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Power supplies psu48

Power supplies psu48

Power supplies psu48

Product catalog summary
Introduction
This document details the specifications and usage of the PSU48/12-2 and PSU48/24-2 power supplies, which convert 12VDC or 24VDC to a regulated 48VDC output. These power supplies are suitable for motor controllers requiring 48VDC, such as the MAC motor series and QuickStep MIS23x series.

Specifications
  • Input Voltage: 11 - 15VDC (nominal 12V battery)
  • Output Voltage: 48VDC +/- 2%, adjustable via internal POT
  • Output Current: 3A continuous, 8.5A peak (approximately 400W)
  • Efficiency: 92 - 96%
  • Quiescent Current: 15 mA
  • Input Fuse: 30A automotive style

Procedures
  • Mounting: Use L-bracket holes and heat sink compound for better heat transfer.
  • Connections: Ensure all power sources are disconnected before connecting. Use a minimum of #12 AWG wire for connections.
  • Ground Connection: Connect battery input negative and controller black lead to load negative.
  • Load Connection: Connect white lead to Load + wire, using a slow blow fuse for protection.
  • Battery Connection: Connect red lead to battery or power source, ensuring environmental sealing if required.

Warnings and Recommendations
  • Installation and connections should be performed by qualified personnel only.
  • Ensure all power sources are disconnected during installation.
  • Use a capacitor (e.g., 4700µF/50V) across the 48V output to smooth voltage and prevent motor damage.
  • Units must be sufficiently heat sunk to dissipate heat and prevent damage.
  • Adjust output voltage by removing the lid and adjusting the internal POT.

Contact Information
JVL Industri Elektronik A/S, Blokken 42, DK-3460 Birkerød, Denmark. Tel: +45 4582 4440, Fax: +45 4582 5550, Email: [email protected], Website: www.jvl.dk
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Catalog excerpts

Power supplies psu48-1

Product Data This Power Supply can be used when instance a battery. It converts 12 supplied with 48VDC can be connected connected directly. It is possible to connect 12 VDC to a motor controller but the max. velocity will be limited to capabilities of the motor is decreased which matches the requirements of peak. Thereby a reliable and highly dynamic motor system is secured from only a 12VDC supply. If the supply voltage is 24VDC the converter capacitor, for instance 4700|jF/50 volt across the 48V if large peak currents have to be drawn for instance if a overshoot that can damage the motor connected by qualified personnel only. Ensure all power sources are disconnected when making any connections to this unit. Note: Units are modified to handle high power output for short periods of time. Fuse input and output appropriately. Also, units must be sufficiently heat sunk to dissipate heat. Failure to do so will result in This unit outputs a regulated 48V from Electrical Specifications (nominal battery) Lead acid assumed: 12 V nominal Output Current (Amps) 3 Note: limited by fusing characteristics Input Fuse: Automotive Style: 30 A Enclosure: None Transient Protection: depending on loading and state of Cable length: 0.35m. Free end.

 Open the catalog to page 1
Power supplies psu48-2

1) Determine location of the controller. 2) Use holes in L-bracket to mount unit. Heat sink compound is recommended for better transfer of connected by qualified personnel only. Ensure all power sources are disconnected when making any connections to this unit. Connect Ground Using wire of sufficient gauge (min. #12 AWG), connect the Battery input negative and the controller black lead together to the load negative. Input = Connect to Battery negative + load negative = Black. This is a common negative connection WARNING: To avoid flash or burn injuries, extreme care must be taken when making...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.