MAXIGLOBAL MODSECUR MT 30 User manual

MODSECUR MT 30

Table of contents
1. Precautions.......................................................................................................................................1
2. Installation procedure..................................................................................................................3
2.1. Introduction..................................................................................................................................3
2.2 Initial inspection..........................................................................................................................4
2.3. Location.........................................................................................................................................4
2.3.1. UPS room...................................................................................................................................4
2.3.2. Battery room.............................................................................................................................4
2.3.3. Storage........................................................................................................................................5
2.4. Unpacking, checking and setting.........................................................................................5
2.4.1. Unpacking.................................................................................................................................5
2.4.2. The appearance and dimensions of the UPS................................................................7
2.4.3. Service space............................................................................................................................8
2.5. Security elements.......................................................................................................................8
2.5.1. UPS input power......................................................................................................................9
2.5.2. Battery circuit protection.....................................................................................................9
2.6. Power cables..............................................................................................................................10
2.6.1. Maximum power supply currents...................................................................................11
2.6.2. Connecting the AC cables.................................................................................................12
2.6.3. Battery connection...............................................................................................................14
2.7. Communication........................................................................................................................16
2.7.1. Dry Contact IN / OUT communication..........................................................................16
2.7.2. Parallel connection..............................................................................................................20
2.7.3. Communication card slots................................................................................................20
2.7.4. Modbus RTU / RS485 connector.....................................................................................21
3. UPS operation modes................................................................................................................22
3.1. Introduction...............................................................................................................................22
3.2. Principle of operation.............................................................................................................22
3.2.1. Bypass module......................................................................................................................23
3.3. Power supply operation modes..........................................................................................23
3.3.1. Normal operation (On Line)..............................................................................................23
3.3.2. Battery operation..................................................................................................................24
3.3.3. Automatic restart..................................................................................................................24
3.3.4. Electronic bypass..................................................................................................................24
3.3.5. Service bypass.......................................................................................................................24
3.3.6. Economical (ECO).................................................................................................................25
3.3.7. Frequency converter...........................................................................................................25
3.3.8. Parallel operation.................................................................................................................25
4. User manual for the power supply.......................................................................................26
4.1. Power connectors....................................................................................................................26
4.2. Procedures for starting the power supply - single operation..................................27

IV
4.2.2. Running the UPS from the battery.................................................................................27
4.3. Procedures for switching the power supply between operating modes............27
4.3.1. Switching from normal operation to battery mode................................................28
4.3.2. Switching from normal operation to bypass operation.........................................28
4.3.3. Switching from Bypass to normal operation..............................................................28
4.3.4. Switching from the normal operation mode to the Service Bypass mode.....29
4.3.5. Switching from the Service Bypass mode to normal operation.........................30
4.4. Procedure of complete disconnection of the power supply (power supply to
the loads through a mechanical bypass)................................................................................30
4.5. EPO emergency shutdown...................................................................................................30
4.6. Procedures for starting the power supply - parallel operation...............................30
5. LCD panel operation...................................................................................................................31
5.1. Introduction...............................................................................................................................31
5.2. Indications of the UPS operating status on the display.............................................32
5.3. Reading the operating parameters...................................................................................34
5.3.1. Power supply of the bypass line.....................................................................................34
5.3.2. Rectifier track supply...........................................................................................................36
5.3.3. Batteries...................................................................................................................................36
5.3.4. UPS Output.............................................................................................................................37
5.4. Event log......................................................................................................................................37
5.4.1. Device status information (Run info.)............................................................................38
5.4.2. UPS event history..................................................................................................................38
5.4.3. User Log...................................................................................................................................39
5.4.4. Information about the current firmware versions....................................................39
5.5. System configuration settings.............................................................................................40
5.5.1. Configuration of the operating mode and parameters of the power supply.41
5.5.2. Battery settings.....................................................................................................................41
5.5.3. Battery tests............................................................................................................................42
5.6. DryContact contact configuration.....................................................................................43
5.7. Modbus communication settings......................................................................................43
5.8. Display settings.........................................................................................................................44
5.9. Password settings....................................................................................................................44
5.10. Configuration of the UPS operation mode...................................................................45
5.11. UPS cleaning mode...............................................................................................................45
5.12. Saving the history of events to USB memory..............................................................46
5.13. Current alarms........................................................................................................................46
5.14. System speaker.......................................................................................................................47
5.15. ON/OFF......................................................................................................................................47

