mercor mcr OMEGA pro User manual

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TECHNICAL MANUAL
Power and Control Panel
mcr OMEGA pro
mcr OMEGA pro & mcr OMEGA proF Power Supply Unit
mcr OMEGA pro revision 06.03.20.3
FIRE VENTILATION SYSTEMS _

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CONTENTS
1. INTRODUCTION ............................................................................................................................3
2. INTENDED USE..............................................................................................................................3
3. DESIGN AND OPERATING PRINCIPLE.........................................................................................5
3.1. ENCLOSURE..............................................................................................................................5
3.1.1. INTERNAL TEMPERATURE CONTROL.............................................................................6
3.2. MAINS POWER SUPPLY............................................................................................................7
3.3. AUTOMATIC TRANSFER SWITCHING MODULE (ATS).............................................................7
3.4. ELECTRICAL PROTECTIONS OF CONNECTED DEVICES.......................................................8
3.5. DC/AC INVERTER ......................................................................................................................8
3.6. MCR MMS/EVCO MONITORING AND CONTROL MODULES .....................................................9
3.6.1. BASIC MONITORING AND CONTROL MODULES.............................................................9
3.6.2. OPTIONAL MONITORING AND CONTROL MODULES MCR MMS 63..............................11
3.6.3. OPTIONAL MONITORING AND CONTROL MODULES EVCO C-PRO..............................12
3.7. MCR OMEGA PRO FIRE PROTECTION DEVICES POWER SUPPLY UNIT................................13
3.7.1. 24 VDC BATTERY UPS ....................................................................................................13
3.7.2. FAN STARTING CONTACTOR SYSTEMS .......................................................................14
3.7.3. SOFTSTARTERS..............................................................................................................15
3.7.4. INVERTERS (FREQUENCY CONVERTERS)...................................................................15
3.8. KLI LINE CONTINUITY MONITORING MODULE......................................................................16
3.9. MCR 0204 FIRE DETECTION MODULE.....................................................................................16
3.10.GAS EXTINGUISHING MODULE (FFES)..................................................................................16
4. TECHNICAL SPECIFICATIONS ...................................................................................................17
5. INSTALLATION AND CONNECTIONS ___________________________________....................18
5.1. ACTUATOR CONNECTIONS....................................................................................................18
5.1.1. FIRE PROTECTION DEVICE CONECTION CABLES.......................................................23
6. OPERATION ________________________________________________________________...24
7. TESTING ____________________________________________________________________25
8. TRANSPORT AND STORAGE ____________________________________________..............25
9. SERVICING AND MAINTENANCE ...............................................................................................26
10. WARRANTY TEMRS & CONDITIONS _________________________________........................26
NOTICE
All previous issues of this Technical Manual expire on the date of issue hereof. This Technical Manual
does not apply to the panels manufactured prior to this Technical Manual's date of issue.

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1. INTRODUCTION ___________________________________________________________
This Technical Manual is addressed to the operators of the mcr OMEGA pro modular Power and
Control Panelsfor operation of fire ventilationsystems and themcr OMEGA pro / mcr OMEGA proFPower
Supply Units for fire alarm systems and smoke and heat control systems. This document is intended to
provide guidelines on the application, design, commissioning and operation of these products. The
Technical Manual also provides the transport and warranty conditions for the products.
Read this Technical Manual thoroughly before installing and commissioning this
equipment. Failure to follow this Technical Manual may result in hazards to health
and/or property. The manufacturer shall not be liable for any consequences of non-
intended use or misuse of this equipment.
The mcr OMEGA pro Power and Control Panel complies with the requirements of the CNBOP-PIB National
Technical Assessment no. CNBOP-PIB-KOT-2017/0011-1009 revision 3 and the essential requirements
of the European Union Directives and Regulations:
305/2011 (CPR) on marketing of construction products;
2014/35/UE (LVD) Low Voltage Directive;
2014/30/UE (EMC) Electromagnetic Compatibility Directive;
2011/65/UE (ROHS) on the restriction of the use of certain hazardous substances in electrical and
electronic equipment;
Regulation of the Minister of the Interior and Administration of 27 April 2010 amending the Regulation
on the specification of products used to assure public safety or the protection of health and life and
property, as well as rules for issuance of certificates of admittance for the use of those products
Compliance with these documents has been confirmed with applicable certificates granted by Polish
institute CNBOP-PIB for the mcr OMEGA pro Power and Control Panels and the following certificates
granted for the mcr OMEGA pro and mcr OMEGA proF Power Supply Units intended for fire alarm systems
and smoke and heat control systems:
Certificate of Admittance No. 2980/2017 –section 12.1, 12.2 (control and power supply);
Certificate of Constancy of Performance No. 1438-CPR-0569;
National Certificate of Constancy of Performance No. 063-UWB-0048;
Certificate of Admittance No. 2904/2017 - section 12.2 (power supply);
Certificate of Constancy of Performance No. 1438-CPR-0523.
2. INTENDED USE ____________________________________________________________
The mcr OMEGA pro Power and Control Panel for control of fire protection equipment operated in heat
and smoke control systems is intended to provide control, power supply and monitoring of the operation
of equipment installed in heat and smoke control systems, including the following::
jet fans;
smoke exhaust fans;
pressurization fans;
comfort air exhaust fans;
comfort air supply fans;
duct fans;
air transfer fans;
air pulse fans;
induction fans;
differentia pressure devices;
fire dampers;
smoke venting windows and dampers;
fire doors and gates;
smoke curtains;
comfort and fire ventilation dampers;
louvers;
warning and information display panels;
sensors, detectors, transducers, reed relays,
switches, call points etc..

