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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. These routines should be performed twice a year

(more often if required). We strongly recommend contracting MGE Customer Support Services for

preventive and remedial maintenance.

The technician or electrician performing preventive maintenance on the UPS must thoroughly read this manual, and

reference the EPS 8000 Installation Manual for Single Module and Shared systems (MGE part number 86-132215-

00) or the EPS 8000 Shared Systems Users Manual,  (MGE part number 86-132216-00), to become familiar with

the indicators, controls, and operation of the EPS 8000 UPS systems.

a.

Isolate and de-energize all EPS 8000 equipment for all maintenance operations.

b.

Ensure that all equipment is clean and free of loose dust, dirt, and debris. The exterior of the enclosures

may be cleaned with a mild solution of soap and water, lightly applied with a lint-free cloth.

c.

Inspect the air intake and exhaust plates and clean as required. Verify that air flows freely through the

equipment. Clean the air intake and exhaust plates, and the enclosure interior, with a vacuum cleaner.

d.

The EPS 8000 module is equipped with air filters that should be changed at regular intervals. Inspect the

filters regularly to determine how long the filters will last in your installation.

e.

Initiate the start-up procedure, as described in the User’s guide.

f.

Test the main operating sequences as applicable to your equipment configuration and installation.

3.4

Replacement Parts

There are no user replaceable parts inside the EPS 8000.

Three levels of replacement parts are available for the EPS 8000 UPS. The three levels are designated A, B, and

C. The level that you should keep on hand for your installation will vary depending on the type of maintenance

planned on site, and the configuration of your UPS system. Having the replacement parts on hand will prevent any

unacceptable delays (due to time involved obtaining spare parts) during critical periods, such as system start-up. 

Any items used during start-up will be replaced by MGE at no charge. Contact MGE Customer Support Services for

specific recommendations. A description of each level is provided below:

Level

Description

A

This level of replacement parts consists of consumable items, specifically fuses and air filters. It

is recommended to have these items on hand during installation of the UPS systems, including

initial start-up.

B

This level of replacement parts is recommended when the user can tolerate short-duration UPS

down-time to obtain replacement parts in the event of a major UPS failure. This level of replace-

ment parts consists of consumable items, specifically fuses, air filters, an inverter leg, and the

most critical circuit board assemblies.

C

This level of replacement parts is recommended when the user can tolerate only a minimum of

down-time in the event of a major UPS failure. This level of replacement parts consists of consum-

able items, specifically fuses, air filters, an inverter leg, and a complete set of circuit board

assemblies.

Maintenance

EPS 8000 UPS Single Module

page 3 —2

Summary of Contents for EPS 8000

Page 1: ...EPS 8000 UPS Single Module Users Manual w w w m g e u p s c o m...

Page 2: ...t to change please ask for confirmation of the information given in this publication ATTENTION Comme les normes sp cifications et produits peuvent changer veuillez demander confirmation des informatio...

Page 3: ...rs Manual For service call 1 800 523 0142 86 132217 00 A02 06 03 Copyright 2003 MGE UPS SYSTEMS Inc All rights reserved Printed in U S A MGE UPS SYSTEMS Inc 1660 Scenic Avenue Costa Mesa CA 92626 714...

Page 4: ...but to no one else Accessories supplied by MGE UPS SYSTEMS Inc but manufactured by others carry any warranty the manufacturers have made to MGE UPS SYSTEMS Inc and which can be passed on to Purchaser...

Page 5: ...lines and icons to convey important information Note lines and icons come in four variations WARNING Indicates information provided to protect the User and service personnel against safety hazards and...

Page 6: ...____________________________ __________________________ ______________________________ __________________________ ______________________________ __________________________ ____________________________...

Page 7: ...tion 1 2 1 4 Specifications Circuit Breakers and Powerflow Diagrams 1 3 1 4 1 Circuit Breakers 1 3 1 4 2 Power Flow Diagrams 1 5 1 4 2 1 Normal Operation 1 5 1 4 2 2 On Battery Operation 1 5 1 5 Singl...

Page 8: ...3 Checks After Start up 2 15 2 11 Shutdown 2 15 2 11 1 Emergency Shutdown Using EPO 2 15 2 11 2 Normal Shutdown 2 16 2 11 3 With Maintenance Bypass 2 16 2 11 4 Without Maintenance Bypass 2 17 2 12 Fo...

