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TDK-Lambda
ZWS10
・
15B
・
30B Series
Instruction Manual
4-8. Parallel Operation
For parallel operation, method (B) is possible.
Load
Output
Terminal
Output
Terminal
Load
Output
Terminal
Output
Terminal
(B) To use as Back-up Power Supply
1. Adjust the output voltage of each power supply to be the same.
2. Set power supply output voltage higher by the forward voltage
drop (Vf) of diode.
Use within the specification for output voltage and output power.
(A) To increase the output current is not possible.
Power Supply
Power Supply
4-9. Isolation Test
Isolation resistance between Output and
is more than 100M
Ω
at 500VDC. For safety operation, voltage setting of DC isolation tester
must be done before the test. Ensure that the unit is fully discharged after the test.
Output -
: 500VDC More than 100M
Ω
AC(L)
AC(N)
Isolation
Tester
+
‐
4-10. Withstand Voltage
This series is designed to withstand 3.0kVAC between input and output, 2.0kVAC between input and
and 500VAC between output and
each for 1 minute. When testing withstand voltage, set current limit of the withstand voltage test equipment to 10mA (output -
: 20mA).
The applied voltage must be gradually increased from zero to the testing value and then gradually decreased for shut down. When timer is
used, the power supply may be damaged by high impulse voltage at timer switch on and off. Connect input and output as follows.
Input - Output (Dashed line) : 3.0kVAC 1min(10mA)
Input -
(Solid line) : 2.0kVAC 1min(10mA) Output -
: 500VAC 1min(20mA)
AC(L)
AC(N)
+
‐
AC(L)
AC(N)
+
‐
Withstand
Voltage Tester
Withstand
Voltage Tester
Withstand
Voltage Tester
