EX Series Operating Manual
If the real output voltage is higher than OVP level value, "
OVP TRIPPED
" message
appears on the display. And output voltage and current is dropped to near zero.
In other to output the voltage and current, at first remove the DUT from load wire and clear
the tripped OVP as like below method. The reason of tripped OVP occuring,
First, OVP setting level is lower than rear output voltage level. Therefore, increase the
OVP level
OVP level.
Second, Maybe the DUT is like a coil, motor and as like a source that make an in rush
curren.To avoid this, a UF-diode must be connected in series with the output as
shown below.
Third, In case of using the DUT as like source. If external voltage source such as a battery
is connected across the output, feedback voltage level is higher than OVP level and
it occurs tripped OVP
A diode must be connected in series with the output as
it occurs tripped OVP. A diode must be connected in series with the output as
shown below.
NOTE : If remote sensing,
connect + sense lead to
anode side of diode
anode side of diode
< Figure 3-2 >
Forth, If you can't control the tripped OVP, turn off the OVP function.
Enter the "Factory mode" and move to "
5.OVP USE
" and then disable this function.
< Figure. 3-2 >
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