Mitsubishi Electric Melservo-J3 Series MR-J3-B, Instruction Manual

Page: 732 / 802

17 - 47
17. SPEED CONTROL OPERATION
No. Symbol Name and function
Initial
value
Unit
Setting
Range
PB18 LPF Low-pass filter setting
Set the low-pass filter.
Setting parameter No.PB23 (Low-pass filter selection) to "
0 "
automatically changes this parameter.
When parameter No.PB23 is set to "
1 ", this parameter can be set
manually.
3141 rad/s 100
to
18000
PB19 Not used in speed control operation.
Do not change the parameter.
100.0
PB20 100.0
PB21 For manufacturer setting 0.00
PB22 Do not change this value by any means. 0.00
PB23 VFBF Low-pass filter selection (Refer to section 10.5.)
Select the low-pass filter.
0 0 0
Low-pass filter selection
0: Automatic setting
1: Manual setting (parameter No.PB18 setting)
0000h Refer to
the Name
and
function
column.
PB24 Not used in speed control operation.
Do not change the parameter.
0000h
PB25 For manufacturer setting
Do not change this value by any means. 0000h
PB26 *CDP Gain switching selection
Select the gain switching condition. (Refer to section 10.6.)
0 0
Gain switching condition
0: Valid at more than condition (Valid when gain
switching (RY(n+2)8) is on)
1: Valid at less than condition (Valid when gain
switching (RY(n+2)8) is off)
Gain switching selection
The gain is switched depending on the setting
value of parameter No.PB29 to PB32 with
the following conditions.
0: Invalid
1: Gain switching (RY(n+2)8)
2: Command frequency (Parameter No.PB27 setting)
3: Droop pulse value (Parameter No.PB27 setting)
4: Servo motor speed (Parameter No.PB27 setting)
0000h Refer to
the Name
and
function
column.
PB27 CDL Gain switching condition
Set the value of the gain switching condition (command frequency, droop
pulses, or servo motor speed) selected in parameter No.PB26.
The set value unit differs depending on the switching condition item. (Refer to
section 10.6.) 10 kpps
pulse
r/min
0
to
9999
PB28 CDT Gain switching time constant
Set the time constant at which the gains will change under the conditions set
in parameters No.PB26 and PB27. (Refer to section 10.6.) 1 ms 0
to
100
PB29 GD2B Load to motor inertia ratio after gain switching
Set the load to motor inertia moment when the gain switching is enabled.
This parameter is enabled when the auto tuning is disabled (parameter
No.PA08:
3).
7.0 Multiplier 0
to
300.0