A new safety option card provides Safe Torque Off functionality via the built-in EtherNet/IP port for the PowerFlex® 755, PowerFlex 755TL, PowerFlex 755TR and PowerFlex 755TM drives.

The ability to integrate the safety functions over EtherNet/IP provides the opportunity to reduce hardware and installation costs while improving productivity. The integration of the safety and standard control systems provides operators and maintenance personnel with visibility to all machine events – including safety events. This enables a quick response that allows the machine to return to full production faster. The Safe Torque Off option module has a SIL3, PLe, CAT 3 rating.

For flexibility and simplified machine design changes, the option module can be used for both hardwired and networked Safe Torque Off applications.

Features and Benefits• Designed for the PowerFlex 755 and PowerFlex 755T drives• Hardwired or networked solution• Provides networked Safe Torque Off over EtherNet/IP• Removes rotational power to the motor without removing power from the drive• Easily integrates with GuardLogix® controllers• Rated SIL3, PLe, CAT 3• Requires Studio 5000® version 30 and higher

Networked Safe Torque Off Option ModuleFor PowerFlex® 755 and PowerFlex 755T Drives

PoE Status

DC-

PoE Input Pwr48/54VDC, 2.5A

DC+

PoE

1

3

5

7

10

12

14

16

9

1613

1

2

1

2

12

9

11

13

15

2

4

6

8

CAUTIONHOT surfaces can cause severe burns

54 6

8

2 3

9

1

7

0

STS

ENET

LINK

AUTOAt ReferenceF

00

6 0 . 00 Hz

ESC

PowerFlex 755480V 4.2A20G . . . B4P2

REF TEXTPAR#

755

1734-AENTR

ModuleStatusNetworkActivityNetworkStatus

Link 1ActivityStatus

Link 2ActivityStatus

Point BusStatus

SystemPower

FieldPower

SAFETYRUN

SAFETYTASK

BAT OK

Logix55LSP

PROGRUN REM

RUN I/O

RS232FORCE

BAT OK

Logix5562S

GuardLogix® Integrated Safety System Controller

Stratix 5700™ Industrial Ethernet Switch

PowerFlex 755 with Networked Safe Torque O�

PointGuard I/O™

Publication 755-PP002A-EN-P – March 2017 Copyright © 2017 Rockwell Automation, Inc. All Rights Reserved.

PowerFLex, Studio 5000, GuardLogix, Stratix 5700, PointGuard I/O, Allen-Bradley, and Listen. Think. Solve. are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.

Networked Safety Helps Streamline Machine DesignBenefit from the ability to integrate safety into your control system. Networked Safe Torque Off provides th e same benefits as hardwired Safe Torque Off – plus the ability to simplify your machine design and minimize equipment redundancies.

• A single GuardLogix controller can be used for both safety and standard control

• Reduce the need to write and coordinate multiple programs on different controllers, to simplify application programming and reduce training and support costs

• Fewer components mean smaller panel enclosures, saving money on control cabinets and floor space

• The integration of the safety and standard control systems provides operators and maintenance personnel with visibility to all machine events – including safety events. This enables a quick response that allows the machine to return to full production

• Safety and non-safety functions share the same EtherNet/IP network

• More safety tags are seen in controller– Safe off condition– Safety fault condition– Connection status– Reset Requirement

Networked Safe Torque OffSetup example for SIL3/Ple Cat. 3