Fail-Safe Electronic Modules
8.3 F -Switch PROFIsafe Digital Electronic Module
ET 200pro Distributed I/O System - Fail-Safe Modules
136
Operating Instructions, 05/2007, A5E00394073-02
8.3.11
Technical Specifications for the F-Switch PROFIsafe Electronic Module
Overview
Technical Specifications
Dimensions and Weight
Dimensions W x H x D (mm)
45 x 130 x 65.2 (including rack)
Weight
Approx. 170 g
Module-Specific Specifications
Number of inputs
•
2-channel
Max. 2
Number of outputs (P/P switching)
Max. 3
Assigned address area
•
I/O area for inputs
7 bytes
•
I/O area for outputs
5 bytes
Cable length
•
Unshielded
< 30 m
•
Shielded
< 30 m
Maximum achievable safety class
2-channel
•
In accordance with IEC 61508
SIL3
•
In accordance with EN 954
Category 4
Fail-safe performance characteristics
SIL2 / SIL3
•
Low demand mode (average probability of
failure on demand)
< 1.00 E-05
•
High demand/continuous mode (probability of
a dangerous failure per hour)
< 1.00 E-09
Voltages, Currents, Potentials
Rated supply voltage L+
24 V DC
•
Permissible range
20.4 V to 28.8 V
•
Power loss ride-through of L+
None
•
Power loss ride-through of internal P5
5 ms
•
Reverse polarity protection
Yes: electronics, No: load supply (reverse polarity
causes fuse to trip (12.5 A quick-response) in the
head module)
Electrical isolation
•
Shield and ET 200pro bus connection
Yes
•
ET 200pro bus connection and I/O
Yes
•
Shield and I/O (DIs, DOs)
Yes
•
Between DIs and DOs
Yes
Permissible potential difference between:
•
Shield and ET 200pro bus connection
75 V DC/60 V AC
•
ET 200pro bus connection and I/O
75 V DC/60 V AC
•
Shield and I/O (DIs, DOs)
75 V DC/60 V AC
•
Between DIs and DOs
75 V DC/60 V AC