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Fig. 1. Diagram of mcr OMEGA pro interface connectivity
The mcr OMEGA pro Power and Control Panel features an integrated fire equipment power supply unit
type mcr OMEGA pro or mcr OMEGA prof (with load transfer switching). The power section of the mcr
OMEGA pro Power and Control Panel meets the standard EN 12101-10:2005+AC:2007 "Smoke and heat
control systems –Part 10: Power supplies" and EN 54-4:1997+AC:1999+A1:2002+A2:2006 "Fire
detection and fire alarm systems –Part 4: Power supply equipment". The mcr OMEGA pro Power and
Control Panel can be installed in multiple non-distributed enclosures that should be bolted together. The
Power Supply Unit and the mcr OMEGA pro Power and Control Panel must be installed in the same
enclosure.
Power and Control Panel capabilities:
Manual alarm tripping with manual smoke venting controls;
Automatic fire detection with smoke detectors;
Fire Alarm System output handling;
Fire Alarm relay;
System fault data relay;
Alarm resetting and smoke damper closing;
Operating status monitoring for interfaced devices;
Manual smoke damper opening for building ventilation;
Automatic smoke damper closing if open and venting air (if connected to a weather control station
with a rain and wind sensor);
Interface connectivity with visualization HMI systems and building management systems (BMS) over
Modbus RTU (RS485): see the data communication parameters in the respective instruction manual.
These capabilities of the mcr OMEGA pro Power and Control Panel can be enabled depending on the
building design and fire scenario requirements; hence all functionalities can be enabled or any combination
thereof.

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3. DESIGN AND OPERATING PRINCIPLE __________________________________
The mcr OMEGA pro Power and Control Panel is intended for control of fire protection equipment
operated in heat and smoke control systems and comprises the following components:
1) An IP54 or IP55 metal enclosure with an operating status LED indicator panel and a mounting plate.
2) A mains power supply unit and surge protection units (optional).
3) Dedicated microchip-based MMS monitoring and control modules.
4) The mcr OMEGA pro Power Supply Unit, which may contain the following, depending on the actual
version:
a. A 24 VDC power adapter for microchip systems and fire protection devices;
b. Contactors or contactor arrays for starting and powering of system fans as follows: direct on line
(DOL), star-delta, Dahlander connections, and fan reversing in all of mentioned;
c. Softstarters: provide power and soft starting of high-power fans;
d. Inverters: forsystems with variableor multi-speedmotor control. The inverter controlis based either
on 0–10 V, 4–20 mA, or dry contact switching;
e. An Automatic Transfer Switching Modulehin, which can switch the powered loads to an emergency
power generator or a secondary power mains line (optional);
f. Eletrical protections for connected devices;
g. 24 VDC/230 VAC power inverter (optional);
5) Supply line continuity monitoring modules (optional).
6) Fire detection module (optional).
7) Gas extinguishing module (optional).
The operating principle of the actual product will depend on therequirements of the building and the system
the Power and Control Panel is to be installed in and operated with. The Power and Control Panel
operating logic algorithm is customized per the specification data and fire scenario requirements provided
by the installation designer. The panelis delivered to thecustomer complete with the installationdiagrams,
operating logic algorithm specification and specification of components.
Optional functions available with the Power and Control Panel:
Actuators immobilized control;
Alarm status outputs;
Internal operation delay;
Multiple alarm signals processing;
Outputs to other systems not related to heat and smoke control;
Alarm status output;
Fault status output;
Test status;
Test status output.
3.1. ENCLOSURE
The mcr OMEGA pro Power and Control Panel is housed in free-standing or wall-mounted metal
enclosures sized to easily accommodate the specified internal components. Depending on the product
version, the enclosure protection rating is IP54 or IP55. The Power and Control Panel form factor will
depend on the complexity of operations and the switching algorithm. An enclosure can be formed by a
single-chamber box or a number of permanently bound, non-distributed modules. The mcr OMEGA pro
Power and Control Panel is rated for Environment Class III and an operating temperature range from -
25°C to +75°C. The enclosure performance and high corrosion resistance permit outdoor installation at
locations directly exposed to weather. For outdoor installations, the enclosure is fitted with a rain canopy
to prevent direct rainfall onto the device. The device may also feature ambient operating temperature
controls, including a thermostat-controlled radiator heater to prevent low enclosure and internal
temperatures, freezing of rain or melt water, and condensation and freezing of air humidity. An integrated
air fan provides forced internal ventilation of the enclosure to control the ambient operating conditions at
high external temperatures and keep the enclosure and internal components cooler.

