12/22
TDK-Lambda
CUS600M
INSTRUCTION MANUAL
Note :
In case of using external noise filter, capacitance between “Input and ” might be increased. When testing withstand voltage
between “Input and Output”, there is a possibility exceeding withstand voltage between “Output and
” (1.5kVAC). Please check
the voltage between “Output and
”. If the voltage exceeding withstand voltage, please add external capacitor to “Output and
”.
It can decrease the voltage.
On the other hand, no need to check the voltage in case of “Output and
” is shorted.
6-12. Standby supply
A fixed 5V Standby supply is provided through STBY+ and STBY- of CN61 or CN62. And output derating should be considered according
to the input voltage and mounting method.
6-13. Power Good Signal
Power Good is provided warning signal before loss of output voltage since AC fail through PG and STBY-.
Power Good signal shows “High” level (4.5V~5V) to indicate power supply operating normal, and can source maximum 2mA current.
When power supply stops operating, the signal will turn to “Low” level (0V~0.5V), and the maximum sink current is 1mA.
6-14. Remote ON/OFF Control
Using this function allows the user to turn the output on and off without having to turn the AC input off and on.
It is controlled by the voltage applied to R+ and R-. This circuit is in the Secondary side of the power supply unit.
Do not connect in the primary side of power supply unit.
And this circuit is isolated from the output of power supply unit.
Remote ON/OFF control cuicuit can be configured by supply from STBY+ terminal .
Example of connecting remote ON/OFF control application:
Sample A
Sample B
Sample A Sample B
Power
Supply
2.2k
Ω
R+
R-
SW
R
E
+R & -R terminal condition
SW OFF (Lower than 0.5V)
SW ON (Higher than 3.0V)
Ouput condition
ON
OFF
External voltage : E
3 ~ 7VDC
7 ~ 30VDC
External resistance : R
No required
10k
Ω
The control mode is shown below.
Power
Supply
STBY+
SW
STBY-
R+
R-
