Danfoss VLT Midi Drive FC 280

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 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.
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