Improvement Of Characteristics During Acceleration/Deceleration - Mitsubishi Electric MELDAS MDS-R Series Specifications And Instruction Manual

9-3-6 Improvement of characteristics during acceleration/deceleration

(1) SHG control (option function)
Because SHG control has a smoother response during acceleration/deceleration than conventional
position controls, the acceleration/deceleration torque (current FB) has more ideal output
characteristics. (A constant torque is output during acceleration/deceleration.) The peak torque is kept
low by the same acceleration/deceleration time constant, enabling the time constant to be shortened.
Refer to item "(3) SHG control" in section "9-2-3 Position loop gain" for details on setting SHG control.
No.
SV003
(SV049) (PGN1sp)
SV004
(SV050) (PGN2sp)
SV057
(SV058) (SHGCsp)
SV008
SV015
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3000
Speed command
0
(r/min)
-3000
200
Current FB
0
(stall current%)
-200
Acceleration/deceleration characteristics during conventional control
3000
Speed command
0
(r/min)
-3000
200
Current FB
0
(stall current %)
-200
Acceleration/deceleration characteristics during SHG control
Abbrev. Parameter name
PGN1
Position loop gain 1
PGN2
Position loop gain 2
SHGC
SHG control gain
Speed loop lead
VIA
compensation
Acceleration rate
FFC
feed forward gain
SHG control is an optional function. If the option setting is not provided with the
NC, alarm 37 (at power ON), warning E4, or error parameter No. 104 (2304 for
POINT
M60S/E60 Series NC) will be output.
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9. Adjustment
Setting
Setting example
ratio
1 23 26 33 38 47
8
62 70 86 102 125
3
6 140 160 187 225 281
Set 1900 as a standard value during SHG control.
Set 100 as a standard value during SHG control.
9 - 26
Time
Time
Time
Time
Explanation
Always set a combination of 3 parameters.
Setting
range
1 to 200
0 to 999
0 to 1200
1 to 9999
0 to 999