9 Service
SMA Solar Technology AG
44
STPS60-IA-xx-13
Installation Manual
Events caused by the self-test
ID
Description
Measure
DN
O
SMA Se
rvice Lin
e
DC
100
DC input current is negative. Sensor
fault.
Check the polarity of the battery. If
polarity is correct, call Service.
-
x
-
264
Measurement circuit test failed.
If the event persists, contact Service.
-
x
-
266
Measurement circuit test failed.
Warning:
Do not operate the DC
load-break switch of the inverter.
Switching off the DC voltage using a
suitable DC load-break switch in the
Combiner Box is still possible. Do not
perform any further actions or switching
operations on the inverter. Contact
Service immediately.
-
x
x
272
DC surge protection device error.
Inverter will continue operation without
overvoltage protection.
Replace DC surge protection device.
See SPD replacement instructions for
details.
-
x
-
273
AC grid surge protection device error.
Inverter will continue operation without
overvoltage protection.
Replace AC grid surge protection
device. See SPD replacement
instructions for details.
-
x
-
274
Overvoltage protection device status
unknown.
Restart the inverter. If the event persists,
contact Service.
-
x
-
350-352 Residual-current monitoring unit (RCMU)
self-test failed.
Contact the Service.
-
x
-
353
Current sensor test failed.
Contact the Service.
-
x
-
356-362 Transistor and relay test failed or inverter
relay has failed (contact assumed
welded).
Warning:
Do not operate the DC
load-break switch of the inverter.
Switching off the DC voltage using a
suitable DC load-break switch in the
Combiner Box is still possible. Do not
perform any further actions or switching
operations on the inverter. Contact
Service immediately.
-
x
-
366
Residual-current monitoring unit (RCMU)
self-test failed.
Contact the Service.
-
x
-