socomec DELPHYS MX 250, DELPHYS MX 400, DELPHYS MX 300, DELPHYS MX 500, DELPHYS MX 800 Operating Manual

DELPHYS MX

250 to 900 kVA

Operating manual

GB

3

ENGLISH

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

1. WARRANTY CERTIFICATE 4

2. FOREWORD 5

3. GENERAL 6

3. 1. Scope

6

3. 2. purpoSe And upS compoSition

6

3. 3. SAfety

7

3. 4. power Supply inputS

7

4. SINGLE UNITS WITH BYPASS 8

4. 1. StAndArd BASic SchemeS

8

4. 2. lAyout of SwitcheS

8

4. 3. mimic control pAnel

9

4. 4. meAning of the pictogrAmS

10

4. 5. menu Structure

11

4. 6. operAting A Single upS

12

5. MODULAR SYSTEMS 14

5. 1. BASic SchemeS

14

5. 2. lAyout of SwitcheS

15

5. 3. control pAnel

16

5. 4. meAning of the pictogrAmS

17

5. 5. Structure of the SyStem relAted menu

18

5. 6. Structure of the unit relAted menuS (unit)

19

5. 7. operAting the modulAr SyStem

20

6. CENTRAL BYPASS SYSTEMS 23

6. 1. StAndArd BASic Scheme

23

6. 2. lAyout of SwitcheS

23

6. 3. control pAnelS

24

6. 4. mimic pAnel of the centrAl BypASS cABinet

25

6. 5. mimic pAnel of A module

27

6. 6. operAting the centrAl BypASS SyStem

29

7. DESCRIPTION OF THE MENUS 32

7. 1. lcd diSplAy

32

7. 2. commentS concerning the menuS

33

7. 3. overloAd monitoring

40

7. 4. remAining BAck up time

40

TABLE OF CONTENTS

4

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

The warranty terms and conditions are stipulated in the offer, by default the following clauses apply.

The SOCOMEC UPS warranty is strictly limited to the product(s) and does not extend to equipment which may

be integrated with this/these product(s), nor the performance of such equipment.

The manufacturer guarantees its products to be free from manufacturing faults and defects in design, material

or workmanship, subject to the limits set forth below.

The manufacturer reserves the right to modify the delivery with a view to fullling these guarantees or to replace

defective parts. The manufacturer's warranty does not apply in the following cases:

• fault or defect in the design of parts added or supplied by the customer

• fault due to unforeseen circumstances or force majeure

• replacement or repair resulting from normal wear and tear of the modules or machinery

• damage caused by negligence, lack of proper maintenance or misuse of the products

• repair, modication, adjustment or replacement of parts undertaken by unqualied third parties or person-

nel without the express consent of SOCOMEC UPS.

The warranty period is twelve months commencing from the date of delivery of the product.

The repair, replacement or modication of the parts during the warranty period does not imply or justify any

extension of the warranty beyond the original period.

In order to establish a valid warranty claim, the purchaser must notify the manufacturer in writing immediately

after the discovery of any apparent material defects and provide any and all supporting evidence of the defects

at the latest within eight days before the date of expiry of the warranty.

Defective parts which have been returned and replaced free of charge shall become the property of SOCOMEC UPS.

The warranty is void if the purchaser has undertaken modications or repairs on the devices on his or her own

initiative and without the express consent of the manufacturer.

The manufacturer's responsibility is strictly limited to the obligations dened in this warranty (repair and replace-

ment) excluding any other right to claim compensation or indemnity.

Any import tax, duty, fee or charge of any nature whatsoever imposed by European regulations or those of an

importing country or of a transit country shall be paid by the purchaser.

1. WARRANTY CERTIFICATE

5

ENGLISH

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

We thank you for the trust you have in our Uninterruptible Power Systems.

This equipment is tted with up to date technology. Rectier and inverter subsets are provided with power semicon­ductors (IGBT) including a digital micro-controller.

Our equipment complies with standard IEC EN 62040-2 and 62040-1.

“This is a product for restricted sales distribution to informed partners. Installation restrictions or addi­tional measures may be needed to prevent disturbances”.

SAFETY REQUIREMENTS

Using conditions:

Do read carefully these operation instructions before using the UPS and comply with the safety notes mentioned.

Whatever the repairs, they must be made only by authorised staff, who have been suitably trained. It is recommend­ed that the ambient temperature and humidity of the UPS environment are maintained below the values specied by
the manufacturer.

This equipment meets the requirements of the European directives applied to this product. As a consequence it is
labelled as follows:

REGULATIONS CONCERNED WITH ENVIRONMENTAL ISSUES

Recycling of electrical products and equipment

Provision is made in European countries to break up and recycle materials making up the system. The various com­ponents must be disposed of in accordance with the legal provisions in force in the country where the system is
installed.

Battery wastes

Used batteries are considered as toxic wastes. It is therefore essential to entrust them solely and exclusively to rms
specialised in their recycling. They can not be treated with other industrial or household wastes, as set out in local
regulations in force.

2. FOREWORD

6

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

3. GENERAL

3. 1.

Scope

This document provides required information for operating DELPHYS MX systems. It describes the facilities of-

fered on the control panels:

• Scrolling through the menus displayed

• Load transfer onto the automatic and/or maintenance bypass

• System start up or shutdown

The operating instructions refer to the most frequently used congurations, i.e.:

• Single UPS’s with bypass

• Modular systems

• Central bypass systems

3. 2.

purpoSe And upS compoSition

DELPHYS MX provide:

• very low distortion and high power factor to the upstream power supply,

• voltage and frequency stability as well as continuity of supply to downstream loads –whatever the outages

or disturbances on the upstream power supply-.

The system is tted with double conversion VFI-SS-111 technology.

When the input power supply is present, the UPS acts as a stabilizer. In the event of a utility outage, it acts as

a source of electrical power. In such case, the required power is supplied by the battery, which is kept charged

when the mains is present.

DELPHYS MX provide three-phase sinusoidal output. The UPS is composed of:

• 1 fully controlled three-phase rectier of DBC type (Double Bridge Converter),

• 1 three-phase inverter of S.V.M. type (Space Vector Modulation),

• 1 static bypass to transfer the load automatically and without interruption to the bypass supply.

• 1 maintenance bypass, which allows a seamless load transfer to the mains during maintenance operations,

• 1 battery,

• 1 DC/DC converter for recharging the batteries,

• 1 control panel made up of a mimic panel, an 8-line display and an intuitive user interface.

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DELPHYS MX 250-900 - Ref.:

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3. GENERAL

3. 3.

