Omron CJ-Series Operation Manual page 58

Wiring Examples
!Caution When the output is being used as a pulse output, connect a load that requires
Connection Example 2
CJ1M CPU Unit
24-V DC
power
supply for
outputs
CW pulse
output
(Pulse
output)
CCW pulse
output
(Direction
output)
Note The terms in parentheses are for pulse + direction outputs.
an output current between 7 and 30 mA. The Unit's internal components may
be damaged if the current exceeds 30 mA.
If the current is below 7 mA, the output waveform's rising edge and falling
edge will be delayed and the output frequency ratings may not be met. If the
load requires less than 7 mA, install a bypass resistor so that the circuit draws
a current greater than 7 mA (10 mA is recommended.)
Use the following equations to determine the bypass resistor requirements.
V
CC
R ≤
− I
I
OUT
2
V
CC
Power W ≥
R
Circuit Example
CJ1M CPU Unit
24-V DC 5-V DC
power power
supply supply
− −
+ +
37
31/33
(31/32)
32/34
(33/34)
39, 40
V : Output voltage (V)
CC
IN
I : Output current (A)
OUT
× 4 (Tolerance)
I : Driver input current
W
R: Bypass resistance (Ω)
Power
supply
V
CC
−
+
I
OUT
←
Bypass resistor
Section 3-3
Motor driver
(5-V input type)
(+)
(−)
(+)
(−)
(7 to 30 mA)
↓ R
I
IN
Driver
39