Trouble Shooting And Maintenance; Trouble Shooting - DASS Tech SOLEAF DSP-3320i-ODS Manual For Use And Installation

DSP 3320i-ODS, DSP 3325i-ODS, DSP 3333i-ODS
User manual
7

Trouble shooting and maintenance

Outlines of this chapter
This topic describes how to perform daily maintenance and troubleshooting to ensure long-
term proper operation of the DASS TECH inverter.

7.1 Trouble shooting

This section contains information and procedures for solving possible problems with the
DASS TECH inverter.
In case of problem with inverter, check the following tips.
Check the warning fault messages or Fault codes on the inverter information panel. Record
it before doing anything further.
If inverter does not display any Fault, please check the following lists.
- Is the inverter located in a clean, dry, adequately ventilated place?
- Is the DC switch turned ON?
- Are the cables adequately sized and short enough?
- Are the input and output connections and wiring in good condition?
- Are the configuration settings correct for the particular installation?
- Are the display panel and the communications cable properly connected and undamaged?
Follow the steps below to view recorded problems:
Press "ESC" to enter the main menu in the normal interface. In the interface screen select
"Event List", then press "OK" to enter events.
EventList information
Table 7-1 Eventlist
EventList NO. EventList Name
ID01
GridOVP
ID02 GridUVP
ID03 GridOFP
ID04 GridUFP
EventList description solution
The power grid voltage is If the alarm occurs occasionally, the possible cause
too high is that the electric grid is abnormal occasionally.
DASS TECH inverter automatically returns to
normal operating status when the electric grid's back
to normal.
The power grid voltage is
If the alarm occurs frequently, check whether the
too low
grid voltage/frequency is within the acceptable
range. If no, contact DASS TECH technical support.
If yes, check the AC circuit breaker and AC wiring
of the DASS TECH inverter.
The power grid frequency is
If the grid voltage/frequency is within the acceptable
too high
range and AC wiring is correct, while the alarm
occurs repeatedly, contact DASS TECH technical
support to change the grid over-voltage, under-
voltage, over-frequency, under-frequency protection
The power grid frequency is
points after obtaining approval from the local
too low
electrical grid operator.
DSP 3320i-ODS, DSP 3325i-ODS, DSP 3333i-ODS
User manual
ID05
ID06
ID07-ID08
ID09
ID10
ID11
ID12
ID13
ID14
ID15
ID16
ID17
ID18
ID19
ID20
ID21
ID22
ID23
ID24
55 56
PVUVP Check whether too few PV modules are series
The input voltage is too low
connected in a PV string, thus the voltage(Vmp) of the
PV string is lower than the minimum operating
voltage of DASS TECH inverter. If yes, adjust the
number of series connected PV modules to increase
the voltage of the PV string to fit the input voltage
range of DASS TECH inverter. DASS TECH inverter
automatically returns to normal operating status after
correct adjustments.
Vlvrtlow Low voltage across Check the AC wiring connection to the electric grid, if it's
correct, please contact DASS TECH technical support.
Reserved
Reserved
PvOVP The input voltage is too Check whether too many PV modules are series connected in
a PV string, thus the voltage(Voc) of the PV string is higher
high
than the maximum input voltage ofDASS TECH inverter. If
yes, adjust the number of series connected PV modules to
decrease the voltage of the PV string to fit the input voltage
range of DASS TECH inverter. DASS TECH inverter
automatically returns to normal operating status after correct
adjustments.
IpvUnbalance Input current is not Check the input mode(parallel mode/ independent
balanced mode) setting of DASS TECH inverter according to
Section 4.5 of this user manual.
PvConfigSetWrong Incorrect input mode
If the fault occurs occasionally, the possible cause is
GFCIFault GFCI Fault
that the external circuits are abnormal occasionally.
DASS TECH inverter automatically returns to
normal operating status after the fault is rectified.
If the fault occurs frequently and lasts a long time,
check whether the insulation resistance between the
PV array and earth(ground) is too low, then check
the insulation conditions of PV cables.
GridFault Phase sequence errors If the alarm occurs occasionally, the possible cause
is that the electric grid is abnormal occasionally.
DASS TECH inverter automatically returns to
normalvoperating status when the electric grids back
to normal.
If the alarm occurs frequently, check whether the
grid voltage/frequency is within the acceptable
range. If no, contact DASS TECH technical support.
If yes, check the AC circuit breaker and AC wiring
of the DASS TECH inverter.
HwBoostOCP
Ihe input current is too Check whether the input current is higher than the
high,and has happen maximum input current of DASS TECH inverters,
hardware protection then check the input wiring, if both are correct, please
contact DASS TECH technical support.
HwAcOCP The grid current is too
ID15-ID24 are internal faults of
high,and has happen
inverter, turn OFF the "DC switch", wait for 5
hardware protection
minutes, then turn ON the "DC switch". Check
The grid current is too high
AcRmsOCP whether the fault is rectified. If no, please contact
DASS TECH technical support.
HwADFaultIGrid The grid current sampling
error
HwADFaultDCI The DCI sampling error
HwADFaultVGrid The grid voltage sampling
error
GFCIDeviceFault The GFCI sampling error
MChip_Fault
The master chip fault
HwAuxPowerFault The auxiliary voltage error
The bus voltage sampling
BusVoltZeroFault
error
The Output current is not
IacRmsUnbalance
balanced
Reserved
DASS TECH