SRP SR3000TL - Inverter Status Diagnostics and Repair; Inverter Error Code Analysis

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Inverter Status Diagnostics and Repair
The SR Series Inverter is equipped with an on-board self diagnostic system.
This system can automatically identify a large number of possible operational
issues and provide notification via its LCD screen. This system makes it possible
to quickly isolate technical issues, and to distinguish between Service Codes
related to the installation versus Service Codes which are internal to the
inverter. Whenever the self diagnostic system has identified a particular issue,
the respective Service Code is displayed on the LCD screen.
Table 2. Inverter Error Code and Error Code Description
LCD
Indicate
Designation Description Repair
Er00 DC_BUS
pre-Charge fail
The Inverter is in soft start
procedure, but the DC Bus
cannot reach and maintain
anticipative charging
voltage.
1. Disconnect ALL PV
(+) or PV (-).
2. Wait for few seconds.
3. After the LCD
switches off, reconnect
and check again.
4. If error code keeps
recurring, contact your
local distributor.
Er03 INVERTER voltage
abnormal
The Inverter Output voltage
is abnormal.
Er07 DC_BUS
over-voltage
The DC BUS inside is lower
or high than expected.
Er08 DC_BUS
under-voltage
Er17 EEPROM ERROR on
the control board
EEPROM Data is wrong.
Er19 DC_BUS discharge
fail
Capacitors of the DC Bus
can’t be discharged down.
Er22 Output Relay fail The Inverter Output Relay is
abnormal.
Er24 Output Current
sense fail
The Inverter Output Current
fails to detect.
Er25 BOOSTER_A
over-current
Over-current on the DC side.
This fault code is displayed
if the current in the DC
network is larger than
specified.
Er26 BOOSTER_B
over-current
Er30 Rating setting of
Driver board does
not match EEROM
of control board
EEPROM Data is wrong.
LCD
indicate
Designation Description Repair
Er06 EPO Inverter enters into
EPO mode (Emerge
Power Off).
1. Remove the short circuit
occurred at the EPO terminal.
2. If error code keeps
recurring, contact your local
distributor.
Er09 Inverter Output
over-current
Over-current on the
AC side. This fault
code is displayed
if the current in
the AC network
is larger than
specified.
1. Turn off AC breaker, and
then check the peripheral AC
system configuration and the
grid conditions.
2. If error code keeps
recurring, contact your local
distributor for help.
Er11 Inverter over-load Overload on the
AC side. This fault
code is displayed if
the load in the AC
network is larger
than specified.
Contact your local distributor
for help.
Er13 Inverter
short-circuit
Short-circuit on the
AC side.
Contact your local distributor
for help.
Er14 Inverter PLL fail The phase of
Inverter can’t
synchronize with
the utility.
Contact your local distributor
for help.
Er29 Inverter output
DC current over
spec.
The DC component
of the electricity
fed into the grid
is longer than the
permissible range.
Contact your local distributor
for help.
Er10 Inverter Over
temperature
The internal
temperature is too
high.
1. Try to reduce the ambient
temperature.
2. Move the inverter to a
cooler place.
3. If error code keeps
recurring, contact your local
distributor for help.
Er18 Heat Sink Over
temperature
The Heat Sink
temperature is too
high.
Contact your local distributor
for help.