TORQUE MOTOR RSMR series
TORQUE MOTOR RSMR series
Ruchservomotor JV designed and produced three series of torque motors: for instrument-industry (series RSM-24, series RSMR-24) and for machine-building industry (series RSM-36). The feature of motors series RSM-24 is small dimensions for low dimensions(profile) position systems.
Short
design description:
Torque motor (rotary synchronous motor) RSMR series consist of a fixed unit
(stator or primary part) and rotated steel ring with permanent magnets (rotor
or secondary part). The stator is cosist of a coil unit that is encapsulated
in thermally conductive compaund. Motor has built-in sensors for overheating
protection. The smoothness of movement is achieved by sinusoidal commutation
of currents in the coils.
Advantages:
Low profile (height 42mm), hollow shaft (dia112mm), no mechanical transmissions,
high precision, repeatability, highest resolution, no backlash, smooth movement.
Application:
Wafer handling, pick and place machinery, indexing tables.
TORQUE MOTOR
RSMR-T-24-237x25
| Specification | Unit |
||||
| Number of poles pair 2P | 17 |
31 |
|||
| Peak torque Mp (coil at 20°C) | Nm |
45 |
110 |
||
| Continuous torque Ma (coil at 120°C), air cooling | Nm |
17 |
41 |
||
| Peak current at Mp and N=0, |
Arms |
14,0 |
24,2 |
14,.0 |
24,2 |
| Continuos current at 120°C, air cooling at Ma and N=0 | Arms |
5,1 |
8,7 |
5,1 |
8,7 |
| Inductance |
mH |
15,.2 |
5,1 |
23 |
7,.6 |
| Resistance | Ohm |
2,9 |
0,96 |
4,3 |
1.4 |
| Maximum velocity at Mp and 310 VDC (Coil at 20°C) | rpm |
420 |
760 |
150 |
284 |
| Maximum velocity at Ma and 310 VDC (Coil at 20°C) | rpm |
725 |
1000 |
280 |
490 |
| Rotor moment inertia | kg.m2 |
0.01 |
0.062 |
||
| Maximal user payload | kg |
25 |
65 |
||
| Motor weight | kg |
7 |
10 |
||
| Motor height |
mm |
42 |
42 |
||
| Outer diameter of stator | mm |
200 |
290 |
||
| Hollow shaft | mm |
40,5 |
112 |
||
| Axial / radial runout | micron |
20
/ 20 |
30
/ 20 |
||
| Encoder output signal | 1
Vpp |
1
Vpp |
|||
| Number of encoder lines | 2048 |
5400 |
|||
| Position accuracy | arc.sec. |
35 |
45 |
||
| Repeatability | arc.sec. |
3 |
5 |
||
| Resolution | arc.sec |
0,5 |
0,2 |
||
Maximal temperature
of rotor 70°C.
The stator has built-in thermal sensor threshold type on temp 120 °C.
