Rockwell Automation 1798-OB8E User Manual

Installation Instructions

FlexArmor 24V dc Sourcing
Output Modules

Catalog Number 1798-OB4E & 1798-OB8E

42639

The FlexArmor I/O modules (Cat. No. 1798-OB4E & 1798-OB8E)
mount in a FlexArmor Baseplate. Use compatible sealed cordsets to
connect all field side wiring.

The 1798-OB4E module provides connections for up to 4 outputs.
The 1798-OB8E module provides connections for up to 8 outputs.
Both of these modules have four 12 mm connectors. Outputs are 24V
dc configured for sinking devices. A diagnostic feature for both
modules includes output short-circuit detection.

Package Contents

Your package contains:

• 1 FlexArmor -OB4E or -OB8E module

• installation instructions

(Note: Baseplates and other components are ordered and shipped
separately.)

Publication 1798-IN002A-EN-P - January 2001

2 FlexArmor 24V dc Sourcing Output Modules

European Union Directive Compliance

If this product has the CE mark it is approved for installation within
the European Union and EEA regions. It has been designed and
tested to meet the following directives.

EMC Directive

This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards, in
whole or in part, documented in a technical construction file:

• EN 50081-2 EMC - Generic Emission Standard, Part 2 -

Industrial Environment

• EN 50082-2 EMC - Generic Immunity Standard, Part 2 -

Industrial Environment

This product is intended for use in an industrial environment.

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low
Voltage, by applying the safety requirements of EN 61131-2
Programmable Controllers, Part 2 - Equipment Requirements and
Tests.

For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:

• Industrial Automation Wiring and Grounding Guidelines For

Noise Immunity, publication 1770-4.1

• Automation Systems Catalog, publication B113

Related Publications

For software configuration information, refer to the 1798-ADN User
Manual, publication 1798-UM001A-US-P and the 1798-APB User
Manual, publication 1798-UM002A-EN-P.

Publication 1798-IN002A-EN-P - January 2001

FlexArmor 24V dc Sourcing Output Modules 3

Install Your FlexArmor I/O Module

To install the module:

• Install the modules into the Baseplate

• Connect the cordsets

• Communicate with the module

These steps are explained in more detail in the following
procedures.

For instructions on how to mount the FlexArmor Baseplate,
refer to publication no. 1798-IN003A-EN-P.

Install the Modules into the Baseplate

To install the modules into the Baseplate:

1. Hold the module at an angle and engage the top of the
module in the indention on the rear of the Baseplate.

2. Press the module down flush with the panel until the locking
lever locks.

3. Repeat these steps for each I/O module and each remaining
Baseplate I/O slot.

IMPORTANT

Screw down the module retaining screws to ensure IP67 compliance.

IMPORTANT

I/O modules can be installed in any slot location
to the right of the adapter module. The adapter is
capable of addressing up to eight I/O modules.

• Torque the screws to 0.5-0.7 Nm. (4.43 - 6.2

inch pounds).

• Dust caps must have 4 inch pounds of torque

to maintain IP67 compliance.

Publication 1798-IN002A-EN-P - January 2001

4 FlexArmor 24V dc Sourcing Output Modules

Connect the Cordset to the FlexArmor Module

These modules use 5 pin micro (12mm) style PCB mounted
connectors.

Four micro caps cover the I/O connectors on both your modules.
Remove the caps and connect your cables to the appropriate ports.
Keep the caps in place on any unused connector to maintain the IP67
rating.

Refer to publication no. 889-CP0021A-EN-P for compatible Rockwell
Automation cables and cordsets.

A pinout diagram for the connectors is shown below.

Output Micro-Connector

(View into Socket)
Pin 1 Not Used
Pin 2 Output B (OB8E modules only)
Pin 3 Output Common
Pin 4 Output A
Pin 5 Not Used

42652

ATTENTION

!

Publication 1798-IN002A-EN-P - January 2001

• Make sure all connectors and caps are

securely tightened to properly seal the
connections against leaks and maintain IP67
requirements.

• For maximum noise immunity, input and

output cable return wires must be properly
terminated. When inputs and outputs are
connected in loopback, return wires should
be connected together.

• I/O cable length should be less than 30

meters.