PLZ-U Series

PLZ-U

128,000885,000

  • Slew rate of 2.4A/μs in the rising and falling edges in CC mode (PLZ150U)
  • Built-in three ranges; voltmeter, ammeter, and wattmeter
    functions that provide readings of up to five digits
  • The current slew rate can be changed continuously in
    constant current and constant resistance modes
  • Supports 0-V input – an indispensable feature for testing
    single-cell fuel cells
  • Individual units (channels) can operate either independently
    or in synchronization
  • Up to 5 load units of the same model can be operated in parallel.
  • Up to three values can be stored in memory for each most
    frequently used operation mode and range
  • Equipped with various types of protection circuits:
    Over Voltage Protection(OVP), Over Current Protection(OCP), Over
    Power Protection(OPP), Over Heat Protection(OHP), Under Voltage
    Protection(UVP), And Reverse Connection Protection(REV)
  • GPIB/RS232C are standard interface
  • External control is available to turn on or off the output

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ImageSKUFramesPLZ70UAPLZ150UALL UNITS標準価格
PLZ70UA----143,000
(税込:157,300
PLZ150U----128,000
(税込:140,800
PLZ-30F----138,000
(税込:151,800
Up to 5 load units can be paralleledPLZ-50F----170,000
(税込:187,000
PLZ30F-70UA0-150U1PLZ-30F0 unit1 unit1 unit266,000
(税込:292,600
PLZ30F-70UA0-150U2PLZ-30F0 unit2 units2 units394,000
(税込:433,400
PLZ30F-70UA0-150U3PLZ-30F0 unit3 units3 units522,000
(税込:574,200
PLZ30F-70UA1-150U0PLZ-30F1 unit0 unit1 unit281,000
(税込:309,100
PLZ30F-70UA1-150U1PLZ-30F1 unit1 unit2 units409,000
(税込:449,900
PLZ30F-70UA1-150U2PLZ-30F1 unit2 units3 units537,000
(税込:590,700
PLZ30F-70UA2-150U0PLZ-30F2 units0 unit2 units424,000
(税込:466,400
PLZ30F-70UA2-150U1PLZ-30F2 units1 unit3 units552,000
(税込:607,200
PLZ30F-70UA3-150U0PLZ-30F3 units0 unit3 units567,000
(税込:623,700
電子負荷 装置PLZ50F-70UA0-150U1PLZ-50F0 unit1 unit1 unit298,000
(税込:327,800
電子負荷 装置PLZ50F-70UA0-150U2PLZ-50F0 unit2 units2 units426,000
(税込:468,600
電子負荷 装置PLZ50F-70UA0-150U3PLZ-50F0 unit3 units3 units554,000
(税込:609,400
PLZ50F-70UA0-150U4PLZ-50F0 unit4 units4 units682,000
(税込:750,200
Up to 5 load units can be paralleledPLZ50F-70UA0-150U5PLZ-50F0 unit5 units5 units810,000
(税込:891,000
電子負荷 装置PLZ50F-70UA1-150U0PLZ-50F1 unit0 unit1 unit313,000
(税込:344,300
電子負荷 装置PLZ50F-70UA1-150U1PLZ-50F1 unit1 unit2 units441,000
(税込:485,100
PLZ50F-70UA1-150U3PLZ-50F1 unit3 units4 units697,000
(税込:766,700
Up to 5 load units can be paralleledPLZ50F-70UA1-150U4PLZ-50F1 unit4 units5 units825,000
(税込:907,500
PLZ50F-70UA2-150U0PLZ-50F2 units0 unit2 units456,000
(税込:501,600
電子負荷 装置PLZ50F-70UA2-150U1PLZ-50F2 units1 unit3 units584,000
(税込:642,400
PLZ50F-70UA2-150U2PLZ-50F2 units2 units4 units712,000
(税込:783,200
電子負荷 装置PLZ50F-70UA1-150U2PLZ-50F1 unit2 units3 units569,000
(税込:625,900
Up to 5 load units can be paralleledPLZ50F-70UA2-150U3PLZ-50F2 units3 units5 units840,000
(税込:924,000
電子負荷 装置PLZ50F-70UA3-150U0PLZ-50F3 units0 unit3 units599,000
(税込:658,900
PLZ50F-70UA3-150U1PLZ-50F3 units1 unit4 units727,000
(税込:799,700
Up to 5 load units can be paralleledPLZ50F-70UA3-150U2PLZ-50F3 units2 units5 units855,000
(税込:940,500
PLZ50F-70UA4-150U0PLZ-50F4 units0 unit4 units742,000
(税込:816,200
Up to 5 load units can be paralleledPLZ50F-70UA4-150U1PLZ-50F4 units1 unit5 units870,000
(税込:957,000
Up to 5 load units can be paralleledPLZ50F-70UA5-150U0PLZ-50F5 units0 unit5 units885,000
(税込:973,500
SKU: PLZ-U
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Outline

