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1 SERVO PARAMETER DETAILS
1.7 Extension setting 3 servo parameters group ([Pr. PF_ _ ])
[Pr. PF25_SEMI-F47 function - Instantaneous power failure
detection time (Instantaneous power failure tough drive detection
time) (CVAT)]
Set the time until the occurrence of [AL. 010.1 Voltage drop in the control circuit power].
To comply with SEMI-F47 standard, it is not required to change the time from the initial value (200 ms).
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 turned off normally even if a value larger than 200 ms is set in this servo parameter.
This function is disabled when [Pr. PA20.2 SEMI-F47 function selection] is set to "0" (disabled).
[Pr. PF31_Machine diagnosis function - Friction estimate area
judgment speed at low speed (FRIC)]
Set the servo motor speed to divide the friction estimation area between low-speed and high-speed in the friction estimation
process of machine diagnosis.
When the maximum operation speed is under the rated speed, it is recommended to set half the value of the maximum
operation speed.
When "0" is set, the judgment speed is half of the rated speed.
The setting value will be clamped at the permissible maximum speed.
By setting [Pr. PF34.6 Friction estimate area judgment speed setting] to "1" (automatic setting), this servo parameter value will
be automatically calculated from the operation pattern during servo motor driving and overwrite the value.
Set a value larger than [Pr. PC07 Zero speed] for this servo parameter. If the value is equal to or lower than zero speed, the
friction estimation process does not function.
Initial value
Setting range
Setting method
Ver.
200 [ms]
30 to 500
Common
C4
Initial value
Setting range
Setting method
Ver.
0 [r/min], [mm/s]
0 to 65535
Each axis
C4
0 r/min
(0 mm/s)
Maximum speed in operation
Setting value of [Pr. PF31]
Operation pattern
Servo motor
speed
Forward direction
Reverse direction
Summary of Contents for MR-J5-B
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