PBM604DCA20 Sanyo Denki
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The Sanyo Denki PBM604DCA20 is a servo motor in the PB SANMOTION Servo Motors series with a 60 mm square flange and a mass of 1.76 kilograms. The motor delivers a maximum stall torque of 1.9 Newton-meters and features a no excitation actuating type brake that operates on 24 VDC. It supports an allowable radial load of 167 Newtons and offers a brake engage time of 20 milliseconds.
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Product Description:
The PBM604DCA20 is a brushless AC servo motor produced by Sanyo Denki for the PB SANMOTION Servo Motors series. Intended for industrial automation, the unit pairs with a matching amplifier to provide precise speed and position control on packaging lines, semiconductor tools, and general assembly stations. By delivering commanded torque directly to the load, the motor simplifies mechanical design and supports closed-loop regulation where repeatability, fast response, and a compact mechanical envelope are required.
The motor provides a maximum stall torque of 1.9 N·m, offering reserve capacity to maintain position under a static load. When energized but stationary, its static friction torque is 0.78 N·m, indicating the threshold at which motion begins. The square mounting interface measures 60 mm on each side, allowing the motor to fit compact gearboxes or linear stages directly. The body has an overall depth of 145.6 mm, which reduces the required installation space while accommodating the internal motor stack. Despite its iron core, the motor has a total mass of 1.76 kg, limiting the load imposed on lightly built axes. The rotor has a moment of inertia of 0.84 × 10⁻⁴ kg·m², allowing acceleration profiles to be tuned for quick indexing without overloading the drive.
The shaft supports an allowable radial force of 167 N and a thrust force of 14.7 N, making it suitable for midsize pulleys, belt drives, or lead screws mounted close to the bearing face. For vertical or suspended axes, the built-in brake engages without electrical excitation when power is removed. The brake coil operates from 24 VDC ±5% and draws 0.25 A while energized, allowing the mechanism to release the shaft during operation. The brake develops sufficient clamping torque to resist back-driving when the axis is stationary. Engagement occurs within 20 ms, reducing the delay before the shaft is secured after power is removed. Release is completed within 30 ms, keeping the transition from the clamped state to active motion brief.
Frequently Asked Questions about PBM604DCA20:
Q: What is the allowable radial load for the PBM604DCA20 servo motor?
A: The PBM604DCA20 can support a maximum radial load of 167 N during operation.
Q: What is the maximum stall torque of the PBM604DCA20?
A: This model has a maximum stall torque of 1.9 N·m, allowing for high torque demands at low speeds.
Q: How much current does the brake consume on the PBM604DCA20?
A: The integrated brake consumes 0.25 A when engaged on the PBM604DCA20.
Q: What is the required supply voltage for the brake on the PBM604DCA20?
A: The PBM604DCA20 requires a 24 VDC ±5% power supply for its brake system.
Q: What flange size does the PBM604DCA20 servo motor use?
A: The flange size of this servo motor is 60 mm square, suitable for compact automation setups.
