¿
-R (LFA100F, LFA150F, LFA240F, LFA300F)
-
You can control output ON/OFF remotely in Option -R units. To
do so, connect an external DC power supply and apply a volt-
age to a remote ON/OFF connector, which is available as op-
tion.
Model Name
Built-in
Resistor
Ri [
W
]
Voltage between RC (+)
and RC (-) [V]
Input
Current
[mA]
Output ON Output OFF
LFA100F, LFA150F,
LFA240F, LFA300F
780
4.5 - 12.5
0 - 0.5
20max
-
Dedicated harnesses are available for your purchase. Please
see Optional Parts for details.
*
1 If the output of an external power supply is within the range
of 4.5 - 12.5V, you do not need a current limiting resistor R. If
the output exceeds 12.5V, however, please connect the cur-
rent limiting resistor R.
To calculate a current limiting resistance value, please use the fol-
lowing equation.
R[
W
]=
*
Please wire carefully. If you wire wrongly, the internal components
of a unit may be damaged.
¡
Remote ON/OFF circuits (RC+ and RC-) are isolated from input,
output and FG.
¿
-R2 (LFA100F, LFA150F, LFA240F, LFA300F)
-
The usege is the same as option -R, please refer to Option -R.
-
Reducing standby power is possible by OFF signal of the re-
mote control.
-
Start up time by ON signal in remote control is 350ms(typ).
-
The latch condition in overvoltage protection is removed by tog-
gling ON/OFF signal of remote control.
-
Standby power
LFA100F,LFA150F,LFA240F
0.2Wtyp (AC100V), 0.7Wtyp (AC200V)
LFA300F
0.25Wtyp (AC100V), 1.1Wtyp (AC200V)
¿
-T (LFA240F, LFA300F)
-
Option -T units have vertically positioned screws on a terminal
block.
-
Please contact us for details about appearance.
¡
The screw can be held to terminal block by inserting and lifting the
screwdriver from the side of terminal block.
¿
-T1 (LFA300F)
-
Option -T units have horizontally positioned screws on a termi-
nal block.
-
Please contact us for details about appearance.
5.2 Others
¡
This power supply is the rugged PCB type. Do not drop conduc-
tive objects in the power supply.
¡
At light load, there remains high voltage inside the power supply
for a few minutes after power OFF.
So, at maintenance, take care about electric shock.
¡
This power supply is manufactured by SMD technology. The
stress to PCB like twisting or bending causes the defect of the
unit, so handle the unit with care.
-
Tighten all the screws in the screw hole.
-
Install it so that PCB may become parallel to the clamp face.
-
Avoid the impact such as drops.
FG
AC (N)
AC (L)
-V
+V
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-32
LFA
Fig.5.2 Example of using a remote ON/OFF circuit
Ri
RC (-)
RC (+)
2
1
*
1
R
SW
External Power
Source
Remote ON/OFF connector (Optional)
Input Current
Inside of a Power
Supply
Vcc-(1.1+Ri
X
0.005)
0.005
Fig.5.3 Example of option -T
Fig.5.4 lifting method
Fig.5.5 Example of option -T1
+ screwdriver
terminal block
screw
f
5.5MAX
FG
AC (N)
AC (L)
-V
+V
me̲lfa1.indd LFA-32
me lfa1 indd LFA-32
2015/06/15 15:22:55
2015/06/15 15:22:55
