Siemens ZAM-180 User manual

A24205-A334-B832 (Edition 1) s

P/N 315-035600-2

Figure 1

ZAM-180

Installation Instructions

Model ZAM-180

Zone Amplifier Module 180W

500-035600 / S24235-B6-A2 (70V) / S24205-B6-A3 (100V)

INTRODUCTION The ZAM-180 is a CAN data bus module that contains two speaker zones and

one audio amplifier, capable of operating at 25(150W), 70(180W) or

100(165W) VRMS. The two speaker zones can be wired and operate as either

a single Class A zone or a single Class

B zone or as two Class B zones

independently protected to provide

split zone or interleaved speaker

zones.

The ZAM-180 can also be used as a

backup amplifier to serve as a backup

for other ZAM-180 amplifiers in a 1 to

1 backup or 1 to many backup.

The ZAM-180 also contains a local

external audio input circuit (0 dB) and

a dry contact input to switch on the

amplifier and activate the zones as

configured via the Zeus tool. The

ZAM-180 is capable of amplifying any

one of the 8 audio channels that are

transmitted from the DAC-NET

(Digital Audio Card) via the internal

digital Audio bus ASI (Audio Serial

Interface).

The ZAM-180 mounts at the back of

the enclosure of the FireFinder-

XLS system and occupies ¼ of the

total space of the Mounting Plate

CAB-MP.

Features ZAM-180 features are as follows:

•Digital (Class D) audio power amplifier with 180W RMS output

power (70VRMS)

•Over all efficiency about 80% under full load

•Amplifier is supervised for functionality

•Amplifier is protected against open, short circuit, over current and

over modulation

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 2

•Speaker lines are supervised for open, short circuit and ground fault

•The ZAM-180 is micro controller controlled

•A FPGA controls the digital audio data stream (ASI Bus) transmitted

by the DAC-NET

•SW update via PMI

OPERATION The ZAM-180 receives its control and communication data from the DAC-NET

and sends its status data to the DAC-NET via the CAN Bus. Therefore it takes

1 sub-address of the DAC-NET.

The transmission of compressed or

uncompressed audio data from the DAC-NET

to the ZAM-180 is realized via ASI (Audio Serial

Interface). Transmission on the ASI is executed

with a timeslot method and is synchronized

with Frame and Bit Synchronize Signals. Via

control data on the CAN Bus, the timeslots are

allocated to each ZAM-180. Each ZAM-180 is

configured to listen to its corresponding

timeslot.

A local audio input is provided to connect an

external audio source. The audio input is

isolated on the ZAM-180 to prevent ground

loops. The local audio input is activated via an

external contact. The control of this input will

be executed by the amplifier directly. The

ZAM-180 will send a message informing the

DAC-NET that the ZAM-180 has turned on the

local input. It is also possible to

activate/deactivate the local input on the

control panel via CAN bus.

The speaker lines are individually supervised

for open and short circuit. Ground fault is

detected in common for both speaker lines

on each ZAM-180.

The speaker lines are supervised in both the

inactive and active state. The speakers must

be AC-coupled.

Controls and Indicators The ZAM-180 has one Reset button, eight diagnostic LEDs, level adaptation

of the local external audio input and the CAN address switches, one terminal

block, two terminal connections and two 60 pin flat ribbon connections as

shown in Figure 2.

A reset switch is located on the top of the front panel. Pushing the reset

switch re-initializes the ZAM-180 operation.

Figure 2

Terminal Blocks

Controls and Indicator

Terminal Connections

Power Input

24VDC @ 12A

CAN

TO CC-5

24V 0V

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 3

The LEDs functions are defined as follows:

LED COLOR NORMAL

STATE OFF NORMAL

STATE ACTION IN OFF NORMAL STATE

POWER green ON OFF –external

voltages fail Check for failure on PSC, CC-5, wiring

MODULE FAIL yellow OFF ON –general

trouble at ZAM Failure on ZAM, ZAM-180 needs to be replaced

CAN FAIL yellow OFF ON –CAN interface

trouble Failure on AIC, DAC-NET, CC-5, back plane or

other CAN cards/modules

ASI FAIL yellow OFF ON –ASI interface

trouble Failure on “ASI OUT“ and/or “ASI IN“ at this

ZAM-180

ZONE ACTIVE green OFF ON –Speaker zone

active Indicates normal operation on speaker zone

ZONE TRBL yellow OFF ON –Speaker zone

trouble, open circuit

or short circuit

Check wires to the speakers, EOL resistor(s)

