Matsusada DOEF Series, Instruction Manual

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3 Handling
12
DOEF series
Matsusada Precision
The high-speed pulse current limiter, which protects the
amplifier elements in the unit, is possible to limit pulse
current generated in square wave and capacitive load, but
the limit value is approx. two times higher than the rated
current. When such a condition is repeated, that means
two times the rated current always flows, it can result in
malfunction or deterioration of the unit.
If the unit is used in such a manner, it is recommended to
lower the frequency or insert a resistor in series with the
load.
3-4-3 Sink Power Protection
This protective function measures the power flowed into the unit to cut it off.
It can prevent discharge such as a battery. Although it can prevent the power consumed in the unit, it
does not prevent the power consumed in the load.
The protection works by comparing the effective power value calculated by multiplying the measured
effective voltage value by the effective current value with the set suction power protection value.
[Sink power protection]
Setting range: -1 to -300W for 600W model
-1 to -600W for 1200W model
Setting unit: 0.1V
3-5 Output Range
Although this unit is operatable in the four-quadrant output range, derate the output according to the
following graph if it is operated in DC mode or low frequency.
Avoid continuous use at a high frequency that would reduce the output amplitude of this unit.
It can increase the internal loss of the unit and lead to failure.
For your safety, be sure to ground the GROUND terminal.
AC Operation range
(Frequency 50Hz and over/duty 50% and no DC bias)
DC Operation range
Vo max: Rated output voltage
Io max: Rated output current
Vo
1msec
Io
I
2I