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The Power and Control Panel front features an operating status LED indicator panel. The LEDs indicate
the actual operating status of the Power and Control Panel with three different colours:
Green –POWER –mains online indication,
Yellow –FAULT –panel or connected device fault status,
Red –ALARM –fire alarm status.
The operating status LED indicator panel features the ALARM RESET button
which resets the operating logic algorithm and the Power and Control Panel
from its alarm state. Once an alarm is reset, all interfaced devices return to the
monitoring status. If the alarm has been successfully reset, the ALARM LED
should go off.
Each alarm can only be successfully reset if all Fire Alarm
System signals are off; otherwise, the fire mode algorithm will
continue running.
Access through the Power and Control Panel door is secured with a key lock. The Power and Control
Panel enclosure features power and control wiring lead-ins and lead-outs via cable glands. The number
and layout of the cable glands depend on the installation system sizing and the design of the interfaced
power switchboard location. Hence, the cable glands can be installed on the top, the bottom or the sides
of the Power and Control Panel. The mcr OMEGA pro Power and Control Panel enclosure may feature
optional single or toggle switches for manual control of the interfaced devices, and an emergency stop
device switch. Optional LED indicators can be installed on custom order to read the status of interfaced
devices, e.g. the emergency power generator, live phases, air fan operation, or fire / smoke damper
open/closed status.
3.1.1. INTERNAL TEMPERATURE CONTROL
The ambient operating temperature rating of the mcr OMEGA pro Power and Control Panel is -25°C
to +75°C per Environment Class III. The internal temperature of the Power and Control Panel is controlled
with heating and cooling thermostats (labelled red and blue, respectively), which control the heater and
the air fan. The internal temperature control devices are installed depending on the installation site and
the size of the Power and Control Panel (outdoor or indoor). The heating thermostat is factory set to 10°C;
if the internal temperature detected falls below this setting, the Power and Control Panel heating will be
turned on. The cooling thermostat is factory set to 35°C; if the internal temperature detected exceeds this
setting, the air fan will run. The thermostat settings are adjustable with graduated pot-meters on the
thermostat device enclosures.
Fig. 2.Operating status LED
indicator panel.
Fig. 3.Cooling thermostat (blue), heating thermostat (red). Air fan and radatior heater.

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3.2. MAINS POWER SUPPLY
The Power and Control Power can work either on 230 VAC / 1L+N+PE mains or 3x400 VAC/3L+PE or
3L+N+PE mains. The mains can be supplied over wiring without a PE conductor; this requires a local PE
connection of the Power and Control Panel. The mains input terminals are inside the Power and Control
Panel and coupled directly to the main power switch which is used to isolate the Power and Control Panel
from live voltage for e.g. servicing.
The mcr OMEGA pro Power and Control Panel requires uninterruptible (secure or
redundant) power supply which shall be provided from a separate fire power supply
section of the building's main switchboard to guarantee continued operation, even in the
event of a fire.
Optionally, the Power and Control Panel supply input
can be secured with type B+C or C surge protection that
will prevent catastrophic failure of this device in
overvoltage conditions, e.g. a lightning stroke to the
building installation.
3.3. AUTOMATIC TRANSFER SWITCHING MODULE (ATS)
If the installation system design or the existing conditions of the building features no load transfer
switching at the main switchboard, whereas no uninterruptible power supply can be connected to the
Power and Control Panel, the mcr OMEGA proF can be optionally equipped with the Load Transfer
Switching Module. The Load Transfer Switching Module enables power for the Power and Control Panel
from either of two separate mains supply lines. The Load Transfer Switching Module automatic control
switches over the power loads from the primary mains supply to the backup power supply if the former
suffers from an excessive voltage dip or failure. The backup power supply power rating must be equal to
the primary mains supply power rating to ensure operating continuity of the Power and Control Panel. The
load transfer switching delay is only several seconds long. During this delay, the control actuators will not
cease to function; the panel control system is maintained by a UPS battery. The backup power supply can
be replaced with an emergency power generator. In this configuration, the Power and Control Panel will
start the emergency power generator via a dry contact signal upon a primary mains supply failure. When
the Power and Control Panel acknowledges that the emergency power generator outputs the correct
voltage, the loads will be switched over to the latter. The time to correct output voltage of the emergency
power generator cannot exceed 15 seconds. The Power and Control Panel may optionally feature a LED
indicator for the emergency power generator status monitoring.
The following operating statuses of
the emergency power generator can
be indicated (if supported by the
emergency power generator):
Low battery,
Startup failed,
Engine overheated,
Low oil pressure,
Engine overspeed,
Generator overload,
Low fuel.
Fig. 4. Main power switch diagram.
Fig. 6.Diagram of ATS in mcr OMEGA proF Power Supply.
Fig. 5. Surge protection diagram.
Primary mains line
Secondary mains line

