MGE UPS Systems EPS 7000 user manual Front Panel, Audible alarm

Page 17

Users Manual

1.5.1Front 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. See Figure 1-8.

Figure 1-7: Front Panel Indicators and Control Display.

EPO

On the left side of the front panel, an emergency power off (EPO) pushbutton is provided, with a protective cover to guard against inadvertent operation. This pushbutton, when activated, disconnects the main AC input (mains 1), bypass AC input (mains 2), and battery power to the UPS, and disconnects output power to the attached load.

Audible alarm

(item 1) The audible alarm provides an audible warning to the operator by sounding

 

a pulsed “beep” when any of the following conditions occur:

 

◗

Load transferred to bypass (mains 2)

 

◗

Load supplied via battery

 

◗

Operating problem

 

During minor alarm conditions, the alarm sounds at a slow rate and a low sound

 

level. When the battery approaches the low-voltage shutdown level, the alarm

 

sounds louder and at an increased rate. If the inverter shuts down, the alarm

 

sounds loudly and continuously.

 

An audible alarm reset is located on the hidden panel. See Figure 1-7. Pressing it

 

will silence the alarm. Should a higher-level alarm condition occur after the reset

¡Load not protected

has been activated, the audible alarm will sound the new alarm condition.

(item 2 ) This red LED turns on when any of these conditions occur:

 

◗

The load is no longer protected following an inverter shutdown,

 

 

or the opening of the isolation circuit breaker (Q5N).

 

◗

The battery circuit breaker QF1 is open, making battery power

 

 

unavailable.

Operating problem

(item 3) This orange LED turns on when an operating problem exists, such as fan

⁄

failure; static switch power supply fault; battery temperature fault;

overload fault; or bypass AC input (mains 2) out of tolerance. The UPS

continues to protect the attached load.

ı

Í

Battery

(item 4) This orange LED turns on to indicate that the attached load is

 

being partially or completely supplied by the battery. When the main AC

 

input (mains 1) fails or is outside tolerance, stored battery energy is

 

supplied to the inverter, which in turn supplies the load.

Load protected

(item 5) This green LED indicates that the attached load is supplied by

 

the inverter and protected by the battery. During normal operation, this

 

LED is the only one that is on.

Introduction

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Contents EPS With installation manual, may cause harmful interference to Service to qualified personnel onlyOpening enclosures expose hazardous voltages. Always refer Louverture des cabinets expose des tensions dangereusesMGE UPS SYSTEMS, Inc Scenic Avenue Costa Mesa, CA 92626 714 For service callService and Factory Repair Call WarrantyRevision History Proprietary Rights StatementService personnel against safety hazards and possible How To Use This ManualService personnel against possible equipment damage Equipment featureUPS Unit Serial Number MBP Cabinet Serial Number N t e n t EPS 7000 Single Module Operation Figures This page left blank intentionally Scope MaintenanceReference Manuals Section Descriptions IntroductionGeneral Description QF1 Specifications, Circuit Breakers and Powerflow DiagramsCircuit Breaker Locations on the Maintenance Bypass Cabinet On-Battery Operation Power Flow Diagrams Normal OperationFront Panel Alphanumeric Display Hidden Panel Cover Plate Single Module Indicators and ControlsFront Panel Audible alarmTwo-line Alphanumeric Display Settings Display PushbuttonAlphanumeric Display and Controls Alphanumeric Display Pushbuttons ØOn/off Hidden Panel IndicatorsNumbered Lights Reserved for future use LED Alphanumeric IndicatorsClear fault log Test connectorAudible alarm reset Hidden Panel Lower PushbuttonsExperience an interruption for a minimum of 0.8 seconds. Be Using the forced transfer functions will cause the load toCertain the load can tolerate this interruption see section Forced TransfersThis page left blank intentionally General status screen Status Screen DisplayAlarms Settings Selection ScreenSelect English U.S. as the display language to match Displays as presented in this manualBypass V, Hz Sensor MeasurementsRMS Voltage MeasurementsLoad Crest F Current MeasurementsLoad P1 P2 P3 KVA Power Frequency MeasurementsBattery Measurements Displays Battery MeasurementsLCD Messages General AlarmsSecondary Alarms Battery Cabinet Overtemp Charger OFF Inverter Shutdown Thermal Overload a Start-up Preparations Before Start-up Checks Before Start-upBecause it is standard for the UPS module to be Automatically start after the battery disconnect circuitProgrammed for automatic restart, the inverter will Breaker QF1 has been closedNormal Shutdown With Maintenance BypassOpening Q4S with the inverter stopped in a UPS without Without Maintenance BypassMaintenance bypass will disconnect the attached load Forced Transfer from Inverter to Bypass AC Input Uninterrupted Transfer ConditionsForced Transfer from Bypass AC Input Source to Inverter Batteriebank mit einer sehr hohen Kurzschluss Gleichstrom zum Wechselrichter kommt gewoehnlich von derLeistungsfaehigkeit. Unbeabsichtigtes Schweissen und Schwere Verbrennungen koennen die Folgevon fehlerhafterLevel Description Preventive MaintenanceReplacement Parts O s s a r y Symbols Definition / MeaningIEC LCD Spdt Volts This page left blank intentionally Reorder form Scenic Avenue Costa Mesa, CA Page Page Scenic Avenue, Costa Mesa, California 92626 714 557
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