PSR4/5A-220-0003 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen PSR4/5A-220-0003 is part of the PSR Servo Power Supplies series and is designed as a power supply with regeneration for BDS and ACS systems. It offers a voltage rating of 230 VAC with a bus nominal voltage of 325 VDC and a current rating of 20 Amps per phase. The unit supports external regeneration with 700 watts power and includes soft start features such as a charge time of 25 msec and a surge current of 150 Amps.
Internal Product Review
The PSR4/5A-220-0003 is a Kollmorgen power supply with regen for BDS and ACS systems built for 230 VAC operation. A 20 Amps/Phase current rating with 80 A RMS peak current for 50 msec supports confident servo power delivery during transient demand. External regen capability at 700 W adds valuable braking support for dynamic motion applications.
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Product Description:
The PSR4/5A-220-0003 belongs to the PSR Servo Power Supplies series manufactured by Kollmorgen. Designed as a regenerative power supply for BDS and ACS motion systems, it converts an industrial AC input into a regulated DC bus that feeds multiple servo amplifiers and returns excess kinetic energy to an external resistor network. Stable DC power and controlled regenerative braking support coordinated multi-axis machinery in automated assembly, packaging, and material-handling cells.
This supply accepts a mains voltage of 230 VAC. After soft-start charging, the internal capacitors produce a nominal bus voltage of 325 VDC, with a 380 VDC hysteresis threshold and a 390 VDC ceiling for overvoltage protection. The continuous output current is rated at 20 A per phase, while brief acceleration demands can draw 40 A RMS for 2 seconds or 80 A RMS for 50 milliseconds. A soft-start circuit completes the initial charge in 25 ms and limits the initial surge to 150 A. The control electronics use a separate 115 VAC supply, which isolates the logic circuits from DC bus disturbances. Standard mechanical options provide flexibility for cabinet mounting, and an internal fault relay rated for 1 A at 120 VAC or 2 A at 28 VDC can signal a connected drive or PLC circuit.
The unit provides 0.00297 F of energy storage, giving the DC bus enough reserve to withstand brief mains dips without triggering undervoltage faults. Regenerative energy is handled externally; when the bus voltage rises, up to 700 W can be dissipated through a 5.8 Ω resistor enabled for the applicable input configuration. Internal heat dissipation reaches 150 W, so the cabinet must provide sufficient panel airflow to keep the power semiconductors within their operating temperature limits.
