YASKAWA CIPR-GA50C series Technical Manual page 293

Inspection Area
• Examine equipment for discoloration from too
much heat or deterioration.
• Examine for damaged parts.
General
Examine for dirt, unwanted particles, or dust on
components.
• Examine wiring and connections for discoloration
or damage. Examine wiring and connections for
Conductors and
discoloration from too much heat.
Wiring
• Examine wire insulation and shielding for
discoloration and wear.
Examine terminals for stripped, damaged, or loose
Terminal Block
connections.
• Examine contactors and relays for too much noise
Electromagnetic
during operation.
Contactors and
• Examine coils for signs of too much heat, such as
Relays
melted or broken insulation.
Dynamic Braking Examine the insulation for discoloration from too
Option much heat.
• Examine for leaks, discoloration, or cracks.
Electrolytic
• Examine if the cap has come off, if there is
Capacitor
swelling, or if there are leaks from broken sides.
Diodes, IGBT Examine for dust or other unwanted material
(Power Transistor) collected on the surface.
Inspection Area
Operation Check Check for increased vibration or unusual noise.
Inspection Area
• Examine terminals for stripped, damaged, or
loose connections.
General
• Make sure that all terminals have been correctly
tightened.
• Check for odor, discoloration, or rust.
• Make sure that all connections are correctly
Circuit Boards fastened.
• Make sure that the surface of the circuit board
does not have dust or oil mist.
Inspection Area
• Check for unusual oscillation or unusual noise.
Cooling fan
• Check for damaged or missing fan blades.
• Examine for dust or other unwanted material
collected on the surface.
Heatsink
• Examine for dirt.
Examine air intake, exhaust openings and make sure
Air Duct
that there are no unwanted materials on the surface.
Inspection Area
• Make sure that the keypad shows the data
correctly.
General
• Examine for dust or other unwanted material that
collected on components in the area.
YASKAWA SIEPC71061753A GA500 Technical Manual
Table 8.2 Main Circuit Periodic Inspection Checklist
Inspection Points
• Replace damaged components as necessary.
• The drive does not have many serviceable parts and it could be necessary to
• Examine enclosure door seal.
• Use a vacuum cleaner to remove unwanted particles and dust without
• If you cannot remove unwanted particles and dust with a vacuum cleaner,
Repair or replace damaged wiring.
• Tighten loose screws.
• Replace damaged screws.
• Check coil voltage for overvoltage or undervoltage conditions.
• Replace broken relays, contactors, or circuit boards that you can remove.
If there is discoloration in the option, check to make sure that there is not damage
to the wiring. A small quantity of discoloration is not a problem.
The drive does not have many serviceable parts and it could be necessary to
replace the drive.
Use a vacuum cleaner to remove unwanted particles and dust without touching
the components.
Table 8.3 Motor Periodic Inspection Checklist
Inspection Points
Stop the motor and contact approved maintenance personnel as necessary.
Table 8.4 Control Circuit Periodic Inspection Checklist
Inspection Points
• Tighten loose screws.
• Replace damaged screws or terminals.
• If terminals are integral to a circuit board, it could be necessary to replace the
• Tighten loose connections.
• Use a vacuum cleaner to remove unwanted particles and dust without
• If you cannot remove unwanted particles and dust with a vacuum cleaner,
• Do not use solvents to clean the board.
• The drive does not have many serviceable parts and it could be necessary to
Table 8.5 Cooling System Periodic Inspection Checklist
Inspection Points
Clean or replace the fans as necessary.
Use a vacuum cleaner to remove unwanted particles and dust without touching
the components.
Clear blockages and clean air duct as necessary.
Table 8.6 Keypad Periodic Inspection Checklist
Inspection Points
• If you have problems with the display or the keys, contact Yaskawa or your
• Clean the keypad.
Corrective Action
replace the drive.
touching the components.
replace the components.
Corrective Action
Corrective Action
control board or the drive.
touching the components.
replace the components.
replace the drive.
Corrective Action
Corrective Action
nearest sales representative.
8.2 Inspection
Checked
Checked
Checked
Checked
8
Checked
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