Справочник Пользователя для Mitsubishi Electronics E60

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7. SERVO 
PARAMETERS 
7.4 MDS-R-Vx 
II - 193 
7.4 MDS-R-Vx
 
(1)  Details for servo parameters 
For parameters marked with a (PR) in the table, turn the NC power OFF after setting. After the power is turned 
ON again, the parameter is validated.  
!
CAUTION
 
!
  In the explanation on bits, set all bits not used, including blank bits, to "0". 
 
No. Items 
Details 
Setting 
range 
2201 
(PR) 
SV001 
PC1 
Motor side 
gear ratio 
1 to 32767 
2202 
(PR) 
SV002 
PC2 
Machine side 
gear ratio 
Set the motor side and machine side gear ratio. 
For the rotary axis, set the total deceleration 
(acceleration) ratio. 
Even if the gear ratio is within the setting range, the 
electronic gears may overflow and cause initial 
parameter error (servo alarm No. 37). 
1 to 32767 
2203 SV003 
PGN1 
Position loop 
gain 1 
Set the position loop gain. The standard setting is "33". 
The higher the setting value is, the more precisely the 
command can be followed and the shorter the positioning 
time gets, however, note that a bigger shock is applied to 
the machine during acceleration/deceleration. 
When using the SHG control, also set SV004 (PGN2) 
and SV057 (SHGC).  
1 to 200 
(rad/s) 
2204 SV004 
PGN2 
Position loop 
gain 2 
When using the SHG control, also set SV003 (PGN1) 
and SV057 (SHGC). 
When not using the SHG control, set to "0". 
0 to 999  
(rad/s) 
2205 SV005 
VGN1 
Speed loop 
gain 1 
Set the speed loop gain. 
Set this according to the load inertia size. 
The higher the setting value is, the more accurate the 
control will be, however, vibration tends to occur. 
If vibration occurs, adjust by lowering by 20 to 30%. 
The value should be determined to be 70 to 80% of the 
value at the time when the vibration stops. 
1 to 999 
2206 SV006 
VGN2 
Speed loop 
gain 2 
If the noise is bothersome at high speed during rapid 
traverse, etc, lower the speed loop gain. 
As shown below, set the speed loop gain of the speed 1.2 
times as fast as the motor's maximum speed, and use 
this with SV029 (VCS). 
When not using, set to "0". 
 
 
 
 
 
VGN1
VGN2
 
 
 
VCS
VLMT 
(Maximum speed*1.2)
 
-1000 to 1000 
2207 SV007 
VIL 
Speed loop 
delay 
compen- 
sation 
Set this when the limit cycle occurs in the full-closed loop, 
or overshooting occurs in positioning. 
When you set this parameter, make sure to set the torque 
offset (SV032 (TOF)).  When not using, set to "0". 
0 to 32767