COMEX COVER CORE 6K User manual

COMEX S.A.
CSA-2120.01
Uninterruptible Power Supply UPS
COVER CORE
6-10 kVA
User manual
The content of this document is the copyright of the publisher
and may not be reproduced without prior permission.
The right to modify the design and specifications is reserved without
prior notice.
Copyright 2021
COMEX S.A.
All rights reserved.

COMEX S.A.
Table of Contents
1. Safety rules.......................................................................................................................................1
2. Transport, unpacking the UPS .........................................................................................................3
2.1. Horizontal assembly in the Rack 19 '' cabinet.......................................................................3
2.2. Vertical mounting (tower) .....................................................................................................4
3. Appearance and connection............................................................................................................5
3.1. Rear panel of the UPS and battery module...........................................................................5
3.2. Connecting external batteries...............................................................................................6
3.3. Connecting the power supply and receivers.........................................................................7
3.4. Connection of remote EPO switch ........................................................................................7
3.5. Control connector of the external EMBS service bypass ......................................................7
3.6. Connection of communication options.................................................................................8
4. LCD display operation ......................................................................................................................9
4.1. Function keys.........................................................................................................................9
4.2. LED indicators ......................................................................................................................10
4.3. LCD display...........................................................................................................................11
4.4. Alarm signals........................................................................................................................12
4.5. LCD display letter abbreviations..........................................................................................12
4.6. UPS settings menu...............................................................................................................13
4.7. Description of the UPS operation modes............................................................................15
4.8. UPS warnings and audible alarms .......................................................................................17
4.9. Warning codes.....................................................................................................................17
4.10. Fault Codes - Active in Fault Mode (Fault LED active).........................................................18
5. UPS operation ................................................................................................................................19
5.1. Turn on the UPS from the mains.........................................................................................19
5.2. UPS shutdown......................................................................................................................19
5.3. Turn on the UPS from the battery.......................................................................................19
5.4. Transferring the UPS to the Maintenance Bypass mode ....................................................20
5.5. Transferring the UPS from Maintenance Bypass mode to normal operation ....................20
5.6. Battery test ..........................................................................................................................20
5.7. Mute the audible alarm.......................................................................................................20
5.8. Installing the software.........................................................................................................20
5.9. Working conditions..............................................................................................................21
5.10. The storage conditions ........................................................................................................21
5.11. Battery change.....................................................................................................................21

1
1. Safety rules
This manual provides information on the safe use of the UPS. Before unpacking and installing the UPS,
read its contents and follow its instructions.
FULFILLED STANDARDS - EXECUTION
EN 62040-3
Uninterruptible Power Systems (UPS): Methods for determining
the characteristics and test requirements.
FULFILLED STANDARDS - ELECTROMAGNETIC COMPATIBILITY
EN 62040-2 :2006 C3
Unsupported Power Systems (UPS): Electromagnetic
Compatibility.
EN 61000-2-2 :2002
Electromagnetic Compatibility (EMC): Environment. Compatibility
levels for conducted low-frequency disorders and signaling in
public low-voltage power supply systems.
EN 61000-4-2 :2009
Electromagnetic Compatibility (EMC): Testing and measurement
methods - electrostatic discharge immunity test.
EN 61000-4-3 :2006
+A1 :2008 +A2 :2010
Electromagnetic Compatibility (EMC): Test and Measurement
Methods - Radio Frequency Electromagnetic Field Immunity Test.
EN 61000-4-4 :2004
+A1 :2010
Electromagnetic Compatibility (EMC): Test and Measurement
Methods - Test of immunity to a series of fast electrical transients.
EN 61000-4-5 :2006
Electromagnetic Compatibility (EMC): Testing and Measurement
Methods - Surge Immunity Test.
EN 61000-4-6 :2009
Electromagnetic compatibility (EMC): Test and measurement
methods - Immunity to conducted disturbances, induced by radio
frequency fields.
EN 61000-4-8 :2010
Electromagnetic Compatibility (EMC): Testing and measurement
methods - Testing resistance to magnetic field at the frequency of
the power grid.
The device complies with the Directive 2004/108 / EC (EMC).
FULFILLED STANDARDS - SAFETY
EN 62040-1 :2008
Uninterruptible Power Systems (UPS): General requirements and
requirements for UPS safety.
EN 60950-1:2006
Information technology devices. Security.
IEC 60417
Symbols used on devices.
The device complies with the 2006/95 / EC (LVD) directive.
警告
危险
警告
危险
警告
危险

