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DC Power Plant
Product Manual
MX28B600
December 2002 APC DCNS Inc.
11035 Switzer Avenue
Part# 990-0564 Dallas, TX 75238
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REVISION HISTORY Revision Date By Description 07/10/01 JNF Initial release. 10/30/02 BET Changed breaker numbering
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TABLE OF CONTENTS 1. GENERAL INFORMATION................................................................................................1 1.1 INTRODUCTION .............................................................................................................................................1 1.2 PRECAUTIONS................................................................................................................................................1 1.3 INSPECTION UPON RECEIPT OF GOODS
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MX28B600 5.7.2 Installation of Circuit Breakers and Fuses................................................................................18 5.7.2.1 Plug-in Circuit Breakers.................................................................................................................. 18 5.7.2.2 Optional GMT Fuses ........................................................................................................................ 18 5.7.3 Load Connections................................
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MX28B600 1. GENERAL INFORMATION 1.1 Introduction DC Power Plants from APC DC Network Solutions Inc. (hereafter in this document “APC”) have unique features that make them easy to install, maintain, and upgrade. The rectifier units are modular and truly “hot-pluggable” into the shelf assembly without any separate AC wiring. All system settings are made from the system control unit that provides monitoring and control functions for each component of the system as well as alarm listings fo
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MX28B600 1) Make a descriptive notation on the delivery receipt before signing. 2) File a damage or shortage report with the carrier that delivered the shipment. 1.3.3 Concealed Damage It is the customer’s responsibility to unpack the power system and equipment received from APC and check for concealed damage, within 15 days of receipt of any and all materials. The customer is responsible to check the materials received against the detailed packing list to verify that the quantity and c
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MX28B600 2. CUSTOMER SERVICE AND SUPPORT APC manufactures standby power plants and systems, and provides customers with complete product and systems support and service. APC has an international network of factory trained service technicians. The service organization is on call 24 hours a day, 365 days a year. If there is a problem with the power system, contact APC DCNS at 1-800-800-4APC When you contact APC you should refer to your supplier as DC Network Solutions. Units returne
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MX28B600 3. WARRANTY PROVISIONS 3.1 General Provisions APC DC Network Solutions Inc. warrants the power equipment and components it manufactures or sells against defective materials and workmanship for a period of TWO (2) YEARS from the date of shipment. 3.1.1 Warranty Returns If initial physical inspection results in identification of a material or workmanship flaw(s) that could impair product performance, as defined by APC’s electrical and physical specification in effect at the time
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MX28B600 5. APC shall not be liable to the user (purchaser), or any third party, for indirect, incidental, or consequential damages such as, but not limited to, loss of use, loss of profits, costs associated with removal/installation of a defective product(s) or component(s) arising out of the sale or relating to the use of this product; and the user (purchaser) assumes all responsibility for all personal injury and property damage resulting from the handling, possession, or use of the pr
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MX28B600 4. PRODUCT OVERVIEW AND TECHNICAL DESCRIPTION 4.1 Description The MX28B600 is a modular stand-alone -48V DC power plant with a microprocessor-based control unit. It is configurable in such a manner that it will support most typical applications within the specified current range of 600 amperes without special application engineering or assistance. Distribution of two tiers is included for up to 44 plug-in circuit breakers, located in a 24-position panel (breakers labeled 1 to 2
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MX28B600-48V Figure 4.1-2. MX28B600 BLOCK DIAGRAM 7
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MX28B600-48V 4.2 Power Output Capacity 600 amps maximum, or 550 amps with N+1 redundancy. The housing provides space for three rectifier shelves that can hold up to four rectifiers each, a control unit, and two tiers of up to 43 distribution circuit breakers. 4.3 Rectifiers The rectifiers are APC DC Network Solutions, Inc. Model MRF28H54BV with specifications as follows: • Input Voltage: 176-264V AC (230V AC nominal) @ 45-66 Hz • Input Current per Rectifier: 13.9 Amps @ 230V AC • A
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MX28B600-48V 4.5 AC Input Power Each rectifier requires 208/220/240V AC, single-phase, 50/60 Hz, supplied through an external 20-amp two-pole breaker. There are three entry points (one for each rectifier shelf), for customer-supplied one-inch conduit. Section 5.2 for details on electrical connection. 4.6 Battery connections Battery connections are made by feeding the cables thru the bottom-rear of the unit. Use caution when running the cables to not damage other components. (Figure 4.6-1
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MX28B600-48V 4.7 DC Distribution Two plug-in circuit breaker tiers, consisting of a 24-position panel and two 10-position panels, provide 43 positions of -48V distribution. One position is reserved for the Manual Battery Disconnect Switch. The breaker tiers are center fed via bus bars to the -48V DC bus with each side having an ampacity of 300A. Connections for -48V DC loads, requiring standard #10-32 two-hole lugs on 5/8-inch centers, are located directly above the corresponding brea
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MX28B600-48V 4.10 Mechanical • Dimensions: 42" high x 23" wide x 20"deep (1066x584x508mm) • Weight: Housing - 190 lbs. (86kg) Rectifier - 11 lbs each. (5kg) • Color: Dawn Gray (fronts) NOTE: Descriptions & sizes are for the power system alone; when installed with inverters, batteries, etc., dimensions & weight will be affected. 4.11 Compliance • UL 1950 • NEBS – level 3 • FCC Part 15, Class A 11
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MX28B600-48V 5. INSTALLATION PROCEDURES 5.1 Preparation 5.1.1 Recommended Tools • Standard selection of insulated hand tools. • Proper tools for crimping the selected cable lugs. 5.1.2 Recommended Test Equipment • Digital Multimeter 5.1.3 Equipment Inspection Remove equipment from packing material and inspect for shipping damage to verify the safety and operational suitability for the installation site. [Refer to Section 1.3] 5.1.4 Safety Precautions ***** WARNING ***** The MX2
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MX28B600-48V Prior to installation, drawings, floor loading requirements, external alarm points, AC service entrance, and grounding schemes should all be checked and confirmed. If batteries are to be mounted in a room separate from the power plant, careful attention should be paid to battery cable voltage drop effects. Environmental operating temperatures and ventilation/cooling considerations should also be noted, not just for the power system but for all other equipment that may reside
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MX28B600-48V 5.3.1 Cable Sizing Considerations The battery cable(s) should be sized sufficiently large to limit the voltage drop from the MX28B600 DC power plant to the battery during charging in accordance with system design requirements. The cable(s) must also carry the full load current during battery operation. If assistance is required to determine the necessary cables for the application, contact your sales representative or APC DC Network Solutions Inc. 5.3.2 Connecting the Cable
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MX28B600-48V Figure 5.6 Interface Board 5.6.1 External Alarm Inputs Four external alarm inputs with assignable priority levels are available. These alarm inputs respond to external dry contact closures between normally open (NO) and common (C) or contact openings between normally closed (NC) and C (see Table 5.6-1). External Alarm Source Connect To Input (non-alarm state) Alarm Terminals OPEN NO-C CLOSED NC-C Table 5.6-1. External Alarm Input Definition Table 5.6-2 shows the
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MX28B600-48V 5.6.2 Alarm Outputs There are eight alarms available that provide outputs via Form “C” relay contacts. The last two of these are pre-assigned as the Minor and Major alarm outputs. The Major relay is energized (NO-C contacts closed) during normal (non-alarm) operating conditions; all the other relays energize when an alarm condition occurs. The other six outputs are initially designated as “Relay 1” through “Relay 6” (the user may assign more meaningful names if desired). T
