CME-LEA Datasheet, PDF (4/6 Pages) List of Unclassifed Manufacturers – Basic Characteristics Data

AC-DC Power Supplies Open Frame/Enclosed type _{Instruction Manual}
2.6 Isolation
nFor a receiving inspection, such as Hi-Pot test, gradually increase
(decrease) the voltage for the start (shut down). Avoid using Hi-
Pot tester with the timer because it may generate voltage a few
times higher than the applied voltage, at ON/OFF of a timer.
If the unit is tested on the isolation between input & output and
output & FG, remote ON/OFF must be shorted to output.
2.7 Remote ON/OFF (Optional ”-R”)
nOption ”-R” is available for remote ON/OFF.
Between RC(+) and RC(-)
SW ON
(4.5 - 12.5V)
SW OFF
(0 - 0.5V)
Output
ON
OFF
SW
R
RC(+) 1
Ri
Vcc
External Power
Source
l=20mA max
RC(-) ²
Connector for remote ON/OFF (Optional)
nWhen external power source is in the range of 4.5 - 12.5V, current
limit resistance R is not required. However, when external power
source exceeds 12.5V, current limit resistance R must be con-
nected.
To calculate the current limit resistance use following equation:
Vcc - (1.1+Ri 0.005)
R[ ]=
0.005
Where;
Vcc = External Power Source
Ri = The internal resistance (780 )
nA wrong connection may damage the internal components of the
unit.
nRemote ON/OFF circuit (RC(+), RC(-)) is isolated from input, out-
put and FG.
3 Series Operation and
Parallel Operation
nSeries operation is available by connecting the outputs of two or
more power supplies with the same output voltage, as shown be-
low. Output current in series connection should be lower than the
lowest rated current in each unit.
(a)
Power ⁺
LEA
Supply _-
Power ⁺
Supply _-
(b)
Power ⁺
Supply _-
Power ⁺
Supply _-
nParallel operation is not possible.
nRedundancy operation is available by wiring as shown below.
Power ^{+ l1}
l3
Supply _-
Power ^{+ l2}
Supply _-
nEven a slight difference in output voltage can affect the balance
between the values of I1 and I2.
Please make sure that the value of I3 does not exceed the rated
current of a power supply.
I3 the rated current value
LEA-13