PSU-30-ACL Okuma
MPN: 1006-3103-1317010
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The Okuma PSU-30-ACL is a servo drive and DC power supply unit from the PSU Servo Power Supplies series. It has a current rating of 30 amps, input form of three-phase AC at 50/60 Hz, and provides an output power of 31.5 kW. The unit features a DC charge voltage of 24 V and a short-circuit rating of 50 kA RMS Sym.
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Product Description:
The PSU-30-ACL is a regulated power module produced by Okuma within the PSU Servo Power Supplies series. Intended for CNC and robotic installations, the unit functions as the central energy interface, translating three-phase mains into stable DC required by servo amplifiers and spindle inverters. By maintaining a consistent bus voltage, it supports coordinated motion across multiple axes and helps reduce voltage sag during rapid load changes. It is suited to systems where several amplifiers share one supply section and must respond to simultaneous acceleration commands. The integrated supply stage also simplifies cabinet layout by replacing separate transformers and rectifiers with one power module.
The supply draws an AC input from a utility feed that can vary between 50/60 Hz, and the internal rectifier and filter network are tuned for that frequency range. It accepts a three-phase source, which helps balance line currents in high-power installations. A three-phase front end also supports smoother power conversion than a single-phase source in this class of equipment. Under nominal conditions, the input stage can deliver up to 30 A, providing current capacity for rapid axis acceleration. On the secondary side, the DC link is precharged to 24 V before full conduction begins, which helps limit inrush current and reduce voltage spikes at startup. This controlled startup sequence supports stable distribution of power to the connected drive sections.
In continuous service, the converter furnishes a regulated DC output bus capable of supplying up to 31.5 kW to the machine axes. Its protection circuit carries a 50 kA RMS Sym short-circuit rating, permitting installation on high-capacity plant switchgear without additional current-limiting devices. The product is a Servo Drive / DC Power Supply Unit, and its thermal and electromagnetic performance suit high-bandwidth motion control systems. This arrangement is commonly used where servo amplifiers and spindle inverters depend on one shared DC bus for stable response during changing load demand.
Frequently Asked Questions about PSU-30-ACL:
Q: What is the current rating of the PSU-30-ACL power supply?
A: The PSU-30-ACL has a current rating of 30 A for reliable power delivery.
Q: What is the DC charge voltage provided by the PSU-30-ACL?
A: This power supply operates with a DC charge voltage of 24 V for its output section.
Q: What type of input phase does the PSU-30-ACL require?
A: The PSU-30-ACL accepts 3-phase AC input for efficient operation in industrial environments.
Q: How much output power can the PSU-30-ACL deliver?
A: This unit has an output power rating of 31.5 kW, suitable for demanding servo applications.
Q: What is the short-circuit rating of the PSU-30-ACL?
A: The short-circuit rating of the PSU-30-ACL is 50 kA RMS Sym.