Fronius TPS 4000 Installation Instructions Manual - Page 10
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An electric shock can be fatal.
Before starting work:
► turn the power source mains switch to the "O" position
► disconnect the power source from the mains
► ensure that the power source remains disconnected from the mains until all work has
► After opening the device, use a suitable measuring instrument to check that electrically
An inadequate ground conductor connection can cause serious injury and damage
to property.
The housing screws provide a suitable ground conductor connection for earthing the hous-
ing.
► The housing screws must NOT be replaced by any other screws that do not provide a
Risk of scalding from hot system components.
Before starting work, allow all hot system components to cool down to room temperature
(+25 °C, +77 °F). For example:
► coolant
► water-cooled system components
► wirefeeder drive motor
Preparations
Removing the blanking cover
Inserting the rubber lead-through
10
WARNING!
been completed
charged components (e.g. capacitors) have been discharged.
WARNING!
reliable ground conductor connection.
CAUTION!
(a)
(7)
Take off the left side panel
1
Press the blanking cover (a) from the
2
inside towards the outside
The blanking cover is no longer nee-
ded
Insert the rubber lead-through (7) into
3
the recess (b)
(b)