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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 Test
These products are designed to withstand 4kVAC between input and output, 2kVAC between input and
and
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: 4kVAC,
1 minute (20mA)
(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
Power Supply
Load
Output
Terminal
Output
Terminal
is more than 100MΩat 500VDC. For safety operation, voltage setting of DC isolation tester
Input –
: 2kVAC,
1 minute (20mA)
- 5 -
drop (Vf) of diode.
Use within the specification for output voltage and output power.
Output –
1 minute (20mA)
TDK-Lambda
CUS200M
Instruction Manual
Load
and 1.5kVAC between output
: 1.5kVAC,
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