and de-coupling capacitors on every speaker

ZONE GND

FAULT yellow OFF ON –unwanted

earth ground

connection on a

speaker line

Check wires to the speakers for earth ground

connections

OVERLOAD Yellow OFF ON Refers to Local Audio input only: Press “DOWN”

push button until “OVERLOAD” LED turns off

and “NORMAL” LED turns on

NORMAL Green ON OFF Refers to Local Audio input only: No audio

signal or audio signal too high/low

LOW yellow OFF ON Refers to Local Audio input only: Press “UP”

push button until “LOW” LED turns off and

“NORMAL” LED turns on

Terminal Connections: These terminals are used for field wiring as

shown in Figure 12

Power Input: This terminal block is non power limited and

can supply up to 12A.

This Input is connected to the output terminal

TB4 of the PSC-12/PSX-12.

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 4

PRE-INSTALLATION The ZAM-180 takes one sub-address on the DAC-NET. To configure the CAN

address use the two rotary-switches on the front panel (refer to Figure 2)

Remove screws as shown in Figure 3 on the left and the right side of the

ZAM-180 housing and remove the front plate.

Figure 3

Position Of The Securing Screws

For setting the speaker line voltage and the low frequency cutoff see

Figure 4.

Figure 4

Position of Connectors X4, X36 and X35 and Jumpers X28 and X21

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 5

Setting the Speaker Line Voltage

The speaker line voltage is set with connector terminals X4, X36 and X35.

The amplifier supervision has to be configured for the appropriate line

voltage, too. Amplifier supervision is configured with jumpers on header X28.

Speaker Line Voltage 100V

Plug in the coded connector on connector terminal X35

and set jumper X28 position 1-2.

Figure 5 Jumper Position 100V

Speaker Line Voltage 70V

Plug in the coded connector on connector terminal X36

and set Jumper X28 position 2-3.

Figure 6 Jumper Position 70V

Speaker Line Voltage 25V

Plug in the coded connector on connector terminal X4.

There is No jumper on X28.

Figure 7 Jumper Position 25V

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 6

Setting the low frequency cutoff

Low frequency cutoff can be set for 240Hz or 85Hz. This setting acts on both

local audio input and on all digital channels.

Setting for 240 Hz protects small speakers from being overload with bass

impulses. Speech intelligibility may be improved. This setting is not

recommended for higher quality music reproduction.

85Hz: Set no jumper on X21

Figure 8

Jumper Position 85 Hz

240Hz: For 240Hz low frequency cut-off two jumpers have to be set.

Never set only one jumper.

Figure 9

Jumper Position 240 Hz

After having done these pre-installations install the front plate and secure it

again.

INSTALLATION

Remove ELECTRICAL POWER prior to working on equipment.

The ZAM-180 mounts on the Mounting Plate (CAB-MP). The Mounting Plate

may be located either “IN” or “OUT” of the enclosure to perform this

installation procedure. If the Mounting Plate is located “IN” the enclosure you

will have to gain access to it by opening the enclosure Inner and Outer doors.

If the Mounting Plate is located outside of the enclosure, place it in front of

you so that the word “TOP” is at the top and away from you.

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 7

Figure10

Location Of The ZAM-180 On The CAP-MP

The ZAM-180 can occupy any position on the mounting plate, but is normally

installed on the right side of the Mounting Plate (Refer to Figure 10). When

the ZAM-180 is mounted correctly on the Mounting Plate it will be flush on

the top, bottom, and right with the Mounting Plate and the mounting screw

holes of the PSC-12 will align with the threaded posts.

Figure 11

Mounting the ZAM-180 On The CAP-MP

1. Install four 10-32 (M5) screws in the threaded posts at the

mounting position. Screw each of the 10-32 (M5) screws into the

threaded posts 5-6 turns.

2. Place the ZAM-180 over the four screws on the Mounting Plate

and slide it down or towards you to rest on the four screws.

(Refer to Figure 11.) When the ZAM-180 is in the correct position

it will be flush with the top, bottom and right side of the

Mounting Plate.

3. Tighten the four screws.

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 8

WIRING

Remove ELECTRICAL POWER prior to working on equipment.

All field wiring of the ZAM-180 is connected to the terminal blocks on the

upper side of the ZAM-180.

The screw terminals can accommodate one 12-24 AWG(Ø 0,5mm-2,5mm²)

or two 16-24 AWG, (Ø 0,5mm-1,0mm²).

