Maintenance; Preventive Maintenance Recommendations - Danfoss iC7-60EA3N05-206A Operating Manual

iC7-Automation Air-cooled Enclosed Drives
Operating Guide

9 Maintenance

9.1 Preventive Maintenance Recommendations

Generally, all technical equipment, including Danfoss AC drives need a minimum level of preventive maintenance. Regular mainte-
nance is recommended to ensure trouble-free operation and long life of the drive. It is also recommended, as a good service prac-
tice to record a maintenance log with counter values, date, and time describing the maintenance and service actions.
Danfoss recommends the following inspections and service intervals for air-cooled drive/system.
The service schedule for part replacements can vary depending on operation conditions. Under specific conditions, the combina-
tion of stressful operating and environment conditions work together to reduce the lifetime of the components significantly.
These conditions can include, for example, extreme temperature, dust, high humidity, hours of use, corrosive environment, and
loading.
For operation in stressful conditions, Danfoss offers the DrivePro
lifetime and increase the performance of the product with scheduled maintenance including customized part replacements. Drive-
Pro services are tailored to the specific application and operating conditions.
®
Table 27: Maintenance Schedule for Air-cooled Drives
Component Inspec-
tion in-
terval
(1)
Installation
Visual drive in- 1 year
spection
Auxiliary 1 year
equipment
EMC considera- 1 year
tion
Cable routing 1 year
Control wiring 1 year
Proper clearan- 1 year
ces
Seals condition 1 year
Corrosive envi- 1 year
ronments
Drive
Danfoss A/S © 2023.09
N O T I C E
Service Preventive maintenance actions
sched-
ule
(2)
– Check for the unusual, for example, for signs of overheating, aging, corrosion, and for
dusty and damaged components.
According Inspect equipment, switchgear, relays, disconnects or fuses/circuit breakers. Examine
to manu- the operation and condition for possible causes of operational faults or defects. The
facturer continuity check on fuses is performed by trained service personnel.
recom-
menda-
tions
– Inspect the installation wiring regarding the electromagnetic capability and the sepa-
ration distance between control wiring and power cables.
– Check for parallel routing of motor cables, mains wiring, and signal wiring. Parallel
routing must be avoided. Avoid routing cables through free air without support.
Check for aging and wearing of the cable insulation.
– Check for tightness, damaged or crimped wires or ribbon wires. The connections
should be terminated correctly with solid crimped ends. The use of shielded cables
and grounded EMC plate, or a twisted pair is recommended.
– Check that the required external clearances for proper airflow for cooling are followed
according to the frame designation and drive type of the drive. For clearances, refer to
the local design regulations.
– Check that the seals of the enclosure, the covers, and the cabinet doors are in good
condition.
– Conductive dust and aggressive gases, such as sulphide, chloride, salt mist, and so on,
can damage the electrical and mechanical components. Air filters will not remove air-
borne corrosive chemicals. Act based on findings.
Preventive Maintenance service. DrivePro
®
AQ330347384398en-000201 / 139Z8096 | 65
Maintenance
services extend the
®