Cover CORE ONE User manual

COMEX S.A.
CSA
-
2
30
7
.0
0
Uninterruptible Power Supply
UPS
COVER CORE ONE
1-3 kVA / kW
User manual
The content of this document is copyrighted by the publisher
and may not be reproduced without prior permission.
We reserve the right to modify design and specifications without
prior notice.
Copyright 2023
COMEX S.A.
All rights reserved.

COMEX S.A.

COMEX S.A.
Contents
1. Safety rules .......................................................................................................................................... 1
2. Transportation, UPS unpacking........................................................................................................... 3
2.1. Horizontal installation in a 19'' rack .......................................................................................... 3
3. Design and connection..................................................................................................................... 4
3.1. Back panel of UPS ...................................................................................................................... 4
3.2. Connection of internal batteries ............................................................................................... 5
3.3. Connection of external batteries .............................................................................................. 5
3.4. Power connection ..................................................................................................................... 6
3.5. Connecting loads to the UPS output ......................................................................................... 6
3.6. Remote REPO switch connection .............................................................................................. 7
3.7. Connection of communication options ..................................................................................... 7
3.8. TVSS connection ........................................................................................................................ 7
4. LCD display support ......................................................................................................................... 8
4.1. Function keys ............................................................................................................................. 8
4.2. LCD panel ................................................................................................................................... 8
4.3. Alarm signals ........................................................................................................................... 10
4.4. LCD display letter abbreviations ............................................................................................. 10
4.5. Settings of UPS ........................................................................................................................ 11
4.6. Description of the UPS operating modes ................................................................................ 14
4.7. UPS warnings and audible alarms ........................................................................................... 15
4.8. Error codes .............................................................................................................................. 16
5. UPS operation ................................................................................................................................ 17
5.1. UPS turning on......................................................................................................................... 17
5.2. UPS turning off ........................................................................................................................ 17
5.3. Battery test .............................................................................................................................. 17
5.4. Mutes the audible alarm ......................................................................................................... 17
5.5. Software installation ............................................................................................................... 17
6. UPS working environment and operation ..................................................................................... 18
6.1. Working conditions ................................................................................................................. 18
6.2. The storage conditions ............................................................................................................ 18
6.3. Battery change ........................................................................................................................ 18

1
1. Safety rules
This manual provides information on the safe use of the UPS. Before unpacking and installing the
power supply, read its contents and follow its recommendations.
MET STANDARDS - EXECUTION
EN 62040-3 Uninterruptible Power Systems (UPS): Performance Methods and
Test Requirements.
STANDARDS MET - ELECTROMAGNETIC COMPATIBILITY
EN 62040-2 :2016 C2 Uninterruptible Power Supply Systems (UPS): Electromagnetic
Compatibility.
EN 61000-2-2 :2002 Electromagnetic Compatibility (EMC): Environment. Compatibility
Levels for IF Conducted Disturbances and signaling in public low-
voltage power supply systems.
EN 61000-4-2 :2009 Electromagnetic compatibility (EMC): Methods of testing and
measurement - testing of resistance to electrostatic discharges.
EN 61000-4-3 :2006
+A2 :2010
Electromagnetic Compatibility (EMC): Testing and Measurement
Methods - Radio Frequency Electromagnetic Field Immunity Test.
EN 61000-4-4 :2012 Electromagnetic Compatibility (EMC): Testing and Measurement
Methods - Immunity testing against series of fast electrical
transients.
EN 61000-4-5 :2014 Electromagnetic Compatibility (EMC): Testing and Measurement
Methods - Surge Immunity Test.
EN 61000-4-6 :2014 Electromagnetic compatibility (EMC): Methods of testing and
measurement - Immunity to conducted disturbances induced by
radio frequency fields.
EN 61000-4-8 :2010 Electromagnetic compatibility (EMC): Methods of testing and
measurement - Testing the resistance to magnetic field with the
frequency of the power grid.
The device complies with Directive 2004/108/EC (EMC).
STANDARDS MET - SAFETY
EN 62040-1 :2017 Uninterruptible Power Systems (UPS): General and UPS safety
requirements.
EN 60950-1:2006 Information technology devices. Security.
IEC 60417 Symbols used on devices
The device complies with Directive 2006/95/EC (LVD).

