Troubleshooting and Maintenance
the protecting parameters. See
“
7.9.6 Set Protecting
65
Type of fault
Troubleshooting
Vac-high
4. If local grid condition exceeds AC demands of inverter, Reset
Parameter
”
.
And if local grid voltage exceeds the upper limit value of
“
Vgrid-max
”
, or if local grid voltage is under the lower limit value
of
“
Vgrid-min
”
, please contact your local electricity company to
adjust the grid voltage.
5. If the fault can not be solved, please contact Jalpower. See
“
10.2 Contact Us
”
.
F-fault
1. Disconnect AC circuit breaker.
2. Rotate DC Switch to
“OFF”
.
3. Check the frequency of grid side.
4. If local grid condition exceeds AC demands of inverter, Reset
the protecting parameters. See
“
7.9.6 Set Protecting Parameter
”
.
And if local grid frequency exceeds the upper limit value of
“
Fgrid-max
”
, or if local grid frequency is under the lower limit
value of
“
Vgrid-min
”
, please contact your local electricity
company to adjust the grid frequency.
5. Close AC circuit breaker.
6. If the fault can not be solved, please contact Jalpower. See
“
10.2 Contact Us
”
.
IPM-flt
If this malfunction occurs, the reasons are very complicated.
1. Disconnect AC circuit breaker.
2. Rotate DC Switch to
“OFF”
position.
3. Check the temperature of radiator. If its temperature exceeds
80
℃，
Restart the inverter until it recovers to environment
temperature.
4. Recover DC
switch to “O
N
” position
.
5. Close AC circuit breakeres.
7. If this malfunction happens again, please contact Jalpower.
See
“
10.2 Contact Us
”
.
No-grid
1. Check whether AC circuit breaker is off.
2. Check whether AC cables are all firmly connected.
3. Check whether grid is cut off.
4. If all conditions are OK and this malfunction still occurs in the
LCD screen, please contact Jalpower. See
“
10.2 Contact Us
”
.