SMA SUNNY CENTRAL CP XT Series - Visual Inspection and Mechanical Test; Sequence for Visual Inspection and Mechanical Test; Checking the Connections of the Cables for Communication, Control Supply Voltage and Monitoring; Checking the High-Current Contacts Made at the Installation Site

4 Commissioning
SMA Solar Technology AG
User Manual 29SCCPXT-E7-BA-en-58
☐ All doors and locks must function properly.
☐ All documentation must be available.
☐ All labels must be in place.
4.3 Visual Inspection and Mechanical Test
4.3.1 Sequence for Visual Inspection and Mechanical Test
Procedure See
1. Ensure that the minimum clearances are complied with. Section12.1.1, page145
2. Ensure that the grounding busbar has been professionally connected to the external grounding system.
3. Ensure that the cables for communication, control, supply voltage and
monitoring are correctly connected.
Section4.3.2, page29
4. Ensure that the high-current contacts made on the installation site are cor-
rectly connected.
Section4.3.3, page29
5. Ensure that the high-current contacts made at the factory are correctly
connected.
Section4.3.4, page30
6. Ensure that the connection busbars do not show any discoloration.
If the connection busbars show any discoloration, please contact us (see Section13 "Contact", page153).
7. Ensure that the settings of the switching units are made correctly. Section4.3.5, page30
8. Ensure that all connectors are correctly connected. Section4.3.6, page30
4.3.2 Checking the Connections of the Cables for Communication, Control
Supply Voltage and Monitoring
Test Point Tasks
Cables Ensure that the cable type and cross-section, the number of cables and the labeling comply
with the specifications in the schematic diagram.
Cable connection Ensure that the cable connection complies with the specifications in the schematic diagram.
If no external fast stop is to be installed, ensure that the terminals are wired with a jumper
wire in accordance with the schematic diagram.
Cable insulation Make sure that the insulation of the cables is correctly stripped. The insulation must not pre-
vent the contact with the terminal.
Bootlace ferrules Ensure that the bootlace ferrules are correctly crimped and that no stranded wires are visible.
Cable support rails Ensure that the cables are adequately attached to the cable support rails.
Shield clamping sad-
dles
Ensure that the contact between the cable shield and the shield bus is intact.
4.3.3 Checking the High-Current Contacts Made at the Installation Site
Test point Tasks
Cables Ensure that the cable type and cross-section, the number of cables and the labeling comply
with the specifications in the schematic diagram.