SAfety

CAUTION

The equipment can only be switched on or used if the following conditions are fullled:

• electrical connections comply with the regulation in force (earth bonding, appropriate protections and cross-
section of cables)

• all means to comply with the protection index of the system are in place, such as side panels, doors,

glands, shields or whatever....

ADVICE

• Carefully follow the instructions described in this manual.

• All operations must only be carried out by personnel who are suitably trained and with authorized ac-
cess to restricted areas.

CAUTION

Do not forget that even when the load is stopped the unit is live:

• because of the mains voltage, the rectier and the bypass.

• because of the voltage generated by the battery and by the rectier.

• because of the load voltage when the maintenance bypass Q5 is closed and the bypass mains is present.

DANGER

Any operation inside the cabinets is to be completed:

• once the UPS is stopped and no longer live

• after 5 minutes, the time for the capacitors upstream of the rectier and inverter to discharge.

the residual voltage of the capacitors may still cause heavy electrical arcs after 5 minutes.

HAzARD INDICATION

While the UPS is operating, this label indicates that the parts are live and therefore the risk of electrical hazard.

All operations behind protection panels must only be carried out by personnel who are suitably trained.

3. 4.

power Supply inputS

Three power supply inputs are needed to operate the system:

• voltage on input 1 for the supply to the rectier,

• voltage on input 2 for the supply to the automatic bypass (depending on the system, inputs 1 and 2 can be common),

• the DC voltage for the battery (about 500Vdc).

Q1

Q4

Q3

Q5

Q20

X40

X10

X50

X20

MBP

ABP

BPREC

INV

DCC

BAT

*

Q1

Q4

Q3

Q5

Q20

X20

MBP

ABP

BPREC

INV

DCC

BAT

X40

X50

*

8

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

4. SINGLE UNITS WITH BYPASS

4. 1.

StAndArd BASic SchemeS

SEPARATED RECTIFIER AND BYPASS INPUTS COMMON RECTIFIER AND BYPASS INPUT

X40 = rectier input
X10 = bypass input
X50 = to the load
ABP = automatic bypass
MBP = maintenance bypass

BP = bypass facility
REC = rectier
INV = inverter
DCC = battery charger converter
* other protection upon request.

NOTE: in any case, see the technical details of the drawing on the inner side of the UPS door.

4. 2.

lAyout of SwitcheS

Q1: rectier input switch

Q4: automatic bypass switch

Q3: output switch

Q5: maintenance bypass switch

Note:
Q20: battery protection is located in the battery cabinet or battery
enclosure.

Q1 Q4 Q5 Q3

Q1

Q4

Q5

Q3

DELpHYS MX 250-500 kVA

DELpHYS MX 800-900 kVA

9

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ESC

ENTER

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

4. SINGLE UNITS WITH BYPASS

4. 3.

mimic control pAnel

The control panel is composed of:

1 mimic panel
1 eight-line LCD display (with up to 40 characters)
1 four-key intuitive user interface:

– 1 validation key (ENTER)
– 1 ESC key
– 2 scrolling keys (UP/DOWN)

1 luminous status bar

4. 3.1. Contrast setting

The display contrast is set by the factory. It is automatically adjusted according to the temperature of the technical
plant. No setting is required.

4. 3.2. Luminous status bar

The status bar provides immediate indication about the operating conditions of the system. The following information
can be displayed.

Green bar:

• the load is supplied via the inverter

• the load is supplied via the bypass path if in Eco-mode

Yellow bar: the load is supplied via the automatic / maintenance bypass

Yellow blinking bar: maintenance alarm or request for servicing.

Red bar: the load is not supplied.

Red blinking bar: the imminent shutdown alarm is given.

10

1

2

3

4

5

6

7

8

9

10

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

4. 4.

meAning of the pictogrAmS

Rectier and battery charger

Battery

Inverter

Output to the loads

Transfer impossible

Maintenance bypass

General alarm

4. 4.1. Mimic panel description

SYMBOLS GREEN YELLOW RED BLINKING

1 RECTIFIER INPUT Within tolerances Without tolerances

2 BYPASS INPUT Within tolerances Without tolerances

3 RECTIFIER ON Operating and alarm ON

4 BATTERY Charged discharging

Green: charging

Yellow: battery alarm

5 INVERTER ON Operating and alarm ON

6 LOAD ON INVERTER OK CS conducts

7 LOAD ON MAINS If Eco Mode ON

8 LOAD OUTPUT supplied Not supplied Red: imminent stop

9 TRANSFER Impossible

10 MAINTENANCE BYPASS Operating Yellow: maintenace Bypass alarm

11 GENERAL ALARM Alarm ON Yellow: communication problem

4. SINGLE UNITS WITH BYPASS

11

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

4. 5.

menu Structure

From the permanently displayed screen:

Load protected by inverter

Load rate:

0

50 100

120

Press "ENTER" to reach the various menus,
Select the menu with the UP or DOWN key,
Press "ENTER" to reach the various sub-menus,
Select the sub-menu with the UP or DOWN key,
Validate with the "ENTER" key.

LIST OF MENUS LIST OF SUB-MENUS



MEASUREMENTS

"ENTER" 

UPS SYSTEM OUTPUT

UPS SYSTEM OUTPUT POWER

BYPASS. – INVERTER MAINS

RECTIFIER - BATTERY

UPS COMMANDS

"ENTER" 

AUTOMATIC START UP

LOAD TO MAINS / LOAD TO INVERTER

TRANSFER TO MAINTENANCE BYPASS

OPERATING MODE

"ENTER" 

ECO MODE PROGRAMMING

TRANSFER TO NORMAL MODE

EVENT LOG

"ENTER" 

SYSTEM

BATTERY

"ENTER" 

BATTERY TEST INFORMATION

BATTERY TEST PROGRAMMING

BATTERY MEASUREMENTS

BATTERY MANUAL TEST

UPS GENERAL DATA

"ENTER" 

DIAGNOSTIC CODES

REFERENCES

STATUS

"ENTER" 

UPS SYSTEM STATUS

AUXILIARY INPUTS

SUBSET COMMAND

"ENTER" 

RECTIFIER ON / OFF

INVERTER ON / OFF

LOAD ON MAINS / LOAD ON INVERTER

SHUTDOWN UPS OUTPUT

CLOCK

"ENTER" 

PROGRAMMING

CONFIGURATION

"ENTER" 

LANGUAGE

BUZZER

ACCESS CODE

LOCAL / REMOTE

JBUS LINK

"ENTER" 

PROGRAMMING

Note: Controls are only displayed when available.

4. SINGLE UNITS WITH BYPASS

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

4. 6.

operAting A Single upS

The « UPS COMMANDS » menu is designed for the operation of the UPS.

Note: controls are only displayed when available.

