Mitsubishi Electric MR-JE-C, Instruction Manual

Page: 286 / 312

12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE
12 - 71
12.5.5 Analog override
POINT
When using the analog override in the point table method, enable OVR (Analog
override selection).
The following shows the functions in which the analog override can be used and
in which the analog override cannot be used.
Manual pulse generator operation in the manual operation mode
Homing mode
Test operation mode using MR Configurator2 (positioning operation/JOG
operation)
If the servo motor speed changed by the analog override value exceeds the
maximum speed of the servo motor, the servo motor speed is limited at the
maximum speed.
The servo motor speed can be changed with VC (Analog override). The following table shows signals and
parameters related to the analog override.
Item Name Remark
Analog input signal VC (Analog override)
Contact input signal OVR (Analog override selection)
Turning on OVR enables the setting
value of VC (Analog override).
Parameter [Pr. PC37 Analog override offset] -9999 to 9999 [mV]
(1) VC (Analog override)
Applying voltage (-10 to +10 V) to VC (Analog override) enables the changed values to be set
continuously from outside. The following shows the ratio of the actual speed to input voltage and set
speed.
-10 0 10 [V]
0
100
200
[%]
VC (Analog override voltage) applied voltage
OVR
DICOM
VC
LG
SD
Servo amplifier
OVR (Analog override selection)
VC (Analog override)
-10 V to +10 V
(Note)
24 V DC
Percentage of the actual speed
to
s
et
s
peed.
Note. This diagram shows sink input interface.