Page 1 SW2001 SW2001-04 SW2001-08 SW2001-16 Instruction Manual SW2001-24 HIGH VOLTAGE MULTIPLEXER Check for the latest edition and other language versions. Read carefully before use. Keep for future reference. When using the instrument for the first Troubleshooting time Safety Information p.11 Maintenance and Service p.144...
Page 2 6.4 Connection 6.5 Timing Charts 6.6 Internal Circuit Configuration 7 Communications Function 7.1 Overview and Features of Interfaces 7.2 Configuring Communication Setting Modes 7.3 LAN Interface 7.4 USB Interface 7.5 Communication Method 7.6 Message Reference 8 Maintenance and Service HIOKI SW2001A971-01...
Page 3 8.3 Self-tests 8.4 Cleaning the Instrument 8.5 Troubleshooting 8.6 Rack Mounting 9 Specifications 9.1 General Specifications 9.2 Basic Specifications 9.3 Specifications of Functions 9.4 Specifications of Interfaces 9.5 Other Specifications 9.6 Options 10 Lecense Infomation 10.1 About Open-source Software HIOKI SW2001A971-01...
Page 4 Introduction 1.1 Introduction Thank you for choosing the Hioki SW2001 High Voltage Multiplexer. Preserve this manual carefully and keep it handy to make full use of this instrument for a long time. The latest edition of the instruction manual The contents of this manual are subject to change, for example as a result of product improvements or changes to specifications.
Page 5 This manual has been written for use by individuals who use the product in question or who teach others to do so. It is assumed that the reader possesses basic electrical knowledge (equivalent to that of someone who graduated from an electrical program at a technical high school). HIOKI SW2001A971-01...
Page 6 If the instrument seems to have been damaged or does not work as specified, contact your authorized Hioki distributor or reseller. Confirm that the package contents are correct. Instrument ☐ SW2001 High Voltage Multiplexer Included accessories ☐ Power cord ☐ Operating Precautions (0990A903) ☐...
Page 7 1.3 Options (Sold Separately) The following options are available for the instrument. To buy, contact your authorized Hioki distributor or reseller. The options are subject to change without prior notice. Visit our website (https://www.hioki.com) for updated information. PD sensor (Options available only at the time of purchase order issuance for the instrument) The instrument is equipped with two types of PD sensors installed.
Page 8 "Operating Precautions". Indicates a terminal that is hazardous due to high voltages. Indicates the on side of the power switch. HIOKI SW2001A971-01...
Page 9 Indicates partial discharge occurring when applying AC high voltage to the object AC PD under measurement. Impulse Indicates the partial discharge generated when impulse voltage is applied to the object under measurement. Other notations Notation Description Indicates useful functions and advice you should know. HIOKI SW2001A971-01...
Page 10 Notation Description Indicates that additional information is described below. POWER Indicates text printed on the instrument. (bold-faced) *TRG Indicates a communications command. HIOKI SW2001A971-01...
Page 11 Protective gear WARNING Insulation measurements, pressure resistance measurements, impulse measurements and PD measurements are performed using a live line. To prevent an electric shock, use appropriate protective insulation and adhere to applicable laws and regulations. HIOKI SW2001A971-01...
Page 12 Observe the following due to the risk of injury. The weight of the instrument is 31.5 kg for the SW2001-24, 27.0 kg for the SW2001-16, 22.5 kg for the SW2001-08 and 20.5 kg for the SW2001-04. When transporting the instrument, have it carried by two or more people by holding the handles on the front and rear.
Page 13 Be especially careful to avoid physical shock due to dropping it. Do not use packaging or cushioning if torn or deformed. If not using packaging and cushioning when shipping the product, contact your authorized Hioki distributor or reseller. Hioki will send specialized packaging and cushioning.
Page 14 Use only the connection cables specified by Hioki when using the instrument. Using a non- specified cable may result in unsafe measurements. Using a non-specified cable may also result in incorrect measurements due to poor connection or other reasons.
Page 15 Do not use the instrument to measure circuits that exceed those ratings or specifications. Damage to the instrument or overheating can cause bodily injury. CAUTION Connect the functional ground terminal to the ground if subject to the impact of noise. HIOKI SW2001A971-01...
Page 16 Also, 4 to 24 channels can be selected as the number of output channels according to the number of channels you wish to connect to the object under measurement. (Available only at the time of purchase order issuance for the instrument) HIOKI SW2001A971-01...
Page 17 When used to construct a motor inspection system, the instrument is designed with sufficient durability for the expected number of uses and without the need for maintenance* . *1. Five million uses have been recorded in operation tests by Hioki. (Reference value) Input and output channel connection methods can be selected as desired Multiple high-voltage and low-voltage measuring instruments can be connected to the instrument.
Page 18 Turns off when a remote release command is received. POWER LED (green) Turns on when the power is activated. Used to avoid the effects of noise when measuring GUARD terminal resistance. terminal (functional Ground this terminal. earth terminal) HIOKI SW2001A971-01...
Page 19 Used to turn the instrument on and off. Enables to control the instrument by inputting external signals, or output EXT. I/O terminal signals externally. EXT. I/O MODE Switches the type of PLC (programmable logic controller) to connect to switch (NPN/PNP) EXT. I/O. HIOKI SW2001A971-01...
Page 20 (last two digits of the year), and the Serial number next digits two indicate the month of manufacture. This label is needed for administrative purposes. Do not remove this label. Inform your authorized Hioki distributor or reseller of this number if required. HIOKI SW2001A971-01...
Page 21 2.4 Dimensions HIOKI SW2001A971-01...
Page 22 The three following methods can be used as control methods. 1. Connect a computer or PLC via LAN or USB to control using communications commands. 2. Control using EXT. I/O from a PLC. 3. Control using a sample application. (See: "Sample Applications") HIOKI SW2001A971-01...