1
1. Precautions
This user manual contains necessary information on the installation and use of ModSecur
MT30. Before starting the installation and use, please read the manual carefully. The UPS must
be installed and configured by the manufacturer's or distributor's authorized service center. In
the case of installations by persons without the required experience, there is a risk of exposing
users to loss of health or life. Persons not authorized to install may cause damage to the power
supply, which in this case is not covered by the warranty terms.
STANDARDS FULFILLED
The device meets the CE 73/23 and 93/68 (low voltage safety) directives as well as 89/336
(EMC) and the following standards:
*IEC62040-1-1
*IEC/EN62040-2 EMC CLASS C3
*IEC62040-3
CAUTION - High leakage current
The connection of the protective conductor (PE) is essential and must be made before
connecting the other working conductors (power supply, receiving, battery). Earthing should
be performed in accordance with the prevailing standards and practical knowledge in the
place of installation. The leakage current is greater than 3.5mA and less than 1000mA. When
selecting immediate action RCCB or RCD devices, take into account the transient and steady
state leakage currents that may occur during commissioning of the device. Select residual
current circuit breakers (RCCBs) that are sensitive to DC unidirectional pulses (Class A) and not
sensitive to transient current pulses. It should also be remembered that a given RCCB or RCD
device conducts leakage currents of the receiver.
Service
Dangerous voltage exists in the UPS housing. The risk of contact with such voltage is kept to
a minimum as the live parts are located behind the closed housing. Additional internal
protective covers ensure that the device is protected in accordance with the protection class
IP20. Normal operation of the device, taking into account the recommended operating
procedures, does not pose any threat to the personnel. All maintenance and service procedu-
res require access to the interior of the unit and should only be performed by trained person-
nel.

2
High battery voltage > 400 Vdc
All work related to the maintenance and installation of batteries may be performed by a
properly trained service. When the batteries are connected, the voltage across their terminals
exceeds 400 Vdc and is potentially lethal. Battery manufacturers provide detailed precautions
that must be observed when working on or in the vicinity of large battery batteries. Such
measures must always be strictly adhered to. Particular attention should be paid to the
recommendations regarding local environmental conditions and the provision of protective
clothing, first aid and fire fighting equipment.

3
2. Installation procedure
This chapter is devoted to the method of installation, mounting and wiring of the UPS.
2.1. Introduction
This chapter presents the basic requirements for the location and cabling of the power
supply. The description presents a step-by-step installation manual, which is a series of guide-
lines that should be followed by the service when installing the device.
Warning - Installation may only be performed by an authorized service center
1. Do not connect electrical appliances to the power supply until the service technician has
verified that the power supply is properly connected and configured.
2. The UPS should be installed by qualified technical personnel in accordance with the guide-
lines contained in this chapter.
Do not perform any electrical work interfering with the electrical system upstream and
downstream of the UPS while the UPS system is operating. Damage resulting from this (eg
change of the phase sequence) is not covered by the warranty.
Warning: Dangerous Batteries
Particular precautions must be taken when working with batteries connected to the power
supply. When the battery is connected, the terminal voltage exceeds 400 Vdc and is poten-
tially lethal.
To protect the eyes against an accidental electric arc, it is recommended to wear protective
glasses. Additionally, it is recommended to:
Remove rings, watches and all metal items
Only use tools with insulated handles.
If the battery leaks or is otherwise damaged, it must be replaced. Damaged batteries should
be stored in a sulfuric acid resistant container and disposed of in accordance with local regula-
tions.
If the electrolyte comes into contact with the skin, wash the contaminated area immediately
with water.

