SMA SUNNY CENTRAL 900CP XT - Connecting the Cable for the Status Report of the Insulation Monitoring; Connecting the Cable for the Status Report of the AC Contactor Monitoring; Connecting the Transformer Protection

SMA Solar Technology AG 12 Cable Connection of External Devices and Connections in the Interface Cabinet
Installation Manual SCCPXT-IA-D7-en-42 59
4. Press the shield clamping saddle down onto the shield of the
stripped cable until it clicks into place and fasten hand-tight.
5. Attach the cable to the cable support rail using a cable tie. This will ensure that the cable cannot be pulled out
inadvertently.
12.3.5 Connecting the Cable for the Status Report of the Insulation Monitoring
The switching status can be queried via a contact. For details of terminal assignment, see circuit diagram.
Requirements:
☐ The connected load must work with a voltage of 230 V
AC
or 24 V
DC
.
☐ The connected load must draw a current of 10 mA to 6 A.
Procedure:
1. Lead the cable into the interface cabinet (see Section12.2, page55).
2. Connect the cable in accordance with the circuit diagram (see Section12.3.1, page55).
3. Attach the cable to the cable support rail using a cable tie. This will ensure that the cable cannot be pulled out
inadvertently.
12.3.6 Connecting the Cable for the Status Report of the AC Contactor Monitoring
The switching status can be queried via a contact. For details of terminal assignment, see circuit diagram.
Requirements:
☐ The connected load must work with a voltage of 230 V
AC
or 24 V
DC
.
☐ The connected load must draw a current of 10 mA to 6 A.
Procedure:
1. Lead the cable into the interface cabinet (see Section12.2, page55).
2. Connect the cable in accordance with the circuit diagram (see Section12.3.1, page55).
3. Attach the cable to the cable support rail using a cable tie. This will ensure that the cable cannot be pulled out
inadvertently.
12.3.7 Connecting the Transformer Protection
The Sunny Central is equipped with a terminal for monitoring the MV transformer. Under fault conditions, the
Sunny Central is immediately switched off. To use the transformer monitoring, an external voltage supply of 230 V/50 Hz
must be provided in the MV transformer.
Cable requirement:
☐ The cable must be shielded.