Page 23 "Overview of Switching Channels" When using USB, a hub is not required if the computer has multiple USB ports. Control via EXT. I/O Control by connecting the I/O port of a PLC to the instrument’s EXT. I/O. Connection examples HIOKI SW2001A971-01...
Page 24 L2265 Unterminated Lead Cable (optional, 3 m length) In factory default state, the "object under measurement" side of the unterminated lead cable is disconnected. You must modify the tip of the cable to suit the object under measurement. HIOKI SW2001A971-01...
Page 25 Connection procedure Cut the power to the instrument. Connect the unterminated lead cable connector to the instrument. Align the terminal holes with the unterminated lead cable connector. Insert the unterminated lead cable connector all the way inside. HIOKI SW2001A971-01...
Page 26 This connector rotates 90 degrees or more in both directions. However, turning it 180 degrees is dangerous as it will deactivate the lock. Check to ensure that the unterminated lead cable connector cannot be removed. Connect the unterminated lead cable to the object under measurement. HIOKI SW2001A971-01...
Page 27 Insulation/Withstanding HiTester 3174 L2271 (L side) IMPULSE WINDING TESTER Impulse Winding Tester ST4030A L2255 terminal RESISTANCE METER Resistance Meter RM3545 L2111 terminal LCR Meter IM3533 LCR METER terminal L2005 IMPULSE VOLTAGE, ST4200 output terminals ST4200 L9218 AC PD terminals HIOKI SW2001A971-01...
Page 28 Firmly lock the connection cable connector stoppers and ensure that they will not detach. A connector being pulled out may result in damage to the instrument or exposure to high voltage. Cut the power to the instrument. Loosen the stopper plate screws. HIOKI SW2001A971-01...
Page 29 Slide the stopper plate upward. Align the terminals with the connection cable connectors, and fully insert them. HIOKI SW2001A971-01...
Page 30 Tighten the stopper plate. Check to ensure that the connection cable connectors cannot be removed. How to remove connection cables Turn off the instrument, and remove the cables in the reverse order of the above procedure. HIOKI SW2001A971-01...
Page 31 Cut the power to the instrument. Insert the connection cable connector all the way into the instrument and confirm that it is locked. Push it in until there is a locking sound. Check to ensure that the connection cable connectors cannot be removed. HIOKI SW2001A971-01...
Page 32 Connect the other end of the connection cable to the impulse winding tester. How to remove connection cables Turn off the instrument, and pull the connection cable straight out by holding the locking mechanism of the connector. The lock will disengage, enabling the cable to be removed. HIOKI SW2001A971-01...
Page 33 RESISTANCE METER terminals of the instrument. The terminals are the same for L2111 connector. Align the direction of the connection cable connector so that the ▼ mark on the instrument matches the ▲ mark on the connection cable. HIOKI SW2001A971-01...
Page 34 The rear GUARD terminal is short-circuited with the front GUARD terminal through the interior of the instrument. To use the GUARD function, such as for avoiding the impact of disturbance noise in resistance measurement, use the front GUARD terminal. HIOKI SW2001A971-01...
Page 35 To reduce the impact of noise, connect the GUARD terminal of the LCR meter and the functional ground terminal of the SW2001 with a cable with a length of 3 m or less. (Recommended: 1.5 m) CAUTION...
Page 36 Insert the BNC terminals to the instrument connectors, rotate the lock rings 90 degrees clockwise, and firmly lock them. Instrument terminal Cable name SOURCE-L SENSE-L SENSE-H SOURCE-H Connect the other connection cable to the LCR meter. HIOKI SW2001A971-01...
Page 37 Connection Cable. Connect the instrument’s AC VOLTAGE terminal to the AC VOLTAGE terminal on the right side of the ST4200 using L9218 Connection Cable. Connect the metal connectors to the SW2001 and the plastic connectors (black) to the ST4200. HIOKI SW2001A971-01...
Page 38 Measuring Impulse PD Connect the instrument’s IMPULSE PD terminal to the IMPULSE PD terminal on the right side of the ST4200 using L9218 Connection Cable. Connect the metal connectors to the SW2001 and the plastic connectors (black) to the ST4200. HIOKI SW2001A971-01...
Page 39 Communication via USB is possible regardless of the communication setting mode. How to configure Check that the POWER switch is set to OFF ( Switch the communication setting mode with the communication setting mode switch. See: "Configuring Communication Setting Modes" HIOKI SW2001A971-01...
Page 40 (UPS or uninterruptible power supply, DC/AC inverter). Doing so may damage the instrument. Before turning the instrument on, make sure the supply voltage matches that indicated on its power connector. Connection to an improper supply voltage may damage the instrument and present an electrical hazard. HIOKI SW2001A971-01...
Page 41 Check that the POWER switch is set to OFF ( Confirm that the power supply voltage is within the voltage range stated on the rear of the instrument, and connect the power cord to the power inlet. Connect the power cord plug to an outlet. HIOKI SW2001A971-01...
Page 42 LED on the front lights up when the power is turned on, and a self-test is executed. When an error occurs during a self-test, the front ERROR LED lights up or flashes. See: "When the ERROR LED lights up or flashes" HIOKI SW2001A971-01...
Page 43 Channel delay setting Retains setting recorded by backup command Protective discharge setting Retains setting recorded by backup command Speed discharge setting Retains setting recorded by backup command Communication setting Retains setting recorded by backup command See: "Default Settings" HIOKI SW2001A971-01...
Page 44 Check that the insulation of the connection cords is neither ripped nor torn and that no metal parts are exposed. Replace the connection cords with those specified by Hioki. Check if there is any damage to the instrument occurred during storage or shipping and verify that it operates normally before using the instrument.
