Kikusui PLZ164W User Manual
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Kikusui PLZ164W User Manual

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Part No. IB020915
Oct. 2015
USERS MANUAL
ELECTRONIC LOAD PLZ-4W Series
PLZ 164 W
PLZ 164 WA
PLZ 334 W
PLZ 664 WA
PLZ 1004 W

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  • Page 1 Part No. IB020915 Oct. 2015 USERS MANUAL ELECTRONIC LOAD PLZ-4W Series PLZ 164 W PLZ 164 WA PLZ 334 W PLZ 664 WA PLZ 1004 W...
  • Page 2 If you find any incorrectly arranged or missing pages in the manual, they will be replaced. If the manual gets lost or soiled, a new copy can be provided for a fee. In either case, please contact Kikusui distributor/ agent, and provide the “Kikusui Part No.” given on the cover.

  • Page 3: Table Of Contents

    Contents Chapter 1 General Information About This Manual - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2 Product Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2 PLZ-4W Series Lineup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3...
  • Page 4 CC Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-10 CR Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-13 CV Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-16 CP Mode...
  • Page 5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - A-15 A.3.1 Operating Area of the PLZ164W - - - - - - - - - - - - - - - - - - - - - - A-15...
  • Page 6 A.3.2 Operating Area of the PLZ334W - - - - - - - - - - - - - - - - - - - - - - A-16 A.3.3 Operating Area of the PLZ1004W - - - - - - - - - - - - - - - - - - - - - A-17 A.3.4 Operating Area of the PLZ164WA - - - - - - - - - - - - - - - - - - - - A-18 A.3.5 Operating Area of the PLZ664WA...

  • Page 7: Chapter 1 General Information

    Chapter 1 General Information This chapter gives an overview and introduces the features of the PLZ-4W Series Electronic Loads. PLZ-4W General Information 1-1...

  • Page 8: About This Manual

    About This Manual This operation manual covers the following PLZ-4W Series Electronic Loads. • PLZ164W • PLZ164WA • PLZ334W • PLZ664WA • PLZ1004W Product version covered This operation manual covers electronic loads with ROM version 1.3x. When contacting us about the product, please provide us the following information.

  • Page 9: Plz-4W Series Lineup

    1. Operating range of 1.5 V to 150 V. (PLZ-4W and PLZ-4WB) 2. Operating range of 0 V to 150 V. (PLZ-4WA) ■ Electronic load Maximum Operating Operating Model Wattage (W) Current (A) Voltage (V) PLZ164W PLZ334W 1.5 to 150 PLZ1004W 1 000 PLZ164WA 0 to 150 PLZ664WA ■ Load booster...

  • Page 10: Features

    ■ Higher precision Higher precision is offered for current settings. Resolution at low current settings is provided using a 3-range configuration. (A 0.01 mA resolution is possible at the L range of the PLZ164W.) ■ Operability The PLZ-4W employs a large LCD.
  • Page 11 The sequence pattern can be edited easily using the large LCD. ■ Useful function for battery discharge tests The PLZ-4W can measure the time from load on to load off. When combined with the under voltage protection (UVP) function, the time from when the battery discharge is started until the battery voltage falls to the cutoff volt- age can be measured (time measurement).

  • Page 12: Overview Of Controls

    Overview of Controls This section describes the controls on the electronic load and combined systems. Operation using the control panel The PLZ-4W employs a large LCD. Measured values of voltage, current, and power at the load input terminal are indicated at all times. The values are indicated using larger characters than other sections to improve the visibility.
  • Page 13 Support for large capacity To achieve large capacity at low cost, the PLZ1004W comes with a load booster (PLZ2004WB). Using a single PLZ1004W as a master unit, up to four load boosters can be con- nected in parallel (9 kW, 1800 A maximum). In parallel operation without using load boosters, up to five electonic loads of the same type including the master unit can be connected in parallel (5 kW, 1000 A maximum).

  • Page 14: Options

    Options Control flat cables Control cable used to connect between the master unit and the slave unit (load booster) and between slave units. The following two types of cables are available. Model Code Length Application the master unit and the slave Connect between PC01-PLZ-4W 84540...
  • Page 15 Inch rack KRB3-TOS EIA standard Rack mount bracket PLZ664WA (Fig. 1-5) PLZ1004W Milli rack KRB150-TOS JIS standard For details, contact your Kikusui agent or distributor. KRA3 KRA150 Unit: mm (inch) Fig. 1-4 Rack adapter KRB150-TOS KRB3-TOS Unit: mm (inch) Fig. 1-5...
  • Page 16 1-10 General Information PLZ-4W...

  • Page 17: Chapter 2 Installation And Preparation

    Chapter 2 Installation and Preparation This chapter describes the procedures of unpacking and preparation before using the PLZ-4W. PLZ-4W Installation and Preparation 2-1...

  • Page 18: Checking The Package Contents

    When you receive the product, check that all accessories are included and that the product and accessories have not been damaged during transportation. If any of the accessories are damaged or missing, contact your Kikusui agent or dis- tributor. NOTE •...

  • Page 19: Precautions Concerning Installation Location

    However, operation in such environments may be possible through alteration. If you wish to use the unit in such environments, consult your Kikusui agent or distributor. ■ Do not place the unit in a dusty location. Accumulation of dust can lead to electric shock or fire.

  • Page 20: Precautions When Moving The Unit

    ■ Do not place objects on top of the unit. Placing objects on top of the unit can cause failures (especially heavy objects). ■ Do not place the unit on an inclined surface or location sub- ject to vibrations. The unit may fall or tip over causing damages and injuries. ■...

  • Page 21: Connecting The Power Cord

    Check that the POWER switch is turned off. Connect the power cord to the AC INPUT connector on the rear panel. Use a power cord specified by Kikusui or one that has been selected by a qual- ified engineer. Insert the power plug to the outlet.

  • Page 22: Grounding (Earth)

    Grounding (Earth) WARNING • Electric shock may occur, if proper grounding is not furnished. • This product is designed as a Class I equipment (equipment furnished with electric shock protection through protective grounding in addition to the basic insulation). Be sure to connect the protective ground terminal to an appropriate earth ground.

  • Page 23: Turning On The Power

    Turning on The Power Overview of the procedure Carry out this procedure without connecting anything to the DC INPUT (load input terminal). Turn on the POWER switch and then operate the LOAD key. At the end, turn off the POWER switch. ”...
  • Page 24 If one of the following conditions applies to your case, carry out the corresponding procedure. If the condition does not change even after taking the countermeasure indicated below, contact Kikusui distributor/agent. Nothing is displayed. Check the power cord connection and power cycle the unit.

  • Page 25: Checking The Rom Version

    The result is saved. Checking the ROM Version Firmware Version ROM Version Fig. 2-5 Model Information screen (PLZ164W) Press the MENU (SHIFT+SET/VSET) key. The menu screen is displayed. Use the CURSOR key to select 4. Model Info. The selected section is highlighted.

  • Page 26: Load Wiring

    Refer to Table 2-1 and select thick wires as much as possible. Table2-1 Nominal cross-sectional area of wires and allowable currents Nominal Cross- (Reference Cross- Allowable Current(*) Kikusui-Recom- Sectional Area Sectional Area) mended Current (Ta = 30 C) (2.08)
  • Page 27 Load wire inductance The load wiring has an inductance (L). When the current (I) varies in short time period, it generates a large voltage at both ends of the wiring cable. This voltage applies to all of the load input terminals of the PLZ-4W when the impedance of the EUT is relatively small.
  • Page 28 If the load wire is long or has a large loop, the wire inductance is increased. Conse- quently, the current variation at the time of switching operation will cause a large voltage drop. When the value of instantaneous voltage drops under the minimum operating volt- age depends on the generated voltage at the load input terminal, the response of recovery will be extensively delayed.
  • Page 29 ■ Operation when the response speed is changed You can change the response speed in CC mode (CC+CV mode) and CR mode (CR+CV mode). In some cases, the wire inductance increases and the phase lag of the current may cause instability in the PLZ-4W control inducing oscillation. In such case, you can decrease the response speed to assure stable operation.