2
•Keep these operating instructions! The manual contains important instructions on the use of the
UPS that should be followed during installation and use of the UPS device and batteries.
•Condensation may occur if the power supply is cold and is brought into a warm place. Therefore,
you should wait at least 2 hours until it starts up.
•To reduce the risk of electric shock, the UPS should be installed in a pollution-free room with
adequate 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 heat sources.
•Do not connect devices that can overload the UPS output, e.g. laser printers, electric heaters, etc.
•Cables should be connected and arranged in such a way that no one can accidentally step on or
disconnect them.
•The UPS must be connected to the electrical system with an efficient protective earth (GND).
•Do not block the ventilation openings on the UPS. Make sure the vents are exposed and there is a
minimum of 25cm free space for free ventilation.
•The UPS power circuit should be protected with an appropriate overcurrent circuit breaker.
•The UPS has its own battery power source, so there may be voltage on the output strip, even
though the UPS is not connected to the mains.
•Battery handling should be performed by trained personnel who are knowledgeable about battery
operation and take appropriate precautions during its use.
•If it is necessary to replace the battery, use batteries of the same number and parameters, i.e. rated
voltage, capacity and dimensions.
ATTENTION! Do not throw batteries into fire. The battery may explode.
ATTENTION! Do not open or mutilate the battery.
Released electrolyte is harmful to the skin and eyes and may be toxic.
•The battery can present a risk of electric shock. The following precautions should be taken when
working with batteries:
oRemove watches, rings and other metal objects from your hand.
oUse tools with insulated handles.
oWear rubber gloves and boots.
oDo not lay tools or metal parts on top of the battery.
oDisconnect 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 result in electric shock.

3
2. Transport, unpacking the UPS
Check carefully whether the carton and the contents are not damaged. If any damage is found,
immediately inform the shipping company and the power supply distributor.
Do not throw away the UPS packaging.
1. If no damage is found, carefully open the carton.
2. Unpack all protective elements (sponges, fillers).
3. Gently remove the UPS from the protective film and place it on a clean, flat and stable surface.
To prevent mechanical damage, shock and impact, only transport the UPS in its original
packaging.
All models of the CORE 6K and 10K power supplies are suitable for both horizontal and vertical
mounting.
2.1. Horizontal assembly in the Rack 19 '' cabinet
The CORE series power supply can be mounted in a Rack 19 '' housing. The following space is required
for installation:
•for a UPS of 2U height and depth greater than 60 cm,
•for a 3U high battery module and depth greater than 60 cm.
Each element requires the use of brackets for mounting in a rack.
You can also use the so-called rails. Rail Kit 19 ”- available as optional equipment.
For proper installation:
Step 1
Step 2

4
2.2. Vertical mounting (tower)
To install the power supply in the Tower position, you need to use special stands that secure the power
supply and enable its stable placement in a vertical position. The set of stands includes short and long
connecting elements, depending on the width of the UPS set.
In order to place the power supply correctly:
Step 1
Step 2
Step 3
In order to properly place the power supply and the battery module (5U set):
Step 1
Step 2
Step 3

5
3. Appearance and connection
3.1. Rear panel of the UPS and battery module
Fig. 1 COVER CORE 6-10K power supply
Fig. 2 EBM 6/10 - 3U battery module.
1. Current connectors (only for the parallel operation version) - option.
2. Parallel operation connectors (only for the parallel operation version) - option.
3. External battery connector.
4. INTELLIGENT SLOT communication card slot (LAN card, AS400, RS485).
5. RS-232 communication port.
6. USB communication port.
7. Remote Emergency Power Off (EPO) connector.
8. UPS power circuit fuse.
9. Output terminal.
10. Input terminal (UPS power).
11. Fans.
12. Control connector of the external EMBS service bypass.
13. Battery circuit breaker.
14. Extra battery connector.
15. Ground connection.
15

