C70 Setup Manual
Appendix 1.6 Spindle Parameters
319
【
#13074
】
SP074 VGVS Variable speed gain change start speed
If noise is bothersome during high speed rotation, it may be reduced by lowering the speed loop gain
at high speed.
Set this value to ensure the adequate response by suppressing noise and vibration at low speeds
and increasing the speed loop gain at high speeds for a high-speed spindle of machining center, etc.
As shown below, set the speed loop gain rate for the overspeed detection speed in SP073 (VGVN),
and use with SP074 (VGVS).
When not using, set to "0".
The overspeed detection speed (VLMT) is 115% of the maximum motor speed (TSP).
This function can be used when either Speed loop gain set 1 or Speed loop gain set 2 is selected.
---Setting range---
0 to 32767 (r/min)
【
#13075
】
SP075 DWSH Slip compensation scale during regeneration high-speed coil
Set the slip frequency scale during deceleration.
Normally, set to "0". (For machine tool builder adjustment)
---Setting range---
0 to 255 (1/16-fold)
【
#13076
】
SP076 DWSL Slip compensation scale during regeneration low-speed coil
Set the slip frequency scale at deceleration when using the low-speed coil.
Normally, set to "0". (For machine tool builder adjustment)
---Setting range---
0 to 255 (1/16-fold)
【
#13077
】
SP077 IQA Q axis current lead compensation
Set the current loop gain.
To use the coil switch function, set the current loop gain for when the high-speed coil is selected.
The setting value is determined by the motor's electrical characteristics so that the value is fixed to
each motor used.
Set the value given in the spindle parameter list. (For machine tool builder adjustment)
---Setting range---
1 to 20480
【
#13078
】
SP078 IDA D axis current lead compensation
Set the current loop gain.
To use the coil switch function, set the current loop gain for when the high-speed coil is selected.
The setting value is determined by the motor's electrical characteristics so that the value is fixed to
each motor used.
Set the value given in the spindle parameter list. (For machine tool builder adjustment)
---Setting range---
1 to 20480
VGVN
(SP073)
<100
VGVS
(SP074)
VLMT
(SP026
㬍
1.15)
100
VGVN
(SP073)
>100
VGVS
(SP074)
VLMT
(SP026
㬍
1.15)
100
Scale[%]
Motor speed
[r/min]
Scale[%]
Motor speed
[r/min]
When lowering the speed loop gain at high speed
When increasing the speed loop gain at high speed
Summary of Contents for C70
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Page 18: ...1 1 Outline ...
Page 21: ...1 Outline MITSUBISHI CNC 4 ...
Page 22: ...5 2 GOT Initial Setup ...
Page 73: ...2 GOT Initial Setup MITSUBISHI CNC 56 ...
Page 74: ...57 3 PLC CPU Initial Setup ...
Page 91: ...3 PLC CPU Initial Setup MITSUBISHI CNC 74 ...
Page 92: ...75 4 CNC CPU Initial Setup ...
Page 105: ...4 CNC CPU Initial Setup MITSUBISHI CNC 88 ...
Page 106: ...89 5 Connecting and Setting up Multiple CNC CPU Modules ...
Page 115: ...5 Connecting and Setting up Multiple CNC CPU Modules MITSUBISHI CNC 98 ...
Page 116: ...99 6 Setting Machine Parameters ...
Page 130: ...113 7 Setting the Position Detection System ...
Page 153: ...7 Setting the Position Detection System MITSUBISHI CNC 136 ...
Page 154: ...137 8 Deceleration Check ...
Page 159: ...8 Deceleration Check MITSUBISHI CNC 142 ...
Page 160: ...143 9 Setting the Tool Entry Prohibited Range ...
Page 169: ...9 Setting the Tool Entry Prohibited Range MITSUBISHI CNC 152 ...
Page 170: ...153 10 Data Backup and Restoration ...
Page 184: ...167 Appendix 1 Explanation of Parameters ...
Page 435: ...Appendix 1 Explanation of Parameters MITSUBISHI CNC 418 ...
Page 436: ...419 Appendix 2 Explanation of Alarms ...
Page 608: ...591 Appendix 3 Display on 7 segment LED ...
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