YASKAWA GA700 Technical Manual page 338

7.2 Inspection
Inspection
Inspection Points
Area
• Inspect terminals for stripped,
damaged, or loose connections.
General
• Make sure all terminals have been
properly tightened.
• Check for any odor, discoloration, and
rust.
• Make sure connections are properly
Circuit Boards fastened.
• Make sure that no dust or oil mist has
accumulated on the surface of the
board.
Inspection
Inspection Points
Area
• Check for abnormal oscillation or
unusual noise.
Cooling Fans
• Check for damaged or missing fan
blades.
• Inspect for dust or other foreign
material collected on the surface.
Heatsink
• Inspect for dirt.
Inspect air intake, exhaust openings and
Air Duct that there are no foreign materials on the
surface.
Inspection
Inspection Points
Area
• Make sure data appears on the display
properly.
General
• Inspect for dust or other foreign
material that may have collected on
surrounding components.
338
Table 7.4 Control Circuit Periodic Inspection Checklist
• Tighten loose screws.
• Replace damaged screws or terminals.
• If terminals are integral to a circuit board, then board or
drive replacement may be required.
• Fix any loose connections.
• If an antistatic cloth or vacuum plunger cannot be used,
replace the board.
• Do not use any solvents to clean the board.
• Remove foreign particles and dust with a vacuum cleaner to
avoid touching parts.
• The drive has few serviceable parts and may require
complete drive replacement.
Table 7.5 Cooling System Periodic Inspection Checklist
Clean or replace the fans as required.
Remove foreign particles and dust with a vacuum cleaner to
avoid touching parts.
Clear obstructions and clean air duct as required.
Table 7.6 Keypad Periodic Inspection Checklist
• Contact Yaskawa or your nearest sales representative if you
have any problems with the display or key.
• Clean the keypad.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Corrective Action
Corrective Action
Corrective Action
Checked
Checked
Checked