LEGRAND Keor SPE 750 User manual

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Table of Contents
1. Introduction ..........................................................................................................3
2. Regulatory and safety requirements....................................................................5
3. Installation............................................................................................................7
4. Operation .............................................................................................................8
5. Troubleshooting .................................................................................................19
6. Maintenance ......................................................................................................21
7. Warehousing and Dismantling...........................................................................23
8. Technical specifications.....................................................................................24

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1. Introduction
DANGER
It is necessary to read the whole manual carefully before doing any operation.
Keor SPE must be used only in residential and commercial environments.
1.1 Purpose of the manual
The purpose of this manual is to provide the user with instructions for safely installing and using the
Keor SPE UPS, also called “equipment” in the rest of the manual.
Only skilled technicians can carry out ordinary maintenance procedures as explained in the appendix.
Extraordinary maintenance operations are not dealt with because they are the sole preserve of the
LEGRAND Technical Support Service.
The intended use and configurations envisaged for the equipment as shown in this manual are the only
ones allowed by the Manufacturer.
Any other use or configuration must be previously agreed with the Manufacturer in writing and, in this
case, the written agreement will be attached to the installation and user manuals.
The original text of this publication, drafted in English, is the only reference for the resolution of
disputes of interpretation linked to translations into other languages.
1.2Update of the manual
The manual reflects the state of the art when the equipment was put onto the market. The publication
conforms to the directives current on that date. The manual cannot be considered inadequate when
new standards come into force or modifications are made to the equipment.
Any addition to the manual the Manufacturer considers appropriate to send to the users, must be kept
together with the manual of which they will become an integral part.
The version of the manual updated to its latest release is available on the Internet at
http://www.ups.legrand.com
1.3Guarantee terms
The guarantee terms may vary depending on the country where the UPS is sold. Check the validity
and duration with LEGRAND's local sale representative.
If there should be a fault in the product, contact the LEGRAND Technical Support Service which will
provide all the instructions on what to do.
Do not send anything back without LEGRAND's prior authorization.
LEGRAND is not responsible for costs such as:
- losses of profits or earnings;
- losses of equipment, data or software;
- claims by third parties;
- any damage to persons or things due to improper use, unauthorized technical alterations or
modifications;
- any damage to persons or things due to installations where the full compliance with the standard
regulating the specific usage applications have not been guaranteed.
The Manufacturer declines all indirect or direct responsibility arising from:
- assembly and cabling made by personnel not fully qualified according to national standards to work
on equipment presenting electrical hazards;

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- failure to observe the installation and maintenance instructions and use of the equipment which
differs from the specifications in the manuals;
- use by personnel who have not read and thoroughly understood the content of the user manual;
- use that does not comply with the specific standards used in the country where the equipment is
installed;
- modifications made to the equipment, software, functioning logic unless they have been authorized
by the Manufacturer in writing;
- repairs that have not been authorized by the LEGRAND Technical Support Service;
- damage caused intentionally, through negligence, by acts of God, natural phenomena, fire, or liquid
infiltration.
1.4 Copyright
The information contained in this manual cannot be disclosed to any third party. Any partial or total
duplication of the manual by photocopying or other systems, including electronic scanning, which is not
authorized in writing by the Manufacturer, violates copyright conditions and may lead to prosecution.
LEGRAND reserves the copyright of this publication and prohibits its reproduction wholly or in part
without previous written authorization.

