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Incremental Encoders

◆About Incremental encoder
Incremental encoders generate pulses in a frequency proportional to the rotational speed.The encoders can be used for speed control, position control, or as a rotation indicator or a pulse generator of servo motors mounted in machine tools, robots, or measuring equipment.Optical incremental encoders are composed of rotor plate, fixed slit, light emitting diodes, photo transistors, etc. as shown in Figure 1.The fixed slit is designed to have 90 degree phase difference to the slit on the rotor plate.Output signals are two signals with 90 degrees difference; A-phase signal and B-phase signal, and the rotational direction can be detected with them.There are encoders which output the additional Z-phase signal as the origin signal.When controlling positions with an incremental encoder, the Z signal which shows the origin is used.

Incremental Encoders

◆Incremental Encoder Simplified Structure

Incremental Encoder Simplified Structure  

◆Magnetic Encoder Simplified Structure

Magnetic Encoder Simplified Structure  

Shaft Type

Model No. TS53□□ TS51□□ TS50□□ TS50□□
External Appearance
Outside Diameter Φ38mm Φ66mm □68mm Φ128mm
Series OIS38 OIS66 OIS68 OIS128
Resolution (Counts/Turn) 100~2,500C/T 100~5,000C/T 25~5,000C/T
Output Phase A,B,Z Phase A,B Phase
Max Response Frequency 200kHz 125kHz 25kHz
Consumption Current
(NOTE 1)
100mA Max 200mA Max 300mA Max
Output Form Open Collector
Line Driver
Voltage
Open Collector
Line Driver
Voltage
Complementaly
Shaft Loading
(NOTE 2)
Radial 21.6N
(2.2kgf)
98N
(10kgf)
392N
(40kgf)
Axial 10.8N
(1.1kgf)
12.7N
(1.3kgf)
49N
(5kgf)
Starting Torque 4.4×10-3N⋅m
(45gf⋅cm Max)
2.9×10-3N⋅m
(30gf⋅cm Max)
9.8×10-2N⋅m
(1kgf⋅cm Max)
0.2N⋅m
(2kgf⋅cm Max)
Protection
(NOTE 3)
IP=50 IP=52 IP=57
Operating Temp.Range -10∼+70°C
(OIS38 Series Line Driver Type:0∼+75°C)
0∼+50°C
Vibration(NOTE 4) 49m/s2 (5G) 98m/s2 (10G)
Shock(NOTE 5) 490m/s2 (50G) 980m/s2 (100G)
Mass 0.15kg Max 0.5kg Max 1kg Max Mount Type:7kg Max
Flange Type:8kg Max
  • NOTE 1) Consumption Current: This is a specification for no loading at output circuit.
  • NOTE 2) The specification for shaft allowable load shall be a mechanical value.
    Actual specification allows us to recommend within 20 percents of the specification.
  • NOTE 3) For special cases of protective structure, please consult us.
  • NOTE 4) Vibration: This is a value under the condition of meeting the total of 6( six) hours consisting of 2 hours for each of X, Y and Z axis.
  • NOTE 5) Shock: This is a value under the condition of meeting the total of 18 (eighteen)times consisting of 3 times for each of X, Y and Z axis.

Hollow snaft Type

Model No. TS517□ TS52□□N3□□ TS52□□N5□□ TS52□□N4□□
External Appearance
Outside Diameter □85mm Φ35mm Φ48mm Φ60mm
Series OIS85 OIH35 OIH48 OIH60
Resolution (Counts/Turn) 9,600~50,000C/T 500~6,000C/T 1,000~12,000C/T 1,000~8,192C/T
Output Phase A,B,Z,EU,EV,EW Phase
Max Response Frequency 576kHz
1.5MHz
2.5MHz
200kHz
Consumption Current (NOTE 1) 250mA Max 200mA Max
Output Form Line Driver
Shaft Loading
(NOTE 2)
Radial 19.6N
(2kgf)
Mounting Tolerance
 Radial 0.05mm TIR Max
 Axial 0.2mm Max
Shaft Runout 0.1°Max
Axial 9.8N
(1kgf)
Starting Torque 2.0×10-2N⋅m
(200gf⋅cm Max)
5.9×10-3N⋅m
(60gf⋅cm Max)
9.8×10-3N⋅m
(100gf⋅cm Max)
Protection
(NOTE 3)
IP=52 IP=40
(Electronic Circuits Disclosed)
IP=40
Operating Temp.Range -10∼+85°C -20∼+85°C
Vibration(NOTE 4) 49m/s2 (5G)
Shock(NOTE 5) 1,960m/s2 (200G) 490m/s2 (50G) 980m/s2 (100G)
Mass 1kg Max 0.2kg Max 0.3kg Max 0.5kg Max
  • NOTE 1) Consumption Current: This is a specification for no loading at output circuit.
  • NOTE 2) The specification for shaft allowable load shall be a mechanical value.
    Actual specification allows us to recommend within 20 percents of the specification.
  • NOTE 3) For special cases of protective structure, please consult us.
  • NOTE 4) Vibration: This is a value under the condition of meeting the total of 6( six) hours consisting of 2 hours for each of X, Y and Z axis.
  • NOTE 5) Shock: This is a value under the condition of meeting the total of 18 (eighteen)times consisting of 3 times for each of X, Y and Z axis.

Magnetic Encoder

Model No. TS5270N15 TS5291N100 TS5291N500
External Appearance
Series MIB0.4
Resolution (Counts/Turn) 1,024C/T
(Number of teeth = 256)
1,024C/T
(Number of teeth = 128)
128C/T
Output Phase A,B,Z Phase
Max Response Frequency 200kHz 409.6kHz 128kHz
Supply Voltage DC+5V
Consumption Current 300mA Max 200mA Max 100mA Max
Output Form Line Driver
Air Gap btwn Sensor & Wheel 0.15±0.01mm --
Radial Inalignment btwn Sensor & Wheel ±0.3mm --
Axial Inalignment btwn Sensor & Wheel ±0.5mm --
Starting Torque --
Protection IP=50 IP=66
Operating Temp.Range -10∼+80°C -20∼+85°C
Vibration Full Amplitude 1.5mm
0.5Hr(5∼500Hz)
80m/s2 Max
3-way 3Hr(10∼2,000Hz)
Shock 294m/s2 (30G) 1,000m/s2 Max
11ms Half sine wave 3-way, Each 6 times
Mass 0.5kg Max

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