YASKAWA CIMR-JC4A0002BAA - Page 166

Table 6.2 Periodic Inspection Checklist
Inspection
Area
Inspection Points Corrective Action Checked
Main Circuit Periodic Inspection
General
• Inspect equipment for discoloration
from overheating or deterioration.
• Inspect
for
damaged or deformed parts.
• Replace damaged components as
required.
• The drive has few serviceable parts
and may require complete drive
replacement.
• Inspect for dirt, foreign particles, or dust
collection on components.
•
Inspect enclosure door seal if
present. Replace components if
cleaning is not possible.
• Use dry air to clear away foreign
matter. Use a pressure of:
39.2 x 10
4
to 58.8 x 10
4
Pa (4 - 6 kg
•cm
2
).
Conductors and
Wiring
• Inspect wiring and connections for
discoloration, damage, or heat stress.
• Inspect wire insulation and shielding
for wear.
•
Repair or replace damaged wiring.
Terminals
• Inspect terminals for stripped,
damaged, or loose connections.
• Tighten loose screws and replace
damaged screws or terminals.
Relays and
Contactors
• Inspect contactors and relays for
excessive noise during operation.
• Inspect coils for signs of overheating
such as melted or cracked insulation.
•
Check coil voltage for over or under
voltage conditions.
• Replace damaged removable relays
contactors or circuit board.
Braking
Resistors
• Inspect for discoloration of heat stress
on or around resistors.
• Minor discoloration may be
acceptable.
• If discoloration exists check for
loose connections.
Control Circuit Periodic Inspection
General
• Inspect terminals for stripped, damaged
or loose connections.
•
Check for tightness.
• 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.
LED Periodic Inspection
LEDs
• Make sure the LED lights correctly.
• Inspect for dust or other foreign
material that may have collected on
surrounding components.
•
Contact your Yaskawa
representative if there is any trouble
with the LED or keypad.
• Clean the LED.
Cooling System Periodic Inspection
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 170 for information on
cleaning or replacing the cooling fan.
6.2 Inspection
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide
165
6
Periodic Inspection & Maintenance
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