Mitsubishi MELDAS MDS-C1 Instruction Manual page 105

High-gain specifications
No. Abbrev. Parameter name
Dual feed back
SV051 DFBT
control time constant
Dual feedback
SV052
DFBN control non-sensitive
band
Excessive error
SV053 OD3 detection width in
special control
When SV035 (SSF4)/ bit7 (ckab)=0
Overrun detection
ORE width in closed loop
control
When SV035 (SSF4)/ bit7 (ckab)=1 (Note) This applies to only MDS-C1-Vx.
For SV054, the hexadecimal value's higher order 8 bits and lower order 8 bits are used for different
functions.
"Setting value of SV054" =(NSE×256)+ORE
Parameter name
Abbrev.
SV054
ORE Overrun detection
(Low width in closed loop
order) control
NSE
Special detection
(High
width for No signal 2
order)
Max. gate off delay
SV055 EMGx time after
emergency stop
Deceleration time
SV056 EMGt constant at
emergency stop
SV057 SHGC SHG control gain
SHG control gain in
SV058 SHGCsp spindle
synchronous control
Collision detection
SV059 TCNV torque estimating
gain
Parameters with an asterisk * in the abbreviation, such as PC1*, are validated with the NC power turned ON again.
3. Setup
Set the control time constant in dual feed back.
When "0" is set, the actual value that is set is 1msec.
The higher the time constant is, the closer it gets to the semi-closed control,
so the limit of the position loop gain is raised.
Set to "0" as a standard.
Set the dead zone in the dual feedback control.
Set the excessive error detection width when servo ON in a special control
(initial absolute position setting, stopper control, etc.).
If "0" is set, excessive error detection won't be performed.
Set the overrun detection width in the full-closed loop control.
If the gap between the motor end detector and the linear scale (tool end
detector) exceeds the value set by this parameter, it is judged to be overrun
and Alarm 43 will be detected.
When "-1" is set, the alarm detection won't be performed. When "0" is set,
overrun is detected with a 2mm width.
Explanation
Set the overrun detection width in the full-closed loop
control.
If the gap between the motor end detector and the linear
scale (tool end detector) exceeds the value set by this
parameter, it is judged to be overrun and Alarm 43 will be
detected.
When "255" is set, the alarm detection won't be
performed. When "0" is set, overrun is detected with a
2mm width.
When SV035 (SSF4)/ bit7 (ckab) =1, this setting is valid.
Set the special detection width for No signal 2 (Alarm 21).
When "0" is set, overrun is detected with a 15µm width.
Set a length of time from the point when the emergency stop is input to the
point when READY OFF is compulsorily executed.
Normally, set the same value as the absolute value of SV056.
In preventing the vertical axis from dropping, the gate off is delayed for the
length of time set by SV048 if SV055's value is smaller than that of SV048.
Set the time constant used for the deceleration control at emergency stop.
Set a length of time that takes from rapid traverse rate (rapid) to stopping.
Normally, set the same value as the rapid traverse acceleration/deceleration
time constant.
When executing the synchronous operation, put the minus sign to the
settings of both of the master axis and slave axis.
When performing the SHG control, set this with S003 (PGN1) and
SV004 (PGN2).
When not performing the SHG control, set to "0".
Set this with SV049 (PGN1sp) and SV050 (PGN2sp) if you wish to perform
the SHG control in the synchronous tapping control.
When not performing the SHG control, set to "0".
Set the torque estimating gain when using the collision detection function.
After setting as SV035/bitF(clt)=1 and performing acceleration/deceleration,
set the value displayed in MPOS of the NC servo monitor screen.
Set to "0" when not using the collision detection function.
3 - 26
Explanation
Setting range
Setting range
(Unit)
0 to 9999
(ms)
0 to 9999
(µm)
0 to 32767
(mm)
-1 to 32767
(mm)
(Unit)
0 to 32767
0 to 255
(mm)
0 to 127
µ
( m)
0 to 20000
(ms)
-20000 to
20000
(ms)
0 to 1200
(rad/s)
0 to 1200
(rad/s)
-32768 to
32767