Samsung MOSCON-E7 - 5.4.3 Jump frequency to avoid mechanical resonant oscillation; 5.4.3.1 Setting jump frequency: F1.03~F1.06

5. Parameters 5-17
• F1.03~F1.05 are used to prohibit the inverter from producing output
voltages of certain frequency ranges, in order to prevent the mechanical
vibration caused by mechanical structure as shown in Figure 5.5.
• Set F1.03~F1.05 as 0.00Hz to disable the jump frequencies.
• F1.03~F1.05 set the center values of the frequency to be jumped.
• Jump frequencies should be set so that F1.05 ≤F1.04 ≤ F1.03
• F1.06 is used to control the jump frequency bandwidth.
• Jump frequency range = jump frequency ±jump frequency bandwidth
5.4.3.2 Selecting the jump mode : F1.07
Parameter
No.
Name Unit
Setting
range
Factory
Setting
Changeable
during
operation
F1.07 Jump Mode - 0~1 0 X
• F1.07 is used to fix the output frequency inside the jump frequency
region
• Setting
Setting
constant
Function
0 Output frequency is fixed to lower limit of jump frequency region
1 Output frequency is fixed to upper limit of jump frequency region
• During accel/decel operation, output frequency changes smoothly
without jump even though jump frequencies are activated.
5-18 MOSCON-E7 User’s Manual
Figure 5.5 Starting jumping frequencies
F1.05 F1.04
F1.06
F1.03
Internal Frequency Reference
Frequency Command
Dotted Lines show operation during
Acceleration/Deceleration
F1.05 F1.04
F1.06
F1.03
Internal Frequency Reference
Frequency Command
Dotted Lines show operation during
Acceleration/Deceleration