SYSTEM DATA

UNINTERRUPTIBLE POWER SUPPLY (UPS),

Type: PEW 1010-110/220-EAN-R

TABLE OF CONTENTS:
1120082001 SINGLE-LINE DIAGRAM

4A-1120082001/23GB TECHNICAL DATA (7RA9021GB)

7RA9061GB FUNCTIONAL DESCRIPTION

7RA9034GB SEPARATION OF THE REDUNDANCY COMMUNICATION

Revision 1 (A) Revision 2 (B) Revision 3 (C) Revision 4 (D) Revision 5 (E) Revision 6 (F) Revision 7 (G)
prepared: Dat./Vis. 12-05-25 JIT
approved: Dat./Vis. 12-05-25 TGL
released: Dat./Vis. 12-05-25
arised from: 7RA9008GB Client Ref.: -
-
GUTOR Electronic LLC -
Wettingen / Switzerland Rev. Page
by Schneider E l e c t r i c
4A-1120082001/20GB 1 1/1
 TECHNICAL DATA
of
UPS SYSTEM, Type: PEW 1010-110/220-EAN-R
Item #: UPS 1: UPS-285 A / UPS 2: UPS-285 B

TABLE OF CONTENTS:
1. System configuration
2. Mechanical Specification
3. General Specification
4. Electrical Specification of one System unit
5. Adjustments
6. Operational Parameters

12-05-25 JIT
12-05-25 TGL
12-05-25
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 TECHNICAL DATA — PEW 1010-110/220-EAN-R

1. SYSTEM CONFIGURATION
One complete UPS system is consisting of:
Pcs:
2 Rectifiers / Chargers
2 Inverters incl. Static Switches EA & EN
1 Manual bypass switch with 3 switching positions
1 Bypass mains Transformer
1 Battery
1 Distribution

2. MECHANICAL SPECIFICATION
UPS
Enclosure ................................................................................. : The UPS is housed in a free-standing,
fully metal enclosed cabinet arranged
for floor mounting.

Arrangement / Dimensions ....................................................... : see drawing: 1120082001/00 Chapter

01

Protection class (according to IEC 60529) ................................. : IP 20

.................................................................... with open doors : IP 20, Operator protection

Painting ..................................................................................... : ANSI No. 61

Inside and Top covering ....................................................... : galvanized

Ventilation ................................................................................. : Internal fans. Air inlet in the back and

in front below, outlet on the top

Cable entry................................................................................ : from bottom

Terminal size............................................................................ : see drawing: 1120082001/00 Chapter

04

Weight............................................... total (without Distribution) : 1230 kg

BATTERY
Mounting .................................................................................. : The Battery is mounted on a steel
rack

Arrangement / Dimensions ....................................................... : see drawing: 1120082001/00 Chapter

02

Weight....................................................................................... : 1310 kg

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 TECHNICAL DATA — PEW 1010-110/220-EAN-R
Number of cells ......................................................................... : 1 string x 92 cells

Manufacturer ............................................................................. : ALCAD

Type.......................................................................................... : LBE415P

Capacity .................................................................................... : 415 Ah / 5 h

Autonomy........................................................................... total : 240 min at Load 10.0 kVA, p.f. 0.8 lag
ambient temperature 20 °C

Temperature compensation of charging voltage ................. total : 276 mV/°C

3. GENERAL SPECIFICATION
Installation altitude with full rating .............................................. : max. 1000 m ASL
With derating of 7 % per additional 1000 m .......................... : max. 4000 m ASL

Ambient temperature range, at air inlet

- for operation (100 % nominal load) .................................. : -10 °C .... +40 °C
- with derating at increased air throughput.......................... : max. 55 °C
- for storage ....................................................................... : -20 °C .... +70 °C for systems
(for batteries in accordance with
battery manufacturer data)

Relative air humidity.................................................................. : £ 95 %, not condensing

Audible Noise level (1 m height, 1 m distance) ..........................

with Standard N+1 Fans ........................................... approx. : 60...70 dBA (depending on type)
100 % redundant Fans ............................................. approx. : 65...75 dBA (depending on type)

Reliability MTBF with Bypass .................................................... : > 200000 h

Functional (performance) test .................................................... : IEC / EN 62040-3

