Siemens SIMATIC Operating Instructions Manual page 86

Fail-Safe Electronic Modules
8.1 8 /16 F-DI DC24V PROFIsafe Digital Electronic Module
Minimum sensor signal duration
Protection against Overvoltage
Protection of supply voltage L+ from surge in
accordance with IEC 61000-4-5 with external
protection elements only
•
•
Protection of inputs and outputs from surge in
accordance with IEC 61000-4-5 with external
protection elements only
Protection of supply voltage 1L+ from
overvoltages
*: Identification sets are described in the "ET200 pro Distributed I/O System" manual.
**: For requirements for sensors and actuators, see "
86
Symmetrical (L+ to M)
Asymmetrical (L+ to PE, M to PE)
Technical Specifications
"Minimum Duration of Sensor Signals for
See
Proper Detection by F-DI Module"
"Wiring"
+ 1 kV; 1.2/50 μs
+ 2 kV; 1.2/50 μs
Not required since cable length is < 30 m
Internal fuse tripped
Requirements for Sensors and Actuators
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02
table in
"