Inspection Area Inspection Points Corrective Action Checked
Cooling System Periodic Inspection
Cooling Fan,
Circulation Fan,
Control Board
Cooling Fan
• Check for abnormal oscillation or unusual noise.
• Check for damaged or missing fan blades.
• Replace as required.
• Refer to Drive Cooling Fans on page 353 for
information on cleaning or replacing the fan.
Heatsink
Inspect for dust or other foreign material collected on the
surface.
Use dry air to clear away foreign matter. Use a
pressure of 39.2 × 10
4
to 58.8 × 10
4
Pa
(4 - 6 kg•cm
2
).
Air Duct
Inspect air intake and exhaust openings. They must be
free from obstruction and properly installed.
• Visually inspect the area.
• Clear obstructions and clean air duct as required.
Display Periodic Inspection
Digital Operator
• Make sure data appears on the operator properly.
• Inspect for dust or other foreign material that may have
collected on surrounding components.
• Contact a Yaskawa representative if there is any
trouble with the display or keypad.
• Clean the digital operator.
7.2 Inspection
350
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
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