T730-042E59 Sanyo Denki
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The Sanyo Denki T730-042E59 servo motor is part of the T SANMOTION Servo Motors series and features a rated output of 300 Watts with a rated speed of 2500 revolutions per minute. It has an armature resistance of 1.1 Ohms, operates at a rated voltage of 75 Volts, and offers IP43 protection. The motor is equipped with a line driver encoder type PP031T that provides 2500 pulses per revolution.
Internal Product Review
T730-042E59 is a Sanyo Denki T SANMOTION servo motor with 300 W rated output and 2500 min-1 rated speed. Permanent-magnet excitation and IP43 protection give the unit precise servo character and dependable service value.
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Product Description:
The T730-042E59 is a compact servo motor produced by Sanyo Denki for the T SANMOTION Servo Motors series. As a permanent-magnet AC unit, it converts drive current into repeatable rotary motion for positioning tables, pick-and-place heads, and other closed-loop axes in automated machinery. Its electromagnetic circuit is optimized for quick current rise, allowing precise torque regulation under real-time commands issued by a matching SANMOTION amplifier.
The motor delivers a continuous mechanical output of 300 W while sustaining a shaft speed of 2500 rpm under rated electrical conditions. These conditions include a terminal voltage of 75 V and a phase current of 5.2 A, establishing the operating point used for thermal sizing of the drive electronics. Each ampere produces 0.273 N·m of torque because the torque constant is 0.273 N·m/A, a value that results from the motor’s magnetic flux and winding geometry. The armature resistance is 1.1 Ω, so resistive losses remain modest at the rated load. An electrical time constant of 1.5 ms describes the current’s exponential rise after voltage is applied, supporting rapid control loops. Continuous rotation generates an induced voltage proportional to speed, and the back-EMF constant is 28.6 V per 1,000 rpm.
Rotor position is reported by an incremental encoder that supplies 2500 P/R through a line-driver output compatible with differential receivers. The sensing element is type PP031T, and its housing is connected directly to the motor frame for thermal stability. Stator excitation relies solely on the embedded permanent magnets, eliminating the need for external field power. Mechanical installation is supported by a 76 mm outside diameter and a preinstalled cable with a length of 1000 mm, reducing junction points in moving-axis cable runs. The enclosure carries an IP43 rating, providing protection against solid objects larger than 1 mm and against water sprayed at angles of up to 60 degrees from vertical. The aluminum housing also permits convective heat transfer during normal operation.
