Delta SOLIVIA 30 EU T4 TL, Руководство по эксплуатации и установке

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12.Diagnostic and maintenance
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12.Diagnostic and maintenance
EN
Message Possible cause Action
Heat Sink NTC2
Fail
1. Actual utility
voltage is under the
UVR setting
2. Incorrect country
or Grid setting
3. Wrong connec
-
tion in AC plug
4. One or more
internal fuses are
broken
5. Detection circuit
malfunction
1. Check the utility
voltage connection
to the inverter ter-
minal.
2. Check country &
Grid setting
3. Check the con
-
nection in AC plug
4. Replace fuses
and check all
switching devices
in boost & inverter
stages
5. Check the detec
-
tion circuit inside
the inverter
DSP ADC Vgrid/
Iout fail
1. Actual utility
voltage is over the
OVR setting
2. Utility voltage
is over the Slow
OVR setting during
operation
3. Incorrect country
or Grid setting
4. Detection circuit
malfunction
1-2. Check the
utility voltage on the
inverter terminal
3. Check country &
Grid setting
4. Check the detec
-
tion circuit inside
the inverter
DSP ADC Vin/Vbus
Fail
1. Actual Solar1
voltage is over
1000Vdc
2. Detection circuit
malfunction
1. Modify the solar
array setting, and
make the Voc less
than 1000Vdc
2. Check the detec -
tion circuit inside
the inverter
DSP ADC Iin/Iboost
Fail
1. Auxiliary power
circuitry malfunction
2. Detection circuit
malfunction
1. Check the auxil -
iary circuitry inside
the inverter
2. Check the detec -
tion circuit inside
the inverter
Red. ADC Vgrid Fail 1. Auxiliary power
circuitry malfunction
2. Detection circuit
malfunction
1. Check the auxil -
iary circuitry inside
the inverter
2. Check the detec -
tion circuit inside
the inverter
RED. ADC Iout_dc
Fail
1. Auxiliary power
circuitry malfunction
2. Detection circuit
malfunction
1. Check the auxil -
iary circuitry inside
the inverter
2. Check the detec -
tion circuit inside
the inverter
Efficiency Incon -
sistent
1. The calibration is
incorrect
2. Current feedback
circuit is defective
1. Check the accu -
racy of current and
power
2. Check the cur
-
rent feedback circuit
inside the inverter
Message Possible cause Action
Internal Comm
Fault_R
1. Red. CPU is
idleing
2. The communica
-
tion connection is
disconnected
1. Check reset and
crystal in Red. CPU
2. Check the con
-
nection between
Red. CPU and DSp
Internal Comm
Fault_D
1. DSP is idleing
2. The communica
-
tion connection is
disconnected
3. The communica -
tion circuit malfunc -
tion
1. Check reset and
crystal in DSP
2. Check the con
-
nection between
DSP and COMM
3. Check the com
-
munication circuit
Residual Current
Over Rating
1. PV array insula -
tion fault
2. Large PV array
capacitance
between Plus to
Ground or Minus to
Ground
3. Either side of
boost driver or
boost choke mal -
function
4. Detection circuit
malfunction
1. Check the insula -
tion of Solar inputs
2. Check the capac
-
itance (+ <-> GND
& - <-> GND), must
< 2.5uF. Install a
external transformer
if necessary
3. Check boost
driver & boost
choke
4. Check the detec
-
tion circuit inside
the inverter
Ground Fault 1. PV array insula -
tion fault
2. Large PV array
capacitance
between Plus to
Ground or Minus to
Ground or both.
