Mitsubishi Electric MR-J2S-*B Series Instruction Manual page 92

5. PARAMETERS
Classifi-
No. Symbol
cation
14 VG1 Speed loop gain 1
Normally this parameter setting need not be changed. Higher setting
increases the response level but is liable to generate vibration and/or
noise.
When auto tuning mode 1,2 and interpolation mode is selected, the
result of auto tuning is automatically used.
15 PG2 Position loop gain 2
Used to set the gain of the position loop.
Set this parameter to increase position response to load disturbance.
Higher setting increases the response level but is liable to generate
vibration and/or noise.
When auto tuning mode 1 2, manual mode and interpolation mode
is selected, the result of auto tuning is automatically used.
16 VG2 Speed loop gain 2
Set this parameter when vibration occurs on machines of low
rigidity or large backlash.
Higher setting increases the response level but is liable to generate
vibration and/or noise.
When auto tuning mode 1 2 and interpolation mode is selected, the
result of auto tuning is automatically used.
17 VIC Speed integral compensation
Used to set the constant of integral compensation.
When auto tuning mode 1 2 and interpolation mode is selected, the
result of auto tuning is automatically used.
18 NCH Machine resonance suppression filter 1 (Notch filter)
Used to select the machine resonance suppression filter.
(Refer to Section 7.2.)
Feed forward gain
19 FFC
Set the feed forward gain. When the setting is 100%, the droop
pulses during operation at constant speed are nearly zero. However,
sudden acceleration/deceleration will increase the overshoot. As a
guideline, when the feed forward gain setting is 100%, set 1s or more
as the acceleration/deceleration time constant up to the rated speed.
Name and Function
0
Notch frequency selection
Setting Frequency Setting Frequency
00 Invalid 08 562.5
01 4500 09 500
02 2250 0A 450
03 1500 0B 409.1
04 1125 0C 375
05 900 0D 346.2
06 750 0E 321.4
07 642.9 0F 300
Notch depth selection
Setting
0
1
2
3
Setting Frequency Setting
10 281.3 18
11 264.7 19
12 250 1A
13 236.8 1B
14 225 1C
15 214.3 1D
16 204.5 1E
17 195.7 1F
Depth Gain
40dB
Deep
14dB
to
8dB
Shallow
4dB
5 - 7
Initial
Value
7kW or
less:177
11kW or
more:96
7kW or
less:35
11kW or
more:19
7kW or
less:817
11kW or
more:455
7kW or
less:48
11kW or
more:91
0
Frequency
187.5
180
173.1
166.7
160.1
155.2
150
145.2
0
Setting
Unit
Range
rad/s 20
to
5000
rad/s 1
to
1000
rad/s 20
to
20000
ms 1
to
1000
Refer to
name
and
function
column.
% 0
to
100