 = 3600 PPR Output Circuit: " " = Voltage output C = Open collector output E = Line Driver Input Voltage: 1 = 5V dc ± 10% 2 = 12V dc ± 10% 3 = 5 ~ 12V dc ± 10% 4 = 24V dc ± 10% 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 rev. DESCRIPTION: incremental encoder PART NUMBER: MEH20 CIRCUIT CONNECTIONS Open Collector Output (C) Voltage Output +5V Red +5V Red A/B/Z White Green Yellow A/B/Z White Green Yellow 0V Black 30mA max 20mA max 0V Black CABLE SHIELD CABLE SHIELD Line Drive Output (E) +5V Red A/B/Z White Green Yellow A/B/Z 26C31 White/Black Green/Black Yellow/Black 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 08/14/2007 REV. A DESCRIPTION NEW DRAWING DATE 7/27/2007 Output Cable L=1000 0.8 0.030 5.0 0.197 30° 32.0 1.260 2.3 0.089 3-M3 depth 5 equal arrangement PCD=24 22.0 0.866 25.0 0.984 6.7 0.264 4.2 0.165 RoHS TOLERANCE: ±0.3mm UNLESS OTHERWISE SPECIFIED 5.5 0.217 20050 SW 112th Ave. Tualatin, OR 97062 Phone: 503-612-2300 800-275-4899 Fax: 503-612-2383 Website: www.cui.com 10.0 0.394 TITLE: PART NO. PC FILE NAME: MEH20 COPYRIGHT 2007 BY CUI INC. Cable Color Output Type Red White Green Yellow Power A-Phase B-Phase Z-Phase Black 0V - - - REV: Incremental Encoder MEH20 DRAWN BY: JMS A UNITS: MM [INCHES] APPROVED BY: SCALE: 1:1