YOKOGAWA YewSeries 80 STED Style S, User Manual

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3-2
IM 01B04J01-02E
3.1 External Wiring
(a) To prepare cables for connection to each terminal, install crimp-on solderless lugs for 4
mm screw on the end of each cable.
(b) Draw the internal unit out from the rack case.
(c) Connect the cables to the correct terminals by referring to Table 3-1.
(d) Replace the internal unit into the rack case after completing the wiring.
(e) The reference junction block (RJC) for STED-2 or STED-7 type should be securely
installed to the screw on terminal 6.
(f) Always replace the terminal cover after completing the wiring.
The terminal cover cannot be replaced if the internal unit is not installed in the rack
case. The terminal cover should be securely replaced because it has the function of
locking the internal unit.
K J
H
F
D
C
B
A
8
7
6
5
4
3
2
1
OUT
IN
Terminal arrangement
Figure 3-1 Terminal Layout
Table 3-1 Terminal Connections
Terminal
Designation
Description
A +
Output 1 (1 to 5 V DC)
B -
C +
Output 3 (4 to 20 mA DC)
D -
F +
Output 2 (1 to 5 V DC)
H -
J
K
Do not connect to the output terminal when the terminal is not in use.
Terminal
Designation
Description
Terminal
Designation
Description Terminal
Designation Description
STED-1 and STED-2 STED-3 STED-4
1 +
mV DC input or
thermo- couple
input
1 1
2 - 2 2
3 3 3
4 4 4
5 5 5
6
(RJC block
installation terminal)
6 6
7 7 7
8 8 8
For STED-7 type, select one input from mV DC, thermocouple or RTD.
Applicable Cables
(1) Signal circuit wiring
● Cross-sectional area of the cable conductor: 0.5 to 0.75 mm
2
● Examples of applicable cables: Signal core PVC insulated flexible cable (VSF) stranded
wires (JIS C 3306); heat-resistant vinyl-insulated cable
(UL style 1007)
● Solderless lugs: All cable ends must be furnished with crimp-on solderless
lugs for 4 mm screw.
(2) Power supply wiring
● Cross-sectional area of the cable conductor: 1.25 to 2.00 mm
2
● Examples of applicable cables: 600 V PVC insulated cable (1 V) stranded wires (JIS C
3307); PVC insulated cable for electrical apparatus (KIV)
stranded wires (JIS C 3316)
● Solderless lugs: All cable ends must be furnished with crimp-on solderless
lugs for 4 mm screw. The cable used should fulfill the
amperage requirement of each instrument, and should
also be small in voltage drop.
CENTER
A
B
B
RTD
input
0%
100%
Potentiometer
input