MGE UPS Systems Comet TM 5 - 30 kVA User Manual

Comet ™

5 - 30 kVA

installation and user manual

!!

fault

		GERIN
MERLIN
comet
BY MGE	UPS	SYSTEMS

E-6761200XT/FC

MERLIN GERIN

B Y M G E U P S S Y S T E M S

Dear User,

This manual has been designed to provide you with all the information you need to install and use your Comet uninterruptible power supply.

Feel free to contact us for any further information you may require concerning special applications beyond the scope of this manual.

MGE UPS SYSTEMS

safety recommendations

■warning: every Comet UPS is equipped with its own internal power source, i.e. the backup battery. Consequently the load may energised even if the AC input power supply has been cut;

■the load is supplied with power as soon as the AC input power supply is connected, even if no LEDs are on;

■danger: dangerous voltage levels are present inside the Comet system. Any servicing requiring removal of the protection panels must be carried out by qualified personnel certified by MGE UPS SYSTEMS;

■Comet must be earthed;

■Comet must not be installed near liquids or in an excessively humid environment;

■Comet must be protected from penetration by liquids or extraneous objects;

■ventilation grates must remain free;

■Comet must not be placed in direct sunlight or near a heat source;

■Comet contains sealed lead-acid battery cells that must be disposed of in accordance with applicable environmental regulations;

■prior to installation, store Comet in a dry location. Storage temperatures must be between: –20°C and +45°C ;

■if Comet must remain unused for a long period, monthly re-energising for a

24-hour period is advised to recharge the battery. Otherwise, the battery may be damaged irreversibly;

■in accordance with standard EN 50091-1, Comet UPS users must affix warnings on all primary power isolating devices installed a certain distance from the UPS in order to alert maintenance personnel of the presence of a UPS on the circuit; the warning must display the following text or its equivalent:

"an uninterruptible power supply is present and must be isolated before carrying out any work on this circuit";

■warning: this is a product for restricted sales distribution to informed partners. Installation restrictions or additional measures may be needed to prevent disturbances.

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Comet installation and user manual: E-6761200XT/FC

Merlin Gerin by MGE UPS SYSTEMS

DANSK sikkerhedsforskrifter

NORSK sikkerhedsforskrifter

cadvarsel: Comet er forsynet med indbyggede eller eksternt tilsluttede batterier. Udstyret kan derfor være strømførende, selv om det ikke er tilsluttet den almindelige elforsyning;

cudstyret er strømførende så snart det er tilsluttet den almindelige elforsyning, selv om frontpanelets lamper er slukkede;

cfare: der er højspænding i en Comet. Indgreb indenfor beskyttelsespladerne må derfor kun foretages af specielt uddannet personale eller teknikere godkendt af MGE UPS SYSTEMS;

cComet må aldrig benyttes uden jordforbindelse;

cComet må ikke benyttes i nærheden af væsker, eller i omgivelser med høj luftfugtighed;

cdet skal sikres, at fremmedlegemer og væsker ikke kan trænge ind i udstyret;

cdet skal sikres, at ventilationsgitrene aldrig er tilstoppede;

cComet må ikke opstilles i stærkt sollys eller i varme omgivelser;

cComet er udstyret med lukkede blybatterier. Ved destruktion eller bortskaffelse skal der tages hensyn til den til enhver tid gældende lovgivning for batteriaffald;

coplagring af Comet inden igangsættelsen må kun finde sted i et rent, tørt lokale, hvor temperaturen holdes indenfor -20°C til +45°C;

chvis Comet ikke benyttes gennem en længere periode, skal batterierne vedligeholdslades ca 24timer en gang om måneden, for at sikre at de ikke bliver ødelagt;

cadvarsel: det drejer sig om et produkt, der kun sælges til erfarne installatører eller brugere. For at undgå forstyrrelser kan det være nødvendigt at foretage begrænsninger i forbindelse med installationen eller at gennemføre yderligere forholdsregler.

