Schaffner ECOsine, Maintenance Manual

Page: 26 / 66

26 ECOsine
®
active Harmonic Filters
– Maintenance Manual for FN3420-200-690-3
4.3 Replacement Instruction
Attention!
Before starting to work on the device, ensure that it is switched of,
disconnected from the grid and capacitors are discharged
4.3.1 Check operation of main fan and DC-Bus fan
and clean fan guards
1. Tools List
TOOLS LIST
1. Glove
2. Brush
3. Mask
4. Cleaning paper
5. Alcohol
6. Water
Tips:
Prefer to have vacuum cleaner
2. Work Instruction
– Dismantling process
Check with parameter group P1XX Measured
values / No.182 Enclosure fan 3, Check the
speed (rpm) of fan 3.
I
n case rpm stays on “0”, then replace it
according to the instruction <<Replace DC-
LINK fan>>
Tips: for main fan only do physically check if
you feel some moving air