Atec PLZ1003W User Manual

PLZ-3W/3WH series

Note: The model SMC-32 Memory Card was 

discontinued. Therefore,the function related to Memory 

card of this product is not equipped. <Oct. 2001>

ELECTRONIC LOAD (CC·CR·CV·CP)

Four types of power rating: 150W,300W,600W,and 1000W, a total of eight models Ready for constant current, constant resistance, constant voltage, and constant power modes Capable of doing actual-load simulations under sequence control Maximum input voltage of 500V(PLZ-3WH Series)

Outline

The PLZ-3W/3WH Series are composed of system electronic loads used either in characteristic or lifetime tests of a variety of DC voltage sources such as switching power supplies and primary and secondary batteries, or as burn in loads. Instruments in the PLZ-3W Series have four operation modes: “constant current”, “constant resistance”, “constant voltage”, and “constant power”. They are also available in four different power ratings, 150 W, 300 W, 600 W, and 1000 W, with a total of eight models available overall. Incorporating a high-performance current control circuit, all instruments provide highly stable, high-speed operation and offer improved operability and multi-functionality through the use of CPU control. These features allow them to simulate actual load tests of power supply units having large transitional changes in their output currents, such as printers and motors. In the constant power mode,

these instruments deliver performance in carrying out load tests on alkaline and other types of batteries. Furthermore, the PLZ3WH Series accept DC input voltages of up to 500 V, making it ready for use at high voltages. And when an optional GPIB or RS-232C interface is employed, these instruments can be operated by fully programmable control. In particular, take advantage of a Kikusui-designed multi-channel bus (MCB) to simultaneously control a maximum of 16 instruments per GPIB address or RS-232C port. (Note: In addition to the PLZ-3W/ 3WH series, this MCB will also handle PAX Series programmable power supplies and PBX Series bipolar power supplies.)

Front Panel

PLZ303WH

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

3 4 5

1 Load terminals on the front panel

Used to connect to the device being tested. They are connected in paral lel to the load terminals on the rear panel. (Note that PLZ603W/603WH and PLZ1003W/1003WH have no load terminals on the front panel.)

2 LOAD key

Turns on/off current that flows through the instrument.

3 Screen (LCD with back light)

Displays the set values of current, resistance, voltage, and power; menu items; and a variety of parameters and messages.

4 Constant current (C.C) / constant resistance (C.R) lamps

Indicate whether the instrument is in C.C or C.R mode.

5 Function keys

Used to select each mode, or to set memories or rise/fall time.

6 JOG/SHUTTLE knobs

The JOG knob is used for fine adjustments to set values or to select val ues, and the SHUTTLE knob is used for coarse adjustments to set values.

7 Arrow keys

Used to select a menu, setting item, or a step number for program editing in the sequence mode.

8 Sequence keys

Menu keys for sequence mode

9 Memory card slot

An optional memory card (SMC-32) is inserted here.

10 Contrast control 11 Optional board slot

An optional interface board (one of GPIB, RS-232C, and MCB) is in serted here.

12 Remote sensing terminals

Used for remote sensing that compensates for the voltage drop caused by resistance in load cabling.

13 External control connector 14 Load terminals 15 AC input supply voltage range selector switch (on the bottom face)

Rear Panel

PLZ303WH

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

Designed to Meet Today’s More Complex Loading Conditions

● 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 require 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 constant-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 (T r/Tf) to reach the set value can be selected using one of eight values between 50 µs and 10 ms. This allows the instruments to set up v arious conditions for tests in order to support tests such as transitional response 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 µs, 100 µs, 200 µs, 500 µs, 1 ms, 2 ms, 5 ms, and 10 ms)

● Sequence function that allows complicated current simulations

Because instruments in the PLZ-3W/3WH Series have a sequence function that sequentially processes the data stored in each step memory, a v ariety 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 µs high-speed steps, and a normal-speed mode that allows programming of ramp waveforms in a single step.