4
2.2. Initial inspection
Please perform the following checks prior to installation:
- Visually check that the delivered devices, i.e. the UPS and the batteries, have not been dama-
ged during transport. Any damage found should be reported to the supplier immediately.
- Verify the compliance of the supplied equipment with the installation requirements. The
power of the power supply is each time described on the label.
2.3. Location
2.3.1. UPS room
The UPS is intended for indoor installation. The device should be placed in a clean environ-
ment with adequate ventilation to keep the ambient temperature within the required specifi-
cation range. The UPS provides forced convection cooling through internal fans. Cold air
enters the device through the vents at the front of the housing and is blown out through the
grills at the rear of the housing. Do not block the ventilation openings.
Depending on the room conditions, the ventilation openings of the power supply should be
regularly cleaned, e.g. with a vacuum cleaner. The accessibility of ventilation will ensure
efficient cooling and extend the life of the device.
Note: The UPS should be installed on a stable and non-flammable surface.
2.3.2. Battery room
The battery temperature should be stable as it is the main parameter influencing the battery
life and capacity. The optimal operating temperature of the battery is 15-25 ° C. It is recom-
mended to maintain a nominal temperature of 20 ° C.
Working at higher temperatures shortens the battery life, and working at lower temperatures
reduces their capacity. Each increase of the battery operating temperature by another 8 ° C
reduces the service life by 50%.
Keep batteries away from heat sources and hot air vents.
When installing the battery outside the UPS, use the battery circuit protection located as close
to the battery as possible. Keep the cables connecting the battery and the UPS as short as
possible.

5
2.3.3. Storage
If the device is not installed and needs to be stored, it should be protected against excessive
moisture and high temperature. Batteries should be stored in a dry and cool room. The most
suitable storage temperature for the battery is 20-25 ° C. If the appliance is not installed imme-
diately after delivery, it should be stored indoors so that it is protected from excessive moistu-
re and heat sources.
2.4. Unpacking, checking and setting
Before unpacking, carefully inspect the delivered packaging of the device to make sure that it
has not been damaged during transport. After removing it from the packaging, check that the
equipment has no signs of damage. If there is any damage, report it to the supplier immedia-
tely.
2.4.1. Unpacking
The power supply is delivered in a cardboard box on a wooden pallet. To unpack, remove the
cardboard packaging and protective foams inside the packaging. The following shows the
device after removing the packaging.
View of an exemplary power supply after removing the packaging

6
Tip: Remove the screws connecting the UPS housing with the wooden pallet, and screw in
the feet stabilizing the UPS, and then place the UPS at the installation point, using the exit
provided in the UPS housing. Disassembly should be done carefully so as not to damage the
housing.
Please check the supplied equipment for correctness on the label located on the top cover of
the UPS. The label provides basic information about the model, power, etc.
Note: The protective materials remaining after dismantling (wood, plastic, etc.) must be dispo-
sed of in accordance with the applicable local environmental regulations.
In order to extend the life of the device, it is necessary to provide a suitable place for its
installation, which should guarantee:
- Easy to connect to the electrical installation
- Sufficient space for handling
- Ventilation or air conditioning to ensure adequate cooling of the power supply
- Protection against corrosive gases and vapors
- Protection against excessive moisture and heat sources
- Protection against dust, dirt and other contaminants
- Adequate fire protection
- Working temperature should be in the range of 20-25ºC. At this temperature, the batteries
perform at their optimum.

7
2.4.2. The appearance and dimensions of the UPS
The appearance and dimensions [mm] of the UPS are shown in the figures below:
Front/side view
Bottom view

8
2.4.3. Service space
There are no vents on the side walls of the power supply, so no free space is required on the
side for ventilation. However, for access to the device from each side, it is recommended to
maintain min. 50 cm service space.
It is required to provide adequate space in front of the power supply for easy operation and
the possibility of drawing cold air from the environment. Recommended space from the front
80 cm. Due to the required access to the rear of the power supply as well as free air exhaust
and circulation, the recommended space from the rear of the power supply is at least 30 cm.
2.5. Security elements
For safety reasons, it is required to install appropriate protections in the form of over-current
circuit breakers or other protection devices in the UPS supply switchboard. This chapter provi-
des general practical information for installation by qualified electricians. Additionally, person-
nel with appropriate knowledge and authorizations should have knowledge of the standards
and norms in force on the local market regarding the type and cross-sections of cables, their
arrangement and load capacity. It is recommended to use LgY or OpD hoses.