■obs: Comet er utstyrt med en uavhengig energikilde (batteri). Apparatet kan derfor være strømførende selv om det ikke er koplet til strømnettet;

■apparatet er strømførende fra det øyeblikk det koples til strømnettet, selv om signallampen ikke lyser;

■advarsel: de interne spenningene i apparatet kan være farlige! Ethvert inngrep som medfører åpning av beskyttelsesdekslene, må derfor utelukkende overlates til spesielt utdannede teknikere som er godkjent av MGE UPS SYSTEMS;

■det er absolutt påkrevet at apparatet koples til en jordet stikkontakt;

■unngå å plassere apparatet i nærheten av væsker eller i et sterkt fuktig miljø;

■pass på at væsker eller fremmede gjenstander ikke trenger inn i apparatet;

■unngå å tette til lufteventilene;

■Ikke plassér apparatet i sterkt sollys eller i nærheten av en varmekilde;

■Comet er utstyrt med batterier som inneholder vanntett bly. Kastes batteriene eller annet batteriavfall, må det skje i overensstemmelse med gjeldende lov;

■lagres apparatet før bruk, må det plasseres på et tørt sted hvor temperaturen ligger mellom –20°C og +45°C;

■dersom apparatet ikke brukes i lengre perioder, tilrådes det å kople det til strømnettet ca. én gang i måneden i 24 timer. Dermed opplades batteriet. Unnlater man å gjøre dette, kan batteriet ødelegges definitivt;

c advarsel: dette produktet skal kun selges til erfarne installatører eller brukere. For å unngå forstyrrelser kan begrensninger i.f.m. installasjon eller ytterligere sikkerhetstiltak være nødvendig.

Merlin Gerin by MGE UPS SYSTEMS

Comet : 6761200XT/FB

i

PORTUGUÊS recomendações de segurança

■Atenção: o Comet possui a sua própria fonte de energia interna (bateria). Deste modo, a utilização pode ficar sob tensão, caso a rede eléctrica de alimentação seja cortada;

■a utilização fica sob tensão, a partir do momento em que a rede eléctrica de alimentação esteja presente, mesmo se não houver sinalização luminosa activa;

■perigo: existem tensões perigosas no interior do Comet. Qualquer intervenção que que exija a abertura dos paineis de protecção, só pode ser feita por pessoal qualificado pela MGE UPS SYSTEMS;

■o Comet deve ser, imperativamente, ligado à terra;

■não colocar o Comet próximo de líquidos ou num ambiente demasiado húmido;

■evitar a penetração de qualquer líquido ou objectos estranhos para o interior do Comet;

■não obstruir as grelhas de ventilação do Comet;

■não colocar o Comet à exposição do sol ou junto de uma fonte de calor;

■o Comet contém na bateria, elementos em chumbo estanque, cujos detritos deverão ser entregues a entidades competentes para a devida reciclagem;

■em caso de armazenamento antes da colocação em serviço, colocar o Comet num local seco. Limites de tempertura de armazenamento: –20°C a +45°C;

■caso o Comet tenha de ficar desligado durante um período de tempo longo, é aconselhável, cerca de uma vez por mês, colocá-lo sob tensão cerca de 24h, de forma a recarregar a bateria e evitar a sua degradação irreversível;

c advertência: trata-se de um produto para distribuição restrita aos instaladores ou utilizadores experientes. Certas restrições na instalação ou certas medidas adicionais podem vir a ser necessárias para evitar as perturbações.

ii

Comet : 6761200XT/FB

Merlin Gerin by MGE UPS SYSTEMS

SUOMALAINEN turvallisuusohjeet

■huomio: Comet omistaa oman sisäisen energialähteensä (patteristo). Virta voi siis laitteessa olla päällä, vaikka sähköverkko onkin katkaistu;

■virta on päällä heti, kun sähköverkosto on kytketty, vaikkei merkkivaloa olekaan syttynyt;

■varoitus: Cometin sisällä on vaarallisia jännitteitä. Ainoastaan

MGE UPS SYSTEMS’n valtuuttama pätevä henkilökunta voi suorittaa suojakilpien avaamista vaativia toimia;

■Comet on välttämättä liitettävä maavirtaan;

■älkää koskaan asettako Cometia ympäristöön, jossa se voisi joutua kosketuksiin nesteiden tai liiallisen kosteuden kanssa;

■älkää koskaan antako nesteiden tai vieraiden esineiden päästä Cometin sisälle;

■älkää koskaan peittäkö Cometin ilmanvaihtoristikkoa;

■älkää asettako laitetta suoraan auringonvaloon tai lämmölähteen lähelle;

■Comet sisältää patterielementtejä vedenpitävästä lyijystä. Niiden hävittämisessä on noudatettava voimassa olevaa lakia;