2
 Keep this manual! The manual contains important instructions for the use of the UPS, which should
be followed during the installation and use of the UPS device and batteries.
 Condensation may occur if the UPS is cold and is brought into a warm room. Therefore, you should
wait at least 2 hours until it starts.
 To reduce the risk of electric shock, the UPS should be installed in a dust-free room with appropriate
temperature and humidity. The ambient temperature must not exceed 40°C.
 Do not install the power supply in a place exposed to direct sunlight or other sources of heat.
 Do not connect devices to the UPS output that may overload it, e.g. laser printers, electric heaters,
etc.
 Cables should be connected and placed in such a way that no one can accidentally step on or
disconnect them.
 The UPS must be connected to a socket with a pin with a functional protective conductor (PE).
 Do not block the ventilation openings in the UPS. Make sure that the vents are uncovered and there
is a minimum of 25 cm of free space for free ventilation.
 The UPS power socket should be protected by a suitable overcurrent circuit breaker.
 The UPS has its own battery power source, so there may be voltage at the output sockets even
though the UPS is not connected to the mains.
 Batteries should be handled by trained personnel who are familiar with the use of batteries and
take appropriate precautions when using them.
 If it is necessary to replace the batteries, use batteries with the same number and the same
parameters, i.e. rated voltage, capacity and dimensions.
ATTENTION! Do not throw batteries into fire. The battery may explode.
ATTENTION! Do not open or damage the battery. The released electrolyte is harmful to
the skin and eyes. It can be toxic.
 The battery may present a risk of electric shock. Observe the following precautions when working
with batteries:
o Remove watches, rings and other metal objects from your hand.
o Use tools with insulated handles.
o Wear rubber gloves and boots.
o Do not place tools or metal parts on top of the battery.
o Disconnect the battery charging source before connecting or disconnecting the battery
terminals.
 Check that the battery is not inadvertently grounded. If present, remove the source of the ground
fault. Contact with any part of a grounded battery can cause electric shock.

3
2. Transportation, UPS unpacking
Check carefully that the carton and contents are not damaged. If any damage is found, immediately
inform the transport company and the distributor of the power supply.
Do not throw away the power supply packaging.
1. If no damage is found, carefully open the carton.
2. Unpack all protective elements (sponges, fillers).
3. Carefully remove the UPS from the protective film and place it on a clean, flat and stable surface.
Only transport the UPS in its original packaging to prevent mechanical damage, shocks
and impacts.
2.1. Horizontal installation in a 19'' rack
The CORE series power supply can be mounted in a 19'' Rack. Both the UPS and the battery module
require 2U space for installation. Each item requires optional brackets (rack rails) for mounting in the
rack.
For proper installation, you must:
Step 1 Step 2
2.2. Vertical installation (Tower)
To install the power supply in the Tower position, use special supports that secure the power supply
and enable its stable positioning in a vertical position. In order to place the power supply correctly,
you should:
Step 1 Step 2 Step 3

4
3. Design and connection
3.1. Back panel of UPS
UPS COVER CORE ONE 1K
UPS COVER CORE ONE 2K
UPS COVER CORE ONE 3K

5
1. Programmable output sockets: can be switched off, intended for less critical loads.
2. Fixed output sockets: for connecting critical loads. Voltage is present on these outlets
whenever the UPS is operating in normal or battery mode.
3. Power socket.
4. TVSS data line surge protection (network, fax, modem).
5. USB port.
6. RS-232 port.
7. Communication slot.
8. Remote Emergency Power Off (EPO) input.
9. Additional battery connector.
3.2. Connection of internal batteries
For safe transportation of the UPS, the battery cables inside the UPS are disconnected. Before
installing the UPS, please follow the instructions below to connect the batteries.
Step 1 Step 2 Step 3
Remove the front panel. Connect the battery plugs. Install the front panel.
3.3. Connection of external batteries
Connect one end of the battery cable to the appropriate socket on the rear panel of the UPS, the other
end to the socket located on the battery module. In the case of more battery modules, the remaining
connections are made between the supplied battery modules as shown in the figure below.
Battery module
Battery module

