Kikusui PLZ-30F, Operation Manuals

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PLZ-U General Description 1-3
1.3 Features
In addition to the advanced constant current, constant resistance, and constant volt-
age functions, the PLZ-U Series Electronic Load Unit offers wide variety of other
features.
■
Compact and light
Compact and light weighing only approximately 11 kg and 17 kg for 3 channels and
5 channels, respectively.
■
High-speed response
In constant current mode, a current rise and fall slew rate of 2.4 A/ μ s (PLZ150U) is
possible (converts to a rise and fall time of 10
μ
s). Simulations that closely resemble
a real load are possible by using the PLZ-U as a load for DC power transient
response tests and as a dummy load
■
High precision and high resolution
Three ranges are built into the PLZ-U achieving both wide dynamic range and high
resolution. The PLZ-U provides displays with up to 5 digits for voltage, current, and
power measurement functions as well as minimum preset resolutions of 10
μ
A
(PLZ70UA) and 20 μ A (PLZ150U).
■
Variable slew rate
The current slew rate can be varied continuously in constant current mode and con-
stant resistance mode. This feature allows the suppression of transient voltage drops
due to the wiring inductance that occurs when a load is switched and transient volt-
ages of constant voltage power supplies, etc.
■
Multi channels
Up to fi ve and three channels can be installed into the PLZ-50F and PLZ-30F, respec-
tively. Each channel is isolated and can be used independently or linked with each
other. Different units (PLZ150Us and PLZ70UAs) can be installed in the frame.
■
Low noise
High reliability and low noise have been achieved by the adoption of a heat sensing
variable speed fan and the enhanced cooling structure.
■
Large capacity
Parallel operation is possible on up to fi ve adjacent load units of the same type.
Five PLZ70UAs installed in PLZ-50F operating in parallel produce 375 W.
Five PLZ150Us installed in PLZ-50F operating in parallel produce 750 W.
■
0 V type
The PLZ70UA is a 0 V input operating voltage unit. This feature is a must for single
cell tests of fuel cells. Moreover, the operating voltage of semiconductor devices is
decreasing more and more due to the reduction of the power consumption and min-
iaturization of the semiconductor process. The PLZ70UA can be used to evaluate
the power supplies for these types of applications.