General and Safety requirements .............................................. : IEC / EN 62040-1-2

EMC requirements..................................................................... : IEC 62040-2

Quality assurance...................................................................... : ISO 9001

4. ELECTRICAL SPECIFICATION OF ONE

SYSTEM UNIT
RECTIFIER
Mains input power, max............................................................. : 34.5 kVA

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 TECHNICAL DATA — PEW 1010-110/220-EAN-R
Input voltage .............................................................. (3ph, PE) : 3 x 480 V AC
- Tolerance — DC in tolerance........................................... : + 10 / - 10 %
- Tolerance — for function ................................................. : + 10 / - 15 %

Input current, max. .................................................................... : 41.5 A AC

Input frequency.......................................................................... : 60 Hz ±8%

External protection .................................................... (gG type) : 50 A AC

Power factor
- at nominal mains and float charge ................................... : » 0,83 ind.
- at - 10 % mains and float charge ..................................... : » 0,90 ind.
- at + 10 % mains and float charge .................................... : » 0,75 ind.

Nominal voltage of DC intermediate circuit................................ : 110 VDC

Static voltage control tolerance.................................................. : ± 1 % (IU-characteristics)

Making behaviour ...................................................................... : Electronic softstart

Efficiency at rated load .............................................................. : 91.0 %

Tolerances according to IEC 60146-2

BYPASS MAINS TRANSFORMER

Rated power .............................................................................. : 10 kVA

Input voltage ............................................................................. : 480V AC ± 10%, 3 ph, 3 wire

Input frequency.......................................................................... : 60 Hz ± 6%

Input current (at rated power)......................................... I1 = I3 = : 12.5 A AC

........................................................................................ I2 = : 25.0 A AC

External protection .................................................... (gG type) : 32 A AC

Output voltage........................................................................... : 220 VAC, 1 ph

Nominal output current .............................................................. : 45.5 A AC

Short circuit impedance .............. Bypass transformer / stabilizer : 4%

Short circuit current ..........................................................(rms) : 25x output current (infinite low

impedance of the supply source
assumed)

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 TECHNICAL DATA — PEW 1010-110/220-EAN-R
INVERTER
Nominal input voltage............................................................. : 110 V DC
Input voltage tolerance
- for adherence to the output data. ..................................... : - 15 % / + 20 %
- for adherence to the function. .......................................... : ± 25 %

Input current at load cos j 1.0

at Nominal input voltage.................................... 100 % Load : 108 A DC
at "Low DC voltage - Warning" .......................... 100 % Load : 125 A DC
at "Low DC voltage - Warning" ......................... 150 % Load : 187 A DC

Output rating ............................................................................. : 10 kVA

Power factor range .................................................................... : 0,4 ind. .... 0,9 cap.

rated for................................................................................ : cos j 0.8 lag

Output voltage......................................................................... : 220 VAC, 1 ph

Output voltage regulation ..................................................... : ±1%

Output frequency .................................................................... : 60 Hz

Output frequency regulation, not synchronized ..................... : ± 0,01 %

Output Current nominal .................................... 100 % : 46 A AC

short-circuit for 0...100 ms....... 200 % : 91 A AC
overload for 0...1 min ............... 150 % : 68 A AC
overload for 1...10 min ............. 125 % : 57 A AC
overload continuous................. 105 % : 48 A AC

Efficiency at nominal load.......................................................... : 85 %

Tolerances according to IEC 60146-2

Distortion factor ...................................... total, with linear load : <4%

........................................................ any individual harmonic : <3%
.............. with non-linear load according to IEC / EN 62040-3 : 5%

STATIC SWITCH EN (BYPASS)

Output Current nominal .................................... 100 % : 46 A AC
overload for 0...1 min ............... 150 % : 68 A AC
overload for 1...10 min ............. 125 % : 57 A AC
overload for 100 ms ............... 1000 % : 455 A AC

BATTERY FUSE
Voltage...................................................................................... : 480 V DC

Current ...................................................................................... : 160 A DC

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 TECHNICAL DATA — PEW 1010-110/220-EAN-R
DISTRIBUTION see drawing: 1120082001/00 Chapter 04

SYSTEM
Overall efficiency ...................................................................... : 77 %
Tolerances according to IEC 60146-2