6
If additional battery modules or external batteries are connected, the UPS should check
and, if necessary, correct the setting of the connected battery capacity.
After connecting the external battery module, switch on the battery circuit by lifting the
protection on the back cover of the battery module (Battery Breaker).
3.4. Power connection
The power supply should be connected to an electrical outlet equipped with a pin with an operational
protective conductor using the cable supplied by the manufacturer. The electrical socket to which the
power supply is connected should be protected by a circuit breaker. The recommended cross-section
of the power cable in the electrical installation is 2.5 mm2. It is recommended to use a separate socket
to power the UPS, protected by its own circuit breaker. The current value for the correct selection of
protection on the UPS power supply is given below.
Power of UPS Minimum protection value
1 kVA 10 A
2 kVA 16 A
3 kVA 20 A
3.5. Connecting loads to the UPS output
The UPS is equipped with standard IEC 320 sockets. Connecting receivers requires the use of standard
IEC 320 C13 - C14 (10A) or IEC 320 C19-C20 (16A) cables. The UPS is equipped with 8 IEC 320-C13 (10A)
sockets and 1 16A (IEC 320-C19) socket.
The UPS has two groups of output sockets: programmable sockets and fixed sockets.
It is recommended to connect critical loads to group 2 sockets, and less important loads to group 1
programmable sockets (see description 3.1.).
In the event of a power failure, you can extend the working time of critical loads (connected to the
group 2 sockets) on the battery by reducing the working time of devices connected to the
programmable sockets (group 1). Programming the working time of devices connected to the
programmable sockets is available from the level of the UPS configuration menu.
Do not connect devices to the UPS output that may overload it, e.g. laser printers, electric
heaters, heaters, etc.
Cables should be connected and placed in such a way that no one can accidentally
disconnect them.

7
3.6. Remote REPO switch connection
The UPS is equipped with an EPO port for connecting a remote REPO (Remote
Emergency Power Off) switch.
By default, the EPO port is configured as NC (normally closed), EPO is activated by
breaking the connection between Pin 1 and Pin 2 (jumper removed).
You can change the EPO configuration to NO (Normally Open) from the Setup
Menu on the LCD. Changing the configuration to NO requires removing the
jumper between Pin 1 and Pin 2.
3.7. Connection of communication options
The UPS has three communication ports:
USB RS-232 Slot SNMP/AS-400
To enable automatic management and monitoring of the UPS, connect the USB cable supplied with
the UPS to the USB port on the UPS on one end and the USB port on the computer on the other.
The software supplied with the UPS allows you to automate the processes of switching on/off the
receivers connected to the UPS depending on the events that occur on the UPS (e.g. power failure,
low battery charge, overload, etc.). The software also allows for ongoing monitoring of operation and
registration of the history of UPS events.
The UPS also has a slot for additional cards, which enables retrofitting with an SNMP network card for
remote communication via the Internet or an AS-400 relay contact card for communication with
external supervision systems, e.g. BMS.
Attention! RS-232 and USB port cannot be used simultaneously.
3.8. TVSS connection
In order to protect the data lines (Internet/fax/telephone) against
surges, the UPS is equipped with an additional TVSS filter. The protected
device should be connected to the sockets located on the rear panel of
the power supply, marked as in the figure beside.

8
4. LCD display support
4.1. Function keys
Button
Fun
ction
ON/MUTE

 Turn on the UPS: press and hold for at least 2 seconds.
 Alarm Silence: When the UPS is running on battery, press and hold for at least 3 seconds
to turn the buzzer on or off.
Does not apply when there is an alarm condition.
 Up Arrow: Key to scroll up to the previous line in the UPS menu.
 Enable self-test mode: press and hold for 3 seconds during normal UPS operation.
OFF/ENTER

 UPS shutdown: press and hold for 2 seconds.
Depending on the configuration of the Bypass mode in the menu: the UPS will switch to
Stand-By mode (no output voltage) or Bypass mode (output voltage from the municipal
network).
 Confirmation of selection: press the key to confirm the selection in the menu.
SELECT

