Digital Electronics Module 1 F-RO DC24V/5A AC24..230V/5A
2.7 Response Times of EM 1 F-RO DC24V/5A AC24..230V/5A
Product Information for the Distributed I/O System ET 200S, Fail-Safe Systems Manual
2-12 Product information, 07/2006, A5E00825271-01
Switching capacity and service life of the contacts
The following table indicates the switching capacity and service life of the contacts. Service
life can be increased beyond the value indicated in the following table by using an external
protective element.
Table 2-4 Switching capacity and service life of the contacts
Resistance load Voltage Current Duty cycle (avg.) contacting element
5.0 A 0.35 million
3.0 A 0.5 million
2.0 A 0.75 million
1.0 A 1.8 million
DC 24 V
0.5 A 4 million
5.0 A 0.1 million
3.0 A 0.15 million
2.0 A 0.2 million
1.0 A 0.4 million
For resistive load
AC 230 V
0.5 A 0.8 million
1.0 A 0.1 million DC 24 V
0.5 A 0.2 million
1.0 A 0.2 million
For inductive load
according to IEC 947-
5-1 DC 13/ AC15
AC 230 V
0.5 A 0.35 million
2.7 2.7 Response Times of EM 1 F-RO DC24V/5A AC24..230V/5A
Maximum response times of EM 1 F-RO DC24V/5A AC24..230V/5A
The maximum response time of EM 1 F-RO DC24V/5A AC24..230V/5A (under error free
circumstances and during the presence of errors) is the sum of:
• The maximum response time of the fail-safe output, used for activating the F-RO-module
(e.g. EM 4F-DO DC24V/2A PROFIsafe; refer to the manual, Appendix D) and
• The switching time or the relay release time of the F-RO-module (refer to the Technical
Specifications, Chapter
2.6
).
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