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VoxPower VCCM600S User Manual

Vccm600 series vccm600 series ac/dc conduction cooled configurable power supplies
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VCCM600 Series
AC/DC conduction cooled configurable power supplies
User Manual
_____________________________________________________________________________________________________
Cool it your way.
Conduction | Convection | Forced Air
4"x7"x1.61"
600W
SILENT
SMALL
POWERFUL
FAN-LESS
The VCCM600 series user manual has been prepared by our design team to assist qualified engineers in correctly
designing in the VCCM600 product into their application 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.

VCCM600 Series Overview

The VCCM600 series of conduction cooled configurable power platform delivers a silent 600 Watts and up to 750 Watts of peak power for 5
seconds in a rugged 4" x 7" package and is the ultimate power solution for applications where reliability or audible noise are of concern. The
product combines the advantages of a modular power supply with the high reliability of a fan-less architecture. Depending on your application,
the VCCM600 can be configured as a conduction, convection or forced air cooled solution and this versatility allows the unit to be seamlessly
integrated across a vast range of applications, which makes it perfect for standardising your power platform.
Designed with highest reliability and versatility in mind, the VCCM600 is suitable for applications ranging from the most controlled environments
to the harshest conditions. Each configured modular solution can accommodate up to 4 isolated DC output modules which utilize 100% SMT
components for increased reliability. Standard features include full output voltage adjust range, externally controllable voltage and current and
series & paralleling of outputs. The unique design approach and heat dissipation techniques allows the unit to be mounted in virtually any
orientation giving system designers even more flexibility. The series is approved to latest safety and EMC standards and features market leading
specifications and design in application support.
DOC-MN-007-03 VCCM600 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 VCCM600S

  • Page 1: Vccm600 Series Overview

    VCCM600 Series AC/DC conduction cooled configurable power supplies User Manual _____________________________________________________________________________________________________ Cool it your way. Conduction | Convection | Forced Air 4”x7”x1.61” 600W SILENT SMALL POWERFUL FAN-LESS The VCCM600 series user manual has been prepared by our design team to assist qualified engineers in correctly designing in the VCCM600 product into their application to achieve the best reliability and performance possible.

  • Page 2: Table Of Contents

    P a g e Contents VCCM600 Series Overview Part Numbers and Ordering Information Important installation information Theory of Operation Input Module Operation Input Module Protections Efficiency Performance Power Ratings System Cooling Signalling Output Module Operation (A, B, C & D) Advanced Output Module Features Series Connected Outputs Parallel Connected Outputs...

  • Page 3: Part Numbers And Ordering Information

    P a g e Part Numbers and Ordering Information INPUT MODULES Input Module Details VCCM600S 600 Watt Input Module with ITE Approvals (IEC60950 Edition 2) VCCM600M 600 Watt Input Module with Medical Approvals (IEC60601 Edition 3 + IEC60601-1-2 Edition 4 EMC) OUTPUT MODULES...

  • Page 4: Important Installation Information

    SAFETY The VCCM600S and VCCM600M series are designed in accordance with the relevant safety requirements of UL60950-1, IEC/EN60950-1, UL60601-1, IEC/EN60601- 1, CSA22.2 no 601-1, Low voltage Directive LVD 2014/35/EU and EMC directive EMC 2014/30/EU.

  • Page 5: Theory Of Operation

    P a g e Theory of Operation The diagram below outlines the topology and major internal components of a fully assembled VCCM600 configurable power supply. Four output slots are output modules input provided and can be populated by any combination of .

  • Page 6: Input Module Operation

    P a g e Input Module Operation Startup & Shut Down The VCCM input module operates from a universal input voltage range and starts automatically upon application of adequate AC mains voltage (>84Vrms). After a short delay, the global 5V bias supply starts and the ACOK signal goes high to indicate that the mains voltage is present and input stage is operating correctly. Once the ACOK signal is high, the output modules turn on and deliver power to the application loads.

  • Page 7: Input Module Protections

    P a g e Hold-up For short line distubances (<20ms), the output voltages will not be affected*. However, the ACOK signal may still go low to warn that there is an impending loss of output power. The ACOK signal will return to the high state once the unit has recovered from the disturbance. *Output modules that are adjusted above the hold-up voltage (as detailed in their respective datasheets), may experience a dip in voltage.

