Danfoss VFD500 Series Manual page 12

Chapter 2 Product information
Control mode
Operating
Speed range
Speed control
accuracy
response
frequency
Input frequency
resolution
Startup torque
Torque control
accuracy
V/f curve
Control
Frequency
giving ramp
DC bus voltage
control
Carrier
frequency
Startup method
Stop method
VFD500 high performance vector control frequency inverter user manual
V/f control
Sensorless flux vector control without PG card（SVC）
Sensor speed flux vector control with PG card (VC)
Speed control、Torque control（SVC and VC）
mode
1:100 (V/f)
1:200( SVC)
1:1000 (VC)
±0.5% (V/f)
±0.2% (SVC)
±0.02% (VC)
5Hz(V/f)
Speed
20Hz(SVC)
50Hz(VC)
0.00～600.00Hz(V/f)
0.00～200.00Hz(SVC)
range
0.00～400.00Hz(VC)
Digital setting: 0.01 Hz
Analog setting: maximum frequency x 0.1%
150%/0.5Hz(V/f)
180%/0.25Hz(SVC)
200%/0Hz(VC)
SVC：within 5Hz10%，above 5Hz5%
VC:3.0%
V / f curve type: straight line, multipoint, power function, V / f
separation;
Torque boost support: Automatic torque boost (factory setting),
manual torque boost
Support linear and S curve acceleration and deceleration;
4 groups of acceleration and deceleration time, setting range
0.00s ~ 60000s
Overvoltage stall control: limit the power generation of the motor
by adjusting the output frequency to avoid skipping the voltage
fault;
Undervoltage stall control: control the power consumption of the
motor by adjusting the output frequency to avoid yaw failure
VdcMax Control: Limit the amount of power generated by the
motor by adjusting the output frequency to avoid over-voltage
trip;
VdcMin control: Control the power consumption of the motor by
adjusting the output frequency, to avoid jump undervoltage fault
1kHz～12kHz(Varies depending on the type)
Direct start (can be superimposed DC brake); speed tracking
start
Deceleration stop (can be superimposed DC braking); free to
stop
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