Override - Mitsubishi Electric MR-J2S-CP Instruction Manual

3. SIGNALS AND WIRING

3.4.3 Override

The override (VC) may be used to change the servo motor speed. The following table lists the signals and
parameter related to the override.
Item
Analog input signal
Contact input signal
Parameter
(1) Override (VC)
By applying a voltage ( 10 to 10V) to the override (VC) terminal, change values can be set from
outside consecutively. The following graph shows the relationship between the input voltage and the
ratio of actual speed to preset speed.
[%]
200
100
0
0
10
Override (VC) application voltage
(2) Override selection (OVR)
Used to make the override (VC) valid or invalid.
Servo amplifier
Override selection
(OVR)
Override (VC)
10 to 10V
Using the override selection (OVR), choose a change value as follows.
(Note)
External input signal
OVR
0
1
Note. 0 : Off (open) across OVR-SG
1 : On (shorted) across OVR-SG
(3) Override offset (parameter No.25)
Using parameter No.25, the offset voltage can be set relative to the input voltage for the override (VC).
The setting is between
POINT
When using the override (VC), make the override selection (OVR) device
available.
Name
Override (VC)
Override selection (OVR)
No.25 override offset
Override selection (OVR)
Override (VC)
10
[V]
Speed change value
No change
Override (VC) setting is made valid.
999 to 999mV.
MR Configurator (servo configuration software)
setting required.
999 to 999mV
Servo amplifier
OVR
SG
VC
LG
10 to 10V
SD
Motor
3 - 16
Remarks