Preface and general information
8250BA0903 1-1
1 Preface and general information
1.1 About these Operating Instructions ...
• The present Operating Instructions are used for operations
concerning safety measures on and with the 825X brake
units. They contain safety information which must be
observed.
• All persons who work on and with 825X brake units must
have the Operating Instructions available and observe all
relevant notes and instructions.
• The Operating Instructions must always be in a complete
and perfectly readable state.
1.1.1 Terminology used
Brake unit
The”8251 brakemodule”, the ”8252 brake module” or the ”8253
brake chopper with brake resistor” are called ”brake unit” in the
following text.
Controller
In the following text, the term ”controller” is used for ”82XX
frequency inverter”.
Drive system
For drive systems with 825X brake units and other Lenze drive
components, the term ”drive system” is used in the following
text.
1.1.2 What is new?
Material No. Edition Important Contents
393658
12/1996 1st edition
01/1997 revised • Technical data
• Chapter 4.3
474423 09/2003 replaces
393658
• Change of company name
• Chapter 8