Automatic Derating - Danfoss VLT FC 360 Design Manual

Specifications
Frame size Power size
[kW]
J1
J2
J3
J4
6 6
J5
Table 6.13 Derating at 480 V

6.7.2 Automatic Derating

The frequency converter constantly checks for critical
levels:
•
Critical high temperature on the control card or
heatsink
•
High motor load
•
Low motor speed
As a response to a critical level, the frequency converter
adjusts the switching frequency. For low motor speed, the
frequency converter can also force the PWM pattern to
SFAVM.
76
Max. output current Max. output current
at 45 °C at 50 °C
0.37 1.1
0.55 1.6
0.75 2.1
1.1 3.0
1.5 3.4
2.2 4.8
3 6.3
4 8.2
5.5 11.0
7.5 14.0
11 21.0
15 27.0
18.5 34.0
22 40.0
MG06B202 - VLT
®
VLT AutomationDrive FC 360 Design Guide
1.1
1.6
2.1
2.8
2.8
3.8
6.3
8.2
9.4
11.9
21.0
22.6
34.0
37.7
®
is a registered Danfoss trademark