To Connect Power Supply; 3-7-1.Wga-680A-00~04 (Ac Models) - KYOWA WGA-680A Series Instruction Manual

3-7. TO CONNECT POWER SUPPLY

3-7-1.WGA-680A-00~04 (AC models)

Do not forget to check that power voltage is from 100 to
240 VAC, 50/60 Hz (20 VA). Be sure to use the cable with
rated voltage having more than power supply voltage.
Please do not press the terminal block too strongly.
To prevent electric shock hazards, be sure to use the terminal block cover.
To prevent short circuit of the power supply, use crimp terminal with
insulation coating (equivalent to JIS C 2805 Crimp-type terminal lugs for
copper conductors 1.25-3).
NOTE
Before connecting the AC power supply, check the power supply voltage.
The power supply voltage ranges of WGA-680A-00~04 (AC models) are form 100 to 240 VAC (50/60
Hz). Be sure to keep the voltage range.Be sure to connect the GND terminal to the ground.
If the power supply voltage exceeds the above range or if a voltage between each terminal and the
grounding has a potential exceeding power supply voltage, do not connect the AC power cable to the AC
power outlet. Or, it may cause system failures and accidents.
How to confirm the power voltage is as follows.
(1) Measure the voltage between the AC power outlet terminals with the
tester, and confirm that the voltage is between 100 to 240 VAC.
(2) Measure the voltage between each end of the AC power outlet and the
ground with the tester. Confirm that the one is 0 V and the other one
is between 100 to 240 VAC.
(3) If the WGA-680A is used at site using apparatuses generating
interfering noise, for example, induction motor, electric welding
machine, etc., power supply condition may be deteriorated due to
excessive noise. Take appropriate countermeasures against the noise
by using an insulation transformer or commercially available noise-cut
transformer.
NOTE
Be sure to connect the GND terminal to the ground.
Or, it may cause an electric shock hazard, lower the performance, and
cause trouble.
WARNING
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IM-A-1048H