6
3.2. Connecting external batteries
Make sure there is a battery circuit breaker between the UPS and the battery module.
Before connecting the battery module and the UPS, the circuit breaker must be turned
OFF.
Make sure the number of batteries in the battery module is appropriate for the amount
for which the UPS has been configured. The standard quantity of 12 V batteries for the
UPS is 20.
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 in the figure below.
If it is necessary to extend the autonomy time, the power supply has the option of connecting a battery
with a much larger capacity, thanks to the fact that it is equipped with an adjustable Charger with a
capacity of 4A. Changes to the settings of the maximum battery charging current are made by an
authorized service of the PSU manufacturer.
When using larger capacity external batteries, placed on racks or in cabinets, special
attention should be paid to the installation of an additional disconnector in the battery
circuit, the correct polarity of the cables connected to the UPS battery and the number of
batteries used.
Incorrect connection of the "+" and "-" wires or connection of the wrong number of
batteries may cause permanent damage to the UPS and the batteries.
UPS
Battery module
Battery module

7
3.3. Connecting the power supply and receivers
The CORE 6K and 10K UPS is designed for permanent connection through the terminal block located
on the back of the UPS, as shown in the figure below.
OUTPUT
INPUT
GND
L
N
L
N
GND
UPS adapted for installation in a single-phase, three-wire installation,
TN with a grounded neutral.
The UPS should be connected to a separate electrical installation, made in accordance with the
manufacturer's Installation Recommendations. Installation should be carried out in accordance with
the regulations and rules in force in a given country. The UPS power supply circuit should be protected
with a circuit breaker or a fuse with the trip current value required in the recommendations. It is not
recommended to use residual current devices in the UPS input.
Cables should be connected and arranged in such a way that no one can accidentally
disconnect them.
3.4. Connection of remote EPO switch
The UPS is equipped with an EPO port for connecting a remote emergency stop
switch. / REPO (Remote Emergency Power Off). By default, the EPO port is configured
as NC (normally closed), activation of EPO takes place by breaking the connection
between Pin 1 and Pin 2 (removal of the jumper).
It is possible to change the EPO configuration to NO (normally open) - contact an
authorized service center. Changing the configuration to NO causes the need to remove the jumper
between Pin 1 and Pin 2.
3.5. Control connector of the external EMBS service bypass
The EMBS connector is used to connect the auxiliary contacts of the External
Maintenance Bypass switch to ensure that the UPS inverter is shut down when the
External Bypass is turned on.
The EMBS connector is NO (normally open) type.
A short circuit (between Pin 1 and Pin 2) causes the inverter to shut down.
EPO
EMBS

8
3.6. 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 device, on one side to the USB socket on the UPS and on the other side to the USB socket on the
computer.
The software provided with the UPS allows you to automate the processes of switching on and off the
receivers connected to the UPS depending on the events that occur on the UPS (e.g. power failure,
low battery level). The software also allows for ongoing monitoring and logging of UPS event history.
RS232 and USB ports cannot be used simultaneously.
The UPS also has an INTELLIGENT SLOT for additional cards, allowing for the use of communication
options. Additionally, you can connect to the device:
•LAN card - allowing communication via LAN / WAN with the use of e.g. protocols: WWW, SNMP,
Modbus TCP,
•AS-400 relay contact card for communication with external supervision systems, e.g. BMS, alarm
control units,
•Modbus card with RS485 port, allowing communication using the Modbus RTU protocol, e.g. with
BMS systems.