Page 45 The instrument is entirely controlled by communications commands. See the explanation for each item for the specific commands. Channels not marked with ' indicate SOURCE and those marked with ' indicate SENSE. Only one input channel can be selected. This prevents simultaneous connections to multiple measuring instruments. HIOKI SW2001A971-01...
Page 46 Also, if CH1 through CH8 are set as input channels, those channels cannot be set to HIGH or LOW. Item Communications command How to configure :RELay:CH <ch>,{OFF|HIGH|LOW} :RELay:CH 1,HIGH Sets output channel 1 to HIGH Example setting :RELay:CH 2,LOW Sets output channel 2 to LOW HIOKI SW2001A971-01...
Page 47 :RELay OPEN completed. Even if closing is executed and then opened, the input channel, output channel, and AC PD relay settings are retained until a setting command is received again, and remain enabled when the next closing is executed. HIOKI SW2001A971-01...
Page 48 After the channel relay is closed, once the automatically set settling time and the channel delay time designated by the user have elapsed, the channel switching operation is completed and the EXT. I/O SWITCHED output signal turns ON. (Pulse output using set pulse width) HIOKI SW2001A971-01...
Page 49 Wire these cables in a manner that minimizes contact with other cables and any surrounding metal (including the main unit housing). Fix the wiring to enable stable measurement to be maintained. (Use non-metallic plastic material for fixing.) HIOKI SW2001A971-01...
Page 50 The necessary delay time varies depending on the instrument used and the object under measurement. Example of setting channel delay time Communications command Item Communications command (Unit: ms) How to configure :IO:DELay <0 to 9999> :IO:DELay 100 Example setting Sets channel delay to 100 ms. HIOKI SW2001A971-01...
Page 51 Communications command (designated with panel number) or (designated Execution *SAV <1~1000> *SAV "Name" method with panel name) *SAV 4 Execution Saves settings to panel number 4. example *SAV "MODEL A" Saves settings to the panel name "MODEL A" HIOKI SW2001A971-01...
Page 52 This sets the name of the panel with the designated number. Item Communications command (Name is up to eight characters) Execution method :PANel:NAME <1~1000> "Name" :PANel:NAME 4 "MODEL A" Execution example Sets the name of panel number 4 to "MODEL A" HIOKI SW2001A971-01...
Page 53 "MODEL A" Panel number query This acquires the panel number for the designated name. Item Communications command :PANel:NO? "Name" Execution method Response (If there is no panel with the designated name: 0) <0～1000> :PANel:NO? "MODEL A" Execution example Response HIOKI SW2001A971-01...
Page 54 Protective discharge is performed in channels set to output each time closing of relay switches is executed. The maximum voltage that can be discharged with the protective discharge function is 100 V. Use it with the discharge function of each measuring instrument when performing withstanding measurement or insulation resistance measurement. HIOKI SW2001A971-01...
Page 55 The discharge model is treated as a transient phenomenon in a series RC circuit. A capacitor charged to V [V] is discharged with a resistor R [Ω] , and the time t [s] until it reaches V [V] is shown with the following equation. t = R ⋅ C ⋅ log HIOKI SW2001A971-01...
Page 56 R = 1500V /1A = 1500Ω Resistance value： P = 1500V × 1A = 1500W Required power： 1500 W resistance is very large, but the discharge current is instantaneous, and a resistor able to calculate the average power is used. HIOKI SW2001A971-01...
Page 57 Select the discharge resistor based not only on the above calculation, but also after measuring under actual usage conditions. Connecting the discharge resistor Connect the discharge resistor selected above to two unused channels. HIOKI SW2001A971-01...
Page 58 When this command is executed, the set channel turns ON for the set time. Once the speed discharge channel and discharge time have been set, they are enabled until set again. Speed discharge is executed each time the command is sent. :DISCharge:STARt HIOKI SW2001A971-01...
Page 59 Closing relays via the TRIG terminal Speed discharge via the DISCHARGE_TRIG terminal Closing and opening relays via the *TRG and :RELay {CLOSE|OPEN} commands Speed discharge via the :DISCharge:STARt terminal Reference: "External Control Connection" HIOKI SW2001A971-01...
Page 60 Example of connected circuit Connect a signal indicating high voltage is being generated (H.V.ON for Model 3153, etc.), and connect the close lock terminal generating high voltage to COM. HIOKI SW2001A971-01...
Page 61 If this pin is connected to a common terminal, the interlock is disengaged, and relay operations become possible. If this pin is left open, the instrument enters an interlock state, and all relays are immediately opened. Furthermore, relay operation commands are not accepted until the interlock is disengaged. Reference: "External Control Connection" HIOKI SW2001A971-01...
Page 62 Install a switch on the opening of the box and link it to the interlock function. The interlock engages when the lid of the box is opened and disengages to enable measurement when closed. HIOKI SW2001A971-01...
Page 63 5.6 Sample Application A sample application enabling configuration and control of the instrument using a computer is available. The latest version of the sample application can be downloaded from Hioki’s website. SW2001 sample application download HIOKI SW2001A971-01...
Page 64 Wires becoming detached and touching other conductive parts during operation is dangerous. Firmly affix the connection to the connector with a screw. Appropriately isolate the devices and systems to be connected to the EXT. I/O terminals from one another. HIOKI SW2001A971-01...
Page 65 Check the input and output specifications of the equipment to be connected. Check the input and output specifications in the instruction manuals of equipment to be connected to the instrument. Main check items Current sync (NPN) / current source (PNP) Voltage level Current capacity HIOKI SW2001A971-01...
Page 66 EXT. I/O MODE switch and status of EXT. I/O terminals Location Instrument input circuit Support for sync output Support for source output Instrument output circuit Non-polarized Non-polarized ISO_5V output +5 V output ‒5 V output EXT. I/O MODE switch appearance HIOKI SW2001A971-01...
