cofem ZAFIRPWS2-5 External Power Supply Instruction Manual

Cofem ZAFIRPWS2-5 External Power Supply

Presentation of the external power source
The external power source ZAFIR of COFEM represents all the experience learned in the design and manufacture of fire-fighting equipment during its more than 40 years of market presence. This power supply includes different models to suit precisely the needs of each installation, offering two models of different sources: ZAFIRPWS2 (capacity 1.5 amps at 30V output) and ZAFIR PWS5 (4 amps).

Technical characteristics

• External power supply to power fire-fighting equipment at 20-30,5Vdc.
• Power capacity: 1,5 amps for model ZAFIRWS2 and 4 amps for ZAFIRPWS5 model.
• 1 output of fault from dry contact C/NO/NC (Common/ Normally Open/ Normally Closed). This output allows integration with other systems.
• 1 auxiliary output of 20 ~ 30,5Vdc supervised and protected by a fuse for external power supply of fire doors electromagnets, sounders, relay modules, etc.
• 1 output battery with the ability to load and supervise two 12V 7Ah batteries connected in serial.
• Metallic chest frontally bolted door, 4 knockouts of 28mm, and 1 rectangular in the bottom of 140 x 44mm for the passage of wiring and space for 2 batteries 12V 7 Ah.
• Dimensions: 363 x 331 x 96 mm.

Technical specifications

Supply voltage| 110-230V ±10%

50-60Hz/AC

| Battery charger| 0~700 mA 27~29,5V/DC
---|---|---|---
Output voltage| 29,5V/DC| Output current ZAFIRPWS2 Imax a 3)| 1,5 A3)
Output voltage range 1)| 20 ~ 30,5V/DC1)| Output current ZAFIRPWS5 Imax a 3)| 4 A3)
Unload consumption 230V/AC| 50 mA| Fault output| Yes
Loaded consumption 230V/AC| 550mA| Maximum battery circuit resistance| 470mΩ
Maximum current from the equipment powered by

battery

|

30mA

|

Environmental conditions

|

-5ºC +40ºC 20%-93% HR

Batteries| 2 x 12V 7Ah SLA| Dimensions| 363 x 331 x 96 mm
Fuse batteries| 4 A| Weight (without batteries) ZAFIRPWS2/5| 3,8 Kg / 4,2 Kg
Fuse 30V| 4 A| Standard| EN 54-4
Fuse network 2)| 4 A2)| Degree of protection| IP30
1)     Voltage range with supply voltage and battery (up to the limit of discharge)

2)     The line fuse is mounted on the model ZAFIRPWS2

3)     Maximum output currently with maximum battery charge

Description of components

• Power supplies ZAFIRPWS2 / 5 are composed of the following elements
• Box (360 x 326 x 85 mm): It has space for batteries and switching power.
• Label holder: It is fitted to the upper frontal part of the box. It serves as a support for the control circuit in the rear side, and for the label on the outside.
• It has a ground cable connecting the closest pin to the axe of rotation with another pin sited inside the box or fast on.
• Door (368 x 336 mm): which is the fox by 4 front bolts near the corners (Letter C figure 1)
• Cover: figure 6.
• Control circuit: fixed to the back of the label holder, it contains the terminal connections poking out below the label holder.
• Batteries: the control panel has reserved space at the bottom of the box. Supports up to 2 batteries 12V 7Ah.
• Switching power: it is fixed to the bottom of the box in the top center behind the label holder.

Installation

Regarding the box, it is equipped with 4 circular knockouts of 28 mm and 1 rectangular 140 x 40 mm to allow access to wiring to the box (Letter A Figure 1). To install the box to the wall, there are 4 holes distributed on the back side near the corners. 2 rounds in the bottom of 8 mm diameter, and 2 ovals on top (Letter B figure 1). It is recommended to use a cable of 2 x 1,5mm twisted, shielded, and halogens-free for the fault and 30V output. The output wiring of batteries will be supplied with the equipment. It is important for the 30V output to keep in mind the resistance of the cable, length, and charge to calculate the appropriate section of the cable section; 2.5 mm maximum. Therefore, the installation of the control panel is as follows (see Figure 1):

• Check that the place where the equipment will be installed is according to the temperature and humidity of the operating equipment (-5ºC ~ +40ºC / 20% ~ 93%).
• Check that there is enough space to put the equipment and that nothing hinders its proper ventilation.
• Check that the equipment is in good condition. Otherwise do not continue installing the equipment and contact your dealer.
• Remove the door of the box by removing the bolts of the corners (Letter C Figure 1).
• Make the necessary holes for attaching the panel to the wall. Keep in mind the holes in the corners of the chest.
• Open knockouts are required for passing cables to the control panel (Letter A Figure 1).
• Mount the box on the wall using the holes (Letter B Figure 1).
• Place two 12V 7Ah batteries in the box of the power source.
• Make the necessary connections according to the installation requirements, the equipment used, and the power source.
• The power source must be connected to the 3 power terminal networks (phase, neutral, and ground), as shown in Figure 5.
• Connect the equipment to the network and then connect the corresponding batteries.
• During the first 30 seconds, the equipment does a self-test. After these 30 seconds, the equipment must be idle (red led on, battery led and fault led off).

Having to manipulate the label holder, be careful with the ground cable that connects one of its pins with the pin of the box and the cable connector that connects the control circuit with the switching power.
Note 1: Any connection and/ or manipulation of the external power supply must be disconnected from the electrical network and batteries.
Note 2: the box is designed with an IP30 protection index. If it is necessary to open the side knockouts for cable passage (letter A in Figure 1), consideration should be given to blocking the remaining space of the hole, for example with cable glands, to keep this same protection.

