Parallel Operation; Withstand Voltage - TDK-Lambda ZWS-B Series Instruction Manual

4-8. Parallel Operation

For parallel operation, method (B) is possible.
(A) To increase the output current is not possible.
Power Supply
Output
Terminal
Output
Terminal
4-9. Isolation Test
Isolation resistance between Output and
must be done before the test. Ensure that the unit is fully discharged after the test.

4-10. Withstand Voltage

This series is designed to withstand 3.0kVAC between input and output, 2.0kVAC between input and
each for 1 minute. When testing withstand voltage, set current limit of the withstand voltage test equipment to 10mA (output -
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)
Withstand
Voltage Tester
Withstand
Voltage Tester
(B) To use as Back-up Power Supply
Power Supply
Load
Output
Terminal
Output
Terminal
is more than 100MΩat 500VDC. For safety operation, voltage setting of DC isolation tester
Output - : 500VDC More than 100MΩ
AC(L)
AC(N)
Isolation
Tester
Output -
AC(L)
+
AC(N)
‐
- 6 -
ZWS10・15B・30B Series
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.
+
‐
: 500VAC 1min(20mA)
AC(L)
AC(N)
Withstand
Voltage Tester
TDK-Lambda
Instruction Manual
Load
and 500VAC between output and
: 20mA).
+
‐