Yaskawa F7 Drive CIMR-F7U4055

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:

Upload a photo of the new cooling fan installed

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

Check for dust, harmful gas, and oil mist

Check for abnormal vibration or noise in the equipment

Main circuit voltage of the AC power supply

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

Warning: Turn off the input power before removing and installing the heatsink cooling fan assembly.

Terminal cover, Drive cover, Digital Operator, and front cover removed from the front of the Drive.

Control PCB bracket removed and all cables disconnected from the Control PCB.

Cooling fan power connector removed from the fan board (13 PCB) positioned near the top of the Drive.

Cooling fan power connectors removed from the gate drive board (3PCB) positioned at the back of the Drive.

Fan assembly screws removed and fan assembly pulled out from the Drive.

Cooling fan(s) removed from the fan assembly.

Mounting the Heatsink Cooling Fan Assembly

New cooling fan attached to the mounting bracket.

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.