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• If there is a danger of a serious accident resulting from a failure or a defect in this unit, provide the unit
with an appropriate external protective circuit to prevent an accident.
• The unit is normally supplied without a power switch and fuses.
Make wiring so that the fuse is placed between the main power supply switch and this equipment.
(main power supply: 2 pole breaker, fuse rating: 250V, 1A)
• When wiring the power supply terminal, use vinyl insulated 600 volt cable or equivalent.
• To avoid the damage and failure of equipment, supply the power voltage fitting to the rating.
• To avoid an electric shock and equipment failure, do not turn ON the power before all wiring is completed.
• Be sure to check that the distance is kept to avoid electric shock or firing before turning the power ON.
• Keep away from terminals while the circuit is energized in order to avoid an electric shock and a
malfunction.
• Never attempt to disassemble, fabricate, modify, or repair this unit because tampering with the unit
may result in a malfunction, electric shock, or a fire.
1.2 Maintenance precautions
• Be sure to turn off the power before this unit is installed or removed in order to avoid an electric shock,
malfunction, and fault.
• Regular maintenance is recommended a longer service life of this unit. Some parts of this unit have a
limited life span, or they will be deteriorated with the lapse of time.
• One-year warranty is guaranteed for this unit including accessories, provided that the unit is properly
used.
• If the voltage shown above exceeds 50Vdc(i.e. hazardous voltage), the basic insulation is required
between all terminals of this equipment and the ground, and supplementary insulation is required for
the alarm output.
Isolation class of this equipment is shown below. Be sure check that the isolation class of the equipment
satisfies your requirements before installation.
MAINS-INPUTS
BASIC insulation
MAINS-OUTPUTS
BASIC insulation
inputs - outputs(relay, alarm output)
BASIC insulation
inputs - outputs(SSR drive, DC 4-20mA)
Non-insulation
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