3-4
IM 01F06A00-01E
3. WIRING
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.
Unit : mm
F030501.EPS
(Black) (White) (Red)
(Red)
(White) (Black)
(Blue)
Specified
Length (L)
30m (max.)
DYC
Flowmeter
Converter
80
70
70
80
60
25
95
60
20
50
50
(Yellow)
(Yellow)
Figure 3.3
DYC Signal Cable
A
T
B
C
A
T
B
C
Outer shield
Inner shield
To Converter
To Flowmeter
F030502.EPS
T: Only for / MV
Figure 3.4
Construction of Remote Type Signal Cable
Detector (DY-N.../E1)
DYC
T
A
B
C
C
B
A
T
T
A
B
C
Flowmeter(DY-N)
Converter(DYA)
T: Only for /MV
F030503.EPS
Input Terminal from built-
in temperature sensor
Groundng terminal
Input Terminals from
vortex detector
Common Terminal
4 to 20 mA DC Output Power Supply
and Output Signal Terminals
Supply
⫹
–
Pulse Output Terminal
Pulse
⫹
T
A
B
C
Figure 3.5
Terminal of Detector and Converter
F030504.EPS
Vortex Flow Converter
Shield Cover
Signal Cable(DYC)
Power Cable
Figure 3.6
Shielded Cover
