VoxPower NEVO+600 Series User Manual

Ac/dc modular configurable power supplies
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NEVO+600 Series
AC/DC MODULAR CONFIGURABLE POWER SUPPLIES
User Manual
_____________________________________________________________________________________________________
600 Watt
in the palm of your hand
5"x3"x1.61"
600W
600g
SMALL
POWERFUL
LIGHT
The NEVO+600 series user manual has been prepared by the Vox Power design team to assist qualified
engineers in correctly implementing the product and to achieve the best reliability and performance
possible.
All specifications are believed to be correct at time of publishing. Vox Power Ltd reserves the right to make changes to any of its products and to change or improve any part of
the specification, electrical or mechanical design or manufacturing process without notice. Vox Power Ltd does not assume any liability arising out of the use or application of
any of its products and of any information to the maximum extent permitted by law. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is
granted by this document or by any products of Vox Power Ltd. VOX POWER LTD DISCLAIMS ALL WARRANTIES AND REPRESENTATIONS OF ANY KIND WHETHER EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF SUITABILITY, FITNESS FOR PURPOSE, MERCHANTABILITY AND NONINFRINGEMENT.
Please consult your local distributor or Vox Power directly to ensure that you have the latest revision before using the product and refer to the latest relevant user manual for
further information relating to the use of the product.
Vox Power Ltd products are not intended for use in connection with life support systems, human implantations, nuclear
facilities or systems, aircraft, spacecraft, military or naval missile, ground support or control equipment used for the purpose of guidance navigation or direction of any aircraft,
spacecraft or military or naval missile or any other application where product failure could lead to loss of life or catastrophic property damage. The user will hold Vox Power Ltd
harmless from any loss, cost or damage resulting from its breach of these provisions.

NEVO600+ series overview

The NEVO+600 switch mode power supply series offers truly unrivalled power density, providing 600 W at 25 W/in
in a 5" x 3"x 1U package. It is the
3
ultimate power solution for system designers as they address the pressing demands for more power within less space. Providing multiple isolated outputs,
the series carry full UL60601 (NEVO+600M only) and UL60950 (NEVO+600S only) safety approvals.
The basic system consists of an input module together with up to four fully isolated output modules. Single output modules have advanced remote
voltage and current programming functionality as standard. While dual output modules allow for up to eight fully isolated outputs.
The input module delivers up to 600 W of output power and has 4 slots, each capable of separately delivering up to 150 W. A 5 V, 200 mA medically
isolated bias supply together with an AC_OK signal and a global inhibit signal that can disable all outputs simultaneously, comes as standard on all
models.
Output modules are available in a range of output voltages to suit all applications.
Single output modules with voltage ranges from 1.5V to 60V, currents up to 25A and paralleling and series capability can result in a voltage range up to
240V and a maximum current of up to 100 Amps from a single Nevo+600 configuration.
Dual output modules have a voltage ranges from 1.5V to 15V and currents up to 5A with series capability.
By selecting the correct output modules, a custom power solution can be configured in a few minutes. This instantly available custom solution offers
industry leading power density, total system efficiencies of up to 89% and suits all types of applications including industrial, medical, aerospace, military
and telecoms.
Page 1 of 31
DOC-MN-005-03, NEVO+600 User Manual
Vox Power Limited | Unit 2, Red Cow Interchange Estate, Ballymount, Dublin 22, D22 Y8H2, Ireland | T +353 1 4591161 | www.vox-power.com

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Summary of Contents for VoxPower NEVO+600 Series

  • Page 1: Nevo600+ Series Overview

    SMALL POWERFUL LIGHT The NEVO+600 series user manual has been prepared by the Vox Power design team to assist qualified engineers in correctly implementing the product and to achieve the best reliability and performance possible. All specifications are believed to be correct at time of publishing. Vox Power Ltd reserves the right to make changes to any of its products and to change or improve any part of the specification, electrical or mechanical design or manufacturing process without notice.
  • Page 2: Table Of Contents