Rise/fall time(in C.C mode) H: 0.2 ms/div,V: 12A/div Rising and falling waveforms of 50 µs and 200µs

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),

Step execution Time can be set for each step. time However,the range is fixed for

Pause Provided Maximum number of steps 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),

Step execution Step time can be set on a time program basis.

Pause Not provided Maximum number of steps 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

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

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

256

R SET value (constant resis tance),Tr igger output

(1)0.1 ms to 100 ms

1024

To Support Today’s More Diverse Experiments and Tests

● 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, allowing resistance, voltage, and po wer v alues to be set precisel y. This

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 specified either in sequence operation or during switching operation. These signals can then be used as synchronous signals for external instruments such as oscilloscopes, providing an easy means of waveform observation.

To Support Today’s More Diverse Experiments and Tests

● Three-memory function and switching function

Individual set values can be stored in three memories [A], [B], and [C] and can be recalled freely. F or the C.C and C.R modes, the instruments have a switching function that recalls these values from the

memories in the order [A], [B], [C], [A], [B], [C], .... and executes

them repeatedly.

Switching waveform (in C.C mode) H: 5 ms/div, V: 10A/div Memory A 0 A, 12 ms Memory B 30 A, 10 ms Memory C 59 A, 15 ms

● Soft-start function that suppresses output voltage distortion

The start-up time of the instruments can be changed in accordance with the output-voltage rise time for the device being tested. This allows them to conduct tests which more closely approximate realworld conditions. (Soft-start time: Selectable from 0.1, 1, 2, 5, 10, 20, 50, and 100 ms) Note: In case of PLZ-3WH series, selectable from 0.5ms.

● Short-circuit function that allows instantaneous setting of the maximum current

During operations in C.C or C.R mode, pressing the SHORT key allows you to set either the maximum current value (in C.C mode) or minimum resistance value (in C.R mode) of the range instantaneously , without using the JOG or SHUTTLE key. In addition, when a largecurrent relay or other element is connected to the external control connector as shown below, if the voltage at the load terminals falls below approximately 1.5 V, the load terminals will be in a short-circuit state. This allows the instruments to perform effectively at currents of 1.5 V or less during current-limiting drooping characteristic tests of DC power supplies.

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

Device being tested

Large-current relay

PLZ-3W/3WH

Series

Buffer

DC power supply start-up time Electronic load start-up time

Example where soft-start is not used

Time

Example where soft-start is used

Time

To Meet More Expanding Applications

● Memory card that allows significantly improved operability

Data set from the front panel or through GPIB can be saved in the optional memory card. Using this card, other sections such as production and inspection lines can easily recall setup data and set up current simulation data.

Memory card (SMC-32)

● Parallel operations that offer increased current and power capacities

The PLZ-3W/3WH Series allow parallel connection of identical models in order to increase current and power capacities. In parallel operations, a single master unit can control multiple slaves, such as setting total current for all. Naturally, the total current is also displayed on the monitors. A maximum of five instruments can be operated in parallel.

Model

PLZ153W 300W,60A 450W,90A 600W,120A 750W,150A PLZ303W 600W,120A 900W,180A 1200W,240A 1500W,300A PLZ603W 1200W,240A 1800W,360A 2400W,480A 3000W,600A PLZ1003W 2000W,400A 3000W,600A 4000W,800A 5000W,1000A PLZ153WH 300W,15A 450W,22.5A 600W,30A 750W,37.5A PLZ303WH PLZ603WH PLZ1003WH

Rated capacities in parallel operations For 2 units For 3 units For 4 units For 5 units

600W,30A 900W,45A 1200W,60A 1500W,75A 1200W,60A 1800W,90A 2400W,120A 3000W,150A 2000W,100A 3000W,150A 4000W,200A 5000W,250A

* Please order parallel operation cable (model PC01-PLZ-3W) when connecting the PLZ-3W/3WH Series in parallel.

