PLZ-4WL
3
• The PLZ164WL Electronic Load is also referred to as the
PLZ164WL, the PLZ334WL Electronic Load is also referred
to as the PLZ334WL
• The word computer used in the text is a collective term for
personal computers and workstations.
• The following markings are used in this manual.
Indicates a potentially hazardous situation which, if
ignored, could result in death or serious injury.
Indicates a potentially hazardous situation which, if
ignored, may result in damage to the product or other
property.
Indicates information that you should know.
Explanation of terminology or operation principle.
Indicates reference to detailed information.
>
Indicates menu settings that you select. The menu item to
the left of the > symbol is a higher level menu.
SHIFT+key name
Indicates an operation that requires you to press a key
indicated in blue letters while holding down SHIFT.
Indicates useful information.
The PLZ-4WL Series Electronic Load is a multifunctional
system designed to offer the highest levels of reliability and
safety. The electronic load contains a stable and high-
performance current-control circuit that enables high-speed
load simulations. In addition, its CPU control feature works to
improve operability and multifunctional capability.
The high-precision current settings provide you with sufficient
resolution.
Because the electronic load comes standard with GPIB,
RS232C, and USB communication functions, it can be easily
incorporated into a wide range of test and inspection systems.
PLZ-4WL Series Models
Features
In addition to the high-performance constant-current,
constant-resistance, constant-voltage, and constant-power
modes, the PLZ-4WL Series Electronic Load offers a wide
variety of other features.
High-speed slew rate of 50 A/
µ
s (PLZ334WL)
The rise and fall slew rate of the current when the PLZ-4WL
switches at 2 % to 100 % (20 % to 100 % in M range) of the
rated current in constant current mode is 50 A/µs
(PLZ334WL), which corresponds to fast rise and fall times
of 1.6 µs (for all types).
This allows you to conduct accurate transient-response
tests of DC power supplies and to accurately generate
simulated waveforms for use as dummy loads.
Variable slew rate
In constant current mode, the PLZ-4WL allows configuration
using slew rates (A/µs).
This allows you to optimize the voltage drop caused by the
wire inductance that occurs when a load is switched or to
optimize the transient control of the equipment under test
(such as a constant-voltage power supply).
Higher precision
Higher precision is offered for current settings.
High resolution for minute current settings is provided using
a 3-range configuration. (0.02 mA resolution is possible in
the L range of the PLZ164WL.)
Operability
The PLZ-4WL employs a large LCD.
Measured values of voltage, current, and power at the load
input terminals are indicated at all times. The values are
indicated using larger characters than other sections to
improve visibility.
Coarse and fine adjustments using the rotary knob are
useful for setting values over a wide range.
The easy-to-use memory function enables repetitive tests.
Sequence function
User-defined sequence patterns can be saved to the
internal memory.
Up to 10 normal sequence programs and 1 fast sequence
program can be saved. Normal sequences can contain up
to 256 steps, and the fast sequence can contain up to 1024
steps.
You can edit sequences easily from the large LCD.
Notations used in this manual
WARNING
CAUTION
DESCRIPTION
See
Memo
Model
Maximum
Operating Current
Operating
Voltage
Power
PLZ164WL
50 A
0.3 V to 30 V
165 W
PLZ334WL
100 A
0.3 V to 30 V
330 W
Product Overview
