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2-2 WIRING
Check terminal Nos. on the rear panel described on Page 7 and correctly wire the cables.
2-2-1 Terminal Board
• Remove the cover from the terminal board before conducting required wirings.
• It is recommended to attach press-fit terminals to the connecting wires.
Use the press fit terminals having the size equivalent to 1.25-3.
• After completing wirings to the terminal board, do not forget to put a cover on the terminal board.
2-2-2 Connecting Power Supply
• Do not forget to check that power voltage is from 100 to 240 VAC (±10%) and use the cable with pressure
proof capacity having more than power supply voltage.
• For DC power supply (Optional), check the DC voltage is from 10 to 30 VDC (8 W).
• Please use the power source reaching maximum voltage within 0.1 second after power on. With the power
source whose voltage rises up slowly, it may cause malfunction.
• If the power source is out of specifications such as over current or lower power capacity, the function of the
product fully stops for avoiding malfunction. The trouble is solved by turning off and leaving the product for
10 seconds. Before turning on again, please make sure if the power source is compatible.
Note: Although the WGI-400A may be operated with power supply voltage exceeding the
allowable power voltage range, the operation may not be guaranteed Always use the
WGI-400A within the specified power voltage range.
Note: Control input/output and analog output terminals has a tightening torque of 0.5 N･m or
less
2-2-3 Connecting Transducers
• Connect transducers to terminals A to E as described in the following.
(Cable colors are KYOWA's standard color codes.)
A: Bridge excitation + side (Red)
B: Bridge output – side
C: Bridge excitation - side (Black)
D: Bridge output + side
E: Shield
+: TEDS (+)
-:
TEDS (-)
Note: Do not connect the power cable to the TEDS terminal.
• Use as short as possible 4-conductor shield cable (TEDS: 6-conductor cable) for transducer wiring.
In addition, locate the transducer far apart from power lines and wirings interfered with noise.
• Factory default of bridge excitation voltage is set to 2 V. It can be changed to 4 V. Set the voltage compatible
to transducer specifications (recommended excitation voltage) before using the transducer. See function
selecting mode 'F-13' and change the setting.
Note2: If the shield is connected to a case of a transducer, it could cause an electric shock.
Before connecting transducers, please check potential difference between transducer's
installation location and ground location. Please connect 'terminal E' and 'ground' if there is
potential difference.
(White)
(Green)
9
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