T: +86-15800900153
E: songwenyan@windouble.com.cn
E: songwenyan@windouble.com.cn
No.1230, Beiwu Road, Minhang District,Shanghai,China
| Quantity: | |
|---|---|
J106XFS02658
Windouble
A resolver is a sensor used to measure the angular displacement between the rotor and stator of a motor. It consists of a stator with excitation windings and sine-cosine feedback windings, and a rotor made of laminated silicon steel. The rotor of the resolver is coaxial with the motor's rotor. When a sinusoidal excitation signal is applied, the rotating rotor alters the magnetic reluctance of the magnetic circuit, which in turn affects the amplitude of the feedback signals from the sine-cosine windings. The angle information contained in these signals is then extracted, which is the principle behind the resolver's angle measurement.
| Model | J106XFS02658 |
| Pole Pairs | 1:8 |
| Input Voltage | AC 26 Vrms |
| Input Frequency | 400 Hz |
| Transformation Ratio | 0.461 ±10% |
| Accuracy (of coarse resolver) | ±30' max |
| Accuracy (of fine resolver) | ±1' max |
| Phase Shift (of coarse resolver) | 8° ±3° |
| Phase Shift (of fine resolver) | 30° ±3° |
| Input Impedance (of coarse resolver) | (3270 ±491) Ω |
| Input Impedance (of fine resolver) | (390 ±59) Ω |
| Output Impedance (of coarse resolver) | (1100 ±165) Ω |
| Output Impedance (of fine resolver) | (240 ±36) Ω |
| Dielectric Strength | AC 500 Vrms 1min |
| Insulation Resistance | 250 MΩ min |
| Maximum Rotational Speed | 750 rpm |
| Operating Temperature Range | -55℃ to +155℃ |
The pole pairs are generally chosen to match the number of pole pairs of the motor. This ensures that the measured electrical angle does not require conversion for the inverter's coordinate transformation.
However, if the measurement of the electrical angle error meets the requirements, it is possible to use pole pairs that do not match. For example, if the motor has 4 pole pairs and the resolver has 2 pole pairs, when the resolver rotates by 90° electrical angle, the corresponding electrical angle for the motor is 180°, and vice versa.
Theoretically, the higher the number of pole pairs, the smaller the electrical error. When the resolver has more pole pairs than the motor, the maximum electrical angle frequency must be considered. The resolver ultimately needs to be used with a decoding chip. If the electrical angle frequency is too high, the second-order system may not be able to follow, making it impossible to resolve the angle.
For the fit condition of brushless resolver , it is recommended to adopt (transition fit) :H7/h6 and h6/H7;
The deviation between the motor shaft and the center of resolver rotor and stator shaft is generally required to be ≤ 0.03mm;
The verticality of the mating end face between the motor end cover and the resolver stator , the motor shaft and the resolver rotor is ≤ 0.05mm;
For the fabricated resolver (stator and rotor assembled together with bearings) , in addition to the above requirements , the motor shaft and resolver rotor can not be directly connected forcely , but need to be connected through a special coupling.
For more details or inquiries about our resolver products and solutions, please reach out to us at Shanghai Yingshuang (Windouble) Electric Machinery Technology Co., Ltd. We are committed to helping you optimize your mining operations with reliable and high-performance resolver technology.
A resolver is a sensor used to measure the angular displacement between the rotor and stator of a motor. It consists of a stator with excitation windings and sine-cosine feedback windings, and a rotor made of laminated silicon steel. The rotor of the resolver is coaxial with the motor's rotor. When a sinusoidal excitation signal is applied, the rotating rotor alters the magnetic reluctance of the magnetic circuit, which in turn affects the amplitude of the feedback signals from the sine-cosine windings. The angle information contained in these signals is then extracted, which is the principle behind the resolver's angle measurement.
| Model | J106XFS02658 |
| Pole Pairs | 1:8 |
| Input Voltage | AC 26 Vrms |
| Input Frequency | 400 Hz |
| Transformation Ratio | 0.461 ±10% |
| Accuracy (of coarse resolver) | ±30' max |
| Accuracy (of fine resolver) | ±1' max |
| Phase Shift (of coarse resolver) | 8° ±3° |
| Phase Shift (of fine resolver) | 30° ±3° |
| Input Impedance (of coarse resolver) | (3270 ±491) Ω |
| Input Impedance (of fine resolver) | (390 ±59) Ω |
| Output Impedance (of coarse resolver) | (1100 ±165) Ω |
| Output Impedance (of fine resolver) | (240 ±36) Ω |
| Dielectric Strength | AC 500 Vrms 1min |
| Insulation Resistance | 250 MΩ min |
| Maximum Rotational Speed | 750 rpm |
| Operating Temperature Range | -55℃ to +155℃ |
The pole pairs are generally chosen to match the number of pole pairs of the motor. This ensures that the measured electrical angle does not require conversion for the inverter's coordinate transformation.
However, if the measurement of the electrical angle error meets the requirements, it is possible to use pole pairs that do not match. For example, if the motor has 4 pole pairs and the resolver has 2 pole pairs, when the resolver rotates by 90° electrical angle, the corresponding electrical angle for the motor is 180°, and vice versa.
Theoretically, the higher the number of pole pairs, the smaller the electrical error. When the resolver has more pole pairs than the motor, the maximum electrical angle frequency must be considered. The resolver ultimately needs to be used with a decoding chip. If the electrical angle frequency is too high, the second-order system may not be able to follow, making it impossible to resolve the angle.
For the fit condition of brushless resolver , it is recommended to adopt (transition fit) :H7/h6 and h6/H7;
The deviation between the motor shaft and the center of resolver rotor and stator shaft is generally required to be ≤ 0.03mm;
The verticality of the mating end face between the motor end cover and the resolver stator , the motor shaft and the resolver rotor is ≤ 0.05mm;
For the fabricated resolver (stator and rotor assembled together with bearings) , in addition to the above requirements , the motor shaft and resolver rotor can not be directly connected forcely , but need to be connected through a special coupling.
For more details or inquiries about our resolver products and solutions, please reach out to us at Shanghai Yingshuang (Windouble) Electric Machinery Technology Co., Ltd. We are committed to helping you optimize your mining operations with reliable and high-performance resolver technology.
