LS Industrial Systems iG5A - Initializing All Parameters

1. Basic Checklist
13
Adjust motor operational noise by changing carrier frequency settings. Power transistors (IGBT) in the
inverter generate and supply high frequency switching voltage to the motor. The switching speed in this
process refers to the carrier frequency. If the carrier frequency is set high, it reduces operational noise
from the motor, and if the carrier frequency is set low, it increases operational noise from the motor.
Below are advantages and disadvantages according to the sound of the inverter during operation.
Item
Carrier Frequency
LOW
HIGH
Motor noise
↑
↓
Heat
generation
↓
↑
Noise
generation
↓
↑
Leakage
current
↓
↑
1.3.2 Initializing All Parameters
The following example demonstrates parameter initialization using code H93 (Parameter Initialization) in
the Function group 2. Once executed, parameter initialization will delete all configuration values for all
codes and groups.
Step
Instruction
Keypad Display
1
Go to code H0 in the Function group 2.
2
Press the [ENT] key.
The current parameter value (9) will be displayed.
3
Press the [▼] key to change the first place value to ‘3’ of the target
code, ’93.’