15
TDK-Lambda
GWS
500
Series
INSTRUCTION MANUAL
9. Fan Life Expectancy.
The fan life has limitation. Therefore, periodic maintenance by exchanging the life-expired fan is required for the power
supply. The following figure shows the life of fan.
Measurement point of fan exhausts temperature
10. Before concluding that the unit is at fault, Please make the following checks.
(1) Check if the rated input voltage is connected and within specification.
(2)
Check if the wiring of input and output is correct.
(3)
Check if the I/O terminal connection is properly tightened by required torque.
(4)
Check if the wire thickness is enough.
(5)
Check if the output voltage trimmer (V.ADJ) is properly adjusted. OVP might be triggered and output is
shutdown.
(6)
Is the chassis of power supply abnormally hot? The output is shutdown by OTP operation. Please disconnect or
turn off the AC input and let the unit cool down sufficiently before turning ON the AC input again.
(7)
Check if the output current and output wattage does not exceed the specification.
(8)
Audible noise may be heard when input voltage waveform is not sinusoidal.
(9)
Audible noise may be heard during dynamic load operation.
(10)
Ensure that a large capacitor is not connected across the output terminals. Please use within maximum
capacitance shown below.
Maximum external capacitance
MODEL 12V 24V 36V 48V
GWS500 10,000uF
5,000uF
1,000uF
Air Flow
P.S.
50mm
Temperature
measurement point
FRONT SIDE
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
Downloaded from
Arrow.com.
