Specifications

II Parameters
Servo Parameters
II - 134
【#2228(PR)】 SV028 MSFT Magnetic pole shift amount (for linear/direct-drive motor)
Set this parameter to adjust the motor magnetic pole position and detector's installation
phase when using linear motors or direct-drive motors.
During the DC excitation of the initial setup (SV034/bit4=1), set the same value displayed in
"AFLT gain" on the NC monitor screen.
Related parameters: SV034/bit4, SV061, SV062, SV063
For general motor:
Not used. Set to "0".
---Setting range---
-18000 to 18000 (Mechanical angle 0.01°)
【#2229】 SV029 VCS Speed at the change of speed loop gain
Noise at high speed rotation including rapid traverse can be reduced by lowering the speed
loop gain at high speeds.
Set the speed at which the speed loop gain changes. Use this with SV006 (VGN2).
When not using, set to "0".
---Setting range---
0 to 9999 (r/min)
【#2230】 SV030 IVC Voltage non-sensitive band compensation
When 100% is set, the voltage reduction amount equivalent to the logical non-energization
in the PWM control will be compensated.
When "0" is set, 100% compensation will be performed.
Adjust in increments of 10% from the default value of 100%.
If increased too much, vibration or vibration noise may be generated.
---Setting range---
0 to 255 (%)
【#2231】 SV031 OVS1 Overshooting compensation 1
This compensates the motor torque when overshooting occurs during positioning. This is
valid only when the overshooting compensation (SV027/bitB,A) is selected.
Type 3 SV027/bitB,A=11
Set the compensation amount based on the motor stall current. Observing positioning
droop waveform, increase in increments of 1% and find the value where overshooting does
not occur.
To vary compensation amount depending on the direction.
When SV042 (OVS2) is "0", change the SV031 (OVS1) value in both of the +/- directions
to compensate.
To vary the compensation amount depending on the command direction, set this and
SV042 (OVS2).
(SV031: + direction, SV042: - direction. However, the directions may be opposite
depending on other settings.)
When "-1" is set, the compensation will not be performed in the direction of the command.
Related parameters: SV027/bitB,A, SV034/bitF-C, SV042, SV082/bit2
---Setting range---
-1 to 100 (Stall current %)
Note that the range will be "-1 - 10000" (Stall current 0.01%) when SV082/bit2 is "1".
【#2232】 SV032 TOF Torque offset
Set the unbalance torque on vertical axis and inclined axis.
When the vertical axis pull up function is enabled, the pull up compensation direction is
determined by this parameter's sign. When set to "0", the vertical axis pull up will not be
executed.
This can be used for speed loop delay compensation and collision detection function.
To use load inertia estimation function (drive monitor display), set this parameter, friction
torque (SV045) and load inertia display enabling flag(SV035/bitF).
Related parameters: SV007, SV033/bitE, SV059
---Setting range---
-100 to 100 (Stall current %)