INVT Goodrive270 Series

Goodrive270 series VFD for fan and pump Technical data
-331-
B.2.2.3 Derating due to carrier frequency
The carrier frequency of the VFD varies with power class. The VFD rated power is defined based on
the carrier frequency factory setting. If the carrier frequency exceeds the factory setting, the VFD
power is derated by 10% for each increased 1 kHz.
B.3 Grid specifications
Grid voltage
AC 3PH 380V–480V
Short-circuit
capacity
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.
Frequency
50/60 Hz±5%, with a maximum change rate of 20%/s
B.4 Motor connection data
Motor type
Asynchronous induction motor or permanent-magnet synchronous motor
Voltage
0–U1 (motor rated voltage), 3PH symmetrical, Umax (VFD rated voltage) at
the field-weakening point
Short-circuit
protection
The motor output short-circuit protection meets the requirements of IEC
61800-5-1.
Frequency
0–400 Hz
Frequency
resolution
0.01 Hz
Current
See section 3.6 Product ratings.
Power limit
1.1 times of the motor rated power
Field-weakening
point
10–400 Hz
Carrier
frequency
2, 4, 8, 12, or 15 kHz
B.4.1 EMC compatibility and motor cable length
The VFD supports the built-in and external filter solutions to meet IEC/EN 61800-3 Second
environment (C3) and First environment (C2) EMC requirements. According to the 4kHz carrier
frequency setting, the motor cable length requirements are as follows:
VFD power
range
Supported motor cable length (unit: m)
Built-in
External
Second
environment
category C3
First environment
category C2
Second
environment
category C3
First environment
category C2
1.5–22kW
20
20
/
1
30–132kW
30
/
/
1(10)
160–500kW
30
/
/
1