Page 9: ...am 1 5 1 7 EPS 8000 Front Panel Indicators and Controls 1 6 1 8 Front Panel Indicators and Control Display 1 7 1 9 Alphanumeric Display and Controls 1 8 1 10 Hidden Panel Indicator Controls 1 10 2 1 D...

Page 10: ...This page left blank intentionally EPS 8000 UPS Single Module page c iv...

Page 11: ...on Descriptions This manual is divided into four sections Section 1 Introduction This section provides User instructions for operating the EPS 8000 UPS Single Module system Descriptions include sectio...

Page 12: ...ation of UPS performance signals and telecommunication capabilities allow total control of the UPS by the user The EPS 8000 SSC battery and all auxiliary equipment is listed for safety by Underwriter...

Page 13: ...attery disconnect circuit breaker external to the UPS used to disconnect the battery from the UPS QF1 provides isolation and protection between the UPS and its battery system Q3BP optional Maintenance...

Page 14: ...enance Bypass Cabinet Figure 1 4 Circuit Breaker Locations on the Q4S Cabinet Introduction EPS 8000 UPS Single Module page 1 4 BYPASS INPUT A B C NEUTRAL GROUND BYPASS INPUT CB Q4S GROUND BYPASS INPUT...

Page 15: ...es out of tolerance the charger stops Power flows from the battery to the UPS inverter which in turn supplies the attached load When the main AC input source mains 1 returns the charger restarts autom...

Page 16: ...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 The following display des...

Page 17: ...g it will silence the alarm Should a higher level alarm condition occur after the reset has been activated the audible alarm will sound the new alarm condition Load not protected item 2 This red LED t...

Page 18: ...y and Controls The alphanumeric display is located directly below the front panel display See Figure 1 7 For complete instructions refer to section 2 0 Operation Using the Alphanumeric Displays A brie...

Page 19: ...ng Main AC input mains 1 current Bypass AC input mains 2 current Inverter output current Load current Percent current drawn by the load relative to UPS rating Crest factor per phase Power Freq This pu...

Page 20: ...controls and following controls and indicators see Figure 1 10 Figure 1 10 Hidden Panel Alphanumeric LEDs and Pushbutton Indicators and Controls Hidden panel alphanumeric legend upper display details...

Page 21: ...board fault Power supply board fault D Main AC input mains 1 outside tolerance This orange LED indicates that the main AC input mains 1 source is outside tolerance voltage and or frequency too high or...

Page 22: ...D indicates that circuit breakers QF1 Q4S Q5N or Q3BP are set to the maintenance position The UPS is not available for load protection 1 5 3 2 Hidden Panel Lower Pushbuttons Following are brief descri...

Page 23: ...lding the security key while pressing this pushbutton forces the transfer of the load to the inverter output when the bypass is out of tolerance The inverter must be on press the inverter on pushbutto...

Page 24: ...This page left blank intentionally EPS 8000 UPS Single Module page 1 14...

Page 25: ...ion During normal operation when there are no alarm conditions present and the load is supplied by the UPS inverter output the display will present the general status message LOAD IS PROTECTED UPS IS...

Page 26: ...the sequential steps If there is a flashing exclamation mark in the displayed message there is additional information to be viewed follow the steps as indicated in Figure 2 3 Most alarm messages are...

Page 27: ...rement Sensors Located throughout the EPS 8000 S M UPS Operation ALARM ALARM MESSAGE NUMBER 1 LAST ALARM MESSAGE general status screen This message on the general status screen indicates an alarm cond...

Page 28: ...VAN VBN VCN V RMS INV VAB VBC VCA V RMS LOAD VAN VBN VCN V RMS LOAD VAB VBC VCA V RMS Main input mains 1 phase to phase voltages in VAC RMS Bypass input mains 2 phase to neutral voltages in VAC RMS By...

Page 29: ...I1 I2 I3 A RMS BYPASS I1 I2 I3 A RMS I LOAD IN INV I1 I2 I3 A RMS LOAD I1 I2 I3 A RMS IN A LOAD I1 I2 I3 CREST F Main input mains 1 currents in AAC RMS Bypass input mains 2 currents in AAC RMS Invert...

