Appendix B Technical Data - INVT Goodrive35 Series Operation Manual

Goodrive35 Series Closed-loop Vector Control VFD
B.1 What this chapter contains
This chapter contains the technical specifications of the VFD, as well as provisions for fulfilling the
requirements for CE and other marks.
B.2 Ratings
B.2.1 Capacity
Choose a VFD based on the rated current and power of the motor. To endure the rated power of the
motor, the rated output current of the VFD must be larger or equal to the rated current of the motor.
The rated power of the VFD must be higher or equal to that of the motor.
Note:
1. The maximum allowable shaft power of the motor is limited to 1.5 times the rated power of the
motor. If the limit is exceeded, the VFD automatically restricts the torque and current of the motor.
This function effectively protects the input shaft against overload.
2. The rated capacity is the capacity at the ambient temperature of 40° C.
3. You need to check and ensure that the power flowing through the common DC connection in the
common DC system does not exceed the rated power of the motor.
B.2.2 Derating
If the ambient temperature on the site where the VFD is installed exceeds 40° C, the altitude exceeds
1000 m, or the switching frequency is changed from 4 kHz to 8, 12, or 15 kHz, the VFD needs to be
derated.
B.2.2.1 Temperature derating
When the temperature ranges from +40° C to +50° C, the rated output current is derated by 1% for
each increased 1° C. For the actual derating, see the following figure.
B.2.2.2 Altitude derating
When the installation site altitude is lower than 1000 m, the VFD can run at the rated power. If the
altitude on the site is higher than 1000 m, and not more than 3000 m, the maximum power is derated
by 1% for every increased 100 m. For details about the derating, see the following figure.

Appendix B Technical data

Derating coefficient (%)
100
90
80
60
40
20
-10 0 10 20
256
Temperature T
(℃)
30 40 50
Technical data