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2. Regulatory and safety requirements
This section contains important safety and operating instructions that should always be followed during
the installation, use and maintenance of the UPS.
DANGER
The UPS works with dangerous voltages. Only skilled technicians qualified and authorized by
LEGRAND must perform ordinary maintenance operations. No part of the UPS can be repaired by the
user. Extraordinary maintenance operations must be carried out by LEGRAND Technical Support
Service personnel.
• This product should be installed in compliance with installation rules, preferably by a qualified
electrician. Incorrect installation and use can lead to risk of electric shock or fire. Before carrying out
the installation, read the instructions and take account of the product’s specific mounting location. Do
not open up, dismantle, alter or modify the device except where specifically required to do so by the
instructions. All Legrand products must be opened and repaired exclusively by personnel trained and
approved by Legrand. Any unauthorised opening or repair completely cancels all liabilities and the
rights to replacement and guarantees. Use only Legrand brand accessories.
• Ensure that the mains supply voltage and frequency match those of the UPS (see the product label
and the technical specifications).
• If any visible damage is found on the product during the unpacking operation, do not install the UPS
but repack the unit and return it to your reseller or distributor.
• Before operating the UPS or connecting any load equipment, ensure the UPS is connected to a
properly grounded mains socket.
• The load applied must not exceed the one indicated on the type label of the UPS.
• The ON/OFF button of the UPS does not electrically isolate the internal parts. To isolate the UPS,
unplug it from the mains power socket.
• Do not attempt to open or disassemble the UPS; there are no user replaceable parts. Opening the
case will void the warranty and introduces the risk of electric shock even when the mains plug is
disconnected.
• Since the non-detachable power supply cable acts as a separation device, the mains power supply
socket shall be installed near the UPS and shall be easily accessible.
• In case of a mains power supply failure, do not unplug the power supply cable. Earth continuity must
be ensured to the connected loads.
• Do not plug non-computer-related items such as medical, life-support and house electric equipment
to the UPS output.
• Do not plug laser printers to the UPS back-up outputs because of their high start-up current.
• The UPS functions with TT and TN systems.
•The UPS has dangerous high voltages on its input and output connections. Contact with these
voltages may be life threatening.
• In case of emergency, immediately turn off the equipment and disconnect the power cord from the
AC power supply to disable the UPS.
• Do not allow any liquid or any foreign object to enter the UPS.
• The UPS is intended for indoor installation in a ventilated, controlled indoor environment with a range
of temperature between 0°C (+32°F) and +40°C (+104°F) and non-condensing humidity <95%.
• Do not install the UPS in locations with sparks, smoke, and hazardous gas or where there is water
and excessive humidity. Dusty, corrosive, and salty environments can damage the UPS.
• Do not plug the UPS input into its own output.
• Do not attach a power strip or surge suppressor to the UPS.
• Ensure that the cables connecting the loads to the UPS are not longer than 10 meters.
• Keep a clearance of 20 cm beyond the UPS rear panel. Avoid exposing it to direct sunlight or
installing it near heat emitting appliances.
• Unplug the UPS prior to cleaning and do not use liquid or spray detergent.

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• Do not place the UPS near equipment that generate strong electromagnetic fields and/or near
equipment that are sensible to electromagnetic fields.
• The battery of the UPS should be recharged every 2-3 months if unused. To do so, connect the
power cable to a suitable grounded mains socket.
• To safeguard the batteries as well as possible it is necessary to bear in mind that their average
lifetime is strongly influenced by the operating room temperature. Position the UPS in an environment
with a temperature range between +20°C (+68°F) and +25°C (+77°F) to guarantee the optimum life of
the batteries.
• The UPS is equipped with an auto-restart system. In case of return of the input mains after an end of
battery operation, the UPS switches on and returns to normal operation by supplying the output loads.
• The UPS is equipped with an automatic backfeed protection system.
DANGER
The UPS is powered by its own DC energy source (batteries). If the UPS is switched on when no AC
power is available, there is hazardous voltage at the output sockets.
Disconnect all batteries before performing any installation and/or maintenance operation.
CAUTION
The batteries inside the UPS are not user-replaceable. Servicing of batteries must be performed
only by electrical hazard authorized personnel.
A battery can present a risk of electrical shock and burns by high short-circuit circuit current. Failed
batteries can reach temperatures that exceed the burn thresholds for touchable surfaces. The following
precautions should be observed when working on batteries:
a) remove watches, rings or other metal objects.
b) use tools with insulated handles.
c) wear rubber gloves and boots.
d) do not lay tools or metal parts on top of batteries.
e) disconnect the charging source prior to connecting or disconnecting battery terminals.
f) determine if battery is inadvertently grounded. If inadvertently grounded, remove source from ground.
Contact with any part of a grounded battery can result in electrical shock. The likelihood of such
shock can be reduced if such grounds are removed during installation and maintenance (applicable
to equipment and remote battery supplies not having a grounded supply circuit).
g) never leave live cable terminals without an insulated protection.
h) When replacing batteries, replace with the same type and number of batteries or battery packs.
There is the risk of explosion if batteries are replaced by an incorrect type.
CAUTION
Do not dispose of batteries in a fire. The batteries may explode.
Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic.
The batteries installed inside the cabinet must be disposed of correctly. For the disposal requirements
refer to local laws and relevant standards.
WARNING
Keor SPE is a category C2 UPS product according to the EN 62040-2
In a residential environment, this product may cause radio interference, in which case the user may be
required to take additional measures.

