R2AA08050FXPKF

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The R2AA08050FXPKF is a servo motor offering around 80W rated output power and operates at a rated speed of approximately 3000 rpm. Developed by Sanyo Denki as part of the R SANMOTION Servo Motors, it weighs approximately 0.96 kg. The motor supports a peak armature current of around 14.1 Arms and features a torque constant of 0.117 N·m/Arms.

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Product Description:

Sanyo Denki’s R2AA08050FXPKF is a highly acclaimed servomotor produced and released under the Sanmotion R series. As a rotary servomotor, this machine generates rotational force in the form of torque through electromagnetic induction. To generate the torque that drives loads and other components, this device must be connected to an AC power supply. Typically, Sanyo Denki’s R Sanmotion servomotors require a nominal input voltage of 200 VAC to deliver expected power output. Similar to other R2 servomotors, this unit is classified as a medium-inertia motor, which strikes a balance between speed and power output. The inertia for servomotors describes how resistant the shaft is to rotating.

At nominal operating conditions, the R2AA08050FXPKF can deliver a rated output of 500 to 550 watts. Although the R2AA08050FXPKF does not come with a standard blocking brake, it can still perform stopping functions when paired with a compatible servo amplifier or drive. Particularly, this unit can achieve a maximum rotational velocity of 6000 revolutions per minute. Whenever this machine operates at maximum speed, the torque cannot achieve its maximum rating simultaneously. For most servomotors, it is common to have both continuous and instantaneous or intermittent ratings. Usually, the ratings specified on the nameplate indicate the continuous rated values attainable by the motor at normal operating conditions.

Servomotors are normally employed for precise applications where monitoring of the rotor position and speed is necessary. To achieve this closed-loop control, servomotors such as the R2AA08050FXPKF usually rely on a built-in encoder. For this specific product model, the encoder is an absolute encoder that comes with a battery backup. Wake Industrial generously offers this compact servomotor along with a model warranty valid for one year.

Armature Resistance (rφ)
0.19 Ω
Brake Mass
0.39 kg
Continuous Stall Torque
0.11–0.64 N·m
Motor Mass (we)
0.96 kg
Operating Voltage
48 V DC
Peak Stall Armature Current
14.1 Arms
Rated Armature Current
6.0 Arms
Rated Output Power
80 W
Rated Speed
3000 rpm
Rated Torque
0.32–0.64 N·m
Rotor Inertia
0.219×10⁻⁴ kg·m²
Torque Constant (kt)
0.117 N·m/Arms
Voltage Constant (keφ)
4.07 mV/rpm

Frequently Asked Questions about R2AA08050FXPKF:

Q: What other types of encoders are available for R Sanmotion motors such as the R2AA08050FXPKF?

A: In general, there are four types of encoders for Sanyo Denki’s R sanmotion motors, such as the R2AA08050FXPKF. These are the absolute encoder for incremental systems, battery backup absolute encoder, battery-less absolute encoder, and wire-saving incremental encoder.

Q: What is the difference between an absolute and incremental encoder?

A: The R2AA08050FXPKF contains an absolute encoder with a battery backup. The absolute encoder differs from an incremental encoder based on how it determines shaft position. Absolute encoders can determine the exact position of the rotor, whereas an incremental encoder indirectly determines the shaft position based on the number of pulses or positional changes made by the rotor with respect to some reference.

Q: Does the R2AA08050FXPKF come with a blocking brake?

A: No, the R2AA08050FXPKF does not come with a default or standard blocking brake.

Q: What is the flange dimension of the R2AA08050FXPKF?

A: The R2AA08050FXPKF has a flange dimension of 80 millimeters.

Q: What transmission system does the R2AA08050FXPKF’s encoder use?

A: The R2AA08050FXPKF encoder uses a half-duplex asynchronous transmission system that can transmit data at a standard rate of 2.5 Mbps.


Internal Product Review

  • ‘‘The R2AA08050FXPKF is one of Sanyo Denki’s most accurate servomotors under the R Sanmotion series. With its compact build and absolute encoder, this motor has impressive operating characteristics and features.’’

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