9 MANUFACTURER FUNCTIONS
9.6 Override
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9
Digital override
Digital override can be used with the point table method and indexer method.
To use the digital override function, set "Override selection" in [Pr. PT38] to "1".
When using digital override in the point table method or indexer method, enable bit 3 to bit 6 (C_OV0 to
C_OV3) of Control DI8 (2D08h).
The following shows the functions in which digital override can be used.
• Point table mode (pt)/Indexer mode (idx)
• Jog mode (jg)
• Home position return mode (hm) in point table method/indexer method
• Automatic positioning to home position function in point table mode (pt)
The following shows the functions in which digital override cannot be used.
• Test operation mode in MR Configurator2 (Positioning operation/jog operation)
If the servo motor speed changed by the digital override value exceeds the maximum speed of the servo
motor, the servo motor speed is limited by the maximum speed of the servo motor.
The actual servo motor speed is the result of multiplying the command speed by the digital override value selected by bits 3 to
6 of Control DI8 (2D08h).
Ex.
When [Pr. PT42] is set to 50 and [Pr. PT43] is set to 5
Servo parameter ([Pr. PT38])
Control DI8 (2D08h)
Description
C_OV3
C_OV2
C_OV1
C_OV0
_ _ 1 _
0
0
0
0
100 [%] of parameter-set speed
0
0
0
1
50 [%] of parameter-set speed
0
0
1
0
55 [%] of parameter-set speed
0
0
1
1
60 [%] of parameter-set speed
1
1
0
1
110 [%] of parameter-set speed
1
1
1
0
115 [%] of parameter-set speed
1
1
1
1
0 [%] of parameter-set speed