YOKOGAWA AXG1A Installation Manual page 37

IMPORTANT
For the 24 V power supply version (power supply code
-2), power supply with 100 to 240 V AC and 100 to 120
V DC cannot be connected.
The wrong connection results in a damage to the
transmitter.
(2) Required Power Supply Voltages
IMPORTANT
• For the 24 V power supply version (power supply
code -2), the specification of 24 V (–15% to +20%)
is the supply voltage between the terminals on
the transmitter. Because of voltage drop by cable
resisitance, the supply voltage must be applied
within the range of Figure 4.4.2.
• For AXFA11, read the applicable user's manual as
listed in Table 1.1.
700 (2290)
603 (1970)
600 (1960)
500 (1640)
400 (1310)
338 (1100)
300 (980)
200 (650)
100 (320)
0
20 22
Usable voltage range (V)
Cable cross section area: 1.25 mm
Cable cross section area: 2 mm
Figure 4.4.2 Supply Voltage and Power Supply Cable
Length (Integral Flowmeter and AXW4A
Remote Transmitter)
400 (1310)
391 (1280)
300 (980)
244 (800)
219 (710)
200 (650)
137 (440)
100 (320)
0
20.4
20 22
Usable voltage range (V)
Cable cross section area: 1.25 mm
Cable cross section area: 1.25 mm
Cable cross section area: 2 mm 2
Cable cross section area: 2 mm 2
Figure 4.4.3 Supply Voltage and Power Supply Cable
Length (AXG1A Remote Transmitter)
28.8
24 26 28
2
2
F0424.ai
28.8
24 26 28
2 (1100 mm or larger, power consumption 32 W)
2 (1000 mm or smaller, power consumption 20 W)
(1100 mm or larger, power consumption 32 W)
(1000 mm or smaller, power consumption 20 W)
F0425.ai
(3) Setting Power Supply Frequency
IMPORTANT
Set the local commercial power frequency in order to
eliminate the effect of induction noise from the power
supply.
For detailed parameter setting, read the user's manual
of the applicable communication type (for AXW/
AXW4A/AXG1A) or the hardware/software edition (for
AXFA11) as listed in Table 1.1.
Display Menu Path (AXW/AXW4A/AXG1A):
Device setup ► Detailed setup ► AUX calculation ► Power sync on/off
Device setup ► Detailed setup ► AUX calculation ► Set power freq
4.4.3 Grounding
WARNING
For the wiring of protective grounding, terminate the
cable finish with round shaped crimp terminal with
insulation cover (for M4 screw), and connect it to the
protective grounding terminal reliably.
CAUTION
• The grounding should satisfy grounding resistance
requirement, 100 Ω or less (Class D grounding).
30 • For explosion protection type, the grounding must
satisfy the domestic electrical requirements as
regulated in each country.
IMPORTANT
A lightning protector is built-in for integral flowmeter or
AXW4A/AXG1A remote transmitter. When the lightning
protection is needed, the ground should satisfy Class C
requirements (grounding resistance, 10 Ω or less).
For AXFA11, read the applicable user's manual as listed
in Table 1.1.
• The protective grounding terminals
the inside and outside of the terminal area.
Either terminal can be used.
• Use 600 V vinyl insulation wires as the grounding wires.
30
<4. Wiring>
are located on
IM 01E24A01-01EN
36