YASKAWA V1000 Series Installation & Start-Up Manual page 275

Inspection
Area
Operation • Check for increased vibration or
Check abnormal noise.
• Check for abnormal oscillation or
unusual noise.
Cooling Fan
• Check for damaged or missing fan
blades.
• Inspect for dust or other foreign material
Heatsink
collected on the surface.
• Inspect air intake and exhaust openings.
Air Duct They must be free from obstruction and
properly installed.
• Inspect terminals for stripped, damaged
General or loose connections.
• Check for tightness.
• Inspect for unusual discoloration,
burning or strange odor, noticeable rust
Printed Circuit
or corrosion, proper seating of
Boards
connectors, dust, oil, or other
contamination.
Electrolytic • Inspect for leakage, discoloration, or
Capacitors cracks.
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Inspection Points
Motor Periodic Inspection
Cooling System Periodic Inspection
Control Circuit Periodic Inspection
Corrective Action
• Stop the motor and contact qualified
maintenance personnel as required.
• Replace as required.
• Refer to Drive Cooling Fans on
page 278 for information on cleaning
or replacing the cooling fan.
• Use dry air to clear away foreign
matter.
• Use a pressure of
39.2 ξ 10 to 58.8 ξ 10
4 4 Pa
(4 - 6 kg•cm 2 ).
• Visually inspect the area.
• Clear obstructions and clean air duct
as required.
• Tighten loose screws and replace
damaged screws or terminals.
• If terminals are integral to a circuit
board then board or drive replacement
may be required.
• Re-seat loose connectors.
• Replace PCBs if wiping or vacuuming
with anti-static vacuum cannot clean
the PCB.
• Do not use solvents on PCBs.
• Use dry air to clear away foreign
matter. Use a pressure of
39.2 ξ 10 to 58.8 ξ 10
4 4 Pa
(4 - 6 kg •cm 2 ).
• The drive has few serviceable parts
and may require complete drive
replacement.
6.2 Inspection
Checked
275
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