PH
300S, 600S
PH
B-350
・All specifications are subject to change without notice.
Withstand
Voltage Tester
Baseplate
3kVAC 1 minute (20mA)
(48VDC Input Model: 1.5kVAC)
Figure20-2 Withstand Voltage Test for Input - Baseplate
CNT
＋V
＋S
−S
TRM
CS
IOG
−V
＋Vin
−Vin
Withstand
Voltage Tester
Baseplate
500VDC 1 minute
Figure20-3 Withstand Voltage Test for Output - Baseplate
Test must be curried out with direct current.
Isolation Resistance
Use DC isolation tester (MAX. 500V) to measure the isola-
tion resistance between output and baseplate. The isolation
resistance is more than 100MΩ at 500VDC. Note that some
isolation testers would make high voltage pulse occur when the
applied voltage is varied. Ensure the tester fully discharge after
the test.
CNT
＋V
＋S
−S
TRM
CS
IOG
−V
＋Vin
−Vin
Isolation
Tester
Baseplate
Over 100MΩat 500VDC
Figure21-1 Isolation Test
Vibration
Refer to “Installation Application Notes” in the instruction man-
ual.
Shock
Value is for conditions of our shipping.
Others
The performance of a system with Power Module is influenced
according to various conditions -- PCBs, chassis, mechanics,
heat dissipation. Please evaluate actual products, and confirm
its performance. (For details, please refer Power Module Appli-
cation Note.)
● Please refer to "Power Module Application Note" for
thermal design and mounting direction.
Confirm the following items before you think the module is dam-
aged or failed.
1）No Output
● Is the rated input voltage supplied?
● Is the remote sensing terminal connected correctly?
● Is the ON/OFF control terminal connected correctly?
● For adjusted output, is the variable resistance network
set up and connected correctly?
● Is there any trouble with the connected load?
2） High Output Voltage
● Is the remote sensing connected correctly?
● For adjusted output, is the variable resistance network
set up and connected correctly?
3）Low Output Voltage
● Is the rated input voltage supplied?
● Is the remote sensing terminal connected
correctly?
● Is it measured at sensing point?
● For adjusted output, is the variable resistance
network set up and connected correctly?
● Is there any trouble with the connected load?
4）Over Load Regulation or Over Input Regulation
● Is the rated input voltage supplied?
● Are the input and output terminals connected correctly?
● Is it measured at sensing point?
● Are input and output wires too thin?
5）High Output Ripple
● Is it same measuring method as the instruction manual?
● Is the input ripple voltage within the specification?
4. Before You Think The Module is damaged
Summary of Contents for PH Series
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