Connecting To External Products Of Integral Flowmeter And Remote Transmitter - YOKOGAWA AXG1A Installation Manual

4.4 Connecting to External
Products of Integral
Flowmeter and Remote
Transmitter
4.4.1 Wiring Precautions for Power Supply
Cables
When connecting to the power supply, observe the points
below. Failure to comply with these warnings may result
in an electric shock or damage to the product.
WARNING
• Ensure that the power supply is off in order to prevent
electric shocks.
• When opening the cover, wait for more than 20
minutes after turning off the power.
• Ensure the protective grounding terminal is grounded
before turning on the power.
• Terminate all the cable finish with round or rod
shaped crimp terminal (depending on the shape of
the terminal block) with insulation cover, and connect
them reliably.
• Install an external switch or circuit breaker as a
means to turn the power off (capacitance: 15A,
conforming to IEC60947-1 and IEC60947-3).
Locate this switch either near the product or in other
places facilitating easy operation. Affix a "Power Off
Equipment" label to this external switch or circuit
breaker.
WARNING
For explosion protection type products, please be sure
to read the user's manual of the applicable explosion
protection type as listed in Table 1.1.
<4. Wiring>
Wiring Procedure
1. Check the product's power is off, then remove the
terminal cover (transparent).
2. Wire the power supply cable and the functional
grounding cable to the power supply terminals.
3. Install the terminal cover.
Integral type or AXW4A remote transmitter
M4 Screw Type
Integral type or AXW4A remote transmitter
Clamp Type
Functional
Power supply cable
grounding
cable
AXG1A remote transmitter
Figure 4.4.1 Power Cable Wiring
4.4.2 DC Power Connection
When using DC power as the power supply for the
transmitter, pay attention to the following points.
(1) Connecting Power Supply
IMPORTANT
Do not connect power supply with reversed polarities.
L/+ terminal: connect to + (power supply)
N/– terminal: connect to - (power supply)
35
Functional grounding cable
Power supply
cable
Functional grounding cable
Power supply
cable
F0423.ai
IM 01E24A01-01EN
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