Page 67 Do not input voltage or current more than rated to the EXT. I/O connector. When using relays, be sure to attach a diode for absorbing back electromotive force. Do not short-circuit ISO_5V and ISO_COM. Instrument connectors and compatible connector HIOKI SW2001A971-01...
Page 68 The connector accompanying the instrument is as follows. D-SUB 50 pin, male If you require additional connectors, inquire with your authorized Hioki distributor or reseller. The connector frame is connected to the metal part of the instrument and also connected to (conducting) the protective ground terminal of the power supply inlet.
Page 69 POLE_06(18) Level (CH18)* Output polarity HIGH/LOW CH7 POLE_07(19) Level (CH19)* Output polarity HIGH/LOW CH8 POLE_08(20) Level (CH20)* Output polarity HIGH/LOW CH9 POLE_09(21) Level (CH21)* Output polarity HIGH/LOW CH10 POLE_10(22) Level (CH22)* Output polarity HIGH/LOW CH11 POLE_11(23) Level (CH23)* HIOKI SW2001A971-01...
Page 70 DISCHARGE_TRIG Trigger for executing speed discharge Edge Retains settings for CH13 to 24 DISCHARGE_13TO24 Edge speed discharge channels INTER_LOCK Interlock Level CLOSE_LOCK Close lock Level ISO_COM ― Common ― ― Not assigned ― ― Not assigned ― HIOKI SW2001A971-01...
Page 71 :IO:PULSe:TIME <t>. The default value for the channel delay is 0 ms and the default value for the pulse width is 5 ms. HIOKI SW2001A971-01...
Page 72 When switching, all relays are opened before performing the switching for each relay. LATCH_13TO24 This is an input pin for performing settings for output channels from CH13 for SW2001-16 and SW2001-24. It sets relays to close the state of CH13 through CH24 indicated in the parentheses of the POLE and OUTPUT pins when this input pin turns on.
Page 73 DISCHARGE_13TO24 This is an input pin for performing settings for speed discharge channels from CH13 for SW2001-16 and SW2001-24. It sets the scope of switching when performing speed discharge on CH13 through CH24 indicated in parentheses for the POLE and OUTPUT pins when this input pin turns on.
Page 74 With the current source (PNP) setting, the HIGH and LOW in the timing chart are the same as the voltage levels of the EXT. I/O terminals. The voltage levels in the current sync (NPN) setting are reversed for HIGH and LOW. Channel switching operations Timing chart for switching CH1 through CH12 (PNP) HIOKI SW2001A971-01...
Page 75 Timing chart for switching CH1 through CH24 (only SW2001-16 and SW2001-24) (PNP) Timing chart for performing speed discharge on CH1 through CH12 (PNP) HIOKI SW2001A971-01...
Page 76 Timing charts for performing speed discharge on CH1 through CH24 (only SW2001-16 and SW2001-24) (PNP) HIOKI SW2001A971-01...
Page 77 6.6 Internal Circuit Configuration Circuit diagram When the EXT. I/O MODE switch is set to NPN HIOKI SW2001A971-01...
Page 78 When the EXT. I/O MODE switch is set to PNP Use ISO_COM for the common terminals of both the input signal and output signal. HIOKI SW2001A971-01...
Page 79 Connection Examples Example of connecting input circuit HIOKI SW2001A971-01...
Page 80 Example of connecting output circuit HIOKI SW2001A971-01...
Page 81 Failure to do so could result in an equipment malfunction or damage to the equipment. After connecting the communication cable, tighten the screws on the connector securely. Failure to securely connect the connector could result in a malfunction or damage. HIOKI SW2001A971-01...
Page 82 ・ Communications command port number: 23 Communicates with communication settings set by the user. User setting mode (USER) "Setting communication conditions" to perform communication settings. Communication via USB is possible regardless of the position of the switch on the rear. HIOKI SW2001A971-01...
Page 83 Setting the instrument’s communication conditions Connecting the LAN cable Setting communication conditions Confirm before configuring settings Instrument and external equipment settings will differ when connecting to an existing network and when forming a new network with the instrument and a single computer. HIOKI SW2001A971-01...
Page 84 The following settings are recommended in cases where there is no administrator or cases where discretion is given for settings. Example setting Set IP addresses with sequential numbers as follows. Computer: 192.168.0.1 First instrument: 192.168.0.2 Second instrument: 192.168.0.3 Third instrument: 192.168.0.4 ↓ Subnet mask: 255.255.255.0 Gateway: OFF (0.0.0.0) Communications command port number: 23 HIOKI SW2001A971-01...
Page 85 This designates the TCP/IP port number used for command port LAN:CONTrol connecting. number <1~9999> :SYSTem:COMMunicate: This updates and reflects LAN settings. LAN:UPDate If the communication setting mode switch is set to DFLT, default settings are used without using these settings. See: "Configuring Communication Setting Modes" HIOKI SW2001A971-01...
Page 86 100BASE-TX or 10BASE-T LAN cable (both straight cables and crossover cables can be used) If the green LED does not light up even when connected to the LAN, this could be a malfunction of the instrument or connected device, or a break in the LAN cable. HIOKI SW2001A971-01...
Page 87 A device driver is not required when connecting the instrument’s USB interface to a computer. The instrument will be automatically recognized when connected to a computer via USB cable. Connecting the USB cable Carefully read the warnings in "Overview of External Control" in advance. Recommended cable: L1002 USB cable (A-B) HIOKI SW2001A971-01...
Page 88 Commands for controlling instruments such as for configuring and resetting instruments Format [Header part] [Data part] Insert a space between the header part and the data part. Example: Command for setting LCR to the input channel :RELay:INPut LCR HIOKI SW2001A971-01...
