Parallel Operation; Withstand Voltage - TDK-Lambda VS-E 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 -
isolation tester must be done before the test. Ensure that the unit is fully discharged after the test.
Output -

4-10. Withstand Voltage

This series is designed to withstand 2.0kVAC between input and output, 2.0kVAC between input and
between output and (Protective Earth) each for 1 minute. When testing withstand voltage, set current limit of the withstand voltage test
equipment to 10mA (output -
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) : 2.0kVAC 1min ( 10mA)
Input - (Protective Earth) (Solid line) :
Withstand
Voltage Tester
AC(L)
AC(N)
Withstand
Voltage Tester
Load
(Protective Earth) is more than 100MΩat 500VDC. For safety operation, voltage setting of DC
(Protective Earth) : 500VDC More than 100MΩ
AC(L)
+
AC(N)
‐
Isolation
Tester
(Protective Earth): 20mA). The applied voltage must be gradually increased from zero to the testing value
2.0kVAC 1min ( 10mA )
+
‐
(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.
Power Supply
Output
Terminal
Output
Terminal
Output - (Protective Earth) : 500VAC 1min (20mA)
AC(L)
AC(N)
Withstand
Voltage Tester
-4-
TDK-Lambda
VS-E Series
Instruction Manual
Load
(Protective Earth) and 500VAC
+
‐