5. ADJUSTMENTS
RECTIFIER / BATTERY
Float charge voltage.................................................................. : 131 V DC

Boost charge voltage................................................................. : 143 V DC

.....................................................................time interval : 12 h

Total current limitation............................................................... : 200 A DC

Battery current limitation............................................................ : 83 A DC

Rectifier High DC voltage ...........................................Shutdown : 149 V DC

DC Earth fault current................................................................ : 10 mA

Temperature compensation ............................... Charge voltage : 3.00 mV/°C per cell

Battery temperature alarm ......................................................... : 45 °C

INVERTER
Possibilities Settings
Low DC voltage Warning ........ : ......................................... 95 V DC
Shutdown...... : ......................................... 87 V DC

High DC voltage Warning ........ : ......................................... 147 V DC

Shutdown...... : ......................................... 159 V DC

Synchronization range .......................... : ±0,5/1/2/4/6 %................... ± 6%

Slewrate
(for redundant system)..................... : Individual system unit (fix) 4 Hz/s
Overall system (fix)........... 1 Hz/s

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 TECHNICAL DATA — PEW 1010-110/220-EAN-R
SYSTEM
Possibilities Settings
Delay of Common Alarm relay.............. : 0...327 s.......................................... 5s

6. OPERATIONAL PARAMETERS
Possibilities Settings
Second language in Display ................. : Two languages: ............................GB + ES
CZ / DE / DK / ES / FI / FR / HU / IT / NL /
NO / PL / PT / RU / SE / SK.......................

Autostart............................................... : ON/OFF..................................................... OFF

Bypass operation.................................. : ON/OFF OFF
Boost charge ........................................ : ON/OFF OFF
Autoboost ............................................. : ON/OFF..................................................... OFF
Adaptive slewrate ................................. : ON/OFF OFF
Battery capacity Test ............................ : ON/OFF OFF

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 FUNCTIONAL DESCRIPTION
of
REDUNDANT UPS System PEW/PDW with Static switches EA
& EN, with one 3-Position Manual bypass switch,
1 common Battery & 1 common Bypass mains

TABLE OF CONTENTS:
1. General Explanations
2. Priorities
3. Normal Operation
4. Battery Operation
5. Bypass Operation
6. Charger Only
7. Standby Operation
8. Off
9. Manual Bypass

00-02-04 mp 07-02-07 mp 09-08-11 mp

00-02-04 GA 07-02-07 MDR 09-08-11 MDR
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 FUNCTIONAL DESCRIPTION

1. GENERAL EXPLANATION
ACTUATION OF «SWITCHES»

Circuit breakers, switch-disconnectors (fuse switch-disconnectors), or changeover

switches, as well as any additionnal «switches» may only be actuated according to
the descriptions «Commissioning» and 7RA9119GB «Starting - Switching over -
Stopping».

MANUAL BYPASS SWITCH WITH 3 SWITCHING POSITIONS

The manual bypass offers the possibility of setting the system volt-free when performing work inside
the system. The switch Q050 switches overlapping, i.e. no interruptions at the load when switching
over. The switch consists of 3 switching positions (3 steps):

EXPLANATION TO THE SKETCHES

current flow =
energized =

Depending upon the system configuration, the switches represented in the sketches can be circuit
breakers, switch-disconnectors (fuse switch-disconnectors) and the designation can be made
according to customer's request see «Single linde diagram».

2. PRIORITIES
The parallel/redundant UPS can be operated in different operating modes, dependent on the
availability of the rectifier mains, bypass mains, battery voltage and actual load.

AN INTERNAL, REDUNDANT COMMUNICATION SERVES:

♦ therefore, that both units are synchronized:

ƒ The bypass mains synchronization signal is measured separately by each controller

(Inverter 1 and Inverter 2).

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 FUNCTIONAL DESCRIPTION
ƒ One of the two inverters will begin to operate as «Master» and sends thereby the bypass
mains synchronization signal on the internal synchronization bus.
ƒ The «Slave» inverter will synchronize to this signal and hence all three outputs are in phase
(Inverter 1, Inverter 2 and Bypass).
ƒ In each controller an internal oscillator is synchronously running to the synchronization
signal.
ƒ If the synchronization signal from the bypass mains is missing (or outside the tolerance
range) the oscillator of the «Master» will take over.
ƒ In the case of a failure in the controller which is operating as «Master», the «Slave» will
immediately become «Master».

