6.6
Connecting the Cluster Controller to the Voltage
Supply
Danger to life due to electric shock from touching an ungrounded product
Touching an ungrounded product can cause a lethal electric shock.
• Ensure that the product is integrated in the existing overvoltage protection.
• Ground the enclosure of the product.
Damage to the product due to condensation
If the product is moved from a cold environment to a warm environment, condensation may form
in the product.
• When there is a large temperature difference, wait for the product to reach room
temperature before connecting to the voltage supply.
Procedure:
To connect the Cluster Controller to the voltage supply, perform the following actions in the
specified order. The exact procedure is described in the following sections.
• Connecting the Grounding Conductor to the Cluster Controller
• Connecting the Power Supply Unit
Connecting the Grounding Conductor to the Cluster Controller
Additionally required material (not included in the scope of delivery):
☐ 1 grounding conductor (see Section 6.3 "Cable Requirements", page 28)
Procedure:
1. Remove 10 mm of the cable sheath from the grounding conductor.
2. Insert the insulated conductors into the ring
terminal lug and crimp with a crimping tool.
6 Connection and Commissioning
SMA Solar Technology AG
Installation Manual
ClusterController-IA-en-15
32