Replacing Components; Safety; Opening And Closing The Device - Fronius Symo 3.0-3-S Serviceanleitung

Replacing components

Safety

An electric shock can be fatal.
Before opening the device:
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An electric shock can be fatal.
Danger of residual voltage from capacitors. Wait until the capacitors have discharged.
Discharge takes 6 minutes. Additional information on the discharge time can be found in
the Operating Instructions and in the safety notices on the inverter.
NOTE!
Requirements for electrical installations may be subject to national standards and
regulations, and these must be followed accordingly.
A safety inspection must be carried out after the replacement, modification, mainten-
ance, or repair of a component (see section "Safety Inspection").
Opening and Clo- Opening the Device:
sing the Device
(2)
84
WARNING!
Set the power switch to - O -
Unplug the device from the mains
Attach a clear warning sign advising others not to switch the power source back on
Use a suitable measuring instrument to ensure that electrically charged components
(e.g., capacitors) are discharged
WARNING!
(1)
(3)
WARNING!
Follow the safety rules (see the begin-
ning of the "Safety" section)
Set the DC disconnector (1) to the 0
1
position
(2)
Undo the two 5x25 TX25 screws (2)
2
and remove the Datcom cover
If applicable, disconnect all plug con-
3
nections
Undo the two 5x25 TX25 screws (3)
4
(3)