Siemens PSX-12C Installation Instructions Manual
A24205-A334-B818
P/N 315-035840-1
12 Amp Power Supply Extender (S24235-B120-A2)
Installation I nstructions
Model PSX-12C
Figure 1
PSX-12C 12 Amp Power Supply Extender
INTRODUCTION The SIEMENS Model PSX-12C is a high current power supply extender. The power
supply extender works in conjunction with the PSC-12C power supply to provide an
additional 12A of
regulated 24VDC for
internal or external
system use.
Up to three PSX-12C
modules may be
connected to one
PSC-12C power
supply and one set
of batteries. The
PSX-12C has a
microprocessorcontrolled transfer
circuit that allows it
to switch the system
power to stand-by
batteries during loss
or reduction of the
AC power.
The PSX-12C
incorporates a 18A
circuit breaker on the
battery input.
The PSX-12C communicates directly to the PMI-S to report fault conditions and
allows the PMI-S to query the status of the power supply extender.
The PSX-12C mounts at the back of the enclosure of the system and occupies one
location on the Mounting Plate.
Features The PSX-12C features are as follows:
• Universal AC power input 120VAC-240VAC @ 60Hz / 50Hz
• Off-line Switch Mode Power Converter
• Power Factor Correction
• Total Output power of 12A@24VDC
s
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P/N 315-035840-1
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• 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
• Communicates via CAN protocol
OPERATION The PSX-12C occupies one network address in the CAN network and has three func-
tional components: the Controller, the Power Supply Extender and the Interface Board.
The Controller monitors the status of the Power Supply Extender (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-S for system reporting. The Controller also allows the PMI-S to query the state of
the power supply extender and its current load and can send a diagnostics command
to the PSX-12C.
The Power Supply Extender 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 50Hz/60Hz and has one
resettable circuit breaker that can also be used as a battery power switch.
The Interface Board provides diagnostics LEDs, system connections and the terminal
connections on the PSX-12C.
Terminal Blocks, The PSX-12C has one reset switch, six LEDs, one address switch, one circuit breaker,
two terminal blocks, two terminal connections and two 60 pin flat ribbon connections
as shown in Figure 2. The ribbon cable connectors are used to connect the PSX-12C
with a PSC-12C, additional PSX-12-Cs or a Card Cage (CC-2/CC-5).
A reset switch is located on the top of the front panel. Pushing the reset switch reinitializes the PSX-12C operation.
The LEDs located at the top left of the module and are defined as follows:
POWER - (Green) Normally ON. When illuminated, indicates
that the PSX-12C is powered from the AC
mains. When flashing, indicates that the
PSX-12C is powered from the battery.
MODULE FAIL - (Yellow) Normally OFF. When illuminated indicates
that the module microprocessor has failed.
CAN FAIL - (Yellow) Normally OFF. When illuminated, indi-
cates that CAN communication with the
PSX-12C has terminated.
HNET FAIL - (Yellow) Normally OFF. Not used for E100
applications
Controls and Indicators
A24205-A334-B818
P/N 315-035840-1
3
24V 12A FAIL -(Yellow) Normally OFF. When illuminated, indicates
that the 24VDC non-power limited output
has a trouble condition or the PSX-12C
has disconnected the 24VDC output due
to current overload or short circuit.
24V 4A FAIL -(Yellow) Normally OFF. When illuminated, indi-
cates that the 24VDC power limited
output has a trouble condition or the
PSX-12C has disconnected the 24VDC
power output due to current overload or
short circuit.
The terminal blocks of the PSX-12C are defined as follows (refer to
Figure 2):
TB3 24VDC Power Limited Output Terminal. This terminal
output is limited to 4A. When it is exceeded, it will shut
down, light its associated diagnostics LED and send a
fault condition to the PMI-S
.
This output is normally connected to the modules and
cards located on the door of the enclosure or to the
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 Output Terminal. 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-S.
This output is normally connected to the input terminals
of the CC-5. 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 PSX-12C shut down.
The main AC power line must be turned OFF prior to installation.
Figure 2
Terminal Blocks, Controls
and Indicators
+ + +
1
1
+
+
+
_
_
_
2
2
L
N
GND
P9
P12
TB3
TB4
POWER LIMITED OUTPUT
(24VDC @ 4A)
AC
CONNECTION
(INPUT)
NON- POWER
LIMITED OUTPUT
(
24VDC @ 12A Max.)
BATTERY
CONNECTION
TO PSC-12C,
PSX-12C
OR CC-5/CC-2
TO PSC-12C,
PSX-12C
OR CC-5/CC-2
BATTERY
CIRCUIT
BREAKER
OFF
O
—
ON
A24205-A334-B818
P/N 315-035840-1
4
P9 Connects the back-up battery to the PSX-12C.
Always apply AC power first followed by the battery.
P12 AC input connector
60-pin Connects the PSX-12C to the system. It is a straight- through connection
between the two connectors. It contains the communication signals and
system signal bus that is necessary for the proper operation of the
system.
These connectors are power limited. If the PSX-12C is located in a
different row in the enclosure, an optional extended ribbon cable,
SIEMENS Model FCL (C24200-K28-B6), must be used.
PRE-INSTALLATION The PSX-12C installation kit has the following components:
The following part is optional:
• If the PSX-12C is not located on the same CAB-MP as the PSC-12C, PSX-12C
and/or CC-5/CC-2 it is connected to, an extended 60 pin flat ribbon cable,
SIEMENS Model FCL (C24200-K28-B6)), is required.
The following components must be set prior installing the module in the enclosure:
Verify that the dedicated circuit breaker for the PSX-12-C is turned OFF at the mains.
• Battery Circuit Breaker: Set this circuit breaker to the OFF position.
• Network Address Switch: Set the three-digit CAN network address for the
PSX-12C using the three-position switch located near the bottom of the
front panel. (Refer to Figure 2 for the location of the switch.) The address for
the PSX-12C must be the same as the address selected for it in the Zeus
Programming Tool. To increment each digit of the address, press the “+”
button above the desired digit; to decrement each digit, press the “-” button
below the desired digit. The range of allowable addresses is from 001 to
251 (leading zeros must be used).
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