Yaskawa F7 Drive CIMR-F7U4185

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: 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).

Cooling fan power connectors removed from the gate drive board (3PCB).

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

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: 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: 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