INSTRUCTION MANUAL
ZWS300RC
Series
TDK-Lambda
<Page>
6-10.
Withstand Voltage
The product is designed to withstand 3.0kVAC between input and output, 2.0kVAC between input and terminal
and 500VAC between output and terminal each for 1 minute. When testing withstand voltage, set current limit
of withstand voltage test equipment at 10mA (Output - terminal : 20mA).
The applied voltage must be gradually increased from zero to testing value and then gradually decreased for shut
down. When timer is used, the product may be damaged by high impulse voltage at switch on and off timing.
Connect input and output as follows.
■ Input - Output (dotted line) : 3.0kVAC, 1min (10mA)
■ Output - terminal : 500VAC, 1min (20mA)
Input - terminal (solid line) : 2.0kVAC, 1min (10mA)
Note1 : In case of using external noise filter, capacitance between "Input and terminal" might be increased.
When testing withstand voltage between "Input and Output", there is a possibility exceeding withstand
voltage between "Output and terminal" (500VAC). Please check the voltage between
"Output and terminal". If the voltage exceeding withstand voltage, please add external capacitor to
"Output and terminal". It can decrease the voltage.
On the other hand, no need to check the voltage in case of "Output and terminal" is shorted.
The example of noise filter circuit that
External capacitor adding point or short point.
may increase capacitance value between
Even in the case of “+V and ”,
“Input and ”. there is a similar effect.
(Capacitance value in dashed line is added.)
6-11.
Remote ON/OFF Control (Option
“
/R
”
)
Remote ON/OFF control function is provided on option model
“
/R
”
. 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 external voltage
applied to +R and -R of remote ON/OFF terminal. This circuit is in the secondary side of the product.
Never connect to primary side. And this circuit is isolated from the secondary (output).
11/17
Withstand
Voltage
Tester
AC(L)
+V
AC(N)
-V
+R
-R
+
-
AC(L)
+V
AC(N)
-V
+R
-R
+
-
Withstand
Voltage
Tester
+V
-V
AC(L)
AC(N)
AC(L)
AC(N)
Noise filter
Power Supply
Withstand Voltage Tester
E
Power
Supply
1kΩ
+R
-R
SW
R
R : External resister
E : External voltage
External voltage : E
External resistor : R
4.5 - 12.5VDC
No required
12.5 - 24.5VDC
1.5kΩ
+R & -R terminal condition
Output Condition
SW ON (Higher than 4.5V)
ON
SW OFF (Lower than 0.8V)
OFF
