Manual

Rockwell Automation Publication 750-UM003B-EN-P - July 2013 5
Preface
The PowerFlex® 750-Series ATEX option module and the 11-Series I/O option
module for PowerFlex 750-Series AC Drives are safety system components of the
equipment and protective systems intended for use in potentially explosive
atmospheres (ATEX). Perform a risk assessment and safety analysis of the
operating atmosphere and the ATEX system components (PowerFlex 750-Series
drive, motor, ATEX option module, and 11-Series I/O option module) before
you begin this ATEX installation. See Installation and Wiring on page 13
.
What Is the PowerFlex
750-Series ATEX Option
Module?
The ATEX option module with the 11-Series I/O option module enables a
PowerFlex 750-Series drive to be used in ATEX installations. The ATEX option
module helps to eliminate the risk of explosion due to an over-temperature
condition in an ATEX approved motor. In an ATEX installation, the motor is
installed in a potentially explosive atmosphere, while the drive is installed outside
of the potentially explosive atmosphere. See Figure 1 on page 9
.
Catalog Numbers for ATEX
and 11-Series I/O Option
Modules
This table lists the catalog numbers for the ATEX option module and the
compatible 11-Series I/O option modules.
Catalog Numbers for Spare
Terminal Plugs
This table contains the catalog numbers for the 11-Series I/O option module
spare terminal plug kits.
IMPORTANT
Read and understand this user manual before you begin to design and install
your ATEX system.
WARNING: Risk of Explosion.
Do not install the PowerFlex 750-Series drive in a potentially explosive
atmosphere.
A drive installed in a potentially explosive atmosphere can cause an explosion.
ATEX Option Module Cat. No. 11-Series I/O Option Module Cat.
No.
Description
20-750-ATEX
20-750-1132D-2R 115V AC digital input
2 relay outputs, digital
20-750-1133C-1R2T 24V DC digital input
2 transistor, 1 relay outputs, digital
20-750-1132C-2R 24V DC digital input
2 relay outputs, digital
Cat. No. Spare Terminal Plug Kit
SK-R1-SCRWTB-EIO Screw-down terminal plugs spare kit (set of three)
SK-R1-SPRGTB-EIO Spring-clamp terminal plugs spare kit (set of three)