9
2.5.1. UPS input power
The UPS should be supplied from an electrical switchboard equipped with an appropriate
protection device, matched to the maximum power of the system, and flexible cables with an
appropriate current-carrying capacity matched to the applied protection.
If installation of RCDs on the UPS power supply is required, remember that these devices
should:
- be sensitive to unidirectional DC current pulses (class A)
- not be sensitive to transient current pulses
- have adjustable sensitivity in the range 0.3 - 1A.
The RCD must be sensitive to unidirectional DC current pulses, and insensitive to transient
current pulses, as shown in the figure below:
RCD marking
2.5.2. Battery circuit protection
The battery required for correct operation of the power supply consists of 30 - 40 12 V batte-
ries connected in series. A 3-wire installation is required with a center neutral point taken from
the central connection between battery 20 and 21, in the case of a string 40 of batteries. The
battery circuit must be protected with an appropriate fuse, selected according to the power
of the UPS.
The detailed battery installation drawing is shown below:
. Diagram of connecting 40 batteries in series with the central point

10
MY series UPS are equipped with an advanced discontinuous charging system, characterized
by two charging levels and a rest period. The batteries are charged with a constant current
value and a constant voltage value to obtain the maximum battery capacity. After the
charging process, which usually takes up to 2 days, the so-called“resting mode”period consis-
ting in switching off the charging system. Disconnecting the charger from fully charged
batteries eliminates the process of their continuous recharging, which in long operation may
lead to drying out of the electrolyte and accelerated battery wear. The period of restoration
depends on the speed of self-discharge of the accumulator batteries over time and the condi-
tions in the room where they are used. As standard, in the absence of power outages, the
charging system is activated after 14 days of the rest period, which is the most optimal value
from the point of view of battery life and ensuring the required autonomy.
2.6. Power cables
The main factors that influence cable selection are the supply voltage, amperage, room tempe-
rature and cable installation conditions.
System power cables must be selected in accordance with the regulations in force at the place
of installation and in accordance with the following description:
The UPS input cables must be sized for the maximum input current and maximum battery
charging current specified in the table below, taking into account the power rating of the UPS
and the AC input voltage.
Output and bypass cables must be sized for the rated output current shown in the table, taking
into account the power rating of the power supply and the AC output voltage.
The battery cables must be selected for the battery discharge current at the end of discharge
voltage given in the table, taking into account the rated power of the PSU.
The terminal block for connecting the power / receiving cables in the 30kVA UPS is located on
the back of the UPS. The strip has M6 bolt and eyelet connections. Cable access is provided on
the bottom of the power supply as shown in figure below.

11
View of the back wall of the power supply and the place of connecting the cables
Warning
Before wiring the power supply, ensure the position and operation of the external disconnec-
tors that connect the input / bypass power supply with the power distribution panel. Verify
that the above power sources are electrically disconnected and arrange the necessary
warning signs to prevent their accidental start-up so that the voltage will not appear on the
cable.
2.6.1. Maximum power supply currents
The currents given in the table below are for the maximum system power, depending on the
system power. The given currents are used to select appropriate protections in the supply,
battery and receiving line as well as appropriate cable cross-sections. Currents given for 230 /
400Vac installations.
System MT 30 MT 30
Work configuration 3:3 3:1
Housing dimension
[mm] (W x D x H) 300 x 834 x 1250 mm
Rectifier
supply
Max current
[A]
Bypass
supply
Max current
[A]
Nominal
current [A]
Output
65,7
65,7
45,5
65,7
197,1
136,4

12
Warning
The power supply requires a PE protective conductor. Incorrect connection of the protective
conductor can cause the EMI filters to malfunction and result in electric shock or fire.
2.6.2. Connecting the AC cables
Warning
The operations described in this section should be performed by a properly trained service
team. The ordering party is responsible for the preparation of the power supply and
receiving installation for the power supply.
The UPS UPS can operate in the configuration 3/3 (3 supply phases / 3 output phases) and 3/1
(3 supply phases / 1 output phase). By default, the power supply is configured to work in a 3: 3
system. Changing the operating system to the 3/1 mode requires switching the wires located
under the mask below the connection terminals and reconfiguring the power supply by
bridging the power supply on the bypass terminals and output terminals.
View of the terminal strip for connecting MT 30K wires

