Atec Kikusui-PLZ1003W - Manual (Page 3)

Copyright © 2001 KIKUSUI ELECTRONICS CORP. All rights reserved. http://www.kikusui.co.jp/ Page3
Designed to Meet Today’s More Complex Loading Conditions
PLZ-3W/3WH series
ELECTRONIC LOAD (CC·CR·CV·CP)
● Constant power mode useful for battery discharge tests
Loads of constant power such as DC/DC converters are being used
increasingly for batteries, and evaluation tests on such loads also re-
quire the use of constant power. Since the PLZ-3W/3WH Series have
a C.P mode, you can conduct these types of load tests (such as con-
stant-power discharge tests) under highly realistic conditions.
● Setting of various conditions Variable rise/fall time function
When the set current needs to change abruptly, a rise/fall time (Tr/Tf)
to reach the set value can be selected using one of eight values be-
tween 50
µ
s and 10 ms. This allows the instruments to set up various
conditions for tests in order to support tests such as transitional re-
sponse tests of power supplies. The instruments can also produce
accurate simulation waveforms using the sequence function. If the
device being tested has an L component, setting Tr/Tf to a slower
interval will prevent overvoltages caused by the L component. (Note:
available Tr/Tf time settings = 50
µ
s, 100
µ
s, 200
µ
s, 500
µ
s, 1 ms, 2
ms, 5 ms, and 10 ms)
● Sequence function that allows complicated current simula-
tions
Because instruments in the PLZ-3W/3WH Series have a sequence
function that sequentially processes the data stored in each step
memory, a variety of current simulations may be performed. Sequence
data can be input either from the front panel or through an external
controller using an optional interface. Input data may also be stored
in an optional memory card. The sequence function offers two modes:
a fast-speed mode that enables programming of 100
µ
s high-speed
steps, and a normal-speed mode that allows programming of ramp
waveforms in a single step.
● Setup function and backup memories
Different set values can be stored as part of a setup routine in the
built-in backup memories and in the optional memory card, where
they can be easily accessed. These backup memories can store a
maximum of four setups and the memory card, 50 setups.
● Remote sensing that compensates precisely for set values
Remote sensing will compensate for voltage drops in load lines, al-
lowing resistance, voltage, and power values to be set precisely. This
Rise/fall time(in C.C mode)
H: 0.2 ms/div,V: 12A/div
Rising and falling waveforms of
50
µ s and 200 µ s
To Support Today’s More Diverse Experiments and Tests
Sequence mode (in C.C mode
and fast-speed mode)
H: 5 ms/div,V: 10 A/div
● Sequence function
■ Normal Speed
Settable items I SET value (constant current),
R SET value (constant resis
tance),
P SET value(constant power),
V SET value(constant voltage)
Trigger output
Load on/off
Setting of short-circuit function
Specification of step transition or
ramp transition
Step execution Time can be set for each step.
time However,the range is fixed for
each sequence.
(1)1 to 9999 ms
(2)1 to 999.9 s
(3)1 s to 999 min and 59 s
(4)1 min to 999 hr and 59 min
Pause Provided
Maximum number
of steps
256
Number of repetitions 1 to 9998 and ∞
Number of programs 16
Number of sequences
to be stored in a
8
memory card
Number of sequences
32 Maximum
■ Fast speed
Settable items I SET value (constant current),
R SET value (constant resis
tance),Trigger output
Step execution Step time can be set on a
time program basis.
(1)0.1 ms to 100 ms
Pause Not provided
Maximum number
of steps
1024
Number of repetitions 1 to 9998 and ∞
Number of programs 16
Number of sequences
to be stored in a
8
memory card
Number of sequences
32 Maximum
especially improves the transitional characteristics in the C.R and C.P
modes.
● Trigger signal output useful for waveform monitoring
The instruments will output trigger signals when trigger output is speci-
fied either in sequence operation or during switching operation. These
signals can then be used as synchronous signals for external instru-
ments such as oscilloscopes, providing an easy means of waveform
observation.