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3.4. ELECTRICAL PROTECTIONS OF CONNECTED DEVICES
All devices interfaced with the mcr OMEGA pro Power and Control Panel and fed by the mcr OMEGA
pro/proF Power Supply Unit are protected against shorting and/or overload. The specific protection types
installed depend on the duty and specifications of the interfaced devices. The most common protections
include circuit breakers, overcurrent breakers, and motor breakers. All protectionsfeature operating status
monitoring with outputs of protection status indications to the MMS modules. If a protection unit is tripped,
the FAULT LED indicator will light up on the Power and Control Panel, and the protection will be off. The
operating status of the circuit breakers is indicated with a phase monitoring relay installed downstream of
each circuit breaker.
See the detailed information about the installed protection types, characteristics and
breaker ratings in the electrical wiring diagram provided with the Power and Control
Panel.
3.5. DC/AC INVERTER
The mcr OMEGA pro Power and Control Panel can be optionally equipped with a 24 VDC/230 VAC
DC/AC power inverter. The DC/AC power converter suppliespower to 230 VAC rated equipment, including
BE230V actuator dampers or smallpower fans upto 1.5 kW, even if the primarymains supplyof the Power
and Control Panel fails. The DC/AC power converter generates a pure sine wave 230 V power output by
conversion of battery output voltage. The mains supply is isolated when the DC/AC power converter is
online. The available DC/AC power converter output ratings range from 200 W to 3,000 W. The DC/AC
power converter is most recommended whenever uninterruptible power supply or an emergency power
generator is not a feasible solution. The DC/AC power converter features a safety power input cut-out that
is broken when the battery output voltage is low (at ca. 21 V) to protect the batteries against a deep
discharge that would reduce their service life. The DC/AC power converter is isolated from the batteries
with the main power switch of the Power and Control Panel. When coupled with a 1×230 VAC inverter, the
DC/AC power inverter can provide power to 3×230 VAC motors. The 230 V battery backup time will depend
on the power load ratings and the battery capacity available. Example: a drive unit rated at 1.5 kW with a
200 Ah battery bank gives a battery backup time of ca. 40 minutes.
Fig. 7. Diagram of power system with DC/AC inverter.
The batteries used in Omega pro Power and Control Panel are a consumable element.
Their properties decrease over time. This decrease is not covered by the warranty.
Mains switch
Mains supply
Baterry UPS
Baterry bank
DC/AC Inverter
230 VAC
power
24 VDC
power

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3.6. mcr MMS/EVCO MONITORING AND CONTROL MODULES
The power and control functions of the mcr OMEGA pro are handled with the mcr MMS
microprocessor-based monitoring and control modules. The mcr MMS modules have been designed
specifically for controlling the Power and Control Panel and they are freely programmable according to the
requested fire scenario. The mcr MMS modules receive and execute the commands from a Fire Alarm
System or another master controller to actuate the requested interfaced devices tasked with proper
operation of the heat and smoke control systems. With extensive functionalities, the mcr MMS modules
can handle even the most complex control algorithms with internal logics, timers and counters. The mcr
MMS modules enable programming of internal delay times for control operations, and filter input signals
as required by the building characteristics covered by the Power and Control Panel system. The number
of the mcr MMS modules depends on the installation system specifications. The mcr OMEGA pro have 3
types of monitoring and control modules that can be used to develop the control system.
3.6.1. BASIC MONITORING AND CONTROL MODULES
Each mcr MMS module has 12 digital inputs and 6 relay outputs. Each mcr MMS module can feature
one of the available extension cards that is installed in the CARD SLOT, and feeding control signals to
terminals 12, 13 and 14.
The available extension card types include:
3× digital inputs
1× relay output
0–10 VDC analogue input
0–10 VDC analogue output
RS-485 (Modbus RTU)
The mcr MMS modules require 24 VDC power
connected to the 24 V + and - terminals. If the PWR
LED is on, the mcr MMS module receives proper
supply voltage.
Each mcr MMS module is addressable with the
ADR switch (for service personnel only).
The digital inputs (IN) are isolated and can monitor the signal continuity with a 10 kΩ end of line (EOL)
resistor andtimeout control of the input signal changes (e.g. for damper position limit switches). Eachinput
status is read on its mcr MMS module with two LED indicators. Table 1 shows the possible input statuses
recognized. All module inputs are referenced to 18.7 VDC common on the CM terminal.
Connect the inputs to dry contacts coupled with EOL resistors only.
Table 1. Input status indication on the mcr MMS module.
Red
LED
Green
LED
Break,
Contact made
timeout
Break
Make,
contact break
timeout
Make or break and
contact break/make
timeout
Break,
Contact break
timeaout (monitoring
input) or active
algorithm (alg. input)
Make
Make, contact break
timeout (monitoring
input) or active
algorithm (alg. Input)
Continuity lost
Fig. 8. Overview of the mcr MMS module..

