YOKOGAWA ZO21DW, Руководство пользователя, Страница: 22 / 39

<4. WIRING>
4-3
IM 11M03A02-00E
4.2 Wiring for Detector Output
This wiring enables the converter to receive cell output from the detector, output from a
thermocouple and a reference junction compensation signal. Install wires that allow for 10 Ω of
loop resistance or less. Keep detector wiring away from power wiring.
Basically, PVC sheathed PVC insulated cable (six cores) is used for this wiring.
CELL(+)
CELL(+)
CELL(-)
CELL(-)
TC(+)
TC(+)
TC(-) TC(-)
CJ(+)
CJ(+)
CJ(-)
CJ(-)
FG
Shielded cables
Detector
ZR402G
Converter
F4.2E.ai
Figure 4.2 Wiring for detector output
4.2.1 Connection to the Detector
To connect cables to the detector, proceed as follows:
(1) Mount conduits of the specified thread size or cable glands to the wiring connections of the
detector.
The detector may need to be removed in future for maintenance, so be sure to allow
sufficient cable length.
(2) The sizes of the terminal screw threads are M3.5. Each wire in the cable should be
terminated in the corresponding size of crimp terminal respectively.
(3) Except when “600V silicon rubber insulated glass braided wire” is used, connect the cable
shield to the FG terminal of the converter.