Goodrive350 series high-performance multifunction VFD
B.2.2.3 Derating due to carrier frequency
The VFDs in different power classes are different in carrier frequency. The rated power of a VFD is
defined based on the carrier frequency set in factory. If the carrier frequency exceeds the factory
setting, the power of the VFD is derated by 10% for each increased 1 kHz.
B.3 Grid specifications
Grid voltage
Short-circuit capacity
Frequency
B.4 Motor connection data
Motor type
Voltage
Short-circuit protection
Frequency
Frequency resolution
Current
Power limit
Field-weakening point
Carrier frequency
B.4.1 EMC compatibility and motor cable length
The following table describes the maximum motor cable lengths that meet the requirements of the EU
EMC directive (2014/30/EU).
All models (with external EMC filters)
Second environment (C3)
You can learn the maximum length of the motor cable through the running parameters of the VFD. To
understand the accurate maximum cable length for using an external EMC filter, contact the local
INVT office.
For description about the environments category II (C3), see section B.6 EMC regulations.
AC 3PH 380V (-15%)–440V (+10%)
AC 3PH 520V (-15%)–690V (+10%)
According to the definition in IEC 61439-1, the maximum allowable
short-circuit current at the incoming end is 100 kA. Therefore, the
VFD is applicable to scenarios where the transmitted current in the
circuit is no larger than 100 kA when the VFD runs at the maximum
rated voltage.
50/60 Hz±5%, with a maximum change rate of 20%/s
Asynchronous induction motor or permanent-magnet synchronous
motor
0–U1 (Motor rated voltage), 3PH symmetrical, Umax (VFD rated
voltage) at the field-weakening point
The short-circuit protection for the motor output meets the
requirements of IEC 61800-5-1.
0–400 Hz
0.01 Hz
See section 3.6 Ratings.
1.5 times the motor rated power
10–400 Hz
4, 8, 12, or 15 kHz
-377-
Maximum motor cable length (m)
30
Technical data
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