Maintenance; Anti-Pid Function; Fan Maintenance - CanadianSolar CSI-185K-T600GL03-U Installation And Operation Manual

8. Maintenance

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 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.

8.1 Anti-PID Function

Canadian Solar Three phase Inverters integrates optional Anti-PID module and it can recover
the PID effect during night thus protect the PV system from degradation.
PV+
PV-
The Anti-PID module repairs the PID effect of the PV model at night. When operating,
the inverter LCD screen displays " PID-repairing " information, and the red light is on.
The Anti-PID function is always ON when AC is applied.
If maintenance is required and turn off the AC switch can disable the Anti-PID function.
WARNING :
The PID function is automatic. When the DC bus voltage is lower than 260Vdc,
the PID module will start creating 650 Vdc between PV- and ground.
No need any control or settings
.58.
Inverter
U
V
W
V+
PID
GND
Figure 8.1
NOTE:
If you need to maintain the inverter at night, please turn off the AC switch first,
then turn off the DC switch, and wait 20 minutes before you do other operations.

8.2 Fan Maintenance

If the fan does not work properly, the inverter will not be cooled effectively.
and it may affect the effective operation of the inverter .
Therefore, it is necessary to clean or replace a broken fan as follows:
1. Turn off the "Grid ON/OFF" switch on the inverter LCD.
2. Disconnect the AC power.
3. Turn the DC switch to "OFF" position.
4. Wait for 15 minutes at least.
5. Remove the 2 screws on the fan plate.
6. pull out the fan module slowly and unplug the power plug of the fan after pulling out
around 150mm.
7. Clean and replace the broken fan.
8.Connect the electrical wire and reinstall the fan. Restart the inverter.
8. Maintenance
Figure 8.2
.59.