YASKAWA Varispeed G7 Series Instruction Manual page 279

Overload current reduction level
For 400 V Class Inverters, the following limitations apply to the maximum output frequency that can be set
for the carrier frequency settings.
Carrier Frequency
Maximum output frequency setting
Applicable Inverter capacity
CIMR-G7
Motor 2 Carrier Frequency Setting Precautions
Observe the following precautions when using motor 2 with a 400 V Class Inverter with a capacity of 90 kW
to 220 kW.
C6-02 (Carrier Frequency Selection), C6-03 (Carrier Frequency Upper Limit), and C6-04 (Carrier Fre-
•
quency Lower Limit) cannot be set while motor 2 is selected.
Except in the following case, the carrier frequency of motor 2 is the same as motor 1.
•
When the setting of C6-03 (Carrier Frequency Upper Limit) is out of the setting range for E3-01 (Motor 2
Control Method Selection).
When switching to motor 2 in this case, the setting of C6-03 (Carrier Frequency Upper Limit) is set to the
upper limit of the setting range for E3-01 (Motor 2 Control Method Selection).
-46
6
100%
87%
50%
0
Fig 6.37 Reduction Levels for Open-loop Vector 2 Control
0.4 kHz
33 Hz
200 V Class,
30 to 75 kW
4 kHz 8 kHz
1 kHz 1.5 kHz 2 kHz
83 Hz 125 Hz 166 Hz
40P4 to 4300
Carrier frequency
3 kHz 5 kHz 8 kHz
250 Hz 400 Hz 400 Hz
40P4 to 40P4 to 40P4 to
4110 4075 4045