SMA SC 500CP-10-JP Installation Manual User Manual
Page 65
SMA Solar Technology AG
12 Cable Connection of External Devices and Connections in the Interface Cabinet
Installation Manual
SCCP-JP-IA-A4-en-12
65
Cable requirements for internal voltage supply:
☐ The cable must be shielded.
☐ Maximum cable length with cable cross-section of 2.5 mm
2
: 130 m
☐ Maximum cable length with cable cross-section of 1.5 mm
2
: 80 m
Requirements:
☐ The Sunny Central must be disconnected (see Section 14 "Disconnecting the Sunny Central", page 69).
☐ Use latching switches only.
Procedure:
1. Insert the cable of the external fast stop in the interface cabinet (see Section 12.2 "Leading the Cables into the
2. Remove the jumper wire between the terminals for the external fast stop (see circuit diagram).
3. Connect the cable in accordance with the circuit diagram (see Section 12.3.1 "Connecting the Cables to the
Connecting Terminal Plate", page 59).
4. Remove the shield clamping saddle from the busbar.
5. Press the shield clamping saddle down onto the shield of the
stripped cable until it snaps into place and fasten hand-tight.
6. Attach the cable to the cable support rail using a cable tie. This will ensure that the cable cannot be pulled out
inadvertently.
12.3.8 Connecting the Cable for Querying the Inverter Status
The operating state of the inverter can be queried via a contact. For details of terminal assignment, see circuit diagram.
Cable requirement:
☐ Maximum conductor cross-section: 2.5 mm
2
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. Insert the cables in the interface cabinet (see Section 12.2 "Leading the Cables into the Interface Cabinet",
2. Connect the cables in accordance with the circuit diagram.
3. Attach the cables to the cable support rail using a cable tie. This will ensure that the cable cannot be pulled out
inadvertently.