 Switching between display information: press to switch between information displayed
on the panel, such as voltage, frequency, battery voltage, etc.
 Settings menu: press and hold for 5 seconds to enter the UPS settings (configuration)
menu. This function is only available when the UPS is in Bypass or Stand-By mode.
 Down Arrow: Key to scroll down to the next line in the UPS menu.
ON/MUTE

+
SELECT

 Switching to Bypass: During normal operation of the UPS, press the [ON/MUTE] and
[SELECT] keys simultaneously for 3 seconds, the UPS will enter Bypass mode. Transfer to
Bypass is not possible if the supply voltage is outside the acceptable range.
 Exit the menu setting mode or go to the upper menu level: In the setting menu mode,
press the [ON/MUTE] and [SELECT] keys simultaneously for 0.2 seconds to go to the
upper menu level or exit the setting mode menu.
4.2. LCD panel

9
LCD panel Function
Autonomy time information
Displays the estimated working autonomy time of the power supply
H: hours, M: minutes, S: seconds
Configuration and error information
Displays the parameter value. Description of possible indications is contained
in subchapter 4.5.
Displays an error or warning code. Error and warning codes
are described in
sections 4.7. and 4.8.
Sound signaling
Indicate that the beeper is off
Output information
Wyświetla wartości napięcia i częstotliwości wyjściowej:
VAC: napięcie AC [V], Hz: częstotliwość [Hz], A: prąd [A]
Informacje o obciążeniu
Indicates load level 0-24%, 25-49%, 50-74%, and 75-100%.
Indicates an overload condition.
Indicates a short circuit condition on the UPS output.
Information about programmed outputs
Indicates whether a group of programmable sockets is configured.
Operating mode information
Indicates that the UPS is connected to the utility grid.
Indicates that the batteries are connected to the UPS.
Indicates that Bypass is active.
Indicates that ECO mode is on.
Indicates that the UPS inverter is running.
Indicates that the output voltage is present.
Indicates that the UPS is in frequency converter mode.
Battery information
Indicates 0-24%, 25-49%, 50-74%, and 75-100% charge.
Indicates a damaged battery.
Indicates a low battery level.
Input and battery information
Displays input voltage, frequency and battery voltage:
VAC: AC voltage [V], VDC: DC voltage [V], Hz: frequency [Hz]

10
4.3. Alarm signals
Battery mode Beeps every 5 seconds.
Low voltage of battery Beeps every 2 seconds.
Overload Beeps every 1 second.
Error Continuous signal.
Bypass mode Beeps every 10 seconds.
4.4. LCD display letter abbreviations
Abbreviation Display indication Meaning
AC EPO NO - normally open (active after short circuit)
AO EPO NC - normally closed (active when open)
BR Battery change
CH Charger
DIS Disable
EAT
Estimated autonomy time
EE Error EEPROM
ENA Enable
EP EPO - emergency shutdown (necessary restart)
ESC Escape
FU Bypass frequency unstable
HLS High voltage level
LLS Low voltage level
OI Input current too high
OK
OK!
ON Turning on
RAT Current time of battery operation
SD
Shut-Down
SF Phase - neutral connection sequence error
TP Temperature

11
4.5. Settings of UPS
The configuration menu is active when the UPS is turned off
(Stand-by mode) or in Bypass mode. To enter the configuration
menu, press the SELECT key for 3 seconds as described in chapter
4.1.
Parameter 1: number of the next menu item.
Parameter 2 and Parameter 3: values of a given parameter (e.g.
230Vac – output voltage value) or configuration.
Display status
Settings
01
-
Setting the output voltage value
200: indicates 200Vac output voltage
208: indicates 208Vac output voltage
220: indicates 220Vac output voltage
230: indicates 230Vac output voltage (default)
240: indicates 240Vac output voltage
02
–
Frequency converter available/unavailable
ENA: Converter function available
DIS: Converter function unavailable (default)
03
-
Frequency setting
Battery frequency setting:
BAT 50: output frequency 50Hz
BAT 60: output frequency 60Hz
When the UPS works as a converter, you can select the voltage
frequency:
CF 50: output frequency 50Hz
CF 60: output frequency 60Hz
04
–
ECO
Mode
Economy mode availability setting (ECO mode)
ENA: ECO function available
DIS: ECO function unavailable (default)
0
5
–
Voltage tolerance range in ECO mode
Settings of the lower and
upper limits of the supply voltage for ECO
mode.
HLS: upper supply voltage range. Using the arrow keys, it is possible to
select the range +7V ÷ +24V from the nominal value, e.g. 230V (default
+12V).
LLS: lower supply voltage range. Using the arrow keys, it is possible to
select the range 77V ÷ -24V from the nominal value, e.g. 230V (default
-12V).
Parameter 3
Parameter 1
Parameter 2

