SMA STP 10000TL-10 Installation - Manual (Page 75)

SMA Solar Technology AG 11 Messages
Installation Manual STP10-17TL-IA-en-32 75
3301 to
3303 < Unstable operation >
There is not enough power at the DC input
of the inverter for stable operation.
This may be caused by snow on the
PV modules. • Wait until irradiation is higher.
• If this event recurs at medium
irradiation levels, check the
PV system design and the correct
circuitry of the PV array.
3401,
3402 < DC overvoltage >
< Disconnect generator >
The DC input voltage connected to the
inverter is too high. • Disconnect the inverter from the
PV array immediately
(see Section 9 "Disconnecting
the Inverter from Voltage
Sources", page 61). The inverter
may otherwise be destroyed.
• Check that the DC voltage of the
strings adheres to the maximum
input voltage of the inverter before
reconnecting the inverter to the
PV array.
3501 < Insul. resistance >
< Check generator >
The inverter has detected an earth fault in
the PV array. • Check strings for earth faults
(see Section 12.2 "Checking the PV
Array for Earth Faults", page 83).
• The installer of the PV array must
remedy any earth faults before the
affected string is reconnected.
3601 < High discharge curr. >
< Check generator >
The leakage current from the inverter and
the PV array is too high.
This may be caused by a sudden earth
fault, a residual current or malfunction, or
the earth capacitance of the PV system is
too high.
The inverter interrupts feed-in operation
immediately after exceeding a threshold
and then automatically reconnects to the
electricity grid. • Check strings for earth faults
(see Section 12.2 "Checking the PV
Array for Earth Faults", page 83).
• The installer of the PV array must
remedy any earth faults before the
affected string is reconnected.
• Check whether the leakage current
from the PV modules is too high.
3701 < Resid.curr.too.high >
< Check generator >
The inverter has detected a residual
current through brief earthing of the
PV array. • Check strings for earth faults
(see Section 12.2 "Checking the PV
Array for Earth Faults", page 83).
• The installer of the PV array must
remedy any earth faults before the
affected string is reconnected.
Event no. Display message and cause Corrective measures