Detecting New Devices; Setting The Power Limitation; Setting The Active Power Ramp-Up - SMA SUNNY CENTRAL 500CP XT User Manual

4 Commissioning
2. Select Sunny Central > Settings > Network.
3. In the field Virtual public HTTP port, enter the port enabled in the router for HTTP access. Via this port, you can
access the user interface from the Internet.
4. In the field Webserver port, enter the port via which the user interface can be accessed.
5. In the field Webservice port, enter the port via which the data of the inverter is to be transmitted to Sunny Portal
and firmware updates are to be uploaded.
6. If you would like to use the Modbus protocol, activate the box Use Modbus.
7. In the field Modbus port, enter the port to be used by the inverter when communicating via the Modbus
protocol. The default setting is port 502.
8. If you would like to use a proxy server, activate the box Use proxy server.
9. Enter the IP address and the port of the proxy server in the field Proxyserver address.
10. If you would like to use the authentication of the proxy server, activate the box Use authentication.
11. Enter the data of your proxy server in the fields User name and Password.
12. Select the button [Save].
4.6.5

Detecting New Devices

During commissioning of a PV power plant, all devices must be detected. If multiple interfaces (e.g. COM2 and
COM3) are used in the inverter, detection of new devices must be carried out separately for all interfaces.
Devices will need to be redetected if you have:
• replaced devices in your PV power plant
• removed devices from your PV power plant
• added devices to your PV power plant
Detection of the PV power plant may take several minutes
Depending on the number of devices in your PV power plant, the duration of the detection process may vary.
• If there is no indication of progress on the communication unit after three minutes, cancel the search.
• Make sure the data cable of each device is properly connected and repeat the search.
Procedure:
1. Log into the user interface (see Section 9.4.1, page 78).
2. Select Data > Detection.
3. In the field Total number of devices to be detected, enter the number of devices connected to the
communication unit. Hint: If you do not know the number, enter 1.
4. Select the button [Start detection].
☑ The communication unit starts detecting all inverters and displays its progress. Once all devices have been
detected, the message ### Device detection finished ### is displayed.
5. Select the button [OK].
4.6.6

Setting the Power Limitation

4.6.6.1

Setting the Active Power Ramp-Up

Parameter block
Some parameters must only be changed in the operating state "Stop". The entry will not be accepted in any other
operating state.
The inverter works up to its maximum feed-in power via a ramp. This means that the inverter gradually increases the
ratio of feed-in power per second by the value set in the parameter WGra.
36 SCCPXT-E7-BA-en-58
SMA Solar Technology AG
User Manual