Page 89 Expression in this document OK (long form) :RELAY:INPUT HIPOT :REL:INP HIP OK (short form) Causes a command error. :REL:INP HIPO :REL:INP HI Causes a command error. Response messages from the instrument are returned in the long form in upper case. HIOKI SW2001A971-01...
Page 90 (?) is placed after the program header. Example: :RELay:INPut? *IDN? Message terminators (delimiters) The instrument accepts the following as message terminators. CR, LF, CR+LF The terminator for response messages is fixed as CR+LF. HIOKI SW2001A971-01...
Page 91 Text data is accepted in both upper case and lower case, but responses from the instrument are always returned in upper case. There is a long form and a short form in the same way as command syntax, and both are accepted. Example: :RELay:INPut IMPulse HIOKI SW2001A971-01...
Page 92 It is not necessary to place a colon (:) at the start of simple command type headers and compound command type headers. However, we recommend placing a colon (:) at the start of the command to prevent confusion with abbreviated form and malfunctions. HIOKI SW2001A971-01...
Page 93 When there is no free buffer space, operations are suspended until the space can be used. However, they are executed when an command is received. :ABORT Status system The instrument’s status system uses the status model specified by IEEE 488.2 as a reference. HIOKI SW2001A971-01...
Page 94 Set to "1" when there is error information. It is cleared when error information Bit 2 ― is output by However, it is not cleared when there is an :SYSTem:ERRor? instrument anomaly error. Bit 1 ― Not used Bit 0 ― Not used HIOKI SW2001A971-01...
Page 95 Status Byte Register (STB) to be set to "1" when any of them change from "0" to "1". When all bits are set to "0", the MSS bit will be set to "0". Unused bits of the Status Byte Register (STB) and Bit 6 are set to "0". HIOKI SW2001A971-01...
Page 96 When data is lost within the output queue Bit 1 (RQC) Not used Operation complete Set to "1" when an operation is completed. Bit 0 When the command is executed *OPC When operations of all messages before the command are ended. *OPC HIOKI SW2001A971-01...
Page 97 Register (STB) to be set to "1" when any of them change from "0" to "1". When all bits are set to "0", the ESB bit will be set to "0". Query and set registers Register Query Setting Status Byte Register ― *STB? Service Request Enable Register *SRE? *SRE Standard Event Status Register ― *ESR? Standard Event Status Enable Register *ESE? *ESE HIOKI SW2001A971-01...
Page 98 Event register ― ✓ Enable register ― ― ✓ Current path ― ― ✓: Returns to default state, ―: Does not return to default state *1: Bits other than MAV are cleared. *2: Excludes the PON bit (Bit 7). HIOKI SW2001A971-01...
Page 99 <Manufacturer name>, <Model name>, <Serial number>, <Version> Details Queries the text string identifying the instrument. Manufacturer name: HIOKI Model name: SW2001-24 (the last two digits return the number of channels) Serial number: Returns the serial number. Version: Returns the firmware version number. Example *IDN? HIOKI,SW2001-24,230612345,V1.00...
Page 100 Initialize instrument *RST Syntax Command *RST Details Sets the instrument to defaults. However, communication settings and contents saved in panels are not changed. The initialization content is the same as for the :PRESet command. See: "Default Settings" Example *RST HIOKI SW2001A971-01...
Page 101 Result {PASS|FAIL} Details Performs a self-test of the instrument and returns the result. Returns PASS if the test is passed. Repairs are required if FAIL is returned. Contact your authorized Hioki distributor or reseller. Example *TST? PASS No problems found as a result of executing the test.
Page 102 Can also be closed with the :RELay CLOSe command. Example *TRG Executes closing of relays Note Configure the input channels and output channels before executing this command. Usage Conditions Must not be in interlock state. Must not be in close lock state. HIOKI SW2001A971-01...
Page 103 In the case of a query, "1" is returned when the current operation is completed. Subsequent commands are not executed until completed, but the command is accepted. :ABORt Example *OPC *ESR? *OPC? The immediately preceding operation must be completed. HIOKI SW2001A971-01...
Page 104 Subsequent commands are not executed until completed, but the command is accepted. :ABORt In contrast to *OPC, the OPC bit of the Standard Event Status Register (SESR) is not set to "1". The rest is the same as *OPC. Example *WAI HIOKI SW2001A971-01...
Page 105 Clear event register and Status Byte Register *CLS Syntax Command *CLS Details Clears the event status register. It also clears the bit of the Status Byte Register corresponding to the event register. Errors are also cleared. Example *CLS Clears each register. HIOKI SW2001A971-01...
Page 106 If the OPC bit of the Standard Event Status Enable Register (SESER) is set to "1", the ESB bit of the Status Byte Register (STB) is set to "1". *ESE? The OPC bit of the Standard Event Status Enable Register (SESER) is set to "1". HIOKI SW2001A971-01...
Page 107 Queries the Standard Event Status Register (SESR) value. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Example *OPC *ESR? The OPC bit of the Standard Event Status Register (SESR) is set to "1" by *OPC. HIOKI SW2001A971-01...
Page 108 Example Command *SRE 4 The MSS bit of the Status Byte Register (STB) is set to "1" when a system error occurs. Query *SRE? The ERR bit of the Service Request Enable Register (SRER) is set to "1". HIOKI SW2001A971-01...
Page 109 Queries the Status Byte Register (STB) value. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Example *STB? The ERR bit of the Status Byte Register (STB) is set to "1". HIOKI SW2001A971-01...
Page 110 If a panel number that is already saved or a panel name with the same name is specified, it is overwritten with the current conditions. Example *SAV 1 Saves the current relay switching conditions to panel number 1. :SYSTem:PANel:SAVE "TEST-A" Saves the current relay switching conditions to the panel named "TEST-A". HIOKI SW2001A971-01...
