54
IItte
em
m
M
Me
etth
ho
od
d
IIn
ntte
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all
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
Wait at least 15 minutes after the PCS discharge completely since the DC bus
contains capacitance. Before cleaning, make sure, with multimeter, the PCS
internal is discharged completely to avoid electric shock.
Almost all maintenance work needs to remove the internal protective grid
during maintenance. Make sure to reassembly the grid and fasten all the screws
after the maintenance work.
Make sure all bolts are securely fixed.
The frequency of maintenance operations could be increased according to
the environmental conditions of the place where the PCS is suited, plant
capacity and on-site situations.
8.3
Filter Checking and Cleaning
1
Read the safety instructions carefully.
2
Open the cabinet door.
3
Check the air filter. If it needs to be replaced, remove it with a screwdriver. Please
notice the direction of the filter cotton.
4
Check the cabinet cleanness. If necessary, clean the cabinet with soft rag or
vacuum cleaner.
5
Close the cabinet door.
Operation Manual