Trane TR200 Drive
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Check
Trane TR200 Drive Preventive Maintenance
Instructions
1. PM
Checklist
box
Preventative Maintenance
Step
Vacuum dust and dirt from heat sink
fins
Clean or replace as conditions require intake air filters (125 HP
constant
torque models, 150 HP variable torque models and larger have
filters
located behind the intake louver
panels)
Check ventilation fans for proper operation and clean as
needed.
Confirm VFD’s ventilation clearances have not been
obstructed
Check electrical connections and re-torque as needed. If possible,
perform
an IR thermal scan of the VFD’s power input and power
output.
Check line
voltage
Check motor & output phase
balance
Inspect DC buss capacitors (older
drives)
Record the VFD’s parameter settings using
MCT-10
Confirm the VFD doors and covers are in place and properly
closed
2. Clean the drive’s
interior.
a. Dirt coating drive circuit boards and other components can interfere with proper cooling
and
even provide a path for electricity to short out along unintended paths. This can cause
erratic
operation and possibly damage to drive
components.
b. Corroded electrical connections can cause excess heat build-up, short circuits, erratic
drive
operation, and even component
damage.
c. This should be done after the installation of the drives is complete and before power
is
applied to the drive. The main point here is to ensure that no metal filings or
other
installation-related dirt are inside the drive or its option
enclosure.
d. If the drive is installed in an area where a lot of construction work will be performed, it is
best
to keep the drive covered while it is not in operation. Of course, if it is being used, the
drive
must be uncovered so that cooling air can be freely supplied to it. After the construction
is
complete it will be important to clean the interior of the drive. Low pressure, clean, dry air
or
similar commercial products can be used to clean dirt off of circuit boards. While a
vacuum
cleaner can be used to collect falling dirt, it is important to ensure that circuit boards are
not
damaged by the use of a powerful vacuum cleaner on the boards. Inspect drive
connectors
for dirt or
corrosion.
e. In a normal environment, the drive’s interior should be inspected annually and cleaned,
if
necessary. In dirty environments, more frequent inspection is required. The level of
dirt
found inside the drive can be used to dictate the frequency of inspections and cleanings
that
is
required.
3. Clean air filters (if
any).
a. Many TR200 drives have no air filters. However, some sizes and enclosure styles do use
air
filters in conjunction with their fan cooling systems. For these drives it is important
to
periodically inspect and clean or replace the filter
element.
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