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Koyo encoders. TRD-MX Series.

φ25 Incremental Type

Ultraminiature design with outside diameter of φ25 mm/ depth of 29 mm/ shaft diameter of φ4 mm Small diameter lineup with resolutions up to 1,024 P/R. Line driver output is available.
  • Pulse number: 100, 200, 360, 500, 512, 600, 1,000, 1,024P/R
  • Supply voltage: 5 to 24 V DC
  • Maximum allowable number of revolutions: 6,000 rpm
  • Output signal format: 2-phase output + Origin
  • Output form: NPN open collector / line driver
  • IP50 (Dustproof type)

Model Number List

Type Appearance Model Number Supply Voltage Output Output Form Pulse Number / Rotation
Shaft Type TRD-MX□A 4.5 to 13.2 V DC Output with 2-phase origin (Origin reverse action      ) Open collector output 100, 200, 360, 500, 512,
600, 1,000, 1,024
TRD-MX□B 10.8 to 26.4 V DC
TRD-MX□V 4.75 to 5.25 V DC Output with 2-phase origin (Origin direct action     ) Line driver output

Pulse and Frequencies

Pulse Number per Rotation 100 200 360 500 512 600 1,000 1,024
Maximum Response Frequency (kHz)* 10 20 36 50 50 60 100 100
Applicable Models TRD-MX□A
TRD-MX□B
TRD-MX□V

Electrical Specifications

Model Number TRD-MX□A TRD-MX□B TRD-MX□V
Power Supply Supply Voltage 4.5 to 13.2 V DC 10.8 to 26.4 V DC 4.75 to 5.25 V DC
Allowable Ripple 3% rms or less 3% rms or less
Consumption Current (No Load) 50 mA or lower 50 mA or lower
Output Waveform Signal Format 2-phase output + home position 2-phase output + home position
Maximum Response Frequency (Maximum Response Frequency/Resolution) x 60 (Maximum Response Frequency/ Resolution) x 60
Duty Ratio 50±25% 50±25%
Phase Difference Width 25±12.5% 25±12.5%
Signal Width at Home Position 100±50% 100±50%
Output Rise / Fall Time Not larger than 2 µs (Cable length 1 m, maximum load) Not larger than 2 µs
(Cable length 1 m, maximum load)
Output Form NPN open collector output Line driver output*
Output Logic Negative logic (Active low) Positive logic (Active high)
Output Voltage "H" ̶ 2.5 V or higher
"L" 0.4 V or lower 0.5 V or lower
Output Current Influx Up to 30 mA Up to 20 mA
Outflow ̶
Load Supply Voltage 30 V DC or lower ̶

Mechanical Specifications

Starting Torque 0.001 N・m or less (20˚C)
Moment of Inertia 1 x 10-7  kg・m2
Shaft Allowable Load Radial: 10 N
Thrust: 5 N
Maximum Allowable Number of Revolutions (Note 1) 6,000 rpm
Cable Outside diameter φ5 mm
5-core shielded oil-resistant vinyl chloride cable Core wire nominal cross-sectional area: 0.14 mm2 (Line driver output is 8 cores, 0.14 mm2)
Weight Approx. 80 g

Environmental Requirements

Use Ambient Temperature -10 to +70˚C
Storage Ambient Temperature -25 to +85˚C
Use Ambient Humidity 35 to 85% RH (No condensation)
Withstand Voltage Excluded due to capacitor grounding
Insulation Resistance 20 MK or higher
Vibration Resistance (Endurance) Displacement half amplitude:
0.75 mm, 10 to 55 Hz, 3 axial directions, each 1 h
Impact Resistance (Endurance) 490 m/s2
11 ms, each 3 times in 3 axial directions
Protective Structure Dustproof type: IP50