3
．
Mounting Method
Output derating
Notes of mounting
HFS150A-12
(a)
、
(d)
・
This power supply is the natural convection
(b)
cooling.
・
Please secure ventilation by leaving space
between power supplies when you use two
or more, so as not to exceed the temperature
(c)
span that the ambient temperature shows in
the derating table[3-2].
1 0
2 0
3 0
4 0
5 0
HFS150A-24
、
30
、
48
(a)
、
(d)
(b)
(c)
Ambient Temperature (degree C)
3-2
3-3
Load Factor(%)
d Factor(%)
0
20
40
60
80
100
40
60
80
100
0
-10
1 0
2 0
3 0
4 0
5 0
6 0
4
．
Connections
・
Please be away among Output load wire, remote control wire, remote sensing wire and input wire
in order to minimize noise interference. If you twist the each wire, it will improve.
・
You can add lower value of electrolytic capacitor to the load edge for noise removal.
・
Do not wire for the output load wire lengthening it more than the necessity.
・
Please connect the terminal with the frame ground terminal of the equipment and the device
equipped with the power supply shortest in the thick wires for safety and the noise removal.
There is fear of the electric shock.
・
Recommended tightening torque of I/O terminal screw (M4) : 1.4N
・
m
・
Wrong wiring or wrong connections are become the cause of damage when you use the remote
sensing function. Connect it very carefully with the input intercepted.
5
．
Trouble shooting before contact us
・
Please make sure your input voltage.
・
Please make sure your input/output connections.
・
Please make sure your wire specification.
・
Check the output adjustment potentiometer.
Sometimes OVP function turns off the output power when you turn the potentiometer too much.
・
Check the capacitance at the load side is not too much.
・
Check the remote control on/off.
・
Check the switch is "1" when the remote sensing is not used.
Ambient Temperature (degree C)
Loa
d
0
20
40
0
-10
