Danfoss FC-280 VLT Midi Drive Fan Replacement Instruction Manual

Danfoss FC-280 VLT Midi Drive Fan Replacement

Product Information

Specifications

• Enclosure Types: K1, K2, K3, K4, K5
• Ordering Numbers: 132B0351, 132B0352, 132B0353, 132B0371, 132B0372
• Tools Required: Flat-edged screwdriver, T10 tightening torques
• Minimum Waiting Time for Discharge: 4 minutes for K1 and K2, 15 minutes for K3

FAQ

• Q: What should I do if the warning LED indicator lights are off?
  • A: Even when the warning LED indicator lights are off, ensure to wait for the specified minimum waiting time before performing service or repair work to avoid potential hazards.
• Q: How can I ensure that the capacitors are fully discharged?
  • A: Use an appropriate voltage measuring device to confirm that the capacitors are fully discharged before handling the frequency converter.

The instructions provide information about fan replacement in the VLT® Midi Drive FC 280.
Only Danfoss-authorized, qualified personnel is allowed to repair this equipment. The personnel must be familiar with the instructions and safety measures described in the VLT® Midi Drive FC 280 Service Guide.

Items Supplied

Items supplied depend on the ordered code number and enclosure type of the frequency converter.

Ordering Numbers

Tools Required

• Screwdrivers:
  • Flat-edged
  • T10

Tightening torques

• 0.5–0.7 Nm (4.4–6.2 in-lb)

Safety Instructions

WARNING: DISCHARGE TIME

The frequency converter contains DC-link capacitors, which can remain charged even when the frequency converter is not powered. High voltage can be present even when the warning LED indicator lights are o. Failure to wait the specified time after power has been removed before performing service or repair work can result in death or serious injury.

• Stop the motor.
• Disconnect AC mains and remote DC-link supplies, including battery back-ups, UPS, and DC-link connections to other frequency converters.
• Disconnect or lock PM motor.
• Wait for the capacitors to discharge fully. The minimum waiting time is specified in Table 1.1.
• Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors are fully discharged.

Table 1.1 Discharge Time

Voltage [V]| Power range

[kW (hp)]

| Minimum waiting time

(minutes)

---|---|---
200–240| 0.37–3.7 (0.5–5)| 4
380–480| 0.37–7.5 (0.5–10)| 4
11–22 (15–30)| 15

Installation

Enclosure Sizes K1, K2, and K4

1. Grab the center handle on the fan and use a flatedged screwdriver to release the retaining lever.
2. Unplug the fan cable.
   • NOTICE: For VLT® Midi Drive FC 280, the fan cable has 3 wires.
3. Connect the new fan cable and click the new fan into place.

Enclosure Size K3

1. Remove the M3x6 screw in the bottom right corner.
2. Press the levers on each side of the fan and pull the fan outwards.
3. Unplug the fan cable.
   • NOTICE: For VLT® Midi Drive FC 280, the fan cable has 3 wires.
4. Install the new fan in reverse order.

Enclosure Size K5

1. Remove M4x50 screws in the bottom right and upper left corners.
2. Grab the center handle and pull the fan outwards.
3. Unplug the fan cable.
   • NOTICE: For VLT® Midi Drive FC 280, the fan cable has 3 wires.
4. Install the new fan in reverse order.

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

Contact

Danfoss A/S

• Ulsnaes 1
• DK-6300 Graasten
• vlt-drives.danfoss.com

Danfoss A/S © 11/2015 All rights reserved.

References

• Global AC drive manufacturer - Danfoss Drives | Danfoss

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