This operating manual should be read through carefully before installing and
operating the TPCMQ48 and TPCMQ24 DC/DC converter systems.
Unipower’s 1U high DC/DC converter systems convert a 48VDC nominal
input to 12 and 13.6VDC at 1800 and 1950 watts, respectively, or to 24 and
27.2VDC at 2,100 watts; or a 24VDC nominal input to 48 or 54.4VDC at
3,000 watts. The converter system consists of three DC/DC converter modules
in a compatible 19-inch rack/shelf. See Figure 1. The input is a wide
range 40 to 60 or 20 to 30VDC, and the output has a -25 to +10% adjustment
range. In 2+1 redundant operation the output is 1,400 watts for the
TPCMQ48 or 2,000 watts for the TPCMQ24. In this case a converter module
can be hot-swapped without affecting the output. The output voltage can be
controlled by a remote analog input in the range 0 to +5V.
TPCMQ DC/DC CONVERTER SERIES
OPERATING MANUAL
OPERATING MANUAL
AND RACK/SHELF
Each TPCMQ48 converter module produces 12, 13.6, 24 or 27.2VDC at 700
watts, and each TPCMQ24 module produces 48 or 54.4VDC at 1,000 watts.
The modules, which are connected in parallel in the rack/shelf, have automatic
load sharing and ORing diodes so they can be added or replaced while the
system is operating. The modules are up to 89% effi cient and have up to 12.5
watts per cubic inch power density.
A 25-pin interface subminiature D connector on the back of the rack/shelf provides control and monitoring inputs and outputs. An inhibit input turns the entire
rack/shelf output off or on. Remote sensing connections provide precise regulation at the point of load. Other control signals are input power fail and output
power good logic signals, and analog voltage remote adjust inputs- all for each
individual converter module.
Front-panel green LEDs indicate input power good and output power good for
each converter module. The converter modules and rack/shelf are safety agency certifi ed and CE marked.
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TPCMQ DC/DC CONVERTER SERIES
OPERATING MANUAL
Figure 1. TPCMQ48/TPCMQ24 DC/DC Converter Module and Rack/Shelf.
INPUT POWER
GOOD LED
HANDLE
OUTPUT POWER
GOOD LED
Figure 2. Front Panel of TPCMQ48/TPCMQ24 DC/DC Converter Module.
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2.0 FEATURES
The following is a summary of the important features of the TPCMQ DC/DC converter
modules and rack/shelf:
Constant Output Voltage
Remote -25 to +10% Output Adjustment
Output Overload Protected
Six Different Models
-20
Low Profi le: 1U (1.72 inches or 44mm) High
19-Inch Compatible Rack/Shelf
19- or 23-Inch Rack Mounting
Shelf Capacity Up to 3 Converter Modules
Power Density Up to 12.5 Watts/Cubic Inch
Up to 89% Effi ciency
Wide Range DC Inputs
I2C Serial Data Bus Option
Remote Sensing
Active, Single-Wire Load Sharing
Integral Output ORing Diodes
Hot-Swappable Converter Modules
Redundant or Non-Redundant Operation
LED Operating Indicators
Control and Monitoring Interface Signals
0
C to +700C Operating Temperature
TPCMQ DC/DC CONVERTER SERIES
OPERATING MANUAL
3.0 PRODUCT LINE
3.1 DC/DC Converter Modules
MODEL
TPCMQ48-12/5440-60VDC12VDC54.2A150A
TPCMQ48-13/4840-60VDC13.6VDC47.8A143.4A
TPCMQ48-24/2940-60VDC24VDC29.2A87.6A
TPCMQ48-27/2640-60VDC27.2VDC25.7A77.1A
TPCMQ24-48/2040-60VDC48VDC20.8A62.4A
TPCMQ24-54/1840-60VDC54.4VDC18.4A55.2A
INPUT
VOLTAGE
* For 3 Modules in a rackshelf
3.2 System Rack/Shelves
MODELWIDTHHEIGHTNO. MODULES
TPCMQR1U3-4819” (483 mm)1.72” (43.7 mm)3
TPCMQR1U3-2419” (483 mm)1.72” (43.7 mm)3
NOTE: System shelf and hot-swap modules must be ordered separately.