3. Detection circuit
malfunction
1. Check the insula -
tion of Solar inputs
2. Check the capac
-
itance, dry PV panel
if necessary
3. Check the detec
-
tion circuit inside
the inverter
RCMU Circuit Fail 1. RCMU is discon -
nected
2. Detection circuit
malfunction
1. Check the RCMU
connection inside
the inverter
2. Check the detec -
tion circuit inside
the inverter
Relay Short 1. One or more
relays are sticking
2. The driver circuit
for the relay mal -
function
1. Replace the
defective relay(s)
2. Check the driver
circuit inside the
inverter
Relay Open 1. One or more
relays are abnormal
2. The driver circuit
for the relay mal -
function
3. The detection
accuracy is not cor -
rect for Vgrid and
Vout
1. Replace the
defective relay(s)
2. Check the driver
circuit inside the
inverter
3. Check the Vgrid
and Vout voltage
detection accuracy
Message Possible cause Action
Bus Unbalance 1. Not totally inde -
pendent or parallel
between inputs
2. PV Array short to
Ground
3. Driver for boost is
defective or discon-
nected
4. Detection circuit
malfunction
1. Check the inputs
connections
2. Check the PV
Array insulation
3. Check the driver
curcuit for boost
inside the inverter
4. Check the detec -
tion circuit inside
the inverter
Bus_P Over Volt
Rating
1. Driver for boost is
defective
2. Voc of PV array
is over 1000Vdc
3. Surge occurs
during operation
4. Detection circuit
malfunction
1. Check the driver
curcuit for boost
inside the inverter
2. Modify the solar
array setting, and
make the Voc less
than 1000Vdc
3. N/A
4. Check the detec
-
tion circuit inside
the inverter
Bus_N Over Volta
Rating
1. Driver for boost is
defective
2. Voc of PV array
is over 1000Vdc
3. Surge occurs
during operation
4. Detection circuit
malfunction
1. Check the driver
curcuit for boost
inside the inverter
2. Modify the solar
array setting, and
make the Voc less
than 1000Vdc
3. N/A
4. Check the detec
-
tion circuit inside
the inverter
Bus Volt Over Rat -
ing
1. Driver for boost is
defective
2. Voc of PV array
is over 1000Vdc
3. Surge occurs
during operation
4. Detection circuit
malfunction
1. Check the driver
curcuit for boost
inside the inverter
2. Modify the solar
array setting, and
make the Voc less
than 1000Vdc
3. N/A
4. Check the detec
-
tion circuit inside
the inverter
Output Current
Transient Over
1. Surge occurs
during operation
2. Driver for inverter
stage is defective
3. Switching device
is defective
4. Detection circuit
malfunction
1. N/A
2. Check the driver
circuit in inverter
stage
3. Check all switch
-
ing devices in
inverter stage
4. Check the detect
circuit inside the
inverter
AC curr Over rating Detection circuit
malfunction
Check the detect
circuit inside the
inverter
Message Possible cause Action
CT Current Sensor
Fail
1.Inverter choke
Fail
2.Output Filter Fail
3. Detection circuit
malfunction
1. Check Inverter
choke inductance.
2. Check output
filter capacitance.
3. Check the detec
-
tion circuit inside
the inverter
HW OOCP 1. WB1 WB2 mis -
connection.
2. Detection circuit
malfunction
1. Check the con -
nection of WB1 and
WB2.
2. Check the detec
-
tion circuit inside
the inverter
Zero Cross Circuit
Fail
The detection circuit
for synchronal sig -
nal malfunction
Check the detection
circuit for synchro -
nal signal inside the
inverter
Incompatibility Firmware version
incorrect
Update the firm -
ware
DC Curr Over
Rating
1. Switching device
in boost is defective
2. Driver for boost is
defective
3. Input current
detection circuit
malfunction
1. Check all switch -
ing device in boost
2. Check the driver
curcuit for boost
inside the inverter
3. Check input cur -
rent detection circuit
DC Curr Transient
Over
1. Switching device
in boost is defective
2. Driver for boost is
defective
3. Input current
detection circuit
malfunction
1. Check all switch -
ing device in boost
2. Check the driver
curcuit for boost
inside the inverter
3. Check input cur -
rent detection circuit
11.3 Maintenance
DANGER
Danger from hazardous voltage
Hazardous voltage is applied to the solar
power inverter during operation. Hazardous
voltage is still present 5 minutes after all
power sources have been disconnected.
► Never open the solar power inverter.
The solar power inverter contains no
components that are to be maintained
or repaired by the operator or installer.
Opening the cover will void the war -
ranty.
Ensure that the solar power inverter is not covered during
operation.
Regularly clean the solar power inverter to prevent soiling of
the housing.
If there are any damaged parts, please contact a qualified
technician to repair or replace the spare part.
Please clean the air outlets.