  • Page 8: Efficiency Performance

    P a g e Efficiency Performance The efficiency of the configured VCCM600 product is dependent on parameters such as input line voltage, load level and on the combination of output modules. The plots below show typical efficiencies of a VCCM600 product fitted with all modules A, B, C or D. The plots cover the full load and line voltage range. All modules are adjusted to nominal voltages and are equally loaded.

  • Page 9: Power Ratings

    P a g e Power Ratings VCCM600 series products must always be operated within stated operating limits. Equipment manufacturers and other users must take the appropriate de-rating into account when specifying a unit for the intended application. If in doubt, contact your sales representative or Vox Power for assistance. There are three main de-ratings for the VCCM600 series of configurable power supplies when used in a conduction cooled application, Ambient air temperature Ambient Temperature Derating...

  • Page 10: System Cooling

    10 | P a g e System Cooling The power ratings shown in the previous section are for conduction cooling, however the unit may be operated with forced air cooling, convection cooling or combinations of all three. To assist in specifying the product for these applications, the typical thermal performance has been characterised under controlled conditions.
  • Page 11 11 | P a g e FORCED AIR PERFORMANCE No Heatsink, Air Direction X or Y at 2MS /1.5MS /1MS /0.5MS OPA 120Vin, 4x5Vout OPA 220Vin, 4x5Vout 2MS-1 1.5MS-1 1MS-1 0.5MS-1 2MS-1 1.5MS-1 1MS-1 0.5MS-1 Ambient Temperature Ambient Temperature OPB/C/D 120Vin, 4x10/20/40Vout OPB/C/D 220Vin, 4x10/20/40Vout 2MS-1 1.5MS-1...
  • Page 12 12 | P a g e Specifying the VCCM600 product for convection or forced air cooling To specify a VCCM600 series product for an end application, the required output power, minimum input line voltage, maximum ambient, mounting orientation and air flow rate (if applicable) should be determined. Check the requirements against the closest characteristic plot from the tables above to ensure ratings can be achieved.

  • Page 13: Signalling

    13 | P a g e Signalling Global Signals 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 connector J3 on the transformer module as shown in the diagram below. J3 –...
  • Page 14 14 | P a g e 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 pre-set voltage for that module. Each PG signal on an output module is internally connected through an opto-isolator to the signals circuit, which provides and open collector output, as shown.

  • Page 15: Output Module Operation (A, B, C & D)

    15 | P a g e Output Module Operation (A, B, C & D) 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 modules.
  • Page 16 16 | P a g e 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 17 17 | P a g e 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 sources of noise pickup. Over Temperature Protection (OTP) Each output module is protected against excessive temperatures.

  • Page 18: Advanced Output Module Features

    18 | P a g e Advanced Output Module Features 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 V pins on the signals connector J4 CONTROL as shown below.
  • Page 19 19 | P a g e 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 I pins on the signals connector CONTROL as shown below. In practice this also means that the output can be used as a modulated or constant current source. Equivalent internal circuit Control function In the diagram above, Vi_out is an internal voltage source that is proportional to the internal inductor current and approximates the equation,...
  • Page 20 20 | P a g e Output Current Measurement The output current of the module can be measured using the I signal. If this pin is not loaded its output voltage will follow the typical equation, CONTROL = 4*I , where I is the maximum rated current for the module.
  • Page 21 21 | P a g e Remote Sensing Remote sensing is available on all output modules and can be used to compensate for a voltage drop in the power leads connecting the power supply to the load. To implement remote sensing connect the positive sense pin (S+, connector J4.2) to the positive side of the remote load and the negative sense pin (S-, connector J4.1) to the negative side of the remote load.

  • Page 22: Series Connected Outputs

    22 | P a g e Series Connected Outputs VCCM output modules of the same type can be series connected to achieve higher output voltages. Links for series connecting modules are available directly from Vox Power or our local representatives. The following instructions must be followed for output modules configured in this manner.

  • Page 23: Parallel Connected Outputs

    23 | P a g e Parallel Connected Outputs VCCM output modules of the same type can be paralleled within the same product to achieve higher output currents. Links for paralleling modules are available directly from Vox Power or our local representatives. The following instructions must be followed for output modules configured in this manner.
  • Page 24 24 | P a g e WARNING! Care must be taken to avoid differential voltages between the negative power output terminals of share mode paralleled modules as this can cause errors at the control pins. To avoid this, it is recommended to use Vox Power parallel links to parallel modules in share mode. Parallel Remote Sensing Remote sensing can be used as normal with paralleled modules.
  • Page 25 25 | P a g e Paralleled Remote Voltage/Current Adjustments The simplest way to achieve remote voltage/current programming with paralleled outputs is to operate the modules in share parallel mode. Follow the procedure outlined earlier to configure the outputs in share parallel mode and once configured in this mode, all the V and COM pins can be connected CONTROL together.

