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Rockwell Automation 20-750-ATEX PowerFlex 750-Series ATEX Option Module User Manual

Page 19

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Rockwell Automation Publication 750-UM003B-EN-P - July 2013

19

Installation and Wiring

Chapter 2

ATEX Option Module and 11-Series I/O Option Module without a
Safety Option Module

Follow these steps to configure the ATEX option module with 11-Series I/O
option module for use without a safe torque-off (catalog number 20-750-S) or
safe speed monitor (catalog number 20-750-S1) option module.

1. Set switch S1-1 to ON.
2. Set switch S1-2 for Thermostat mode or PTC mode.

3. Install the safety enable jumper on the main control board.

Switch

Setting

Description

S1-1

ON

Configures the ATEX option module for use without an additional safety
option module.

S1-2

OFF

Configures the ATEX option module for Thermostat mode,
over-temperature monitoring.
Can be used with PTC-type thermal sensors if short-circuit monitoring is
not needed.

ON

Configures the ATEX option module for PTC mode.
Provides both over-temperature and short-circuit monitoring.

S1-1

S1-2

S1-2

PowerFlex 753

PowerFlex 755

IMPORTANT

The default setting of the safety
enable jumper = installed.

For this step, verify that the safety
enable jumper is installed.