Fronius MTG 2100 S, Service Manual

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Foreword and safety instructions
Safety The following safety instructions apply to all activities described in this service manual:
WARNING!
Work that is carried out incorrectly can cause serious injury and damage.
All activities described in the service manual must only be carried out by Fronius-trained
service technicians. Read the "Safety rules" chapter in the power source operating
instructions.
WARNING!
An electric shock can be fatal.
Before opening the device
▶
Turn the mains switch to the "O" position
▶
Unplug the machine from the mains
▶
Prevent it from being switched on again
▶
Using a suitable measuring instrument, check to make sure that electrically charged
components (e.g. capacitors) have discharged
WARNING!
An electric shock can be fatal.
If the device needs to be switched on briefly for testing while the housing is open:
▶
Do not touch any parts inside the housing
▶
Only touch using suitable measuring or test probes
WARNING!
An inadequate ground conductor connection can cause serious injury or damage.
The housing screws provide a suitable ground conductor connection for earthing the
housing and must NOT be replaced by any other screws that do not provide a reliable
ground conductor connection.
Fronius Technical
Support National
(TSN) If you have any questions about error analysis, your Fronius Technical Support National
(TSN) sales team will be able to help.
mailto: welding.techsupport@fronius.com
General The service manual can be obtained from the DownloadCenter at "downloadcen-
ter.fronius.com".
Each chapter in the service manual deals with one complete topic. Use each chapter as
a self-contained source of information. A short description of each chapter follows.
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EN