Siemens TX-I/O Manuale utente
Installation Instructions
Document No. 553-142
June 4, 2010
TX-I/O Power Supply and Bus Modules
Item Number 553-142, Rev. CA Page 1 of 4
Product Description
The TX-I/O™ product range includes Power Supply,
Bus Connection, and Island Bus Expansion
modules.
Power Supply Module
The TX-I/O Power Supply bridges communication
and power from one DIN rail to another and
generates 28.8 W (1.2A at 24 Vdc) to power TX-I/O
modules and peripheral devices.
24V24V
1
23
4
5
6
CS CD
24V
T
CS CD
TXIO0088R1
Figure 1. Power Supply Module.
Bus Connection Module
The Bus Connection Module bridges communication
and power from one DIN rail to another. It provides
the bus signal, module supply voltage, and field
device supply voltage to TX-I/O modules on an
additional DIN.
1
2 3
4
5
6
CS CD
T
CS CD
TXIO0087R1
V
V
Figure 2. Bus Connection Module.
Island Bus Expansion Module
The TX-I/O Island Bus Expansion (IBE) module
increases the distance between the primary field
panel enclosure and expansion field panel
enclosures on the island bus. Each IBE supports two
segments of up to 200 ft (50 m) each.
TXIO0086R1
+
BM
COM
_
1
BT
TXA1.IBE
ON
ON
2 3
Figure 3. Island Bus Expansion Module.
Product Numbers
TXS1.12F4 TX-I/O Power Supply
TXS1.EF4 Bus Connection Module
TXA1.IBE Expansion module with RS-485
connection.
Warning/Caution Notation
WARNING
Personal injury or property
damage may occur if you do not
follow a procedure as specified.
CAUTION:
Equipment damage or loss of
data may occur if you do not
follow a procedure as specified.
Required Tools and Materials
Wire stripper/side cutter
Small flat-blade screwdriver
Digital multimeter (DMM)
Expected Installation Time
7 minutes
Document No. 553-142
Installation Instructions
June 4, 2010
Prerequisites
CAUTION:
No power wiring is connected to the field
panel controller or other TX-I/O
components at this time.
CAUTION:
The TX-I/O island bus must be mounted
on a DIN rail (1.38" × 0.3" × 0.04"
(35 mm × 7.5 mm × 1 mm)).
For energy management installations,
NEMA Type 1 or better enclosure with DIN
rails and source of 24 Vac.
For smoke control installations, PX Series
enclosures and service boxes. See the PX
Series Service Box Installation Instructions
(553-131).
TX-I/O™ Power Supply or Bus Connection
Module.
If mounting in an enclosure:
Enclosure is installed.
The power source is installed, as
applicable.
The power is OFF.
All necessary wiring is pulled and terminated
per the layout drawing.
Power and communication wiring is
terminated to the removable plugs supplied
with the devices.
Power Requirements
1. One of the following power sources is pulled to
the enclosure:
120 Vac, 60 Hz and terminated at the 115V
PX Series Service Box.
230 Vac, 50/60 Hz and terminated at the
230V PX Series Service Box.
24 Vac, 50/60 Hz Class 1 power limited from
a third-party transformer and connected to
a terminal block.
2. If powering a TX-I/O expansion panel, power
wiring is run from the transformer in the primary
panel to the expansion panel, if needed.
CAUTION:
For information on extending the TX-I/O
island bus outside the enclosure, see the
APOGEE Wiring Guidelines for Field
Panels and Equipment Controllers
(125-3002).
NOTE: Depending on the module types and point
configurations used, one service box
transformer may have insufficient power for
more than two TX-I/O Power Supplies. More
power may be required if using a Modular
Series with the maximum number of TX-I/O
modules.
General Installation Requirements
CAUTION:
All devices not isolated by a Trunk
Isolator/Extender (TIE) or isolation
transformer must be connected to the
same grounding point.
CAUTION:
Do not connect TX-I/O components to a
floating system neutral. Otherwise,
equipment damage will occur.
System Neutral ( ) must be
continuous throughout the TX-I/O
Bus.
System Neutral must be connected
to building approved earth-ground
() at a single point only at the 24
Vac transformer.
Page 2 of 4 Siemens Industry, Inc.
Document No. 553-142
Installation Instructions
June 4, 2010
Siemens Industry, Inc. Page 3 of 4
Installation 3. Using a flat blade screwdriver, push in each
mounting tab until it clips onto the DIN rail.
WARNING:
Turn OFF AC power at the ON/OFF
switch in the Service Box or
transformer enclosure.
CAUTION:
UL Listings require NEC Class I and
Class II wiring be kept separate from
each other. Use separate conduit and
cable tie bars to separate Class I
Digital Output (DO) wires from all other
Class II wiring.
CAUTION:
The TX-I/O™ island bus must extend
from the male bus connector of the TX-
I/O Power Supply or Bus Connection
Module.
The TX-I/O Power Supply and Bus
Connection Module only supply 24
Vac to I/O modules on the male
bus connector.
I/O modules on the female bus
connector of the TX-I/O Power
Supply or Bus Connection Module
do not receive power and have a
fault condition.
CAUTION:
Only insert or remove the field panel
controller, TX-I/O Power Supply, and
Bus Connection Module when the
power is OFF.
This device includes electrical and
electronic components and must not be
disposed of as domestic waste. Product
recovery and disposal must comply with
all national and local regulations.
4. Align an I/O module with the Power Supply or
Bus Connection Module, and slide the I/O
module down over the TX-I/O island bus
connector.
5. Push in each mounting tab until it clips onto the
DIN rail.
TXIO0064R1
1
2
35
4
Figure 3. Connecting Devices to the TX-I/O Island Bus.
Completing the Installation
CAUTION:
For RS-485 ALN or FLN, terminate
only one end of the shield wire on the
enclosure earth ground.
For a 3-wire system, terminal is
connected to reference wire. Protective
ground terminal may be connected to
earth ground.
For a 2-wire system, terminal is not
connected. Protective ground terminal
must be connected to earth ground.
Basic Steps for Connecting Devices to
the DIN Rail NOTE: Do not connect the power or network
communication cable until instructed to do
so during start-up.
The island bus establishes its own connection when
TX-I/O™ devices are plugged into one another on a
DIN rail. 1. Terminate power wiring to the 24 Vac
removable plug.
1. Slide out the mounting tabs. 2. If necessary, terminate wires to the
communications terminals (CS and CD).
2. Align the channel on the back of the device with
the DIN rail. The installation is now complete.
Document No. 553-142
Installation Instructions
June 4, 2010
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24V
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BCM
24V24V
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24V
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PXC0009WDR1
3-WIRE
COMMUNICATION
TO COMPACT
(IF REQUIRED)
2-WIRE
COMMUNICATION
2-WIRE POWER
WIRING DIAGRAM IF ALL COMPONENTS ARE INSIDE THE SAME ENCLOSURE.
24V~ CS CD
24V~
Figure 5. TX-I/O Power Supply to Bus Connection Module Wiring.
Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as
design improvements are introduced. APOGEE and Insight® are registered trademarks of Siemens Industry, Inc. Other product or company
names mentioned herein may be the trademarks of their respective owners. © 2010 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
U.S.A
Your feedback is important to us. If you have
comments about this document, please send them
to SBT_technical.editor.[email protected].
Document No.
Printed in the USA
Page 4 of 4
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