Siemens 7SR45 - Revision History

Revision History
Software Revision History
2020/08 2438H80001R2f-1a
•
Protection function 51-1 setting range change to 0.1 ⋅ I
rated
to
2.0 ⋅ I
rated
•
User-Programmable LED feature added
2020/05 2438H80001R2e-1b Software maintenance
2019/12 2438H80001R2e-1a Thermal overload protection function (49) added
2019/05 2438H80001R2c-1b Software maintenance to suit customer requirements
2018/11 2438H80001R2c-1a Supervision function (81HBL2) added
2018/06 2438H80001R1f-1a Third Release
2018/06 2438H80001R2b-1b Third Release
2018/04 2438H80001R2a-1a Second Release
2017/08 2438H80001R1e-1a Software maintenance to suit customer requirements
2017/01 2438H80001R1d-1a
•
Protection function 50, 50N, 50G setting range change to
0.2 ⋅ I
rated
to 20 ⋅ I
rated
in step of 0.1 ⋅ I
rated
•
Protection function 50, 50N, 50G reset ratio changed to 90 %
for setting below 1 ⋅ I
rated
and 94 % for setting above 1 ⋅ I
rated
2016/10 2438H80001R1c-1a Software maintenance to suit customer requirements
2016/09 2438H80001R1b-1a
•
Faster response times on 1 phase (t + 100 ms max) in 0.2 to
0.3 ranges.
•
IRF functionality.
2015/08 2438H80001R1a-1a First Release
Hardware Revision History
2018/06
7SR450/FF Third Release (with reduced front cover and housing height)
2018/04 7SR450/EE Second Release (with Aux. Power supply, remote flag and local
flag, RS 485, additional AC/DC BIs and BOs)
2017/02 7SR450/DD Hardware maintenance
2016/09 7SR450/CC Circuit changes to improve signal conditioning
2015/08 7SR450/BB First Release
A.1
Appendix
A.1 Revision History
100 Reyrolle, Operating, Manual
C53000-B7040-C101-1, Edition 08.2020