SMA SB 3000TL-20 Installation - Manual (Page 75)

SMA Solar Technology AG Messages
Installation Guide SB30TL_40TL_50TL-IA-IEN120231 75
36 < High discharge curr. >
< Check generator >
The discharge current from the inverter and
the PV generator is too high.
This can be caused by a sudden grounding
fault, failure current or an actual fault in the
device.
The inverter interrupts grid feed
immediately after exceeding a limiting
value and then automatically re-connects
to the grid.
• Check the strings for ground faults, as
described in section 11.1 ”Checking
the PV Generator for a Ground
Fault” (page 79).
• The installer of the PV generator must
remedy the ground faults before you
re-connect the affected string.
37 < Resid.curr.too.high >
< Check generator >
• Check the strings for ground faults, as
described in section 11.1 ”Checking
the PV Generator for a Ground
Fault” (page 79).
• The installer of the PV generator must
remedy the ground faults before you
re-connect the affected string.
38 < DC overcurrent >
< Check generator >
An overcurrent condition occurs on the DC
side of the inverter and it switches off.
If this event occurs often:
• Check the layout and the wiring of
the PV generator.
39 < Waiting for DC start conditions >
< Start cond. not met >
The input power or the voltage of the PV
modules is not sufficient for feeding into the
grid. • Wait for higher irradiation.
• If this event recurs at medium
irradiation, check the PV system
design and correct the connection of
the PV generator.
60 - 64 < Self diagnosis >
< Interference device > • Contact the SMA Serviceline
(see section 15 ”Contact”
(page 101)).
65 < Self diagnosis >
< Overtemperature >
Inverter switches off due to excess
temperature. • Ensure sufficient ventilation.
• Check heat dissipation, as described
in section 8.1 ”Checking Heat
Dissipation” (page 66).
66 < Self diagnosis >
< Overload > • Contact the SMA Serviceline
(see section 15 ”Contact”
(page 101)).
Event no. Display message and cause Corrective measures