Siemens PSC-12 User manual

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P/N 315-033060-19
12 Amp Power Supply
Installation Instructions
Model PSC-12
Figure 1
PSC-12 12 Amp Power Supply
INTRODUCTION The Model PSC-12 from Siemens Industry, Inc., is a high current power supply that
provides the FireFinder-XLS/Desigo Fire Safety Modular/Cerberus PRO Modular
system with primary regulated 24VDC. It is rated at 12A and has a built-in charger that
is capable of charging up to
100AH batteries. It also has a
microprocessor-controlled
transfer circuit that allows
the PSC-12 to switch the
system power to stand-by
batteries during loss or
reduction of the AC
power.
The PSC-12 incorporates
a 18A circuit breaker on
the battery input. It
provides connection to a
tamper switch and
terminal tie points for
system signals.
The PSC-12 communi-
cates directly to the PMI/
PMI-2/PMI-3 (XLS),
FCM2041-U2 (Desigo
Fire Safety Modular),
FCM2041-U3 (Cerberus
PRO Modular) to report fault conditions and allows the PMI/PMI-2/PMI-3 (XLS),
FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO Modular) to
query the status of the power supply. It has 1 common alarm relay, 1 common
trouble relay, and 2 programmable relays.The common alarm and common trouble
relays are defaulted to activate when the degrade ALARM bus or degrade TROUBLE
bus is asserted.
The PSC-12 mounts at the back of the enclosure of the FireFinder-XLS/Desigo Fire
Safety Modular/Cerberus PRO Modular system and occupies one location on the
studs in the backbox or on the optional FireFinder-XLS/Desigo Fire Safety Modular/
Cerberus PRO Modular Mounting Plate, CAB-MP.
Features The PSC-12 features are as follows:
• AC power input 120VAC - 240VAC +/- 10% @ 60Hz / 50Hz
• Off-line Switch Mode Power Converter
• Power Factor Correction
• Built-in Battery Charger
• Total Output power of 12A@24VDC

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Building Technologies Division
P/N 315-033060-192
• Two separate power output terminals: one power limited terminal with 4A
max @ 24VDC capacity and one non-power limited terminal with 12A max
@ 24VDC capacity (total not to exceed 12A)
• Both output terminals have current measurement capability
• Auto resettable current protection circuits for overload and short circuit
• Access to CC-5/CC-2 System bus
• Supplies 6.2VDC @ 2A (power limited) to the system bus
• Supplies 24VDC @ 2A (power limited) to the system bus (subject to a 12A
total current limit)
• Communicates via HNET protocol
• Provides termination for the tamper switch
• One common alarm relay, one common trouble relay and two program-
mable relays with 2A ratings
OPERATION The PSC-12 occupies one network address in the HNET network and has four functional
components: the Controller, the Charger, the Power Supply and the Interface Board.
The Controller determines the activation of the Charger and monitors the status of
the Power Supply (ground fault conditions, loss of network communication, 24VDC
terminal overload and the status of the battery). This information is relayed to the
User Interface, where applicable, and is communicated to the PMI/PMI-2/PMI-3
(XLS), FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO
Modular) for system reporting. The Controller also allows the PMI/PMI-2/PMI-3 (XLS),
FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO Modular) to
query the state of the power supply and its current load and can send a diagnostics
command to the PSC-12. It also provides the control of the relays.
The degrade ALARM bus and degradeTROUBLE bus will override the command that
is sent by the PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular),
FCM2041-U3 (Cerberus PRO Modular) to the Alarm andTrouble relays.
The Power Supply has an Off-line switch mode power converter and power factor
correction circuit to improve conductive RF emission at low frequency. It is designed
to take voltage inputs of 120VAC-240VAC at 60Hz/50Hz and has one resettable
circuit breaker that can also be used as a battery power switch.
The Charger monitors and maintains the battery.This circuitry utilizes three charge
modes, depending upon the state of the batteries: Bulk (Full) Charge State, Trickle
Charge State and Float (maintenance) State. The Charger monitors the batteries and
determines which of the charging modes to activate. It also has the capability to
check the state of the battery through diagnostic testing.
The Interface Board provides diagnostics LEDs, system connections and the terminal
connections on the PSC-12.
Terminal Blocks, The PSC-12 has one reset switch, seven LEDs, three HNET/CAN address switches,
one circuit breaker, four terminal blocks, four 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 PSC-12 operation.
Controls and Indicators

