24
6
Troubleshooting
F
Fa
au
ulltt
P
Po
ossssiib
blle
e C
Ca
au
usse
e
C
Co
orrrre
ec
cttiivve
e M
Me
ea
assu
urre
ess
According to the
background monitoring
device, some device in the
PV array is abnormally
disconnected.
1. RS485 cable is
abnormal.
1. Measure the voltage between
RS485–A and RS485–B with a
multimeter, and check whether
the voltage is about 5V.
2. There are
repeated device
addresses in the PV
array.
2. Check whether there are
repeated device addresses.
3. Parameters of
Logger3000 are
incorrectly
configured.
3. Check, through the WEB
interface “D
De
evviic
ce
e
M
Ma
an
na
ag
ge
em
me
en
ntt” -＞ “D
De
evviic
ce
e
O
Op
pe
erra
attiio
on
n”, whether
corresponding port of the device
is set to "PLC".
4. Master and slave
node modules of the
PLC are abnormal.
4. Check whether the indicator
D12 keeps steady red while the
indicator D8 flickers green. If not,
the modules are abnormal.
5. Other causes
If the fault persists, please
contact SUNGROW.
According to the
background monitoring
device, some device in the
PV array is unstably
connected.
1. There are
repeated device
addresses in the PV
array.
1. Check whether there are
repeated device addresses.
2. Parameters of
Logger3000 are
incorrectly
configured.
2. Check, through the WEB
interface “D
De
evviic
ce
e
M
Ma
an
na
ag
ge
em
me
en
ntt” -＞ “D
De
evviic
ce
e
O
Op
pe
erra
attiio
on
n”, whether
corresponding port of the device
is set to "PLC".
3. Other causes
If the fault persists, please
contact SUNGROW.