4. 6.1. Starting up the UPS

Prior to any operation, please refer to the basic scheme of the system.

CONDITIONS TO bE COMpLETED:

• - The system is live,

• - wait for the control panels to light up.

COMpLY WITH THE FOLLOWING CHRONOLOGY pROCEDURE:

The UPS is started from the "UPS COMMANDS" menu and the "AUTOMATIC START UP" sub-menu through an
interactive procedure. Just follow the instructions displayed and validate with the "ENTER" key.

Display for the automatic start up control:

UPS COMMANDS: AUTOMATIC START UP

CONFIRM THE START UP WITH UPS

SYSTEM OUTPUT SWITCHING ON

Cancel Validate

ESC ENTER

4. 6.2. Load transfer from inverter to mains

The load transfer is achieved from the "UPS COMMANDS" menu and the "LOAD TO MAINS" submenu, which enables
the seamless switching from the inverter source to the non protected bypass source. Validate with the "ENTER" key.

Display for the LOAD TO MAINS control:

SUBSET COMMAND: LOAD TO MAINS

CONFIRM TRANSFER

TO AUTOMATIC BYPASS

Cancel Validate

ESC ENTER

4. SINGLE UNITS WITH BYPASS

13

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

4. 6.3. Load transfer from mains to inverter

The load transfer is achieved from the "UPS COMMANDS" menu and the "LOAD TO INVERTER" sub-menu, which
enables the seamless switching of the load from the bypass source to the protected inverter source. Validate with
the "ENTER" key

Display for the LOAD TO INVERTER control:

SUBSET COMMAND: LOAD TO INVERTER

CONFIRM TRANSFER TO INVERTER

Cancel Validate

ESC ENTER

4. 6.4. UPS shutdown with transfer to the maintenance bypass

The Maintenance bypass is for ensuring supply to the load, while the system is stopped for servicing reasons, for
instance.

The transfer is achieved from the "UPS COMMANDS" menu and the "TRANSFER TO MAINTENANCE BYP" sub­menu. This is achieved through an interactive procedure. Just follow the instructions displayed and validate when
"ENTER" is displayed.

Display for the "TRANSFER TO MAINTENANCE BYP" control:

UPS COMMANDS: TRANSFER TO M. BYPASS

CONFIRM TRANSFER

TO MAINTENANCE BYPASS

Cancel Validate

ESC ENTER

4. 6.5. Operating Mode

Note: the operating mode is displayed only if the conguration is available. Seek advice to the CIM department.

The UPS can either operate in normal or Eco mode. The mode can be selected manually or programmed to be made
automatically.

Mode normal: the load is supplied by the inverter. Should a problem occur on the rectier-inverter path, the load is

automatically transferred to mains.

Eco mode: the load is supplied by the bypass input. Should a problem occur on the bypass path, the load is

automatically transferred to inverter.

4. SINGLE UNITS WITH BYPASS

Q1

Q4

Q3

Q5

Q20

X20

MBP

ABP

BPREC

INV

DCC

BAT

X50

Q1

Q4

Q3

Q5

Q20

X20

MBP

ABP

BPREC

INV

DCC

BAT

X40

X10

X10

*

*

X50

Q1

Q4

Q3

Q20

X20

ABP

BPREC

INV

DCC

BAT

X40

X10

Q1

Q4

Q3

Q20

X20

ABP

BPREC

INV

DCC

BAT

X10

MBP Q5

*

*

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

5. MODULAR SYSTEMS

5. 1.

BASic SchemeS

Modular systems can include up to six UPS units.

5. 1.1. Modular systems with two redundant UPS units

X10: rectier input
X40: bypass input
X50: to the load
X20: battery connection
REC: rectier
INV: inverter
BAT: battery
DCC: battery charger converter
BP: bypass facility
ABP: automatic bypass
MBP: maintenance bypass

* other protection upon request.

NOTE: in such a conguration each UPS unit has its
own maintenance bypass.

X10: rectier input
X40: bypass input
X50: to the load
X20: battery connection
REC: rectier
INV: inverter
BAT: battery
DCC: battery charger converter
BP: bypass facility
ABP: automatic bypass
MBP: maintenance bypass

* other protection upon request.

NOTE: in such a conguration, the system is tted
with an EXTERNAL maintenance bypass.

NOTE: in any case, see the technical details of the drawing.

5. 1.2. Modular systems with two non redundant UPS units

NOTE: in any case, see the technical details of the drawing on the inner side of the UPS door.

Q1

Q4

Q3

Q20

X20

ABP

BPREC

INV

DCC

BAT

X50

Q1

Q4

Q3

Q20

X20

ABP

BPREC

INV

DCC

BAT

X40

X10

X10

Q1

Q4

Q3

Q20

X20

ABP

BPREC

INV

DCC

BAT

X10

MBP Q5

*

*

*

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

5. MODULAR SYSTEMS

NOTE: in any case, see the technical details of the diagram on the inner side of the UPS door.

5. 1.3. Modular systems with three UPS units or more

X10: rectier input
X40: bypass input
X50: to the load
X20: battery connection
REC: rectier
INV: inverter
BAT: battery
DCC: battery charger converter
BP: bypass facility
ABP: automatic bypass
MBP: maintenance bypass

* other protection upon request.

NOTE: in such a conguration, the system is tted
with an EXTERNAL maintenance bypass.

5. 2.

lAyout of SwitcheS

Description of switches:

Q1: rectier input switch
Q4: automatic bypass switch
Q3: output switch
Q5: maintenance bypass switch

Note:
Q20: battery protection is located in the battery cabinet or
battery enclosure.

Q1 Q4 Q5 Q3

Q1

Q4

Q5

Q3

DELpHYS MX 250-500 kVA

DELpHYS MX 800-900 kVA

16

ESC

ENTER

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

5. 3.

control pAnel

The control panel is composed of:

• 1 mimic panel

• 1 eight-line LCD display (with up to 40 char-

acters)

• 1 four-key intuitive user interface:
– 1 validation key (ENTER)
– 1 ESC key
– 2 scrolling keys (UP/DOWN)

• 1 luminous status bar

5. 3.1. Contrast setting

The display contrast is set by the factory. It is automatically adjusted according to the temperature of the technical
plant. No setting is required.

5. 3.2. Description of the luminous status bar

Green bar:

• the load is supplied via the inverter

• the load is supplied via the bypass path if in Eco-mode

Yellow bar: the load is supplied via the automatic / maintenance bypass

Yellow blinking bar: maintenance alarm or request for servicing.

Red bar: the load is not supplied.

Red blinking bar: the imminent shutdown alarm is given.

OFF: UPS unit isolated or not available.

