Maintenance - CanadianSolar CSI-25K-T400 Series Installation And Operation Manual

7. Operation
7.5.16 I/V Curve
This function is used to scan the I/V characteristic curves of each PV strings.
Set I/V Curve
I/V Curve Scan
Figure 7.23 I/V Curve
7.5.16.1 Set I/V Curve
This setting can set the scanning voltage start point and the voltage interval.
Figure 7.24 Set I/V Curve
Start_V: The start voltage of the I/V scan. (Adjustable from 300V-1000V)
Interval_V: The scanning voltage interval.(Adjustable from 1-100V)
In total, 60 data points can be scanned.
7.5.16.2 I/V Curve Scan
Press "ENT" to start the I/V curve scan.
Figure 7.25 I/V Curve Scan (1)
After it is completed, the screen will display "Scan OK" and then enter the following section.
Select String No.: 01
Figure 7.26 I/V Curve Scan (2)
Figure 7.27 I/V Curve Scan (3)
.36.
850V
010V
Scanning...01
9.56A
9.44A
Canadian Solar Three Phase Inverter does not require any regular maintenance. However,
cleaning the dust on heat-sink will help the inverter to dissipate the heat and increase its life
time. The dust can be removed with a soft brush.
CAUTION:
Do not touch the inverter's surface when it is operating. Some parts of the
inverter may be hot and cause burns. Turn off the inverter (refer to Section
6.2) and wait for a cool-down period before before any maintenance or
cleaning operation.
The LCD and the LED status indicator lights can be cleaned with a damp cloth if they are too
dirty to be read.
NOTE:
Never use any solvents, abrasives or corrosive materials to clean the inverter.
9. Troubleshooting
The inverter is designed in accordance with the most important international grid-tied
standards and safety and electromagnetic compatibility requirements. Before delivering to
the customer, the inverter has been subjected to several tests to ensure its optimal operation
and reliability.
In case of failure, the LCD screen will display an alarm message. In this case, the inverter
may stop feeding into the grid. The failure descriptions and their corresponding alarm
messages are listed in Table 9.1:

8. Maintenance

.37.