  • Page 30: Connection To The Load Input Terminal On The Rear Panel

    2.8.2 Connection to the Load Input Terminal on the Rear Panel Using the terminal cover The load input terminal cover that comes with the package is used by passing through the load wire. If the wire that you are using is thick and cannot be passed through the cover sleeve (where the wire is passed through), cut and adjust the size of the sleeve to match the thickness of the wire.
  • Page 31 Connection procedure of the load input terminal on the rear panel WARNING • Do not touch the load input terminal while the PLZ-4W is turned ON, as it may lead to electric shock. In addition, be sure to use the load input terminal cover. •...
  • Page 32 Move the cover until the edge touches the panel, and pinch the section indicated by the arrow to raise the side surface. With the side surface of the cover raised, insert the lock plate pin into the hole. Top view Check that the left and right lock plate pins are securely inserted in the cover holes.

  • Page 33: Connection To The Load Input Terminal On The Front Panel

    2.8.3 Connection to the Load Input Terminal on the Front Panel The load input terminal on the front panel can be used to easily connect the equip- ment under test and the PLZ-4W. WARNING • Do not touch the load input terminal while the PLZ-4W is turned ON, as it may lead to electric shock.
  • Page 34 2-18 Installation and Preparation PLZ-4W...

  • Page 35: Chapter 3 For First Time Users

    Chapter 3 For First Time Users This chapter describes for first time users, the operation modes of the PLZ-4W and matters that users should be familiar with in operating the PLZ-4W. PLZ-4W For First Time Users 3-1...

  • Page 36: What Is An Electronic Load

    SWITCHING PRESET SEQ DC INPUT 165W POWER 150V I MON TRIG REMOTE Fig.3-1 PLZ164W (1.5 V input type), PLZ164WA (0 V input type), and PLZ334W (1.5 V input type) ELECTRONIC LOAD 1000W PLZ1004W 150V 0 200A COARSE/FINE CURSOR PREV NEXT...

  • Page 37: Basic Flow Of Operation

    Basic Flow of Operation This section runs through the precautions concerning installation and preparation, the use of the operation panel, and functions that are convenient for performing experiments and tests. • For details on the precautions concerning installation and preparation, see chap- ter 2, "Installation and Preparation.”...
  • Page 38 Warming up the PLZ-4W To perform stable measurements, allow the PLZ-4W to warm up for at least 30 min- utes before starting tests. While the PLZ-4W is warming up, check the operation of the PLZ-4W and the connection of the equipment under test. Voltage drop in the load wire If the load wire is long, a voltage drop occurs due to the resistance of the cable.
  • Page 39 For details on maintenance, see chapter 8, "Maintenance and Calibration.” If the PLZ-4W requires repairs or readjustment, do not open the • outer cover by yourself. Contact your Kikusui agent. • When transporting the PLZ-4W, remove the power cord and cables, and use the original packing materials.

  • Page 40: Operating Area Of The Plz-4W

    If the minimum operating voltage (L5) in the actual operating area is reached, the operating status on the display indicates C.R using outline characters (see section 4.4, "Display”). Operating area where specifications are guaranteed Actual operating area PLZ164W Operating area where specifications are (1.5 V input type) guaranteed H range Actual operating area...

  • Page 41: Basic Operation Modes

    Basic Operation Modes The following six operation modes are available on the PLZ-4W. Constant current mode (CC mode) Constant resistance mode (CR mode) Constant power mode (CP mode) Constant voltage mode (CV mode) Constant current and constant voltage mode (CC+CV mode) Constant resistance and constant voltage mode (CR+CV mode) Below is a description of the most basic CC mode.
  • Page 42 Operating area Constant power line OPP trip point (OPP setting) Logarithmic Input current [A] scale Fig. 3-5 Transition of the operating point in CC mode (OPP trip point) Fig. 3-5: Operation on segment AB If the voltage of the constant-voltage power supply is set to V1 and the input current (load current) of the PLZ-4W is increased, the operating point moves along segment When point B is reached, overpower protection (OPP) trips.

  • Page 43: Let's Use Cc Mode

    2) Set the operation mode, range, current value, and the OPP value. 3) Turn on the load. 4) Change the current value. 5) Turn the load off. ELECTRONIC LOAD 165W ELECTRONIC LOAD 165W PLZ164W PLZ164W 150V 0 150V 0 COARSE/FINE COARSE/FINE CURSOR CURSOR...
  • Page 44 Select CC mode. H 33A 150V 0.00 0.000 Press the MODE key to show the operation mode pop-up menu. 0.000 If CC is not highlighted, press the MODE key repetitively until CC is high- 0.000 lighted. 0.01 mA/μs SLEWRATE When the pop-up menu closes, check that CC appears on the display. Select the current range.

  • Page 45: Chapter 4 Names And Functions Of Parts

    Chapter 4 Names and Functions of Parts This chapter describes the names and functions of switches, connectors, and dis- plays on the front panel and rear panel. PLZ-4W Names and Functions of Parts 4-1...

  • Page 46: Front Panel

    RUN / STOP PAUSE SWITCHING PRESET SEQ DC INPUT 165W 150V I MON TRIG REMOTE [5] I MON OUT [1] DC INPUT [6] TRIG OUT [7] REMOTE [4] POWER Fig.4-1 Front panel (PLZ164W) 4-2 Names and Functions of Parts PLZ-4W...
  • Page 47 [1] DC INPUT (load input terminal on the front panel) The terminal on the front panel that can be used to easily connect the equipment under test and the PLZ-4W. The load input terminal is also available on the rear panel, and is connected in parallel with the load input terminal on the front panel.

  • Page 48: Rear Panel

    100 - 240V 47 - 63Hz 47 - 63Hz 160VA MAX 160VA MAX [5] Manufacturing number [3] AC INPUT [2] Air outlet [8] USB [6] GPIB [7] RS232C Fig. 4-2 Rear panel (PLZ164W) 4-4 Names and Functions of Parts PLZ-4W...
  • Page 49 [1] DC INPUT (load input terminal on the rear panel) Terminal used to connect the equipment under test to the PLZ-4W. It is connected in parallel with the load input terminal on the front panel. • For the connection procedure, see section 2.8.2, “Connection to the Load Input Terminal on the Rear Panel.”...

  • Page 50: Operation Panel

    Operation Panel If you press a key while holding down the SHIFT key, the function indicated below the key is enabled. ELECTRONIC LOAD 165W PLZ164W 150V 0 COARSE/ FINE [2] Rotary knob CURSOR CURSOR PREV PREV NEXT NEXT LOCAL [3] CURSOR...
  • Page 51 INS/DEL/PREV/NEXT Operate the keys while holding down the SHIFT key to turn pages (PREV/NEXT) on the menu screen or insert (INS) or delete (DEL) steps of the sequence function. [4] LOCAL/LOCK key LOCAL Switches to panel control (local control) when the PLZ-4W is being controlled remotely.
  • Page 52 Pressing this key while holding down the SHIFT key (SHIFT+MODE) adds con- stant voltage mode (+CV) to CC mode or CR mode. When in CC mode, this operation switches the mode to CC+CV; when in CR mode, this operation switches the mode to CR+CV. The current mode is indicated on the display.
  • Page 53 [10] OPP/OCP/UVP key OPP/OCP Sets the voltage for tripping the overpower protection (OPP) or the current for trip- ping the overcurrent protection (OCP). This key illuminates when you can set the OPP or OCP. • For details, see section 5.4, “Setting the Protection Function.” Pressing this key while holding down the SHIFT key (SHIFT+OPP/OCP) enables you to set the voltage for tripping the undervoltage protection (UVP).
  • Page 54 [13] LEVEL/% key LEVEL Sets the switching level in switching operation. This key illuminates when you can change the switching level. Pressing this key while holding down the SHIFT key (SHIFT+LEVEL) enables you to set the switching level in terms of a percentage (0.0 % to 100.0 %) of the current setting.
  • Page 55 [15] ENTER/ABC key ENTER Confirms various types of values during menu setup. • Pressing the ENTER key when an alarm is activated resets the alarm. However, the alarm will be activated again if you do not correct the cause of the alarm. Pressing this key while holding down the SHIFT key (SHIFT+ENTER) saves the current settings to the ABC preset memories.