♦ for an active load sharing:

When both units of the UPS system operate in either normal operation or in battery operation
the total load of the parallel/redundant UPS system is distributed in the way that each unit takes
over 50% of the load.

♦ therefore, that both system units are informed about the current operating
mode
In parallel/redundancy operation the unit running in parallel is informed about the operating
mode of the other unit in question. This causes that the second unit changes automatically on
the same operating mode, dependent on the priority sequence.

A parallel/redundant UPS tries to operate both units in an operating mode of the highest priority
see fig. 1.

If the second unit tries to change to a lower priority, e.g. battery operation, and if the first unit
runs still in normal operation, the second unit will change to «Hot standby» see fig. 2.

If the first unit changes to a lower priority, e.g. battery operation, the second unit will likewise
change to battery operation see fig. 3.

In the following the different operating modes and priorities for an UPS with the static switches EA &
EN are explained:

HIGHEST PRIORITY, Manual bypass switch at position «AUTO»:

Section 3. Normal operation
3.1 Normal operation with one Unit active
4. Battery operation
5. Bypass operation
6. Charger only
7. Standby

LOWEST PRIORITY, Manual bypass switch at position «AUTO»:

Section 8. OFF

TEST / MAINTENANCE, Manual bypass switch at position «TEST» or «BYPASS»:

Section 9. Manual bypass

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 FUNCTIONAL DESCRIPTION

3. NORMAL OPERATION
At normal operation the manual bypass switch is always at position «AUTO».

The three-phase AC input of both units (rectifier mains 1 & 2) are fed to the phase angle controlled
rectifiers via a matching transformer. The rectifiers compensate mains voltage fluctuations as well
as load deviations, and maintain the DC voltage constant.

The rectifiers of both units supply their inverter with energy and secure that the connected battery is
kept on standby (float charge and boost charge depend on the charging condition and on the type of
the battery).

The downstream inverters convert the DC voltage by means of optimized sinewave pulse width
control (PWM) into AC voltage and supply the connected load via the static switch EA.

Fig. 1 Normally, the load is supplied from both inverters in parallel/redundant

operation via the static switch EA

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 FUNCTIONAL DESCRIPTION

Concerns: UPS 1 UPS 2 Completing Explanation:

Rectifier mains available available and within the tolerance range
Q001 closed closed
Bypass mains available and within the tolerance range (may be outside the tolerance range)
Q090 closed
Q092 closed
Q093 closed
Q050 at position «AUTO»
and within the tolerance range (dependent on the charging condition of
Battery available
the battery — it may be in recharge mode).
Q004 (Q005) closed closed
Rectifier ON ON
Inverter ON ON
Static switch EN OFF OFF
Static switch EA ON ON
Q094 closed
Q095 closed
Output voltage available and within the tolerance range

Should one inverter fail the other one takes over the full load see fig. 2.

If the supply of the load from the inverter is not secured, due to e.g. overload (each > 150%
1 minute, 125% 10 minutes) or a fault in the inverter, the UPS will change over to bypass operation
for further information see section 5: «Bypass operation».

3.1 NORMAL OPERATION WITH ONE UNIT ACTIVE

If for any reason (e.g. mains failure, fault in the rectifier or in the inverter) one unit cannot operate in
normal operation, the other unit takes over the load.

Fig. 2 The load is supplied from one inverter via the static switch EA

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 FUNCTIONAL DESCRIPTION

Concerns: UPS 1 UPS 2 Completing Explanation:

and within the tolerance range (for one rectifier it may be outside the
Rectifier mains available available
tolerance range)
Q001 closed closed
Bypass mains available and within the tolerance range (may be outside the tolerance range)
Q090 closed
Q092 closed
Q093 closed
Q050 at position «AUTO»
and within the tolerance range (dependent on the charging condition of
Battery available
the battery — it may be in recharge mode).
Q004 (Q005) closed closed
Rectifier ON OFF/ON ‘) ‘) dependent on the fault
Inverter ON OFF/ON ‘) ‘) dependent on the fault
Static switch EN OFF OFF
Static switch EA ON OFF
Q094 closed
Q095 closed
Output voltage available and within the tolerance range

4. BATTERY OPERATION
At battery operation the manual bypass switch is always at position «AUTO».

In the event of power sags or failures the inverters are no longer supplied from the rectifiers. The
battery which is connected to the DC intermediate circuit is called up automatically and without
interruption to supply the current.

