Senlan Hope800 Series Manual page 74

6 Parameter Description
The relastionship between F2-02, F2-03, F2-12 and F2-13 are shown in the following diagram.
Max. output voltage
Manual torque
boost level
 Auto torque boost can alter the voltage according to the load current, compensating for the voltage loss
of the stator impedance and adapting to various load conditions automatically. It ensures a large output
torque under heavy load and a small output current under no load.
In V/F control mode, the functions of "starts from searched speed", "auto torque boost" and "slip
compensation" use some motor parameters, therefore we recommend you to conduct the auto-tuning of
the motor at a standstill before using them in order to gain a better control.
F2-05
Setting
0.0~300.0％
range
F2-06 Slip compensation filtering time
Setting
0.1~25.0s
range
F2-07 Electromotive slip compensation limit
F2-08 Regenerative slip compensation limit
Setting
0~250％(motor rated slip frequency=100％)
range
If the output frequency remains constant, the change of the load will cause the change of the slip, thus
leading to the drop of the speed. The slip compensation function can regulate the inverter output
frequency online according to the load torque, reducing the speed change with the torque and improving
the speed control accuracy.
Slip compensation is valid when F2-01= 2 or 3.
The size of slip compensation can be adjusted by F2-05. It's better to perform the adjustment when the
temperature of the motor running with the load is basically stable. F2-05=100% means the compensation
value corresponding to the rated torque is the rated slip frequency, which is calculated from the
following formula:
Rated slip frequency=rated frequency-(rated speed×pole number÷120)
If the motor vibrates when the slip compensation is performed, increase the value of F2-06 moderately.
F2-09
Setting
0~200
range
70
Voltage
Manual torque boost
0
cut-off point
Slip compensation gain
Vibration damping
(Base frequency, Max. output voltage)
Base
frequency
frequency
Default
Default
Default
Default
Default
Max.
Frequency
0.0％ Change
1.0s Change
200％ Change
Change
200％
Depends
Change
on mode
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