LS Industrial Systems SV-iV5 Series - Inverter Switching Frequency Select; Fun_57(Inverter Switching Frequency Select)

6. Function Description
6-45
100(%)
A
llowable continuous current (%)
Motor rpm
600(rpm)
1800(rpm)
90(%)
65(%)
Forced-cool
Self-cool
[The characteristic of allowable continuous current with respect to 4 pole, 60Hz motor]
Load Current (%)
Trip Time
1 minute
FUN_55
FUN_56
[ETH 1min]
[ETH cont]
[Motor i2t Characteristic Curve]
z
The motor protection is possible by calculating and accumulating I
2
t even in load variation and
frequent run/stop.
6.4.7 Inverter switching frequency select
1) FUN_57 (Inverter switching frequency select)
This parameter affects the audible sound of the motor, noise emission from the inverter, inverter
termperature, and leakage current. If the ambient temperature where the inverter is installed is high or
other equipment may be affected by potential inverter noise, set this value lower. (setting range:
2.5 ~ 10.0
kHz).
Code LCD display Description Setting range Unit
Factory
setting
FUN_57 PWM Freq Switching frequency select kHz