5. MODULAR SYSTEMS

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1

2

3

4

5

6

7

8

9

10

11

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

5. 4.

meAning of the pictogrAmS

Rectier and battery charger

Battery

Inverter

Output to the loads

Transfer impossible

Maintenance bypass

General alarm

5. 4.1. Mimic panel description

SYMBOLS GREEN YELLOW RED BLINKING

1 RECTIFIER INPUT Within tolerances Without tolerances

2 BYPASS INPUT Within tolerances Without tolerances

3 RECTIFIER ON Operating and alarm ON

4 BATTERY Charged Discharged

Green: charging

Yellow: battery alarm

5 INVERTER ON Operating and alarm ON

6 LOAD ON INVERTER OK Eco-Mode ON

7 LOAD ON MAINS If Eco Mode ON CS conducts

8 LOAD OUTPUT supplied Not supplied Red: imminent stop

9 TRANSFER Impossible

10 MAINTENANCE BYPASS Operating Yellow: maintenace Bypass alarm

11 GENERAL ALARM Alarm ON Yellow: communication problem

5. MODULAR SYSTEMS

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

5. 5.

Structure of the SyStem relAted menu

It is intended for operating the whole system, i.e. all the UPS units.

Display information about

UPS SYSTEM

UNIT

Cancel Validate

ESC ENTER

Press "ENTER" to reach the various menus,
Select the menu with the UP or DOWN key,
Press "ENTER" to reach the various sub-menus,
Select the sub-menu with the UP or DOWN key,
Validate with the "ENTER" key.

LIST OF MENUS LIST OF SUB-MENUS



MEASUREMENTS

"ENTER" 

UPS SYSTEM OUTPUT

UPS SYSTEM OUTPUT POWER

SYSTEM BYPASS SUPPLY

UPS COMMANDS

"ENTER" 

UPS AUTOMATIC STARTUP

LOAD TO MAINS / LOAD TO INVERTER

TRANSFER TO MAINTENANCE BYPASS

OPERATING MODE

"ENTER" 

ECO MODE PROGRAMMING

TRANSFER TO NORMAL MODE

EVENT LOG

"ENTER" 

UPS

STATUS

"ENTER" 

UPS SYSTEM STATUS

CLOCK

"ENTER" 

PROGRAMMING

CONFIGURATION

"ENTER" 

LANGUAGE

BUZZER

ACCESS CODE

LOCAL / REMOTE



JBUS LINK (if available)

"ENTER" 

PROGRAMMING

Note: Controls are only displayed when available.

5. MODULAR SYSTEMS

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OPMDELMX1010-GB_01

5. 6.

Structure of the unit relAted menuS (unit)

It is only for operating the related unit.

Display information about

UPS SYSTEM

UNIT

Cancel Validate

ESC ENTER

Press "ENTER" to reach the various menus,
Select the menu with the UP

or DOWN key,

Press "ENTER" to reach the various sub-menus,
Select the sub-menu with the UP

or DOWN key,

Validate with the "ENTER" key.

LIST OF MENUS LIST OF SUB-MENUS



MEASUREMENTS

"ENTER" 

UPS UNIT OUTPUT

UPS UNIT OUTPUT POWER

INVERTER - BYPASS MAINS

RECTIFIER - BATTERY

UNIT COMMANDS

"ENTER" 

UPS AUTOMATIC STARTUP

UNIT COUPLING / UNCOUPLING

EVENT LOG

"ENTER" 

UNIT

BATTERY

"ENTER" 

BATTERY TEST INFORMATION

BATTERY TEST PROGRAMMING

BATTERY MEASUREMENTS

BATTERY MANUAL TEST

UNIT DATA

"ENTER" 

DIAGNOSTIC CODES

REFERENCES

STATUS

"ENTER" 

UPS UNIT STATUS

AUXILIARY INPUTS

SUBSET COMMANDS

"ENTER" 

RECTIFIER ON / OFF

INVERTER ON / OFF

LOAD TO MAINS / LOAD TO INVERTER



UNIT COUPLING / UNCOUPLING

Note: Controls are only displayed when available.

5. MODULAR SYSTEMS

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

5. 7.

operAting the modulAr SyStem

Each unit has it’s own control panel. The menu structure is divided into two distinctive parts (Please, refer to sections

5.5 and 5.6)

• the second one is for operating the system (System).

• one is intended for operating the unit (Unit)

Note: controls are only displayed when available.

5. 7.1. Starting up the modular system

Prior to any operation, please refer to the basic scheme of the system.

CONDITIONS TO bE COMpLETED:

• the system is live on the input of each UPS unit,

• the battery circuit of each UPS unit is open.

• wait for all the control panels to light up,

ON THE CONTROL pANEL OF ONE OF THE UNIT, SELECT:

• menu "UPS SYSTEM",

• menu " UPS COMMANDS"

• and submenu "AUTOMATIC STARTUP".

The startup of all the units is run through an interactive procedure. Just follow the instructions displayed and validate
with the "ENTER" key. Pressing the ESC key cancels the action.

At the end of this stage, the load is protected by the UPS units.

The display indicates the end of the automatic start up procedure:

Load protected by inverter

1 2 3 4 5 6

Load rate:

•

0

50 100

120

UNIT 2

5. 7.2. Load transfer from inverter to mains

In the control panel of one of the unit, select:

• menu "UPS SYSTEM",

• menu "UPS COMMANDS"

• and submenu "LOAD TO MAINS".

Display for the "LOAD TO MAINS" control

UPS COMMANDS: LOAD TO MAINS

CONFIRM TRANSFER TO

AUTOMATIC BYPASS

Cancel Validate

ESC ENTER

Validate pressing the ENTER key.

Number of operating units

5. MODULAR SYSTEMS

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

5. 7.3. Load transfer from mains to inverter

IN THE CONTROL pANEL OF ONE OF THE UNIT, SELECT:

- menu "UPS SYSTEM",

- menu "UPS COMMANDS"

- and submenu "LOAD TO INVERTER".

Display for the "LOAD TO INVERTER" control

UPS COMMANDS: LOAD TO INVERTER

CONFIRM TRANSFER TO INVERTER

Cancel Validate

ESC ENTER

Validate pressing the ENTER key.

5. 7.4. Switching to maintenance bypass - shutdown of the system

pURpOSE:

The Maintenance bypass is for ensuring supply to the load, while the system is stopped for servicing, for instance.

COMpLY WITH THE FOLLOWING pROCEDURE:

In the control panel of one of the unit, select:

- menu "UPS SYSTEM",

- menu "UPS COMMANDS"

- menu "TRANSFER TO MAINTENANCE BYPASS".
The startup is run through an interactive procedure. Just follow the instructions displayed and validate with the "ENTER" key.