PLZ-3W/3WH series

RS-232C

MCB bus

16 units maximum

ELECTRONIC LOAD (CC·CR·CV·CP)

Interfaces

When an optional interface is used, the PLZ-3W/3WH Series allow the PLZ-3W/3WH front panel to be fully controlled through an external controller. Since the e xternal contr oller can also read back DC input voltage, DC input current, and DC input power values in addition to set values, you can use this capability to configure various systems. Suitable interfaces include the IB11 GPIB and RS11 RS232C interfaces, both of which include the Kikusui-designed multichannel bus (MCB) feature. This allows a maximum of 16 units to be controlled for a single address of the GPIB interface or a single port of the RS-232C interface. (Note: The slot for an optional board allows an IB11, RS11, or MC11S to be connected.)

Interface slot

A variety of optional interfaces

● MCB system (Example 1)

The use of the MCB allows easy configuration of various large systems when you wish to test a large number of devices together, conduct load tests of multi-output switching power supplies, or attempt related applications.

● MCB system (Example 2 )

The MCB can also be used for the PAX Series high-speed programmable DC power supplies and PBX Series high-speed bipolar power supplies. Thus, for example, use of a RS-232C allows a single notebook PC to configure a DC/DC converter test system using either the PAX or PBX Series, as shown below.

Notebook PC

RS-232C

PAX•PBX

Output 1

Remote Control

By connecting a remote controller RC02-PLZ or 10-keypad RC11 to the PLZ-3W/3WH Series, you can directly input values for current (I SET), resistance (R SET), and power (P SET) or time settings. In particular, the RC02-PLZ allo ws the PLZ-3W/3WH front panel to be controlled in hand.

● Remote controller RC02-PLZ

Control items:

● Same setting features as on front panels of instruments

● Direct setting (numeric input) of I SET, R SET,V SET and P SET

values

● Direct setting (numeric input) of above SET values and time in the

memories A, B, and C

● Direct setting (numeric input) of I SET , R SET, V SET , and P SET

values and time in the sequence mode

DC input

DC/DC

converter

Output 3

PLZ-3W/3WH

Output 2

PLZ-3W/3WH

MCB

● 10-key pad RC11

Control items:

● Direct setting (numeric input) of I SET, R SET, V SET, and P SET

values

● Direct setting (numeric input) of the above SET values and time in

the memories A, B, and C

● Direct setting (numeric input) of I SET, R SET, V SET, and P SET

values and time in the sequence mode

● Load on/off

Applications

● Actual-load simulations

The sequence function is used to capture real waveform data into the memory card. This allows actual-load sim ulations to be conducted.

Capturing Data: The load current of a motor is captured using an oscilloscope, and the waveform data is saved in the memory card of the PLZ-3W/ 3WH through the GPIB interface. Calling the data: As the data stored in the memory card is available even when the GPIB interface is disconnected, you can do actual-load simulations in test lines or without integrating a complicated system.

DC power supply

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

● Automatic test system for DC current

Combining the PLZ-3W/3WH Series with a Kikusui PCR-L Series AC power supply allows you to configure an automatic test system for switching power supplies.

AC input side test ... PCR-L Series:

● Power line abnormality simulations

● AC line regulation tests

● Instantaneous power failure tests and others

DC roading test ... PLZ-3W/3WH Series:

● Loading simulations

● Load regulation tests

● Transitional response tests

● Current-limiting characteristic tests and others

Controller

DC power supply

Data transfer

GPIB

Storing waveform

Transferring to

memory card

Disconnecting the GPIB interface

Motor or other equipment

COR5500U Series digital oscilloscope

or other models

PLZ-3W/3WH

Series

Memory card

PLZ-3W/3WH Series

Memory card

Contoroller

PCR-L Series for setting

input conditions

GPIB

Switching power

AC power

supply

Digital oscilloscope Data acquisition

by the COR5500U Series or other models

PLZ-3W/3WH Series for setting loading conditions

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

Specifications(PLZ-3WH series)

■ Operating Area

Operating voltage (DC)*1 Current 7.5 A 15 A 30 A 50 A Power 150 W 300 W 600 W 1000 W Minimum operationstarting voltage*2

*1 Current can flow in a range of 1 to 5 V. However, the specifications for this instru

ment may not be met.