12
0
6
–
Bypass availability when the inverter is off
Set the availability of Bypass when the UPS is turned off.
ENA: Bypass available
DIS: Bypass disabled (default)
0
7
–
Bypass voltage tolerance range
Setting the lower and upper limits of the supply voltage for Bypass.
Exceeding the declared voltage thresholds causes unavailability of the
Bypass track.
HLS: Bypass voltage upper threshold. Using the arrow keys, it is
possible to select the voltage 230V ÷ 264V (default 264V).
LLS: Bypass voltage lower threshold. Using the arrow keys, it is possible
to select the voltage 170V ÷ 220V (default 170V).
0
8
–
Bypass frequency tolerance range
Setting the lower and upper limits of the supply voltage frequency for
Bypass. Exceeding the declared frequency thresholds causes
unavailability of the Bypass path.
HLS: Bypass frequency upper threshold. Use the arrow keys to select
51Hz ÷ 55Hz (default 53Hz).
LLS: Bypass frequency low threshold. Use the arrow keys to select 45Hz
÷ 49Hz (default 47Hz).
09
–
Programmable group of output sockets
ENA: Socket programming function available
DIS: Socket programming not available (default)
1
0
-
Setting the voltage availability time on the programmable sockets
Setting the working time limit of devices connected to the
programmable sockets 0 - 999 minutes in the battery mode. The time
is counted from the moment the UPS enters the battery operation
mode (999 minutes by default).
1
1
-
Battery autonomy time limitation
Parameter 2: Setting the maximum battery life 0
-
999 minutes for
critical (non-programmed) outlets.
DIS: Restriction lock. Autonomy depends on battery capacity. (default)
Attention! Setting the value to "0" means an autonomy of 10 seconds.

13
1
2
-
Setting the total battery capacity
Parameter 2: Set the capacity of the installed batteries [Ah].
7 - 999: Total battery capacity in Ah.
In the case of several strings, the total capacity of the installed batteries
must be stated
1
3
–
Charging current limitation
Setting the maximum battery charging current.
1/2/3/4/8 A: Maximum battery charging current (default 2A).
The maximum battery charging current should be in the range of 0.1C-
0.3C. It is recommended to set the value around 0.1C.
E.g. for a battery: 9Ah*0.1=0.9A set to 1A;
45Ah*0.1=4.5A set to 4A
14
–
Boost charging voltage setting (equalization voltage)
Setting the
charging voltage value in boost mode.
225-240: charging voltage value x 0.01V/cell
(default 236 - means 2.36V/cell).
1
5
–
Float charging voltage setting (float voltage)
Setting the charging voltage in float mode.
220-233: charging voltage value x 0.01V/cell
(default 228 - means 2.28V/cell).
1
6
–
EPO operating logic setting
Setting the operation logic of the EPO input.
AO: Active open - indicates the state of the EPO pins in the NC
configuration (normally closed). Open means EPO is activated
(default).
AC: Active Closed - indicates the state of the EPO pins in the NO
(normally open) configuration. Closing the connection means EPO is
activated.
17
–
Output isolation transformer
ENA: An output transformer can be used.
DIS: Output transformer cannot be used (default).