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A flashing LED indicator signals a timeout has occured for monitoring inputs (e.g. limit switch signals). For
algorithm inputs (e.g. FAS signals, venting) the flashing LED signals the active algorithm.
The mrc MMS module controller identifies the specific input statuses with resistance measurement values.
The table below explains the difference between the make, break and continuity lost statuses.
Table 2. Input status according to the input resistance value.
Input status
Make
Break
Continuity lost
Input resistance
0 Ω
10 kΩ
max. (∞)Ω
Diagram
MMS
Signal contact closed
Signal contact open
MMS input line
continuity lost
If an invalid input status exists, its respective LED will be flashing. The fault status will be memorized until
the ALARMRESET button is pressed on the Power and Control Panelfront door. The memory functionality
maintains the control actuator fault data as required until the alarm is reset.
Relay outputs (OUT) feature status readings on orange LED indicators. If a LED indicator is on, the
respective output is active. The output logic can be customized by rewiring the output terminals; each
SPDT relay output has three contact terminals.
Terminal 2 is the common (COM).
Terminal 1 is a normally closed (NC) contact, which is made with terminal 2 when the output is not active.
Terminal 3 is a normally open (NO) contact, which is made with terminal 2 when the output is active.
Output status
Not active
Active
LED
Schematic diagram,
relay inside
MMS module
An exemption to this operating principle is the FAULT output (indicates a Power and Control Panel failure)
which operates with a reverse logic and its LED is off when active. When testing the input signals with the
TEST button of the Power and Control Panel, the FAULT output indication will be flashing.

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3.6.2. OPTIONAL MONITORING AND CONTROL MODULES
mcr MMS 63
The mcr MMS 63 module has 6 digital inputs and 3 relay outputs. Each of them can feature one of the
available extension modules by linking them together via dedicated communication tapes connected to
the slots MASTER / SLAVE
The available extension card types include:
mcr MZK2001 enabling communication with external systems (BMS,
frequency converters, controllers (e.g. mcr ICR)) via RS485 Modbus
RTU or control of the output transistor of any polarity 1×relay output
mcr MMS 2082 equipped with 8 digital inputs and 2 relay outputs
The mcr MMS 63 modules are powered by 24 VDC connected to the 24
V + and - terminals. Correct power supply of the module is indicated by
the PWR LED on.
The module works according to the specified program. Individual
elements (modules) of the system have the ability to communicate with
other modules connected in one set. Communication is carried out
through the serial port of microprocessors that control the operation of
individual modules. Data exchange is initiated by a module with MASTER
authorization. SLAVE modules respond to its inquiry. SLAVE modules have unique addresses set with
a microswitch. The data exchange protocol between MASTER and SLAVEs is similar to the MODBUS
protocol. The modules are interconnected with the HBUS rail at the bottom of the housing.
Digital inputs (IN) are optically isolated and enable signaling of the following states: interruption, short
circuit, line control. The module input signals are powered from a special output of the same module
(COM). The status of each input is signaled on the mcr MMS 63 module by LED:
- RED - solid line, closed contact
- GREEN - input contact open (circuit closed with a 10kΩ resistor)
- NO LIGHT –line interrupted
The line control terminator is a 10kΩ resistor. In order to eliminate interference caused by contact vibration,
the input signals are subject to digital filtration.
Relay outputs (OUT) have a status signaling via yellow LEDs. Active output is presented by lighting LED.
The output operation logic can be customized by wiring the output terminals because each output has
three changeover contact terminals. The load capacity of a single output is a maximum 6A at a maximum
voltage of 250V AC. The output signals are also separated from the microprocessor potential.

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3.6.3. OPTIONAL MONITORING AND CONTROL MODULES
EVCO C-pro
In mcr OMEGA pro units it is possible to install EVCO C-pro 3 PLC devices in two versions: kilo +
and node kilo +. According to the driver version, they have:
9 or 13 digital inputs
9 or 10 analog inputs
9 or 11 digital outputs
6 analog outputs
RS485, CAN, Ethernet/BACnet
communication ports
Depending on the version, EVCO
controllers may have a display with
signaling of the I / O status. The mcr
MMS modules are powered by 24 VAC
/ DC connected to the V ~ + and V ~ - terminals.
Digital inputs (IN) are optically isolated and allow reading 24 VDC / 24VAC signals at 50 / 60Hz.
Additionally 2 digital inputs also support fast signals with 24 VDC / 24VAC parameters up to 2kHz.
Analog inputs (IN) can be configured to read signals from temperature sensors (PTC / NTC / Pt 1000),
0-20mA and 4-20mA current signals and 0-5 VDC and 0-10 VDC voltage signals.
Digital (relay) outputs (OUT) can be customized by wiring the output terminals because each output has
three changeover contact terminals. The load capacity of a single output is a maximum 3A at a maximum
voltage of 250V AC. In the event of control from these solid state relay outputs, the load capacity of a single
output drops to 0.6A at 24VAC / DC.
Analog outputs (OUT) can be configured as 0-10V voltage output, PWM output and 0-20mA/4-20mA
current output.