Page 111 An execution error occurs if a number or panel name without saved relay switching conditions is specified. Example *RCL 1 Loads the relay switching conditions saved in panel number 1. :SYSTem:PANel:LOAD "TEST-A" Loads the relay switching conditions saved in panel name "TEST- A". HIOKI SW2001A971-01...
Page 112 An execution error does not occur even if a number or panel name without saved relay switching conditions is specified. Example :SYSTem:PANel:CLEar 1 Clears the relay switching conditions saved in panel number 1. :SYSTem:PANel:CLEar "TEST-A" Clears the relay switching conditions saved in panel name "TEST- A". HIOKI SW2001A971-01...
Page 113 Gives a panel name to the panel with the specified panel number. Example :SYSTem:PANel:NAME 1,"TEST-A" Gives the panel name "TEST-A" to the panel with panel number 1. Usage Conditions An execution error occurs if a panel number without saved relay switching conditions is specified. HIOKI SW2001A971-01...
Page 114 NONE is returned if the panel with the specified panel number does not exist. Example :SYSTem:PANel:NAME? 1 "TEST-A" The panel name of panel number 1 is "TEST-A". :SYSTem:PANel:NAME? 1000 NONE The panel for panel number 1000 does not exist. HIOKI SW2001A971-01...
Page 115 Queries the panel number of the panel with the specified panel name. 0 is returned if the panel with the specified panel name does not exist. Example :SYSTem:PANel:NO? "TEST-A" The panel number of the panel with the panel name "TEST-A" is 1. HIOKI SW2001A971-01...
Page 116 Abort operation Abort :ABORt Syntax Command :ABORt Details Aborts all operations and processes being executed. Also opens all relays. Example :ABORt HIOKI SW2001A971-01...
Page 117 Reset :PRESet Syntax Command :PRESet Details Sets the instrument to defaults. However, communication settings and contents saved in panels are not changed. The initialization content is the same as for the command. *RST See: "Default Settings" Example :PRESet HIOKI SW2001A971-01...
Page 118 Reset (full reset) :SYSTem:RESet Syntax Command :SYSTem:RESet Details Sets the instrument to defaults. However, communication settings are not changed. Unlike with :PRESet, the content saved in panels is initialized. See: "Default Settings" Example :SYSTem:RESet HIOKI SW2001A971-01...
Page 119 Also, when a device anomaly error occurs, the ERROR LED on the front of the instrument lights up, and the ERROR terminal of EXT. I/O outputs ON. Example :SYSTem:ERRor? 370,"Self-test failed" The self-test resulted in an error. HIOKI SW2001A971-01...
Page 120 OFF. When set to ON, the current settings are backed up, and subsequent settings are recorded. Example :SYSTem:BACKup OFF Backup of settings turned OFF. :SYSTem:BACKup? Backup of settings is OFF. HIOKI SW2001A971-01...
Page 121 Remote disengagement Remote disengagement :LOCal Syntax Command :LOCal Details Disengages the remote state of communication. When this command is received, the REMOTE LED on the instrument turns off. Example :LOCal Disengaged the remote state. HIOKI SW2001A971-01...
Page 122 IP address may cause trouble on an existing network. Example :SYSTem:COMMunicate:LAN:IPADdress 192,168,1,100 Sets the IP address to 192.168.1.100. :SYSTem:COMMunicate:LAN:IPADdress? 192,168,1,100 The IP address is set to 192.168.1.100. Note Although a periods are normally used as separators in IP addresses, commas are used in this command. HIOKI SW2001A971-01...
Page 123 Using an incorrect subnet mask may cause trouble on an existing network. Example :SYSTem:COMMunicate:LAN:SMASk 255,255,255,0 Sets the subnet mask to 255.255.255.0. :SYSTem:COMMunicate:LAN:SMASk? 255,255,255,0 The subnet mask is set to 255.255.255.0. Note Although a periods are normally used as separators in the subnet mask, commas are used in this command. HIOKI SW2001A971-01...
Page 124 Using an incorrect default gateway may cause trouble on an existing network. Example :SYSTem:COMMunicate:LAN:GATeway 192,168,1,1 Sets the default gateway to 192.168.1.1. :SYSTem:COMMunicate:LAN:GATeway? 192,168,1.1 The default gateway is set to 192.168.1.1. Note Although a periods are normally used as separators in the default gateway, commas are used in this command. HIOKI SW2001A971-01...
Page 125 Port number {1~65535} Specifies the TCP/IP port number for accepting commands via LAN communication. The setting is enabled after executing :SYSTem:COMMunicate:LAN:UPDate. Example :SYSTem:COMMunicate:LAN:CONTrol 23 Specifies the port number as 23. :SYSTem:COMMunicate:LAN:CONTrol? The port number is set to 23. HIOKI SW2001A971-01...
Page 126 This updates and reflects LAN settings. LAN communication connections are disconnected. Example :SYSTem:COMMunicate:LAN:IPADdress 192,168,1,100 :SYSTem:COMMunicate:LAN:SMASk 255,255,255,0 :SYSTem:COMMunicate:LAN:GATeway 0,0,0,0 :SYSTem:COMMunicate:LAN:CONTrol 23 :SYSTem:COMMunicate:LAN:UPDate Sets the LAN IP address to 192.168.1.100, the subnet mask to 255.255.255.0, the default gateway to OFF, and the port number to 23. HIOKI SW2001A971-01...
Page 127 Syntax Query :SYSTem:COMMunicate:LAN:MAC? Response <MAC address> Details Queries the MAC address of the instrument's LAN port. The MAC address is returned as a string in a format such as "00-01-67-00-00-00". Example :SYSTem:COMMunicate:LAN:MAC? "00-01-67-00-00-00" The MAC address is 00-01-67-00-00-00. HIOKI SW2001A971-01...
