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SMA Solar Technology AG
Bolted connection
Attaching battery management system and battery mod-
ules
Connecting DC cables in inverter
13.5
Cleaning and Maintenance Procedure
This section describes the procedure for the electrical connection of the product. It provides an overview of the steps,
which must be performed in the prescribed sequence.
Procedure
1.
Disconnect the battery and inverter from voltage sources. Section 11, page 119
2.
Check electrical connections.
3.
Perform visual inspection of battery.
4.
Clean and maintain battery cabinet.
5.
Clean and maintain battery management system.
6.
Clean and maintain battery modules.
7.
Document system condition.
8.
Clean inverter fans.
9.
Recommission battery and inverter.
10.
Check inverter fans.
13.6
Checking Electrical Connections
Danger to life due to electric shock when live components or DC cables are touched
The DC cables connected to a battery may be live. Touching live DC cables results in death or serious injury due to
electric shock.
• Have the inverter and the battery mounted, installed and commissioned only by qualified persons with the
appropriate skills.
• Disconnect the system from voltage sources and make sure it cannot be reconnected before working on the
device.
• Do not touch non-insulated parts or cables.
• Wear suitable personal protective equipment for all work on the product.
Maintenance work
Follow the local regulations and standards whenever performing maintenance work.
These electrical connections must be checked every 12 months:
Requirements:
• A mobile end device (e.g., laptop) must be connected to the battery management system.
System Manual
Tools
PH2
Hexagon socket, AF16
See
Section 13.6, page 127
Section 13.7, page 128
Section 13.8, page 128
Section 13.9, page 129
Section 13.10, page 130
Section 13.11, page 130
Section 13.12, page 130
Commissioning
Section 13.13, page 132
DANGER
13 Cleaning and Maintenance
Torque
3 Nm
24 Nm ± 2 Nm
ESSX-20-SH-en-10
127
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