SMA Sunny Mini Central 9000TL Instrucciones Para La Sustitución página 13

SMA Solar Technology AG
7. Wait 10 minutes before opening the enclosure lid.
8. Loosen all screws of the enclosure lid and remove the enclosure lid.
9. Ensure that no voltage is present between L and N at the AC terminal using a suitable
measuring device.
10. Ensure that no voltage is present between L and PE at the AC terminal using a suitable
measuring device.
11. Actively discharge the DC link. For this purpose use,
for example, a 2-pole voltage detector that does not
have its own voltage source. Using the voltage
detector, conduct a measurement on the connection
screws of the terminal of the DC link connection
cable until a value of 0 V is displayed.
12. Actively discharge the charging circuit of the
contactor on the left. For this purpose use, for
example, a 2-pole voltage detector that does not
have its own voltage source. Using the voltage
detector, conduct a measurement on the connection
screw of the terminal with the black connection
cable (1) and on the metal tongue of the contactor
on the left (2) until a value of 0 V is displayed.
13. Actively discharge the charging circuit of the
contactor on the right. For this purpose use, for
example, a 2-pole voltage detector that does not
have its own voltage source. Using the voltage
detector, conduct a measurement on the connection
screw of the terminal block with the red connection
cable (1) and on the metal tongue of the contactor
on the right (2) until a value of 0 V is displayed.
14.
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.
Replacement Manual
5 Disconnecting the Inverter from Voltage Sources
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1
NOTICE
CON-SMC9-11-RM-xx-10
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