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Naming convention for RA3 series
RA3 series port definition
|
Number |
Name |
Explanation |
|
1 |
Digital tube display |
5-digit 8-segment LED digital tube |
|
2 |
USB |
USB Type-C interface, connected to PC |
|
3 |
CN1 (Interface Connector) |
Connection port for output/input signals, connected to programmable logic controller (PLC) or control I/O |
|
4 |
CN6 (fully closed-loop encoder connector) |
Fully closed-loop interface, connected to an external second encoder, supported by the 'FS' model |
|
5 |
CN2 (Encoder Connector) |
Encoder interface, connected to the encoder on the servo motor |
|
6 |
CN3 (connector for safety functions) |
STO interface, only '- S/FS' models support this function |
|
7 |
Grounding screw |
Connect to the power ground wire and motor ground wire |
|
8 |
CHARGE (Bus Voltage Indicator) |
Power indicator light |
|
9 |
L1C, L2C (control power input terminal) |
Control circuit power supply, connect single-phase power supply (depending on the model, 200~240VAC or |
|
10 |
R, S, T (main power input terminal) |
380~440VAC, 50/60Hz power supply) |
|
11 |
P, B1, B2 (external brake resistor connection terminal) |
Main circuit power supply, connected to three-phase power supply (depending on the model, 200~240VAC or |
|
P, N1, N2 (servo bus terminal) |
Do not remove the short-circuit between N1 and N2; connect it between P and N1 for multiple servo common DC buses |
|
|
12 |
U, V, W, PE (servo motor connection terminals) |
Use an external braking resistor (remove the short-circuiting piece between P and B1, and connect it to both ends of P and B2) |
|
13 |
CN4/CN5 (communication terminals) |
Used for multiple servo common DC buses |
|
Servo driver output, connected to motor power connectors (U, V, W, PE) |
||
|
485 communication port |
Electrical specifications for a three-phase 380V driver
| Item | Size C | Size D | Size E | Size F | ||||||||
| Model | 3R5T | 5R4T | 8R4T | 12RT | 17RT | 21RT | 26RT | 32RT | 38RT | 45RT | 60RT | |
| Power Capacity [kVA] | 2.3 | 3.5 | 4.5 | 6.2 | 8.1 | 11 | 14.5 | 20 | 25 | 32 | 40 | |
| Continuous Output Current [Arms] | 3.5 | 5.4 | 8.4 | 12 | 16.5 | 21 | 25.7 | 32 | 38 | 45 | 60 | |
| Instantaneous Maximum Output Current [Arms] | 11 | 14 | 20 | 29.75 | 41.25 | 52.12 | 64.25 | 64 | 76 | 90 | 120 | |
| Main Circuit | Continuous Input Current [Arms] | 3.4 | 4.5 | 6.6 | 9.3 | 12 | 16 | 21 | 24 | 31 | 36 | 48 |
| Main Circuit Power Supply | Three-phase 380~440Vac, -10%~+10%, 50/60Hz | |||||||||||
| Control Circuit | Control Circuit Power Supply | Single phase 380~440Vac, -10%~+10%, 50/60Hz | Busbar power supply, shared power input and rectification | |||||||||
| Power Loss | Main Circuit Power Loss [W] | 34.4 | 70.9 | 95 | 155 | 238 | 275 | 336 | 396 | 472 | 540 | 650 |
| Control Circuit Power Loss [W] | 22 | 22 | 25 | 25 | 27 | 27 | 27 | |||||
| Braking Resistor | Braking Resistor Function | Standard built-in | Does not support built-in | |||||||||
| Resistance Value [Ω] | 100 | 100 | 50 | 50 | 35 | 35 | 35 | - | ||||
| Capacity [W] | 80 | 80 | 80 | 80 | 100 | 100 | 100 | - | ||||
| Minimum Allowable External Resistance Value [Ω] | 80 | 60 | 45 | 40 | 35 | 25 | 25 | 25 | 20 | 20 | 16 | |
| Maximum Braking Energy Absorbable by Capacitor [J] | 33.2 | 40.33 | 59.3 | 59.3 | 97.26 | 118.61 | 118.61 | 177.22 | 212.66 | 265.83 | 319.97 | |
| Cooling Method | Air Cooling | |||||||||||
| Overvoltage Category | OVC Ⅲ | |||||||||||
Size E
|
Size E - 18RN/22RN/27RN/17RT/21RT/26RT |
|||
| W(mm) | 90 | W1(mm) | 79 |
| H(mm) | 237 | H1(mm) | 226 |
| D(mm) | 227 | Screw | 4-M5 |