14
18
–
Display of autonomy time during battery operation
EAT: Remaining battery life is displayed (default).
RAT: the working time elapsed since the power failure is displayed.
19
–
Acceptable input
voltage range
Settings for the lower and upper limits of the supply voltage for the
UPS. Exceeding the declared voltage thresholds results in battery
operation.
HLS: high voltage threshold. Use the arrow keys to select
280/290/300V (default 300V).
LLS: lower voltage threshold. Use the arrow keys to select
110/120/130/140/150/160V (default 110V).
00
–
Exit the settings menu
Exits the UPS configuration menu.
4.6. Description of the UPS operating modes
Working mode Description Display status
Normal mode
(On Line)
If the supply voltage is within tolerance, the
UPS supplies the loads directly from the mains.
In this mode, after the battery is fully charged,
the fans are turned off to increase the
efficiency of the device.
ECO mode
If the supply voltage is within tolerance, the
UPS operates in Bypass mode, the batteries
are charged, but the inverter is in Stand-by
mode, which increases efficiency and reduces
operating costs.
Frequency
converter mode
If the frequency of the
supply voltage is within
the range of 40÷70Hz, it is possible to set a
fixed value of the output voltage frequency of
50 or 60Hz. In this mode, the batteries are also
charged.
Battery mode
In the event of a power failure or when the
input voltage is out of tolerance to maintain
the output voltage within the required
tolerance, the UPS transfers to battery
operation. A beep sounds every 5 seconds.

15
Bypass mode
If the supply voltage is within the acceptable
range and an overload or any other event
occurs, the UPS will transfer to Bypass mode.
A beep sounds every 10 seconds.
Stand-by mode
The UPS is off, there is no output voltage, but
the batteries are being charged.
Alarm
In emergency mode, the UPS indicates the
error code and icons associated with the
event.
4.7. UPS warnings and audible alarms
Warning Icon (flashing)
Code
Sound signal
Low battery voltage Every 2 seconds
Overload Every 1 second.
Batteries not connected Every 2 seconds
Battery overcharged Every 2 seconds
Input current too high 2 times every 10
seconds
Phase error (phase/neutral) Every 2 seconds
Active EPO (Fire Shutdown) Every 2 seconds
Overheating Every 2 seconds
Charger damaged Every 2 seconds
Battery damage Every 2 seconds.
(UPS off)
Bypass voltage out of tolerance Every 2 seconds
Bypass frequency unstable
Every 2 seconds
Error EEPROM
Every 2 seconds
Battery replacement required Every 2 seconds

16
4.8. Error codes
Error Code Icon Error Code Icon
BUS start error 01 X Battery voltage too high 27
BUS start error 02 X Battery voltage too low 28
BUS voltage low 03 X Charging system shorted 2A X
Inverter start error 11 X Temperature too high 41 X
Inverter voltage high 12 X Overload 43
Inverter voltage low 13 X Damage to the charging system 45 X
Inverter output short circuit 14 Input current too high 49 X

17
5. UPS operation
5.1. UPS turning on
To turn on the UPS, press and hold the ON/Mute button on the UPS display for 2 seconds.
Attention! For maximum autonomy, charge the batteries for at least 10 hours after first use. Maximum
battery capacity is reached after two complete discharge/charge cycles.
5.2. UPS turning off
To turn off the UPS, press and hold the OFF/ENTER button on the UPS display for 2 seconds. Depending
on the setting of parameter 06 of the settings menu (see section 4.5.) - Bypass availability, the UPS will
disconnect the output or switch to Electronic Bypass mode.
To completely shut down the UPS, disconnect the power cord.
5.3. Battery test
To activate the test function in the UPS, press and hold the ON/MUTE key for 3 seconds when the UPS
is operating in normal, economic or converter mode. The UPS will perform a self-test and then return
to the previous operating state by itself.
5.4. Mutes the audible alarm
When the UPS is operating on battery, beeps are emitted. To mute the UPS, press and hold the
ON/MUTE key for 3 seconds.
5.5. Software installation
To take full advantage of the UPS, install the supplied ViewPower communication software.
During the installation, follow the instructions on the computer screen.
After the installation process is complete, restart your computer. Restarting the computer will
automatically start ViewPower, which is indicated by the appearance of the ViewPower icon in the
Windows system tray.