Danfoss VACON NXP IP00 Operating Manual page 114

VACON® NXP IP00 Drive Modules
Operating Guide
Component Inspec-
tion in-
terval
(1)
Drive Cooling 1 year
capacity
Capacitors, DC 1 year
link
Cleaning and 1 year
Filters
Fans 1 year
Grounding 1 year
PCB 1 year
Power cables 1 year
and wiring
Vibration 1 year
Insulator gas- 1 year
kets
Spare Parts
Spare parts 1 year
Exchange units 1 year
and units stor-
ed for long pe-
riods before
commissioning
Defined as the time after the commissioning/start-up or the time from the previous inspection.
1
Defined as the time after the commissioning/start-up or the time from the previous service schedule actions.
2
114 | Danfoss A/S © 2023.09
Service Preventive maintenance actions
sched-
ule
(2)
– Check for blockages or constrictions in the air passages of the cooling channel. The
heat sinks must be free of dust and condensation.
8–15+ The expected lifetime of the capacitors is dependent on the loading profile of the ap-
years plication and the environmental temperature. For applications with heavy loads in de-
manding environments or high ripple current, replace electrolytic capacitors every 8
years. If within specification of the drive type, replace every 10–15+ years. Only trained
service personnel may perform this action.
– The interior of the enclosure should be cleaned annually, and more frequently if nec-
essary. The level of dust in the filter or inside the enclosure is an indicator for when the
next cleaning or filter replacement is required.
5–10 Inspect the condition and operational status of all cooling fans. With the power off, the
years fan axis should feel tight, and spinning the fan with a finger, the rotation should be
almost silent and not have abnormal rotation resistance. When in RUN mode, fan vi-
bration, excessive or strange noise is a sign of the bearings wearing, and the fan
should be replaced.
– The drive system requires a dedicated ground wire connecting the drive, the output
filter, and the motor to the building ground. Check that the ground connections are
tight and free of paint or oxidation. Daisy-chain connections are not allowed. Braided
straps are recommended if applicable.
10–12 Visually inspect the PCBs for signs of damage or degrading due to aging, corrosive en-
years vironments, dust, or environments with high temperatures. Only trained service per-
sonnel may perform the inspection and service action.
– Check for loose connections, aging, insulation condition, and proper torque to the
drive connections. Check for proper rating of fuses and continuity check. Observe if
there are any signs of operation in a demanding environment. For example, discolora-
tion of the fuse housing may be a sign of condensation or high temperatures.
– Check for abnormal vibration or noise coming from the drive to ensure that the envi-
ronment is stable for electronic components.
10–15 Inspect the insulators for signs of degradation due to high temperature and aging. Re-
years placement is based on findings or done at the same time as DC capacitor replacement.
Only trained service personnel may perform this action.
2 years Stock spares in their original boxes in a dry and clean environment. Avoid hot storage
areas. Electrolytic capacitors require reforming as stated in the service schedule. The
reforming is performed by trained service personnel. See
tors.
2 years Visually inspect for signs of damage, water, high humidity, corrosion, and dust within
the visual field of view without disassembly. The exchange units with mounted elec-
trolytic capacitors require reforming as stated in the service schedule. The reforming is
performed by trained service personnel. See
Maintenance
10.2 Reforming the Capaci-
10.2 Reforming the Capacitors.
AQ351737303996en-000201 / DPD00888