*2 Minimum voltage at which current starts to flow in the instrument

■ Constant Current Mode

Operating range

Range H 0 to 7.5 A 0 to 15 A 0 to 30 A 0 to 50 A Range L 0 to 0.75 A 0 to 1.5 A 0 to 3 A 0 to 5 A Setting accuracy (with respect to rated current)*1

Setting resolution

Range H 2 mA 4 mA 8 mA 13 mA

Range L 0.2 mA 0.4 mA 0.8 mA 1.3 mA Stability Line regulation*2 3 mA

DC input voltage regulation*3 Temperature coefficient ±100 ppm/°C of rated current (typical value)

Ripple noise*4

RMS*5 2 mA 2 mA 3 mA 5 mA

Measuring current*6 At 7.5 A At 15 A At 30 A At 50 A

Peak-to-peak 20 mA 20 mA 30 mA 50 mA

Measuring current At 7.5 A At 15 A At 30 A At 50 A

*1 In a range of 23±5°C *2 With respect to a variation of ±10% of the center value of the input supply voltage at

the rated current of 20 V input voltage

*3 Value obtained when input voltage is varied from 5 V to 500 V at the current of rated

power/500 V

*4 At the rated current of 20 V input voltage *5 5 Hz to 500 kHz *6 DC to 15 MHz

■ Constant Resistance Mode

Operating range

Range H*5

Range L*5

Setting resolution

Range H*6 0.156 mS 0.3125 mS 0.625 mS 1 mS

Range L*6 0.0156 mS 0.03125 mS 0.0625 mS 0.1 mS

Setting accuracy

(current conversion)*1 Stability

DC input voltage regulation*2 Temperature ±(1000 ppm/°C + 4 mΩ/°C) coefficient at minimum resistance value Ripple noise*4 Complies with graph 1 (typical values)

*1 In a range of 23±5°C and at 12 V input voltage *2 With respect to an input voltage change of 5 V to 12 V at the minimum resistance

value. For other resistance, the voltage variations will be within 6% of the maximum

conductance (S) value of the setting range with respect to variations in allinput

voltages. (with the load terminals remote sensed)

*3 α= 12 V ÷ set resistance - 12 V ÷ (set resistance + 120 mΩ) *4 A repetitive noise of about 155 kHz may be superimposed on input current. *5 S:siemens *6 mS: millisiemens

Note: Conductance (S) x input voltage (V) = load current (A)

Conductance (S) = 1/resistance (Ω)

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

5 to 500 V

1 V

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

±(0.3% ±(0.3% ±(0.3% ±(0.3%

+ 7.5 mA) + 15 mA) + 30 mA) + 50 mA)

20 mA

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

1.6Ω to 20kΩ 0.8Ω to 10kΩ 0.4Ω to 5kΩ 0.24Ω to 3kΩ

0.625 to 1.25 to 2.5 to 4.17 to

5× 10-5 S 1× 10-4 S 2× 10-4 S 3.3× 10-4 S

16Ω to 200kΩ 8Ω to 100k Ω 4Ω to 50kΩ 2.4Ω to 30kΩ

0.0625 to 0.125 to 0.25 to 0.417 to

5× 10-6 S 1× 10-5 S 2×10-5 S 3.3× 10-5 S

±(1% of rated current +a)*3

■ Constant Voltage Mode

Operating range (DC) 5 V to 500 V Setting accuracy*1 ±0.1% of rated voltage Setting resolution 125 mV DC input current regulation*2 Temperature coefficient ±100 ppm/°C of rated voltage (typical value)

*1 In a range of 23±5°C (with the load terminals remote sensed) *2 With respect to an input current change of 10% to 100% of the rated current at 5 V

input voltage (with the load terminals remote sensed)

■ Constant Power Mode

Operating range 15 to 150 W 30 to 300 W 60 to 600 W 100 to 1000 W Setting accuracy*1 ±2% of rated power Setting resolution 0.025% of rated power DC input voltage regulation*2 Ripple current*3 Complies with graph 2 (typical values) Temperature coefficient ±1000 ppm/°C of rated power (typical value)

