Yaskawa F7 Drive CIMR-F7U4220

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!

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:

Enter the model of the new cooling fan

Sign off on the cooling fan 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: This procedure should be performed by a trained technician

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

New control power fuse installed

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:

Check if any of the following conditions apply