Foreword And Safety Instructions; Safety; Protective Measures Against Esd; Fronius Technical Support - Fronius Symo 3.0-3-S Serviceanleitung

Foreword and safety instructions

Safety

Work performed incorrectly can cause serious injury and damage.
All activities described in the service manual must only be carried out by a trained Fro-
nius service technician. Please note the information in the "Safety Rules" chapter in your
inverter operating instructions.
An electric shock can be fatal.
Before opening the device
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An electric shock can be fatal.
If the device is briefly switched on with an open housing for test purposes,
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An inadequate grounding conductor connection can cause serious injuries to per-
sons and damage to (or loss of) property.
The housing screws provide an adequate grounding conductor connection for the
housing ground and should not under any circumstances be replaced by other screws
that do not provide a proper grounding conductor connection.
Protective Mea- Danger of damage to electrical components from electrical discharge. Suitable measures
sures against should be taken to protect against ESD when replacing and installing components.
ESD
Fronius Technical If you have any questions about the failure analysis, please contact your national Fronius
Support Technical Support directly
Ordering spare If you need spare parts, or you have any questions about the failure analysis, your natio-
parts nal Fronius Technical Support team is at your disposal.

General

The service manual can be found in the DownloadCenter under "downloadcenter.fro-
nius.com."
WARNING!
WARNING!
Set power switch to - O -
Disconnect the device from the grid
Attach a clear warning sign advising others not to switch the power source back on
Use a suitable measuring tool to ensure that electrically charged components (e.g.
capacitors) are discharged.
WARNING!
do not touch the components inside the housing
touch them only with suitable measuring or test probes
WARNING!
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