Goodrive20-EU series VFD
Technical data
140
Appendix A Technical data
A.1 Ratings
A.1.1 Capacity
VFD sizing is based on the rated motor current and power. To achieve the rated motor power
given in the table, the rated current of the VFD must be higher than or equal to the rated motor
current. Also the rated power of the VFD must be higher than or equal to the rated motor
power. The power ratings are the same regardless of the supply voltage within one voltage
range.
Note:
1. The maximum allowed motor shaft power is limited to 1.5*PN. If the limit is exceeded, motor
torque and current are automatically restricted. The function protects the input bridge of the
drive against overload.
2. The ratings apply at ambient temperature of 40°C.
3. It is important to check that in common DC systems the power flowing through the common
DC connection does not exceed PN.
A.1.2 Derating
The load capacity decreases if the installation site ambient temperature exceeds 40°C, the
altitude exceeds 1000 meters or the switching frequency is changed from 4 kHz to 8, 12 or 15
kHz.
A.1.2.1 Temperature derating
In the temperature range +40°C…+50°C, the rated output current is decreased by 1% for
every additional 1°C. Refer to the below list for the actual derating.
Derating coefficient (%)
Temperature (
℃
)
-10
0
10
20
30
40
50
100
90
80
60
40
20
A.1.2.2 Altitude derating
When the altitude of the site exceeds 1000 m, the VFD can run at the rated power. When the
altitude exceeds 1000m but is lower than 3000m, derate 1% for every additional 100m, For
details about the derating, see the following figure.
Summary of Contents for GD20-004G-2-EU
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