Oriental motor BLHM450K Series - External Control Connections; Analog Setting Device Integration

11
Connection
6.6 Connecting external analog setting devices
Using an external potentiometer (sold separately), external DC voltage, or PWM signal input, the rotation speed or
torque limiting value can be set.

Using an external potentiometer
Connect to the pin No.6 to No.8 of the CN2.
External potentiometer
PAVR2-20K
(sold separately)
21
3
VH
VM
VL
I/O signal connecto
r
(CN2)
0 to 20 kΩ
Gray
Purple
Blue
8
7
6
Note
When a shielded cable is used for connection with the external potentiometer, connect shields to VL of the pin No.6
from near the I/O signal connector (CN2).

Using external DC voltage
For the external voltage, use a DC power supply (0 to 5 VDC) with
reinforced insulation on its primary and secondary sides, and
connect to the pin No.6 and No.7 of the CN2.
Input impedance between the VM input and VL input is
approximately 47 k
Ω
.
The VL input is connected to GND inside the driver.
External DC
power supply
0 to 5 VDC
1 mA or more
VM
VL
I/O signal connector
(CN2)
Purple
Blue
7
6
+
–
Note
•
Be sure to use the voltage of an external control device at 5 VDC or lower.
When connecting an external control device, make sure the polarities are correct. If the polarities are reversed, the
driver may be damaged.
•
When a shielded cable is used for connection with the external control device, connect shields to VL of the pin No.6
from near the I/O signal connector (CN2).

Using PWM signal input
When the operation data is set using the PWM signal input, connect
the PWM signal lines to the pin No.6 and No.7 of the CN2.
Refer to the USER MANUAL for details about the PWM signal.
PWM signal
VM
VL
I/O signal connector
(CN2)
Purple
Blue
7
6
+
–
6.7 Connecting the USB cable (CN4)
Connect the USB cable to the USB connector when
using the
MEXE02
.
Specications of USB cable
Specications USB2.0 (full speed)
Cable
Length: 3 m (9.8 ft.) or less
Shape: A to mini B
Note
•
Connect the driver and PC directly with the USB cable without using a hub or extension cable.
•
In large electrically noisy environments, use the USB cable with a ferrite core or install a ferrite core to the USB cable.