Document conventions
A particular convention may not be used in this manual.
• Abbreviations and acronyms are spelled out in the glossary. The glossary also
contains definitions of important terms.
• Parameter names are shown in italics.
The function can be enabled and disabled with the Operation setting.
• Parameter values are indicated with quotation marks.
The corresponding parameter values are "On" and "Off".
• Input/output messages and monitored data names are shown in Courier font.
When the function starts, the START output is set to TRUE.
The application manual contains an overview of Relay Retrofit Program for REX 521
and the application description. The manual describes how the program deliverables
can be used in the relay retrofit application. The manual also provides information on
the retrofit process and the recommendations for the supported relay types.
The configuration migration support guidelines provided in the application manual
show the steps composing the process of migrating the existing REX 521 relay
configuration and parameters to the replacement relay.

The installation manual contains instructions on how to install the mounting assembly
with pre-wired terminals. The manual provides procedures for mechanical and electrical installation.
The chapters are organized in chronological order in which REX521RRP should be installed.
Cutting tool safety guide contains safety recommendations to the user.
Cutting tool operating guide illustrates how the cutting tool is prepared for operation.
The guide contains instructions on how to operate the tool during relay retrofit.
Relay Retrofit Program for REX 521 Product Guide 1MRS758962
Relay Retrofit Program for REX 521 Installation Manual 1MRS758961
Relay Retrofit Program for REX 521 Application Manual 1MRS758960
Relay Retrofit Program for REX 521 Cutting Tool Safety Guide 1MRS758975
Relay Retrofit Program for REX 521 Cutting Tool Operating Guide 1MRS758976

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