SEI 1800/48-2U-P-ACC Installation And Operation Manual Download Page 13

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STORAGE

The DC-UPS batteries may be stored at temperatures of 25



C or below for up to six months.

The DC-UPS must be powered up with the battery packs installed for at least 48 hours every
six months to maintain the batteries. For storage temperatures between 26



C and 40



C, the

un-powered storage time must not exceed three months. For storage temperatures above
40



C, the un-powered storage time must not exceed one month. Failure to maintain the

batteries will result in decreased battery capacity, decreased battery life and battery failure.

Summary of Contents for 1800/48-2U-P-ACC

Page 1: ...llation and Operations Manual SEI 1800 48 2U P ACC DC UPS SEI Incorporated 5115 Pegasus Court Suite Q Frederick Md 21704 Phone 301 694 9601 Fax 301 694 9608 Email Info seipower com Web http www seipower com ...

Page 2: ...Contents 1 Description 2 Technical Specifications 3 Environmental Specifications 3 Safety Information 4 Installation Instructions 5 Startup and Checkout 7 Theory of Operation 8 LED indicators 9 Alarm Contact Closures 11 Storage 12 ...

Page 3: ...tact Closures are accessed via an RJ 45 jack on the left side of the rear of the unit The SEI DC UPS can be mounted on a 19 inch rack and occupies 2U 3 5 inches of rack space The SEI 1800 48 2U P ACC comes equipped with two field replaceable non spillable sealed lead acid battery packs Both battery packs must be installed to provide back up power Circuitry within the DC UPS monitors and periodical...

Page 4: ...l 25 5 Amps Max DC Output Power Voltage 42 0 54 8 Vdc Power 1800W max Current 40 0 Amps max Fuse Rating 40 amps Internal Battery Capacity Range 9 Ahr Fuse Rating 50 amps Mechanical Dimensions Width 19 00 Inches Depth 22 00 Inches Height 3 50 Inches Weight 45 lbs ENVIRONMENTAL SPECIFICATIONS Temperature Operating 0 C to 50 C Storage 20 C to 50 C Humidity 0 95 non condensing Thermal Load SEI 1800 82...

Page 5: ...ect commercial power and remove the battery fuse before working on the unit Always replace the batteries with batteries of the same type and style DO NOT work on this equipment during an electrical storm DO NOT work in locations where there is condensing moisture or standing water Service to the DC UPS should be performed by a qualified technician ...

Page 6: ...ipping container for damage If damaged request that the carrier inspect the shipment Unpack the inner container from the shipping container and remove the unit from the packaging Inspect the unit for visible damage If a claim for damages is to be made it should be filed promptly with the transportation company In addition notify SEI within two days of delivery SEI will advise the customer of any f...

Page 7: ...mum of 3 inches of space be allowed on both sides of the unit The unit should be installed in a clean dry area where the ambient temperature does not exceed 50 C 4 Battery Pack Installation a Open Front Panel Loosen the two thumbscrews on the front of the DC UPS Fold down the front panel b Install Battery Packs Slide each of the two battery packs into the DC UPS Chassis The battery packs should be...

Page 8: ...panel LEDs will go through a start up sequence of red green and flashing yellow The DC UPS fans will also start up 4 After the start up sequence the Port 1 LED will turn on green Verify that the connected customer equipment is receiving power 5 The Battery Charge Status LED will flash green This indicates that the Battery Pack is charging 6 Disconnect the AC power cord Verify that the Battery Char...

Page 9: ...ED and the System Status LED are flashing red 4 Press and hold the Manual Battery Test Switch for 5 seconds The Battery Test Status LED will quick flash red 5 All front panel LEDS will turn off the unit fans will stop and the connected equipment will power down THEORY OF OPERATION Theory of Operation The following will provide you with an outline of operations and a list of modules found in the DC...

Page 10: ...e battery when the battery voltage drops below a 21 0 Vdc This is done to prevent deep discharge of the batteries which can adversely affect battery life Both internal and external batteries are disconnected LED Indicators There are three sections of LED indicators on the front panel of the unit Output System Status and Battery Status The functions of these indicators are as follows Output Section...

Page 11: ...LD percentage Flashing Red Total Output power exceeded available power In units with multiple output ports the lowest priority ports will be SHUTDOWN until the OVERLOAD is removed Rectifier Status Solid Green Operating Normally Flashing Red One of the Rectifiers has failed Battery Status Section LED LED state Indication Battery Charge Status Solid Green Battery fully charged Flashing Green Battery...

Page 12: ... On AC Power Battery Test Pass NO NO On AC Power Battery Test Fail NC NC On Battery Power Battery Voltage 44 0Vdc Or DC UPS shutdown NC NO On Battery Power Battery Voltage 44 0Vdc The alarm contacts are accessible via an RJ45 connector on the rear panel of the DC UPS The Alarm Contact connector pinouts are shown below Both normally open and normally closed contacts are provided to suite the user s...

Page 13: ... least 48 hours every six months to maintain the batteries For storage temperatures between 26 C and 40 C the un powered storage time must not exceed three months For storage temperatures above 40 C the un powered storage time must not exceed one month Failure to maintain the batteries will result in decreased battery capacity decreased battery life and battery failure ...

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