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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
10
Override (VC) application voltage
(2) Override selection (OVR)
Used to make the override (VC) valid or invalid.
Override selection
(OVR)
Override (VC)
10 to 10V
Using the override selection (OVR), choose a change value as follows:
External Input Signal
OVR
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
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POINT
When using the override (VC), make the override selection (OVR) device
available.
Override (VC)
Override selection (OVR)
No.25 override offset
Override selection (OVR)
Override (VC)
0
10
[V]
Servo amplifier
Speed Change Value
0
No change
1
Override (VC) setting is made valid.
999 to 999mV.
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Name
Set-up Software setting required.
999 to 999mV
Servo amplifier
OVR
SG
VC
LG
10 to 10V
SD
3 - 13
Remarks
Motor
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