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EPS 8000 UPS Single Module Users Manual www.mgeups.com.
IMPORT ANT SAFETY INSTRUCTIONS SA VE THESE INSTRUCTIONS – This manual contains important instructions for all EPS 8000 UPS Single Module that must be followed during operation of the equipment. W ARNING: Opening enclosures expose hazardous voltages.
EPS 8000 UPS Single Module Users Manual For service call 1-800-523-0142 86-132217-00 A02 06/03 Copyright © 2003 MGE UPS SYSTEMS, Inc. All rights reserved.
EPS 8000 UPS Single Module page iv EPS 8000 UPS Single Module Users Manual W arranty Information Wa rranty The liability of MGE UPS SYSTEMS, Inc. hereunder is limited to replacing or repairing at MGE UPS SYSTEMS, Inc.’s factory or on the job site at MGE UPS SYSTEMS, Inc.
How T o Use This Manual page v Users Manual How T o Use This Manual This manual is designed for ease of use and easy location of information. To quickly find the meaning of terms used within the text, look to the Glossary . To quickly find a specific topic, look at the T able of Contents.
CAUTION RECORD ALL SERIAL NUMBERS FOR THE SINGLE MODULE UPS SYSTEM. THESE SERIAL NUMBERS WILL BE REQUIRED IF YOUR SYSTEM NEEDS SER VICE. KEEP THIS MANUAL IN A PLACE WHERE YOU CAN REFERENCE THE SERIAL .
page c i Users Manual Contents section description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page Important Safety Instructions . . . . . . . . . . . . . . . . .Inside Front Cover W arranty . . . . . . . . . . . .
Section 2 Operation section description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 2.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1 2.1 Status Screen Display . . . .
Contents page c iii Users Manual Figures figure description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-1 EPS 8000 System, S-M Configuration, 1 GCC per Module . . . . . . .1-2 1-2 Circuit Breaker Locations on the EPS 8000.
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1.0 Scope This manual provides User instructions for operating the EPS 8000 UPS Single Module system (S-M). Descriptions include section descriptions, a general overview of system internal components, circuit breaker diagrams, descrip- tions for front panel displays and control indicators.
1.3 General Description EPS 8000 is a family of compact, high-efficiency uninterruptible power systems. Standard power ratings for single- module systems range from 555 to 800 kV A. EPS 8000 UPS are optimized for compatibility with non-linear computer-type loads.
Introduction page 1 — 3 Users Manual 1.4 Specifications, Circuit Breakers and Powerflow Diagrams 1.4.1 Circuit Breakers EPS 8000 UPS circuit breakers (except the battery disconnect circuit breaker QF1) are located behind the doors of the Input/Output cabinet.
Figure 1-3: Circuit Breaker Locations on the Maintenance Bypass Cabinet. Figure 1-4: Circuit Breaker Locations on the Q4S Cabinet. Introduction EPS 8000 UPS Single Module page 1 — 4 BYP ASS INPUT A,.
Introduction page 1 — 5 Users Manual 1.4.2 Power Flow Diagrams 1.4.2.1 Normal Operation During normal operation, power flows from the main AC input source (mains 1) into the UPS rectifier/battery charger section.
1.5 Single Module Indicators and Controls Single Module indicators and controls are located in three places on the UPS cabinet: on the front panel, behind a drop-down cover just below the front panel, and inside the cabinet doors, see Figure 1-7. In battery cabinets and auxiliary cabinets, the controls are located behind the cabinet doors.
Introduction page 1 — 7 Users Manual 1.5.1 Front Panel The UPS front panel, includes the emergency power off (EPO) pushbutton, the audible alarm, four LEDs that serve as system status indicators, the “inverter on” pushbutton, and the “inverter off” pushbutton.
AC input (mains 2) source, the static switch transfers the load to the inverter output. If the inverter cannot synchronize to the bypass AC input (mains 2) source, the load must be forced to transfer using the hidden panel (see section 2.1 1, Forced Tr ansfers).
