Operating Power

Installation

2.2 Operating Power

WARNING: Several different sources of power can be connected to this panel. Disconnect all sources of power before servicing. The panel and associated equipment may be damaged by removing and/or inserting cards, modules or interconnecting cables while this unit is energized.

 

Primary Power Source (AC) and Earth Ground Connections

 

AC power connections are made inside the control panel cabinet. The primary power

 

source for the panel is 120 VAC, 50/60 Hz, 2.3 amps for the MS-2/MS-4 or 240 VAC,

 

50 HZ, 1.15 amps for the MS-2E/MS-4E. Run a pair of wires (with ground conductor)

 

from the protected premises main breaker box to TB8 of the main circuit board. As per

 

the National Electrical Code, use 14 AWG (2.00 mm2, 1.6 mm O.D.) or heavier gauge

 

wire with 600V insulation. No other equipment may be connected to this circuit. In

 

addition, this circuit must be provided with overcurrent protection and may not contain

 

any power disconnect devices. A separate Earth Ground connection must be made to

 

ensure proper panel operation and lightning and transient protection. Connect the Earth

 

Ground wire [minimum 14 AWG (2.00 mm2)] to the transformer mounting stud. Do

 

not use conduit for the Earth Ground connection since this does not provide reliable

 

protection.

 

Secondary Power Source (Batteries)

 

Observe polarity when connecting the battery. Connect the battery cable to J8 on the

 

main circuit board using the plug-in connector and cable provided. The battery charger

 

is current-limited and capable of charging sealed lead acid batteries. The charger shuts

 

off when the system is in alarm.

 

WARNING: Battery contains sulfuric acid which can cause severe burns to the skin

!

and eyes and can destroy fabrics. If contact is made with sulfuric acid, immediately

flush the skin or eyes with water for 15 minutes and seek immediate medical attention.

Optional second transformer shown installed

SIGNAL TRANSFORMER

XX-XXX-XXXXXX Rev X

Standard transformer

TRANSFORMER

XXXXXX Rev X

SIGNAL

XX-XXX-

Earth ground wire shown connected to transformer mounting stud

+

-

+

-

TB2 TB1

 

 

 

TB3

 

 

TB5

 

NC NOTB6

C

NC

NO TB7

B+ B-

B+

B-

B+ B- B+ B-

B+ B- B+ B-

C TRBL NORM

C

Nonreset

Resettable

NAC 1

NAC 2

 

ZONE 1 ZONE 2

ZONE 3 ZONE 4

TROUBLE

 

ALARM

 

SUPV

 

 

 

CLASS A

JP3

 

 

CONVERTER

J1

 

 

 

 

 

 

J3

ZONE 1

 

 

 

FIRE ALARM SUPERVISORY

TROUBLE

MAINTENANCE

J5

 

 

 

 

ZONE 2

 

 

FIRE ALARM

SUPERVISORY

TROUBLE

MAINTENANCE

 

 

 

ZONE 3

 

 

 

FIRE ALARM

SUPERVISORY

TROUBLE

MAINTENANCE

 

 

 

ZONE 4

 

 

 

FIRE ALARM

SUPERVISORY

TROUBLE

MAINTENANCE

AC

NAC

ZONE

NAC

SYSTEM

POWER

WALK

ALARM

POWER

DISABLE

DISABLE

FAULT

TROUBLE

TROUBLE TEST

SILENCE

ACK

ALARM

RESET

WALK

 

SILENCE

ZONE

TEST

 

ENABLE/DISABLE

 

2

1

2

3

4

 

J4

 

J9

 

 

 

 

 

 

 

 

 

JP2

JP1

J6

 

 

 

 

 

 

TB8

 

 

1

O

1

O

1

O

 

 

 

 

2

N

2

N

2

N

 

 

 

EARTH BATT CHG

3

 

3

 

3

 

1

J7

J8

 

4 5

 

4 5

 

4 5

 

 

 

 

7

 

7

 

7

 

 

 

 

 

6

 

6

 

6

 

 

 

 

 

8

 

8

 

8

 

SW1 SW2 SW3

ms4powr.cdr

Figure 2.3 Operating Power Connections

MS-2/MS-4 PN 51512:E 01/18/05

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Honeywell MS-2 Operating Power, Primary Power Source AC and Earth Ground Connections, Secondary Power Source Batteries

MS-2 specifications

The Honeywell MS-2 is a sophisticated control panel designed for fire alarm detection systems. It is renowned for its reliability, efficiency, and advanced features which make it a popular choice among industry professionals. The MS-2 is especially well-suited for small to medium-sized commercial buildings, providing comprehensive fire detection and alarm capabilities.

One of the standout features of the Honeywell MS-2 is its dual-loop architecture. This allows for the connection of two loop circuits, each capable of supporting a wide range of devices such as smoke detectors, heat detectors, and manual pull stations. This flexibility in device connectivity enables tailored solutions based on specific building requirements, ensuring maximum safety and compliance with fire codes.

The MS-2 incorporates a user-friendly graphical interface that simplifies operation and monitoring. This LCD display provides real-time system status updates, which allows users to quickly identify any issues or alarms. Moreover, it features intuitive navigation buttons, making it easy for operators to interact with system functionalities.

In terms of technology, the MS-2 is built upon a robust digital platform that ensures precise detection and response times. With advanced signal processing capabilities, the system can differentiate between actual fire signals and nuisance alarms, thereby minimizing false alarms. This not only enhances safety but also reduces unnecessary disruptions and maintenance costs.

The MS-2 also supports addressable technology, enabling precise identification of device locations within the system. This is particularly beneficial in emergency situations where rapid response is critical. Furthermore, the panel can facilitate remote monitoring, allowing for real-time data access and integration with building management systems, thereby enhancing overall operational efficiency.

Another noteworthy characteristic of the Honeywell MS-2 is its compliance with various industry standards, ensuring that it meets the stringent requirements of fire safety regulations. The system is compatible with a wide range of Honeywell's fire alarm devices, offering versatility and scalability for future expansions.

In conclusion, the Honeywell MS-2 fire alarm control panel combines advanced technology, user-friendly design, and robust features to deliver reliable fire safety solutions. Its dual-loop capability, addressable technology, and real-time monitoring make it an ideal choice for businesses aiming to enhance their fire safety infrastructure. By choosing the MS-2, organizations can better protect their assets, ensure compliance, and safeguard the lives of occupants.