Siemens SLIM Manual de usuario

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P/N 315-034904C-3

OPERATION The Model SLIM Loop Isolator Module from Siemens Industry, Inc. isolates short

circuits on FS-250C analog loops. By placing devices between SLIMs during installa-

tion, a short in the wiring within that group is disconnected from the rest of the loop.

The remainder of the devices continue to operate.The SLIM operates in both Class A

and Class B circuits.

A yellow LED flashes when a device detects a short circuit. The SLIM then isolates

that part of the loop. When the short is removed, the SLIM automatically restores

the loop to normal operation.The SLIM does not have a loop address and therefore

does not require address programming nor does it reduce the loop capacity below

252 devices.

Remove all system power before installation, first the battery and then the AC.

ELECTRICAL RATINGS Voltage: 24 Vdc

Current: 1mA max

INSTALLATION The SLIM is a polarity insensitive module. Refer to Figure 1 for the location of the

two input terminals, two output terminals and earth ground. Line 1 and Line 2 can be

either line of the loop.

Terminal Number Description

1 In — Line 1

2 In — Line 2

3 Out — Line 1

4 Out — Line 2

5 Earth Ground

Mechanical Installation (See Figure 2)

• Use a standard 3 1/2-inch deep, double gang electrical

switchbox or a 4-inch square electrical box that is 2 1/8 inches

deep.

• Connect the field wiring. Press the SLIM into the box and

fasten the module plate to the box.

• Cover the module front plate with the plate supplied and

fasten with screws supplied.

Figure 1

SLIM-1 Module

Loop Isolator Module

Installation Instructions

Model SLIM

SWITCHPLATE

5-INCHES SQUARE

(SUPPLIED)

SWITCHPLATE

5-INCHES SQUARE

(SUPPLIED)

4-INCH SQUARE BOX

2 1/8-INCHES DEEP

DOUBLE GANG BOX

3 1/2-INCHES DEEP

Figure 2

Mounting the SLIM

Figure 3

SLIM Wiring Diagram - Class B Installation

The SLIM may be used in two circuit configurations as follows:

Class B (See Figure 3) In Class B wiring each SLIM isolates a branch on the circuit. Note that

a short on the main branch causes the entire loop to fail. To prevent this, mount the

SLIMs at the enclosure and run each branch independently.

Figure 4

SLIM Wiring Diagram - Class A Installation (Single Loop)

1. All wiring must comply with

national and local codes.

2. In order to provide adequate

protection, it is recom-

mended that you do not

install more than 20 devices

on a single SLIM.

3. Minimum wire gauge is

18 AWG.

4. The total wire resistance

(both wires) between SLIMs

cannot exceed 20 ohms.

5. Do not install more than 15

SLIMs per FDLC loop.

6. All circuits are supervised.

7. Refer to the FS-250C

Manual, P/N 315-049589C

for the list of compatible

devices.

8. All terminals are power

limited.

1. All wiring must comply with

national and local codes.

2. In order to provide adequate

protection, it is recom-

mended that you do not

install more than 20 devices

on a single SLIM.

3. Minimum wire gauge is

18 AWG.

4. The total wire resistance

(both wires) between SLIMs

cannot exceed 20 ohms.

5. Do not install more than 15

SLIMs per FDLC loop.

6. All circuits are supervised.

7. Refer to the FS-250C

Manual, P/N 315-049589C

for the list of compatible

devices, as applicable.

8. All terminals are power

limited.

ANALOG LOOP

LINE 1

LINE 2

IN IN OUT OUTIN IN OUT OUTIN IN OUT OUT EARTH EARTH EARTH

TO ANALOG

LOOP RETURN

INSIDE ENCLOSURE

TO ANALOG

LOOP FEED

LINE 1

LINE 2

LINE 1

IN IN OUT OUT

ININ

OUTOUT

EARTH

ININ

OUTOUT

EARTH ININ

OUTOUT

EARTH

IN IN OUT OUT EARTH IN IN OUT OUT EARTH

Siemens Canada Limited

Building Technologies Division

2 Kenview Boulevard

Brampton, Ontario L6T 5E4 Canada

P/N 315-034904C-3

Class A Single Loop (See Figure 4) IIn Class A wiring the SLIMS are wired in series with the loop wiring.

This results in a single continuous loop. If any group in the loop has a short, that

group is lost and a Class A circuit failure results.

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