SMA SB3000TL-US-22 Manual De Instrucciones página 11

SMA Solar Technology AG
Danger to life due to high voltages
The capacitors in the inverter take 5 minutes to discharge.
• 5 Wait 10 minutes before opening the enclosure lid.
• Alternatively, it is possible to actively discharge the DC link after 10 minutes. To do this, carry out the following
steps with increased caution until the last step "Actively discharge DC link".
Damage to the enclosure seal in subfreezing conditions
If you open the inverter when temperatures are below freezing, the enclosure seals can be damaged. This can lead
to moisture entering the inverter.
• Only open the inverter if the ambient temperature is not below -5°C (23°F).
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing, remove it prior to
opening the inverter (e.g. by melting the ice with warm air).
Procedure:
1. Switch off or open all AC disconnecting switches and circuit breakers in the output circuit of the inverter and
secure against reconnection.
2. If an external DC disconnecting switch is available, switch off or open the DC disconnecting switch.
3. Turn the rotary switch of the DC Disconnect to Off.
4. Wait until the LEDs and display switch off.
5. Remove all 6 screws of the lower enclosure lid using an Allen key
(AF 3) and remove the enclosure lid.
6. Ground yourself before touching any component.
7. Ensure that no voltage is present on the AC terminal block using a suitable measuring device. Insert the test probe
into each round opening of the terminal:
Replacement Manual
5 Disconnecting the Inverter from Voltage Sources
WARNING
NOTICE
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