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3.7. mcr OMEGA pro FIRE PROTECTION DEVICES POWER SUPPLY UNIT
The mcr OMEGA pro Power and Control Panel for operation of the fire protection devices in heat and
smoke control systems features a power supply unit that complies with: EN 12101-10:2005+AC:2007 and
EN 54-4:1997+AC:1999+A1:2002+A2:2006. The power supply unit provides power to the fire protection
devices that must work without interruption in the event of a fire.
The Power Supply Unit is configurable and permits customizing its output lines to the design requirements
for control type and supply voltage of the building installation.
3.7.1. 24 VDC BATTERY UPS
The mcr OMEGA pro Power Supply Unit features 24 VDC battery UPS units rated at 150 W,
300 W or 600 W, and a capacity of 6 A, 12 A or 24 A, respectively. Each battery UPS and its battery bank
provides backup power for the Power and Control Panel control systems and control actuation systems
for at least the preset backup power operating time. If the mains supply voltage is lost, the 24 VDC systems
can be fed from the battery banks connected to the Power Supply Unit. The Power Supply Unit feature a
four-level battery charging current control. The battery charging current setting is as shown in the Power
Supply Unit manual and adapted to the battery capacity. This provides for optimized battery operating
parameters and maximum battery service life. Each standard Power Supply Unit comes with light and
relay indicators, and a deep drain disconnector which protects the batteries on-line against excessive
drainage. The faults of the batteries and the battery UPS are indicated by the LEDs of the UPS unit and
the FAULT LED on the Power and Control Panel front door. The Power Supply Unit features separate LED
indicators on the enclosure, and a battery line fuse. The fuse rating is marked on the Power Supply Unit
enclosure.
LED
Status
MAINS
UPS mains power ON
OCP
Limited currect operation
FLT
Battery power online / low battery / battery missing / battery line continuity lost /
battery fuse blown / temperature probe missing or failed
CHRG
OFF: not charging / ON: charging / flashing: floating
BAT
OFF: no faults / ON: battery line continuity lost or battery missing / flashing: battery
power online
Fig. 10. UPS and battery wiring diagram.
Fig. 9. UPS overview.
Battery
Battery

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3.7.2. FAN STARTING CONTACTOR SYSTEMS
W centralach mcr OMEGA pro do rozruchu wentylatorów i silników stosowane są klasyczne metody
stycznikowe:
DOL (Direct On Line): The interfaced motor (e.g. of a fan) is connected directly to the mains by
switching the contactor coil, switching over the contactor contacts, and feeding the rated voltage to the
motor input terminals. This solution is commonplace for motors up to 5.5 kW. The starting current may
grow up to 8× In (the motor current rating).
Star/delta (Y/Δ) connection: High-power motors are usually started with a Y/Δconnection system that
can largely reduce the starting current value (down to 3× In), resulting with lower conductor sizes.
During the starting initial phase, the motor winding is connected in a star configuration; an automatic
switching control changes the connection to deltawhen the rotor reaches its nominal rpm. This reduces
the current draw. This solution is commonplace for motors above 5.5 kW.
Dahlander connection (two-speed): This contactor arrangement permits automatic control over the
motor rpm speed by changing the pole pair number (Y/YY).
Independent winding (two-speed): This contactor arrangements provides rpm speed control for the
motors with double independent windings e.g. double star.
Reversing connections: this contactor arrangement enables reversing the rotation direction of a fan by
swapping the order of phases in all of above starting connection solutions, including the two-speed
varieties.
The contactor starting systems feature acknowledgement of electric drive power connection and contactor
switchover to confirm that the interfaced fans run properly. It is also possible to monitor the fan power
supply line continuity. The table below show the connections between the Power and Control Panel and
the motors.
Starting
Direct On Line
Star/Delta
Dahlander
Independent windings
Motor
wiring
diagram
Live
conductors
4x (*)mm2
7x (*)mm2
7x (*)mm2
Motor
Winding
terminals
The motor winding
terminals are
connected (Y/Δ)
according to the
supply voltage
rating and the
motor name plate.
Separate lead-out to each
motor winding terminal.
Separate lead-out to each motor
winding terminal.
(*) The conductor size should be selected according to the motor rated power. The suggested number of lines per motor is proviced for drives
without service switch monitoring.
Fan
Fan
Fan