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Building Technologies Division
P/N 315-033060-193
The LEDs located at the top left of the module and are
defined as follows:
POWER - (Green) Normally ON. When illumi-
nated, indicates that the PSC-12 is
powered from the AC mains. When
flashing, indicates that the PSC-12 is
powered from the battery.
MODULE FAIL - (Yellow) Normally OFF. When illumi-
nated indicates that the module micropro-
cessor has failed.
CAN FAIL - (Yellow) Normally OFF. When illumi-
nated, indicates that CAN communica-
tion with the PSC-12 has terminated
(applicable only when PSC-12 resides in
a CAN network).
HNET FAIL - (Yellow) Normally OFF. When illumi-
nated, indicates that the HNET communi-
cation with the PSC-12 has terminated and
the PSC-12 goes to degrade mode
(applicable only when the card resides in
the HNET network).
GND FAULT - (Yellow) Normally OFF. When illumi-
nated, indicates that the PSC-12 has
detected either a negative or positive
ground fault on its outputs.
24V 12A FAIL - (Yellow) Normally OFF. When illumi-
nated, indicates that the 24VDC non-
power limited output has a trouble
condition or the PSC-12 has disconnected
the 24VDC output due to current overload
or short circuit.
24V 4A FAIL - (Yellow) Normally OFF. When illumi-
nated, indicates that the 24VDC power
limited output has a trouble condition or
the PSC-12 has disconnected the 24VDC
power output due to current overload or
short circuit.
Three rotary dial switches located directly below the LEDs are used to set the HNET/
CAN network address of the PSC-12.
The terminal blocks of the PSC-12 are defined as follows (See Figures 2, 3 and 4):
TB1 Terminals 1, 2 and 3 provide connection to the FMT riser.
Terminals 4, 5 and 6 provide an output to the monitor speaker in a
remotely mounted LVM.
Terminals 7, 8 and 9 provide an input from the microphone of a remotely
mounted LVM.
Figure 2
Terminal Blocks, Controls and Indicators
NOTE:
Positive and negative ground fault detected at:
<50K ohms for TB3 terminals 1,2
<60K ohms for TB4 terminals 1,2
<40K ohms for TB1 terminals 10,11
<20K ohms for TB1 terminals 4,5,7,8
<30K ohms for TB1 terminals 1,2