*1 In a range of 23±5°C and at 20 V input voltage (with the load terminals remote sensed) *2 With respect to an input voltage change of 20 V to 500 V at rated power (with the load

terminals remote sensed)

*3 When the ripple noise of input voltage is 5 mV or less

■ Tr/Tf, Switching and Soft-start Operations, Remote Sensing, and Protective Features

Tr/Tf setting*1

Operation mode Constant current Setting range 50, 100, 200, 500 µs

Setting accuracy*2 ±30% of set value, ±15 µs

Switching operation

Operation mode Constant current, constant resistance Time setting range 1 to 5000 ms Time setting accuracy ±5% of set value

Soft-start operation

Operation mode Constant current(C.C) Setting range 0.5, 1, 2, 5, 10, 20, 50, 100 ms Setting accuracy ±30% of set value, ±100 µs

Remote sensing

Sensing voltage 5 V*3

Protective features

Over current protection (OCP) +5% of rated current. Overheat protection Load current is cut off at a he (OHP) at sink temperature of about 105°C. Reverse connection protection Power transistor protection Overvoltage protection (OVP)

*1 Within an input voltage range of 12 V to 500 V.

Rise time (Tr) and fall time (Tf) are times required to reach 10% to 90% of current waveform.

*2 Tr/Tf setting is valid when the changes in load current fall within a range of 2% to

100% of the rated current value.

*3 2.5 V at one terminal

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

±0.01% of rated voltage

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

2% of rated power

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

1, 2, 5, 10 ms

Limit is activated at about

With diodes and fuses

With fuses

Load switch will be turned off.

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

■ External Control Connector

I/O slot One of IB11, RS11, and MC11S can be connected. Voltage control 0 A when voltage is 0 V, and rated current when terminals for C.C/C.R *1 10 V (in C.C mode)

Resistance control Rated current when resistance is about 0 Ω, terminals for C.C/C.R and 0 A when about 10 kΩ (in C.C mode)

Voltage control terminals for C.P Load-on/off monitoring Photo coupler (open collector) output terminals Rated voltage: 30 V (floating output) Rated current: 5 mA Load-on/off signal Comparator level: about 7 V input terminal 3.3 kΩ is pulled up at 15 V. Range selector signal input terminals Trigger signal output terminals (floating output)

Output resistance 10 kΩ

Output voltage 3.5 V

Pulse width Approx. 10 µs

Trigger input terminals CMOS level Pull down at 100 kΩ. Current monitoring terminals (output of Rated current/1 V a sum of currents) Short-circuit signal output

*1 In full scale, and offset adjustable

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

Maximum resistance when voltage is 0 V, and minimum resistance when 10 V (in C.R mode)

Minimum resistance when resistance is about 0 Ω, and maximum resistance when about 10 kΩ (in C.R mode)

Rated power when voltage is about 10 V

CMOS level 10 kΩ is pulled up at 5 V.

Relay contact output (25 V DC, 0.5 A)

■ Others

Input power supply (AC)

Input supply voltage

range AC

Frequency 50/60 Hz AC

Power consumption (VA)

(When the GPIB

board is connected)

Rush current (A) Approx. 18 Approx. 22 Approx. 28 Approx. 32

Withstand voltage

Primary circuit to

load terminals

Primary circuit to

chassis

Load terminals to

chassis

Insulation resistance

Primary circuit to

load terminals

Primary circuit to

chassis

Load terminals to

chassis

Operating temperature range Operating humidity range Storage temperature range Storage humidity range 30 to 80% RH (no condensation) Weight (kg) Approx. 8.5 Approx. 10 Approx. 16 Approx. 19.5

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

Range Center voltage

[1] 90 to110 100 [2] 108 to132 120 [3] 180 to220 200 [4] 216 to250 240 [1], [2], [3], or [4] is selectable.

