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01 About This Manual User Manual V1.1-2022-12-20
1.3 Symbol Denition
1.4 Updates
The latest document contains all the updates made in earlier issues.
V1.1 2022-12-20
• Updated information about ET Plus series inverters.
V1.0 2020-05-20
• First Issue
Dierent levels of warning messages in this manual are dened as follows:
DANGER
Indicates a high-level hazard that, if not avoided, will result in death or serious injury.
WARNING
Indicates a medium-level hazard that, if not avoided, could result in death or serious injury.
CAUTION
Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury.
NOTICE
Highlights key information and supplements other text. It may include skills and methods to
solve product-related problems.