Mitsubishi Electric MR-J4-10B(-RJ) Instruction Manual page 195

5. PARAMETERS
No. Symbol
PF23 OSCL1 Vibration tough drive - Oscillation detection level
This is used to set a filter readjustment sensitivity of [Pr. PB13 Machine resonance
suppression filter 1] and [Pr. PB15 Machine resonance suppression filter 2] while the vibration
tough drive is enabled.
However, setting "0" will be 50%.
Example: When you set "50" to the parameter, the filter will be readjusted at the time of 50%
PF24 *OSCL2 Vibration tough drive function selection
Setting
digit
_ _ _ x
_ _ x _
_ x _ _
x _ _ _
PF25 CVAT SEMI-F47 function - Instantaneous power failure detection time
Set the time of the [AL. 10.1 Voltage drop in the control circuit power] occurrence.
This parameter setting range differs depending on the software version of the servo amplifier
as follows.
Software version C0 or later: Setting range 30 ms to 200 ms
Software version C1 or earlier: Setting range 30 ms to 500 ms
To comply with SEMI-F47 standard, it is unnecessary to change the initial value (200 ms).
However, when the instantaneous power failure time exceeds 200 ms, and the instantaneous
power failure voltage is less than 70% of the rated input voltage, the power may be normally
turned off even if a value larger than 200 ms is set in the parameter.
To disable the parameter, select "Disabled (_ 0 _ _)" of "SEMI-F47 function selection" in [Pr.
PA20].
PF31 FRIC Machine diagnosis function - Friction judgment speed
Set a (linear) servo motor speed to divide a friction estimation area into high and low for the
friction estimation process of the machine diagnosis.
However, setting "0" will be the value half of the rated speed.
When your operation pattern is under rated speed, we recommend that you set half value to
the maximum speed with this.
Forward rotation
direction
Servo motor
speed
Reverse rotation
direction
Name and function
or more oscillation level.
Oscillation detection alarm selection
0: [AL. 54 Oscillation detection] will occur at oscillation detection.
1: [AL. F3.1 Oscillation detection warning] will occur at oscillation
detection.
2: Oscillation detection function disabled
Select alarm or warning when a oscillation continues at a filter
readjustment sensitivity level of [Pr. PF23].
The digit is continuously enabled regardless of the vibration tough
drive in [Pr. PA20].
For manufacturer setting
0 r/min
(0 mm/s)
Operation pattern
Explanation
Maximum speed in operation
[Pr. PF31] setting
5 - 52
Initial
Setting
value
range
[unit]
50 0 to 100
[%]
Refer to the
"Name and
Initial
function" column.
value
0h
0h
0h
0h
200 30 to
[ms] 500
0 0 to
[r/min]/
permiss
[mm/s] -ible
speed