  • Page 56: Display

    Display You can change the display contract by turning the rotary knob while holding down the SHIFT key. The contrast setting is backed up even when the power is turned off. [1] Range display [2] Status display [3] Measured value display [4] Operation status display H 33A 150V H 33A 150V...

  • Page 57: Chapter 5 Basic Operation

    Chapter 5 Basic Operation This chapter describes the operating procedure of each operation mode and other basic functions. PLZ-4W Basic Operation 5-1...

  • Page 58: Panel Control Basics

    Panel Control Basics The PLZ-4W is controlled from the operation panel on the front panel. If you make an invalid selection or perform an invalid key operation, a beep is sounded to notify the error. In particular, please familiarize yourself with the use of the SHIFT key that changes the key function.

  • Page 59: Turning On Or Off The Load

    Turning On or Off the Load “Turning on the load” refers to the operation of supplying current to the PLZ-4W. “Turning off the load” refers to the operation of cutting off the current to the PLZ- 4W. The LOAD key is used to turn on or off the load. Please remember the expres- sion “turning on the load”...
  • Page 60 ■ Displaying the elapsed time after the load is turned on By default, the elapsed time after the load is turned on is not displayed. If you select “1. Setup” | “1. Function” from the menu and set the Count Time set- ting to on, the time from load on to load off can be displayed.
  • Page 61 Even when you follow the procedure specified above, the alarm may occurs, in such case, it may be required to change the voltage setting of CV to prevent the alarm occurance. For details, contact your Kikusui agent or distributor. PLZ-4W...

  • Page 62: Types Of Protection Functions

    Types of Protection Functions The protection function automatically turns off or limits the load when an input that can damage the internal circuit of the PLZ-4W appears and to protect the equipment under test. When a protection function trips, an alarm is activated. When an alarm is activated, the load is turned off (or limited), and the ALARM STATUS of the J1 connector on the rear panel (pin 16) turns on (open collector output by a photocoupler).

  • Page 63: Clearing Alarms

    Undervoltage protection (UVP) The protection trips when the voltage that is equal to or falls below the specified voltage. At this point, the load is turned off. The undervoltage protection can be dis- abled (OFF). • For a description of setting the undervoltage value, see section 5.4, “Setting the Protection Function.”...

  • Page 64: Setting The Protection Function

    Setting the Protection Function You can set trip points for the OCP, OPP, and UVP. ■ Setting the OPP and OCP The OPP and the OCP activate an alarm and turn off the load or limit the power or current when overpower or overcurrent occurs. When LOAD OFF is specified, a pop-up window appears when an alarm is activated.

  • Page 65: Operation Modes

    Operation Modes The following four operation modes are available on the PLZ-4W. Furthermore, constant voltage mode (+CV) can be added to CC and CR modes. • Constant current mode (CC mode and CC+CV mode) • Constant resistance mode (CR mode and CR+CV mode) •...

  • Page 66: Cc Mode

    CC Mode In CC mode, you set the current [A]. You can also add +CV mode to CC mode. Overview of the procedure Select the operation mode, and set the current value. Turn on the load and change the current value. Finally, turn off the load to cut off the current.
  • Page 67 Select the voltage range. Press the VRANGE (SHIFT+RANGE) key. A voltage range pop-up menu appears. Each time you press the VRANGE key, the voltage range switches between 15 V and 150 V. When the desired range is highlighted, stop pressing the key. Set the current value.
  • Page 68 Select the current range and voltage range. Press the RANGE key to select the current range. Press the VRANGE (SHIFT+RANGE) key to select the voltage range. Set the current and voltage values. Check that the display is in the basic setting entry condition (the characters “SET”...

  • Page 69: Cr Mode

    CR Mode In CR mode, you set the conductance [S], an inverse of the resistance. The resis- tance calculated from the conductance is also displayed. • Conductance [S] = 1/resistance [] You can also add +CV mode to CR mode. In CR+CV mode, only the conductance is displayed.
  • Page 70 Select the current and conductance range. Press the RANGE key. A current range pop-up menu appears. Each time you press the RANGE key while the menu is displayed, the range switches in the order L, M, and H. When the desired range is highlighted, stop pressing the key. Along with L, M, or H, the full scale value of the respective range is displayed.
  • Page 71 ■ Operating procedure of CR+CV mode LOAD LOCK MODE SET / VSET RANGE SLEW RATE OPP / OCP RECALL ENTER LOAD + CV MENU VRANGE SHORT STORE SW ON FREQ / DUTY LEVEL SHIFT Th/TL EDIT RUN / STOP PAUSE SWITCHING PRESET SEQ Fig.

  • Page 72: Cv Mode

    CV Mode In CV mode, you set the Voltage [V]. Overview of the procedure Select the operation mode, and set the voltage value. Turn on the load and change the voltage value. Finally, turn off the load to cut off the current. Preparation Main operation Unit behavior...
  • Page 73 Select the voltage range. Press the VRANGE (SHIFT+RANGE) key. A voltage range pop-up menu appears. Each time you press the VRANGE key, the voltage range switches between 15 V and 150 V. When the desired range is highlighted, stop pressing the key. Set the voltage value.

  • Page 74: Cp Mode

    CP Mode In CP mode, you set the wattage (W). Overview of the procedure wattage Select the operation mode, and set the Turn on the load and change the wattage. Finally, turn off the load to cut off the current. Preparation Main operation Unit behavior...
  • Page 75 Select the voltage range. Press the VRANGE (SHIFT+RANGE) key. A voltage range pop-up menu appears. Each time you press the VRANGE key, the voltage range switches between 15 V and 150 V. When the desired range is highlighted, stop pressing the key. Set the wattage value.

  • Page 76: Soft Start

    5.10 Soft start The PLZ-4W can be set to start up slowly of the input current of the PLZ-4W (soft start) in the constant current (CC) mode and the constant resistance (CR) mode when the applying voltage and the turning on the load at the same time, or when the voltage applied with 0 V input of the load input while the load is turned on.
  • Page 77 Select Function. Setu Press the CURSOR key several times until Function is highlighted on Function 2. Protect Action the menu. 3. Memor 4. Cut Off When highlighted, press the ENTER key. 5. Res onse PREV NEXT Select soft start time. Function Check that the cursor is blinking by Soft Start on the menu, and turn the rotary Soft Start...

  • Page 78: Lock Function

    5.11 Lock Function The PLZ-4W can be locked to prevent erroneous operation such as inadvertently changing the settings or overwriting the memory or sequence. The functions that can be used and those that cannot be used when the lock function is enabled are indicated below.
  • Page 79 Select the menu setup. Press the MENU (SHIFT + SET/VSET) key. Menu 1. Setu The menu appears. Confi uration 3. Calibration 4. Model Info Select Configuration PREV NEXT Press the CURSOR key several times until Configuration is high- lighted on the menu. When highlighted, press the ENTER key. Confi uration Select Power On.

  • Page 80: Short Function

    5.12 Short Function The short function is used to immediately set the maximum current (CC mode) or minimum resistance (CR mode). When the short function is enabled, the short signal output of the J1 connector is turned on. The short signal output terminal is connected to a relay contact (30 VDC/ 1 A) and can be used to drive an external relay for high current to short the load input terminal.

  • Page 81: Menu Setup

    3. CC 4. CC 15V See chapter 8, 5. CC 150V “Maintenance and PREV NEXT Calibration.”. Model Information [ PLZ164W ] Displays specific VERSION SUB 1.00 information about the MAIN 1.02 model that you are using. PREV Fig. 5-14 Menu hierarchy ■...
  • Page 82 • Operation of selecting menu items You can also select the menu item by turning the rotary knob. Turning the rotary knob to the right moves the highlight downward; turning it to the left moves the highlight upward. Then, select the next menu. Setu Function Press the...
  • Page 83 Table5-2 Menu items Menu name 1 Menu name 2 Item name Values <*1> 1. Setup 1. Function Soft Start 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, 200 ms Count Time (elapsed time display) OFF, ON 2.

