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3. Setup
3 - 61
Standard specifications
No. Abbrev. Parameter name Explanation
Setting range
(Unit)
For SV040, the hex. value’s higher order 8bits and lower order 8bits are used for different functions.
“Setting value of SV040” = (Icy*256) + LMCT
Abbrev. Parameter name Explanation
Setting range
(Unit)
LMCT
(Low
order)
Lost motion
compensation dead
band
Set the dead band of the lost motion compensation in the
feed forward control.
When “0” is set, the actual value that is set is 2m.
Adjust by increasing by 1m at a time.
0 to 100
(µm)
Icy
(High
order)
Current bias 2
Normally, set to “40” if you use HC202 to HC902, HC203
to HC703.
Use this in combination with SV030 and the high order
8bits of SV045.
0 to 127
SV040
0 to 32767
SV041 LMC2
Lost motion
compensation 2
Set this with SV016 (LMC1) only when you wish to set the lost motion
compensation amount to be different depending on the command directions.
Set to “0” as a standard.
-1 to 200
(Stall [rated]
current %)
SV042 OVS2
Overshooting
compensation 2
Set this with SV031 (OVS1) only when you wish to set the overshooting
compensation amount to be different depending on the command directions.
Set to “0” as a standard.
-1 to 100
(Stall [rated]
current %)
SV043 OBS1
Disturbance
observer filter
frequency
Set the disturbance observer filter band.
Set to “100” as a standard.
To use the disturbance observer, also set SV037 (JL) and SV044 (OBS2).
When not using, set to “0”.
0 to 1000
(rad/s)
SV044 OBS2
Disturbance
observer gain
Set the disturbance observer gain. The standard setting is “100” to “300”.
To use the disturbance observer, also set SV037 (JL) and SV043 (OBS1).
When not using, set to “0”.
0 to 500
(%)
For SV045, the hexadecimal value's higher order 8 bits and lower order 8 bits are used for different
functions.
“Setting value of SV045” = (Icy
× 256) + LMCT
Abbrev. Parameter name Explanation
Setting range
(Unit)
TRUB
(Low
order)
Frictional torque
When you use the collision detection function, set the
frictional torque.
0 to 100
(Stall [rated]
current %)
Ib1
(High
order)
Current bias 3
Normally set to “0”.
Use this in combination with SV030 and the high order
8bits of SV040.
0 to 127
SV045
0 to 32767
SV046 Not used. Set to "0". 0
SV047 EC
Inductive voltage
compensation gain
Set the inductive voltage compensation gain. Set to “100” as a standard.
If the current FB peak exceeds the current command peak, lower the gain.
0 to 200
(%)
SV048 EMGrt
Vertical axis drop
prevention time
Input a length of time to prevent the vertical axis from dropping by delaying
Ready OFF until the brake works when the emergency stop occurs.
Increase the setting by 100msec at a time and set the value where the axis
does not drop.
0 to 20000
(ms)
SV049 PGN1sp
Position loop gain 1
in spindle
synchronous control
Set the position loop gain during the spindle synchronous control
(synchronous tapping, synchronous control with spindle/C axis).
Set the same value as the value of the spindle parameter, position loop gain
in synchronous control.
When performing the SHG control, set this with SV050 (PGN2sp) and
SV058 (SHGCsp).
1 to 200
(rad/s)
SV050 PGN2sp
Position loop gain 2
in spindle
synchronous control
Set this with SV049 (PGN1sp) and SV058 (SHGCsp) if you wish to perform
the SHG control in the spindle synchronous control (synchronous tapping,
synchronous control with spindle/C axis).
When not performing the SHG control, set to “0”.
0 to 999
(rad/s)
Parameters with an asterisk * in the abbreviation, such as PC1*, are validated with the NC power turned ON again.