■mikäli ette ota laitetta heti käyttöön, on se varastoitava kosteudelta suojattuun paikkaan; ei alle –20°C tai yli +45°C lämpötilaan;

■jos Comet joutuu pitkään olemaan kytkemättömänä, suosittelemme sen kytkemistä noin kerran kuukaudessa 24 tunnin ajaksi, patteriston uudelleen lataamiseksi. Muutoin se voisi turmeltua peruuntumattomasti;

c varoitus: tämä tuote on tarkoitettu rajoitettuun myyntiin tuotteisiin perehtyneille liikekumppaneille. Asennukseen liittyvät rajoitukset tai muut lisätoimenpiteet ovat ehkä tarpeen häiriöiden estämiseksi.

Merlin Gerin by MGE UPS SYSTEMS

Comet : 6761200XT/FB

iii

SVENSK säkerhetsföreskrifter

■observera: Comet har en egen intern kraftkälla (batteri). Apparaten kan därför vara strömsatt även om den inte är ansluten till elnätet;

■apparaten är strömsatt så snart den är ansluten till elnätet, även om ingen kontrollampa är tänd;

■varning: det finns farliga spänningar i Comet. Ingrepp som kräver att skyddshöljet avlägsnas får endast utföras av kvalificerad, och av MGE UPS SYSTEMS godkänd, personal;

■Comet måste ovillkorligen anslutas till ett jordat uttag;

■placera aldrig Comet i en lokal med hög luftfuktighet eller där den kan komma i kontakt med vätska;

■låt aldrig vätska eller främmande föremål komma in i Comet;

■täck aldrig för Comets ventilationsgaller;

■placera aldrig Comet i direkt solljus eller i närheten av en värmekälla;

■Comet har ett kapslat batteri med blyelement. Dessa får endast slängas i enlighet med gällande lag;

■skall apparaten lagras före användning måste den förvaras i ett torrt utrymme. Apparaten får ej utsättas för temperaturer under –20°C eller över +45°C;

■Om Comet inte skall användas under en längre tid rekommenderar vi att apparaten strömsätts ca 1 gång i månaden under minst ett dygn för uppladdning av batteriet. Om detta inte sker kan batteriet skadas definitivt;

c varning: beträffande en produkt avsedd för begränsad distribution till på förhand underrättade installatörer eller konsumenter. Restriktioner vid installationen eller extra tillkommande åtgärder kan vara nödvändiga för att undvika störningar.

iv

Comet : 6761200XT/FB

Merlin Gerin by MGE UPS SYSTEMS

contents

introduction to Comet

safety information .............................................................................................	1.1
identification to Comet .....................................................................................	1.1
configuration ....................................................................................................	1.1
functional diagram ............................................................................................	1.2

installation

general .............................................................................................................	2.1
final positioning ................................................................................................	2.1
special precautions ..........................................................................................	2.2
connections ......................................................................................................	2.2

controls and indications

basic controls and indications ..........................................................................	3.1
controls and diagnostics display ......................................................................	3.4

start-up

preliminary checks ...........................................................................................	4.1
powering up .....................................................................................................	4.1
inverter start-up ................................................................................................	4.2

shutdown

inverter shutdown .............................................................................................	5.1
powering down .................................................................................................	5.1

operation

normal operation ..............................................................................................	6.1
operation on battery power ..............................................................................	6.1
overload ...........................................................................................................	6.3

alarms

alarm indications table .....................................................................................	7.1
manual bypass .................................................................................................	7.3

communication

standard functions ............................................................................................	8.1
options ..............................................................................................................	8.2

Merlin Gerin by MGE UPS SYSTEMS

Comet installation and user manual: E-6761200XT/FA

1

contents (cont')

maintenance and servicing

	safety reminder ..............................................................................................	9.1
	preventive maintenance by user ....................................................................	9.1
	maintenance by the local representative certified by MGE UPS SYSTEMS . 9.1
	customer training ...........................................................................................	9.1
	maintenance contracts ...................................................................................	9.2
	extended battery cabinet .................................................................................	10.1
	emergency off .................................................................................................	10.3
	full galvanic isolation transformer ....................................................................	10.4
	separate Mains 2 transformer (AC bypass input) ...........................................	10.5
	frequency converter ........................................................................................	10.6
	hot standby system .........................................................................................	10.7
	harmonics filter ................................................................................................	10.8
	combined options ............................................................................................	10.9
options
appendices
	general characteristics ....................................................................................	11.1
	range characteristics .......................................................................................	11.1
	Comet series 11 general characteristics .......................................................	11.2
	Comet series 31 general characteristics .......................................................	11.3
	Comet series 33 general characteristics .......................................................	11.4
	selection of cable cross-sections ....................................................................	11.5
	selection of protection devices ........................................................................	11.6
	connection of cable shielding ..........................................................................	11.8
glossary
	........................................................................................................................	12.1

Comet and the options presented in this manual must be installed only by qualified personnel. Other operations may be carried out by any person having read this manual.