9
4. LCD display operation
4.1. Function keys
There are 4 buttons on the control panel of the UPS which are used to operate the UPS and the LCD.
Button
Function
ON/ENTER
•Turn on the UPS: Press and hold for more than 0.5 seconds to turn on the
UPS.
•ENTER: Press the key to confirm the selection in the UPS menu.
OFF/ESC
•UPS shutdown: Press and hold for more than 0.5 seconds to turn off the
UPS.
•ESC: Press the key to return to the previous menu page.
TEST/UP
•Battery test: Press and hold for more than 0.5 seconds during normal
operation of the UPS to activate the test.
•Up arrow: Key to scroll up to the previous line in the UPS setup menu.
MUTE/DOWN
•Mute the alarm: When the UPS is on battery, press and hold for more
than 0.5 seconds to silence or enable the buzzer. Alarm silencing is not
possible in the event of an alarm condition.
•Down arrow: Key for scrolling down to the next line in the UPS setup
menu.
TEST/UU +
MUTE/DOWN
•Menu entry or exit: Press both buttons simultaneously for more than 1
second to enter or exit the UPS settings menu.

10
4.2. LED indicators
The UPS is equipped with an intuitive LCD panel and four LED indicators for easy reading of the UPS
status UPS.
The status of the LEDs determines the current operating status of the power supply and is described
in the table below:
LED
Mode
Bypass
Line
Battery
Fault
UPS start
●
●
●
●
No output
○
○
○
○
Bypass mode
●
○
○
○
Normal mode
○
●
○
○
Battery mode
○
○
●
○
Converter mode
○
●
○
○
Battery test
●
●
●
○
ECO mode
●
●
○
○
Error Mode
○
○
○
●

11
4.3. LCD display
LCD
Function
Information about the time of autonomy
Displays the estimated autonomy of the UPS
H: hours, M: minutes, S: seconds
Configuration and error information
Indicates that an error or warning occurs.
Displays an error or warning code.
Output information
Displays the voltage or frequency parameters and the battery voltage.
Vac: output voltage, Hz: output frequency, Vdc: battery voltage
Load information
Indicates the load level of 0-24%, 25-49%, 50-74%, and 75-100%.
Indicates an overload condition.
Indicates a short circuit condition at the device output.
Information about the operating mode
Indicates that the UPS is connected to the 230V mains.
Indicates that the UPS is running on battery.
Indicates the UPS is in Bypass mode.
Indicates that the ECO mode is on.
Indicates that the UPS inverter is running.
Indicates that the output voltage is present.
Indicates the sound on the UPS is muted.

12
Battery information
Indicates a charge level of 0-24%, 25-49%, 50-74%, and 75-100%.
Indicates a defective battery condition.
Indicates a low battery voltage condition.
Information about power supply parameters and battery voltage
Displays input voltage and frequency parameters and battery voltage.
Vac: 230V mains voltage, Vdc: battery voltage, Hz: mains frequency
4.4. Alarm signals
Battery mode
Beep every 4 seconds.
Bypass mode
Beep every 2 minutes.
Overload
Beep 2x / second.
Error
Continuous tone.
4.5. LCD display letter abbreviations
Short
Wskazanie wyświetlacza
Meaning (eng.)
ENA
Enabled
DIS
Disabled
ATO
Auto
BAT
Battery
NCF
Normal mode
CF
Converter mode
SUB
Subtract
ADD
Add
ON
Turn ON
OFF
Turn OFF
FBD
Not allowed
OPN
Allowed
RES
Reserved
OP.V
Output voltage
PAR
Parallel mode

