Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
297
Safety protector
10
10.1
Introduction
Chapter contents
The safety protector is used to protect the F-SMs from any overvoltage developing in the
case of a fault/error. Information on safety protectors provided in this chapter:
●
Properties
●
Module view and block diagram
●
Configuration variants
●
Technical data
10.2
Properties, Front View, and Block Diagram
Order number
6ES7195-7KF00-0XA0
Properties
The safety protector protects the fail-safe signal modules against excess fault voltages.
The safety protector does not occupy an address or supply diagnostic messages, and is not
assigned in
STEP 7.
Note
When the safety protector is used, your station achieves the limit values for
surge resistance
specified in the technical data using the overvoltage protection components specified in the
"S7-300 CPU 31xC and CPU 31x: Hardware and Installation
(
grounded reference potential.
If you install your station in a metal cabinet, you can configure the station with ungrounded or
grounded reference potential.
Safety Integrity Level SIL 3/Cat. 4/PLe with safety protector
For applications in Safety Integrity Level SIL3/Cat.4 read the warning in section "Rules for
using the safety protector" in the chapter "Configuration with F-SMs in Safety Mode
(Page 21)".
Содержание Simatic S7-300
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