All Comet products are protected by patents. They implement original MGE UPS

SYSTEMS technology not available to other manufacturers.

Due to evolving standards and technology, products may be modified without notice. Indications concerning technical characteristics and dimensions are not binding unless confirmed by MGE UPS SYSTEMS.

This document may be copied only with the prior written consent of MGE UPS SYSTEMS. Authorized copies must be marked "Comet MGE UPS SYSTEMS installation and user manual nr. 6761200XT".

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Comet installation and user manual: E-6761200XT/FA

Merlin Gerin by MGE UPS SYSTEMS

introduction to Comet

safety information

Danger: high voltages are present inside the Comet system. Any servicing requiring removal of the protection covers may be undertaken only by qualified personnel certified by MGE UPS SYSTEMS.

identification to Comet

Read the label (figure 1) on the back of Comet or inside the door to familiarise yourself with the characteristics of your UPS.

Identification plate

MERLIN GERIN

comet S.(1)

RESEAU 1 - MAINS 1 - NETZ 1

	1	Mains 1 characteristics
		(AC input)

RESEAU 2 - MAINS 2 - NETZ 2

Mains 2 characteristics 2 (optional AC bypass

input)

UTILISATION - LOAD - AUSG

3	load characteristics

4 serial number

Fig. 1

(1): Comet model number:

■S11 (series 11): single-phase input power and single-phase load;

■S31 (series 31): three-phase input power and single-phase load;

■S33 (series 33): three-phase input power and three-phase load.

configuration

A configuration sheet, included with the UPS, indicates all the factory settings. Keep the sheet in a safe place as it may be required by the after-sales support technicians if you wish to modify parameters.

Merlin Gerin by MGE UPS SYSTEMS

Comet installation and user manual: E-6761200XT/FA

1.1

introduction to Comet (cont')

functional diagram

AC input

3

load

1 2

6

5

4

7

8

Fig. 7

key for figures 2 to 7

1input power switch,

2rectifier module,

3"static bypass" module,

4battery circuit breaker (switch and fuse for 5 kVA Comet S11 or S31),

5battery,

6charger module,

7inverter module,

8"manual maintenance bypass" switch,

9basic control and indication panel,

10special command and diagnostic display,

11location of the optional communication ports,

12fans,

13connection cover panel,

14diagnostics and configuration connector (reserved for after-sales support),

15standard communication port,

16switchgear cover panel,

43protection panel,

44protective cover.

1.2

Comet installation and user manual: E-6761200XT/FA

Merlin Gerin by MGE UPS SYSTEMS

installation (for qualified personnel only)

general

■"Comet" cubicles are equipped with 4 wheels for moving over short distances and with jacks to immobilize the unit. The jacks must be raised prior to repositioning a cubicle;

■operating temperature range: 0° to 30°C at rated output.

Important:

■the battery is of the sealed type. Battery storage or prolonged shutdown of Comet should never exceed 3 months at 20°C without recharging, for a battery initially at 100% charge. Battery recharge requires system start-up. The battery warranty is void if the 6 month recharge interval is not respected;

■battery life is extended when it is installed in a room with an ambient temperature of 15 to 25°C. Above 25°C, battery life reduced by 50% for every additional 10°C;

■heat loss resulting from Comet operation must be taken into account when sizing the ventilation system. See the Appendices;

■connections are made through the bottom section in the back or the front, depending on the type of Comet;

■warning in compliance with EN 50091-2: this product is sold through limited sales channels to installers or well-informed users. Installation restrictions or additional measures may be necessary to prevent electromagnetic disturbances.

final positioning (figure 8)

"Comet" layout seen from above

	100 mm minimum
	(for ventilation)
	L1	L	"e" see note
	L2
	L2	air extraction
	P	Comet	extended
			option
	P1

Fig. 8

Merlin Gerin by MGE UPS SYSTEMS

Comet installation and user manual: E-6761200XT/FC

2.1

installation (cont')

Note:

For Comet series 31 15/20kVA and Comet series 33 units, a clearance "e" of 5mm is required to the left of the optional cubicles for door opening.