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Building Technologies Division
P/N 315-033060-194
Terminals 10, 11 and 12 provide external CAN network connection. All
others are not used.
TB2 Relay outputs; 1 for Alarm, 1 forTrouble and 2 User-programmable relays
that are set to NOT USED by default.These outputs are rated 2A @ 30VDC/
120VAC (.6 PF).
Under normal system operation, the alarm and trouble relays are
controlled by the PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire
Safety Modular), FCM2041-U3 (Cerberus PRO Modular). However, if the
HNET fails (and the initiating card cannot communicate with the PMI/
PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular),
FCM2041-U3 (Cerberus PRO Modular), the DLC will control the ALARM
and TROUBLE relays.The User programmable relays are activated by the
PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular),
FCM2041-U3 (Cerberus PRO Modular) output logic as programmed by
the Zeus tool. When the system is operating normally, these relays are
controlled by the output logic only. (See Figure 4.)
TB3 24VDC Power Limited Output Terminal.This terminal output is limited to
4A. When it is exceeded, it will shut down, light its associated diagnos-
tics LED and send a fault condition to the PMI/PMI-2/PMI-3 (XLS),
FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO
Modular).
This output is normally connected to the modules and cards located on
the door of the enclosure or to remote CAN network modules. This
output is power limited to NFPA 70 per 760. All wiring must be in
accordance with Article 760 of NEC or local building codes. (See Figure 2.)
Output Voltage: 24VDC +10%, -15%
Output Current: 4A max
TB3-1: (+) terminal
TB3-2: (-) terminal
TB4 24VDC Non-Power Limited OutputTerminal. This terminal is non-power
limited and can supply up to 12A. When the current draw is exceeded, it
shuts down, lights its associated LED and sends a fault condition to the
PMI/PMI-2/PMI-3 (XLS), FCM2041-U2 (Desigo Fire Safety Modular),
FCM2041-U3 (Cerberus PRO Modular).
This output is normally connected to the input terminals of the CC-5.
This output must remain within the enclosure or within 20 feet in rigid
conduit. All wiring must be in accordance with Article 760 of NEC or
local building codes. (See Figure 2.)
Output Voltage: 24VDC +10%, -15%
Output Current: 12A max
TB4-1: (+) terminal
TB4-2: (-) terminal
The total cumulative sum of the 24VDC output (power limited + non-power limited)
must not exceed 12A. Over current draw will initiate a PSC-12 shut down.
The main AC power line must be turned OFF prior to installation.
19 24
18
13
TB2
NO
NO
NO
NO
NC
NC
NC
NC
C
C
C
C
PROGRAMMABLE
COMMON
TROUBLE
RELAY
OUTPUT
ALARM
RELAY
OUTPUT
USER
RELAY 2
OUTPUT
USER
RELAY 1
OUTPUT
Figure 4
TB2 Wiring Diagram
Figure 3
TB1 Wiring Diagram
S = SHIELD TIE POINT.
CONNECT AT ONE
PSC-12 ONLY.
16
12
7
TB1
+
+
–
–
S
S
+–S
+–S
FMT
RISER
LVM
MONITOR
SPEAKER
LVM
MICROPHONE
CAN

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Building Technologies Division
P/N 315-033060-195
P4 Contains a factory installed plug. Do not remove the plug from P4.
This plug must be installed at all times to allow the charger section of the PSC-12 to
properly control the battery charging process.
P5 Connects the HTSW-1 Tamper Switch to the PSC-12 to determine the
position of the panel door. The door position status is then transmitted
to the system bus. (See Figure 2.)
This circuit is intended for 24 hour circuit monitoring and is configured by
the Zeus tool. Refer to HTSW-1 Installation Instructions, P/N 315-033350.
There can be only oneTamper Switch connection per enclosure.
P9 Connects the back-up battery to the PSC-12. Battery size has to be
calculated to ensure that the battery size can support the system load
during battery back-up condition. Refer to the Battery Calculation form to
determine the required battery size of the system.
Always apply AC power first followed by the battery.
P10 Set the jumper on P10 to the ENABLE (left-hand) position to enable
ground fault supervision.
P12 AC input connector from the PTB, P4/P5.
60-pin Connects the PSC-12 to the system. It is a straight- through connection
between the two connectors and provides the 24VDC rated at 2A and
6.2VDC rated at 2A that powers the CC-5/CC-2 modules. It also contains
all the communication signals and system signal bus that is necessary
for the proper operation of the system.
These connectors are power limited. If the PSC-12 is located in a
different row in the enclosure, an optional extended ribbon cable,
Model BCL (P/N 599-633997), must be used.
Output Voltages: 24VDC , 6.2VDC
Max Current : 2A @ 24VDC
2A @ 6.2VDC
PRE-INSTALLATION The PSC-12 installation kit has the following components:
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The following part is optional:
• If the PSC-12 is not located in the same row in the backbox (or on the same
optional CAB-MP) as the CC-5, an extended 60 pin flat ribbon cable, Model
BCL (P/N 599-633997) from Siemens Industry, Inc., is required.