Multi-Channel Load Systems Can Be Built Easily! Operating Multiple Units in Parallel Offers Large Capacity!*Only load units of the same model can be operated in parallel

The PLZ-U Series provides a set of compact, high-performance multi-channel electronic load systems capable of operating in three modes – constant current, constant resistance, and constant voltage. Adopting the modular (plug-in) design, the Series consists of four models – two frame models and two load unit models. The PLZ-30F frame can configure the load units up to three channels, and the PLZ-50F frame can configure up to five channels. Two load unit models are available, the PLZ-70UA (75-watt load that operates even at 0V) and PLZ-150U (150-watt load that operates from 1.5V up). Load units can be operated in parallel to increase the current capacity or power capacity. By combining different models of load units and frame, the power capacity can be changed from 75W to 750W (when five PLZ150U units are mounted in a PLZ-50F frame). Supporting the GPIB and RS-232C interfaces as standard, the electronic load can be built into various types of test systems, making it useful in testing fuel cells, secondary cells0, DC/DC converters, switching power supplies, multiple-output power supplies, and more. Both interfaces support IEEE 488.2 as well as the Standard Commands for Programmable Instruments (SCPI) commands, developed for testing and measuring instruments.

Feature

Five operation modes

The system is capable of operating in five modes - constant
current, constant resistance, constant voltage, constant current
+ constant voltage and constant resistance + constant voltage.

The system is capable of operating in five modes – constant current, constant resistance, constant voltage, constant current + constant voltage and constant resistance + constant voltage.

Variable slew rate

The slew rate determines the slope of change in the current when the set current needs to change sharply as in a transient response test. This system lets you set the current change rate per unit time as appropriate for the selected current range.

Variable slew rate

High precision and high resolution

The built-in three-range configuration provides both wide dynamic range and high precision. The voltmeter, ammeter and wattmeter functions that display values using up to five digits eac h and a minimum set ting resoluti on of either 10μA (PLZ70UA) or 20μA (PLZ150U) are implemented.

The built-in three-range configuration
provides both wide dynamic range and
high precision. The voltmeter, ammeter
and wat tmeter functions that display
values using up to five digits each and
a minimum setting resolution of either
10 μA (PLZ70UA) or 20 μA (PLZ150U)
are implemented.

0-V input

The PLZ70UA model operates even when the input operating voltage is 0 V. This feature is indispensable for testing single-cell fuel cells. The continuing trend toward lower power consumption and semiconductor process miniaturization is driving semiconductor devices to operate with increasingly lower voltages. This makes PLZ70UA suitable for use when evaluating such power supplies.

Diverse load on/off operations

Both load units and frames have LOAD keys on them. The load on/off operations listed below are available. You can choose any of these operations as suitable for your operating environment.

Diverse load on/off operations

Channel-synchronized operations

You can have all the channels operated in synchronization for the load on/off, ABC preset memory, setup memory and sequence operations, respectively.

You can have all the channels operated in synchronization for
the load on/off, ABC preset memory, setup memory and sequence operations, respectively.

Frame control

By connecting two or more frames, you can perform channel-synchronized load on/off, ABC preset memory call and setup memory call operations for all the channels simultaneously while controlling up to four frames from a single frame.

