INSTRUCTION MANUAL
ZWS300RC
Series
TDK-Lambda
<Page>
6-8. Parallel Operation
(A) Operation to increase the output current is not possible.
(B) Operation as a Backup System
Connect our reverse prevention module "RP-60-20" or ORing-diode to the output side of the product.
(1) Adjust each product output to same voltage. (The difference of each product output voltage should
be within ±5%.)
(2) Adjust the output voltage higher by the value of the voltage drop (90mV typ.) of RP-60-20 or the forward
voltage drop (Vf) of ORing-diode.
(3) Output voltage and output power should be used within specifications.
(4) When using RP-60-20, output load current should be used within specifications. When using
ORing-diode, current rating must be more than output load current.
(A)
(B)
6-9. Isolation Test
Isolation resistance between Output - terminal is more than 100MΩ at 500VDC. For safety operation, voltage
setting of DC isolation tester must be done before the test. Ensure that the product is fully discharged after the test.
■ Output - terminal : 500VDC More than 100M
W
10/17
AC(L)
+V
AC(N)
-V
+R
-R
Isolation
Tester
+
-
For more information about RP-60-20,
please refer to
“
RP-60-20 Instruction Manual
”
.
RP-60-20 can be replaced by ORing-diode. In such
case, please take care of ORing-diode temperature.
Power
Supply
Power
Supply
load
Power
Supply
Power
Supply
load
RP
or
ORing-diode
RP or
ORing-diode
+V
-V
+V
-V
+V
-V
+V
-V
+
-
+
-