Page 128 Executes opening of relays. Usage Conditions When closing: ・ Must not be in interlock state. ・ Must not be in close lock state. When opening, must be in SWITCHED state. To open in any state, use the :ABORt HIOKI SW2001A971-01...
Page 129 ・ When closing: ALL_OPEN > CLOSE_START > CH_DELAY > SWITCHED ・ When performing speed discharge: SWITCHED > DISCHARGE > SWITCHED ・ When opening: SWITCHED > OPEN_START > ALL_OPEN Example :RELay:STATus? INTERLOCKED The instrument is currently in an interlock state. HIOKI SW2001A971-01...
Page 130 :RELay CLOSE Sets the input channel to HIPOT, output channel CH1 to HIGH, output channel CH2 to LOW, AC PD relay to ON, and executes closing of relays. :RELay:INPut? HIPOT The input channel is set to the HIPOT channel. HIOKI SW2001A971-01...
Page 131 :RELay:ACPD ON :RELay CLOSE Sets the input channel to HIPOT, output channel CH1 to HIGH, output channel CH2 to LOW, AC PD relay to ON, and executes closing of relays. :RELay:ACPD? AC PD relays are set to ON. HIOKI SW2001A971-01...
Page 132 Sets the input channel to HIPOT, output channel CH1 to HIGH, output channel CH2 to LOW, AC PD relay to ON, and executes closing of relays. :RELay:CH? 1 HIGH The connection setting for output channel 1 is HIGH. HIOKI SW2001A971-01...
Page 133 CH5 to Ch24 to OFF, AC PD relay to OFF, and executes closing of relays. :RELay:CHALL? HIGH,HIGH,HIGH,LOW,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF ,OFF,OFF,OFF,OFF,OFF Output channel connection settings are set to HIGH for output channels CH1, CH2, CH3, LOW for output channel CH4, and OFF for output channels CH5 to CH24. HIOKI SW2001A971-01...
Page 134 Sets or queries the protective discharge time. The protective discharge function is OFF when set to 0. Example :DISCharge:PROTect 500 Sets the protective discharge time to 500 ms. :DISCharge:PROTect? The protective discharge time setting value is 500 ms. HIOKI SW2001A971-01...
Page 135 <Discharge time> Details Discharge time <100~9999> Unit: [ms] (milliseconds) Sets or queries the speed discharge time. Example :DISCharge:SPEed 2000 Sets the speed discharge time to 2000 ms. :DISCharge:SPEed? 2000 The speed discharge time setting value is 2000 ms. HIOKI SW2001A971-01...
Page 136 CH1 to CH8, those channels cannot be :RELay:INPut set to HIGH or LOW for speed discharge. Also, channels set to HIGH or LOW with the output channel setting cannot be set to HIGH or :RELay:CH LOW for speed discharge. HIOKI SW2001A971-01...
Page 137 Relays other than those for the speed discharge channel are kept in the same state from before starting. Example :DISCharge:STARt Executes speed discharge. Usage Conditions Must be in a SWITCHED state. Must not be in close lock state. HIOKI SW2001A971-01...
Page 138 LSRC: SOURCE LOW LSEN: SENSE LOW Example :COUNt:CH? HSRC 15443,15443,15443,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 Switch counts for the SOURCE HIGH output channel relays are CH1: 15443 times, CH2: 15443 times, CH3: 15443 times, CH4: 10 times, and CH5 to 24: 0 times. HIOKI SW2001A971-01...
Page 139 HIPOT HIGH relay n2: HIPOT LOW relay n3: IMPULSE HIGH relay n4: IMPULSE LOW relay n5: AC PD relay A n6: AC PD relay B Example :COUNt:HINPut? 15443,15443,2149,2149,6016,6016 Returns the relay switching count for the high-voltage instrument input channel. HIOKI SW2001A971-01...
Page 140 RESISTANCE METER HIGH relay n2: RESISTANCE METER LOW relay n3: LCR HIGH relay n4: LCR LOW relay n5: Protective relay A n5: Protective relay B Example :COUNt:LINPut? 15443,15443,2149,2149,6016,6016 Returns the relay switching count for the low-voltage instrument input channel. HIOKI SW2001A971-01...
Page 141 Relay A n2: Relay B n3: Relay C n4: Relay D n5: Relay E n6: Relay F n7: Relay G n8: Relay H Example :COUNt:BETWeen? 2149,2149,2149,2149,2149,2149,2149,2149 Returns the switching counts for the relays separating high-voltage parts and low-voltage parts. HIOKI SW2001A971-01...
Page 142 <Delay time> Details Delay time <0~9999> Unit: [ms] (milliseconds) Sets or queries the channel delay time. Example :IO:DELay 2000 Sets the channel delay time to 2000 ms. :IO:DELay? 2000 The channel delay time setting value is 2000 ms. HIOKI SW2001A971-01...
Page 143 <Pulse width> Details Pulse width <1~100> Unit: [ms] (milliseconds) Sets or queries the SWITCHED signal pulse width. Example :IO:PULSe:TIME 100 Sets the SWITCHED signal pulse width to 100 ms. :IO:PULSe:TIME? The SWITCHED signal pulse width is 100 ms. HIOKI SW2001A971-01...
Page 144 Item Default setting Backup *RST :RESet save ✓ ✓ IP address 192.168.1.1 ― ― ✓ ✓ Subnet mask 255.255.0.0 ― ― ✓ ✓ Default gateway 0.0.0.0 (None) ― ― ✓ ✓ Communications command port number ― ― HIOKI SW2001A971-01...
Page 145 Use the original packing materials the instrument was shipped in and be sure to use double packaging. Damage during transportation is not covered by warranty. When requesting repairs, be sure to include a memo that describes the problem in detail. HIOKI SW2001A971-01...
