RA3 Servo Drive

Power range from 100W to 7.5KW

Supports pulse, analog, EtherCAT and CANopen

Excellent performance

Velocity response frequency up to 3.0kHz

Accurate positioning

Velocity ripple ±lrpm, torque ripple 0.5%

Mult-function

STO, all-full closed loop, high-speed I0, vibration suppression, notch filter, homing

Ultra-high synchronization

Multi-node signal fluctuation within +20ns, synchronization circle up to 250us

Size A

Size B

Size C

Size D

Size E

No.

Name

No.

Name

No.

Name

No.

Name

No.

Name

1

Digital tube display

1

Digital tube display

1

Digital tube display

1

Digital tube display

1

Digital tube display

2

USB

2

USB

2

USB

2

USB

2

USB

3

CN1

3

CN1

3

CN1

3

CN1

3

CN1

Fully closed loop encoder connector

Fully closed loop encoder connector

4

CN6

4

CN6

4

CN6

4

CN2

4

CN2

5

CN2

5

CN2

5

CN2

5

L1、L2

5

L1、L2、L3

6

CN3

6

CN3

6

CN3

6

P、B

6

P、B1、B2

7

Ground screw

7

Ground screw

7

Ground screw

P、N

P、N

8

CHARGE

8

CHARGE

8

CHARGE

7

U、V、W

7

U、V、W

9

L1C、L2C

9

L1C、L2C

9

L1C、L2C

8

Ground screw

8

Ground screw

10

R、S、T

10

R、S、T

10

R、S、T

9

CHARGE

9

CHARGE

11

P、B1、B2

11

P、B1、B2

11

P、B1、B2

10

CN3

10

CN3

P、N

P、N

12

P、N1、N2

11

CN4/CN5

11

CN4/CN5

12

U、V、W、PE

12

U、V、W、PE

N1、N2

13

CN4/CN5

13

CN4/CN5

13

U、V、W

14

CN4/CN5

Description:

① Digital tube display: 5-digit 8-segment LED digital tube

②USB: USB Type-C interface, connected to PC

③CN1 (interface connector): output/input signal connection port, connected to programmable controller (PLC) or control I/O

④Fully closed-loop encoder connector: fully closed-loop interface, connected to external second encoder, '-FS' model supports this function

⑤CN2 (encoder connector): encoder interface, connected to the encoder on the servo motor

⑥L1, L2, L3 (main power input terminals): main circuit power supply, single-phase power supply is connected between L1 and L2 (200~240VAC, 50/60Hz power supply)

⑦L1C, L2C (control power input electronics): control circuit power supply, connected to single-phase power supply (200~240VAC or 380~440VAC, 50/60Hz power supply according to the model)

⑧R, S, T (main power input terminals ): Main circuit power supply, connect to three-phase power supply (200~240VAC or 380~440VAC, 50/60Hz power supply according to the model)

⑨P, B (external braking resistor connection terminal): use external braking resistor

⑩P, B1, B2 (external braking resistor connection terminal): use external braking resistor (remove the shorting piece between P and B1, connect to both ends of P and B2)

⑪P, N (N1, N2) (servo bus terminal): do not remove the shorting piece between N1 and N2, connect between P and N (N1) for multiple servos to share the DC bus

⑫N1, N2: connect external DC reactor (remove the shorting piece), short-circuit when not in use

⑬U, V, W, PE (servo motor connection terminal): servo drive output, connected to the motor power connector (U, V, W, PE)

⑭ Grounding screw: Connect to the power ground and motor ground

⑮CHARGE (bus voltage indicator): power indicator

⑰CN3 (connector for safety function): STO interface, only '-S/FS' models support this function

⑱CN4/CN5 (communication terminal): 485 communication port, EtherCAT high-speed communication port, CAN communication port

Single-phase / three-phase 220V drive electrical specifications

Item

Size A

Size B

Size C

Size D

Size C

Size D

Size E

Model

1R6L

2R8L

5R5L

5R6L

7R6M*

12RM*

7R6M

12RM

18RN

22RN

27RN

Power supply capacity [kVA]

0.5

1

1.7

2

2.3

4.2

2.3

4.2

6.9

8.4

10.3

Continuous output current [Arms]

1.6

2.8

5.5

6.6

7.6

12

7.6

12

18

22

27

Instantaneous maximum output current [Arms]

5.9

10.1

16.9

17

23

32

233

32

45

55

67.5

Main circuit

Continuous input current [Arms]

2.3

4

7.9

9.4

10.5

19.1

5.1

8.1

15

18

22

Main circuit power supply

Single phase 200~240VAC, -10%~+10%, 50/60Hz

Three-phase 200~240VAC, -10%~+10%, 50/60Hz

Control loop

Control circuit power supply

Busbar power supply, shared power supply input and rectification

Single phase 200~240VAC, -10%~+10%, 50/60Hz

Power loss

Main circuit power loss [W]

30.5

41

60.8

63

42.9

83.3

42.9

83.3

170

208

278

Control circuit power loss [W]

22

25

22

25

27

27

27

Braking resistor

Brake resistor function

No built-in support

Standard built-in

Resistance value [Ω]

-

-

50

50

25

25

25

25

20

20

20

Capacity [W]

-

-

50

50

80

80

80

80

100

100

100

External minimum allowable resistance value [Ω]

50

45

40

40

20

15

20

15

15

15

15

Maximum braking energy that the capacitor can absorb [J]

10.03

20.06

28.57

28.57

41.34

60.8

41.34

60.8

99.7

121.6

121.6

Cooling method

Natural cooling

Air Cooling

Overvoltage level

OVC III

Three-phase 380V drive electrical specifications

Item

Size C

Size D

Size E

Model

3R5T

5R4T

8R4T

12RT

17RT

21RT

26RT

Power supply capacity [kVA]

2.3

3.5

4.5

6.2

8.1

11

14.5

Continuous output current [Arms]

3.5

5.4

8.4

12

16.5

21

25.7

Instantaneous maximum output current [Arms]

11

14

20

29.75

41.25

52.12

64.25

Main circuit

Continuous input current [Arms]

3.4

4.5

6.6

9.3

12

16

21

Main circuit power supply

Three-phase 380~440VAC, -10%~+10%, 50/60Hz

Control loop

Control circuit power supply

Single phase 380~440VAC, -10%~+10%, 50/60Hz

Power loss

Main circuit power loss [W]

34.4

70.9

95

155

238

275

336

Control circuit power loss [W]

22

22

25

25

27

27

27

Braking resistor

Brake resistor function

Standard built-in

Resistance value [Ω]

100

100

50

50

35

35

35

Capacity [W]

80

80

80

80

100

100

100

External minimum allowable resistance value [Ω]

80

60

45

40

35

25

25

Maximum braking energy that the capacitor can absorb [J]

33.2

40.33

59.3

59.3

97.26

118.61

118.61

Cooling method

Air Cooling

Overvoltage level

OVC III

Size A

Size B

Size C

Size D

Size E