Siemens Industry, Inc.
Building Technologies Division
P/N 315-033060-196
The following components must be set prior installing the module in the enclosure:
Verify that the dedicated circuit breaker for the PSC-12 is turned OFF at the mains.
•Battery Circuit Breaker: Set this circuit breaker to the OFF position.
•Network Address Switch: Set the three-digit HNET network address for
the PSC-12 using the three rotary dial address switches located below the
LEDs on the front panel. (Refer to Figure 2 for the location of the switches.)
The address for the PSC-12 must be the same as the address selected for it
in the Zeus Programming Tool. To set the address, turn the pointers on each
of the three dials to the numbers for the selected address. For example, if
the address is 123, set the pointer for the HUNDREDS dial to “1”, set the
pointer for theTENS dial to “2”, and set the pointer for the ONES dial to “3”.
The range of allowable addresses is from 001 to 251 (leading zeros must be
used).
INSTALLATION
Remove all system power before installation, first battery then AC. (To power up,
connect the AC first, then the battery.)
The PSC-12 mounts on studs in the backbox or on the optional Mounting Plate
(CAB-MP).The Mounting Plate may be located either inside or outside of the enclo-
sure to perform this installation procedure. If the Mounting Plate is located inside 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.
The PSC-12 can occupy any position in the backbox or
on the mounting plate, but it should be installed in the
row and position that is located directly above the PTB
to which it is connected. (Refer to Figures 5 and 7).
When the PSC-12 is mounted correctly on the optional
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.
1. Install four 10-32 screws in the threaded posts at
the mounting position. Screw each of the 10-32
screws into the threaded posts 5-6 turns.
2. Place the PSC-12 over the four screws on the
Mounting Plate and slide it down or towards you to
rest on the four screws. (Refer to Figure 6.) When
the PSC-12 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.
Figure 5
Location Of The PSC-12 On The Optional CAB-MP
TOP
TOP THREADED POSTS
BOTTOM THREADED POSTS
POSITION 1 POSITION 3 POSITION 4
POSITION 2
POSITION 1 POSITION 3 POSITION 4
POSITION 2
CAB-MP

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P/N 315-033060-197
Figure 7
PSC-12 Wiring In The CAB Enclosures
WIRING The PSC-12 has removable terminal blocks and connectors at the top and bottom of
the module. The terminals and connectors at the top of the PSC-12 are power
limited. The terminals and connectors at the bottom of the PSC-12 are non-power
limited. (Refer to Figure 7.)
Use a separate or dedicated circuit breaker and run the earth ground from a suitable
source to the PSC-12. Check local requirements.
Conduit is not an acceptable Earth Ground Conductor.
Figure 6
Mounting The PSC-12 On The Optional CAB-MP
TOP
SLIDE DOWN UNTIL
FLUSH ON TOP,
RIGHT, AND BOTTOM
CAB-MP PSC-12

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Building Technologies Division
P/N 315-033060-198
Wire in accordance with local codes and Article 760 of the NEC, NFPA latest edition.
In compliance with NEC, all power limited fire protective signaling conductors must
be separated a minimum of a 1/4" from all of the following wiring located within a
control panel:
• Electric light
•Power
• Class 1 or non-power limited fire protective signaling conductor
Refer to the CAB2-BB Installation Instructions, P/N 315-033009-1 for wiring require-
ments to comply with NEC codes.
Battery Connections When BTX-1, BTX-2 or BTX-3 batteries are required, connect them to the system
with the Battery Cable Conversion Kit, P/N 545-634222, following the steps listed
below.
1. Using the 12 in. long wire assembly, connect the two batteries together, as
shown in Figure 7. Secure each end of the assembly to the battery with a
10-32 x 3/4” screw and lock nut.
2. Attach the quick disconnects to the positive and negative battery terminals
with the 10-32 x 3/4” screws and lock nuts supplied.
3. Attach the red battery wire to the quick disconnect on the positive terminal
and the black battery wire to the quick disconnect on the negative terminal.
BTX-1, BTX-2 OR BTX-3
BATTERIES
10-32 X 3/4”
SCREWS
(4 PLACES)
12 IN. LONG
WIRE ASSEMBLY
LOCK NUT
(4 PLACES)
QUICK
DISCONNECT
(2 PLACES)
+
+
-
-
Figure 8
Wiring BTX-1/-2/-3 Batteries To The PSC-12

