4 alarm messages / dealing with errors, 1 clear alarm signal, 2 interface – SMA SC 200 User Manual
Page 72: Alarm messages / dealing with errors, Clear alarm signal, Interface
External Grid Monitoring Relay (optional)
SMA Solar Technology AG
72
SC-BEN100262
User Manual
12.4 Alarm Messages / Dealing with Errors
Depending on the cause of the error, various error messages will appear on the display.
By means of the „Menu“ button you can scroll through the alarm messages.
12.4.1 Clear Alarm Signal
The grid monitoring relay signals an error / alarm via the "Alarm" LED.
You can clear the alarm signal by pressing the "Clear" button. We distinguish between the following
error states:
• Error still present:
As long as the error is still present it cannot be cleared. The blinking "Alarm" LED on the control
panel indicates that the alarm state is still active.
• Error no longer present:
Once the current error has been remedied, the "Alarm" LED changes from blinking to
continuously lit. The relay is configured such that the error message is automatically reset after
the error has been signalled and the reset time has elapsed.
12.4.2 Interface
A configuration interface is available for configuring the relay via a PC: To do this you need a special
interface cable (DPC) and software. You can find further information in the relay manual. This is
supplied with the Sunny Central on a CD-ROM or you can find it on the internet under
www.woodward.com.
Alarm text
Description
Overvolt. 1
The threshold value for Level 1 of overvoltage
monitoring has been exceeded.
Overvolt. 2
The threshold value for Level 2 of overvoltage
monitoring has been exceeded.
Und.volt. 1
The threshold value for Level 1 of undervoltage
monitoring has been exceeded.
Und.volt. 2
The threshold value for Level 2 of undervoltage
monitoring has been exceeded.
Overfreq. 1
The threshold value for Level 1 of overfrequency
monitoring has been exceeded.
Overfreq. 2
The threshold value for Level 2 of overfrequency
monitoring has been exceeded.
Und.freq. 1
The threshold value for Level 1 of underfrequency
monitoring has been exceeded.
Und.freq. 2
The threshold value for Level 2 of underfrequency
monitoring has been exceeded.