Troubleshooting
SMA Solar Technology AG
18
SMETER-IEN084710
Installation Guide
9 Troubleshooting
9.1 LED Overview
Ready-LED (green)
Status
Meaning
Measure
permanently on
Voltage is ok
None
flashes
Communication is taking place at present via the
RS485 bus.
None
permanently off
There is no voltage, or the voltage is too low.
Check the supply
voltage and the power
supply plug.
Pulsating-LED (yellow)
Status
Meaning
Measure
flashes
Normal operation
Counter impulses from the consumption meter are
arriving.
None
permanently off
Counter impulses from the consumption meter are
not arriving presently.
-or-
There is no power consumption by the school at
present.
Check the wiring
None
permanently on
There is a short-cirtuit of the S0 interface.
-or-
There is no power consumption by the school at
present.
Check the wiring
None