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6.
Danger to life due to high voltages
The capacitors in the inverter take five minutes to discharge.
• Wait five minutes before opening the enclosure lid.
7. Ensure that no voltage is present at the DC inputs of the inverter.
8. Unscrew all the screws of the enclosure lid using an Allen key (AF 5) and remove the
enclosure lid.
9. Use an appropriate measuring device to ensure that no voltage is present at the AC
connecting terminal plate between
L1
and
N
,
L2
and
N
, and
L3
and
N
. Insert the test probe
into each round opening of the terminal.
10. Use an appropriate measuring device to ensure that no voltage is present at the AC
connecting terminal plate between
L1
and
PE
,
L2
and
PE
, and
L3
and
PE
. Insert the test
probe into each round opening of the terminal.
11. Ensure that no voltage is present between any terminal of the multifunction relay and
PE
of the
AC connecting terminal plate.
12.
Damage to the inverter due to electrostatic discharge
The internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Ground yourself before touching any component.
2 Safety
SMA Solar Technology AG
Service Manual for Installers
STP5-12TL-20-SG-en-13
8
Содержание SUNNY TRIPOWER 10000TL
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