Mitsubishi MELDAS MDS-C1 Instruction Manual page 104

Ac servo/spindle
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High-gain specifications
No.
Abbrev.
Parameter name
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
Parameter name
Abbrev.
LMCT
Lost motion
(Low
compensation
SV040
order)
non-sensitive band
Icy
(High
Current bias 2
order)
Lost motion
SV041
LMC2
compensation 2
Overshooting
SV042
OVS2
compensation 2
Disturbance
SV043
OBS1
observer filter
frequency
Disturbance
SV044
OBS2
observer gain
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
Parameter name
Abbrev.
TRUB
SV045
(Low
Frictional torque
order)
Ib1
(High
Current bias 3
order)
Notch filter frequency
SV046
FHz2
2
Inductive voltage
SV047
EC
compensation gain
Vertical axis drop
SV048
EMGrt
prevention time
Position loop gain 1
SV049
PGN1sp
in spindle
synchronous control
Position loop gain 2
SV050
PGN2sp
in spindle
synchronous control
Parameters with an asterisk * in the abbreviation, such as PC1*, are validated with the NC power turned ON again.
3. Setup
Explanation
Set the non-sensitive band of the lost motion compensation
in the feed forward control.
When "0" is set, the actual value that is set is 2µm.
Adjust by increasing by 1µm at a time.
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.
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.
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.
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".
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".
Explanation
When you use the collision detection function, set the
frictional torque.
Normally set to "0".
Use this in combination with SV030 and the high order
8bits of SV040.
Set the vibration frequency to suppress if machine vibration occurs.
(Valid at 36 or more) When not using, set to "0".
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.
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.
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).
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".
3 - 25
Explanation
Setting range
Setting range
(Stall [rated]
current %)
Setting range
(Unit)
(Unit)
0 to 100
0 to 32767
(µm)
0 to 127
-1 to 200
(Stall [rated]
current %)
-1 to 100
(Stall [rated]
current %)
0 to 1000
(rad/s)
0 to 500
(%)
(Unit)
0 to 100
0 to 32767
0 to 127
0 to 9000
(Hz)
0 to 200
(%)
0 to 20000
(ms)
1 to 200
(rad/s)
0 to 999
(rad/s)

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