Yokogawa Value Series FX1000 - Manual (Page 264)

12-15
IM 04L21B01-01EN
Installation and W
iring
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App
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12.6 Wiring the Power Supply
Precautions to Be Taken While Wiring the Power Supply
Make sure to follow the warnings below when wiring the power supply. Failure to do so
may cause electric shock or damage to the instrument.
WARNING
• To prevent electric shock, ensure that the power supply is turned off.
• To prevent fire, use 600 V PVC insulated wires (AWG20 to AWG16; JISC3307)
or wires or cables with equivalent or better performance.
• Make sure to earth ground the protective earth terminal through a grounding
resistance of 100 Ω or less before you turn on the power.
• Use crimp-on lugs (designed for 4 mm screws) with insulation sleeves to
connect both the power cord and the protective ground.
Crimp-on lug (designed for 4 mm screws) with an insulation sleeve
• To prevent electric shock, be sure to close the transparent cover for the power
supply wires.
• Provide a power switch (double-pole type) on the power supply line to separate
the FX from the main power supply. Use labels to indicate that this switch is for
cutting off the power supply to the FX and to indicate ON and OFF.
Switch specifications Steady-state current rating: 1 A or more (other than
/P1); 3 A or more (/P1)
Inrush current rating: 60 A or more (other than /P1);
70 A or more (/P1)
Use a switch that complies with IEC60947-1 and
IEC60947-3.
• Connect a fuse (between 2 A and 15 A) to the power supply line.
• Do not add a switch or fuse to the ground line.
Use a power supply that meets the following conditions:
Item Condition (Other than /P1) Condition (/P1)
Rated supply voltage 100 to 240 VAC 24 VDC/AC
Allowable power supply
voltage range
90 to 132, 180 to 264 VAC 21.6 to 26.4 VDC/AC
Rated power supply
frequency
50/60 Hz 50/60 Hz (for AC)
Allowable power supply
frequency range
50/60 Hz ± 2% 50/60 Hz ± 2% (for AC)
Maximum power
consumption
35 VA (100 V), 45 VA (240 V) 18 VA (for DC), 30 VA (for AC)
Note
Do not use a supply voltage of 132 to 180 VAC, as this may have adverse effects on the
measurement accuracy.