Fan Test; Dsp Update; Compensation Set; I/V Curve - CanadianSolar CSI-25K-T220GL03-E Installation And Operation Manual

7. Normal operation

7.5.14 FAN Test

This section is applicable to maintenance personnel only.
Selecting "Fan Test" displays the sub-menu shown below:
YES=<ENT> NO=<ESC>
Fan Test is a factory test function. Press the ENTER key to start the test.
Press the ESC key to return to the previous menu.

7.5.15 DSP Update

The function is used for update the DSP.
Master DSP Update
Slave DSP Update
Figure 7.34 DSP Update

7.5.16 Compensation Set

This function is used to calibrate inverter output energy and voltage. It will not impact the
energy count for inverter with RGM.
Two sections are included: Power Parameter and Voltage Parameter.
The screen shows:
YES=<ENT> NO=<ESC>
Power para:1.000
Figure 7.35 Voltage Parameter
Press the Down key to move the cursor.
Press the Up key to change the digit.
Please press the Enter to save the setting and press the ESC key to return to the previous
menu.
This setting is used for grid operators, do not change this setting unless
specifically instructed to.
.56.
Are you sure?
Figure 7.33
7. Normal operation

7.5.17 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 7.36 I/V Curve
7.5.17.1 Set I/V Curve
This setting can set the scanning voltage start point and the voltage interval.
Figure 7.37 Set I/V Curve
Start_V: The start voltage of the I/V scan. (Adjustable from 100V-1100V)
Interval_V: The scanning voltage interval.(Adjustable from 001V-100V)
In total, 60 data points can be scanned.
7.5.17.2 I/V Curve Scan
Press "ENT" to start the I/V curve scan.
Figure 7.38 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 7.39 I/V Curve Scan (2)
Figure 7.40 I/V Curve Scan (3)
850V
010V
Scanning...01
9.56A
9.44A
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