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Empire Magnetics
Feedback Devices Resolvers for Brushless Motors
Resolver Specifications
| Model Description | Resolver provided with R Series Motors |
| Available Environment Options | All |
| Drawing Number | C/F |
| Compatible Motor | R-series |
| Excitation | 4VRMS, 5kHz |
| Transformation Ratio | 0.5 ± 5% |
| Output Voltage (VRMS) | (VRMS): 2 ± 5% |
| Impedance ZSO | 210 + j470 |
| Impedance ZSS | 200+ j420 |
| Impedance ZRO | 120 + j220 |
| Impedance ZRS | 105 + j220 |
| Rotor DC Resistance (Ohms) | 30 ± 15% |
| Stator DC Resistance (Ohms) | 30 ± 15% |
| Null Voltage (mVRMS) | 25 |
| Phase Shift at 25 degrees C (degrees) | -6.0 |
| Change With Temperature (degrees/degrees C) | 0.12 |
| Maximum Error (+/- arc min) | ±7 |
| Operating Temperature Range (degrees C) for IN-, DP-, AD-, VC-, WP-, PT- environments | -55 to +125 |
| Operating Temperature Range (degrees C) for VS-, WPRH-environments | -20 to +155 |
| Operating Temperature Range (degrees C) for HT-, RH-, VX-environments | -40 to +155 |
| Operating Temperature Range (degrees C) for CYVX- environment | -250 to +155 |
| Shock | N/A |
| Vibration | N/A |
Options
Features
- Long cable runs supported, up to 500 ft.
- Rugged construction, protected mounting
- Good electrical noise immunity–twisted shielded pair cabling
- Compatible–connects easily to -RDE resolver-to encoder converter
Feedback Devices
-Resolvers
Industrial working environments can be hard on position feedback transducers. Incremental rotary encoders are simple and cost effective in many motion control applications. However, encoders fail under extreme conditions such as high temperature, vacuum, radiation, or shock and vibration.
Brushless Resolvers Survive
Empire Magnetics makes resolver technology easy to apply with rugged motor-mounted resolvers and an easy to use resolver-to-encoder conversion module. Brushless resolvers and available with all Empire Magnetics motor products, providing shaft position information under harsh conditions.
The R series brushless motors, sizes R3x, R4x, R6x and R8x are provided with the 21 size resolver. Other Empire products may have resolvers with different electrical specifications.
Frequently Asked Questions (FAQ)
About Vacuum Installations
Part Number Configurator
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Government Projects & Defense Applications
Empire Magnetics has been awarded and completed US Navy contracts in excess of $100,000 as a prime contractor. The Cage code number assigned was OYMU1, CEC code 19665900H. As a subcontractor to RSI/Comsat, SAIC, Lockheed Martin, Westinghouse, General Electric and other prime contractors for the US Government, contracts in excess of $200,000 have been awarded and completed.
Nationwide & International Distributors for Specialty Motors & Complete Motor System Solutions
Empire Magnetics products are distributed by a nationwide and international network of motion control sales professionals. Your local distributor carries the drives and controls, and the accessories needed to build a complete motion control system.