Wiring Cables And Wires; Connection Of The Remote Type Signal Cable - YOKOGAWA DY025 User Manual

3.4 Wiring Cables and Wires

The following should be taken into consideration when
selecting cables for use between the converter and distributor.
(1) Use 600V PVC insulated wire or equivalent standard
wire or cable.
(2) Use shielded wire in areas susceptible to electrical noise
(both analog and pulse output versions).
(3) In areas with high or low ambient temperatures, use
wires or cables suitable for such temperatures.
(4) In atmospheres where oils or solvents, corrosive gases or
liquids may be present, use suitable wires or cables.
(5) Use cable which withstand temperature up to 60°C and
more, when ambient temperature is more than 60°C.
IMPORTANT
For the remote type, use DYC signal cable to connect
the converter and remote type flowmeter(DY-N).
3.5 Connection of the Remote
Type Signal Cable
The remote type signal cable is shown in Figure 3.3 and 3.4,
and the terminal is shown in Figure 3.5.
The maximum cable length is 30 m (97.5 feet).
Remove terminal box cover and wiring connection dust-cap
before wiring.
For remote type the converter has two electrical connections
(cable inlets). Use the left connection as viewed from the
terminal box for the DYC signal cable and the right connec-
tion for the transmission cable.
If a signal cable kit is supplied by YOKOGAWA, both ends
of the cable must be finished in accordance with the
following instructions as shown in 3.6.1 and 3.6.2.
CAUTION
After completing the signal cable connections, install
the shielded cover to signal cable terminal as shown
in Figure 3.6.
(Black) (White) (Red) (Yellow)
80
60
50
20
DYC
Figure 3.3 DYC Signal Cable
To Flowmeter
T
A
B
C
T: Only for / MV
Figure 3.4 Construction of Remote Type Signal Cable
T
A
B
C
Flowmeter(DY-N)
DYC
T
Input Terminal from built-
T
in temperature sensor
Input Terminals from
A
vortex detector
B
C Common Terminal
Figure 3.5 Terminal of Detector and Converter
Signal Cable(DYC)
Shield Cover
Figure 3.6 Shielded Cover
3-4
(Yellow) (Red) (White) (Black)
70 70
60
50
25
Specified
Length (L)
30m (max.)
Outer shield
To Converter
Inner shield
T
A
B
C
Converter(DYA)
C
T: Only for /MV
B
A
Detector (DY-N.../E1)
Supply
4 to 20 mA DC Output Power Supply
and Output Signal Terminals
–
Pulse
Pulse Output Terminal
Groundng terminal
Vortex Flow Converter
Power Cable
IM 01F06A00-01E
3. WIRING
Unit : mm
80
95
(Blue)
F030501.EPS
T
A
B
C
F030502.EPS
F030503.EPS
F030504.EPS