  • Page 84: Initialization

    5.14 Initialization The backup function of the PLZ-4W retains the current settings, menu settings, and memory contents (ABC preset memories and setup memory) even when the POWER switch is turned off. You can initialize the PLZ-4W settings to factory default by carrying out the following operation. •...

  • Page 85: Response Speed

    5.15 Response Speed The PLZ-4W operates by detecting the input current or voltage and feeding back those values. You can set the response speed of the negative feedback control. The response speed can be specified in CC mode (CC+CV mode) and CR mode (CR+CV mode).
  • Page 86 5-30 Basic Operation PLZ-4W...

  • Page 87: Chapter 6 Applied Operation

    Chapter 6 Applied Operation This chapter describes functions such as ABC preset memories, switching function, and sequence function that are used in actual applications. PLZ-4W Applied Operation 6-1...

  • Page 88: Abc Preset Memories

    ABC preset memories Three separate sets of settings for each range of each operation mode can be saved to memories A, B, and C. Settings are saved or recalled after determining the opera- tion mode and range. Settings (A, B, and C) saved in the current operation mode at the current range can be recalled.

  • Page 89: Saving To Abc Preset Memories

    6.1.1 Saving to ABC preset memories Three separate sets of settings for each range of each operation mode can be saved to memories A, B, and C. The settings can be saved even when the load is turned on. Select the ABC preset memories. First, switch to the desired operation mode and set the range and value.
  • Page 90 Select Setup. Press the CURSOR key several times until Setup is highlighted on the menu. When highlighted, press the ENTER key. Select Memory. Press the CURSOR key several times until Memory is highlighted on the menu. When highlighted, press the ENTER key. Select the recall method of ABC preset memories.
  • Page 91 H 33A 150V 0.00 0.000 0.000 8.000 0.01 mA/s SLEWRATE memory A. [Save to ABC preset memory] [Recall ABC preset memory] Press ABC. 8.000 8.000 ENTER Press ENTER. (SAFETY only) memory. H 33A 150V 0.00 0.000 preset 0.000 8.000 CC + CV 0.01 mA/s SLEWRATE...

  • Page 92: Setup Memory

    Setup Memory The setup memory can store up to 100 sets (0 to 99) of the current conditions of the items shown below. You can attach a memo using up to 15 characters to each mem- ory set. The stored settings can be recalled as necessary. ■...

  • Page 93: Saving To The Setup Memory

    ELECTRONIC LOAD 165W PLZ164W 150V 0 COARSE/ FINE CURSOR PREV NEXT LOCAL LOAD LOCK MODE SET / VSET RANGE SLEW RATE OPP / OCP RECALL ENTER LOAD + CV MENU VRANGE SHORT STORE SW ON FREQ / DUTY LEVEL SHIFT...

  • Page 94: Recalling The Setup Memory

    Save the settings to the setup memory. Press the ENTER key. The STORE key illuminates. The settings described above are saved to the memory. If settings are already stored at the selected memory number, the settings are overwrit- ten. The STORE key remains illuminated while the saved settings are used. 6.2.2 Recalling the Setup Memory Check that the load is turned off.
  • Page 95 H 33A 150V 0.00 0.000 0.000 8.000 0.01 mA/μs SLEWRATE RECALL Press STORE. Press RECALL. STORE STORE RECALL ENTER ENTER press ENTER. press ENTER. ENTER ENTER preset H 33A 150V 0.00 0.000 0.000 8.000 CC + CV 0.01 mA/μs SLEWRATE RECALL Press STORE.

  • Page 96: Switching Function

    Switching Function Switching refers to the operation of executing two load current settings repetitively. The switching function operates in CC and CR modes. The switching function is suited to transient response characteristics test of regulated DC power supplies. You can perform various tests by setting the switching frequency, ON/OFF ratio of the switch (duty cycle), switching level, and switching time.
  • Page 97 Turn on the switching mode. Press the SW ON key. The SW ON key illuminates, and the switching mode is enabled. • Setting the switching function using frequency and duty cycle Select switching frequency and duty cycle. Press the FREQ/DUTY key. The FREQ/DUTY key illuminates.

  • Page 98: Setting The Slew Rate

    Setting the Slew Rate The slew rate defines the slope for changing the current when the current is changed rapidly such as by using the switching function in CC and CR modes. On the PLZ- 4W, you set the amount of change in the current per unit time according to the cur- rent range.

  • Page 99: Using The Elapsed Time Display And The Auto Load Off Timer

    Using the Elapsed Time Display and the Auto Load Off Timer Two convenient functions are available for the discharge tests of batteries. • Measure the time from discharge start until the cutoff voltage is reached (time measurement). • Measure the closed circuit voltage after a specified time elapses from discharge start (voltage measurement).

  • Page 100: Sequence Function

    Sequence Function Sequence is a function that automatically executes instructions specified in advance one operation at a time. By specifying a sequence of operations (steps), various waveform simulations can be executed. The sequence that you create is saved by the backup function even when the power is turned off.

  • Page 101: Overview Of The Normal Sequence

    6.6.1 Overview of the Normal Sequence To create a sequence, you must understand the concept of “program” and “step.” Step 001 Program Step 002 Step 003 Step 001 Maximum number of Program Step 002 programs is 10 Step 003 Step 001 Maximum number of Program Step 002...
  • Page 102 • Step In a single step, one execution condition can be specified. In other words, one oper- ation of the executed waveform corresponds to one step. In normal sequence mode, up to 256 steps can be shared among all programs (10 programs). Below are the settings of a step.
  • Page 103 • TRIG (trigger output) TRIG sets the presence or absence of trigger output. When turned on, a trigger sig- nal is output from the TRIG OUT connector on the front panel at the same time as the step is executed. (Example) Set trigger output at step number n (TRIG ON) Step n...

  • Page 104: Sequence Editing

    6.6.2 Sequence Editing The sequence edit screen is divided into the following four edit screens. When creat- ing a sequence, items are set on each edit screen. This section describes the setup items on each edit screen and the setup procedure. (1) Program operation Memo : Pro ram1...
  • Page 105 NOTE • The program operation screen is divided into top and bottom halves. Pressing the key at the bottom line (Loop) of the top half of the screen moves the cursor to the bottom half of the screen. Pressing the key at the first line (Last Load) of the bottom half of the screen moves the cursor to the top half of the screen.
  • Page 106 Table6-3 Setup items on each setup screen Edit screen Setup item Description Program number (1 to 10) Memo Memo (11 characters) Mode Operation mode (CC, CR, CV, or CP) Range Range setting (Current range - Voltage range) Number of program loops Loop (1 to 9999) 9999 is infinite loop Program operation...

  • Page 107: Sequence Example (Normal Sequence)

    6.6.3 Sequence Example (Normal Sequence) Programs are created using the PLZ-4W operation panel. This section describes the procedure of entering the following example sequence from the operation panel. • Flow of the example sequence In this example, we will assume a sequence that executes 2 programs (program numbers 1 and 2) to simulate the waveform of Fig.
  • Page 108 Sets the range. (Range :) Turn the rotary knob to select the current range and voltage range. Memo : Program1 In program 1, set 33 A, 150 V (PLZ164W). Mode : NCC e : 33A, 150V Loop : 0001 After setting the range, move the CURSOR key to move to the next item.
  • Page 109 Set the current setting after the end of the program. (Last Set :) Turn the rotary knob to set the current value. Last Load : OFF Last Set : 0.000 Since the load is turned off at the end of program 1, select 0 A. However, Chain : OFF because the sequence continues to program 2 in this example (step 9), this set-...
  • Page 110 14. Set the execution time of step 1. SEQ EDIT h : m i n : s . m s On the initial screen, the time is 0:00:00.001. Press the key to move the cur- 0:00 : 00 . 001 002 0:00 : 00 .
  • Page 111 Loop : 0002 PREV NEXT (PLZ164W), and the number of program loops to 2. At the last line, move the CURSOR key to move to the next item. 23. Set the load condition after the end of the program and the current value.
  • Page 112 ■ Reediting and confirming the sequence The program that you create is saved by the backup function even when the power is turned off. To confirm or reedit programs you have created, select sequence edit again. Select sequence edit. Press the EDIT (SHIFT+A) key. Memo : Pro ram2 Mode : NCC...