フレーム制御

Parallel operation

Adjacent load modules of the same model installed in the same frame can be operated in parallel*. Parallel operated load modules are regarded as a single channel, and their total current and resistance (conductance) values are used as displayed and set values. Parallel operated load modules and standalone load modules can coexist in the same frame. *PLZ-50F can accommodate up to five load modules.

When PLZ-50F houses one set of three parallel operated load modules and another set of two parallel operated load modules

When PLZ-50F houses one set of three parallel operated load modules and another set of two parallel operated load modules

When PLZ-50F houses one set of three parallel operated load
modules and two standalone load modules Number of parallel operated load modules and capacities

Sequence function

The sequence function automatically executes a stored program step by step in constant current or constant resistance mode. You can set a value and an execution time for each step individually, which enables you to perform simulations with various waveforms. A separate program can be prepared for each channel, and the backup function retains these programs even if the system is powered off.

The sequence function automatically executes a stored program step by step in constant current or constant resistance mode.

Elapsed time display and auto load off timer

Combining four functions – elapsed time display, under voltage protection (UVP), load off voltage display and auto load off timer – makes it possible to perform two types of measurements that are useful in battery discharge tests – measurement of the time elapsed from the start of discharge until the final voltage is detected and measurement of the closed circuit voltage after the specified time elapses from the start of discharge.

Elapsed time display and auto load off timer

Switching function

Switching operations can be performed in constant current and constant resistance modes. The switching setting parameters are the switching level, switching frequency, duty factor and slew rate. These parameters can be changed while this mode is in operation.

Switching setting parameters

Soft start function

The soft start function allows the rise time of the current to be changed after the load-on operation in constant current mode. Since the rise time for the system can be changed according to the output-voltage rise time for the device being tested, you can conduct tests under highly realistic load conditions. (The soft start time can be selected from the following options – 0.1, 1, 3, 5, 10, 30, 100 and 300 ms.)

Soft start function

Setup memories

Up to four of the set values listed below can be saved in the setup memories. The set values are called or saved for all the channels simultaneously.

  • Operation mode (CC, CR and CV/+CV)
  • Current, resistance and voltage values recorded when saved
  • Range setting
  • Slew rate
  • Switching frequency, duty factor and level
  • Soft start
  • Configuration settings
  • ABC preset memory data
  • Auto load off timer
  • Sequence

Remote sensing function

The remote sensing function compensates for voltage drops in load lines. It is used to set resistance and voltage values correctly and to make accurate voltage and power measurements. Particularly, the function improves the transitional characteristics in constant voltage and constant resistance modes, leading to stable operation.

Configuration setting

This function configures the settings related to the system operation, communication environment, etc. These settings are stored in the system memory and called when the power is turned on.

  • Number of parallel operated load modules
  • Operation mode in which the external reference voltage input is used
  • Over current protection (OCP) load off function
  • Over power protection (OPP) load off function
  • Load on delay time
  • Load on/off operation at the end of the sequence
  • Polarity of load on external control (low/high)
  • Load on/off operation at powering on
  • Choice between GPIB and RS-232C
  • GPIB address setting
  • RS-232C communication speed

Ease of operation

All the knobs and keys necessary for the setting operations are provided on the frame panel. You can perform the setting operations by one hand while viewing the measured voltage and current values displayed on a channel-by-channel basis. The analog-like rotary knobs, which employ rotation speed-sensitive encoders, and intuitive design make the system veryeasy to operate.

Key lock function

This function locks the panel keys so that the set values, memory data, sequences and other settings cannot be changed.

Numerous protection functions

The system features the following protection functions – over current protection (OCP), over power protection (OPP), over-voltage protection (OVP), under voltage protection (UVP), over heat protection (OHP) and reverse connection protection (RVP). Because the OCP, OPP and UVP values can be changed on a per-channel basis, you can optimize the protection settings for each device to be tested.

⟨NOTICE⟩PLZ70UA
The operating voltage is guaranteed by the input terminal of the load unit. Be sure to select a load cable that never inputs a voltage of 0V or less to the load unit input terminal. This system detects the no-signal condition. The no-signal condition is detected when the voltage at the load unit input terminal is 0.3V or less and when the input current is equal to or less than about 1 % of the rating, in which case the current will stop flowing.