Figure 3: wiring diagram for addressable system and voltage-free relay with electromagnet

Maintenance

The points to consider for proper maintenance are:

• Clean the outside of the power supply, especially the ventilation holes.
• Check that the place where the equipment is installed according to the temperature and humidity operating equipment -5ºC ~ +40ºC / 20% ~ 93%.
• Check that there is enough space for proper ventilation.
• Check that the equipment is in good condition.
• Perform a visual inspection of the contacts of the different outputs.
• Change the batteries every 4 years.

Outputs

Fault output Maximum charge 0.5 A at 24V Dry contact output is unsupervised which is activated by any anomaly of the external power supply and allows integration with other systems. With the external power supply under fault conditions or unpowered state, the common contact – Normally Open /NO) relay is short-circuited indicating BREAK DOWN. With the control unit powered without faults, the Common contact – Normally Open (NO) relay is electrically open.

Auxiliary output of 30V

• CPWS2 20~30,5Vdc electricity 0 ~ 1,5 A.
• CPWS5 20~30,5Vdc electricity 0 ~ 4 A.
• Output is supervised and protected by a fuse, which allows the electrical feed of any element of the fire detection system that needs an external power supply.

Batteries outputs

• 27 ~ 29,5Vdc charge 0 ~ 700mA.
• The battery output is supervised and protected by a fuse. It allows battery connection to the external power supply.
• Through this connection battery charging and status monitoring are performed.
• This output is protected against reverse polarity.
• It is recommended to use SLA 12V 7Ah type batteries.

Fuse

1. The network supply fuse is used in the ZAFIRPWS2 model

Input power 230 VAC

Power connectors 230V±10% 50-60Hz/AC in the ZAFIRPWS2 model. Connection via 3 terminals connectors of the switching power in the ZAFIRPWS5 model.

Wiring

It is recommended to use a CABLE OF 2 x 1.5 mm TWISTED AND SCREENED, HALOGENS FREE for the fault output and output 30V. The output wiring of batteries will be supplied with the equipment. Important to output 30V to keep in mind the resistance of the cable length and charge to calculate the appropriate section of the cable, maximum section 2,5 mm.

Operation

Coming up next the meaning of the luminous signs on the front of the power supplies ZAFIRPWS2/5 are described:

Hereafter there is the description of the leds

Idle state During the idle state leds remain

Fixed electrical network.

Battery off.

Fixed general fault

| It indicates that the electrical network supply fails with not enough voltage. This anomaly is detected when the voltage of the control circuit is in the range of 22~28Vdc.
High voltage at Network supply| Fixed network Battery off

Fixed general fault

| It indicates that the electrical network supply fails exceeding voltage. This is detected because voltage of control circuit is over 31 Vdc, and 30

Vdc output is cut.

Low voltage at Network supply and batteries| Fixed network Intermittent battery (780mHz)

Fixed general fault

|

It indicates that voltage of control circuit is below 22 Vdc. 30 Vdc Output is cut.

Fuse 30V

| Fixed network Battery off

Fixed general fault

| It indicates that the FUS2 30V of 4 A has been opened. This anomaly is detected by the lack of output voltage of 30V.

Output 30V

| Fixed network Battery off

Fixed general fault

|

It indicates that the output voltage of 30V is out of range 20~30,5Vdc.

Battery charger

| Fixed network Battery off

Fixed general fault

| It indicates a fault in the battery charger. Disconnecting batteries, the output voltage of battery is out of range 27~29Vdc.

Batteries fuse

| Fixed network Battery off

Fixed general fault

| It indicates that FUS3 BATTERY of 4A has been opened. This anomaly is detected by the lack of voltage at the output battery.

Low batteries

| Fixed network Battery off

Fixed general fault

| It indicates that the battery voltage is below 21Vdc. This anomaly is

detected by checking the voltage of the batteries when disconnected from the control panel.

No batteries

| Fixed network Battery off

Fixed general fault

|

It indicates that the batteries are not connects or connected incorrectly.

Internal resistance battery| Fixed network Battery off

Fixed general fault

|

It indicates that the internal resistance of the battery exceeds 0,47Ω.

General fault off.

The system is in an idle state when the mains electrical power is correct, and the batteries are in good condition and properly connected.

General Faul State
Below we will describe the different faults that can occur in the power supply and how it is characterized.

Equipment with electrical Network powered
Equipment with batteries and NO electrical Network Certification of Power supply equipment for fire detection and fire alarm systems in buildings

Fixed general fault

| It indicates that there is not electrical network supply, and batteries are working with low voltage.

The control circuit is fed under 22 Vdc with only low battery voltage.

Fuse 30V

| Network off Intermittent battery (12Hz)

Fixed general fault

|

It indicates that the FUS2 30V output of 4A is open. This anomaly is detected because of the lack of voltage in the 30 Vdc output.

Output 30V

| Network off Intermittent battery (12Hz)

Fixed general fault

|

It indicates that 30V output is out of the voltage range of 20 ~ 30,5V.

Low batteries

| Network off Intermittent battery (780mHz)

Fixed general fault

| It indicates that the battery voltage is under 21 V, and the 30 V output is cut. This fault is detected by measuring the battery’s voltage disconnected from the equipment.

NOTE
COFEM S.A. reserves the right to carry out changes due to typographical errors, printouts of the current information, or improvements to programs and/or equipment at any time and without prior consent.

FABRICANTE DE PRODUCTOS CONTRA INCENDIOS– FIRE PROTECTION MANUFACTURER
FABRICANTSDE PRODUITS CONTRE INCENDIES
C/ Compositor Wagner, 8 – P. I. Can Jardí – 08191 RUBÍ (Barcelona) ESPAÑA.
Tlf.: +34 935 862 690 – cofem@cofem.com – www.cofem.com

References

• COFEM Tecnología y Protección Contra Incendios

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