13
4.6. UPS settings menu
To enter the configuration menu, press the Test / Up + MUTE / Down buttons simultaneously for more
than 1 second. View of the configuration menu and description of the possible settings below.
To access all settings, the UPS should be in Stand-by mode (no voltage at the UPS output) or Bypass
mode (parameters 15 and 16 are available while the inverter is running).
Parameter 1
Indicates the number assigned to a specific parameter as
described below, e.g. 01 - output voltage.
Parameter 2 and 3
Indicates a value specific for a given parameter, e.g. 230
- the value of the output voltage.
Display state
Settings
01 - Setting the output voltage value
208: Indicates 208Vac output voltage
220: Indicates 220Vac output voltage
230: indicates 230Vac output voltage (default)
240: Indicates 240Vac output voltage
02 –The output frequency
60 Hz, CVCF mode
50 Hz, Normal mode
ATO
Parameter 2: The output frequency
Allows you to select the frequency:
50Hz: The output frequency is 50Hz
60Hz: The output frequency is 60Hz
ATO: autosensing. The UPS automatically detects the frequency of the
utility voltage.
Parameter 3: UPS operating mode
CF: UPS works as a frequency converter. The output frequency value
should be set to 50 or 60 Hz.
NCF: The UPS works in normal mode, within the tolerance of the input
frequency, the UPS synchronizes to the mains frequency.
Exceeding the permissible frequency tolerance causes the UPS to
switch to battery operation.
Attention! In CF - frequency converter mode, the Bypass function is
automatically blocked.
03 - Voltage tolerance range for Bypass
Parameter 2: Lower Voltage Tolerance Range for Bypass.
The value is adjustable from 110-209V (default 110V).
Parameter 3: High Voltage Tolerance Range for Bypass.
The value is adjustable from 231-276V (default 264V).
3
1
2

14
04 –Frequency tolerance range for Bypass
Parameter 2: Lower Voltage Tolerance Range for Bypass.
50Hz: possible settings 46-49Hz (default 46Hz)
60Hz: possible settings 56-59Hz (default 56Hz)
Parameter 3: High voltage tolerances for Bypass.
50Hz: possible settings 51-54Hz (default 54Hz)
60Hz: possible settings 61-64Hz (default 64Hz)
05 –ECO mode
Set the availability of economy mode
ENA: ECO function available
DIS: ECO function unavailable (default)
06 –Voltage tolerance range in ECO mode
Parameter 2: Setting the lower voltage tolerance for ECO mode.
Possible settings -5% ÷ -10% of the nominal value of the input voltage.
Parameter 3: Setting the upper voltage tolerance for ECO mode.
Possible settings + 5% ÷ + 10% of the nominal value of the input
voltage.
07 –Frequency tolerance range in ECO mode
Parameter 2: Low frequency tolerance setting for ECO mode. Possible
settings:
50Hz: 46Hz ÷ 48Hz (default 48Hz)
60Hz: 56Hz ÷ 58Hz (default 58Hz)
Parameter 3: Setting the upper frequency tolerance for ECO mode.
Possible settings:
50Hz: 52Hz ÷ 54Hz (default 52Hz)
60Hz: 62Hz ÷ 64Hz (default 62Hz)
08 –Bypass mode settings
Parameter 2:
OPN: Bypass allowed. UPS can work in Bypass mode depending on
available / unavailable setting.
FBD: Bypass not allowed under any circumstances.
Parameter 3:
EAW: Bypass available.
DIS: Bypass unavailable - it means that the bypass can not be forced
manually from the LCD panel. Automatic bypass available.
09 –Battery autonomy limitation
Parameter 2: Setting the maximum battery life 0 - 999 minutes for
critical (non-programmable) sockets.
DIS: Restriction lock. Autonomy depending on battery capacity.
(default)
Attention! Setting the value to "0" - means an autonomy of 10 seconds.
10, 11 –Reserve (No functions available)
12 –Hot Standby feature available
Enables or disables the Hot Standby HS.H function
YES: Function available. It enables the UPS to restart after the supply
voltage is restored, even without the batteries connected.
NO: Function disabled. The UPS is operating normally and will not turn
on without the batteries connected.

