SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Connecting the Cables for Communication, Control, Supply Voltage and Monitoring; Connecting the Cables in the Communit; Connecting Optical Fibers

Torques of the power connections:
Type of terminal lug Torque
Tin-plated aluminum or copper terminal lug on aluminum bar 37Nm for M12
10Nm for M8
Additionally required mounting material (not included in the scope of delivery):
☐ Clean cloth
☐ Ethanol cleaning agent
Requirement:
☐ The reduction of DC input currents must be complied with (see Section16.3.2, page252).
Procedure:
1. Disassemble the panels (see Section12.3.1.2, page164).
2. Disassemble the protective covers (see Section12.3.1.1, page163).
3. Prepare the cables for connection (see Section12.5, page172).
4. Clean the tin-plated contact surfaces in the connection area with the non-woven abrasive until they have a light
metallic sheen.
5. Clean all contact surfaces in the connection area using a clean cloth and ethanol cleaning agent and do not
touch the contact surfaces after cleaning.
6. Connect the cables in accordance with the circuit diagram. Only use the screws, nuts and washers included in the
scope of delivery and make sure that the screw heads always point forwards.
7. Secure the cables on the cable support rail. This will prevent the cable from being pulled out inadvertently.
8. Mount the protective covers (see Section12.3.1.1, page163).
9. Mount the panels (see Section12.3.1.2, page164).
5.7 Connecting the Cables for Communication, Control, Supply Voltage
and Monitoring
Depending on the order option and the circuitry of the network devices, e.g., in ring topology, the network devices will
be connected both in the Communit and in the inverter. Connect the communication devices in accordance with the
communication plan of the PV system. The communication plan is normally created in the course of system planning.
5.7.1 Connecting the Cables in the Communit
5.7.1.1 Connecting Optical Fibers
Additionally required material (not included in the scope of delivery):
☐ Optical fiber pigtails of the appropriate optical fiber type with subscriber connectors.
Requirements:
☐ The patch panel and the network switches must be suitable for the selected type of optical fiber.
☐ The optical fibers must be correctly inserted through the base plates of the MVPowerStation and in the Communit
(see Section12.4, page167).
5 Installation
SMA Solar Technology AG
System Manual 63MVPS22JP-SH-en-11