Siemens ZAM-180 User manual

A24205-A334-B832 (Edition 1) s
P/N 315-035600-2
1
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)
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•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
s
Terminal Connections
Power Input
24VDC @ 12A
CAN
TO CC-5
24V 0V

A24205-A334-B832 (Edition 1)
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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)
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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)
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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)
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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)
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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)
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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
1 3 5 7 2 4 6 8
9 11 13 15 10
12
14 16
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
Earth ground
Loc. Switch B
Loc. Audio IN B
TB1
P5
P4
TB3
ZAM-180 PSC-12
BATTERY
OFF
O —
ON
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)
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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
1 3 5 72 4 6 8
911 13 15 10 12 14 16
Speaker Line 2 B
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)
*
12
9
1
11
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
1 3 5 72 468
911 13 15 10 12 14 16
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
*
***
12
9
1
11
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)