Parallel Operation; Withstand Voltage - TDK-Lambda CUS100MB Series Instruction Manual

4-8. Parallel Operation

For parallel operation, method (B) is possible.
(A) To increase the Output Current is not possible.
+V
Power
Supply
-V
+V
Power
Supply
-V
4-9. Isolation Test
Isolation resistance between Output and
setting of DC isolation tester must be done before the test. Ensure that the unit is fully discharged after the test.
Output - (Protective Earth) : 500VDC More than 100MΩ
.

4-10. Withstand Voltage

These products are designed to withstand 4.0kVAC between input and output, 2.0kVAC between input and
between output and each for 1 minute. When testing withstand voltage, set current limit of the withstand voltage test
equipment to 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) : 4.0kVAC 1min(20mA)
Input - (Protective Earth)(Solid line) : 2.0kVAC 1min(20mA)
Withstand
Voltage Tester
Withstand
Voltage Tester
+
Load
-
(Protective Earth) is more than 100MΩat 500VDC. For safety operation, voltage
AC(L)
+
AC(N)
‐
Isolation
Tester
AC(L)
+
AC(N)
‐
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(B) To use as Backup 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.
+V
Power
Supply
-V
+V
Power
Supply
-V
Output - (Protective Earth) : 1.5kVAC 1min(20mA)
AC(L)
AC(N)
Withstand
Voltage Tester
TDK-Lambda
CUS100MB
INSTRUCTION MANUAL
+
Load
-
, and 1.5kVAC
+
‐