■ensure that clearance L1 to the left of Comet is greater than L for access to the battery cells and L2 greater than 100mm (for ventilation);

■ensure that clearance P1 in front of Comet is greater than P for servicing via the front;

■connection cables must be of th flexible type and sufficiently long to enable forward movement of Comet without disconnection (allow an extra 1.5 meters);

■additional cubicles (extended battery, auxiliaries, etc.) must be placed to the right of Comet. If the above installation conditions are not respected, maintenance and servicing of the unit may require system shutdown.

special precautions

■load cables must be run separately from all other cables (power supply or computer system interconnection cables). They should not pass near interference-emitting equipment or sensitive loads;

■if Comet is installed with the "Teleservice" option, a telephone connector and power supply must be provided for the modem used with it.

connections

Connection cables should enter at the bottom:

■in the back for Comet series 11 and series 31 5/7.5/10kVA;

■in front for Comet series 31 15/20 kVA and series 33 10/15/20/30kVA.

electrical diagram for power connections

Figure 9 presents a single-line electrical diagram for a typical installation. The power cables requiring connection are shown as bold lines (see the "appendices" for information on selecting cable cross-sections).

Connection diagram for a single AC input

	Comet
AC input	XR1	XR2	load
		XR3
		XR3
		extended battery
		cubicles (optional)

Fig. 9

2.2

Comet installation and user manual: E-6761200XT/FC

Merlin Gerin by MGE UPS SYSTEMS

connection of power cables (figures 10 to 14)

Make sure the unit is powered down and disconnected from all input power before making connections to the terminal blocks at the front or back of the cubicle (depending on the type of Comet).

For protection of life and property, earth wires should always be connected first.

For Comet 31 series or Comet 33 series devices, the Mains power supply must be with a neutral cable.

For Comet 33 series, the neutral may be reconstituted by a complete insulation transformer option (a transformer with a triple-point structure).

Neutral system: identical upstream and downstream neutral systems (no galvanic isolation). Comet can be used with all types of neutral systems, on the condition that standard practices be respected.

■ check that AC input power circuit breaker, installed upstream on the low voltage switchboard, is in off (O) position;

■ check that the input power switch 1 and the battery circuit breaker 4 are in off (O) position.

Connection sequence for 5 kVA Comet:

■open the protective cover 44 (secured by 2 screws) and the connection cover panel 13 (secured by 6 screws);

■strip the duct of the AC input power and load cables over a length of 7 cm;

■strip each wire over a length of 1 cm;

■insert the cables of the AC input power and load through the bushings of the connection cover panel;

■connect the cables of the AC input power to "Mains 1" XR1 terminal block in the order shown on the label;

■connect the load cables to the "load" XR2 terminal block in the order shown on the label;

■connect the various options as shown in the relevant section for each one in this manual;

■when the cables have been connected, the duct of each cable must be tightened by a binding band against the horizontal binding bar placed beneath the terminal block in order to protect the conductors from tensile loads;

■put back the connection cover panel 13 and the protective cover 44 .

Merlin Gerin by MGE UPS SYSTEMS

Comet installation and user manual: E-6761200XT/FC

2.3

installation (cont')

Connections for Comet series 11 5kVA

		L L+	N L1
XR2
load
L1
N
		XR3	XR1
		battery	Mains 2
		(optional)	(optional)
XR1	to load
Mains 1	(single-phase
L1	+ earth)	see the paragraph on
N		"connection of the cable
		shielding" in the section
	from LV switchboard	"appendices"
	(single-phase +
	earth)

Fig. 10

Connections for Comet series 31 5kVA

XR2

load

L1

N

XR1

Mains 1

L3

L2

L1

N

to load

(single-phase + earth)

from LV switchboard (three phases, neutral and earth)

L L+

N L1

XR3	XR1
battery	Mains 2
(optional)	(optional)

see the paragraph on "connection of the cable shielding" in the section "appendices"

