6 Setting the running speed
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6 Setting the running speed
In addition to the driver internal potentiometer, the external potentiometer or
external DC voltage can be used to set the motor running speed. The motor speed
range is from 100 to 3000 r/min for the case of the motor alone.
Two running speeds can be set by combining the internal potentiometer and external
potentiometer, or the internal potentiometer and external DC voltage.
Setting by internal potentiometer
This potentiometer is used when running speed setting is not frequently changed, or
when two-step speed switching is performed in combination with external speed
setting.
Use a precision screw driver for this adjustment. Clockwise rotation will increase
the set speed.
The speed is set to 0 r/min at time of shipment.
When the motor is driven at the speed set by the internal potentiometer, turn on the
INT.VR/EXT input (L level).
When you want to use only the internal speed setting potentiometer to set the
operation speed, you do not have to connect the VRH, VRM and VRL.
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 optional
PAVR-20KZ
as the external potentiometer.
Clockwise rotation will increase the set speed.
0
20
40
60
80
100
500
1000
1500
2000
2500
3000
3500
Speed
∗
[
r/
min
]
External potentiometer graduation
External potentiometer graduation -
speed characteristics (typical value)
1
3
High
Low
2
1
3
6
5
4
VRH
VRM Green
VRL Yellow
Blue
External potentiometer
PAVR-20KZ
(Option)
Input/output signal
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 (H level).
