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・All specifications are subject to change without notice.

10. Before concluding that the unit is at fault

Before concluding that the unit is at fault, make the following

checks.

(1) Check if the rated input voltage is connected.

(2) Check if the wiring of input and output is correct.

(3) Check if the I/O terminal connection is properly tighten by

regulated torque.

(4) Check if the wire thickness is enough.

(5) Check if the output voltage control (V.adj) is properly ad-

justed. OVP might be trigged and output is shut down.

(6) If use function of the Remote ON/OFF control, check if the

Remote ON/OFF control is properly used.

(7) Check if the built-in FAN is not stopped. Is FAN stopped by

something irregular or etc?

If FAN stops, the ALM signal turn “High” level and OTP

might be activated.

(8) Power supply has ventilating holes on the front and back

panels. Check if there is any irregulars or dust, etc.

(9) Is the chassis of power supply hot abnormally? The output

is shut down by OTP operation. Please re-input after the

unit is cooled down sufficiently.

(10) Check if the output current and output power does not over

specification.

(11) Audible noise can be heard when input voltage waveform

is not sinusoidal.

(12) Audible noise can be heard during dynamic load operation.