INSTRUCTION MANUAL
EVS300W/600W
Series
TDKLambda
<Page>
410.
Parallel Operation
For parallel operation, either method (A) or (B) is possible.
(A) Operation to increase the Output Current
(1)Adjust each product output to same voltage. (The difference of each product output voltage should
be within ±5%.) If the difference of each product output voltage is too big, the output
current becomes uneven and the products may be damaged.
(2)Connection wires between the product and load should be same type and same length.
(3)Parallel connection is acceptable up to 5 units maximum.
(4)The purpose of parallel operation is to increase the static maximum output current.
There is a possibility that output voltage dips at dynamic load change.
(5)There might be a step in the output rise waveform during parallel operation.
(B) Operation as a Backup System
(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 EVSRP or the forward
voltage drop (Vf) of ORingdiode.
(3)Output voltage and output power should be used within specifications.
(4)When using EVSRP, output load current should be used within specifications. When using
ORingdiode, current rating must be more than output load current.
(A)
(B)
411.
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
11/22
AC(L)
＋
AC(N)
－
+ R
R
Isolation
Tester
－
＋
－
＋
＋
－
Output
Terminal
Output
Terminal
load
－
＋
－
＋
＋
－
Output
Terminal
Output
Terminal
load
EVSRP
EVSRP
For more information about EVSRP,
please refer to
“
45. Battery Charger Applications
”
or
“
EVSRP Instruction Manual
”
.
EVSRP can be replaced by ORingdiode. In such
case, please take care of ORingdiode temperature.