15
13 –Battery voltage regulation
Parameter 2: Choose “Add” or “Sub” to make battery voltage Up /
Down adjustment.
Parameter 3: Voltage regulation range 0 - 5.7V (default 0V).
14 –Charger voltage adjustment
Parameter 2: Choose “Add” or “Sub” to make the Charger Voltage Up
/ Down adjustment.
Parameter 3: Voltage regulation range 0 - 9.9V (default 0V).
The batteries must be disconnected before calibrating.
15 –Inverter voltage regulation
Parameter 2: Choose “Add” or “Sub” to make the Charger Voltage Up
/ Down adjustment.
Parameter 3: voltage adjustment range 0 - 6.4V (default 0V).
16 –Adjusting the output voltage
If the output voltage cannot be identified (below 50V) in the menu it is
not possible to make changes.
Parameter 2: Indicates the OP.V output voltage
Parameter 3: Indicates the UPS output voltage measured inside the
UPS. Using the arrow keys, calibrate the value of the output voltage to
the actual value indicated by the meter. The result of the calibration is
obtained by confirming the change with the Enter key. Voltage
regulation range +/- 9V.
17 –Setting and adjustment of the charging current
Parameter 2: Charging current 001-004 means 1.2, 3, 4 A respectively
Parameter 3: Correction of the charging current "+" or "-" by 0.1x the
set value.
For example, "+" "3" means the current is increased by +0.3A
4.7. Description of the UPS operation modes
Operation mode
Description
LCD status
Normal mode
(OnLine)
In all online UPSs, fans are working all the time. The only difference is with speed
rotation –it depends on the temperaturę and the load, but are working non stop.

16
ECO mode
Economy mode
If the supply voltage is within tolerance, the supply voltage is supplied directly to the
UPS output. The inverter is in Stand-by mode, which increases efficiency and reduces
operating costs.
CVCF converter
mode
If the frequency of the supply voltage is within the range of 46 ÷ 64Hz, it is possible to
set a fixed value of the frequency of the output voltage 50 or 60Hz. In this mode, the
batteries are also charged.
Battery
operation mode
In the event of a power failure or when the supply voltage is beyond the tolerance
allowing the output voltage to be kept within the required tolerance, the UPS switches
to battery operation. The beep sounds every 4 seconds.
Bypass mode
If the mains voltage is within the acceptable tolerance limits, but an overload or any
other event occurs, the UPS will switch to Bypass mode. The acoustic signal is issued
every 2 minutes.
Battery test
Pressing the "Test" key for half a second while the UPS is in normal mode or in frequency
converter mode, will force the battery test.
Alarm
In emergency mode, the UPS indicates the error code and the icons associated with the
event.

17
4.8. UPS warnings and audible alarms
Warning
Icon (blinks)
Alarm
Low battery voltage
Beeps every second
Overload
Beep 2x / second
Battery non connected
Beeps every second
Overload
Beeps every second
Power fuse damaged
Beeps every second
EPO input active
Beeps every second
Fan error / Overheating
Beeps every second
Charger damaged
Beeps every second
3 times overload within 30 min.
Beeps every second
4.9. Warning codes
Code
Warning
Code
Ostrzeżenie
01
Batteries not connected
21
EC supply differences - parallel operation
07
Battery overcharging
22
Differences on Bypass - Parallel Work
08
Batteries are discharged
33
Bypass blocked - 3 overloads in 30 min.
09
Overload
3A
EBMS active (External Bypass connector)
0A
Fan error
3D
Unstable Bypass parameters
0B
EPO active
3E
No bootloader
0D
Overheated
42
Transformer overheating
0E
Charger failure
44
Loss of redundancy - parallel operation
10
L1 WE fuse blows
45
Overload - parallel operation

18
4.10. Fault Codes - Active in Fault Mode (Fault LED active)
Code
Icon
Fail
01
-
BUS start error
02
-
High BUS voltage
03
-
BUS low voltage
04
-
BUS voltage unbalance
11
-
Inverter start error
12
-
Inverter voltage is too high
13
-
Inverter voltage is too low
14
Short circuit on the inverter output
1A
-
Reverse power at the inverter output
21
-
Battery thyristor short circuit
24
-
Inverter relay shorted
2A
-
Charger short circuit
31
-
CAN communication error
41
-
Overheated
42
-
CPU communication error
43
Overload
60
-
Inverter current too high
6A
-
Battery startup error
6B
-
PFC damage
6C
-
BUS voltage ripple
6D
-
Inverter current measurement error
6E
-
Damage to the SPS 12 V power supply