  • Page 113: Overview Of The Fast Sequence

    6.6.4 Overview of the Fast Sequence To create a sequence, you must understand the concept of “program” and “step.” Step 0001 Step 0002 Program 11 Step 0003 Step 1024 Maximum number of steps is 1024 Fig. 6-16 Conceptual diagram of program and step NOTE •...
  • Page 114 A program is a collection of steps (execution unit). When program 11 is executed (RUN), steps are executed one by one in ascending order from step number 0001. The completion of the last step signifies the end of one program execution. •...

  • Page 115: Fast Sequence Editing

    6.6.5 Fast Sequence Editing The sequence edit screen is divided into the following four edit screens. When creat- ing a sequence, items are set on each edit screen. This section describes the setup items on each edit screen and the setup procedure. (1) Program operation Set the program number (always set to 11), memo, operation mode, range, and : 11...
  • Page 116 Table6-4 Setup items on each setup screen Edit screen Setup item Description Program number (11) Memo Memo (11 characters) Mode Operation mode (CC or CR) Range Range setting (Current range - Voltage range) Number of program loops Loop (1 to 9999) 9999 is infinite loop Program operation Load condition after the end of the sequence Last Load...

  • Page 117: Sequence Example (Fast Sequence)

    6.6.6 Sequence Example (Fast Sequence) Programs are created using the PLZ-4W operation panel. This section describes the procedure of entering the following example sequence from the operation panel. • Flow of the example sequence In this example, we will assume a sequence that executes a program to simulate the waveform of Fig.
  • Page 118 • No. Program number (11) • Memo Memo (PLZ164W) • Range Current range-voltage range (33A-15V) • Loop Number of program loops (3) • Last Load Load condition at the end (ON) • Last Set Current value at the end (1 A) •...
  • Page 119 Set the number of program loops. Turn the rotary knob to show the number of program loops. : 11 Memo : Set 0003 to specify 3 loops. Mode : FCC e : 33A , 15V Loop : 0003 At the last line, move the CURSOR key to move to the next item.
  • Page 120 The following three items are specified. Step number Current value Presence or absence of trigger output Press the key to select the item, and turn the rotary knob to set the value or symbol. 11. Set step 1. Press the key to select the step number.
  • Page 121 ■ Monitoring the settings Select sequence edit. Press the EDIT (SHIFT+A) key to display the program edit screen. Press the ENTER key to move to the monitor screen. Set the magnification. 10.00 STEP:0014 Press the key to move the cursor to magnification, and turn the rotary knob to set the magnification.

  • Page 122: Executing, Pausing, Stopping The Sequence

    6.6.7 Executing, Pausing, Stopping the Sequence ■ Executing the Sequence Check that the switching function and short function are turned off. Check that the SW ON key is turned off and that the short icon is not dis- played. Even if turned on, the switching function and short function are forci- bly turned off when the sequence execution screen is entered.
  • Page 123 When sequences cannot be executed Sequences cannot be executed across different modes and ranges. You cannot execute a sequence if the mode or range of the chained program is different. Check the settings. If the load is turned on and the current mode and range settings do not match the settings of the sequence that you are trying to exe- cute, you cannot execute the sequence.

  • Page 124: Remote Sensing Function

    Remote Sensing Function Remote sensing is a function used to correct the voltage drop caused by the resis- tance of the load wire when it cannot be discarded. Execute remote sensing to accu- rately set the resistance, voltage, and power. Remote sensing improves the transient characteristics in the CR, CV, and CP modes and thereby achieves stable operation.

  • Page 125: External Control

    External Control 6.8.1 Overview and Precaution of External Control The settings in each operation mode normally use the internal reference signal. In external control, this reference signal is supplied externally. The external signal is either voltage (voltage control) or resistance (resistance control). External control can control the settings from 0 % to 100 % of the selected range in the CC, CR, CP, or CV mode.

  • Page 126: J1/J2 Connector

    Precaution when operating under high-speed load simulations When operating under high-speed load simulations, do not connect the common ter- minal of the external device and the terminal of the EUT which connects to the neg- ative polarity of load input terminal of the PLZ-4W. Attach the ferrite core on the connecting wire between the external device and the PLZ-4W.
  • Page 127 WARNING • When the PLZ-4W is shipped from the factory, protection dummy plugs are attached to the J1 and J2 connectors. To prevent the possibility of electric shock, leave the dummy plug attached to the connectors when you are not using them.
  • Page 128 Table6-9 J1 connector pin arrangement Signal name Description EXT R/V CONT Can be used in CC, CR, CV, and CP modes 0 V to 10 V correspond to 0 % to 100 % of the rated current (CC mode), rated voltage (CV mode), or rated power (CP mode).
  • Page 129 Table 6-10 J2 connector pin arrangement Signal name Description N.C. N.C. N.C. SUM I MON Connect to SUM I MON of the J1 connector. PRL OUT+ Used during master/slave operation. Connected to PRL IN+ of the J1 connector. PRL OUT- Used during master/slave operation.

  • Page 130: External Control Of Cc Mode

    6.8.3 External Control of CC Mode The external control of CC mode can be carried out using external voltage or exter- nal resistance. The input current varies proportionally to the external voltage or external resistance. (1) External voltage control Applying an external voltage in the range of 0 V to 10 V to the PLZ-4W produces an input current that is proportional to the change.
  • Page 131 ■ Setup procedure for external voltage control This procedure is common to CC, CR, CP, and CV modes. Follow this procedure for modes other than CC mode. NOTE • Use external voltage of low noise and high stability. • Use twisted wires for the signal wires. This can prevent disturbance from noise. Check that the power is turned off.
  • Page 132 ■ Accurately proportionating the external voltage variation and input current variation You can use the pre-set resistors OFS and FSC on the PLZ-4W rear panel to adjust the current offset value and maximum current value, respectively. The adjustment enables control that is accurately proportional to the external voltage. The adjust- ment is valid for the specified range.
  • Page 133 (2) External resistance control Connecting an external resistance in the range of 0  to 10 k to the PLZ-4W pro- duces an input current that is proportional or inversely proportional to the change. Proportional control The input current corresponding to the external resistance of 0  is 0 A; the input current corresponding to the external resistance of 10 k...
  • Page 134 ■ Setup procedure for external resistance control This procedure is common to CC, CR, CP, and CV modes. Follow this procedure for modes other than CC mode. NOTE • It is recommended that the external variable resistor connected to the PLZ-4W be a wire wound resistor, metal film resistor, or multirotational potentiometer that is resistant to temperature and aging.
  • Page 135 NOTE • You can prevent the settings from being changed inadvertently during measure- ment by pressing the LOCK (SHIFT+LOCAL) key to enable the lock. ■ Accurately proportionating the external resistance variation and input current variation You can use the pre-set resistors OFS and FSC on the PLZ-4W rear panel to adjust the current offset value and maximum current value, respectively.

  • Page 136: External Control Of Cr Mode

    6.8.4 External Control of CR Mode The external control of CR mode can be carried out using external voltage or exter- nal resistance. The resistance varies proportionally to the external voltage or exter- nal resistance. (1) External voltage control Applying an external voltage in the range of 0 V to 10 V to the PLZ-4W produces a resistance proportional to the change.
  • Page 137 (2) External resistance control Connecting an external resistance in the range of 0  to 10 k to the PLZ-4W pro- duces a resistance that is proportional or inversely proportional to the change. Proportional control The external voltage of 0  and 10 k correspond to the maximum and minimum resistances of the range, respectively.