Approx. 50 Approx. 50 Approx. 65 Approx. 80

(60) (60) (75) (90)

1500 V AC for 1 min

500 V DC for 1 min

1000 V DC, 30 ΜΩ or more

1000 V DC, 20 ΜΩ or more

0 to 40°C

30 to 80% RH (no condensation)

-20 to 70°C

■ Indicators

Ammeter

Display digits 7.500A 15.00A 30.00A 50.00A Accuracy*1 ±(0.25% of

Temperature coefficient

Voltmeter

Display digits 500.0V Accuracy*1 ±(0.2% of FS + 2 digits) Temperature coefficient

Power meter

Display digits 150.0W 300.0W 600.0W 1000W

*1 In a range of 23±5°C

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

FS + 2 digits)

±(0.25% of FS + 1 digit)

±100 ppm/°C of FS (typical value)

Displays the results of multiplying current value

and voltage value. ±8% of FS

■ Sub-front panel

Current monitoring terminals Remote control 8-pin mini-connector connector (RC11 or RC02-PLZ is connectable.) Trigger signal output terminals

Output resistance 10 kΩ Output voltage 3.5 V Pulse width Approx. 10 µs

Rated voltage

PLZ153WH PLZ303WH PLZ603WH PLZ1003WH

1 V output at rated current

Graph 1 Setting Resistance and Current Ripple

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

Current ripple P-P(A)

0.2

0.1 0

0.1 0.625 1 1.25 2.5 4.16 10

(10Ω) (1.6Ω) (1Ω)(0.8Ω) (0.4Ω)(0.24Ω) (0.1Ω)

0.8

Graph 2 Setting Power and Current Ripple

0.7

0.6

0.5

0.4

Current ripple P-P(A)

0.3

0.2

0.1

•

10 20 30 40 50 60 500

(500V)

Input voltage

Setting resistance(

•

Input voltage(V)

Graph 3 Operationg Range

Rated power

Input current

Ω

)

1000W

600W

•

300W 150W

•

Rated current

(S)

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

Specifications(PLZ-3W series)

■ Operating Area

Operating voltage (DC) Current 30 A 60 A 120 A 200 A Power 150 W 300 W 600 W 1000 W Minimum operationstarting voltage*1

*1 Current can flow in a range of 0.3 to 1.5 V. However, the specifications for this

instrument may not be met.

■ Constant Current Mode

Operating range

Range H 0 to 30A 0 to 60A 0 to 120 A 0 to 200 A Range L 0 to 3 A 0 to 6 A 0 to 12 A 0 to 20 A Setting accuracy (with respect to rated current)*1

Setting resolution

Range H 8 mA 15 mA 30 mA 60 mA Range L 0.8 mA 1.5 mA 3 mA 6 mA

Stability

Line regulation*2 3 mA DC input voltage

regulation*3 Temperature coefficient Ripple noise*4

RMS*5 3 mA 5 mA 10 mA 20 mA

Measuring current*6 At 30 A At 60 A At 100 A At 100 A

Peak-to-peak 30 mA 30 mA 50 mA 100 mA

Measuring current At 30 A At 60 A At 100 A At 100 A

*1 In a range of 23±5°C *2 With respect to a variation of ±10% of the center value of input supply voltage at the

rated current of 5 V input voltage

*3 Value obtained when input voltage is varied from 1.5 V to 120 V at the current of rated

power/120 V *4 At the rated current of 1.5 V input voltage *5 5 Hz to 500 kHz *6 DC to 15 MHz

■ Constant Resistance Mode

Operating range

Range H*4

Range L*4

Setting resolution

Range H*5 0.25 mS 0.5 mS 1 mS 2.5 mS Range L*5 0.025 mS 0.05 mS 0.1 mS 0.25 mS Setting accuracy (current conversion)*1

Stability

DC input voltage regulation*2 Temperature coefficient Ripple noise Complies with graph 1 (typical values)

*1 In a range of 23±5°C and at 3 V input voltage *2 With respect to an input voltage change of 1.5 V to 3.0 V at the minimum resistance

value. For other resistance, the voltage variations will be within 6% of the maximum conductance (S) value of the setting range with respect to variations in all input voltages. (These values were obtained with the load terminals remote sensed.)