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Contents NEVO600+ series overview ..................1 Part numbers and ordering information ................. 3 Installation Notes ....................4 Theory of operation ....................5 Input module operation ................... 5 Signalling ......................9 Single Output module operation ................11 Advanced Single Output module features ..............
  • Page 3: Part Numbers And Ordering Information

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Part numbers and ordering information INPUT MODULES Model Details NEVO+600S 600 Watt input stage with standard leakage current. NEVO+600M 600 Watt input stage with medical leakage current and isolation requirements. OUTPUT MODULES...
  • Page 4: Installation Notes

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Installation Notes This power supply is intended for use within equipment or enclosures which restricts access to authorised personnel only. The instructions in this manual and all warning labels on the product must be followed carefully.
  • Page 5: Theory Of Operation

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Theory of operation The diagram below outlines the topology and major internal components of a fully assembled system. Four output slots are provided and can be populated by any combination of output modules. The remaining components in the block diagram are housed in the input module.
  • Page 6 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual      Typical timing values: t 300 ms, t 50 ms, t 25 ms, t 15 ms, t = 5 ms (minimum), t 100 ms When the AC mains voltage is removed, the internal hold-up capacitors will supply power to the load for typically 20 ms (t ) at maximum power.
  • Page 7 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Power derating NEVO+600 units must always be operated within its stated operating limits. Equipment manufacturers and other users must take appropriate deratings into account at all times when specifying a unit for the intended application. If in doubt contact your sales representative or Vox Power for assistance.
  • Page 8 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Efficiency The efficiency of the overall unit is dependent on several parameters such as input voltage, load level and on the combination of output modules. The plots below show typical efficiencies of a NEVO+600 over the full load and line voltage range and fitted with four of each type of output module, equally loaded.
  • Page 9: Signalling

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Signalling To reduce cabling in the end system, all major input and output signals and the global 5V bias supply are wired to a single signals circuit that is accessed through the connector (J2) located at the output side of the chassis as shown in the diagram below.
  • Page 10 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Power Good signals (PG1-PG4 [Output]) Each output module provides a power good (PG) signal to indicate when the output voltage is above approximately 90% of the preset voltage for that module. Each PG signal on an output module is internally connected through an opto-isolator to the signals circuit, which buffers the signal through a PNP transistor with a 10k pull down resistor, as shown.
  • Page 11: Single Output Module Operation

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Single Output module operation Parameter Power profile The power profile diagram below is a voltage/current plot that together with the associated table provides details of the main features of the currently available output 3.75...
  • Page 12 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Reverse Current Protection (RCP) The standard output modules use synchronous rectification in the output stages to achieve high efficiency and as a result the outputs can both source and sink current. The sink current is internally limited to approximately -6% of the maximum rated current. However, in applications where the output modules are connected to external power sources such as batteries or other power supplies certain precautions must be observed to prevent damage to the unit.
  • Page 13: Advanced Single Output Module Features

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Ripple and Noise The ripple and noise figures stated in the datasheet are defined based on a standard measuring method. To obtain the same results the same test setup must be used and care must be taken to eliminate any parasitic noise pickup. The diagram below shows details of the setup and also sources of noise pickup.
  • Page 14 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Remote voltage programming (External voltage control) The output voltage of the module can be adjusted using an external voltage source connected between the COM and Vcontrol pins on the signals connector J5 as shown below.
  • Page 15 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Remote current programming (External voltage control) The output current limit of the module can be reduced using an external voltage source connected between the COM and Icontrol pins on the signals connector as shown below.
  • Page 16 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual use an amplifier to measure the output current. An example circuit is shown above right. In this case V will control the current limit while the amplified ctrl signal will provide a measurement of the output current.
  • Page 17: Series Connected Outputs

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Series Connected outputs NEVO output modules of the same type can be seriesed in any number to achieve higher output voltages, even across multiple chassis! The following instructions must be followed for output modules configured in this manner.
  • Page 18: Paralleled Outputs

