7 Operation
−42−
Setting by external potentiometer
This potentiometer is used when the speed is set away from the driver or when
two-step speed switching is performed in combination with the internal
potentiometer.
Use the accessory PAVR-20KZ as the external potentiometer.
Clockwise rotation will increase the set speed.
0 20406080100
500
1000
1500
2000
2500
3000
3500
Speed
∗
[r/min]
External potentiometer graduation
External potentiometer graduation
-
speed characteristics (typical value)
External potentiometer
PAVR-20KZ (sold separately)
1
3
HighLow
21
3
6
5
4
VRH Blue
VRM Green
VRL Yellow
I/O signals
connector (CN2)
∗ Indicates the speed of the motor alone. The speed of the gear output shaft of a geared type or
combination type is obtained by dividing the motor speed by the gear ratio.
To drive the motor at the speed set on the external potentiometer, turn off the
INT.VR/EXT input.
• To set the running speed only by the external potentiometer, there is no problem if
the INT.VR/EXT input is not connected.
• To perform operation by switching the motor running speed, use the INT.VR/EXT
to switch the external potentiometer and internal potentiometer.
Note
To use a shielded cable for connection with the external potentiometer,
connection should be made close to the I/O signals cable connector. Connect
the shielded wire to the pin No.3 GND.
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