81
Model
Rated Input Voltage
Rated Load Voltage
Pin Arrangement
(1)
A42XY
12/24 VDC
12/24 VDC
1A
2A
3A
4A
5A
6A
7A
8A
1B
2B
3B
4B
5B
6B
7B
8B
9A
10A
11A
12A
13A
14A
15A
16A
9B
10B
11B
12B
13B
14B
15B
16B
Seen from front face
of the module
Pin
No.
Signal
Name
Pin
No.
Signal
Name
1A YD0 1B YD1
2A YD1 2B YD2
3A YD2 3B YD3
4A YD3 4B YD4
5A YD4 5B YD5
6A YD5 6B YD6
7A YD6 7B YD7
8A YD7 8B YD8
9A YSCN0 9B YSCN0
10A YSCN1 10B YSCN1
Output side
Y01
Y02
Y03
Y04
Y05
Y06
Y07
Y00
Y09
Y0A
Y0B
Y0C
Y0D
Y0E
Y0F
Y08
Y11
Y12
Y13
Y14
Y15
Y16
Y17
Y10
Y19
Y1A
Y1B
Y1C
Y1D
Y1E
Y1F
Y18
Y21
Y22
Y23
Y24
Y25
Y26
Y27
Y20
Y29
Y2A
Y2B
Y2C
Y2D
Y2E
Y2F
Y28
Y31
Y32
Y33
Y34
Y35
Y36
Y37
Y30
Y39
Y3A
Y3B
Y3C
Y3D
Y3E
Y3F
Y38
Output terminals
Pin No.
Internal
control
circuit
R
R
1A
1B
2A
2B
3A
3B
4A
4B
5A
5B
6A
6B
7B
7A
8A
8B
YD0
YD1
YD2
YD3
YD4
YD5
YD6
YD7
YSCN0
YSCN1
YSCN2
YSCN3
YSCN4
YSCN5
YSCN6
YSCN7
12/24 VDC
12/24 GDC
12/24 VDC
Internal
scan at
1/8th duty
9A
9B
10A
10B
11A
11B
12A
12B
13A
13B
14A
14B
15B
15A
16A
16B
Internal
control
circuit
11A YSCN2 11B YSCN2
12A YSCN3 12B YSCN3
13A YSCN4 13B YSCN4
14A YSCN5 14B YSCN5
15A YSCN6 15B YSCN6
* The power supply voltage (12/24 VDC) is applied in
the LED’s reverse direction.
If the peak inverse voltage insufficient, connect
protective diodes in series with each of the LEDs.
(see right)
16A YSCN7 16B YSCN7
Summary of Contents for Melsec A Series
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