102
Forward
Reverse
Output
Frequency
ON
ON
OFF
OFF
C2-00
C2-01 C2-02
C2-03
C2-00
C2-01
C2-02
C2-03
Figure 6.23 S-Curve Characteristics during Forward and Reverse
Setting the S-curve will increase the actual acceleration and deceleration times.
Actual acceleration time= acceleration time (C2-00+C2-01) / 2
Actual deceleration time=deceleration time s(C2-02+C2-03) / 2
C3 Torque Compensation
The torque compensation is to enlarge the torque by increasing the output voltage when
larger load is applied. The drive detects the increased amount of the load by the output
current and adjusts the control with higher output voltage.
Note: Check if the motor parameters and the V/F pattern are set correctly before setting the torque compensation.
C3-00
Torque Compensation Gain
Sets the gain for the motor 1 Torque compensation.
No.
Name
Setting Range
Default
C3-00
Torque Compensation Gain
0.00 to 2.50
Determined by A1-02
□ Torque Compensation in Closed-Loop and Open-Loop V/F Control
The drive calculates the voltage loss on the output side using the output voltage and the
d2-04 (Motor Line-to-Line Resistance) value, and improves the torque when it is insufficient
during start or running at low speed.
Compensation voltage=Motor primary voltage loss x C3-00.
□ Torque Compensation in Open-Loop Vector Control, PM Open-Loop Vector Control
The motor excitation currents d-axis and q-axis are controlled separately. Torque
compensation affects q-axis current only.
Compensation voltage= q-axis voltage compensation (calculated by q-axis current) x C3-00
Summary of Contents for EVO 6800 Series
Page 1: ...MANUAL Compact Vector Drive EVO 6800 Series...
Page 33: ...33 34 2 36 0 2 8 93 0...
Page 35: ...35 4 2 Main Circuit...
Page 41: ...41 4 3 Control Circuit...