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3. Installation
3.1 Positioning constraints
The UPS must be placed on a support surface as shown in the following drawings.
Keep at least 100 mm of free space around the UPS for air flow.
BACK
FRONT

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4. Operation
4.1 Overview
Front View
Rear View of 750VA
2
1
3
5
6
1.ON/OFF button
2. Scrolling left
3. Scrolling right
4. ESC
5. Enter
6. LED
4
1. Communication Ports
2. SNMP Slot
3. AC Input Inlet and input fuse
4. Outlets

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Rear View of 1000VA
Rear View of 1500VA
1. Communication Ports
2. SNMP Slot
3. AC Input Inlet and input fuse
4. Outlets
1. Communication Ports
2. SNMP Slot
3. AC Input Inlet and input fuse
4. Outlets

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Rear View of 2000VA
Rear View of 3000VA
1. Communication Ports
2. Input Fuse
3. SNMP Slot
4. AC Input Inlet
5. Outlets
1. Communication Ports
2. Input Fuse
3. SNMP Slot
4. AC Input Inlet
5. Outlets

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4.2 Start-up procedure
4.2.1 Normal mode
1. Ensure that the mains power supply to be used has a suitable voltage/frequency and an upstream
protection rated at either 10A or 16 A (according to the UPS power).
2. Plug the UPS power cord on the UPS inlet on one side and on the mains power supply socket on
the other side.
3. The UPS recharges the battery each time it is connected to a mains power supply (even if it is
powered down). It is recommended to charge the battery at least 6 hours before connecting the loads.
4. Connect the loads to the UPS outlets. Ensure that the power of the loads can be managed by the
UPS.
5. Press the ON/OFF button to start-up the UPS and power the loads. The led bar is lit in green with a
1-second-long acoustic signal.
INDICATION
The UPS has an auto-restart function. In case the mains power fail and the UPS reaches the end of
the back-up time, the load will be automatically powered when the mains power is back if the auto-start
setting is enabled.
4.2.2 Cold start
1. Make sure the internal battery is fully charged.
2. Connect the loads to the outlets.
3. Press the ON/OFF button to start-up the UPS and power the loads in battery mode.
INDICATION
The output frequency in this condition is the last one seen by the UPS when the mains input was
present.
4.3 Buzzer ON/OFF
When the buzzer is active, press the button for 0.1 seconds to silence the current alarm.
In case of a new alarm, the buzzer will be re-activated automatically. When the buzzer is muted, press
the button for 0.1 seconds to turn it on again.
4.4 Shutdown
1. Press and hold the ON/OFF button until the UPS turns off.
2. The UPS stops powering the outlets.
3. Unplug the UPS from the mains power supply socket.
4.5 Battery test
It is possible to execute a manual battery test if the UPS is working in normal mode.
Press and hold the button for 3 seconds and release it after you hear one beep: the UPS will
switch to battery mode and perform a 10-second battery test. After that, UPS will return to line mode.
If the test result is ok, the display will show ‘PAS’ for 7 seconds, then return to the previously viewed
data.
If the test result is abnormal, the display will show ‘FAL’ for 7 seconds, then return to the previously
viewed data. The no-battery/ battery replacement icon ( ) will flash until the ON/OFF button (fault
clear) is pressed.
In case of attempting to perform a battery test while the UPS is running in battery mode, the display will
show ‘noP’ for 7 seconds, then return to the previously viewed data.