The discharging of the battery is signalled. The battery voltage drops as a function of the duration
and the magnitude of the discharge current. The voltage drop is controlled by the inverters and thus
the UPS output voltage is kept constant.

If the limit of discharge of the battery is approached an alarm is activated. On mains recovery or on
emergency power generation by means of a diesel generator before the limit of discharge is
reached the system changes automatically back to normal operation, if not, the system will change
automatically to bypass operation, if the bypass mains is available and within the tolerance range. If
the bypass mains is not available or outside the tolerance range the system will shut down
automatically.

On mains recovery or on emergency power generation by means of a diesel generator the rectifiers
start up after 60 seconds and will charge the battery, if the UPS system is programmed for
«AUTOSTART» at mains recovery see «Technical data». If the system is not programmed
for «AUTOSTART» it has to be restarted manually see description 7RA9119GB «Starting
- Switching over - Stopping».

Dependent on the depth of discharge of the battery the charge current is limited by means of the
battery current limitation.

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 FUNCTIONAL DESCRIPTION
Fig. 3 The load is supplied from the battery

MANUAL BYPASS SWITCH Q050

Q090
BYPASS
MAINS
BYPASS
TEST
STATIC SWITCHES Q092
AUTO

UPS 1 F028 EN

RECTIFIER 1 INVERTER 1
Q001 F021 Q094 LOAD
MAINS 1
EA
Q004
common (Q005)
BATTERY STATIC SWITCHES Q093

UPS 2
F028 EN
Q004
RECTIFIER 2 (Q005) INVERTER 2
Q001 F021 Q095
MAINS 2
EA

Concerns: UPS 1 UPS 2 Completing Explanation:

outside the outside the
Rectifier mains tolerance tolerance
range range
Q001 closed closed
Bypass mains available and within the tolerance range (may be outside the tolerance range)
Q090 closed
Q092 closed
Q093 closed
Q050 at position «AUTO»
Battery available and within the tolerance range
Q004 (Q005) closed closed
Rectifier OFF OFF
Inverter ON ON
Static switch EN OFF OFF
Static switch EA ON ON
Q094 closed
Q095 closed
Output voltage available and within the tolerance range

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 FUNCTIONAL DESCRIPTION

5. BYPASS OPERATION
At bypass operation the manual bypass switch is always at position «AUTO».

This system part enables the consumers to be changed over without interruption to direct mains
power supply (bypass mains) under adherence to the specified tolerances. The change-over can be
initiated automatically by a control signal, or manually.

Every interrupt-free change-over, whether automatic or manual is normally only possible if voltage,
frequency and phase relation of the UPS system are synchronized to the bypass mains. Deviations
in the mains frequency outside the specified tolerance ranges inhibit normally a change-over. It is
possible to configure the UPS in such a way that the system can change over to bypass even when
it is not synchronized. In this case the change-over is made with a break of 10….20ms.

The manually change-over is only possible if the system is synchronized.

Automatic change-over of the load to the bypass mains takes place when the power supply within
the specified tolerances is not assured by the inverters.

If a bypass mains fault occurs in this situation the system will automatically change over to normal
operation if the rectifier mains is available, otherwise a change-over to battery operation takes place
if the battery is available and within the tolerance range (occurs only if the system is manually
switched to bypass operation). Thereby, dependent on the programming a short loss of the
output voltage can occur.

Fig. 4 Bypass operation due to automatic change-over. The load is supplied direct
from the bypass mains without disturbing the consumers at the safe bus.

