SMA Solar Technology AG GRID-CONNECT-BOX 12, Руководство по эксплуатации

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6 Electrical Connection SMA Solar Technology AG
20 GRID-BOX-12-3-20-BE-en-11 Operating Manual
Cable requirements:
Conductor material: copper
Conductor cross-section: 1.5 mm² to 2.5 mm²
The AC conductors and DC conductors must always be routed in separate cables.
Procedure:
1. Insert the control cables into the Grid-Connect-Box (see Section 9.3, page 25).
2. Connect the control cables to the spring-cage terminals (see Section 9.4.2, page 27).
• X310:1,2 : Multicluster-Box grounding contactor interlock
• X310:4,5 : Grid-Connect-Box grid contactor feedback
• X311:1 - 4 : Grid-Connect-Box voltage measurement
• X311:6,7 : Multicluster-Box generator contactor interlock
• X311:8,9 : Grid-Connect-Box AC contactor interlock
3. Ensure that the insulated conductors are firmly in place.
6.6 Mounting the Kick Plates
Requirement:
All installation work must be completed.
Procedure:
1. Ensure that the power cables are secured with a strain relief.
2. Insert the kick plates and attach using the fastening screws (TX 30, torque: 12 Nm).
Ground connection at terminals X310 and X311
If the control cable between the Multicluster-Box and Grid-Connect-Box contains a grounding conductor, the
grounding conductor terminal must not be connected on both sides.