Front Panel Explanation

Front Panel Explanation

  1. Front-panel load input terminals These terminals are used to connect this system to the device to be tested. Identical sets of load input terminals are provided on the front and rear panels, and are connected in parallel inside the system.
  2. Front-panel remote sensing terminals Sensing lines are connected to these terminals. Identical sets of remote sensing terminals are provided on the front and rear panels, and are connected in parallel inside the system.
  3. LOAD key
  4. Range indicators These indicators indicate the ranges of the CC, CR and CV operation modes.
  5. Operation mode indicators These indicators represent the CC, CR and CV operation modes.
  6. ABC preset memory lamps When data is called from the preset memory A, B or C, the corresponding LED illuminates.
  7. Channel indicator This indicator shows the channel number of the load module.
  8. Measurement value display area This area displays a pair of measurement values of the load module in conjunction with the module indicators. Pairs of measurement values that can be displayed are voltage/current, voltage/power, current/power, and elapsed time/alarm or load-off voltage.
  9. Unit indicators The LED indicates the unit of the measurement value.
  10. SW/SEQ/EXT/ALM lamps
  11. DISP key Pressing this key changes the pair of measurement values shown in the measurement value display area. You can switch among the following pairs of measurement values – voltage/current, voltage/power, current/power, and elapsed time/alarm or load-off voltage.
  12. INDEP key This key is used to make the load module operate independently in connection with the load on/off and ABC preset memory functions.
  1. LOAD key Pressing this key turns on or off the current flow on all the channels simultaneously. This load on/off function does not take effect for those channels operating in independent mode.
  2. CC, CR and CV/+CV keys These keys are used to select the operation mode. The selectable operation modes are CC, CR and CV/+CV.
  3. RANGE/V RANGE keys These keys are used to select ranges.
    RANGE:
    Used to change the current/resistance range in each operation mode. Each time you press the RANGE key, the current range changes to the next one in the following order – L, M and H.
    V RANGE:
    In the CV, CC+CV or CR+CV mode, each time you press this key while holding down the SHIFT key, the range toggles between L and H.
  4. SET key This key is used to select whether the current, resistance or voltage value to be set. In the CC+CV or CR+CV mode, each time you press the SET key, the current or voltage value is selected alternately.
  5. Range indicators These indicators indicate the ranges of the CC, CR and CV operation modes.
  6. Channel indicator This indic ator shows the c ur rently selec ted channel number that is being set.
  7. Set value display area This area displays the set value, setup memory number, configuration value, etc.
  8. Unit indicators The LED indicates the unit of the set value.
  9. SW, SEQ and STORE lamps These lamps illuminate when the switching mode is on, when the sequence mode is on and when the set up memory is waiting to store data, respectively.
  10. A/B/C key The three preset values A, B and C can be saved and called on a channel-by-channel basis.

Rear-panel

  1. Rear-panel load input terminals These terminals are used to connect this system with the device to be tested. They are connected to the load input terminals on the front panel in parallel inside the system.
  2. Rear-panel remote sensing terminals Sensing lines are connected to these terminals when compensating for voltage drops due to load wire resistance. Identical sets of remote sensing terminals are provided on the front and rear panels, and are connected in parallel inside the system.
  3. Air vents Cooling fans expel air through these vents to keep the temperature inside the system constant. The rotation speed of the cooling fans are controlled according to the internal temperature.
  4. AC INPUT
  5. GPIB
  6. RS‐232C
  7. FRAME CONTThis connector is used to perform load on/off, memory call and other operations from the outside.
  8. CH CONTThis connector is used to perform load on/off and external voltage reference control from the outside. It is also equipped with the terminals for current monitor output and power supply output for control.

Dimensions(mm)

PLZ-30F

(PLZ-30F)

PLZ-50F

spec

Operation Area Diagram

PLZ70UA (0 V input type)

H range
H range

M range
Mレンジ

L range
Lレンジ

PLZ150U(1.5V input type)

H range
H

M range
M

L range
L

Please feel free to contact us with any questions or concerns.

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