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 FUNCTIONAL DESCRIPTION

Concerns: UPS 1 UPS 2 Completing Explanation:

(may be within the tolerance range)
outside the outside the
♦ The UPS will also change to bypass if the inverter is in current
Rectifier mains tolerance tolerance
limitation, due to overload. The power supply of the
range range
inverter is not guaranteed.
Q001 closed closed
Bypass mains available and within the tolerance range
Q090 closed
Q092 closed
Q093 closed
Q050 at position «AUTO»
(may be within the tolerance range)
♦ The UPS will also change to bypass if the inverter is in current
Battery outside the tolerance range
limitation, due to overload. The power supply of the
inverter is not guaranteed.
Q004 (Q005) closed closed
Rectifier OFF / ON OFF / ON (dependent on the cause of the change-over)
Inverter ON / OFF ON / OFF (dependent on the cause of the change-over)
Static switch EN ON ON
Static switch EA OFF OFF
Q094 closed
Q095 closed
Output voltage available and within the tolerance range

If the overload any longer does not exist or a possible error is recovered, the UPS switches
automatically back to normal operation or battery operation.

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 FUNCTIONAL DESCRIPTION
Fig. 5 Bypass operation due to manual change-over. The load is supplied direct
from the bypass mains without disturbing the consumers at the safe bus.

Concerns: UPS 1 UPS 2 Completing Explanation:

and within the tolerance range
Rectifier mains available available
♦ Bypass operation was selected by means of the foil key board
Q001 closed closed
Bypass mains available and within the tolerance range
Q090 closed
Q092 closed
Q093 closed
Q050 at position «AUTO»
and within the tolerance range
Battery available
♦ Bypass operation was selected by means of the foil key board
Q004 (Q005) closed closed
Rectifier ON ON
Inverter ON ON
Static switch EN ON ON
Static switch EA OFF OFF
Q094 closed
Q095 closed
Output voltage available and within the tolerance range

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 FUNCTIONAL DESCRIPTION

6. CHARGER ONLY
Fig. 6

Concerns: UPS 1 UPS 2 Completing Explanation:

Rectifier mains available available and within the tolerance range
Q001 closed closed
Bypass mains available and within the tolerance range (may be outside the tolerance range)
Q090 closed
Q092 closed
Q093 closed
Q050 at position «AUTO» may be at position «TEST» or «BYPASS» see section 9
Battery available (dependent on the charging condition)
Q004 (Q005) closed closed
Rectifier ON ON
Inverter OFF OFF
Static switch EN OFF OFF
Static switch EA OFF OFF
Q094 closed
Q095 closed
Output voltage NONE

The load is not supplied.

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 FUNCTIONAL DESCRIPTION

7. STANDBY OPERATION
Fig. 7 UPS ready for switching on

MANUAL BYPASS SWITCH Q050

Q090
BYPASS
MAINS
BYPASS
TEST
STATIC SWITCHES Q092
AUTO

UPS 1 F028 EN

RECTIFIER 1 INVERTER 1
Q001 F021 Q094 LOAD
MAINS 1
EA
Q004
common (Q005)
BATTERY STATIC SWITCHES Q093

UPS 2
F028 EN
Q004
RECTIFIER 2 (Q005) INVERTER 2
Q001 F021 Q095
MAINS 2
EA

Concerns: UPS 1 UPS 2 Completing Explanation:

Rectifier mains ‘) available available [at least one of the supplies Í) has to be available]
Q001 closed closed
Bypass mains‘) available [at least one of the supplies Í) has to be available]
Q090 closed
Q092 closed
Q093 closed
Q050 at position «AUTO» may be at position «TEST» or «BYPASS» see section 9
Battery‘) available [at least one of the supplies Í) has to be available]
Q004 (Q005) closed closed
Rectifier OFF OFF
Inverter OFF OFF
Static switch EN OFF OFF
Static switch EA OFF OFF
Q094 closed
Q095 closed
Output voltage NONE

The load is not supplied.

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 FUNCTIONAL DESCRIPTION

8. OFF
Circuit breakers, switch-disconnectors (fuse switch-disconnectors), or changeover
switches, as well as any additionnal «switches» may only be actuated according to
the descriptions «Commissioning» and 7RA9119GB «Starting - Switching over -
Stopping».

Fig. 8 Display black

Some components in the connection field as well as elements and

lines can be energized.

Concerns: UPS 1 UPS 2 Completing Explanation:

Rectifier mains not available not available
Q001 open open
Bypass mains not available
Q090 open
Q092 closed
Q093 closed
Q050 at position «AUTO» may be at position «TEST» or «BYPASS» see section 9
Battery disconnected
Q004 (Q005) open open
Rectifier OFF OFF
Inverter OFF OFF
Static switch EN OFF OFF
Static switch EA OFF OFF
Q094 closed
Q095 closed
Output voltage NONE

The load is not supplied.

