Effective Coreless Servo Motor Spec Sheet
Coreless Servo Motor Typical Applications: Steering Gear, Intelligent Robot
| Motor model |
NFP-EM2854RBG-A |
NFP-EM2854RBG-B |
| Nominal voltage |
24V DC |
36V DC |
| No-load speed |
12,000rpm |
12,000rpm |
| No-load current |
0.22A |
0.08A |
| Nominal speed |
11,000rpm |
11,000rpm |
| Nominal torque |
22.8mNm |
20mNm |
| Nominal current |
1.75A |
0.78A |
| Stall torque |
273.6mNm |
240mNm |
| Stall current |
14.9A |
8.9A |
| Terminal resistance |
1.61Ω |
4.03Ω |
| Torque constant |
18.7mNm/A |
28mNm/A |
| Speed constant |
500rpm/V |
333rpm/V |
| Mechanical time constant |
8.88ms |
8.82ms |
| Rotor inertia |
3.59g.cm² |
3.59g.cm² |
Coreless Servo Motor Terminal Connection Data Sheet
| Terminal definition A |
|
| 8*#26PE lead + JST terminal |
|
| 1: MC |
5: HC |
| 2: MB |
6: HB |
| 3: MA |
7: HC |
| 4: GND |
8: VCC |
| Connection B: EN60603-13/DIN-41651 Pitch 2.54mm10pin |
|
| Flat band cable: |
|
| Sequence: |
|
| 1: MOTOR+ |
6: Channel A |
| 2: VCC DC5V |
7: Channel B- |
| 3: GND |
8: Channel B |
| 4: MOTOR- |
9: Channel Z- |
| 5: Channel A- |
10: Channel Z |
Coreless Servo Motor Stage Data Sheet
| Stage |
NFP-EM2854RBG-A |
NFP-EM2854RBG-B |
NFP-EM2854RBG-C |
NFP-EM2854RBG-D |
NFP-EM2854RBG-E |
| Reduction ration |
3.57 |
12.76; 16 |
45.55; 51.02 |
182.22; 204.08 |
728.86; 816.33 |
| |
4 |
18.4; 22 |
58.67; 64 |
262.86; 302.29 |
1024; 1209.14 |
| |
5.5 |
|
73.6; 84.64 |
338.56; 404.8 |
1557.38; 1936 |
| |
|
|
101.2; 121 |
465.52; 556.6 |
2286;2662 |
| Rate torque |
0.5Nm |
1Nm |
3Nm |
4Nm |
4Nm |
| Stall torque |
0.8Nm |
2Nm |
4Nm |
5Nm |
5Nm |
| Max efficiency |
90% |
81% |
73% |
65% |
59% |
| Length |
26.7mm |
31.2mm |
35.7mm |
40.2mm |
44.7mm |
| No-load backlash |
1.5° |
1.5° |
2° |
2° |
2.5° |
Coreless Servo Motor Encoder Data Sheet
| Encoder |
| Basic parameters: |
| Supply voltage: DC 3.3~5V |
| Typical current :15mA |
| Max.Mech.Speed(min-1) 25,000rpm |
| Intergral Non-Linearity: ±0.5~1° |
| Differential (ABZ) Non-Linearity: ±0.01° |
| Number of pulses per revolution: 1~4096PPR |
| Single -turn absolute coding: 18-bit(SPI) |
| Power-Up-Time16ms |
| Propagation Delay: 1~3us |
| Rsing Time: 1us |
| Falling Time: 1us |
| Storage Temperature: -20~45°C |
| Operating Temperature: -20~80°C |
High Torque Coreless Servo Motor Mechanical Diagram
Durable 54mm Coreless Servo Motor Performance Curve
