A resolver is an angle sensor that outputs rotational angles as two-phase AC voltages (analog signals). It features structurally high environmental resistance compared to other sensors due to its simple design comprised of only an iron core and a coil.

Brushless resolvers(FA-SOLVER®)

Brushless resolver can be used for high accurate feedback of position and speed sensing, and pole detection of motor. Through their features of resistance for harsh environment and other reasons, they are used with motors for machine tools and robots, in steelworks.
We collectively call these brushless resolvers as FA-SOLVER®, and renewed their lineup to cope with a new FA era.

FEATURES

Wide temperature range

・Built-in type : -55 to +155℃
・Shaft type : -30 to +100℃
・Temperature compensation type (BRT): -10 to +80℃ (For details, please refer to each individual specification.)

Superior environment resistance

・Vibration : 196 m/s²{20 G} at 10 Hz to 500 Hz, for 2 hours to each of three axes.
・Shock : 981 m/s²{100 G} for 6 ms, 3 times to each of 6 axes, 18 times in total
・Humidity : 90 % RH or above at 60 °C

High speed rotation

・Built-in type : 10,000 min^-1(rpm)
・Shaft type : 6,000 min^-1(rpm)
Allowable rotation speed of some types may differ from the above values. For details, please refer to each individual specification. In addition, types exceeding 10,000 min^-1(rpm) are also available.

High reliability

Resolver has the similar structure to electric motors but has high reliability because of no winding coil on its rotor. In particular, the built-in types are free from maintenance because ball bearings are not installed in them.

Long-distance transmission

Robustness against noise enables long-distance transmission

Capable of compact incorporation

The use of built-in types of Resolver minimizes housings of motors. Best suited for compact design