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3.7.3. SOFTSTARTERS
Softstarters enable surge-free and smooth starting and stopping of high-power fan motors. The mcr
OMEGA pro Power and Control Panel features HFR-1000 series soft starters which permit voltage ramp
starting, current ramp starting, and surge starting. They also provide an all-round protection of the motors
during starting and stopping. The available soft starter power range is from 15 kW to 315 kW. Soft starters
are operated with an external bypass contactor. The starting current via a soft starter is limited to a
maximum of 4× In. If a soft starter has a fault, it is indicated on its front panel display and by the FAULT
LED on the Power and Control Panel front door. See the OEM manuals of the soft starter for detailed
information about the displayed messages.
(*) The conductor shall be sized per the motor power rating; the number of live conductors is provided for electric drivers without service breaker
monitoring.
3.7.4. INVERTERS (FREQUENCY CONVERTERS)
Frequency converters, or inverters, help control the operation of electric motors whenever speed or
torque must be controlled. The inverters used in the mcr OMEGA pro Power and Control Panels control
the air fan output. Depending on the application, the air fans can be controlled in steps with dry contact
outputs of external systems, as used for ventilating garage rooms, or variable-controlled by 0–10 V or
4–20 mA analogue control outputs of various transducers (used e.g. for pressure or temperature
monitoring). An inverter in a fan starting system greatly reduces the starting current (to ca. 2× In) and the
installation costs. In an installation with high-power fans, wiring based on 4-wire cables instead of 7-wire
cables will greatly reduce the smoke venting system costs. The Fire Mode input enables powering fire
protection fans with the inverter. When in the Fire Mode, the inverter stops responding to all external inputs,
faults or overload signals, which helps effectively vent smoke without bypassing the inverter with a
contactor. Scalar or vector control inverters are available. The mcr OMEGA pro Power and Control Panels
may optionally feature a PTC or TK input for thermal protection of the controlled drive units. The compatible
power rating range for the frequency converters is extremely wide: from 0.25 kW to 630 kW at 3×400 VAC
and from 0.25 kW to 2.2 kW at 1×230 VAC (for 3×230 VAC motors).
(*) The conductor shall be sized per the motor power rating; the number of live conductors is provided for electric drivers without service breaker
monitoring.
Starting
Motor wiring diagram
Live conductors
Motor Winding terminals
Softstarter
4x (*)mm2
The motor winding
terminals are connected
according to the supply
voltage rating and the
motor name plate.
Starting
Motor wiring diagram
Live conductors
Motor winding terminals
Inverter
4x (*)mm2
Shielded power cables are
recommended for motors
powered via inverters.
The motor winding
terminals are connected
according to the supply
voltage rating and the
motor name plate.
Fan
Fan

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3.8. KLI LINE CONTINUITY MONITORING MODULE
The mcr OMEGA pro can be enabled to monitor power supply line continuity
of the interfaced devices to detect breaks or shorting. Damper actuators are
monitored based on the feedback from their position limit switches, while the fan
motors are controlled with a KLI module installed in the Power and Control Panel.
Line continuity monitoring is applied if required by the building design. Upon
detecting a line discontinuity, the KLI module outputs this status to the MMS
modules. The FAULT LED will light up on the Power and Control Panel front door.
The KLI module features two LED indicators, POWER and OK. If the KLI module
is connected to live voltage and the monitored lines are continuous, both LEDs
are on. If a fault state is detected, the MMS module reads the monitoring mode
input LED status to identify the specific device at fault. The KLI module can also
monitor the status of the service breaker; if this is enabled, there is no need to
install a separate service breaker position feedback contact. If the service breaker
is open, this will be indicated by the Power and Control Panel.Hence, no additional
wiring is required to monitor the service breaker status.
3.9. mcr 0204 FIRE DETECTION MODULE
The mcr OMEGA pro Power and Control Panel can be
equipped with the mcr 0204 Fire Detection Module. This
device has a single detection circuit to which up to 10
conventional detectors and manual smoke vent buttons can
be connected. The Fire Detection Module is an optimum
choice for fire detection in small areas (e.g. garage rooms,
staircases, etc.) without a need for an extensive fire alarm
system, or for detecting fire in a gas extinguishing system
control panel. The number of the modules depends on the
specific system configuration. The manual smoke venting
controls can be connected separately to the OMEGA pro
Power and Control Panel via the MMS modules.
3.10. GAS EXTINGUISHING MODULE (FFES)
The mcr OMEGA pro Power and Control Panel can remotely trigger an
inert gas (e.g. FE-36) extinguishing system installed in its enclosure. This
can help prevent destruction of the Power and Control Panel if exposed
directly to smoke, flame or an internal failure. When the Power and Control
Panel is coupled with a Fire Detection Module, the smoke inside its
enclosure is detected early enough to trigger a fixed fire-extinguishing
system installed inside, e.g. charged with the FE-36 gas, and a part of the
gas extinguishing system. The mcr OMEGA pro Power and Control Panel
can feature local or fixed HFC extinguishing systems that meet the relevant
Technical Approvals or National Technical Assessment and protect the
Power and Control Panel in the event of a fire.
Fig. 13. FFES inside the panel.
Fig. 12. mcr 0204 module overview.
Fig. 11. KLI module diagram.
Fan

mcr OMEGA pro Power and Control Panel
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4. TECHNICAL SPECIFICATIONS __________________________________________
TECHNICAL PARAMETERS
1
Enclosure protection rating
IP 54 lub IP 55
2
Working temperature range
-25ºC ÷ 75ºC
3
Environment Class
III
6
Primary power: supply voltage
230/400/690 VAC (-15%, +10%)
7
Max. mains current draw
4000 A
8
Internal operating voltage
24 VDC, 230/400/690 VAC
9
Emergency power: battery type
Lead-acid, AGM
10
Max. battery capacity
300 Ah
11
Battery charging voltage
13,7 V
12
Monitoring lines: type
Open loop
13
No. of monitoring lines
10
14
Max. no. of devices per monitoring line
10
15
Monitored signalling lines:
20
16
Signalling line components
Sound / sound and light alarms; warning display panels
17
Outputs: for manual smoke venting
controls
Yes, depending on building specifications.
18
Outputs: for manual air venting controls
Yes, depending on building specifications.
19
Outputs: for control actuators
Yes, depending on building specifications.
20
No. and type of control actuators
Comfort and fire air fans; axial and linear fire and comfort
system actuators; electromagnetic release units and
latches; 0–10 V / 4–20 mA transducers; smoke venting
control panels; sound alarms; optical alarms; weather
stations; smoke detectors; CO and LPG detectors;
information display panels; BMS; control keys and
keypads; louvres; doors/gates.
The number depends on building specifications.
21
Outputs: dry relays for fire alarm /
failure status output
Yes, depending on building specifications.

