Yokogawa Button Operated DX2000 - Manual (Page 66)

64
IM 04L42B01-02E
Power Supply Wiring
Panel Mount Type, or Desktop Type with /P1 Option (Models with /H5 and /P1 Options)
Precautions to Be Taken While Wiring the Power Supply
Make sure to follow the warnings below when wiring the power supply. To prevent electric
shock and damage to the DX, observe the following warnings.
WARNING
• To prevent electric shock when wiring, ensure the main power supply is turned OFF.
• To prevent the possibility of fire, use 600 V PVC insulated wire (AWG20 to 16) or
an equivalent wire for power wiring.
• Make sure to earth ground the protective earth terminal through a grounding
resistance less than 100 Ω before turning ON the power.
• Use crimp-on lug with insulation sleeves (for 4-mm screws) for power supply
wires and protective grounding wires.
• To prevent electric shock, make sure to close the transparent cover for the
power supply wires.
• Make sure to provide a power switch (double-pole type) on the power supply line in
order to separate the DX from the main power supply. Put an indication on this switch
as the breaker on the power supply line for the DX and indications of 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 complies with IEC60947-1, 3.
• Connect a fuse (between 2 A and 15 A) to the power line. Use a fuse approved
by CSA (for the use in North America) or VDE (for the use in Europe).
• Do not add a switch or fuse to the ground line.
Use a power supply that meets the following conditions:
Item Other than /P1 /P1
Rated supply voltage 100 to 240 VAC 24 VDC/AC
Allowable power supply voltage range 90 to 132, 180 to 264 VAC 21.6V 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 74 VA (100 V)/100 VA (240 V) 45 VA (for DC), 70VA (for AC)
Note
Do not use a supply voltage in the range 132 to 180 VAC, as this may have adverse effects on
the measurement accuracy.
Wiring Procedure
1. Turn OFF the power to the DX and open the transparent power terminal cover.
2. Wire the power cord and the protective ground cord to the power supply terminals.
Use ring-tongue crimp-on lugs (designed for 4 mm screws). The proper torque for
tightening the screw is 1.4 to 1.5 N•m (12.4 to 13.2 inch•lbs).
Power cord
Functional ground terminal
Protective grounding cord
N L
AC~
60VA MAX 50/60Hz
100-240V
Note
Do not wire the protective grounding
cord to the functional ground terminal.
24V DC
24V AC 50/60Hz 45VA MAX 28VA MAX
Other than /P1 /P1
(24 VDC/AC power supply)
3. Replace the power terminal cover, and fasten it with screws.
Installation and Wiring