Omron SYSDRIVE MX2 SERIES - Automatic Carrier Frequency Reduction Function

5-52
5-5 Settings Relating to Control Method
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
5
Functions
Automatic Carrier Frequency Reduction Function
This function automatically reduces carrier frequency according to an increase in output
current.
This function is enabled when Automatic Carrier Reduction (b089) is set to "01: Enabled."
When the output current exceeds 60%, 72%, 84% or 96% of the rated current, the carrier
frequency is reduced to 12, 9, 6 or 3 kHz, respectively. When the output current falls below -
5% of each level, this function will be reset.
 When b089 set to 01
Parameter
No.
Function name Data
Default
setting
Unit
b089
Automatic Carrier
Reduction
00: Disabled
00 −
01: Enabled/depends on current
02: Enabled/depends on fin
temperature
Related functions b083
Starting level of carrier
frequency reduction
(Recovery level)
Reduced carrier
frequency [kHz]
Less than 60% of the rated current 15.0
60% (55%) of the rated current 12.0
72% (67%) of the rated current 9.0
84% (79%) of the rated current 6.0
96% (91%) of the rated current 3.0
15.0 kHz
60 %
Output current (%)
Carrier frequency
12.0 kHz
9.0 kHz
6.0 kHz
3.0 kHz
100500
72 % 84 % 96 %