Minituarized AC Servomotors
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Series Series ● Planetary Gearhead ● EA25

■ Features ● By using a neodymium (NdFeB) magnet, it is compact, has excellent responsiveness ● It balances the rotor and reduces mechanical vibration. ● The slotless coil suppresses cogging and enables smooth rotation even at low speeds. ● It has achieved high precision positioning by installing a small high-pulse encoder. ● Because of the brushless structure, the life of the ball bearing is the only factor that affects ● The cable length between the motor and driver can be extended up to 10 meters. (For line driver type) Contents  ■ General Information ● System Configuration ● Basic...

System Configuration Control Driver Pulse Control ＝Products of Citizen Chiba Precision Basic Characteristics of AC Servomotor at Rated Voltage Wire Color of Encoder Speed (rpm) A Phase ………… Yellow B Phase ………… Green Z Phase ………… White ＋5V ……… Red GND ………… Black Maximum Speed Continuous Operation Region Short Term Operation Region Torque (mN･m) Rated Torque Peak Torque Model Number Outer Diameter Length Reduction Ratio Gearhead Type Number of pulses of encoder A：Without gearhead G：With gearhead

Line Driver Encoder Open Collector Encoder Line Driver Encoder Open Collector Encoder φ16.0 ● Please see page 9 for driver specifications. ● We recommend Line Driver Encoder if a long transmission distanance is required between motor and driver. (Please see page10) Items Rated Output Rated Torque Rated Speed Peak Torque Power Rate Torque Constant EMF Constant Number of Poles Rotor Inertia (GD 2/4) Winding Insulation Class Encoder Operating Ambient Temperature /Humidity Storage Temperature / Humidity Weight W mN･m gf･cm oz･in rpm mN･m (gf･cm) w/s mN･m/A V/krpm − g･cm2 − P/R − − g *Note : The...

Line Driver Encoder Open Collector Encoder Line Driver Encoder Open Collector Encoder ● Please see page 9 for driver specifications. ● We recommend Line driver Encoder if a long transmission distance is required between motor and driver. (Please see page10) Items EA-2151 EA-2169 Rated Output W 10.0 6.0 Rated Torque mN･m gf･cm oz･in 9.81 100 1.39 16.38 167 Rated Speed rpm 6000 Peak Torque mN･m (gf･cm) 40.2 (410) 23.5 (240) 400 245 w/s Power Rate Torque Constant mN･m/A 29.6 23.9 V/krpm EMF Constant 3.1 2.5 Number of Poles − 2 g･cm 2 Rotor Inertia (GD 2/4) 6.7 3.9 − Winding Insulation Class...

Line Driver Encoder Open Collector Encoder Line Driver Encoder Open Collector Encoder ● Please see page 9 for driver specifications. ● We recommend Line driver Encoder if a long transmission distance is required between motor and driver. (Please see page10) Items Rated Output Rated Torque Rated Speed Peak Torque Power Rate Torque Constant EMF Constant Number of Poles Rotor Inertia (GD 2/4) Winding Insulation Class Encoder Operating Ambient Temperature /Humidity Storage Temperature / Humidity Weight W mN･m gf･cm oz･in rpm mN･m (gf･cm) w/s mN･m/A V/krpm − g･cm2 − P/R − − g 10.8 Class F...

Line Driver Encoder Open Collector Encoder Line Driver Encoder Open Collector Encoder ● Please see page 9 for driver specifications. ● We recommend Line driver Encoder if long transmission distance is required between motor and driver. (Please see page10) Items Rated Output Rated Torque Rated Speed Peak Torque Power Rate Torque Constant EMF Constant Number of Poles Rotor Inertia (GD 2/4) Winding Insulation Class Encoder Operating Ambient Temperature /Humidity Storage Temperature / Humidity Weight W mN･m gf･cm oz･in rpm mN･m (gf･cm) w/s mN･m/A V/krpm − g･cm2 − P/R − − g *Note : The above...

Allowable Output Torque Reduction Ratio Maximum Speed Radial Load Thrust Load ■ Specifications Reduction Ratio Allowable Output Torque Maximum Speed Radial Load Thrust Load

■ Specifications Reduction Ratio Reduction Ratio Allowable Output Torque Allowable Output Torque Allowable Allowable Radial Load Radial Load N(kgf) N(kgf) Allowable Allowable Thrust Load Thrust Load N(kgf) N(kgf) Maximum Maximum Speed Speed Output Output oz-in oz･in Allowable Allowable ■ Specifications ■ Specifications Reduction Ratio Reduction Ratio Allowable Output Torque Allowable Output Torque Maximum Speed Maximum Speed Thrust Load Radial Load Thrust Load Radial Load

Driver for AC Servomotors (EA Series) for Open Collector for Line Driver ● This is a 3-phases sine wave PWM driver ● This is a driver exclusive for Citizen Chiba Precision s Miniaturized AC Servomotor ● It is downsized by adopting digital servo control which uses ASIC and CPU ● DC24V single power supply (Built-in control battery) ■ Dimensional Drawing (Unit: mm & inch) Micro Controller Forward Backward 3-phases Alternating Current/ d-q Coordinate Converter id GLOW RESET Gate Array Position command Position controller Speed Detector 3 -phases Alternating Current/ d-q Coordinate Converter...

The last 3 digits, 012, of the model number is for EA-17 / EA-21 Series, and 030 is for EA-25 / EA-30 Series Model Input Power Supply Continuous Rated Output Current Maximum Rated Output Current Driving System 3-Phases Sine Wave PWM Position Control / Speed Control / Torque Control ※Jumper Circuit Setup Control System Encoder Encoder Input Hall Sensor Limit Sensor Operating Temperature/ Humidity Open Collector or Line Driver *1 φA、φB、φZ φU、φV、φW (Hall IC) *Line Driver Input is possible *1 CW Prohibited / CCW Prohibited 0∼40℃ / Below 85% RH without condensation Storage Temperature Outside...

Cautions for Handling  Motor, Gearhead, Encoder, Driver, and accessories are precision-machined products and it is assumed that all the cautions and warnings listed below are correctly understood and handled.  Please do not install, operate, maintain or inspect the product until you have a full knowledge on the product, safety information and cautions.  The cautions required for safety are as follows. 【Caution when Unpacking】 ● When you received the product, please check the package for damage and if it is the product you ordered. 1.  Be sure to check the wiring before turning on the power....