Resonance Avoidance - Fuji Electric FRENIC-HVAC User Manual

5.6.7.4

Resonance Avoidance

PRG > 6(Tools) > 4(Resonant Avd.)
Operations can be conducted in a manner that avoids points of mechanical resonance. The inverter
operates by jumping frequencies. Resonance prevention settings are set to accomplish this. Three
resonance prevention points can be set, and the jump width can be set at one common point.
Fref
0.00
STOP
Iout 0.00A
PWR 0.03kW
↓
PRG
1.Start-up
2.Function Code
3.INV Info
4.Alarm Info
5.User Config
6.Tools
↓
/
PRG>6
1.PID Monitor
2.Multi-Op. Mon
3.CLogic Monitor
4.Resonant Avd.
5.Load Factor.
6.COM Debug
↓
/
PRG>6>4
Fout1 12.99Hz
Fjmp1 0.0Hz
Fjmp2 0.0Hz
Fjmp3 0.0Hz
Width 3.0Hz
↓
/
PRG>6>4
Fout1 14.40Hz
Fjmp1 12.9Hz
Fjmp2 0.0Hz
Fjmp3 0.0Hz
Width 3.0Hz
↓
/
PRG>6>4
Fout1 34.60Hz
Fjmp1 12.9Hz
Fjmp2 33.1Hz
Fjmp3 0.0Hz
Width 3.0Hz
↓
/
Hz
Return to previous screen
1. Press the key while the running mode
screen is displayed.
2. Use the /
and confirm with the
3. Use the /
Avd.], and confirm with the
4. Operate with the run command ON.
5. Pressing the
sets resonance prevention point 1 (Fjmp1).
Note: Pressing the
changes the width (jump width). (Consistent for Fjmp1-
Fjmp3).
6. Using the key to move the cursor to
Fjmp2 and pressing the
point of resonance set resonance prevention
point 2 (Fjmp2).
Note: Pressing the
changes the width (jump width). (Consistent for Fjmp1–
Fjmp3).
5-92
Return to running
keys to select [6. Tools],
key.
keys to select [4. Resonant
key.
key at a point of resonance
key for a long period of time
key at the next
key for a long period of time