7
EN
Foreword and safety instructions
General remarks
The service instructions can be found in the TechGuide at www.fronius.com\techguide
Each chapter in the service instructions deals with one complete topic. Use each
chapter as a self-contained information source. A short description of each chapter
follows:
Safety The following safety instructions apply to all activities described in these service instruc-
tions:
WARNING! Work performed incorrectly can cause serious injury and damage.
All activities described in the service instructions must only be carried out by
Fronius-trained personnel. Take note of the „Safety rules“ chapter in the power
source operating instructions.
WARNING! An electric shock can be fatal. If the machine needs to be switched
on briefly for testing while the housing is open,
- Do not touch the parts inside the housing
- Only touch using suitable measuring or test probes
CAUTION! Inadequate PE conductor connections can cause serious injury
and damage. The housing screws provide a suitable PE conductor connection
for earthing (grounding) the housing and must NOT be replaced by any other
screws which do not provide a reliable PE conductor connection.
WARNING! An electric shock can be fatal. Before opening up the machine
- Move the mains switch to the “O” position
- Unplug machine from the mains
- Put up an easy-to-understand warning sign to stop anybody inadvertently
switching it back on again
- Using a suitable measuring instrument, check to make sure that electrical-
ly charged components (e.g. capacitors) have been discharged
Fronius Techni-
cal Support
Center (TSC)
If you have any questions about fault isolation, there is a team of experts on hand.
E-mail: techsupport@fronius.com
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