Summary of Changes
Abbreviations
This manual explains how PowerFlex® 7000 drives with Safe Torque Off option
can be used in Safety Integrity Level (SIL) CL3, Performance Level [PLe], or
Category 3 (Cat. 3) applications. It describes the safety requirements, including
PFD and PFH values and application verification information, and provides
information on installing, configuring, and preventative maintenance of the
Safe Torque Off option.
Use this manual if you are responsible for designing, installing, configuring, or
troubleshooting safety applications that use the PowerFlex 7000 drive with
Safe Torque Off option.
We recommend that you have a basic understanding of the electrical circuitry
and familiarity with these products. You must also be trained and experienced
in the creation, operation, and maintenance of safety systems.
This manual contains new and updated information as indicated in the
following table.
Topic
Updated Firmware revision to 11.xxx
Added PowerFlex 7000A User Manual to Additional Resources table
Updated OIBBS part number to PN-504125
Updated Safety Industrial Relay to PN-35744
Table 1 - Abbreviation and Descriptions
Abbreviation
DC
avg
DIC
DPM
ForGe
MTTF
d
OIB2
OIBBS
PFD
PFH
PSD
PWM
SCR
SGCT
Rockwell Automation Publication 7000-UM203C-EN-P - September 2018
Page
6
6
27, 39
26, 39
Description
Diagnostic Coverage (Average)
Drive Input Contactor
Drive Processor Module
Fourth Generation Control
Mean Time to Dangerous Failure
Optical Interface Board (Rev. 2)
Optical Interface Base Board Safety
Probability of Failure on Demand
Probability of a Dangerous Failure occurring per Hour
Power Structure Diagnostic
Pulse Width Modulation
Silicon Controlled Rectifier
Symmetrical Gate Commutated Thyristor
Preface
5
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