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Building Technologies Division
P/N 315-033060-199
Anti-Interference Capacitor Install the 6.8uF, 100V bipolar Anti-Interference Capacitor as shown in Figure 9. It has
to be connected between System Ground and Earth Ground.
PSC-12
PSX-12
P5
111
+_
2
6
12
7
12
34
TB1
TB3
P4
P10
*
*6.8uF, 100V BIPOLAR
CAPACITOR
P/N A5Q00038368
Figure 9
Wiring the Anti-Interference Capacitor
Power Supply Load and Battery Calculations
The PSC-12 power supply load and battery size calculations are performed by the
Zeus tool based on the equipment in the physical view. Once all of the equipment is
inserted into the physical view for each enclosure and a successful compile is
performed, the results of the calculations are shown in the report view.
From the Tools menu, select Report Generation and then select System Power &
Battery Calculation Report.The report contains power supply loading and battery size
results for each enclosure.This report can be printed for a permanent record.

Siemens Industry, Inc.
Building Technologies Division
P/N 315-033060-1910
Battery Power Make sure that the battery circuit breaker is in the OFF position.
Use either 14 or 12 AWG for battery connection.
Battery backup is required for compliance to UL864. The PSC-12 can charge a battery
up to 100 amp hours. (15 amp hours is the minimum size for the PSC-12.)
These battery models are UL listed for use with the FireFinder-XLS/Desigo Fire Safety
Modular/Cerberus PRO Modular system:
• BP-61—24V, 15 AH
• BTX-1—a set of 12V, 31 AH
• BTX-2—a set of 12V, 75 AH
• BTX-3—a set of 12V, 100AH
Select the battery that meets or exceeds the final calculated battery amp hour rating.
Use an external battery box, SIEMENS Model CAB-BATT, P/N 500-633917, with the
BTX-2 and BTX-3 models.
Battery System Electrical Rating:
Input Voltage: 24VDC +10%, -15%
Input Current: 15A max.
Minimum Battery size: 15AH
Maximum Battery size : 100AH
Battery Max Charge Current: 5A (full charge mode)
ELECTRICAL RATINGS
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Siemens Industry, Inc.
Building Technologies Division
P/N 315-033060-1911
Cyber security disclaimer
Siemens products and solutions provide security functions to ensure the secure operation of
building comfort, fire safety, security management and physical security systems. The security
functions on these products and solutions are important components of a comprehensive security
concept.
It is, however, necessary to implement and maintain a comprehensive, state-of-the-art security
concept that is customized to individual security needs. Such a security concept may result in
additional site-specific preventive action to ensure that the building comfort, fire safety, security
management or physical security system for your site are operated in a secure manner. These
measures may include, but are not limited to, separating networks, physically protecting system
components, user awareness programs, defense in depth, etc.
For additional information on building technology security and our offerings, contact your Siemens
sales or project department. We strongly recommend customers to follow our security advisories,
which provide information on the latest security threats, patches and other mitigation measures.
http://www.siemens.com/cert/en/cert-security-advisories.htm

Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
Siemens Canada, Ltd.
1577 North Service Road East
Oakville, Ontario
L6H 0H6 Canada
P/N 315-033060-19Siemens Gebäudesicherheit
GmbH & Co. oHG
D-80930 München Document ID A6V10239105