
Servomotor type BH20
Servomotors with natural air cooling. Mechanics with flange in square case of 200mm and 5 body lengths. Stall torque in service S1 not self-cooled from 30 Nm to 117 Nm. Power connection through terminal box, signal connection through M23 connector.
Electrical specification
Version for 400VAC power supply |
Symbol | U.meas. | BH20S | BH20N | BH20M | BH20L | BH20G | |||||||||||
Drive power supply voltage |
400VAC | |||||||||||||||||
Stall torque at 100K Dt |
To | Nm | 33,6 | 48,5 | 64,7 | 87,2 | 116,5 | |||||||||||
Rated speed | n | RPM | 1000 | 2000 | 3000 | 1000 | 2000 | 3000 | 1000 | 2000 | 3000 | 1000 | 2000 |
NA |
1000 | 2000 | NA | |
Power at rated speed at 100K Dt | Pn | W |
3150 | 5400 | 6750 | 4430 | 6890 | 6380 | 5630 | 8210 | 5720 | 6960 | 8290 | - | 9120 | 10140 | - | |
Torque at rated speed at 100K Dt | Tn |
Nm |
30,1 | 25,8 | 21,5 | 42,3 | 32,9 | 20,3 | 53,8 | 39,2 | 18,2 | 66,5 | 39,6 | - | 87,1 | 48,4 | - | |
Peack torque S3 10% | Tpk |
Nm |
100 | 160 | 210 | 300 | 410 | |||||||||||
Poles number | PN | 6 |
||||||||||||||||
Winding resistance 20°C phase/phase | Rw |
Ohm |
3,1 | 0.94 | 0,34 | 1,6 | 0.48 | 0,17 | 1,35 | 0.28 | 0,151 | 0,6 | 0.19 | - | 0,44 | 0.14 | - | |
Inductance phase/phase 50Hz | Lw |
mH | 31 | 9.2 | 3.36 | 20 | 5.80 | 2.1 | 16.6 | 6.10 | 1.96 | 8.6 | 2.70 | - | 6.8 | 2.25 | - | |
EMC constant referred to 20°C | Ke | V/Krpm | 285 | 157.8 | 94.6 | 282 | 158 | 95.1 | 315 | 148 | 105.7 | 289 | 160 | - | 300 | 178 | - | |
Torque constant | Kt | Nm/Arms | 4.4 | 2.44 | 1.46 | 4.27 | 2.37 | 1.42 | 4.8 | 2.24 | 1.6 | 4.25 | 2.36 | - | 4.17 | 2.38 | - | |
Rated voltage 100°C | Vn | V |
325 | 331 | 287 | 318 | 319 | 274 | 334 | 286 | 288 | 290 | 295 | - | 293 | 300 | - | |
Stall current at 100K Dt | Io |
A | 7.6 | 13.7 | 22.9 | 11.3 | 20.5 | 34.1 | 13.5 | 28.9 | 40.5 | 20.5 | 36.9 | - | 28.5 | 49.8 | - | |
Rated speed current at 100K Dt | In |
A | 6.8 | 10.5 | 14.5 | 9.9 | 13.9 | 14.4 | 11.2 | 17.5 | 11.8 | 15.6 | 16.8 | - | 20.9 | 20.4 | - | |
Peak current | Ipk | A | 30 | 54 | 87 | 48 | 81 | 135 | 58 | 114 | 150 | 91.1 | 162 | - | 112 | 195 | - |
Mechanical data
Motor type BH20 |
Symbol | U.meas. | BH20S | BH20N | BH20M | BH20L | BH20G |
Rotor inertia | Jm | gm2 | 7.84 | 10.76 | 13.68 | 19.52 | 25.36 |
Rotor inertia with brake | Jm | gm2 | 13.06 | 15.98 | 18.90 | 24.74 | 30.58 |
Weight |
M | Kg | 32.5 | 40 | 45 | 59.5 | 72.5 |
Weight with brake | Nb | Kg | 49.5 | 57 | 62 | 76.5 | 89.5 |
Thermal features
Motor type BH20 |
Symbol | U.meas. | BH20S | BH20N | BH20M | BH20L | BH20G |
Operating temperature |
°C | 0÷40 |
|||||
Insulation class | Winding class H - Motor class F | ||||||
Cooling system |
Natural air cooling: IC0041 | ||||||
Standard protection | IP54 |
Brake specifications
Motor type BH20 |
Symbol | U.meas. | BH20S | BH20N | BH20M | BH20L | BH20G |
Static braking torque 100°C * | Tb | Nm | 160 | ||||
brake power at 20°C |
Pb | W | 55 | ||||
Coupling time | ms | 13 | |||||
Release time | ms | 140 | |||||
Voltage of activation ±5% | VDC | 24 | |||||
Backlash | Arcmin | 8 | |||||
* torque obtained after running in |
Feedbacks available
Motor type BH20 |
Order Code | BH20S | BH20N | BH20M | BH20L | BH20G |
Resolver | code 1 | Available | ||||
Optical incremental enc. 1024ppr 5V LD with Hall's sensors | cod.2 | Not Available | ||||
Optical incremental enc. 2500ppr 5V LD with Hall's sensors |
cod.200 | Available | ||||
Magnetic incremental enc. 1024ppr with Hall's sensors | cod.280 | Not Available | ||||
Magnetic Absolute enc. 1024ppr SSI Bin | cod.480 | Not Available | ||||
Multiturn Mechanical Absolute Enc. 22Bit, 4096 rev, BiSS with SinCos | cod.512 | Available | ||||
Standard technical specifications
Type |
||
- Synchronous permanent magnet servomotor ( brushless ) |
||
Rotor |
||
- rare earth permanent magnets ( NdFeB ) |
||
Insulation |
||
- winding, class H; Motor Class F |
||
Winding |
||
Standard |
- 1000 - 2000 - 3000rpm |
|
On demand |
- other combinations of voltage and speed possible. |
|
Insulation |
- winding in classH |
|
Thermal protection sensors |
||
Standard |
- PTC |
|
Optional |
- KTY84 only on some type |
|
Cooling system |
||
|
- natural air ( IC0041 ) |
|
Standard Protection |
||
- IP54 - The IP65 protection on the shaft side must be requested and is considered effective only in the presence of an oil bath coupling or with the presence of lubricant. |
||
Ballbearing |
||
- ball bearings with double screen lubricated for life |
||
Balancing |
||
- Grade "R" |
||
Concentricity and perpendicularity of the axis / flange |
||
- grade "N" (normal) - according to IEC 72 - DIN0530 |
||
Shaft output |
||
- with key, with coaxial threaded hole |
||
Brake |
||
- optional. Permanent magnet parking brake, 24VDC power supply with specific polarity. Brake engaged in the absence of power. Braking torque greater than the motor Tn |
||
Connections and cables |
||
Power | - on terminal box ( M code ) |
|
Signal | - horizontal connector type M23 ( code G ) |
Dimensions
Motor type |
L | LF | X | XF | Note |
BH20S | 265 | 302 | 182 | 385 | 1) the oil seal is mounted only if a coupling in an oil bath is foreseen |
BH20N | 301 | 338 | 218 | 421 | |
BH20M | 337 | 374 | 254 | 457 | |
BH20L | 409 | 446 | 326 | 529 | |
BH20G | 481 | 518 | 398 | 601 |