Function Enabling Conditions - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.29 Real-Time Tuning 1 (Speed Gain)

14.29.2 Function Enabling Conditions

In order to utilize this function, the following conditions shall be met in every servo axis and spindle motor. This function allows
us to determine whether making the function valid or invalid in every axis and spindle.
Servo axis
 Set the parameter as follows.
#2205 VGN1 (Speed loop gain 1)
#2206 VGN2 (Speed loop gain 2)
#2237 JL (Load inertia scale)
#2399 RTGM (Real-time tuning: maximum adaptive gain multiplier)
#2400 RTJX (Real-time tuning: maximum adaptive inertia ratio)
 "Real-time tuning 1: Speed control gain changeover hold-down command signal (VGHLDC1: YB80)" is OFF.
When meeting the above valid conditions, the speed control gain is switched in response to inertia.
 In case that machine resonance is induced when mounting a workpiece, set the resonance filter in advance.
(Related parameters: #2233, #2238, #2246, #2287, #2288)
 If the estimated load inertia ratio is larger than "#2400 RTJX (real-time tuning: maximum adaptive inertia ratio)",the magnifi-
cation of speed control gain will be the value set in "#2399 RTGM (real-time tuning: maximum adaptive gain multiplier)".
 If the estimated load inertia ratio is smaller than "#2237 JL" (load inertia scale), the magnification of speed control gain will
be 1[time].
 If not meeting the conditions, the speed control gain based on "#2205 VGN1 (speed loop gain1)" or "#2208 VGN2 (speed
loop gain 2)" will be adapted in operation.
Spindle
 Set the parameter as follows.
#13005 VGN1 (Speed loop gain 1)
#13008 VGN2 (Speed loop gain 2)
#13037 JL (Load inertia scale)
#13199 RTGM (Real-time tuning: maximum adaptive gain multiplier) Set the value which is NOT zero
#13200 RTJX (Real-time tuning: maximum adaptive inertia ratio)
 Set the parameter according to the spindle mode. (When power is turned OFF and ON, it is switched to valid or invalid)
#13035 SFNC3/bit6 (Spindle function 3)
#13036 SFNC4/bit6 (Spindle function 4)
○ : function valid ×: function invalid
 "Real-time tuning 1: Speed control gain hold-down command (VGHLDC: Y18CA)" signal is OFF.
IB-1501668-B
Parameter
Parameter
Parameter
Method of setting
Setting under the condition without a workpiece
Setting under the condition without a workpiece
Setting load inertia ratio under the condition without
a workpiece.
(Rotary motor: 100 or over)
(Linear motor: inertia weight or over)
Set the value which is NOT zero
Set the value larger than #2237
Method of setting
Setting under the condition without a workpiece
Setting under the condition without a workpiece
Setting load inertia ratio under the condition without
a workpiece.
Set the value larger than #13037
Spindle mode
Non-interpola-
Interpolation
tion type
0 ×
○
1
○ ○
0 ×
○
1 ×
○
770
Spindle syn-
chronization
×
×
×
○