Fig. 11

2.4

Comet installation and user manual: E-6761200XT/FC

Merlin Gerin by MGE UPS SYSTEMS

Connection sequence for Comet other than 5kVA:

■ remove the connection cover panel 13 that is secured with screws;

■connect the AC input cables to Mains 1 terminal block XR1, carefully respecting earth, neutral and phase correspondence as indicated on the label;

■connect the load cables to load terminal block XR2 carefully respecting the earth, neutral and phase correspondence as indicated on the label;

■connect the various options as indicated in the corresponding sections of this manual;

■once the cables have been connected, each cable’s sleeving must be secured against the horizontal hooping bar located above the terminal block by a hoop in order to protect the conductors from eventual tensile stress;

■refit the connection cover panel.

Connections for Comet series 11 7.5/10kVA

N L1	N L1	L L+	N L1
XR1	XR1	XR3	XR2
Mains 1	Mains 2	battery	load
	(optional)	(optional)
	from LV switchboard		to load
	(single-phase +		(single-phase
	earth)		+ earth)

Fig. 12

Merlin Gerin by MGE UPS SYSTEMS

Comet installation and user manual: E-6761200XT/FC

2.5

Connections for Comet series 31 7.5/10/15/20kVA

N L1 L2 L3	N L1	L L+	N L1
XR1	XR1	XR3	XR2
Mains 1	Mains 2	battery	load
	(optional)	(optional)
from LV switchboard			to load
(three phases,			(single-phase
neutral and earth)			+ earth)

Fig. 13

Connections for Comet series 33 10/15/20/30kVA

N L1 L2 L3	N L1 L2 L3	L	L+	N L1 L2 L3
XR1	XR1	XR3		XR2
Mains 1	Mains 2	battery		load
	(optional)	(optional)
from LV switchboard			to load
(three phases			(three-phases, neutral
neutral and earth)			and earth)

Fig. 14

2.6

Comet installation and user manual: E-6761200XT/FC

Merlin Gerin by MGE UPS SYSTEMS

controls and indications

Comet operating controls are made up of (see figure 15):

■ basic controls and indications 9 concerning the overall operating status of the UPS;

■ the special command and diagnostic display panel 10 include specific controls and a 2-digit display for the UPS fault numbers. These numbers provide UPS diagnostics.

Controls and indications

basic controls and indications panel 9

!

!

!

!

fault

fault

special command and diagnostic display 10

Fig. 15

basic controls and indications

Positioned in the upper left-hand corner of the front panel, this panel provides information on the operating status of the system (see figure 16). Interpretation of signals is very easy and requires no special training.

They indicate:

■ normal operation (load protected); ■ downgraded operation (fault);

■ danger of a break in the supply of power to the load (load not protected); ■ operation on battery power.

!

!

17 18 19

Fig. 16

				Key to figure 16 :
+ –	I		O	17	buzzer,
				18	"load not protected" light,
				19	"fault" light,
20 21	22	23		20	"battery status or operation on
				battery power" light,

21"load protected" light,

22"inverter on" button,

23"inverter off" button.

Merlin Gerin by MGE UPS SYSTEMS

Comet installation and user manual: E-6761200XT/FA

3.1

controls and indications (cont')

"load protected" light 21

!	!	+ –

21

"battery status" light 20

!	!	+ –

20

"fault" light 19

!	!	+ –

19

"load not protected" light 18

!	!	+ –

18

		This light indicates that Comet is
		operating normally. The load is
I	O	supplied by via the inverter output 7 .
		This light also goes on during normal
		start-up of Comet.

			This orange light indicates:
			■ inverter 7 operation on battery
	I	O	power following an AC input failure or
			detection of an AC input voltage
			outside tolerances;
			■ it flashes to indicate that the low
			battery shutdown warning level has
			been reached. If the light flashes when
			the battery is not in self-operating
			phase, this indicates that the battery
			status should be checked by an After-
			Sales representative.
			This orange light indicates an
			operating fault or an environment fault.
	I	O	However, the load continues to be
			supplied by the inverter 7 .

		This red light indicates:
		■ direct supply of power to the load by
I	O	AC input power via the "static bypass"
		3 due to inverter 7 shutdown
		(voluntary or following an overload or
		an internal fault);
		■ battery power is not available
		because the battery circuit breaker 4
		is in "off" position.

3.2

Comet installation and user manual: E-6761200XT/FA

Merlin Gerin by MGE UPS SYSTEMS