*3 α= 3 V ÷ set resistance - 3 V ÷ (set resistance + 8 mΩ) *4 S:siemens *5 mS: millisiemens Note: Conductance (S) x input voltage (V) = load current (A) Conductance (S) = 1/resistance (Ω)

PLZ153W PLZ303W PLZ603W PLZ1003W

1.5 to 120 V

0.3 V

PLZ153W PLZ303W PLZ603W PLZ1003W

±(0.3% ±(0.3% ±(0.3% ±(0.3%

+ 30 mA) + 60 mA) + 120 mA) +200 mA)

10 mA

±100 ppm/°C of rated current (typical value)

PLZ153W PLZ303W PLZ603W PLZ1003W

0.1 to 10 Ω 0.05 to 5 Ω 0.025 to 2.5 Ω 0.015 to 1 Ω

10 to 0.1 S 20 to 0.2 S 40 to 0.4 S 66 to 1 S 1 to 100 Ω 0.5 to 50 Ω 0.25 to 25 Ω 0.15 to 10 Ω 1 to 0.01 S 2 to 0.02 S 4 to 0.04 S 6.6 to 0.1 S

±(1% of rated current + α)*3

±(1000 ppm/°C + 1 mΩ/°C)

at minimum resistance value

■ Constant Voltage Mode

Operating range (DC) 1.5 V to 120 V Setting accuracy*1 ±0.1% of rated voltage Setting resolution 30 mV DC input current regulation*2 Temperature coefficient

*1 In a range of 23±5°C (with load terminal remote sensing) *2 With respect to a change in the input current of 10% to 100% of the rated current at 1.5

V input voltage (with load terminal remote sensing)

PLZ153W PLZ303W PLZ603W PLZ1003W

±0.01% of rated voltage

±100 ppm/°C of rated voltage (typical value)

■ Constant Power Mode

Operating range (DC) 15 to 150 W 30 to 300 W 60 to 600 W 100 to 1000 W Setting accuracy*1 ±2% of rated power Setting resolution 0.025% of rated power DC input voltage regulation*2 Ripple current*3 Complies with graph 2 (typical values) Temperature coefficient

*1 In a range of 23±5°C and at 5 V input voltage (with load terminal remote sensing) *2 With respect to an input voltage change of 6 V to 120 V at rated power (with load

terminal remote sensing)

*3 When the ripple noise of input voltage is 5 mV or less

PLZ153W PLZ303W PLZ603W PLZ1003W

2% of rated power

±1000 ppm/°C of rated power (typical value)

■ Tr/Tf, Switching and Soft-start Operations, Remote Sensing, and Protective Features

Tr/Tf setting*1

Operation mode Constant current Setting range 50, 100, 200, 500 µs

Setting accuracy*2 ±30% of set value, ±15 µs

Switching operation

Operation mode Constant current, constant resistance Time setting range 1 to 5000 ms Time setting accuracy ±5% of set value

Soft-start operation

Operation mode Constant current(C.C) Setting range 0.1, 1, 2, 5, 10, 20, 50, 100 ms Setting accuracy ±30% of set value, ±100 µs

Remote sensing

Sensing voltage 5 V*3

Protective features

Over current protection (OCP) Overheat protection Load current is cut off at a heat sink (OHP) temperature of about 105°C. Reverse connection protection Power transistor protection Overvoltage protection (OVP)

*1 In an input voltage range of 3 V to 120 V.

Rise time (Tr) and fall time (Tf) are times required to reach 10% to 90% of current waveform.

*2 Tr/Tf setting is valid when the range of changes in load current is 2% to 100% of the

rated current value.

*3 2.5 V at one terminal

PLZ153W PLZ303W PLZ603W PLZ1003W

1, 2, 5, 10 ms

Limit is activated at about +5% of rated current.

With diodes and fuses

With fuses

Load switch will be turned off.