Introduction page 1 — 9 Users Manual 1.5.2.2 Alphanumeric Display Pushbuttons Descriptions of the function of the alphanumeric display settings pushbuttons. ø Settings This pushbutton is used to select the display language and adjust the LCD screen contrast for optimal viewing.
Ø On/off This pushbutton is reserved for future use. ° Confirmation/V erify Depending on the displayed message, this pushbutton may serve to indicate confir- mation, positive response, and other functions.
Introduction page 1 — 11 Users Manual 1.5.3.1 LED Alphanumeric Indicators Fourteen alphabetically labeled LEDs provide detailed information on UPS status as follows: A : Emergency shutdown This red LED indicates that the emergency power off (EPO) or remote emergency power of f (REPO) has been activated.
I : Battery discharged This orange LED indicates that the battery has reached the end of its autonomy , shutting down the inverter . J : Inverter desynchronized This orange LED indicates that the inverter is not synchronized with the bypass AC input (mains 2).
Introduction page 1 — 13 Users Manual Return to float voltage (pushbutton #2) This pushbutton can be used during a battery charge cycle to force the rectifier/battery charger back to the float voltage level. Security pushbutton (key) This pushbutton must be pressed simultaneously with any of the following three pushbuttons.
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Users Manual Operation page 2 —1 2.0 Scope This section describes procedures for normal operation of EPS 8000 Single Module systems. Including interactive front panel display , settings for language.
Operation EPS 8000 UPS Single Module page 2 —2 2.2 Settings Selection Screen The settings selection screens allow the user to configure the display language and set the contrast of the LCD display . To access the settings selection screen, press the settings pushbutton, and follow the steps.
page 2 —3 Users Manual The most serious alarms are stored in the fault log, and may be viewed by following the steps shown in Figure 2-3. To reset the alarms, press the “clear fault log” pushbutton. See section 1.5.2.2 Alphanumeric Display Pushbuttons.
EPS 8000 UPS Single Module page 2 —4 Operation 2.5 V oltage Measurements To display voltage measurements, press the “V” key on the keyboard. See Figure 2-5. Figure 2-5: V oltage Measurement Displays. Select voltage measurements by pressing the ◊ pushbutton INPUT VAB VBC VCA V RMS BYPASS VAN VBN VCN V RMS BYPASS VAB VBC VCA V RMS INV.
page 2 —5 Users Manual 2.6 Current Measurements To display current measurements, press the “A” key on the keyboard. See Figure 2-6. Figure 2-6: Current Measurements Displays. Operation Select current measurements by pressing the Å pushbutton INPUT I1 I2 I3 A RMS BYPASS I1 I2 I3 A RMS I LOAD / IN = Å Å Å Å Å Å Å INV.
2.7 Power Frequency Measurements To display power or frequency measurements, press the “W .Hz” key on the keyboard. See Figure 2-7. Figure 2-7: Power and Frequency Measurements Displays. Operation EPS 8000 UPS Single Module page 2 —6 Select power and frequency measurements by pressing the „ pushbutton.
Operation page 2 —7 Users Manual 2.8 Battery Measurements To display battery voltage, current, ambient temperature, and time available or remaining, press the battery key on the keyboard. see Figure 2-8. Figure 2-8: Battery Measurements Displays. Select battery measurements by pressing the "battery" pushbutton.
Operation EPS 8000 UPS Single Module page 2 —8 2.9 LCD Messages This section presents the most common alarm messages that appear on the LCD (the alphanumeric section of the “hidden” panel), and explains their meaning. LOAD IS PROTECTED UPS IS ON LINE This is the normal display message.
Operation page 2 —9 Users Manual 2.9.2 Secondary Alarms The presence of these alarms is indicated by a flashing exclamation mark (!) on the general alarm message.