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Paralleled outputs NEVO single type output modules of the same type can be paralleled in any number within the same chassis to achieve higher output currents. When paralleled, the outputs can operate in two distinct modes, Normal parallel mode or Share parallel mode.
  • Page 19 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Share parallel mode In Share parallel mode, the outputs are paralleled as before and the Icontrol pin for each module is connected together as shown in the diagram below. Connecting the Icontrol pins together forces all the outputs to deliver the same current, ensuring that the system reliability is maximised and the work load is distributed evenly across all paralleled modules.
  • Page 20 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Parallel remote sensing Remote sensing can be used as normal with paralleled modules. The sense lines (S+ and S-) from each of the output modules should be connected together, S+ to S+, and S- to S- as shown below. This should be done close to the power supply output and a single pair of cables brought from these sense lines to the load.
  • Page 21 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Paralleled remote voltage/current adjust Remote voltage programming with paralleled outputs can be achieved by simply joining all V and COM pins together and applying the external CONTROL control voltage between COM and V...
  • Page 22: Dual Output Module Operation

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Dual Output module operation Power profile The power profile diagram below is a voltage/current plot that together with the associated table provides details of the main features of the currently available dual output modules.
  • Page 23 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Start up & Shut down All outputs are designed to have a regulated monotonic start-up with a controlled rise time which is specified in the datasheet. The power good signal stays low until the voltage for both outputs is with the power good threshold range (≈95% ).
  • Page 24 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual In systems where remote sensing is not used, the output voltage at the power terminals will be slightly higher than that at the sense terminals. This voltage difference is termed, open sense offset and occurs due to internal bias currents in the sensing circuit. Factory set units are set with the sense cables connected unless otherwise specified.
  • Page 25: Audible Noise

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Audible noise The following series of plots characterise the audible noise from the NEVO+600 power supply over various conditions. These plots can be used to estimate the actual audible noise for any application.
  • Page 26: Mechanical Dimensions And Mounting

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Mechanical dimensions and mounting MECHANICAL DIMENSIONS AND MOUNTING SCREWS SCREWS LOCATION DETAILS PENETRATION TIGHTENING MOUNTING M4 x 4 4mm max, including chassis 0.55 NM OUTPUT MODULES M3 x 5, Countersink Posi, 8 Places Defined by screw 0.50 NM...
  • Page 27: Connectors

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Connectors PINOUTS Circuit Details Live Earth Neutral Circuit Details Power Good Slot A Inhibit Power Good Slot B Inhibit Power Good Slot C Inhibit Power Good Slot D Inhibit Global Inhibit...
  • Page 28: Configuring Your Power Supply

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Configuring your power supply The NEVO+600 power supply is designed to be used as part of an end-system in a restricted environment and therefore should only be accessible to qualified and trained personnel. Persons attempting to configure a unit must have the necessary knowledge and training before doing so. Incorrect configuration may cause damage to the power supply and may affect the warranty of the power supply.
  • Page 29 NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual STEP3: Once the lid is removed modules can be removed and replaced as required. The 15 pin header on the output module plugs directly into the connector on the printed circuit board. Each connector is keyed to prevent improper insertion. Insert the output module and ensure it is pushed down properly. Do not remove the plastic cover on the front-end of the unit.
  • Page 30: Safety

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual Safety The NEVO unit has been designed to comply with the Low Voltage Directive 2014/35/EU (LVD) and is CE marked to show its compliance. When correctly installed (according to the installation manual) in a limited access environment the NEVO+600S complies with the requirements of UL60950-1, EN60950-1, IEC60950-1, CSA22.2 no.
  • Page 31: Emc Compliance

    NEVO+600 Series AC/DC MODULAR CONFIGURABLE POWER SUPPLIES User Manual EMC compliance To support compliance of the final system design with the EMC directive 89/336/EEC, the NEVO PSU has been designed and tested to the following standards. Parameter Standard Level Emissions...

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Nevo+600sNevo+600m

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