  • Page 138: External Control Of Cp Mode

    6.8.5 External Control of CP Mode The external control of CP mode can be carried out using external voltage or exter- nal resistance. The wattage varies in proportion to the external voltage or external resistance. (1) External voltage control Applying an external voltage in the range of 0 V to 10 V to the PLZ-4W produces a wattage proportional to the change.
  • Page 139 (2) External resistance control Connecting an external resistance in the range of 0  to 10 k to the PLZ-4W pro- duces a wattage that is proportional or inversely proportional to the change. Proportional control The wattage corresponding to the external resistance of 0  is 0 W; the wattage cor- responding to the external resistance of 10 k...

  • Page 140: External Control Of Cv Mode

    6.8.6 External Control of CV Mode The external control of CV mode can be carried out using external voltage or exter- nal resistance. The voltage varies in proportion to the external voltage or external resistance. (1) External voltage control Applying an external voltage in the range of 0 V to 10 V to the PLZ-4W produces a voltage proportional to the change.
  • Page 141 (2) External resistance control Connecting an external resistance in the range of 0  to 10 k to the PLZ-4W pro- duces a voltage that is proportional or inversely proportional to the change. Proportional control The voltage corresponding to the external resistance of 0  is 0 V; the voltage corre- sponding to the external resistance of 10 k...

  • Page 142: External Control Of Load On And Load Off

    6.8.7 External Control of Load On and Load Off The external control connector can be used to control the on/off of the load and monitor the on/off condition. External contact control To control the load on/off using an external contact, an external signal is applied across pins 7 and 12 of the J1 connector.

  • Page 143: Trigger Signal Control

    Status signal output To externally monitor the load on/off condition, the output signal across pins 13 and 17 of the J1 connector is monitored. Maximum applied voltage 30 V Maximum current 8 mA Photocoupler (P.C) Load on Load off Photocoupler Fig.

  • Page 144: External Control Of The Current Range

    6.8.9 External Control of the Current Range The current range can be controlled using an external control signal. In addition, the status signal output can be used to monitor the selected range. The voltage range cannot be controlled. Table 6-12 A list of control signals Control input Status output Current...

  • Page 145: Alarm Signal Control

    6.8.10 Alarm Signal Control An alarm can be activated using an external control signal. In addition, the status signal output can be used to monitor the alarm condition. Alarm signal input Connect the external signal across pins +5 V 10 and 12 of the J1 connector. An alarm Approx.

  • Page 146: Monitor Signal Output

    Monitor Signal Output Trigger signal output The trigger signal is used as a synchronization signal when monitoring the wave- form of the switching operation on an oscilloscope. It is also used to synchronize with the external equipment during sequence execution. The trigger signal is output from the TRIG OUT connector on the PLZ-4W front panel.
  • Page 147 Range H/L M I MON OUT connector (BNC) 0.1 V Monitor output Across pins 2 and 3 of the J1 connector 10 V Current Full scale of range (Total value of all units connected in parallel during parallel operation) Fig. 6-48 Current monitor output For parallel operation, the full scale of the current range is the total value of the units connected in parallel.

  • Page 148: Parallel Operation

    6.10 Parallel operation The PLZ-4W Series Electronic Load allows parallel operation in which multiple electronic loads can be connected in parallel to increase the current capacity or power capacity. In parallel operation, one unit becomes a master unit in charge of all controls in parallel operation.
  • Page 149 Parallel connection of two slave units Table 6-13 shows the relationship between the number of slave units and the capacity. Table 6-13 The number of units connected in parallel and the capacity Maximum current/Maximum power Slave unit PLZ164W PLZ334W PLZ664WA PLZ1004W /164WA...
  • Page 150 Parallel connection procedure Connect the master unit and slave units using optional flat cables. Connect to the equipment under test using load wires. For a description of the wiring procedure and wire diameter, see section 2.8, “Load Wiring.” CAUTION • Use a load wire with sufficient diameter for the current as well as non-flam- mable or flame-resistant cover.

  • Page 151: Parallel Operation Using Load Boosters

    • Master unit Set as a master unit. Master/Slave First, turn the rotary knob to the right to select MASTER. Operation : MASTER Parallel : -- Booster : -- When slaves are connected, press the CURSOR key to move the cursor to the Parallel item.

  • Page 152: Alarms During Parallel Operation

    6.10.3 Alarms during Parallel Operation When an alarm occurs during parallel operation, an error message is displayed, and the load of all units is turned off. If an alarm occurs on a slave unit, “ALARM EXTERNAL” is displayed on the mas- ter unit.

  • Page 153: Chapter 7 Remote Control

    Chapter 7 Remote Control This chapter givess an overview of reemote control. For detail of the command, see the Communication Interface Manual. The commnunication Interface Manual is provided on the accompanying CD-ROM. PLZ-4W Remote Control 7-1...

  • Page 154: Overview

    Overview In addition to using the front panel controls, the PLZ-4W can be controlled remotely using the following interfaces. • RS232C interface • GPIB interface • USB interface The remote interface accepts two formats of commands: IEEE 488.2 common com- mands and SCPI commands.

  • Page 155: Interface Setup

    Interface Setup The factory default remote control interface setting is GPIB. 7.2.1 GPIB Control ■ GPIB connection Use a standard IEEE488 cable to connect the PLZ-4W to the PC. ■ GPIB configuration Check that the load is turned off. Check that the LOAD LED is turned off. If it is on, press the LOAD key to turn it off.

  • Page 156: Rs232C Control

    7.2.2 RS232C Control ■ RS232C connection Use a standard cross cable (null modem cable) to connect the PLZ-4W to the PC. The RS232C port on the PLZ-4W is a standard DB9P male connector. Table7-1 RS232C pins Pin No. Function Not used Receive (RX) Transmit (TX) Not used...
  • Page 157 Exit from the menu. Press the MENU (SHIFT+SET/VSET) key. The original screen displayed before entering menu setup appears. 10. Power cycle the PLZ-4W. The settings are confirmed. ■ Transmission/Reception via the RS232C Control the transmission/reception via the RS232C interface using flow control or by using acknowledge messages.

  • Page 158: Usb Control

    7.2.3 USB Control To use the USB, download the KI-VISA software program from Kikusui website (http://www.kikusui.co.jp), and install the software in PC. The software program can only be used on a Windows environment. ■ USB connection Use a standard USB cable to connect the PLZ-4W to the PC.

  • Page 159: Contents Of The Accompanying Cd-Rom

    Contents of the accompanying CD-ROM Insert the accompanying CD-ROM in the drive. After a short time, the menu pro- gram window opens. If the menu program window does not open, browse the CD- ROM with Windows Explorer, and double-click index.html. The menu program will start.

  • Page 160: Installing The Visa Library

    • Agilent VISA by Agilent Technologies (Agilent IO Libraries M01.00 or later) • KI-VISA Ver. 3.0.0 or later Installing KI-VISA KI-VISA is Kikusui's original VISA library that supports VXIplug&play VISA Specifications. The newest version can be downloaded from Download service of Kikusui website (http://www.kikusui.co.jp/en/download/).
  • Page 161 Uncheck Protect my computer and data from unauthorized program activity, and click OK. Uncheck Proceed with the installation according to the instructions on the screen. PLZ-4W Remote Control 7-9...

  • Page 162: Installing The Software Application

    7.3.2 Installing the Software Application Kikusui PLZ Application & Samples includes the following software. Table 7-3 Software VPanel Simple virtual panel Monitor And Log Measures Curr/Volt/Pow, generates logs Step Editor A program/Step editor Memory Copy A memory backup tool for Setup Memories Load the accompanying CD-ROM into the CD-ROM drive.

  • Page 163: Chapter 8 Maintenance And Calibration

    Chapter 8 Maintenance and Calibration This chapter describes how to maintain, inspect, and calibrate the PLZ-4W. PLZ-4W Maintenance and Calibration 8-1...

  • Page 164: Maintenance

    Maintenance Periodic maintenance and inspection are essential to maintain the initial perfor- mance of the PLZ-4W over an extended period. WARNING • Possible electric shock. May lead to death or injury. Be sure to turn off the POWER switch and remove the power cord plug or turn off the switch- board.