mcr OMEGA pro Power and Control Panel
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5. INSTALLATION AND CONNECTIONS ___________________________________
Choose the installation site for the mcr OMEGA pro to
provide sufficient service access clearances;
keep the temperature and relative humidity within the rating limits;
have the device enclosed with a fire partition (as installed e.g. in power switching rooms, technical
rooms, cable shafts, etc.).
The mcr OMEGA pro Power and Control Panel requires uninterruptible(secure or redundant) power supply
which shall be provided from a separate fire power supply section of the building's main switchboard to
guarantee continued operation, even in the event of a fire. The mcr OMEGA pro connected to fire
protection equipment shall be installed as close to the power loads as possible to minimize voltage dips.
The outfeed bays and protections for the mcr OMEGA pro shall be properly labelled (with red colour and
the panel number, or with a text sign). It is recommended to have one mains current breaker connected
per each Power and Control Panel. DO NOT connect any other loads to the mains current breaker of the
Power and Control Panel.
Install the Power and Control Panel enclosure on a vertical surface with metal fixtures compatible with the
surface material and the weight of the Panel.
The supply and output (live) lines shall be wired with PH performance properties and a class compatible
with § 187 of the „Technical Requirements for Buildings and Locations Thereof (Polish Regulation of the
Ministry of Infrastructure dated 12/03/2009, ref. Dz.U.75.690, as amended).
All electrical connections shall:
be made exactly as shown in the electrical wiring diagram enclosed with this Power and
Control Panel;
be made by personnel with relevant qualifications which have been certified as required by
current laws;
be made with a selection of cables and conductors and their fire resistance classes that meet
the electrical installation design for the building and applicable laws;
be passed through the cable glands that must be properly tightened to maintain the IP rating
of the Power and Control Panel.
5.1. ACTUATOR CONNECTIONS
The actuators can be interfaced with the Power Control Panel either in groups or separately (this
applies both to power and monitoring signals). The output connections from actuator position limit switches
on dampers shall be adapted to themonitoring and alarm positions of eachdamper. Connect EOL resistors
R=10kΩ to all limit switch signals.The resistor installation should be inthe terminal box next to the actuator
or at the input terminals of the Power and Control Panel, as shown in the wiring diagrams below (the
resistors are in red). The resistors are also identified on the electrical wiring diagram provided with this
Power and Control Panel. The standard MERCOR dampers feature BELIMO actuators. Other actuator
brands can be compatible with the resistors, as long as their operating principle matches the wiring
diagrams and the functional description herein..
Proper connections with the EOL resistors is essential for continuity tests of the damper
position monitoring lines. The programmable resistors shall be firmly and permanently
connected to respective wiring and terminals. It is recommended to connect the
programmable resistors with crimped terminals or by soldering..

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INDIVIDUAL ACTUATOR WIRING
Return spring actuator e.g.
BELIMO type BF, BFG, BFL, BFN
(spring-action closed)
NO or NC.
Fig. 14.Return spring actuator diagram, spring
closing .
Double action electric actuator e.g.
BELIMO type BE
NO
For MERCOR brand dampers only.
Fig. 15. Wiring diagram: electric actuator, NO.
Return spring actuator e.g.
BELIMO type BF, BFG, BFL, BFN
(actuator driven opening),
NC.
Fig. 16. Return spring actuator wiring diagram,
actuator opening. .
Double action electric actuator, e.g.
BELIMO type BE
NC
For MERCOR brand dampers only.
Fig. 17.Wiring diagram: electric actuator, NC.
Damper
Damper
Damper
Damper
Cabinet
Cabinet
Cabinet
Cabinet
T-Box
T-Box
T-Box
T-Box

mcr OMEGA pro Power and Control Panel
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ACTUATOR GROUP WIRING
Return-spring actuators, e.g. BELIMO type BF, BFG, BFL or BFN (spring-action closing movement)
NO or NC
Fig. 18. Wiring diagram: return spring actuators, spring closing, NO or NC.
CAUTION:
Connect all S1 and S2 contacts in parallel.
Connect all S4 and S5 contacts in series.
Return-spring actuators, e.g. BELIMO type BF, BFG, BFL or BFN (actuator-driven opening movement)
NC.
Fig. 19. Wiring diagram: return spring actuators, actuator opening, NC.
CAUTION:
Connect all S1 and S3 contacts in parallel.
Connect all S4 and S6 contacts in series.
Cabinet
Cabinet
Damper
Damper
Damper
Damper
Damper
Damper
T-Box
T-Box
T-Box
T-Box
T-Box
T-Box