Danfoss VLT Midi Drive FC 280 User manual

The instructions provide information about fan replacement in
the VLT
®
Midi Drive FC 280.
Only Danfoss authorized, qualied 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 ordered code number and
enclosure type of the frequency converter.
Ordering Numbers
Enclosure Power range [kW (hp)] Ordering number
K1 0.37–2.2 (0.5–3.0) 132B0351
K2 3.0–5.5 (4.0–7.5) 132B0352
K3 7.5 (10) 132B0353
K4 11–15 (15–20) 132B0371
K5 18.5–22 (25–30) 132B0372
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
specied 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 specied in Ta ble 1 .1 .
•
Before performing any service or repair work, use
an appropriate voltage measuring device to make
sure that the capacitors are fully discharged.
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
Table 1.1 Discharge Time
Installation Instructions
Fan Replacement
VLT®Midi Drive FC 280
Danfoss A/S © 11/2015 All rights reserved. MI07D102

Installation
Enclosure Sizes K1, K2, and K4
1. Grab the center handle on the fan and use a at-
edged screwdriver to release the retaining lever.
Illustration 1.1 Removing Fan on Enclosure Sizes K1, K2, and K4
2. Unplug the fan cable.
Illustration 1.2 Fan Cable Plug. Plug Location Depends on Fan
Type.
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.
Illustration 1.3 Removing Fan Screw on Enclosure Size K3
2. Press the levers on each side of the fan and pull the
fan outwards.
Illustration 1.4 Pulling out Fan on Enclosure Size K3
Installation Instructions Fan Replacement
VLT
®
Midi Drive FC 280
2 Danfoss A/S © 11/2015 All rights reserved. MI07D102

3. Unplug the fan cable.
Illustration 1.5 Fan Cable Plug. Plug Location Depends on Fan
Type.
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.
Illustration 1.6 Removing Fan Screws on Enclosure Size K5
2. Grab the center handle and pull the fan outwards.
3. Unplug the fan cable.
Illustration 1.7 Fan Cable Plug. Plug Location Depends on Fan
Type.
NOTICE
For VLT
®
Midi Drive FC 280, the fan cable has 3 wires.
4. Install the new fan in reverse order.
Installation Instructions Fan Replacement
VLT
®
Midi Drive FC 280
MI07D102 Danfoss A/S © 11/2015 All rights reserved. 3

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.
Danfoss A/S
Ulsnaes 1
DK-6300 Graasten
vlt-drives.danfoss.com
*MI07D102*
MI07D102132R0159 11/2015