Sungrow SG500MX User Manual

Operation Manual 9 Routine Maintenance
43
Item Method Interval
Save software
data
 Read out SolarInfo Logger data;
 Save running data, parameters and logs to a disk or
a file;
 Check each parameter setting;
 Update software
Once a month
System general
running status
and
environment
 Check the inverter for visible damages or
deformation;
 Check the inverter for any abnormal noise during
running;
 Check each parameter of the inverter during
normal operation;
 Check the principal components;
 Check if the enclosure temperature is normal with
the thermal imager;
 Check the air inlet and outlet;
 Check the ambient humidity, dust and air inlet
filter;
Notice! Check the air inlet and outlet. The equipment
may be damaged by overheating.
Every six months
System cleaning
 Check whether the circuit board and the
component are clean;
 Check the temperature and dust of the heat-sink.
Use vacuum cleaner to clean the module if necessary;
 Replace the air filter.
From every six
months to annually
depending on the
dust deposits.
Power circuit
connection
 Check whether the power cable connections are
loose. Retighten them with the torque specified in
the manual if necessary;
 Check if the power cables and control cables,
especially the surface in contact with the metal are
damaged;
 Check if the wrap belt of the connection terminals
is strip-off.
Six months after
commissioning for
the first time and
then once every six
month to a year
Terminal and
cable
connection
 Check whether the screws of the control terminals
are loose. Refasten them with screwdriver if
necessary;
 check whether the terminals of the main circuit are
in poor contact and whether the screws are hot;
 check if the connection busbar or screws are
discoloring.
 Visual check the wiring copper bus or bolt for
discoloration;
Once per year
Fan
maintenance
and
replacement
 check if there is crack in the fan blade;
 Check if there is abnormal noise during the
running of the fan;
 Replace the fan if necessary.
Once per year
Device
maintenance
 routine check of the corrosion of the metal
components (once six months)
 annually check the contactors (auxiliary switches
and micro-switches) to ensure the optimal operation;
 Check the running parameters (Voltage and
insulation especially)
From every six
months to annually
Safety function
 Check the emergency stop button and the LCD
stop function;
 Simulation shutdown and check the shutdown
signal communication signal;
 Check the warning labels and other markings for
damage or unclearness. Replace them if necessary.
From every six
months to annually
Software
maintenance
 Optimize software
 Check each parameter setting
From every six
months to annually

Sungrow SG500MX Specifications

General

Brand	Sungrow
Model	SG500MX
Category	Inverter
Language	English