EZA2500 Series
TDK-Lambda
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11-9. Withstand Voltage Test
This converter is designed to withstand 3kVAC between primary (DC320V) and secondary (DC48V) & signals,
2kVAC between primary (DC320V) and chassis (
),
707VDC between secondary (DC48V) & signals and chassis (
) each for 1minute.
When testing withstand voltage set current trip limit of withstand voltage test equipment to 20mA.
The applied voltage must be gradually increased from zero to testing value and then gradually decreased to zero.
When timer is used the unit may be damaged by high rate of change of voltage at turn on/off. Ramp the voltage even
if using a timer.
CV and
r
V as follows.
A
primary (DC320V) and chassis(
)
H
2000VAC, 1min(50mA)
A
Secondary (DC48V) & Signals - Chassis (
) : 707VDC 1min.
18/22
A
Primary (DC320V) - Secondary (DC48V) & Signals 3kVAC, 1min. (20mA)
*Must connect short all pins of RS-485 and CN.
Notes: This product has ceramic capacitor between secondary circuit and chassis. Some withstand voltage tester
can generate higher voltage then the capacitor can withstand
r
so be careful to set the test voltages as above and
no higher
r
otherwise capacitors may be damaged.