Display for "TRANSFER TO MAINTENANCE BYP"

UPS commands: to MAINTENANCE BYPASS

CONFIRM LOAD TRANSFER

TO MAINTENANCE BYPASS

Cancel Validate

ESC ENTER

NOTE: when the process is completed, all the UPS units are stopped.

Do not forget that even when the loads are stopped the units are live:

- because of the mains voltage to the rectier and the bypass.

- because of the residual voltage of the capacitors.

- because of the load voltage when the maintenance bypass Q5 is closed and the bypass mains is present.

5. MODULAR SYSTEMS

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5. 7.5. System with two redundant units

In a system with two redundant units, only one maintenance bypass can be closed.

5. 7.6. System with two non redundant units or more than two parallel units

In such a system, the maintenance bypass is common to the whole system.

5. 7.7. Uncoupling of a unit

Unit uncoupling can only be achieved if the system is redundant, meaning that it can supply all the energy
required to the load with one unit disconnected.

The uncoupling of a unit is to be made from its control panel by selecting:

• - the menu "UPS UNIT",

• - the menu "UNIT COMMANDS"

• - the submenu "UNIT UNCOUPLING",

At this point the UPS unit is uncoupled but still operating:

• Open switch Q3 in the appropriate unit to isolate it from the system.

Note: At this point the UPS unit can be autonomously operated.

5. 7.8. Shutdown of a unit

(The unit has been previously uncoupled - See section 5.7.7)

Shutdown the unit in the following chronology order:

• select the menu "SUBSET COMMAND"

• select the submenu "INVERTER SHUTDOWN",

• select the submenu "RECTIFIER SHUTDOWN"

At this point:

• - open battery protection Q20,

• - open switch Q4

• - open switch Q1.

Do not forget that even when the load is stopped the unit is live:

- because of the mains voltage to the rectier and the bypass.

- because of the residual voltage of the capacitors.

- because of the load voltage coming from the common busbar (downstream of Q3).

5. 7.9. Unit switching on or coupling to the common busbar

CONDITIONS TO bE COMpLETED:

• The system is live upstream of the UPS unit

• wait for the control panel to light up,

IN THE CONTROL pANEL OF THE ADEQUATE UNIT, SUCCESSIVELY SELECT:

• the menu "UPS UNIT"

• the menu "UNIT COMMANDS"

• the submenu "AUTOMATIC STARTUP".

The automatic startup is run through an interactive procedure. Just follow the instructions displayed and validate with
the "ENTER" key.

Note: at the end of the start up sequence the unit is coupled to the common busbar and Q3 is closed.

5. MODULAR SYSTEMS

Q1

Q4

Q3

Q5

Q1

Q1

Q20

MBP

ABP

BP

X50

X40

X10

REC INV

DCC

X20

Q20

X20

Q20

X20

DCC

DCC

X10

REC INV

X10

REC

INV

*

*

*

Q4

Q5

Q3

Q1

Q2

23

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6. CENTRAL BYPASS SYSTEMS

6. 1.

StAndArd BASic Scheme

Central bypass systems can include up to six modules in parallel.

NOTE: in any case, see the technical details of the drawing.

X10: rectier input
X40: bypass input
X50: to the load
X20: battery connection
REC: rectier
INV: inverter
BAT: battery
DCC: battery charger converter
BP: bypass facility
ABP: automatic bypass
MBP: maintenance bypass

* other protection upon request.

6. 2.

lAyout of SwitcheS

UPS UNIT BYPASS CABINET

Q1: Input rectier switch
Q2: Unit output switch
Q20: Battery protection in the battery enclosure or cabinet

Q4: Input automatic bypass switch
Q3: Output switch to the load
Q5: Maintenance bypass switch

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6. 3.

control pAnelS

CONTROL PANEL OF THE MODULE

Each control panel is composed of:

• 1 mimic panel

• 1 eight-line LCD display (with up to 40 charac-

ters)

• 1 four-key intuitive user interface:
– 1 validation key (ENTER)
– 1 ESC key
– 2 scrolling keys (UP/DOWN)

• 1 luminous status bar.

The display contrast is set by the factory. It is auto­matically adjusted according to the temperature of the
technical plant. No setting is required.

CONTROL PANEL OF THE BYPASS CABINET

6. CENTRAL BYPASS SYSTEMS

1

25

ENGLISH

2

1

4

5

3

6

3

4

5

7

6

1

2

DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

6. 4.

mimic pAnel of the centrAl BypASS cABinet

Modules 1 to 6

General output to the loads

Transfer impossible

Maintenance bypass

General alarm

6. 4.1. Mimic Panel Description

SYMBOLS GREEN YELLOW RED BLINKING

MODULES 1 to 6 connected Connected and alarm ON

1.BYPASS INPUT Within tolerances Without tolerances

2.LOAD ON INVERTER OK Eco-mode ON

3.LOAD ON MAINS Eco-mode ON OK

4.GENERAL OUTPUT
TO THE LOAD

supplied

Load not

supplied

Red: imminent shutdown of

the system

5.LOAD TRANSFER impossible

6.MAINTENANCE BYP ON Yellow: Maint. byp alarm

7.GENERAL ALARM At least one alarm ON Yellow: communication error

6. 4.2. Description of the luminous status bar on the central bypass cabinet

Green bar:

- the loads are protected by the inverters

- the loads are supplied via the bypass path if in Eco-mode

- the system operates on the "Energy Saver" mode

(i.e. the number modules ON depends on the energy required)

Yellow bar:

- the loads are supplied via the bypass mains

- the loads are supplied via the maintenance bypass

Yellow blinking bar: - the general alarm is given or request for servicing

Red bar: - the loads are not supplied

Red blinking bar: - the imminent shutdown alarm is given and the loads will shortly be disconnected.

6. CENTRAL BYPASS SYSTEMS

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6. 4.3. Structure of the central bypass cabinet menu

Load protected by inverter

1 2 3 4 5 6

Load rate:

Press "ENTER" to reach the various menus,
Select the menu with the UP

or DOWN key,

Press "ENTER" to reach the various sub-menus,
Select the sub-menu with the UP or DOWN key,
Validate with the "ENTER" key.

