SMA SUNNY CENTRAL 800CP XT - Displaying Disturbance Messages for the Reactive Power Setpoint

7 Troubleshooting
SMA Solar Technology AG
User ManualSCCPXT-E7-BA-en-5874
Display Cause and corrective measures
ComFail
The mode WCtlCom has been selected and the expected signal with a valid active
power limitation has been absent for at least five minutes.
Corrective measures:
• Ensure that the communication units can be accessed via the Internet.
• Ensure that the communication units are connected correctly.
• Ensure that the cabling between the communication units is ok.
AnInFail
The mode WCnstNomAnIn has been selected and the value measured at the analog in-
put is less than 2mA.
Corrective measures:
• Make sure the cable is correctly connected to the analog input.
ComInvalid
The mode WCtlCom has been selected and there is invalid content in the power setpoint
information.
Corrective measures:
• Check the power specification settings.
7.5.7 Displaying Disturbance Messages for the Reactive Power Setpoint
The instantaneous value Q‑VArModFailStt displays errors or warnings relating to the reactive power setpoint.
Procedure:
1. Log into the user interface (see Section9.4.1, page78).
2. Select the instantaneous value Q-VArModFailStt.
Display Cause and corrective measure
Off No mode for specifying the reactive power setpoint has been selected.
OK A mode for specifying the reactive power setpoint has been selected and no error is
present.
ComFail
The mode VArCtlCom or PFCtlCom has been selected and the expected signal with a
valid reactive power setpoint has been absent for at least five minutes.
Corrective measures:
• Ensure that the communication units can be accessed via the Internet.
• Ensure that the communication units are connected correctly.
• Ensure that the cabling between the communication units is ok.
AnInFail
The mode VArCnstNomAnIn or PFCnstAnIn has been selected and the value mea-
sured at the analog input is less than 2mA.
Corrective measures:
• Make sure the cable is correctly connected to the analog input.
ComInvalid
The mode VArCtlCom or PFCtlCom has been selected and there is invalid content in
the power setpoint information.
Corrective measures:
• Check the power specification settings.