PLZ-3W/3WH series

ELECTRONIC LOAD (CC·CR·CV·CP)

■ Indicators

Ammeter

Display digits 30.00A 60.00A 99.99A 99.99A

Accuracy*1 ±(0.25% of FS + 1 digit) ±(0.25% of FS + 3 digits) Temperature coefficient

Voltmeter

Display digits 99.99V 120.0V*3 Accuracy*1 ±(0.2% of FS + 1 digit) Temperature coefficient

Power meter

Display digits 150.0W 300.0W 600W 1000W

*1 In a range of 23±5°C *2 For 100 A or more, up to one digit below the decimal point will be indicated. *3 For 100 V or more, up to one digit below the decimal point will be indicated.

PLZ153W PLZ303W PLZ603W PLZ1003W

120.0A*2 200.0A*2

±100 ppm/°C of FS (typical value)

Displays the results of multiplying current value and voltage value.

■ Sub-front panel

Current monitoring terminals Remote control 8-pin mini-connector connector (RC11 or RC02-PLZ is connectable.) Trigger signal output terminals

Output resistance 10 kΩ Output voltage 3.5 V Pulse width Approx. 10 µs

PLZ153W PLZ303W PLZ603W PLZ1003W

1 V output at rated current

■ Others

Input power supply (AC)

Input supply voltage range (AC)

Frequency 50/60 Hz AC Power consumption (VA) (When the GPIB board is connected) Rush current (A) Approx. 18 Approx. 22 Approx. 28 Approx. 32

Withstand voltage

Primary circuit to load terminals Primary circuit to chassis

Insulation resistance

Primary circuit to load terminals Primary circuit to chassis Load terminals to

chassis Operating temperature range Operating humidity range Storage temperature range Storage humidity range 30 to 80% RH (no condensation) Weight (kg) Approx. 8.5 Approx. 10 Approx. 16 Approx. 19.5

PLZ153W PLZ303W PLZ603W PLZ1003W

Range Center voltage

[1] 90 to110 100 [2] 108 to132 120 [3] 180 to220 200 [4] 216 to250 240 [1], [2], [3], or [4] is selectable.

Approx. 50 Approx. 55 Approx. 70 Approx. 110

(60) (65) (80) (120)

1500 V AC for 1 min

500 V DC, 30 ΜΩ or more

500 V DC, 20 ΜΩ or more

0 to 40°C

30 to 80% RH (no condensation)

-20 to 70°C

■ External Control Connector

C.C/C.R voltage 0 A when voltage is 0 V, and rated current control terminals*1 when 10 V (in C.C mode)

C.C/C.R resistance Rated current when resistance is about 0 Ω, control terminals and 0 A when about 10 kΩ (in C.C mode)

C.P voltage control terminals Load-on/off monitoring Photo coupler (open collector) output terminals Rated voltage: 30 V (floating output) Rated current: 5 mA Load-on/off signal Comparator level: about 7 V input terminal 3.3 kΩ is pulled up with 15 V. Range selector signal input terminals Trigger signal output terminals (floating output)

Output resistance 10 kΩ Output voltage 3.5 V Pulse width Approx. 10 µs

Trigger input terminals CMOS level Pull down at 100 kΩ Current monitoring terminals (output of Rated current/1 V a sum of currents) Short-circuit signal output

*1 In full scale, and offset adjustable

PLZ153W PLZ303W PLZ603W PLZ1003W

Maximum resistance when voltage is 0 V , and minimum resistance when 10 V (in C.R mode)

Minimum resistance when resistance is about 0 Ω, and maximum resistance when about 10 kΩ (in C.R mode)

Rated power when voltage is about 10 V

CMOS level 10 kΩ is pulled up with 5 V.

Relay contact output (25 V DC, 0.5 A)

Graph 1 Setting Resistance and Current Ripple

Current ripple P-P(A)

0.1 0

Graph 2 Setting Power and Current Ripple

4.5 4

3.5 3

2.5

Current ripple P-P(A)

1.5 1

1.5 3 5 10 15 20 120

Rated voltage

(120V)

Graph 3 Operationg Range

Input voltage

0.20 0.1 0.05 0.025 0.01

Setting resistance(Ω)

1000W

600W 300W 150W

60W

Input voltage(V)

Rated power

1.5V

Input current

Rated current

Atec PLZ1003W User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual