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3.3 Fault indications
Your solar inverter operates fully automati-
cally and maintenance-free. However, if
operational faults occur due to external or
internal causes, these will be displayed on
the screen.
· AC over/undervoltage (3-phase)
Your solar inverter monitors the limits of
minimum and maximum permissible
3-phase grid voltage. If these limits are
exceeded (Umin = 184 V, UN = 230 V,
Umax = 264 V), the solar inverter will switch
off and will only start up again when the
voltage value is within the limits. The
fault cut-out can be triggered even by very
brief overvoltages and undervoltages.
Display for AC overvoltage:
125
EN
Line 1 Error: UAC_3
Line 2 Overvoltage
Display for AC undervoltage:
· AC over/undervoltage (1-phase)
Your solar inverter monitors the limits of
minimum and maximum permissible grid
voltage in the feed-in phase. If these limits
are exceeded, the solar inverter will switch
off and will only start up again when the
voltage value is within the limits.
Display for AC overvoltage:
Display for AC undervoltage:
Line 1 Error: UAC_3
Line 2 Undervoltage
Line 1 Error: UAC_1
Line 2 Overvoltage
Line 1 Error: UAC_1
Line 2 Undervoltage