LIST OF MENUS LIST OF SUB-MENUS



MEASUREMENTS

"ENTER" 

UPS SYSTEM GENERAL OUTPUT

UPS SYSTEM OUTPUT POWER

INVERTER / BYPASS MAINS

UPS COMMANDS

"ENTER" 

UPS AUTOMATIC START UP

LOAD TO MAINS / LOAD TO INVERTER

TRANSFER TO MAINTENANCE BYPASS

EVENT LOG

"ENTER" 

UPS

UNIT

BYPASS DATA

"ENTER" 

DIAGNOSTIC CODES

REFERENCES

STATUS

"ENTER" 

UPS GENERAL STATUS

SUBSET COMMAND

"ENTER" 

LOAD TO MAINS / LOAD TO INVERTER

SHUTDOWN UPS OUTPUT

CLOCK

"ENTER" 

PROGRAMMING

CONFIGURATION

"ENTER" 

LANGUAGE

BUZZER

ACCESS CODE

LOCAL / REMOTE

JBUS LINK

"ENTER" 

PROGRAMMING

Note: Controls are only displayed when available.

0

50 100

120

6. CENTRAL BYPASS SYSTEMS

27

ENGLISH

1

2 3

4

5

6

7

DELPHYS MX 250-900 - Ref.:

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6. 5.

mimic pAnel of A module

Rectier and battery charger

Battery

Inverter Modules 1 to 6

Output to the loads

General alarm

6. 5.1. Mimic Panel Description

SYMBOLS GREEN YELLOW RED BLINKING

1.RECTIFIER INPUT Within tolerances Without tolerances

2.RECTIFIER ON ON and Alarm ON

3.BATTERY Charged discharging

Green: charging

Yellow: battery alarm

4.INVERTER ON ON and Alarm ON

5.OUTPUT SWITCH closed Closed and Eco-Mode ON

6.OUTPUT TO THE
COMMON BUSBAR

Module

connected

Module not

connected

Red: imminent stop

7.GENERAL ALARM General Alarm ON Communication error

6. 5.2. Description of the luminous status bar on a module

Green bar: the module is connected to the common busbar

Yellow bar: the load is supplied via the automatic or the maintenance bypass

Yellow blinking bar: maintenance alarm or request for servicing

Red bar: the load is not supplied

Red blinking bar: the imminent shutdown alarm is given for the module

OFF Module isolated

6. CENTRAL BYPASS SYSTEMS

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6. 5.3. Structure of the Unit menus

Load protected by inverter

1 2 3 4 5 6

Load rate:

Module 1

Press "ENTER" to reach the various menus,
Select the menu with the UP

or DOWN key,

Press "ENTER" to reach the various sub-menus,
Select the sub-menu with the UP or DOWN key,
Validate with the "ENTER" key.

LIST OF MENUS LIST OF SUB-MENUS



MEASUREMENTS

"ENTER" 

UPS UNIT OUTPUT

UPS UNIT OUTPUT POWER

INVERTER - BYPASS MAINS

RECTIFIER - BATTERY

UNIT COMMANDS

"ENTER" 

UNIT AUTOMATIC STARTUP

UNIT COUPLING / UNCOUPLING

EVENT LOG

"ENTER" 

UNIT

BATTERY

"ENTER" 

BATTERY TEST INFORMATION

BATTERY TEST PROGRAMMING

BATTERY MEASUREMENTS

BATTERY MANUAL TEST

UNIT DATA

"ENTER" 

DIAGNOSTIC CODES

UPS REFERENCES

STATUS

"ENTER" 

UPS UNIT STATUS

AUXILIARY INPUTS

SUBSET COMMANDS

"ENTER" 

RECTIFIER ON / OFF

INVERTER ON / OFF

LOAD TO MAINS / LOAD TO INVERTER



UNIT COUPLING / UNCOUPLING

Note: Controls are only displayed when available.

0

50 100

120

6. CENTRAL BYPASS SYSTEMS

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6. 6.

operAting the centrAl BypASS SyStem

6. 6.1. Using

The central bypass cabinet has a control panel intended for the operation of the system. The control panel of the
modules is only dedicated to the module operation.

6. 6.2. Preliminary conditions

• Q4, Q5 and Q3 in the central bypass cabinet are open,

• Q1, Q2 and Q20 of each module are open.

6. 6.3. Starting up the system

Prior to any operation, please refer to the basic scheme of the system.

CONDITIONS TO bE COMpLETED:

• the input of the system is live

• wait for the control panels to light up.

IN THE CENTRAL bYpASS CAbINET:

The UPS is started from the menu "UPS commands /automatic start up" through an interactive procedure. Just follow the
instructions displayed and validate with the "ENTER" key. The action can be interrupted by pressing the key "ESC".

The display indicates the end of the automatic start up procedure:

Load protected by inverter

1 2 3 4 5 6

Load rate:

0

50 100

120

Number of operating units

6. CENTRAL BYPASS SYSTEMS

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6. 6.4. Load transfer from inverter to mains

IN THE CENTRAL bYpASS CAbINET:

The seamless transfer command from inverter to mains can be achieved from the menu "UPS COMMANDS" and the
submenu "LOAD TO MAINS". Validate with the "ENTER" key.

Display for the "LOAD TO MAINS" control

UPS COMMANDS: LOAD TO MAINS

CONFIRM TRANSFER TO AUTOMATIC BYP

Cancel Validate

ESC ENTER

6. 6.5. Load transfer from mains to inverter

IN THE CENTRAL bYpASS CAbINET:

The seamless load transfer from mains to inverter can be achieved in the menu "UPS COMMANDS" and the sub­menu "LOAD TO INVERTER". Validate with the "ENTER" key.

Display for the "LOAD TO MAINS" control

UPS COMMANDS: LOAD TO INVERTER

CONFIRM TRANSFER TO INVERTER

Cancel Validate

ESC ENTER

6. 6.6. UPS shutdown with switching to the maintenance bypass

IN THE CENTRAL bYpASS CAbINET:

The transfer of the system to maintenance bypass should be carried out by selecting the menu "UPS COMMANDS"
and the submenu "TRANSFER TO MAINTENANCE BYPASS". This control is run through an interactive procedure.
Just follow the instructions displayed and validate with the "ENTER" key.

IN EACH MODULE:

- follow the instructions given on the control panel.

- successively shutdown the rectiers (open Q1).

Note: at this stage the load is supplied by the maintenance bypass (no protection) and the modules are stopped.

6. CENTRAL BYPASS SYSTEMS

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6. 6.7. Operating a module of the system

Module uncoupling can only be achieved if the system is redundant, meaning that it can supply all the
energy required to the load with one module disconnected.

