SMA POWER PLANT CONTROLLER - Manual (Page 22)

6 Installation SMA Solar Technology AG
22 PPC-BE-P7-en-13 Operating Manual
6.2 Connecting the Supply Voltage
The Power Plant Controller is equipped with a redundant voltage supply to ensure maximum system availability, e.g. in
case of a failure of a line conductor or a DC voltage source.
Cable requirements:
☐ Conductor cross-section if a bootlace ferrule is used: 0.25 mm 2 to 2.5 mm 2
☐ Conductor cross-section if no bootlace ferrule is used: 0.25 mm
2
to 4 mm
2
Requirements:
☐ The fuse protection of the supply voltage must comply with the country-specific requirements.
☐ No supply voltage must be present.
☐ Provide for external strain relief.
Procedure:
1. Insert the supply voltage cable into the Power Plant Controller (see Section 11.1, page 49).
2. Dismantle the supply voltage cable.
3. Strip 10 mm to 12 mm off the conductor insulation.
4. If you are using bootlace ferrules, crimp them.
B -A5 Network (optical fiber)
C -X703 Analog outputs
D -X702 Analog inputs
E -X701 Digital outputs
F -X700 Digital inputs
G -X300 Voltage supply
'$1*(5
Danger to life due to electric shock
Omitted disconnection device or incorrect working practices can cause electric shock. This results in death or serious
injury.
• Prior to installation work, install a disconnection device close to the Power Plant Controller. The disconnection
device must meet the requirements of local standards and directives. All-pole disconnection is recommended.
• Prior to cable connection, disconnect the supply voltage via the disconnection device.
• Observe the five safety rules when disconnecting the supply voltage:
– Disconnect from voltage sources
– Ensure that the device cannot be reconnected.
– Ensure that no voltage is present
– Ground and short-circuit the device
– Cover and isolate any adjacent live components
• Connect the cables in the Power Plant Controller in accordance with the supplied circuit diagram and observe the
terminal assignment.
Position Designation Explanation