Analog Override - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

2. SIGNALS AND WIRING

2.4 Analog override

You can change the servo motor speed by using VC (Analog override). The following table shows signals
and parameters related to the analog override.
Analog input signal
Contact input signal
Parameter
(1) VC (Analog override)
You can continuously set changed values from outside by applying voltage (-10 V to +10 V) to VC
(Analog override). The following shows percentage of the actual speed to input voltage and set speed.
VC (Analog override voltage) applied voltage
POINT
The override function has two types. One is analog override by using analog
voltage input and another is digital override by using parameter settings.
Target method of analog override: Point table method/Program method
Target method of digital override: Indexer method
OVR (Analog override selection) is for the analog override. The digital override
does not depend on OVR (Analog override selection).
Refer to [Pr. PT38], [Pr. PT42], and [Pr. PT43] for the digital override.
When using the analog override in the point table method or program method,
enable OVR (Analog override selection).
The following shows functions whether usable or not with the analog override.
(1) Analog override usable
Automatic operation mode (point table method/program method)
JOG operation in the manual operation mode
Automatic positioning to home position function in the point table method
(2) Analog override unusable
Manual pulse generator operation in the manual operation mode
Home position return mode
Test operation mode using MR Configurator2 (positioning operation/JOG
operation)
Item
VC (Analog override)
OVR (Analog override selection)
[Pr. PC37 Analog override offset]
[%]
200
100
0
-10 0 10 [V]
2 - 38
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Name
Turning on OVR will enable VC
(Analog override) setting value.
-9999 to 9999 [mV]
OVR (Analog override selection)
VC (Analog override)
Note. This diagram shows sink input interface.
Remark
Servo amplifier
OVR
DICOM
24 V DC
VC
(Note)
LG
-10 V to +10 V
SD