Yaskawa F7 Drive CIMR-F7U4185

The terminal card can be removed and mounted without disconnecting the control wiring.

Important: Always confirm that input power is removed and the Charge LED is not lit before removing or mounting the terminal card.

1. Remove the terminal cover on the Drive.

2. Remove the Digital Operator and front cover from the Drive.

3. Remove the wires connected to FE and/or NC on the terminal card.

4. Loosen the mounting screws on the left and right sides of the terminal card until they are free; It is not necessary to remove the mounting screws completely, as they are captive and self-rising.

5. Pull the terminal card out in the direction of the block arrow.

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 to avoid electric shock

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

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:

New fan installed successfully?

Enter the current hour meter reading of the machine

Sign off on the cooling fan replacement

Warning: This procedure requires trained personnel with PPE!

Standard replacement period is based on: 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