Page 30: ...OAD P1 P2 P3 KW P TOTAL P KW P KVA LOAD POWER FACTOR LOAD P F P LOAD Pn LOAD P1 P2 P3 KVA PN KW Frequency in Hertz for the main input mains 1 bypass input mains 2 and inverter output Real power drawn...

Page 31: ...ushbutton UBAT V AVAILABLE BAT TIME MN KV LOAD IBAT A T BAT C OR REMAINING BAT TIME MN KV LOAD Baattery voltage VDC charge or discharge current ADC and battery temperature degrees Celsius If the main...

Page 32: ...inverter REMAINING BAT TIME __ MN KW LOAD __ This message is automatically displayed every five seconds when the UPS is on battery It alternates with the previous message The message provides an estim...

Page 33: ...es an interruption of power to the load BYPASS PROBLEM CHECK VOLTAGE This message indicates that the bypass AC input mains 2 source is out of voltage tolerance The inverter has switched to free runnin...

Page 34: ...ource This condition occurs for example when the load is being supplied by an undersized motor generator set the UPS battery source is called upon to make up the difference BATTERY CURRENT LIMIT COMMA...

Page 35: ...ndicates that an overload below 1 5 times the full power rating of the inverter has occurred and that the inverter has shut down The flashing A indicates that the operator should check the load curren...

Page 36: ...down following an overload condition disconnecting the load DISPLAY NUMBER 1 UNAVAILABLE This message indicates that the alphanumeric display is not operating properly The status of the UPS is still...

Page 37: ...erly connected and securely tightened The upstream and downstream protective devices are not tripped and have been sized properly for the UPS and load requirements The input voltage is the same as ind...

Page 38: ...a the bypass source Note that if your UPS configuration does not include the maintenance bypass option start up requires only closing Q4S to supply the bypass source to the attached load g Close the i...

Page 39: ...ency Shutdown Using EPO CAUTION Pressing the EPO disconnects the attached load The emergency power off EPO is to be used during emergency situations only where a hazard to personnel or equipment exist...

Page 40: ...en the UPS isolation circuit breaker Q5N and lock open The UPS is now isolated from the load which is supplied by the bypass AC input source 4 Open the circuit breaker Q4S 5 Open the battery disconnec...

Page 41: ...UPS without maintenance bypass will disconnect the attached load 3 Open the battery disconnect circuit breaker s QF1 4 Open the input isolation circuit breaker Q1 For complete protection the upstream...

Page 42: ...ers cannot take place without interruption A forced transfer is required Forced transfers require a power interruption to the load of 0 8 seconds Before issuing a forced transfer command be certain th...

Page 43: ...NT SAFETY INSTRUCTIONS FOR SERVICING BATTERIES A Servicing of batteries should be performed or supervised by personnel knowledgeable of batteries and the required precautions Keep unauthorized personn...

Page 44: ...ocedure as described in the User s guide f Test the main operating sequences as applicable to your equipment configuration and installation 3 4 Replacement Parts There are no user replaceable parts in...

Page 45: ...coustical noise of surrounding environment Ambient noise The noise level of the environment Attached load The load attached to the UPS output such as a computer system or manufacturing system Audible...

Page 46: ...local codes and regulations Not necessarily qualified to maintain or repair electrical or electronic equipment FET Field effect transistor Freq Frequency Frequency slew rate The change in frequency pe...

Page 47: ...sand circular mil standard wire sizes for multiple stranded conductors over 4 0 AWG in diameter M is from Roman numerical system indicating 1000 Module Refers to individual power inverter module N Neu...

Page 48: ...held down while the desired function is executed Shipping damage Any damage done to an article while it is in transit SPDT Single Pole Double Throw SSC Static switch cabinet in shared systems Static T...

Page 49: ...sary page g 5 Users Manual V Volts VA Volt amperes VA Volt amps unit for apparent power measurement equal V x I VAC or Vac Voltage of AC type VDC or Vdc Voltage of DC type ve Battery voltage Via By wa...

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Page 51: ...__ COMPANY ________________________________________________________________________________ STREET ADDRESS _________________________________________________________________________ CITY ______________...

Page 52: ......

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Page 54: ...1660 Scenic Avenue Costa Mesa California 92626 714 557 1636 w w w m g e u p s c o m...

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