Yokogawa ADMAG AXR - Manual (Page 31)

<4. WIRING>
4-7
IM 01E30D01-01EN
F0415.ai
SUPPLY
DO
Power supply
cable
Figure 4.6.2 Electric Cable Wiring (TIIS Explosion
Proof Type)
IMPORTANT
• Connecting with the commercial AXR
power supply will damage the flowmeter.
Be sure to use the DC power supply in the
predetermined range.
• Do not connect power supply with reversed
polarities.
SUPPLY + terminal: connect +
SUPPLY - terminal: connect -
NOTE
Supply voltage means the voltage necessary
to provide between the power terminals of the
magnetic flowmeter.
Refer to Table 4.6.2 to 4.6.4 for wiring examples in
case of general - purpose use/explosion proof type
except TIIS.
Refer to Table 4.6.5 to 4.6.7 for wiring examples in
case of TIIS explosion proof type.
The ADMAG AXR can be connected with almost
all distributors, signal conditioner cards, and I/O
modules except certain devices.
Referring to the Table 4.6.1 for Yokogawa’s devices,
choose an appropriate connecting device and the
corresponding length of cable.
For devices other than Table 4.6.1, decide on
the connection by referring to the supply voltage
specifications and the description of wiring
examples as shown in Table 4.6.2 to 4.6.7.
Table 4.6.1 Connecting device and Applicable
maximum cable length (guideline)
Connecting device
Maximum length of cable
(rough guideline)
Name Model
Cable
with cross
section of
2 mm 2
Cable
with cross
section of
1.25 mm 2
Signal
Conditioner
Card
EA1
EA2
2 km 2 km
I/O Module
AAM11
AAM11B
2 km 2 km
Analog I/O
Module
(for FIO)
AAI143 2 km 2 km
AAI141
AAI841
AAI135
AAI835
Not applicable Not applicable
Analog I/O
Module (for
Prosafe-RS)
SAI143 1.4 km 0.8 km
Distributor
SDBT
SDBS
2 km 2 km
JUXTA
VJA1
2 km 2 km VJA4
VJA7
Communication Requirement:
BRAIN
Communication signal:
BRAIN communication signal
(superimposed on 4 to 20 mA DC signals)
Conditions of Communication Line:
Supply Voltage: 20.6 to 42 V DC
Load Resistance: 250 to 600 Ω
(including cable resistance)
Refer to Figure 4.6.3.
Communication Distance:
Up to a distance of 2km when a CEV cable is
used (Refer to Table 4.6.2)
Load Capacitance: 0.22 μF or less
Load Inductance: 3.3 mH or less
Distance from other Power line:
15 cm (6 in.) or more (Avoid parallel wiring)
Input Impedance of Communicating Device:
10 kΩ or more at 2.4 kHz