Operating Instructions

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Installation Instructions

Document No. 553-638

October 18, 2019

PXC Modular Series

Siemens Industry, Inc. Page 1 of 4

Item No. 553-638(GA)

Danger/Warning/Caution Notation

DANGER

Electric shock, death, or severe property

damage may occur if you do not perform a

procedure as specified.

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.

PXC Modular Series Product

Numbers

Product Number

Description

PXC00-E96.A

PXC Modular, BACnet/IP or MS/TP ALN, P1

or MS/TP FLN. PXX-485.3 is a connection

for FLN devices.

PXC00-PE96.A

PXC Modular, Ethernet/IP or RS-485 ALN,

P1 FLN. PXX-485.3 is also required as the

connection to the FLN devices.

PXC100-E96.A

PXC Modular, BACnet/IP or MS/TP ALN, P1

or MS/TP FLN, self-forming TX-I/O Island

Bus. PXX-485.3 is also required as the

connection to the FLN devices.

PXC100-PE96.A

PXC Modular, Ethernet/IP or RS-485 ALN,

P1 FLN, self-forming TX-I/O Island Bus.

PXX-485.3 is also required as the

connection to the FLN devices.

PXX-485.3

Provides FLN support for the PXC Modular.

Includes three RS-485 P1 FLN connections

or one MS/TP FLN connection; maximum of

96 devices supported.

PXA-DIN16KIT

Accessory kit with four 16-inch (406 mm)

DIN rails

For more information, see the TX-I/O Module

Installation Instructions (553-141) and TX-I/O Power

Supply and Bus Modules Installation Instructions (553-

142).

General Installation Requirements

CAUTION

All devices not isolated by an Island Bus

Expansion module (TXA1.IBE) must be

connected to the same grounding point.

CAUTION

TX-I/O components require a system

neutral with single point earth ground. Do

not connect these components to a

floating system neutral.

Service Box Earth Grounding of

System Neutral

System Neutral (⊥) must be continuous throughout the

TX-I/O bus.

• System Neutral is required to be earth-

grounded at a single point only.

• For a PXA Service Box: Connect the green wire

to the earth ground stud under the wire cover.

• For migrating with an MEC Service Box: The

earth ground is installed in the primary field

panel by a single external jumper between the

service box E terminal and N terminal.

• For a Third-party Transformer connect the

transformer secondary neutral to the building-

approved earth ground at the terminal block.

• When a separate 24Vac source is installed in

any secondary field panel isolate power using a

TXA1.IBE communication module in primary

and each secondary field panel.

Summary of content (4 pages)

PAGE 1
Installation Instructions Document No. 553-638 October 18, 2019 PXC Modular Series Danger/Warning/Caution Notation DANGER Electric shock, death, or severe property damage may occur if you do not perform a procedure as specified. For more information, see the TX-I/O Module Installation Instructions (553-141) and TX-I/O Power Supply and Bus Modules Installation Instructions (553142). General Installation Requirements CAUTION WARNING All devices not isolated by an Island Bus Expansion module (TXA1.
PAGE 2
Document No. 553-638 Installation Instructions October 18, 2019 Energy Management Applications For energy management only (low voltage Class 2), the PXC Modular may be mounted on a flat surface. For modems used with smoke control applications: • The UL864 Listed surge protector is required. • Devices connected between the USB port and the UL Listed surge protector must be located within the same room.
PAGE 3
Document No. 553-638 Installation Instructions October 18, 2019 Required Tools and Materials • For TX-I/O Modules: − Point wiring is terminated on the TX-I/O Terminal Base. − TX-I/O Module labels have been printed from System Profile. − TX-I/O Modules are either removed from or parked in the terminal bases.
PAGE 4
Document No. 553-638 Installation Instructions October 18, 2019 Class 1 and Class 2 Wiring Separation Installing the PXC Modular 1. If an Expansion Module is used, plug it into the PXC Modular Expansion bus. 2. Install the PXC Modular and optional Expansion Module on the DIN rail. 3. Connect one of the following devices to the TX-I/O bus connector on the PXC Modular: CAUTION UL Listings require that NEC Class 1 and Class 2 wiring be kept separate from each other.