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4.6 Multi-function buttons
ON / OFF
The button has three functions:
1. Turn on
•In standby mode, press and hold the button for 1 second, release
it after you hear one beep and the UPS will run in line mode.
•Cold start: When there is no AC input, press and hold the button
for 3 seconds, release it after you hear one beep and the UPS
will start up in battery mode.
2. Turn off
•In line mode, press and hold the button for 3 seconds, release it
after you hear one beep and the output will be off and the UPS
will transfer to run in standby mode.
The UPS will keep charging the batteries when the UPS is in
standby mode. To fully turn off the UPS, please completely
disconnect the UPS from the input power.
•In battery mode, press and hold the button for 3 seconds, release
it after you hear one beep and the UPS will turn off its output.
3. Fault Clear
When the UPS has a fault condition, press and hold the button for 1
second, release it after you hear one beep and the UPS will clear the
fault condition
LEFT
Press the button for 0.1 second to:
•Normal mode: go to the previous display
•Setup mode: decrease a number or change a setting value
RIGHT
Press the button for 0.1 second to:
•Normal mode: go to the next display
•Setup mode: increase a number or change a setting value
ESC - BUZZER ON/OFF - BATTERY TEST
The button has three functions:
1. Exiting the Setup Mode
In Setup Mode, press and hold the button for 3 seconds to exit the Setup
Mode.
2. Exit setting entry without confirm
In Setup Mode, press the button for 0.1 seconds to exit the current setting
entry without confirm the changes.
3. Battery Test
Execute a manual battery test:
•Only possible if the UPS is working in line mode
•Not possible during the Setup Mode
Press and hold the button for 3 seconds and release it after you hear one
beep: the UPS will switch to battery mode and perform a 10-second battery
test. After that, UPS will return to line mode.
•If the test result is ok, the 7-segment display will show ‘PAS’
for 7 seconds, then return to the previously viewed data.
•If the test result is abnormal, the 7-segment display will show
‘FAL’ for 7 seconds, then return to the previously viewed data.
The no-battery/ battery replacement icon ( ) will flash until
the ON/FF button (fault clear) is pressed.
•In case of attempting to perform a battery test while the UPS is

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running in battery mode, the 7-segment display will show ‘noP’
for 7 seconds, then return to the previously viewed data.
ENTER
The button has three functions:
1. Buzzer ON/OFF
When the buzzer is active, press the button for 0.1 seconds to silence the
current alarm. In case of a new alarm (same or different alarm; no matter),
the buzzer will reactivate automatically. When the buzzer is muted, press the
button for 0.1 seconds to turn it on again.
Not available in setup mode.
2. Enter the Setup Mode
Press and hold the button for 3 seconds until you hear one beep and the
“SET” icon will be turned on.
3. Confirm
In Setup Mode, press the button for 0.1 seconds to:
•Enable the editing of the current setting. As confirmation, the value
on the digits will start to flash.
•Save the changes of the current setting. As confirmation, you will
hear one beep and the value on the digits stop to flash.
4.7 LCD Display
4.7.1 Working Diagrams
DIAGRAM
MODE
DESCRIPTION
Stand-by
UPS is operating in standby mode. Input is
normal but the output is not present.
Line
UPS is operating in Line mode. Input is
normal and the output is present.
AVR
UPS is operating in AVR mode.
Input is low/high, and the output is present.
Battery
UPS is operating in battery mode.
Input is not present, and the output is
present.

