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7. Servo Parameters
7.2 MDS-C1-Vx High-gain (MDS-B-Vx4 Compatible)
117
No. Items Details Setting range
The higher order 8bits and lower order 8bits are used for different functions.
“The setting value of SV030” = (Icx*256) + IVC
0 to 32767
SV030
IVC
(Low
order)
Voltage dead
time compensa-
tion
When 100% is set, the voltage equivalent to the
logical non-energized time will be compensated.
When “0” is set, a 100% compensation will be
performed.
Adjust in increments of 10% from the default value
100%.
If increased too much, vibration or vibration noise
may be generated.
0 to 255
(%)
2230
SV030
Icx
(High
order)
Current bias 1 Set to “0” as a standard.
Use this in combination with SV040 and the high
order 8bits of SV045.
0 to 127
Set this if overshooting occurs during positioning.
This compensates the motor torque during
positioning.
This is valid only when the overshooting
compensation SV027 (SSF1/ovs) is selected.
Type 1: When SV027 (SSF1)/ bitB, A (ovs)=01
Set the compensation amount based on the motor’s
stall current.
This compensates overshooting that occurs during
pulse feeding.
Normally, use Type 2.
Type 2: When SV027 (SSF1)/ bitB, A (ovs)=10
Set the compensation amount based on the motor’s
stall current.
Increase by 1% and determine the amount that
overshooting doesn’t occur.
In Type 2, compensation during the feed forward
control during circular cutting won’t be performed.
Type 3: When SV027 (SSF1)/ bitB, A (ovs)=11
Use this to perform the overshooting compensation
during circular cutting or the feed forward control.
The setting method is the same in Type 2.
2231 SV031
OVS1
Overshooting
compensation 1
When you wish different compensation amount
depending on the direction
When SV042 (OVS2) is “0”, compensate with the
value of SV031 (OVS1) in both of the + and
-directions.
If you wish to change 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 won’t be
performed in the direction of the command.
-1 to 100
(Stall [rated]
current %)
2232 SV032
TOF
Torque offset Set the unbalance torque of vertical axis and inclined
axis.
-100 to 100
(Stall [rated]
current %)