13
Wiring view for configuration of 3/3 or 3/1 operating mode
(visible connection is valid for mode 3/3)
View of cabling connection to the power supply operating in 3/3 configuration
(two-line power supply - on the left or single-line power supply - on the right)
In the case of the configuration of the power supply to the 3/1 mode, switch the wiring of the
operating mode according to the connection diagram below, and then bridge the UPS termi-
nal terminals according to Figure 2.11.
View of the necessary wiring changes from the 3/3 system to work in the 3/1 system

14
View of the terminal strip prepared for connection of 3/1 wires
After the power supply is properly positioned and secured against movement, connect the
wires according to the following rules:
1. Check that the UPS is completely disconnected from the external power source and that the
service bypass switch on the UPS is open. Make sure these power sources are electrically
isolated and post the necessary warning signs to prevent accidental activation.
2. Configure the operating system of the power supply 3/3 (default) or 3/1 as shown in the
figures above.
3. Remove the cover to gain access to the place where the power cables are inserted.
4. Connect the protective earth conductor. The connection must comply with local regulations
and applicable standards.
5. Connect the UPS (rectifier and bypass) power supply and the receiving cables.
Warning - Dangerous voltage at the battery terminals
6. Install the protective cover and the power supply bezel
2.6.3. Battery connection
UPS enables connection of internal batteries in the maximum amount of 2 x 40 AGM VRLA 9Ah
/ 12V batteries. Each of the internal battery chains is protected by a battery breaker located on
the rear of the UPS and labeled Battery1 and Battery2.
If the UPS is equipped with external batteries, they must be protected with an additional
battery disconnector equipped with appropriate fuse links. The external batteries are connec-
ted via the delivered original cables equipped with terminals for connection to the UPS inputs
described as External battery cabinet 1 and External battery cabinet 2. Both external battery
inputs must be connected with external batteries according to the diagram below, depending
on the number of strings external:

15
+
-
……
NO.1
Ba tt er y
ca bi ne t
NO.2 NO.16
NO.3
NO.17 NO.18 NO.32
NO.19
+
-
+
- -
+
-
……
+
-
+
- -
UPS
BATT. -
BATT. +
+
+
BATT. N
BATT. -
BATT. +
BATT. N
EX TE RN AL B AT TE RY
C
2
EX TE RN AL B AT TE RY
C
1
+
-N
DC
Breaker 1
DC
Breaker 2
+
-N
Diagram of connection of external batteries for a single chain
+
-
……
NO.1
Ba tt er y ca bi ne t
1
NO.2 NO.16
NO.3
NO.17 NO.18 NO.32
NO.19
+
-
+
- -
+
-
……
+
-
+
- -
+
-
……
NO.1
Ba tt er y ca bi ne t
2
NO.2 NO.16
NO.3
NO.17 NO.18 NO.32
NO.19
+
-
+
-
+
-
+
-
……
+
-
+
-
+
-
UPS
BATT. -
BATT. +
+
+
BATT. N
BATT. -
BATT. +
BATT. N
DC
Breaker 1
DC
Breaker 2
EX TE RN AL B AT TE RY
C
2
EX TE RN AL B AT TE RY
C
1
+
-N
+
-N
Diagram of connection of external batteries with two battery chains
.View of the original terminals for connecting external batteries

16
2.7. Communication
The communication interface of the MT 30K power supply is located on the back of the power
supply, and consists of DryContact potential-free connectors (1 and 3), a parallel operation
connector (2 - optional), two communication card slots (6 and 7 - optional) and a communica-
tion connector Modbus RTU / RS485 (5). There is also a USB port behind the front LCD panel.
2.7.1. Dry Contact IN / OUT communication
The UPS is equipped with DryContact communication as standard.
The UPS has five output contacts (Dry contact 1) and two input contacts (Dry contact 2).
Communication interface
DryContact In / OUT interface