maxon

DC-Tacho DCT 22 0.52 Voltmaxon sensorImportant Information• Tacho with moving coil, maxon system.• Tacho with precious metal commutation.• To establish total inertia add motor andtacho inertias.• With the output shaft turning CW as seen fromthe mounting surface, the tacho output voltagewill be positive at the + terminal.• A high impedance load is recommended attacho terminals.• The tacho current should be kept low.• The indicated resonance frequency refers to themotor-tacho rotor system.Stock programStandard programSpecial program (on request)TypeShaft diameter (mm)Article Numbers118908 118909 1189102 3 4overall lengthoverall lengthmaxon Modular System+ Motor Page + Gearhead Page Overall length [mm] / see GearheadRE 25 77/79 76.8RE 25 77/79 GP 26, 0.5 - 2.0 Nm 231 RE 25 77/79 GP 32, 0.75 - 4.5 Nm 234/235 RE 25 77/79 GP 32, 0.75 - 6.0 Nm 237 RE 25 77/79 GP 32, 1.0 - 4.5 Nm 240 RE 25 77/79 GP 32 S 255-257 RE 25 78 65.3RE 25 78 GP 26, 0.5 - 2.0 Nm 231 RE 25 78 GP 32, 0.75 - 4.5 Nm 234/235 RE 25 78 GP 32, 0.75 - 6.0 Nm 237 RE 25 78 GP 32, 1.0 - 4.5 Nm 240 RE 25 78 GP 32 S 255-257 RE 35, 90 W 81 89.1RE 35, 90 W 81 GP 32, 0.75 - 4.5 Nm 234 RE 35, 90 W 81 GP 32, 0.75 - 6.0 Nm 236/237 RE 35, 90 W 81 GP 32, 8 Nm 239 RE 35, 90 W 81 GP 42, 3.0 - 15 Nm 242 RE 35, 90 W 81 GP 32 S 255-257 Technical DataConnection exampleOutput voltage per 1000 rpm 0.52 V Max. recommended current 10 mATerminal resistance tacho 37.7 Tolerance of the output voltage ± 15 %Typical peak to peak ripple 6 % Rotor inertia (tacho only) < 3 gcm²180 Ripple frequency per turn 14 Resonance frequency with motors on p. 77 – 79 > 2 kHz T1 kLinearity between 500 and 5000 rpm unloaded ± 0.2 % with motors on p. 81 > 4.5 kHzLinearity with 10 k load resistance ± 0.7 % Temperature range -20 ... +65°CReversal error ± 0.1 %Temperature coefficient of EMF (magnet) -0.02% /°C Option: Pigtails in place of solder terminals.Temperature coefficient of coil resistance +0.4 % /°CU AC0.1 FRipple = x 100 (%)U DCResonance frequency Motor winding-Tacho winding f R 4 kHz286maxon sensorMay 2012 edition / subject to change