3.2. Connecting Input Signal
3.3. Connecting Various Output Signals
3.3.1.
Relay Contact Output Unit
3.3.2.
Photocoupler Output Unit
3.3.3.
BCD Unit
Instruction Manual for MODEL A7X18-X(Temperature Measurement) 2/12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Term.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Name
P.SEL1
P.SEL2
P.SEL3
S/H
PH
DZ
COM
HH a
c
HI a
c
GO a
LO a
c
LL a
Description
Pattern Select terminals. Enabled when they have the same
potential as, or are shorted with, terminal COM.
* They are disabled unless pattern select is set up for terminal
control using condition data.
Common terminal for external control. (It has the same potential as input LO.)
The a-contact output terminal of HH output relay
COM terminal for HH and HI output relays
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
OFF
ON
ON
OFF
ON
OFF
ON
Start/Hold terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
Peak Hold terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
Digital Zero terminal. Enabled when it has the same potential
as, or is shorted with, terminal COM.
* This terminal is disabled unless digital zero is set up for
terminal control using condition data.
The a-contact output terminal of HI output relay
The a-contact output terminal of GO output relay
The a-contact output terminal of LO output relay
The a-contact output terminal of LL output relay
COM terminal of GO output relay
COM terminal for LO and LL output relays
Adaptable wire: AWG24 to AWG16
Pattern1
Pattern2
Pattern3 Pattern4 Pattern5 Pattern6 Pattern7 Pattern8
P1
P2
P3
Recommended torque : 0.18Nm
Term.
No.
Name
1
P.SEL1
2
P.SEL2
3
P.SEL3
4
S/H
5
PH
6
DZ
7
COM
8
HH c
9
eCOM
10
HI c
11
eCOM
12
GO c
13
LO c
14
eCOM
15
LL c
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Description
Pattern Select terminals. Enabled when they have the same
potential as, or are shorted with, terminal COM.
* They are disabled unless pattern select is set up for terminal
control using condition data.
Common terminal for external control. (It has the same potential
as input LO.)
Start/Hold terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
Peak Hold terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
Digital Zero terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
* This terminal is disabled unless digital zero is set up for
terminal control using condition data.
P1
P2
P3
ON
OFF
Pattern7
ON
ON
OFF
Pattern6
ON
OFF
Pattern5
ON
OFF
Pattern4
ON
OFF
OFF
Pattern3
OFF
ON
Pattern2
OFF
Pattern1
ON
Pattern8
Adaptable wire: AWG24 to AWG16
Collector output terminal of HH output photocoupler
Common emitter terminal for HH and HI output photocouplers
Collector output terminal of HI output photocoupler
Collector output terminal of LO output photocoupler
Collector output terminal of LL output photocoupler
Emitter terminal of GO output photocoupler
Common emitter terminal for LO and LL output photocouplers
Collector output terminal of GO output photocoupler
Recommended torque : 0.18Nm
Term.
No.
Name
Description
1-4
10
0
1-8
5-8
9-12
13-16
17
18
19
20
21,22
26
NC
27,28
COM
29
HH c
Bit-1 to bit-8 outputs of BCD 10
0
digit
* For models A7X1X-3 and -4, terminals 29 to 34 are NC. Connect nothing to these terminals.
Connect nothing to this terminal.
10
1
1-8
10
2
1-8
10
3
1-8
POL
OVER
PC
ENABLE
DG
30
HI c
31
GO c
32
LO c
33
LL c
34
eCOM
Collector output terminal of HI output photocoupler
Collector output terminal of GO output photocoupler
Collector output terminal of LO output photocoupler
Collector output terminal of LL output photocoupler
Photocoupler's common emitter terminal
Bit-1 to bit-8 outputs of BCD 10
1
digit
Bit-1 to bit-8 outputs of BCD 10
2
digit
Bit-1 to bit-8 outputs of BCD 10
3
digit
BCD polarity output
Collector output terminal of HH output photocoupler
Common terminal for external control. (It has the same potential as input LO.)
BCD overrange warning output
BCD printout command output
Common terminal for BCD outputs
EN
AB
LE
34
33
e
.C
O
M
L
O
C
H
I
C
C
O
M
(N
C
)
L
L
C
G
O
C
H
H
C
C
O
M
D
Z
S
/H
D
G
P
C
P
O
L
P
H
D
G
O
V
E
R
2
1
10
2 8 2 8 2 8 2 8
1 4 1 4 1 4 1 4
0
10
1
10
2
10
3
10
0
10
1
10
2
10
3
23
S/H
Start/Hold terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
24
PH
Peak Hold terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
25
DZ
Digital Zero terminal. Enabled when it has the same potential as,
or is shorted with, terminal COM.
* This terminal is disabled unless digital zero is set up for
terminal control using condition data.
BCD enable terminal. BCD output becomes high impedance or
transistor is turned OFF when this terminal has the same
potential as, or is shorted with, terminal DG.
BCD Connector :
HIF-3BA-34PA-2.54DS
Attachment Connector :
HIF-3BA-34D-2.54R
* In the A7000 series, the range of use needs to be set using scaling data.
The unit is set to the thermocouple's KA ranges at factory shipment.
Burnout warning
ー
Thermocouple :
“
B.OUT
”
is displayed in case of a break in TC HI or TC LO
RTD :
“
OVER
”
is displayed in case of a break in RTD A or RTD B
“
B.OUT
”
is displayed in case of a break in RTD C
Note : Analog output produced in the event of burnout becomes minimal during B.OUT display or
becomes maximal during OVER display.
Description
Resistance element conductor connection terminal
Thermocouple's negative leg connection terminal
Thermocouple's positive leg connectuin terminal
Connect nothing to this terminal.
Connection terminal of a conductor resistance rejection wire
Resistance element conductor connection terminal
Applicable crimp terminal
5.8 or less
5.8 or less
①
②
③
④
⑤
⑥
Terminal
No.
1
2
3
4
5
6
Name
TC HI
TC LO
NC
RTD A
RTD B
RTD C
Recommended torque : 0.5Nm
