8 Decommissioning
SMA Solar Technology AG
Installation Manual
MDSEN-US-40-IA-en-13
29
8
Decommissioning
8.1
Removing the Module
DANGER
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous DC voltage, which is present in the
DC conductors and the live components of the inverter. Touching the DC conductors or the live
components can lead to lethal electric shocks.
• Prior to performing any work on the inverter, always disconnect the inverter from voltage
sources on the AC and DC sides as described in the inverter manual. When doing so, note
that even if the DC load-break is switched off, there will be dangerous direct voltage present
in the DC conductors of the inverter.
NOTICE
Damage to the product due to sand, dust and moisture ingress
Sand, dust and moisture penetration can damage the product and impair its functionality.
• Only open the inverter if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the inverter during a dust storm or precipitation.
• Close tightly all enclosure openings.
• Only use listed rain-tight or liquid-tight conduit fittings to attach the conduits to the product.
Procedure:
1. Remove the enclosure lid of the DC Connection Unit. Unscrew all screws with a Torx
screwdriver (TX25) and remove the enclosure lid carefully forward.
2. Set the screws and the enclosure lid aside and store safely.
3. Remove all connecting terminal plates from the used connection sockets of the module.
4. Unscrew the fastening screw on the module using a
Torx screwdriver (TX 25).
5. Remove the module:
Summary of Contents for MD.SEN-US-40
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