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Koyo encoders. TRD-S/SH Series.

φ38 Incremental Type

  • Thin design with an outside diameter of φ38 mm / depth of 30 mm
  • Small diameter lineup with resolutions up to 2,500 P/R
  • Low price contributes to cost reduction of the system.
  • IP40 protective structure

Model Number List

Type Appearance Model Number Supply Voltage Output Output Form Pulse Number / Rotation
Shaft Type TRD-S□A 4.5 to 13.2 V DC Output with 2-phase origin (Origin reverse action      ) Open collector output 10, 20, 30, 40, 50, 60, 100,
200, 250, 300, 360, 400,
500, 512, 600, 800, 1,000,
1,024, 1,200, 2,000, 2,500
TRD-S□B 10.8 to 26.4 V DC
TRD-S□V 4.75 to 5.25 V DC Output with 2-phase origin (Origin direct action     ) Line driver output
Hollow Shaft Type TRD-SH□A 4.5 to 13.2 V DC Output with 2-phase origin (Origin reverse action      ) Open collector output
TRD-SH□B 10.8 to 26.4 V DC
TRD-SH□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 10 20 30 40 50 60 100 200 250 300 360 400 500 512 600 800 1,000 1,024 1,200 2,000 2,500
Maximum Response Frequency (kHz)* 1 2 3 4 5 6 10 20 25 30 36 40 50 50 60 80 100 100 120 200 200
Applicable Models TRD-S□A/TRD-SH□A
TRD-S□B/TRD-SH□B
TRD-S□V/TRD-SH□V

Electrical Specifications

Model Number TRD-S□A/TRD-SH□A TRD-S□B/TRD-SH□B TRD-S□V/TRD-SH□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 ̶
Consumption Current (No Load) 50 mA or lower
Output Waveform Signal Format 2-phase output + home position
Maximum Response Frequency 200 kHz
Duty Ratio 50±25%
Phase Difference Width 25±12.5%
Signal Width at Home Position 100±50%
Output Rise / Fall Time Not larger than 1 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 Up to 30 mA (Sink current) Up to 20 mA
Load Supply Voltage 30 V DC or lower ̶

Mechanical Specifications

Starting Torque 0.001 N・m or less (+20˚C)
Moment of Inertia 0.3 x 10-6  kg・m2
Shaft Allowable Load Radial: 20 N
Thrust: 10 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. 100 g (With 1 m cable)

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
60 pulses or lower: 500 V AC (50/60 Hz) 1 minute*
Insulation Resistance 50 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 Simple Dustproof type: IP40