operational limits after informing the
electric utility company first.
3. If it cannot be recovered for a long time,
please confirm:
· whether the AC circuit breaker is disconnected
· whether the AC terminal is in good connection
· whether the power supply line is normal
· whether the safety regulation settings are
normal
12
DC
component of
the electricity
exceeds the
permissible
range
the current
exceeds 1A in static
state and 4A in
dynamic state
Disconnect the inverter from the utility
grid and the PV array, and reconnect it
after LED turns off. If this fault is still being
displayed, please contact the service.
13
EEPROM
Error, e.g.
transition
disturbance
Micro CPU read
EEPROM failed
Disconnect the inverter from the
utility grid and the PV array, and
reconnect it after LED turns off. If this fault
is still being displayed, please contact the
service.
14
Internal
communica-
tion fault
Disconnect the inverter from the utility
grid and the PV array, and reconnect it
after LED turns off. If this fault is still being
displayed, please contact the service.
Master CPU
communicate
with slave CPU
abnormal
15
Bus-voltage
too high
Bus-voltage is
greater than 1030V
Check the open-circuit voltages of the
strings and make sure it is below the
maximum DC input voltage of the
inverter. If the input voltage lies within the
permissible range while the fault occurs,
please contact the service.
16
Bus-voltage
too low
Check the open circuit voltage of the
strings and make sure it is below the
maximum DC input voltage of the inverter.
If the input voltage lies within the
permissible range while the fault occurs,
please contact the service.
17
DRM S9 Error
DRM switch S9
fault
Check the connection of DRM device. If
the DRM device is connected normally
while this fault occurs, please contact
the service.
Bus-voltage is 20V
lower than
standard bus
voltage
27
26
V.
2
V.
2
18
DRM S0 Error DRM switch S0 fault
Check the connection of DRM device. If
the DRM device is connected normally
while this fault occurs, please contact
the service.
19
N and PE
voltage
exceeds
permitted
range
Check if the inverter is securely
grounded.
