Rockwell Automation 6012DB PowerFlex Medium Voltage Variable Frequency Drive - Manual (Page 78)

78 Rockwell Automation Publication 6000-UM001B-EN-P - October 2014
Chapter 5 Preventative Maintenance and Component Replacement
Daily Inspection
Check the following items during normal operation of the drive:
• abnormal noise or vibration in the drive or motor
• abnormal temperature in the drive or motor
• ambient temperature in the control room above nominal
• accumulation of dust or particulate on control room floor or surfaces
• abnormal load current above nominal
Regular Maintenance Intervals
The annual maintenance requirements are summarized on page 123 as a
guideline. Detailed procedures referred to in the Preventative Maintenance
Schedule are described beginning on page 81 .
Medium Voltage Motor control equipment should be inspected periodically.
Inspection intervals should be based on environmental and operating conditions
and adjusted as indicated by experience. An initial comprehensive inspection,
within 3 to 4 months after installation, is suggested. Refer to the following
standards for general guidelines for setting-up a periodic maintenance
program.For countries following NEMA standards, refer to National Electrical
Manufacturers Association (NEMA) Standard No. ICS 1.1 (Safety Guidelines
for the Application, Installation, and Maintenance of Solid-Sate Control) for
MV Drives and ICS 1.3 (Preventive Maintenance of Industrial Control and
Systems Equipment) for MV Controllers. For countries following IEC standards,
refer to IEC 61800-5-1 Sec. 6.5 for MV Drives and IEC 60470 Sec. 10, IEC
62271-1 Sec. 10.4 for MV Controllers.
If inspection reveals that dust, dirt, moisture or other contamination has reached
the control equipment, the cause must be eliminated. This could indicate
unsealed enclosure openings (conduit or other) or incorrect operating
procedures. Replace any damaged or embrittled seals, and repair or replace any
other damaged or malfunctioning parts. Replace dirty, wet, or contaminated
control devices unless they can be cleaned effectively by vacuuming or wiping.
IMPORTANT Compressed air is not recommended for cleaning because it may displace dirt,
dust, or debris into other parts or equipment, or damage delicate parts.