High speed low inertia AC servo motor EM3A-20

Output power

2000 W

Rated speed

3000 rpm

Maximum speed

5000 rpm

Rated torque

6.37 Nm

Flange

100 mm

EM3A-20

EM3A-20 series is a medium power (2000 W) and compact flange size servomotor. This motor with low rotor inertia and high dynamics is suitable for high speed applications. Motors available with optical 23-bit or magnetic 17-bit absolute encoder.

Technical data

Rated torque

6.37 Nm

Maximum torque

19.1 Nm

Rated current (200 V models EM3A-20A)

12.6 A

Rated current (400 V models EM3A-20D)

6.4 A

Maximum current (200 V models EM3A-20A)

42.0 A

Maximum current (400 V models EM3A-20D)

20.5 A

Motor inertia (motor without brake)

2.95 kg∙cm²

Motor inertia (motor with brake)

3.72 kg∙cm²

Allowable radial shaft load

686 N

Allowable axial shaft load

196 N

Optional brake holding torque

≥8 Nm

Optional brake voltage

24 VDC

Weight (motor without brake)

6.1 kg

Weight (motor with brake)

7.5 kg

Rated torque

6.37 Nm

Maximum torque

19.1 Nm

Rated current (200 V models EM3A-20A)

12.6 A

Rated current (400 V models EM3A-20D)

6.4 A

Maximum current (200 V models EM3A-20A)

42.0 A

Maximum current (400 V models EM3A-20D)

20.5 A

Motor inertia (motor without brake)

2.95 kg∙cm²

Motor inertia (motor with brake)

3.72 kg∙cm²

Allowable radial shaft load

686 N

Allowable axial shaft load

196 N

Optional brake holding torque

≥8 Nm

Optional brake voltage

24 VDC

Weight (motor without brake)

6.1 kg

Weight (motor with brake)

7.5 kg

Available motor models

Motor model Encoder Brake Servo driver Input drive supply voltage
EM3A-20ALB224 Absolute optic encoder,
resolution 23-bit
(8 388 608 ppr)
- ED3L-20AMA
ED3L-20AEA
ED3L-20APA
Single or three phase AC
200V...240V
EM3A-20ALB244
EM3A-20ATB224 Absolute magnetic encoder,
resolution 17-bit
(131 072 ppr)
-
EM3A-20ATB244
EM3A-20DLB224 Absolute optic encoder,
resolution 23-bit
(8 388 608 ppr)
- ED3L-20DMA
ED3L-20DEA
ED3L-20DPA
Three phase AC
380V...440V
EM3A-20DLB244
EM3A-20DTB224 Absolute magnetic encoder,
resolution 17-bit
(131 072 ppr)
-
EM3A-20DTB244

Dimensions of AC servo motor EM3A-20

Dimensions of AC servo motor EM3A-20

Speed-torque curves of AC servo motor EM3A-20

Speed-torque curves of AC servo motor EM3A-20

Description of AC servo motor EM3A-20

EM3A-20 series is a medium power (2000 W) and compact flange size servomotor. This motor with low rotor inertia and high dynamics is suitable for high speed applications. Motors are available with optical 23-bit or magnetic 17-bit absolute encoder. Products can be provided with a 24 VDC holding brake option.

The EM3A series boasts a low inertia design for extremely-fast response times. These motors are highlighted with the perfect combination of compact size and high torque performance, ensuring unparalleled dynamic response and precision positioning when used together with servo drivers ED3L series. Versatile and powerful, the these servo drive systems has a wide range of applications, thanks to its top-tier performance, varied power range, and compact form factor. Elevate your technical operations with the EM3A series servo motors and ED3L servo drive system.

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