１５６
8.2.24 Droop
Droop control automatically balances the load level between two motors driving
the same load. Output frequency is changed by the amount of output torque.
Output frequency decreased or increased depends on the amount of load that detects the
output torque in real time.
43.03 (Droop reference frequency) x
43.04 (Droop gain)
100 %
43.05 (Droop start torque)
t
100%
F(Hz)
(Output torque – Droop Start Torque)
100% - Droop Start Torque
Control frequency =
x Droop Gain x Droop Ref. Freq
43.01 Droop type
0: No droop control ----- Initial value
1: Open loop
2: F/B (0~10V)
3: F/B (4~20mA)
Set 0: No droop control
Droop control disable
Set 1: Open loop
Droop control without feedback (Open loop)
Set 2 : F/B (0~10V)
Connected the torque output of VFD A to the voltage input (O) of VFD B
Set 3 : F/B (4~20mA)
Connected the torque output of VFD A to the voltage input (OI) of VFD B
43.02 Droop start frequency
Range: 0.00 ~ 400.0 Hz in 0.01 Hz
Initial value: 0.00 Hz
Set the droop control starting frequency.
The droop control doesn’t work under B50 value.
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