To connect external wiring Lift the white cover on the terminal block.

Loosen the screw of the terminal by turning it counterclockwise.

Insert the wire into the side of the terminal block.

Tighten the screw of the terminal block by turning it clockwise

Power Input

24VDC @ 9.5A Max. Non-Power

Limited Output

24VDC @ 12A

24V 24V

0V 0V

Loc. Audio IN A

Back-Up Amp B

Back-Up Amp A

Speaker Line 1A

Speaker Line 1B

Speaker Line 2A

Speaker Line 2B

Loc. Switch A

Earth ground

Loc. Switch B

Loc. Audio IN B

TB1

TB3

ZAM-180 PSC-12

BATTERY

OFF

O —

Figure 12

ZAM-180 Input Power Wiring

NOTES

1. 18AWG (1,5mm²) min.

2. 9.5A max. input current

per ZAM-180.

3. Not power limited.

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 9

The configuration of the speaker lines is selectable between Class A,,

Class B, or 2 x Class B.

Class A: The speaker line is looped back to the system. The end of line

resistor (EOL) is connected directly at the ZAM-180 (CC-5/-2). In this

configuration the line works during an open circuit condition by feeding it

from both sides. In the short circuit condition, the speaker line is not

functional.

Figure 13

ZAM-180 Class A Wiring

NOTES (Local Audio)

1. 24AWG (Ø 0,5mm) min., 12 AWG (2,5mm²)max.

2. Use twisted pair or shielded twisted pair.

3. Terminate shields at one end only.

4. Must be within 20 feet and in rigid conduit.

NOTES (Speaker Lines and Backup Amplifier)

1. Wiring can be Class A or Class B.

2. Use twisted pair or shielded twisted pair.

3. Terminate shields at one end only.

4. Supervised and not power limited.

NOTES (Local Switch)

1. 24AWG (Ø 0,5mm) min., 12AWG (2.5mm²) max.

2. Use twisted pair or shielded twisted pair.

3. Terminate shields at one end only.

4. Must be within 20 feet and in rigid conduit.

5. Connect to dry contacts only.

Loc. Audio IN A

3 5 72 4 6 8

911

Speaker Line 2 B

Back-Up Amp B

Back-Up Amp A

Speaker Line 2 A

Speaker Line 1 A

Speaker Line 1 B

Loc. Switch A

Shield

Loc. Switch B

Loc. Audio IN B

Speaker Line 2A

Speaker Line 1A

Speaker Line 1 B

EOL = 68k

P/N 140-034728

(

US/CA

)

C24235-A1-K13 (DE)

68k

shipped with the ZAM-180

SUPERVISED

NOT POWER LIMITED

A24205-A334-B832 (Edition 1)

P/N 315-035600-2 10

Class B: A configuration, where the end of line resistor is at the end of the

speaker line. The ZAM-180 is capable of single Class B wiring if the

unused speaker line is connected to an EOL

Figure 14

ZAM-180 Class B Wiring

NOTES (Local Audio)

1. 24AWG (Ø 0,5mm) min., 12 AWG (2,5mm²) max.

2. Use twisted pair or shielded twisted pair.

3. Terminate shields at one end only.

4. Must be within 20 feet and in rigid conduit.

NOTES (Speaker Lines and Backup Amplifier)

1. Wiring can be Class A or Class B.

2. Use twisted pair or shielded twisted pair.

3. Terminate shields at one end only.

4. Supervised and not power limited.

NOTES (Local Switch)

1. 24AWG (Ø 0,5mm) min., 12 AWG (2,5mm²) max.

2. Use twisted pair or shielded twisted pair.

3. Terminate shields at one end only.

4. Must be within 20 feet and in rigid conduit.

5. Connect to dry contacts only.

Loc. Audio IN A

5 72

468

911

Back-UpAmp B

Back-Up Amp A

Speaker Line 1 A

Speaker Line 1 B

Loc. Switch A

Shield

Loc. Switch B

Loc. Audio IN B

Speaker Line 1 A

Speaker Line 1 B

***

68k

shipped with the ZAM-180

In Canada, mount using Model EL-33.

SUPERVISED

NOT POWER LIMITED

EOL = 68k

P/N 140-0347289 (US/CA)

C24235-A1-K13 (DE)

EOL = 68k

P/N 140-034728 (US/CA)

C24235-A1-K13 (DE)

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