  • Page 26: Mechanical Dimensions And Mounting

    26 | P a g e Mechanical Dimensions and Mounting SCREWS Location Details Penetration Tightening Baseplate Mount: M1 – M6 Hole diameter = 5.00mm 4mm Baseplate thickness 0.55 NM Output Module Mount: O1 – O8 M3 CSK M3 CSK screw, 8mm max length 0.35NM Input module Mount: F1 –...

  • Page 27: Connector Details

    27 | P a g e Connector details PINOUTS Circuit Details J1 – Mains Input Live Neutral Earth J2 – Standby control Standby control negative Standby control positive J3 – Global Signals Slot 4 - Power Good Slot 4 - Inhibit Slot 3 - Power Good Slot 3 - Inhibit Slot 2 - Power Good...

  • Page 28: Safety

    The VCCM unit has been designed to comply with the Low Voltage Directive DIR 2014/35/EU (LVD), the EMC Directive DIR 2014/30/EU and DIR 2011/65/EU regarding the restriction of certain hazardous substances and is CE marked to show its compliance. When correctly installed (per the installation manual) in a limited access environment the VCCM600S & M comply with the requirements of EN60950 2 Edition and EN60601 3 Edition respectively.

  • Page 29: Emc Compliance

    29 | P a g e EMC Compliance To support compliance of the final system design with the EMC directive 2014/30/EU, the VCCM600 PSU has been designed and tested to the following ELECTROMAGNETIC COMPLIANCE – EMISSIONS Phenomenon Basic EMC Standard Test Details Radiated emissions, electric field EN55011/22...
  • Page 30 30 | P a g e Installation Guidelines for optimum EMC performance VCCM units should be mounted within a metal enclosure using the mounting fixtures provided.  If the application enclosure is not metal, then a metal ground plate should be used to mount both the power supply and the load. ...

  • Page 31: Reliability

    31 | P a g e Reliability The VCCM600 series has undergone extensive testing, including HALT and Environmental testing. Reliability data is collected on an ongoing basis. Please contact Vox Power or your distributor for the most up to date reliability data. The reliability data quoted in the datasheets are the calculated failures per million hours (FPMH) using the Telcordia SR-332, issue 2 standard.

  • Page 32: Configuring Your Vccm Product

    32 | P a g e Configuring Your VCCM Product The VCCM600 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 33 33 | P a g e Adding Output Modules (A, B, C & D) STEP 1: Each module is provided with two M3x8 Stainless Steel Posi-drive Countersunk screws at the bottom. These are used to attach the module to the baseplate. Remove these screws using the correct No1 Posi-drive screw driver.
  • Page 34 34 | P a g e Removing Output Modules (Type A, B, C & D) STEP 1: Turn the configured unit upside down and identify the slot of the module you need to remove. Remove the two screws using an appropriate No1 Posi-drive screwdriver.
  • Page 35 35 | P a g e Verifying operation after assembly Connect the Live (L), Neutral (N) and Earth (E) terminals of the mains power cable to the corresponding terminals on the mains input connector (J1) on the VCCM600 input module. Only apply power from the mains power outlet once the connection to the VCCM600 input module has been completed. Once power has been applied, confirm that the “Power Good”...
  • Page 36 36 | P a g e Connecting Output Modules in parallel VCCM output modules of the same type can be paralleled in any number within the same product to achieve higher output currents. For best performance, the output voltages of each paralleled module should be pre-adjusted to within 1% of the required output voltage. It is recommended to fit Vox current share links on all paralleled output modules.

  • Page 37: Accessories

    37 | P a g e Accessories Description Photo/Drawing Order code 2 WAY PARALLEL LINK 2 way – LINK-VP2 Output Parallel 3 way = LINK-VP3 Links 4 way = LINK-VP4 4 WAY SHARE CABLE 2 way = CAB-CS2 Current share 3 way = CAB-CS3 cables 4 way = CAB-CS4...
  • Page 38 38 | P a g e Heatsink1 (Provided with 6x M4 x 10mm Posi- ACC-HS1 Drive screws for baseplate mounting and thermal interface ACC-TF) Heatsink2 (Provided with 6x M4 x 10mm Posi- ACC-HS2 Drive screws for baseplate mounting and thermal interface ACC-TF) Thermal interface...

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