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4.7.2 Icons
ICON
NAME
DESCRIPTION
AC power
Indicates the input source status.
•ON: the AC input is within the
acceptable input range
•Flashing: the AC input is out of
the acceptable input range, but it is
still enough to charge the battery
•OFF: the AC input is out of the
acceptable input range and is not
enough to charge the battery. It
means that UPS is working on battery
mode.
Load banks
Indicates the output status.
•ON: There is output to the load bank
1/ load bank 2
•OFF: There is no output to the load
bank 1/ load bank 2.
Battery
Indicates the battery status.
•ON: Battery is normal.
•Flashing: Battery abnormal /
disconnected
AVR
UPS is working in AVR mode to stabilize the
output voltage.
Buzzer mute
The buzzer is disabled
Warning
Indicates that there is an internal failure or
an environmental fault. The error code will
also be shown on the 7-segment display.
Please refer to the Fault Error Codes
paragraph for the list and display for relevant
7-segment display information.
Load Level Bar
Indicates the level of the load.
•ON: the bar graph illuminates
according to the load level
•Flashing: there is an overload

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Load Level Bar
1%-20%:the first segment will illuminate
21%-40%: the first two segments will illuminate.
41%-60%: the first three segments will illuminate.
61%-80%: the first four segments will illuminate.
81%-100%:all segments will illuminate.
> 100%: all segments will be illuminated and will flash
Battery Level Bar
Charging mode:
0%-19%:the first segment will flash
20%-39%: the first segment will be illuminated, the second segment will flash
40%-59%: the first 2 segments will be illuminated, the third segment will flash
60%-79%: the first 3 segments will be illuminated, the 4th segment will flash
80%-99%: the first 4 segments will be illuminated, the 5th segment will flash
100%: all 5 segments will be illuminated
Discharging mode:
100%: all 5 segments will be illuminated
99%-80%: the first 4 segments will be illuminated
79%-60%: the first 3 segments will be illuminated
59%-40%: the first 2 segments will be illuminated
39%-20%: the first segment will be illuminated
19%-1%:the first segment will flash
0%: no segments are illuminated
condition
Battery Level Bar
Indicates the level of the battery charge.
•ON: the bar graph illuminates
according to the remaining battery
capacity
•Flashing: the first segment flashes
when a low-battery situation occurs

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4.7.3 7-Segment display
Display items: scroll menu
•Input Voltage
•Input Frequency
•Output Voltage
•Output Frequency
•Battery Voltage
•Battery Charge Level
•Runtime
•Load KVA
•Load KW
Column A
Column B
DESCRIPTION
IN
V
Input voltage
Hz
Input frequency
OUT
V
Output voltage
Hz
Output frequency
RUN TIME
MIN
Remaining back-up time with the current
load, in minutes
SET
various
It means that the UPS is in the setup mode.
Pease refer to Setup Entries paragraph for
details
TEST
A battery test is running
BATT
%
Battery Charge level
V
Battery voltage
AH
Total capacity of installed batteries (internal
+ external), expressed in Ah.
(If the UPS is not expandable, this
parameter won’t be visible)
LOAD
%
Total load value, in percentage
kVA
Total load value, in kVA.
kW
Total load value, in kW
°C
Internal temperature, in Celsius degrees

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•Load Percentage
•Environment Temperature
•Total capacity of installed batteries (internal + external). Not visible in case the UPS is not
expandable
Setup Entries
FUNCTION
DESCRIPTION
SET + OUT + V
Output voltage (200/208/220/230/240). Default value: 230V.
Available in Rack 1U/2U/3U model.
SET +
Buzzer on/off. Default value: ON.
SET + LOAD 1
Manually turn on/off Load 1 bank. Default: ON
Except for the rack version (1U), this option won’t be
available: it means that this output bank will always ON.
SET + LOAD 2
Manually turn on/off Load 2 bank. Default: ON
SET + BATT + AH
Total capacity of installed batteries (internal + external),
expressed in Ah.
Option: Ato, and nn Ah
nn is the Ah of user selected battery.
Ato enables the EBC auto detection.
If the UPS is not expandable, this parameter will be hidden
SET + IN + OUT
Auto Restart on/off. Default: ON
SET
EPO/ROO Setting for NO/NC
There are two pages for this setting:
The main page is the selection for ‘EPO’ or ‘ROO’
The subpage is the selection for the NO/NC
Use the ENTER/ESC button to enter/exit the main/sub page