  • Page 165: Inspecting The Power Cord

    If the panel settings are different at the time the power is turned off and at the time the power is turned on again, the battery is already dead. To replace the battery, contact your Kikusui agent or distributor. PLZ-4W...

  • Page 166: Confirming Status Of The Fuse

    Confirming status of the fuse To increase security of the product, the fuse are installed on each element of the load device. Those fuses protects from the effect to the connected device at minimum level causing by the failure or incorrect use of the product. If the setting current is not flowing properly, the fuse may have blown off.

  • Page 167: Calibration

    Calibration The PLZ-4W is shipped from the factory after carrying out a strict calibration. How- ever, to maintain the performance, periodic calibration is recommended. 8.3.1 Calibration Overview The calibrated items are current and voltage. The current is calibrated with respect to the current ranges (3 ranges: L, M, and H). The voltage is calibrated with respect to the voltage ranges (2 ranges: 15 V and 150 V).

  • Page 168: Preparation

    Regulated DC power supply Voltage: 155 V – (constant current power supply) Current: 0.3 A *1:PLZ164W/PLZ164WA, *2:PLZ334W, *3:PLZ664W, *4:PLZ1004W Connect the cables as shown in Fig. 8-5. Select the shunt resistor according to the calibration item. Voltmeter (DVM) Regulated DC...

  • Page 169: Calibration Procedure

    8.3.3 Calibration Procedure Entering the calibration screen and selecting Calibration Press the MENU (SHIFT+SET/VSET) key. The menu screen is displayed. Use the CURSOR key to select 3. Calibration. 3. Calibration is highlighted. Press the ENTER key. The Calibration screen appears. Calibration 2.
  • Page 170 CC mode calibration (calibration number 1, 2, and 3) Carry out calibration on the low range items first according to steps A to D. Then, carry out calibrations for Mid range and High range. Table 8-2 Overview of the procedure Calibration item Percentage with Internal reference...
  • Page 171 CC(Low) Displays the current Offset Adjustment calibration value (hexadecimal) first. DAC REF : 0x0001 Cursor MON : 0x0001 PREV NEXT Indicates hexadecimal. Fig. 8-7 CC (Low) Offset Adjustment screen Press the CURSOR key to select DAC REF, and turn the rotary knob.
  • Page 172 “3. CC (High”) by carrying out a similar procedure. Step 16 completes the CC mode calibration. Table 8-3 CC mode settings Current to be matched Calibration number Output setting of PLZ164W and item the power supply PLZ334W PLZ664WA PLZ1004W PLZ164WA...
  • Page 173 CV mode calibration (calibration number 4 and 5) Carry out calibration on the 15-V range items first according to steps E to H. Then, carry out calibration on the 150-V range items. The shunt resistor is not used, but you can leave it connected. Table 8-4 Overview of the procedure Calibration item...
  • Page 174 Press the CURSOR key to select DAC REF, and turn the rotary knob. Monitor the input voltage on an external voltmeter, and set the input voltage within 0.05 % of the value corresponding to 10 % of the range full scale. MON is automatically set as the offset of the measured value.
  • Page 175 ■ High range calibration 13. Return to number 1 of step E and calibrate the High range (calibration number “5. CV 150V”) by carrying out a similar procedure. Set the volt- age of the power supply to 155 V or greater. Step 12 completes the CV mode calibration.

  • Page 176: Malfunctions And Causes

    If you find an item that corresponds to your case, follow the remedy for the item. If the remedy does not solve the problem or if your case does not match any of the items, contact your Kikusui agent. Symptom 1: Nothing appears on the display when the POWER switch is turned on.
  • Page 177 Symptom 4: Input current is unstable or oscillates. Check Item Possible Cause Remedy Location and Status of the Object Check Result Use the PLZ-4W in the input Low supply voltage supply voltage range. Is rated voltage applied for the input power supply (AC)? Immediately stop the use of the Malfunction instrument and request repairs.
  • Page 178 Symptom 7: The transmission/reception does not work when you communicate using the program previously used. Check Item Remedy Location and Status of the Object Check Result There is a case that your program targeted at PLZ-4W ROM version 1.17 or earlier may not work correctly with ROM version 1.18 or later.

  • Page 179: Chapter 9 Specifications

    Chapter 9 Specifications This chapter lists the electrical and mechanical specifications of the PLZ-4W. PLZ-4W Specifications 9-1...

  • Page 180: Electrical Specifications

    ** % of f.s denotes ** % of the rated input voltage, rated input current, or rated input power. • ** % of rdg represents denotes ** % of the input voltage, input current, or input power reading. Rating Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Operating voltage (DC) 1.5 V – 150 V 0 V –...
  • Page 181 CR mode Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Range 22 S 44 S 133.332 S 22 S 88 S Operating range – 400 S – 800 S – 400 S – 2.4 mS – 1.6 mS (45.455 m (22.727 m...
  • Page 182 CP mode Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Operating range Range 16.5 W – 165 W 33 W – 330 W 100 W – 1 000 W 16.5 W – 165 W 66 W – 660 W 1.65 W – 16.5 W 3.3 W –...
  • Page 183 Switching mode Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Operation mode CC and CR Duty cycle setting 5 % – 95 % , 0.1 % step Selectable frequency range 1 Hz – 20 kHz Frequency 1 Hz – 10 Hz 0.1 Hz resolution 10 Hz –...
  • Page 184 Remote sensing Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Voltage that can be 2 V for a single line compensated Protection function Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Overvoltage protection (OVP) Turns off the load at 110 % of the rated voltage Overcurrent protection (OCP) 0.03 A –...

  • Page 185: Common Specifications

    Common specifications Analog external control (J1 connector) Load on/off control input Turn on the load with low (or high) TTL level signal Load on status output On when the load is on (open collector output by a photocoupler) Range switch input Switch ranges L, M, and H using a 2-bit signal Range status output Outputs range L, M, or H using 2-bit signal (open collector output by a photocoupler)

  • Page 186: General Specifications

    General Specifications Model PLZ164W PLZ334W PLZ1004W PLZ164WA PLZ664WA Input voltage range 100 VAC – 240 VAC 100 VAC – 120 VAC /200 VAC – 240 VAC (90 VAC – 250 VAC) (90 VAC – 132 VAC/180 VAC – 250 VAC)
  • Page 187 *5. This is a Class I equipment. Be sure to ground this product's protective conductor terminal. The safety of this product is only guaranteed when the product is properly grounded. *6. Pollution is addition of foreign matter (solid, liquid or gaseous) that may produce a reduction of dielectric strength or surface resistivity.

  • Page 188: Dimensions

    (Max. depth 5mm(1.97inch)) 70(27.56) 275(108.27) (21.65) MAX470(185.04) 214.5(84.45) MAX30(11.81) 400(157.48) UNIT: mm (inch) Fig.9-1 Outline drawing (PLZ164W, PLZ164WA, and PLZ334W) 4-φ5(1.97) 4-φ30 4-M3 screw holes (Mounting holes (Feet diameter) for feet) (Max. depth 5mm(1.97inch)) 275(108.27) (28.74) (20.47) MAX470(185.04) MAX455(179.13)

  • Page 189: Appendix

    For the operating areas of each individual model, see appendix A.3, “Operating Area of Each Model.” Operating area where specifications are guaranteed Actual operating area PLZ164W Operating area where (1.5 V input specifications are guaranteed type) H range Actual operating area...

  • Page 190: Basic Operation Modes

    Basic Operation Modes The following six operation modes are available on the PLZ-4W. Constant current mode (CC mode) Constant resistance mode (CR mode) Constant power mode (CP mode) Constant voltage mode (CV mode) Constant current and constant voltage mode (CC+CV mode) Constant resistance and constant voltage mode (CR+CV mode) A.2.1 Operation of the CC Mode...
  • Page 191 Operating area Constant power line OPP trip point (OPP setting) Logarithmic Input current [A] scale Fig. A-3 Transition of the operating point in CC mode (OPP trip point) Fig. A-3: Operation on segment AB If the voltage of the constant-voltage power supply is set to V1 and the input current (load current) of the PLZ-4W is increased, the operating point moves along segment When point B is reached, overpower protection (OPP) trips.

