12
Power Supply
Technical Information
Power Supply Troubleshooting
Read the operation manual provided with the Product, and check the following points, as applicable.
When
Check point
Details
Purchasing
External
appearance
After purchase, make sure that the product and packaging have no dents or marks.
Any internal damage may result in overvoltage depending on the location of the damage.
(Stop using the product if dents, marks, or deformation is evident.)
Model and
specifications
Make sure that the input voltage, output voltage, and output current of the Power Supply purchased meet the requirements.
(The I/O specifications are provided on the model label.)
Installing
Installation
conditions
Be sure to use mounting screws of the specified length. Using longer screws may cause damage to the PCB, or short-circuit
the internal circuits.
Installation location
Be sure to provide sufficient space around the Product when installing it to allow for heat dissipation.
Operating
environment
Make sure that the ambient temperature, and vibration in the installation environment satisfy the specified levels for each
product being used. (Be sure to install the Product as far as possible away from contactors, which will subject the Product to
vibration and shock if it is located in their vicinity.)
Install the Product in a location in which liquid or foreign particles will not enter the Product.
Wiring
Input voltage
selector terminals
Before turning ON the power, make sure that the voltage specifications are the same as the voltage of the device.
The Product is shipped with the input voltage selector terminals open (i.e., set to 200 VAC).
Input terminals
Wire the Power Supply inputs correctly. Connecting the AC input wires to the output terminals or voltage selector terminals
will cause damage to the internal circuits.
Terminal wiring
Do not subject the terminals to excessive stress by using excessive force when tightening the terminal screws. After tighten-
ing the screws to the specified torque, make sure that none of the screws is loose.
Make sure that the end of the screwdriver used to tighten the screws does not mark or damage the PCB or internal parts.
Connect the ground terminal to prevent electric shock.
Remote sensing
terminals
Check whether remote sensing is securely connected. If remote sensing is not to be used, short-circuit using the short bar.
(At shipment, these terminals are short-circuited with the short bar.)
Remote control
terminals
Check whether the remote control terminals are securely connected. If remote control is not to be used, short-circuit using
the short bar. (At shipment, these terminals are short-circuited with the short bar.)
Series, parallel, and
± output operation
Check whether series, parallel, or ±operation is supported.
Refer to the wiring information in this guide.
Adjusting the
output voltage
Output Voltage
Adjuster
Do not apply unnecessarily strong force on the Output Voltage Adjuster (V.ADJ). Doing so may damage the V.ADJ.
Make sure that the end of the screwdriver used to adjust the setting does not mark or damage the PCB.