UNCOUpLING OF A MODULE

The uncoupling of a module is to be made from its control panel by selecting:

• the menu "UNIT COMMANDS"

• the submenu "UNIT UNCOUPLING" ("cancel" is being displayed)

• press key to reach the module uncoupling option

• press key ENTER to conrm the request

• open switch Q2

SHUTDOWN OF A MODULE

In the control panel of the relevant module:

• select the menu "SUBSET COMMAND"

• select the submenu "INVERTER OFF" and conrm with the ENTER key

• select the submenu "RECTIFIER OFF" and conrm with the ENTER key

• open Q1 and Q20 (battery protection),

Note 1: operations are identical for all modules.
Note 2: in case of a redundant system, the command is inhibited if the module uncoupling causes the loss of redun­dancy, and the corresponding alarm is displayed on the central bypass cabinet.

Do not forget that even when the load is stopped the module is live:

• because of the input voltage upstream of Q1,

• because of the load voltage coming from the common busbar downstream of Q2,

• because of the continuous voltage generated by the capacitors. The safety level is only reached after

5 minutes.

STARTING AND COUpLING A MODULE

The startup of the modules is run through an interactive procedure.

In the control panel of the adequate module:

• select the menu "UNIT COMMANDS"

• select the submenu " UNIT AUTOMATIC STARTUP"

• conrm with the ENTER key

• comply with the instructions displayed i.e.:
– close Q1 to supply the rectier
– validate startup with the battery before closing Q20

• close Q2.

Note 1: operations are identical for all modules.
At this point, the module is connected to the common busbar.

6. CENTRAL BYPASS SYSTEMS

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7. DESCRIPTION OF THE MENUS

7. 1.

lcd diSplAy

Various screens can be displayed:

THE pERMANENT DISpLAY bY DEFAULT

Load protected by inverter

Load rate:

0

50 100

120

A)THE LOAD SUppLY SOURCE IS DISpLAYED, I.E.:

• LOAD PROTECTED BY INVERTER,

• LOAD SUPPLIED BY AUTOMATIC BYPASS,

• LOAD SUPPLIED BY MAINTENANCE BYPASS,

• OPERATING ON BATTERY,

• LOAD OFF,

b)THE ACTUAL ALARMS ARE DISpLAYED AS LONG AS THEY HAVE NOT bEEN RESET bY THE OpERATOR (OR AUTO-RESET).

C) T

HE LOAD RATE IS DISpLAYED AS LONG AS LESS THAN 4 ALARMS ARE NOT ACTIVATED.

Note: if the "

" icon is displayed, some maintenance has to be planned.

THE MENU SCREEN

MEASUREMENTS AUTOMATIC START UP

UPS COMMANDS LOAD TO MAINS / INVERTER

OPERATING MODE TRANSFER TO MAINTENANCE BYP

EVENT LOG

D) THE MENUS AVAILAbLE ARE DISpLAYED.

E) T

HE SUbMENU RELATED TO THE SELECTED MENU IS HIGHLIGHTED ON THE DISpLAY.

Note: the remaining displays are described in the corresponding paragraphs.

A

Area D Area E

B

C

}

}
}

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7. DESCRIPTION OF THE MENUS

7. 2.

commentS concerning the menuS

7. 2.1. Menu measurements

This menu displays the following system measurements:

• general measurements of the UPS

• output power of the UPS,

• inverter and bypass measurements,

• rectier measurements.

7. 2.2. Menu UPS commands

The UPS commands menu enables (Please refer to the sections related to the menu structure):

• the automatic start up (interactive procedure)

• the transfer from the inverter to the mains (and vice-versa),

• the transfer to the maintenance bypass (interactive procedure),

Note: in the event of a modular system, the UPS COMMANDS menu is common to all the modules connected. The
control can be performed on whatever module.

7. 2.3. Menu Event log

Principle:
The UPS has a memory enabling the record and date all alarms, status or commands that could arise during opera­tion. This memory is saved utilising a separate supply.
The log can record up to 500 items according to the FIFO principle (First In - First out). When the log is lled up, the
latest information recorded overwrites the earliest one.

Use:
To improve the user-friendliness, the latest records of the relevant date are displayed over six lines. Press key
or to respectively scroll up to previous line or scroll down to next line. The "ENTER" key provides access to the
previous days.

7. 2.4. Battery

The battery test is for controlling the battery capacity to supply energy. The battery test can either be made manually
or automatically.

bATTERY TEST INFORMATION

This menu provides information to show:

• the result of the latest battery test (OK, failed or aborted),

• date and time of the latest battery test,

• date and time of the next battery test. If the test is not scheduled, "----" is displayed instead of the date.

TEST pROGRAMMING

The battery test can be made automatic from the control panel by setting the frequency, the day of the week and the time.

BATTERY: BATTERY TEST PROGRAMMING

BATTERY TEST: inactive

PROGRAMMED ON: Friday at 20:00

EVERY: 8 weeks

34

DELPHYS MX 250-900 - Ref.:

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bATTERY MEASUREMENTS

The following measurements can be displayed:

• Battery voltage,

• Battery current (minus sign in front of the value means the battery is discharging)

• Battery temperature,

• Load rate.

BATTERY MEASUREMENTS

Vdc = 450 V I batt = - 56 A

Load rate :

7. 2.5. UPS system data

DIAGNOSTIC CODES

UPS SYSTEM DATA: DIAGNOSTIC CODES

User Status Alarms

Adv Rect 120000456087 000000000

Adv Byp 000657003300 000007650

Adv Inv 000765876000 006549800

Adv Hmi 076431789700 054687900

Adv Com 000006757400 000007650

In case of UPS failure, the customer can transmit these codes to the CIM DEPARTMENT for complete diagnostic.

UpS REFERENCES

This menu displays the following module information:

- module number,

- serial number,

- power in kVA.

7. 2.6. Status menu

UpS SYSTEM STATUS

The activation or de-activation of each state is conrmed by YES or NO.
By means of the up and down keys, you can scroll the list.
Symbol is not displayed at the beginning of the list and is not displayed at the end.

7. DESCRIPTION OF THE MENUS

35

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

List of STATUS

Wording

Rectier ON

Rectier input supply out of tolerances

Charger ON

Boost charge

Commissioning charge

Synchronisation reference on bypass input

Synchronisation reference on ACS

Battery charging

Battery charged

Battery test aborted

Battery test running

Inverter ON

ACS functioning forced

Output on inverter

Output on automatic bypass

Output not supplied

Output on maintenance bypass

In eco mode

Transfer to eco mode

Bypass input supply out of tolerances

Bypass input absent

Inverter switch ON

Bypass switch ON

Unit available

Unit isolated

Q2 closed

Q3 closed

Maintenance bypass Q5 closed

General maintenance bypass closed

Q21 …..Q22 closed

ESD activated

Input supplied by EmSet (emergency set)

Maintenance mode active

Load protected by inverter

Load on automatic bypass

Load OFF

Load on maintenance bypass

Automatic start in progress

Transfer to maintenance bypass

Energy saver activated (parallel system with central bypass)

Unit in standby mode

Automatic start forced

Energy saver deactivated (parallel system with central bypass)

Local/remote control

Auxiliary inputs 1 to 12

7. DESCRIPTION OF THE MENUS

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DELPHYS MX 250-900 - Ref.:

OPMDELMX1010-GB_01

7. 2.7. Clock

The UPS is tted with a clock that enables the time and date of every event to be known.
The clock can only be set from the control panel.

