Oriental motor BLH2D50-K - 6.6 Connecting external analog setting devices

10
Connection
6.5 Driver I/O circuit

Input signals circuit
Input signals of the driver are C-MOS inputs.
The signal state represents "ON: 0 to 0.5 V (L level)"
and "OFF: 4 to 5 V (H level)."
C
R
+5 V
10 kΩ
C-MOS
Driver internal circuit
0 V
Pin No.
7, 8, 9
10, 11
3
GND

Output signals circuit
Output signals of the driver are transistor open-collector
outputs. The signal state represents a state of "ON:
Carrying current" or "OFF: Not carrying current" for the
internal photocoupler rather than the voltage level of
the signal.
Driver internal circuit
4.5 to 26.4 VDC
0 V
0 V
Pin No.
1, 2
3
GND
R∗
*
Recommended resistance value when a current limiting resistor
R is connected:
For 24 VDC: 2.7 k
Ω
to 4.7 k
Ω
(1 W)
For 5 VDC: 560
Ω
to 820
Ω
(0.25 W)
Note
•
Be sure to suppress a current owing to the output circuit at 10 mA or less.
Connect a current limiting resistor R externally if the current exceeds this specied value.
•
When a relay (inductive load) is connected, provide a control measure for
the y-back voltage against the relay by connecting a diode. Or use a relay
with built-in ywheel diode.
1, 2
P
in No.
Inductive load
Fly
wheel diode
6.6 Connecting external analog setting devices
The rotation speed can be set using an external potentiometer (sold separately) or external DC voltage.

Using an external potentiometer
Connect to the pin No.4 to No.6 of the CN2.
External potentiometer
PAVR2-20K
(sold separately)
21
3
VH
VM
VL
I/O signal connecto
r
(CN2)
0 to 20 kΩ
Blue
Green
Yellow
6
5
4
Note
When a shielded cable is used for connection with the external potentiometer, connect shields to VL of the pin No.4
from near the I/O signal connector (CN2).