Operation
−32−
8.2 Basic operation
Speed setting
Model Setting range
BLV510
0, 100 to 3000 r/min
BLV620
BLV640
0, 100 to 4000 r/min
•
Setting by internal potentiometer
Use an insulation screwdriver to turn the internal potentiometer (VR1).
Turn the potentiometer clockwise to increase the speed.
Factory setting: 0 r/min
Slow
Fast
•
Setting by external potentiometer (sold separately)
Connect the external potentiometer (sold separately) to the I/O
signal connector (CN4) of the driver.
If the M0 input is turned ON, the external potentiometer is enabled.
Turning the external potentiometer in the clockwise direction
increases the speed.
CN4
12 VM input
11 VL input
FastSlow
123
13 VH input
This gure is the CN4 connector
viewed from the driver front side.
500
1000
1500
2000
2500
3000
3500
4000
Motor shaft speed [r/min]
0 10080604020
External speed potentiometer scale
External potentiometer vs. speed
characteristics (representative values)
BLV510
BLV620, BLV640
Note
When using the external potentiometer, turn the basic function switch (SW1-No.2) OFF.
•
Setting by external DC voltage
The speed can be set using 0 to 5 VDC or 0 to 10 VDC of external
DC voltage.
Select the basic function switch (SW1-No.2) to set which voltage
to be used. 0 to 5 VDC is set when the switch is set to the OFF
position, and 0 to 10 VDC is set when set to the ON position.
Factory setting: 5 VDC (OFF)
For the external voltage, use a DC power supply (0 to 5 VDC or 0
to 10 VDC) with reinforced insulation on both the primary side
and secondary side, and connect it to the I/O signal connector
(CN4).
Basic function switch
SW1-No.2
ON: 0 to 10 VDC
OFF: 0 to 5 VDC
The input impedance between the VM input and VL input is
approximately 14 k
Ω
when the basic function switch (SW1-No.2) is
ON, and approximately 47 k
Ω
when OFF. The VL input is connected
to IN-COM inside the driver.
0 to 5 VDC
or
0 to 10 VDC
1 mA or more
External DC power supply
CN4
12 VM input
11 VL input
This gure is the CN4 connector
viewed from the driver front side.
0
500
1000
1500
2000
2500
3000
3500
4000
24681357 109
External DC voltage [V]
External DC voltage vs. speed characteristics
(representative values)
Motor shaft speed [r/min]
10 VDC
5 VDC
BLV510
BLV620, BLV640
Note
Be sure to use the external DC voltage at 5 VDC or less or 10 VDC or less. When connecting the external DC
power supply, make sure the polarities are correct. If the polarities are reversed, the driver may be damaged.
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