PROGRAMMING

FRIDAY 09:09:21

30/05/2005

CLOCK

↓

The "ENTER" key enables to select the eld to be modied.
The "ESC" key enables to return to the previous eld.
The scrolling keys

or enable to change the parameters of the selected eld.

7. 2.8. Configuration

LANGUAGE

Two languages are available. on the control panel.

CONFIGURATION:LANGUAGE



Language: FRENCH



Cancel Validate

ESC ENTER

The scrolling keys

or enable to select the appropriate language.

Note: other languages can be downloaded by the Servicing Department.

bUzzER

The buzzer can be activated or de-activated when the alarm appears by means of the scrolling keys or .
The buzzer is activated by default.

CONFIGURATION:BUZZER



Buzzer: YES



Cancel Validate

ESC ENTER

7. DESCRIPTION OF THE MENUS

37

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DELPHYS MX 250-900 - Ref.:

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ACCESS CODE

The access code enables to lock the access to the following menus:

• UPS COMMANDS,

• OPERATING MODE,

• BATTERY / BATT TEST PROGRAMMING,

• SUBSET COMMAND,

• CLOCK,

• CONFIGURATION,

• JBUS LINK.

CONFIGURATION: ACCESS CODE

Type new access code:??????

This code can only be set from the control panel. It can contain up to 6 characters from "A" to "Z" and "0" to "9".

Keys

or enable to select the character.

The "ENTER" key is for entering the character selected.

The "ESC" key enables to return to the previous eld.

For coding with less than 6 characters, the ENTER key needs to be pressed up to the sixth character, and once

more for validation.

CONFIGURATION: ACCESS CODE

CONFIRM NEW

ACCESS CODE: ??????

Cancel Validate

ESC ENTER

Note: the access code is only activated when the display is in standby, i.e. after 4 minutes without action on any key.

7. DESCRIPTION OF THE MENUS

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DELPHYS MX 250-900 - Ref.:

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LOCAL / REMOTE

The UPS can be connected to a remote equipment. By default the control panel has the master function while the
remote control has the slave function (all controls are inhibited). Through this menu, controls can be sent from the

remote equipment.

CONFIGURATION:LOCAL-REMOTE



Switch to: LOCAL MONITORING



Cancel Validate

ESC ENTER

7. 2.9. JBUS link

Note: the JBUS link menu is only displayed if the setting is available on the UPS.

Conguration parameters are:

• the baudrate (1200 to 19200),

• the parity (none, even, odd),

• the slave number (001 to 255).

PROGRAMMING 1

baudrate: 19200

Parity: NONE

Slave: 001

JBUS LINK ↓

If a second JBUS link is available, the corresponding screen is automatically displayed after completing the setting
of the rst JBUS link.

7. DESCRIPTION OF THE MENUS

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7. 2.10. List of alarms

DISpLAY OF ACTIVATED ALARMS

When an alarm is activated, the description is displayed and an audible signal is given.

RESETTING AN ALARM

The alarms can be reset by means of the "ENTER" key. Thus, the audible alarm is silenced, but its description re­mains displayed as long as the alarm is activated. If several alarms are displayed, each of them needs to be silenced
individually.

LIST OF ALARMS FOR SINGLE UNITS AND MODULAR SYSTEMS

Wording

Rectier critical alarm

Rectier preventive alarm

Charger general alarm

Battery alarm

Battery room alarm

Battery test failed

Battery circuit open

Operating on battery

Battery autonomy end

Battery discharged

Inverter critical alarm

Inverter preventive alarm

Bypass critical alarm

Bypass preventive alarm

Manual/automatic transfer disabled

Automatic transfer disabled

Maintenance bypass alarm

Backfeed protection open

Unit imminent stop

Unit overload

Insufcient resources

Synchronisation reference ACS absent

Control preventive alarm

Control alarm

Internal temperature alarm

Loss of redundancy

Unit general alarm

Load imminent stop

Servicing preventive alert

UPS overload alarm

Control panel alarm

7. DESCRIPTION OF THE MENUS

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7. 3.

overloAd monitoring

pRINCIpLE:

The UPS overload monitoring is based on reference levels (the higher the load rate, shorter the overload capacity).
There are two distinct reference levels:

• the rst one corresponds to the overload capacity of the bypass input,

• the second one corresponds to the overload capacity of the inverter.

While operating from the inverter, the load is automatically transferred to the automatic bypass when the reference
level reaches 50% and the bypass input is present.

SIGNALLING AND AUTOMATIC ACTIONS:

The UPS OVERLOAD alarm is activated if:

• the load rate exceeds 103% ("LOAD ON INVERTER"),

• the load rate exceeds 105% ("LOAD ON MAINS").

The alarm disappears if the load rate drops below 100%

TYpICAL UNIT OVERLOAD < 30°C

Overload rate Inverter and byp locked Automatic bypass

Total overload time inverter

+ automatic bypass

110% 60 minutes 60 minutes 30 min + 60 min

125% 10 minutes 10 minutes 5 min + 10 min

150% 30 seconds 1 minute 30 sec + 1 min

NOTE: Should an extended overload occur, the static switch warms up, which results in the disconnection of the
load after some time.
If the load is supplied by the bypass mains following an automatic transfer, no return to the inverter is possible as long
as the UPS is overloaded and the UPS OVERLOAD alarm has not been reset.

7. 4.

remAining BAck up time

The remaining back up time is displayed on the control panel when the UPS operates from the battery. The calcula­tion is obtained from the battery capacity and the Ampères per hour (Ah) consumed by the load.
Text displayed can be set by Consulting, Inspection and Maintenance Department.

7. DESCRIPTION OF THE MENUS

Non contractual document. © 2010, Socomec SA. All rights reserved.

HEAD OFFICE

SOCOMEC GROUP

S.A. SOCOMEC capital 11 102 300 € - R.C.S. Strasbourg B 548 500 149
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SOCOMEC UPS Strasbourg

11, route de Strasbourg - B.P. 10050 - F-67235 Huttenheim Cedex- FRANCE
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SOCOMEC UPS Isola Vicentina

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SALES, MARKETING AND
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SOCOMEC UPS Paris

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Socomec UPS

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IN ASIA

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