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4.8 LED bar and Alarm indicators
4.9 Communication devices
The UPS has a standard RS232 serial port, one USB (type B) port and one SNMP slot.
The UPS can also be connected to NAS devices or to computers.
By connecting the UPS to a computer, it is possible to perform functions like:
- displaying all operating and diagnostic data in case of problems;
- setting special functions like the control of the load banks;
- performing automatic shutdown of all computers powered by the UPS (if connected to the TCP/IP
network).
It is possible to download some free of charge software from the website http://www.ups.legrand.com
LED BAR
ALARM
UPS STATUS
Green
Yellow
Red
Fixed
-
-
mains present and regular,
batteries recharging
-
Fixed
-
Intermittent every
0.5 sec
- Warning status (UPS in battery
mode, overload)
- Fan lock, battery disconnect,
EPO activation
-
Fixed
-
Intermittent every 5
sec
UPS operating in battery mode
with battery status >50%
-
Fixed
-
Intermittent every 2
sec
UPS operating in battery mode
with battery status <25%
-
Flashing
-
Intermittent every
0.5 sec
end of autonomy
-
Fixed
-
Intermittent every 5
sec
Test
Fixed
-
-
-
Auto-restart after end of autonomy
-
-
Fixed
Intermittent every 2
sec
EPO activation
-
-
Fixed
Intermittent every
0.5 sec
- Failure
- Battery overload (battery mode)
-
-
Fixed
Continuous sound
Overload shutdown fault

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5. Troubleshooting
INDICATION
POSSIBLE CAUSE
SOLUTION
The UPS works on battery
mode even though the mains
power is available
The input fuse blew
up
Replace the fuse with a new one
The mains power
supply socket is not
supplying power to
the UPS
Check if the UPS works on
another socket.
If so, have the first mains power
supply socket checked by a
qualified electrician.
-
Check that the input power cord is
properly connected to the inlet and
to the mains socket
The input line is out
of the allowed UPS
range
Check the input line
Continuous sound alarm sound
with the UPS working in normal
mode
Overload
Disconnect some non-critical loads
from the UPS outlets until the
overload ceases
The UPS is working
normally but the loads are
not powered
-
Check that all power cords are
properly connected to the outlets
and to the load.
If the problem persists, contact the
LEGRAND Technical Support
Service
The UPS does not operate in
battery mode: it shuts down or
immediately signals it is close to
the operating limit
The UPS has
operated with no
mains voltage for a
long time and has
not been able to
recharge the battery
Recharge it for at least 8 hours by
connecting the UPS to the mains
The battery is flat
due to not using the
UPS for a long
period.
Recharge it for at least 6 hours by
connecting the UPS to the mains.
If the batteries are no longer
working, contact a skilled
technician to replace them.
The battery has run
down due to being
used frequently, to
ambient conditions,
or to having
exceeded its
average service life
Contact a skilled technician or the
LEGRAND Technical Support
Service to replace the batteries
Strange noise or smell
UPS fault
Shut down immediately the UPS.
Unplug the UPS from the mains
socket and contact the LEGRAND
Technical Support Service

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Fault error codes
ERROR
CODE
Description
Turn
off
output
Fault
Clear
(how Fault
Clear
works)
Comments
E01
Inverter voltage is
high
Y
Y
E02
Inverter voltage is
low
Y
Y
E03
Output voltage is
short
Y
Y
E06
Relay welding
Y
Y
E11
Inverter soft start
timeout
Y
Y
E17
Charger voltage is
high
N
N
Warning
E18
Comm. with
EEPROM is
abnormal
N
N
Warning.
Will use default setting.
E19
The ambient
temperature is over
Y
N
E20
Overload is present
Y
Y
When the overload curve is
expired, turn off the output
E22
The battery is
disconnected
N
N
Warning.
E23
The battery is weak
N
N
Warning.
E25
The battery voltage
is low warning
N
N
Warning.
E26
The battery voltage
is low and cutoff the
output
Y
N
Low battery and shut down
to protect the battery
E27
The inverter
temperature is over
Y
N
E28
The Fan is lock
N
N
Warning.
E29
The EPO activated
Y
N
Turn off UPS completely,
standard requires that UPS
should be turned off
completely to avoid any
unexpected accidents.