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 FUNCTIONAL DESCRIPTION

9. MANUAL BYPASS

The manual bypass switch Q050 may only be actuated according

to the descriptions «Commissioning» and 7RA9119GB «Starting -
Switching over - Stopping».

The position « TEST » can be used for test purposes (repair and maintenance work), e.g. for the
synchronization of the inverter to the bypass mains, or for switching attempts between Inverter -
Bypass - Inverter. Therefore an external artificial load can be connected at the TEST terminal
(optional), which however may not exceed the rated output (load + test load = ≤ rated output).

Check therefore the fuse size of the main fuse at the UPS input (bypass mains)!!

Fig. 9 Functional check

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 FUNCTIONAL DESCRIPTION

Concerns: UPS 1 UPS 2 Completing Explanation:

Rectifier mains available available
Q001 closed closed
Bypass mains available and within the tolerance range
Q090 closed
Q092 closed
Q093 closed
Q050 at position «TEST»
Battery available
Q004 (Q005) closed closed
Rectifier ON ON
Inverter ON ON
Static switch EN ON / OFF ON / OFF
Static switch EA OFF / ON OFF / ON
Q094 closed
Q095 closed
Output voltage available supplied direct from the bypass mains

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 FUNCTIONAL DESCRIPTION
Fig. 10 Repair and Maintenance Work
For repair and maintenance work or work inside the system respectively the system is
switched volt-free (manual bypass switch at position «BYPASS») with the
exception of some components in the connection field as well as elements and lines,
which can be energized.

Concerns: UPS 1 UPS 2 Completing Explanation:

Rectifier mains not available not available
Q001 open open
Bypass mains available and within the tolerance range
Q090 closed
Q092 closed
Q093 closed
Q050 at position «BYPASS»
Battery disconnected
Q004 (Q005) open open
Rectifier OFF OFF
Inverter OFF OFF
Static switch EN OFF OFF
Static switch EA OFF OFF
Q094 closed
Q095 closed
Output voltage available supplied direct from the bypass mains

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 SEPARATION OF THE REDUNDANCY
COMMUNICATION
for
REDUNDANT UPS SYSTEMS, Type: PEW / PDW-R

TABLE OF CONTENTS:
1. Parallel / Redundancy operation = Normal operation
2. Separation of the Redundancy = Single operation

07-03-08 mp
07-03-08 MDR
07-03-08
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 SEPARATION OF THE REDUNDANCY COMMUNICATION

1. PARALLEL / REDUNDANCY OPERATION = NORMAL

OPERATION
This system consists of two from each other independent system units. They can run either as
parallel / redundant system or as two individual systems = Single operation.

At parallel/redundant operation the system unit in parallel is informed about the operational
mode of the other system unit. This causes that the system automatically changes to the same
operational mode depending on the priority succession. In case of a fault or change-over, the
affected system unit in parallel cannot force another system unit to a lower priority mode than the
healthy unit is able to maintain.

If a fault arises in a system unit in parallel, it will switch over to a lower priority, and automatically
turn off if the other system unit can manage the load. If the other system unit cannot manage the
load, both system units switch over to a lower priority operational mode.

Only if all safe bus switches of UPS1 and UPS2 are closed, both system units are running in
redundant operation.

Please consider that the safe bus switches of UPS1 and UPS2 and may not be
opened during normal operation (parallel operation), otherwise the parallel
operation connection is lost.

2. SEPARATION OF THE REDUNDANCY = SINGLE

OPERATION

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 SEPARATION OF THE REDUNDANCY COMMUNICATION
Due to the separation of the redundancy both system units are not working on a common busbar.
Only if all safe bus switches of UPS1 and UPS2 are closed, both system units are working in
redundant operation.

The two Masterlogic boards A701 on the Controllers A070 of UPS1 and UPS2 control the behaviour
of the redundant system. This improves the communication between the two system units and they
also get the information about the condition of the output breakers. If the outputs of UPS1 and
UPS2 are not connected together or one UPS is turned off then UPS1 and UPS2 act in every case
exactly like a single UPS.

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