SMA SI 3324 - Manual (Page 58)

Troubleshooting/Problem Solving SMA Technologie AG
Page 58 SI3324/4248-14:FE2406 User Manual
11.2 Troubleshooting FAQs
Here you will find answers to frequently asked questions (FAQs):
1. The Sunny Island 3324/4248 does not switch to the running generator, even
though the generator control relay has closed (Gen_Request) (the "24-1
GenControl" parameter is set to "Direct", see page 30).
- Check the generator fuses.
- The stand-alone grid load current ("11-2 AmpacInverter" parameter) is
greater than the maximum generator current ("24-2 AmpacGenMax"
parameter). Reduce the stand-alone grid load until the stand-alone grid load
current is smaller than the maximum generator current. The Sunny Island
3324/4248 can now switch to the generator.
- The reverse power that can be fed back into the generator for up to five
seconds has been exceeded. A "!" is shown in the display. The generator
cannot be connected for a period of 20 minutes. Set the "24-3 GenOperation"
parameter to "Release" (see page 33).
2. The Sunny Island 3324/4248 does not switch to the running generator, the
generator control relay (Gen_Request) is open .
- The generator was manually started, even though the "24-1 GenControl"
parameter is set to "Direct" (see page 30) or "GenMan" (see page 31).
-
Set the "24-3 GenOperation" parameter to "Run1h" (see page 33). The
Sunny Island 3324/4248 switches to the generator for a period of one
hour. After one hour, the generator is automatically switched off by the
Sunny Island 3324/4248 and the "24-3 GenOperation" parameter is set
to the previous state.
- You can also set the "24-3 GenOperation" parameter to "Start" (see
page 32). The Sunny Island 3324/4248 will immediately switch to the
generator. You must note that the Sunny Island 3324/4248 will no longer
switch off the generator. Only when you manually reset the "24-3
GenOperation" parameter back to "Auto" can the Sunny Island 3324/
4248 again assume control of the generator.
VBatLow Battery voltage too low:
wrong parameter setting Check the value of the "23-1
VdcBatNominal" parameter setting (see
section 10.3 "Adjustable System
Parameters" (page 51)).
Deeply discharged batteries Recharge the batteries as soon as
possible.
One or more defective batteries Check the batteries.
Watchdog Automatic reset If this fault frequently occurs please
contact your installer or the SMA hotline
(see section 14 "Contact" (page 65)).
Fault display Cause Fault correction