Siemens PLC-4 Manuale utente

P/N 315-093312-7

P7P5

P2 P4 P6 P8

PLC-4 MODULE BOARD

Circuit 1

dge connector

Edge connector

Circuit 2 Circuit 3 Circuit 4

CB1

P1 P2

PL864-25A/70A

CB1

PL864-25S

Figure 2

PL864 Plug-on Boards

Figure 1

PLC-4 Module Board

Installation Instructions

Model PLC-4

Power Limiting Module

INTRODUCTION

Refer to the MME-3 or MLE-6 Power Limited

Wiring Instructions, P/N 315-094883 or P/N 315-

094970, as applicable, for further information.

The Model PLC-4 from Siemens Industry, Inc.,

(See Figure 1) and its associated PL864 plug-on

boards (See Figure 2) limit the power of the

MXLV system to comply with UL-864. There are

three different PL864 boards that can plug onto

the four slots of the PLC-4:

• the PL864-25A

• the PL864-70A

• the PL864-25S

The PL864-25A and the PL864-70A plug onto

the PLC-4 to limit power to audio circuits. The

PL864-25S plugs onto the PLC-4 to limit power

to strobe circuits.

NOTE: Use the PL-864S for strobe circuits

only. Using the PL-864S for audio

circuits may damage the system.

Use the PL864-70A for 70.7V audio

circuits only.

The PLC-4 plugs onto one of the OMM card

edge connectors. A single PLC-4 with four

PL864 plug-on boards can serve up to four

audio and/or strobe circuits.

The PLC-4 and PL864-25A/70A audio cards do

not supervise themselves. However, since all

audio power to the MXLV system passes

through them, signal losses appear as troubles

for the ASC-1/2 modules.

Siemens Industry, Inc.

Building Technologies Division

Florham Park, NJ

Siemens Building Technologies, Ltd.

Fire Safety & Security Products

2 Kenview Boulevard

Brampton, Ontario

L6T 5E4 Canada

The PL864-25S card supervises strobe power

with a relay that gives a contact closure. A

closure monitoring device can be wired to

terminals 11 and 12 of OMM-1 for strobe power

supervision.

If there is either an audio or strobe loss, follow

the procedure listed below:

1. Check the PLC-4 to see if the circuitbreaker

is tripped.

2. Shut down the system, determine what

caused the circuitbreaker to trip, and fix the

problem.

3. Reset the tripped circuitbreaker.

INSTALLATION

Remove all system power before

installation, first battery and then AC.

(To power up, connect the

AC first and then the battery.)

To install a PLC-4 card in an MXLV system,

follow these steps:

1. Install the PL864 cards into the PLC-4.

a. Determine which PL864 cards are to be

used. Typically, the audio portion of a

voice-equipped fire alarm control panel

is either 25V RMS or 70.7V RMS.

• Use the PL864-25A for 25V RMS

systems

• Use the PL864-70A for 70.7V RMS

systems

• Use the PL864-25S for strobe circuits

in any voice system.

NOTE: The PL864-25S is not re-

quired for strobe circuits

connected to either the

CSM-4 or MMB.

b. Determine which circuits will be used.

Refer to Figure 1 for the location of the

circuits on the PLC-4 board and to

Figure 5 for circuit wiring.

c. Remove the PLC-4 card from its protec-

tive bag.

d. Remove the PL864-25A, PL864-25S, or

PL864-70A cards from their protective

bags.

e. Place the PL864 plug-on cards, one at

a time, over the connectors on the

PLC-4 card for the desired circuits.

1) Locate P1 of each PL864 card near

the edge connector of the PLC-4

card (Refer to Figure 1).

2) Press down until the card seats

properly. Apply pressure near the

connectors—not in the middle of the

card—or damage may result.

3) For systems with 70.7V RMS audio

circuits, take extra care when placing

PL864-25S cards for strobe circuits.

A mixup could damage system

components.

2. Place the PLC-4 card in the OMM slot.

a. Do not install the card in its edge

connector until all OMM field wiring is

completed and checked for shorts,

opens, and other faults.

b. Find the card slot key provided in the

installation kit with the PLC-4 board.

