Operating Instructions Z-D-15/35/55E-..
Maintenance and check of hardware
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L-BAL-E321-GB 2021/11 Index 002
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7 Maintenance and check of hardware
7.1
What this chapter contains
This chapter contains instructions for predictive maintenance of the active harmonic filter.
7.2
Periodicity of maintenance
When installed in an appropriate environment the active harmonic filter from ZIEHL-ABEGG
required minimal maintenance. The recommended maintenance is listed below.
Check
Task
Method
E
nv
iro
nm
e
nt
c
on
di
tio
ns
Check of ambient temperature, humidity,
vibrations and for absence of dust, gas, oil
mist and water drops
Optical check and measurment
of the parameters
Ensure that no tools or other potentially
dangerous components have been placed
nearby
Optical check
V
ol
tag
e
Measure voltage in power and control circuits
Measurement with multimeter
S
up
pl
y
l
in
es
Check of system and cabinet
Check for loosen screws
Check of absence of sparks,
damages, dark colour due to
overheating or aging of
isolation
Ensure that no dust or dirt is
present
Cool
in
g s
y
s
tem
F
an
Check for abnormal sound emission or
vibrations
Optical check or estimation of
operation time based on
maintenance files
Check for loosen screws
Fix screws
Check of absence of dark colour due to
overheating or aging
Optical check or estimation of
operation time based on
maintenance files
A
ir d
uc
t
Check for debris in the cooling system
Optical check