  • Page 192: Operation Of The Cr Mode

    A.2.2 Operation of the CR Mode In CR mode, the PLZ-4W sinks current proportional to the voltage variation. ■ CR mode operation When the PLZ-4W is used in CR mode, the PLZ-4W operates as a resistive load as shown in Fig. A-4. When the voltage (V1) of the constant-voltage power supply var- ies, the PLZ-4W sinks current to maintain I = V/R, with the specified resistance R fixed.
  • Page 193 If protection action is set to LIMIT, the PLZ-4W sinks current as a constant power load at point B. Even if you attempt to increase the input current by decreasing the resistance, the current is limited at point B. If you decrease the input current by increasing the resistance, the OPP is cleared.

  • Page 194: Operation Of The Cp Mode

    A.2.3 Operation of the CP Mode In CP mode, the PLZ-4W sinks current so that the power consumed inside the elec- tonic load is constant. ■ CP mode operation When the PLZ-4W is used in CP mode, the PLZ-4W operates as a constant power load as shown in Fig.
  • Page 195 Fig. A-8: Operation on segment AB If the voltage of the constant-voltage power supply is set to V1 and the power of the P P PLZ-4W is increased (P ), the operating point moves along segment AB A B). When point B is reached, overcurrent protection (OCP) trips. At this point, two types of operation are available on the PLZ-4W depending on the protection action setting of the OCP.

  • Page 196: Operation Of The Cv Mode

    A.2.4 Operation of the CV Mode In CV mode, the PLZ-4W sinks current so that the voltage at the load input end of the PLZ-4W is constant. ■ CV mode operation When the PLZ-4W is used in CV mode, the PLZ-4W operates as a constant voltage load (shunt regulator) as shown in Fig.
  • Page 197 When point N is reached, overpower protection (OPP) trips. At this point, two types of oper- ation are available on the PLZ-4W depending on the protection action setting of the OPP. If Protect Action is set to LOAD OFF, the load is turned off. If protection action is set to LIMIT, the PLZ-4W sinks current as a constant power load at point N.

  • Page 198: Operation Of The Cc+Cv Mode

    A.2.5 Operation of the CC+CV Mode The PLZ-4W allows you to add CV mode to CC mode. ■ CC+CV mode operation When the PLZ-4W is used in CC+CV mode, the PLZ-4W operates as a constant current load and a constant voltage load (shunt regulator) as shown in Fig. A-12. When operating as a constant current load, the PLZ-4W sinks the specified current (I) independent of the output voltage of the constant-voltage power supply (V When operating as a constant voltage load and V...
  • Page 199 We denote the voltage of the battery as V . In CC mode, if the current is increased I I ) to increase the input current (load current), the operating point M N). moves along segment MN (M When the overpower protection (OPP) setting is P , the OPP trips when point N is reached.

  • Page 200: Operation Of The Cr+Cv Mode

    A.2.6 Operation of the CR+CV Mode The PLZ-4W allows you to add CV mode to CR mode. ■ CR+CV mode operation When the PLZ-4W is used in CR+CV mode, the PLZ-4W operates as a constant resistance load and a constant voltage load (shunt regulator) as shown in Fig. A-14. When operating as a constant resistance load and the voltage (V ) of the constant- voltage power supply is varied, the PLZ-4W sinks current to meet I=V/R according...
  • Page 201 We assume that the overcurrent protection (OCP) setting I is greater than current at point N and denote the voltage of the battery as V . In CR mode, if the resis- R R tance is decreased (R ) to increase the input current (load current), the M N).
  • Page 202 We assume that the overcurrent protection (OCP) setting I is less than the cur- rent produced by the tripping of the overpower protection (OPP) and denote the voltage of the battery as V . In CR mode, if the resistance is decreased R R ) to increase the input current (load current), the operating point...

  • Page 203: Operating Area Of Each Model

    Operating Area of Each Model A.3.1 Operating Area of the PLZ164W Operating area where specifications are guaranteed Actual operating area PLZ164W Operating area where (1.5 V input specifications are guaranteed type) H range Actual operating area Low voltage area Input current [A]...
  • Page 204 A.3.2 Operating Area of the PLZ334W Operating area where specifications are guaranteed Actual operating area PLZ334W Operating area where (1.5 V input specifications are guaranteed type) H range Actual operating area Low voltage area Input current [A] Input current [A] Operating area where specifications are guaranteed PLZ334W...
  • Page 205 A.3.3 Operating Area of the PLZ1004W Operating area where specifications are guaranteed Actual operating area PLZ1004W (1.5 V input Operating area where type) specifications are guaranteed H range Actual operating area Low voltage area Input current [A] Input current [A] Operating area where specifications are guaranteed Actual operating area...
  • Page 206 A.3.4 Operating Area of the PLZ164WA PLZ164WA (0 V input type) Operating area where H range specifications are guaranteed Input current [A] PLZ164WA (0 V input type) Operating area where specifications are guaranteed M range 0.11 0.01 Input current [A] PLZ164WA (0 V input type) Operating area where...
  • Page 207 A.3.5 Operating Area of the PLZ664WA PLZ664WA (0 V input type) Operating area where H range specifications are guaranteed Input current [A] PLZ664WA (0 V input type) Operating area where M range specifications are guaranteed 13.2 Input current [A] PLZ664WA (0 V input type) Operating area where L range...
  • Page 208 Sequence Program Creation Table For normal sequence Program name: Date: Program number (1 to 10) Memo (Up to 11 characters) Operation mode CC, CR, CV, CP Range (A) -- Current (A) -- Voltage (V) Loop (1 to 9999) Last Load (OFF/ON) OFF, ON Last Set Chain (OFF, 1 to 10)
  • Page 209 Entry example Program name: Example sequence of chapter 6: PLZ164W Date: Program number (1 to 10) Memo Program1 (Up to 11 characters) Operation mode Range 33 (A) -- 150 (V) Current (A) -- Voltage (V) Loop (1 to 9999) 0001...
  • Page 210 A-22 Appendix PLZ-4W...
  • Page 211 Index Symbols CC mode 3-7 5-10 CC mode calibration 8-8 % key 4-10 CC+CV mode 3-7 5-11 A-10 +CV key 4-7 +CV mode 5-10 5-13 ǃ +S end 6-38 chain 6-15 Numerics ÇÎ 0 V input type 1-4 Class I equipment 2-6 1.5 V input type 3-6 closed circuit voltage 6-13 ÇÕ...
  • Page 212 cut off time 6-13 cutoff voltage 6-13 h.min.s.ms 6-16 CV mode 3-7 5-16 handle 4-3 CV mode calibration 8-11 IMON OUT connector 4-3 DATA1 6-28 initial drift 8-6 DATA2 6-28 initialization 5-28 DC INPUT 4-3 input voltage range 2-5 default settings 5-28 inrush current 9-8 dimensions 9-10 installation location 2-3...
  • Page 213 louver 4-3 overvoltage 2-13 louver, removal of 8-2 overvoltage category II 2-5 overvoltage protection 5-6 OVP 5-6 M1,2,3,4,5,6,7,8 6-30 malfunctions and causes 8-14 master/slave 5-27 panel control basics 5-2 measured value display 4-12 parallel operation using load boosters 6-62 6-65 memo 6-15 parallel operation using the same model 6-62 memory 5-27...
  • Page 214 response speed 5-29 TIME BASE 6-27 REV 5-7 time measurement 6-13 reverse connection protection 5-7 TRIG 6-16 ROM version 1-2 TRIG (trigger output) 6-17 rotary knob 4-6 TRIG OUT connector 4-3 RPTSTEP 6-27 trigger signal output 6-60 RS-232C connector 4-5 RS-232C control 7-4 RUN/STOP key 4-11 undervoltage protection 5-7...
  • Page 216 KIKUSUI ELECTRONICS CORP. 1-1-3 Higashiyamata, Tsuzuki-ku, Yokohama, 224-0023, Japan Tel: +81-45-593-7570 Fax: +81-45-593-7571 http://www.kikusui.co.jp/en Website...

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