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OUTPUT
VOLTAGE
MAX. OUTPUT
CURRENT
MAX. SYSTEM
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3.3 Options
CODEDESCRIPTION
ZI
NOTE: Add Option Code as suffi x to model no. on both modules and rack/shelf.
Contact factory on availability of Option Z.
4.0 SAFETY WARNINGS
3.1 These converter modules and shelf have hazardous external and
internal voltages. They should be handled, tested and installed only
by qualifi ed technical persons who are trained in the use of power
systems and are well aware of the hazards involved.
4.2 The input terminals are at hazardous voltage potentials. Do not touch this
area when power is applied.
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C Serial Data Bus
TPCMQ DC/DC CONVERTER SERIES
OPERATING MANUAL
4.3 When operating this converter system, the frame ground terminal must be
connected to safety ground to minimize electrical shock hazard.
4.4 The internal voltages are at hazardous potentials. The converter module
covers should not be removed. There are no user-serviceable components
in these units. Removing the covers of the modules will void the warranty.
5.0 WARRANTY
All products of UNIPOWER Telecom, a division of UNIPOWER Corporation, are warranted for two
(2) years from date of shipment against defects in material and workmanship. This warranty does
not extend to products which have been opened, altered or repaired by persons other than persons authorized by the manufacturer or to products which become defective due to acts of God,
negligence or the failure of customer to fully follow instructions with respect to installation, application or maintenance. This warranty is extended directly by the manufacturer to the buyer and
is the sole warranty applicable. EXCEPT FOR THE FOREGOING EXPRESS WARRANTY, THE
MANUFACTURER MAKES NO WARRANTY, EXPRESS OR IMPLIED, INCLUDING, BUT NOT
LIMITED TO, THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. As the sole and exclusive remedy under this warranty, the manufacturer, at its option,
may repair or replace the non-conforming product or issue credit, provided the manufacturer’s
inspection establishes the existence of a defect. To exercise this remedy, the buyer must contact
the manufacturer’s Customer Service Department to obtain a Return Material Authorization number and shipping instructions. Products returned without prior authorization will be returned
to buyer. All products returned for repair must be shipped freight prepaid to UNIPOWER. If the
buyer fails to fully comply with the foregoing, the buyer agrees that no other remedy (including,
but not limited to, incidental or consequential damages for lost profi ts, lost sales, injury to person
or property or any other incidental or consequential losses) shall be available to the buyer.
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6.0 UNPACKING AND INSPECTION
6.1 These TPCMQ Series DC/DC Converters were carefully tested, inspected
and packaged for shipment from our factory. Upon receipt of them they
should be carefully unpacked and inspected for any damage in shipment.
6.2 If there is evidence of damage, do not attempt to test the unit. The freight
carrier should be notifi ed immediately and a claim for the cost of the converter system should be fi led with the carrier for direct reimbursement. Be
sure to include the model and serial number of the damaged unit in all
correspondence with the freight carrier. Also save the shipping carton and
packing material as evidence of damage for the freight carrier’s inspection.
6.3UNIPOWER Corporation will cooperate fully in case of any shipping
damage investigation.
TPCMQ DC/DC CONVERTER SERIES
OPERATING MANUAL
6.4 Always save the packing materials for later use in shipping the unit. Never
ship the converter system without proper packing.
7.0 FRONT PANEL DESCRIPTION
The front panel of a TPCMQ converter module is shown in Figure 2. At the top
left is the Input Good LED (green) and at the top right is the Output Good LED
(green) Three 40mm fans cool the module.
8.0 DC/DC CONVERTER MODULE SPECIFICATIONS
Specifi cations for a Single Converter Module. Typical at 24 or 48VDC Input, Full Load and 25°C
Unless Otherwise Noted.
INPUT TPCMQ48 TPCMQ24
Voltage Range ...................................... 40-60VDC 20-30VDC
Inrush Current Limiting ............................. 20A Peak 100A Peak
Input Current, Full Load ............................... 16.6A@48VDC 46.8A@24VDC
EMI Filter, Conducted .................................. Standard Standard
Analog Voltage Adjust Input ..................... 0 to +5V 0 to +5V