Yaskawa F7 Drive CIMR-F7U4090

Check ambient temperature, humidity, dust, harmful gas, and oil mist

Check for abnormal vibration or noise in the equipment

Inspect the main circuit and control voltage of the AC power supply

Check transformers and reactors for discoloration or noise

Inspect the Cooling Fans/Fins & Heatsink for abnormal fan noise and accumulation

Check the digital operator for LED functionality, monitor display values

Note: If the Drive is used under the following conditions, it may be necessary to inspect more often:

Select the conditions under which the Drive is used

Warning: This procedure requires trained personnel with PPE!

Replace the cooling fan(s) every 2 to 3 years (20,000 hours) with a new part.

Note: The standard replacement period is based on the following usage conditions:

Sign off on the cooling fan replacement

Warning: This procedure requires trained personnel with PPE!

Standard replacement period is based on the following usage conditions: Ambient temperature: Yearly average of 86°F / 30°C, Load factor: 80% maximum, Operating time: 12 hours maximum per day

DC bus capacitors need replacement?

PCB capacitors need replacement?

Soft charge contactor need replacement?

Upload a photo of the replaced parts

Sign off on the capacitors replacement

Warning: This inspection requires trained personnel with PPE!

Inspect conductors and wire connections for loose lugs, screws, wires, hot spots, corrosion, bent conductors, breakage, cracking, discoloration, and spacing

Inspect terminal blocks for looseness or damage

Check DC bus capacitors for leakage, ruptures, expansion, capacitance, and insulation resistance

Inspect relays and contactors for noise and contact discoloration

Check soft charge resistors for cracks and discoloration

Check control circuit operation, including speed reference voltage/current and I/O contact operation

Inspect the Cooling Fans/Fins & Heatsink for loose connectors

Check the digital operator for key functionality, and cleanliness

Warning: Ensure the three-phase power is disconnected and locked out before starting the inspection.

Motor is not vibrating or making unusual noises

No abnormal heat generation from the Drive or motor

Output current value shown on U1-03

Cooling fan in the Drive is operating normally

Warning: Do not touch terminals immediately after the power has been turned off. Doing so can result in electric shock.

All screws and bolts on external terminals, mounting bolts, and connectors are tightened