Operation EPS 8000 UPS Single Module page 2 —10 UPS INPUT PROBLEM CHECK FREQUENCY ! This message indicates that the main AC input (mains 1) frequency is out of tolerance. The rectifier/battery charger has shut down and the inverter is operating from its battery source.
Operation page 2 —11 Users Manual Q1 UPS INPUT CB OPEN ! This message indicates that the input isolation circuit breaker is open or has tripped. It must be closed for rectifier/battery charger start-up.
Q5N UPS OUTPUT ISOL. SWITCH OPEN ! This message indicates that the optional UPS isolation circuit breaker Q5N is open. The load is not supplied unless the maintenance bypass circuit breaker Q3BP is closed. Q3BP MAINT. BYPASS SWITCH CLOSED ! This message indicates that the optional maintenance bypass circuit breaker Q3BP is closed.
Operation page 2 —13 Users Manual 2.10 Preparations Before Start-up Preparing before start-up uses a check list to powering up the EPS 8000 UPS. Reference the EPS 8000 Shared Systems Users Manual 86.
2.10.2 Start-up The following start-up procedure should be performed during the initial start-up following installation of the system, and this sequence should be followed any time that the EPS 6000 UPS is being restarted from an off condition (i.
Operation page 2 —15 Users Manual NOTE: I f the transfer conditions are not satisfied (bypass AC input sources is out of tolerance) a forced transfer is required. Refer to section 2.12 Forced T ransfers. 2.10.3 Checks After Start-up After initial start-up of the system, normal operation should be tested.
2.1 1.2 Normal Shutdown To shut down the UPS, press the “inverter off” pushbutton on the module front panel for 3 seconds. T o restart, press the “inverter on” pushbutton. Note that the transfer will occur only if the inverter is synchronized to the bypass; otherwise, a forced transfer is needed, see section 2.
Operation page 2 —17 Users Manual configuration, close all the battery disconnect circuit breakers. 8. Automatic restart of the UPS is the normal configuration; the UPS inverter will start automatically and resume normal operation.
2.12 Forced T ransfers This section describes the normal transfer conditions and the procedures to be followed when issuing forced transfers. CAUTION: Opening Q4S with the inverter stopped in a UPS without maintenance bypass will disconnect the attached load.
Users Manual Maintenance Maintenance page 3 —1 3.0 Scope This section describes maintenance of the EPS 8000, including safety instructions, preventive maintenance, isolation for maintenance, information about replacement parts, and troubleshooting LCD alarm messages.
3.3 Preventive Maintenance The following preventive maintenance routines should be considered the minimum requirements; your installation and site may require additional preventive maintenance to assure optimal performance from your installed EPS 8000 and associated equipment.
Symbols Definition / Meaning @ At. / And/or . +/- Plus or Minus. ≤ Equal to or less than. # Number . °C Degree Celsius. °F Degree Fahrenheit. Ø Phase angle. Ω Ohm; unit of resistance. ®T rade Mark. 2nd Second. A, B, C Normal sequence of phases (clockwise) in three-phase power .
Carrier The company or individual responsible for delivering goods from one location to another . C Common. CB Circuit breaker . cm Centimeter . dB Decibels. DC Direct current . Conduit A flexible or rigid tube enclosing electrical conductors. C.S.S. Customer Support Service.
kV A KiloV olt-Ampere; is equal to 1000 V olt-Ampere. L Line. LCD Liquid-Crystal Display unit. LED Light Emitting Diode. Load protected The attached load is being supplied by the UPS module inverter output, and the battery is available in the event that incoming (utility) power is lost.
Q3BP Optional maintenance bypass circuit breaker (in single-module UPS system); optional mainte- nance bypass circuit breaker in MBC cabinet (in shared systems). Q4S Control or bypass circuit breaker (in single-module UPS systems); user-supplied bypass AC input circuit breaker supplying the SSC (in shared systems).
Glossary page g — 5 Users Manual VV olts VA Vo lt amperes VA V olt-amps, unit for apparent power measurement, equal V x I. V AC or V ac V oltage of AC type.
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