Figure 3

Placing the Card Slot Key in the OMM-1

Figure 4

Location of the User Key for the PLC-4

FACTORY

KEY 1 FACTOR

KEY 2

USER KEY

PIN NUMBERS

ON OMM-1

LOCATION OF THE USER KEY FOR THE PLC-4

50 52

49 51

Place the card slot key in the OMM

edge connector for the PLC-4 as shown

in Figure 3. See Figure 4 for the exact

location of the key for this module. The

key prevents installation of any other

card type in the PLC-4 slot. Two other

keys already installed in the OMM

prevent reverse installation of the card

in the OMM edge connectors. (See

Figure 4.)

c. Place the card in its card edge connector

correctly. The components on the board

must face the 22 position terminal block

where the wiring is terminated. Press

the card firmly in place to be sure it is

seated properly in the edge connector.

CAUTION

At all times handle all plug-in cards with ex-

treme care. When inserting or removing a

card, be sure the position of the card is kept

at right angles to the OMM board. Otherwise,

the plug-in card can damage or displace

other components.

Wiring

(Refer to Figure 5)

All wiring must comply with

national and local codes.

Dress the leads properly. Maintain the proper

routing and distances between the wiring that is

power limited (terminals 15 - 22) and wiring that

is not power limited (terminals 1 - 8). Refer to

the MME-3 or MLE-6 Power Limited Wiring

Instructions, P/N 315-094883 or P/N 315-

094970, as applicable, for further information.

When wiring for strobe cards:

• Connect OMM, terminals 11 and 12, to the

OCC-1 terminal block, terminals 15 and 16

respectively, for supervision of strobe

power.

• Route these wires with the power limited

wires.

Electrical Information

Maximum wire size: 14 AWG twisted pair,

unshielded

Minimum wire size: 18 AWG twisted pair,

unshielded

Input/output ratings for each circuit:

Audio: 100W at 25V RMS

100W at 70.7V RMS

Strobe: 4 amps at 24 VDC (96W)

Figure 5

PLC-4 Wiring Diagram

P/N 315-093312-7

NO CONNECTIONS

STROBE POWER

SUPERVISION

CIRCUIT 3 IN

CIRCUIT 4 OUT

OMM

Terminal

Block

CIRCUIT 3 OUT

CIRCUIT 2 OUT

CIRCUIT 1 OUT

CIRCUIT 1 IN

Wiring shown for Circuit 1 is typical of circuits

used for audio.

Use the PL864-25A for 25V RMS circuits.

Use the PL864-70 for 70.7V RMS circuits.

Maximum wire size: 14 AWG twisted pair, unshielded

Minimum wire size: 18 AWG twisted pair, unshielded

Input/output ratings for each circuit:

Audio: 100W at 25V RMS

100W at 70.7V RMS

Strobe: 24 VDC at 4A (96W)

NO CONNECTIONS

CONNECT TO CLOSURE

MONITORING DEVICE

CONNECT TO CLOSURE

MONITORING DEVICE

AUDIO FROM AMPLIFIER +

AUDIO TO ASC-1 OR ASC-2

AMPLIFIER INPUT +

AUDIO FROM AMPLIFIER -

AUDIO TO ASC-1 OR ASC-2

AMPLIFIER INPUT -

CIRCUIT 2 IN

24 VOLTS +

TO ZC1-8B STROBE CARD INPUT

24 VOLTS -

FROM MMB, PSR-1 OR ANY UL LISTED POWER SUPPLY

MANUFACTURED BY ALARM-SAF, MODEL BN4-002-UL

24 VOLTS+

FROM MMB, PSR-1 OR ANY UL LISTED POWER SUPPLY

MANUFACTURED BY ALARM-SAF, MODEL BN4-002-UL

24 VOLTS -

TO ZC1-8B STROBE CARD INPUT

Terminals1-8are not power limited.

Terminals 15 - 22 are power limited.

Refer to Wiring Specification for MXL,

MXL-IQ and MXLV Systems,

P/N 315-092772 revision 6 or higher,

for additional wiring information.

CIRCUIT 4 IN

(Wiring shown for

Circuit 4 is typical

of circuits used for

strobes. Use the

PL864-25S plug-on

card only.)

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