Nomenclature - Mitsubishi Electric MELSEC A Series Manual

4. PRE-OPERATION SETTINGS AND PROCEDURES
4.2

Nomenclature

Test mode terminals
Prior to offset/gain setting, connect
terminals 1 and 3 together.
A
68ADN
RUN
CH.
OFFSET
TEST 1
3
V.
C I.
H
COM
1
SLD
V.
I.
C
H
COM
2
SLD
V.
I.
C
COM
H
3
SLD
V.
I.
C
COM
H
4
SLD
V.
I.
C
H COM
5
SLD
V.
I.
C
COM
H
6
SLD
V.
C I.
H
COM
7
SLD
V.
I.
C
COM
H
8
SLD
ANALOG
GND
FG
A D
0
10 V
0~20mA
Switches marked
Terminal
Signal Name
No.
1 TEST
2 Open
3 TEST
4 Open
5 V+
C
6 l+
H
7 COM
1
8 SLD
9 V+
C
10 l+
H
11 COM
2
12 SLD
RUN LED
Indicates the operating status of the A68ADN.
(Normal mode)
ON
GAIN
Flashing : Write data error
OFF
(Test mode)
ON
1
2
OFF
3
4
5
6
7
8
Channel select switch
9
10
Used to select a channel for offset and gain adjustment
11
(No processing at positions 0 and 9.)
12
13
14
15
16
OFFSET switch
17
18
At the ON position, the analog input value is stored as the
19
offset value.
20
21
22
23
24
GAIN switch
25
26
At the ON position, the analog input value is stored as the
27
gain value.
28
29
30
31
32
33
34
35
36
37
38
are valid only in the test mode. Section 4.3 gives details
Terminal
Signal Name
No.
13
C
14
H
15
3
16
17
C
18
H
19
4
20
21
C
22
H
23
5
24
4 − 2
MELSEC-A
: During normal operation
: 5V power OFF or watchdog timer error
: When the OFFSET switch or the GAI
switch is in the ON position.
: When both the OFFSET switch and the
GAIN switch are in the OFF position.
Terminal
No.
V+ 25
l+ 26
COM 27
SLD 28
V+ 29
l+ 30
COM 31
SLD 32
V+ 33
l+ 34
COM 35
SLD 36
37
38
Signal Name
V+
C
l+
H
COM
6
SLD
V+
C
l+
H
COM
7
SLD
V+
C
l+
H
COM
8
SLD
ANALOG GND
FG