Appendices
A-14
CJ2 CPU Unit Hardware User’s Manual
*1 The ON response time will be 120 µs maximum and OFF response time will be 400 µs maximum even if the
response times are set to 0 ms due to internal element delays.
Note Observe the following restrictions when connecting to a 2-wire sensor.
• Make sure the input power supply voltage is larger than the ON voltage (19 V) plus the residual voltage of
the sensor (approx. 3 V).
• Use a sensor with a minimum load current of 3 mA min.
• Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher.
Weight 110 g max.
Accessories None
Circuit Configuration
Terminal Connections
CN1 CN2
• The input power polarity can be
connected in either direction.
• Be sure to wire both pins 23 and
24 (COM0) of CN1, and set the
same polarity for both pins.
• Be sure to wire both pins 3 and 4
(COM1) of CN1, and set the same
polarity for both pins.
• The input power polarity can be con-
nected in either direction.
• Be sure to wire both pins 23 and 24
(COM2) of CN2, and set the same polar-
ity for both pins.
• Be sure to wire both pins 3 and 4 (COM3)
of CN2, and set the same polarity for
both pins.
IN0
IN15
COM0
SW
IN0
IN15
CN1
COM0
COM1
COM1
IN0
IN15
COM2
IN0
IN15
COM2
COM3
COM3
560 Ω
560 Ω
1000 pF1000 pF
5.6 kΩ
5.6 kΩ
CN2
to
to
to
to
Input indicator
Indicator
switching
circuit
Internal circuits
Internal circuits
Wd m+1
Wd m
Wd m+2
Wd m+3
Allocated
CIO word
Signal
name
0
10
20
30
40
50
60
70
0102030 405060
Ambient Temperature
8 points/common
(total: 26 points max.)
at 55°C
8 points/common
at 55°C
12 points/common
(total: 45 points)
at 55°C
Input voltage:
20.4 VDC
Input voltage:
26.4 VDC
Input voltage:
24 VDC
Number of simultaneously ON points
Number of Simultaneously ON Points vs.
Ambient Temperature Characteristic
64 points at 47°C
64 points at 35°C
64 points at 25°C
(°C)
1
NC
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
NC
39
2
4
NC
6
8
10
12
14
16
18
COM1
20
22
24
26
28
30
32
34
36
38
40
COM1
NC
COM0 COM0
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
IN9
IN10
IN11
IN12
IN13
IN14
IN15
IN8
IN9
IN10
IN11
IN12
IN13
IN14
IN15
24 VDC
24 VDC
Wd m+1
Wd m+1
Wd m
Wd m
Signal
name
Signal
name
Connec-
tor pin
Allocated
CIO word
Allocated
CIO word
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
NC
2
COM3
39
37
35
33
31
29
27
25
23
COM2
21
19
17
15
13
11
9
7
5
3
NC
1
COM3
COM2
NC NC
IN15
IN14
IN13
IN12
IN11
IN10
IN9
IN8
IN15
IN14
IN13
IN12
IN11
IN10
IN9
IN8
IN7
IN6
IN5
IN4
IN3
IN2
IN1
IN0
IN7
IN6
IN5
IN4
IN3
IN2
IN1
IN0
Wd m+3
Wd m+3
Wd m+2
Wd m+2
24 VDC
24
VDC
Signal
name
Signal
name
Connec-
tor pin
Allocated
CIO word
Allocated
CIO word