Page 146 To ensure the instrument can be used over the long term, it is recommended to replace these parts on a periodic basis. When replacing batteries, please contact your authorized Hioki distributor or reseller. The service life of parts varies with the operating environment and frequency of use. These parts are not guaranteed to operate throughout the recommended replacement cycle.
Page 147 Use the measuring instrument connected to the channel selected in step 1 to check conductivity. If the result of checking conductivity is Open: The relay is not welded. If the result of checking conductivity is Short: The relay is welded. HIOKI SW2001A971-01...
Page 148 If the result of checking conductivity is Open: There is an Open failure. If the result of checking conductivity is Short: There is not an Open failure. Opening relays Send the open all relays for testing command, and release all relays switched to test mode. :TEST:RELAYSHORT END HIOKI SW2001A971-01...
Page 149 Numerical values are returned in the order of RESISTANCE × 2, LCR × 2, Protective Discharge × 2. (The two numerical values for each measurement system are the same values.) Switching between high-voltage and low-voltage measurement systems :COUNt:BETWeen? Eight numerical values are returned. (All are the same value.) HIOKI SW2001A971-01...
Page 150 To clean the instrument, wipe it gently with a soft cloth moistened with water or mild detergent. Do not use solvents such as benzene, alcohol, acetone, ether, ketone, thinners or gasoline. Doing so could deform and discolor the instrument. HIOKI SW2001A971-01...
Page 151 8.5 Troubleshooting See "Before Requesting Repairs" if you think there is a problem. If this does not help you resolve your problem, contact your authorized Hioki distributor or reseller. Before Requesting Repairs If the power does not operate properly Condition...
Page 152 When you remove the rack mount and restore the instrument to its original condition, use the screws (M4 × 8 mm) that were installed at the factory. If you have lost a screw or find that the screw is damaged, contact your authorized Hioki distributor or reseller.
Page 153 Unscrew the screws (M4 × 8 mm) in four locations on the sides of the instrument. Fix the rack mounting brackets to the instrument with the included screws (M4 × 10 mm) in four locations. HIOKI SW2001A971-01...
Page 154 Approx. 439.2W × 265.9H × 770D mm (17.3W × 10.5H × 30.3D in.) Dimensions (excluding protrusions) SW2001-04: Approx. 20.5 kg (45.2 lbs) SW2001-08: Approx. 22.5 kg (49.6 lbs) SW2001-16: Approx. 27.0 kg (59.5 lbs) SW2001-24: Approx. 31.5 kg (69.4 lbs)
Page 155 Item Description Options See: "Options" HIOKI SW2001A971-01...
Page 156 RESISTANCE: Resistance meter input (banana jacks) Only one channel can be closed at a time. All open can be selected CH1 through CH4 (SW2001-04), CH1 through CH8 (SW2001-08), CH1 through CH16 (SW2001-16), CH1 through CH24 (SW2001-24) Each channel has a SOURCE terminal (or an output...
Page 157 At 1.5 mA or less and 5 kV AC (23°C, 50%RH) Ambient temperature 23°C, 50%RH Effect on AC PD measurement Measurement probe in released state (no capacitive load) (reference value) 40 pC or less when applied voltage is 3kV 100 pC or less when applied voltage is 4kV HIOKI SW2001A971-01...
Page 158 (red): Lights up when HIPOT or IMPULSE relay is ON, turns off when OFF LED display ERROR (orange): REMOTE (green): Lights up when LAN communication is established or a command is received by USB communication Turns off when a remote disengagement command is received HIOKI SW2001A971-01...
Page 159 Maximum cable length Electrical specifications USB 2.0 (Full-speed) Connector Series B receptacle Class CDC class (USB COM) Communication content Settings and queries using communications commands Delimiter Sending: CR+LF, Receiving: CR, LF or CR+LF (automatic detection) Maximum cable length HIOKI SW2001A971-01...
Page 160 Source output compatible: -4.5 V to -5.5 V Maximum output current 100 mA External power supply input None Isolation Floating from protective grounding potential and the measurement circuit Line-to-earth voltage of 33 V rms, 46.7 V AC peak or less HIOKI SW2001A971-01...
Page 161 ON and OFF by communications command. The total relay switching count can be obtained using a communications Relay switching count command. See: "Checking the relay operation count" HIOKI SW2001A971-01...
Page 162 Maximum rated voltage 30 V peak Maximum rated line-to-ground voltage 30 V DC or less, no measurement categories Maximum rated current 2.5 A peak Characteristic impedance 50 Ω Coaxial cable Cable used Characteristic impedance 50 Ω Connector used HIOKI SW2001A971-01...
Page 163 -10°C to 50°C (14°F to 122°F), 80% RH or less (non- range condensing) Dimensions Total length: Approx. 1500 mm (59.1 in.) Weight Approx. 254 g (9.0 oz.) 4200 V peak, no measurement category Maximum rated line-to-ground voltage Anticipated transient overvoltage: 0 V HIOKI SW2001A971-01...
Page 164 Dimensions Total length: Approx. 1500 mm (59.1 in.) Weight Approx. 49 g (1.7 oz.) Maximum rated current 150 mA AC/DC 5000 V AC/DC rms, no measurement category Maximum rated line-to-ground voltage Anticipated transient overvoltage: 0 V HIOKI SW2001A971-01...
Page 165 Dimensions Total length: Approx. 1500 mm (59.1 in.) Weight Approx. 78 g (2.8 oz.) Maximum rated current 0.2 A Maximum rated voltage between lines 30 V AC rms Maximum rated line-to-ground voltage 30 V AC rms HIOKI SW2001A971-01...
Page 166 Maximum rated line-to-ground No measurement category voltage HIGH side: 5 kV AC rms Output terminal BNC terminal Blocking coil inductance 14 mH ±20% Coupling capacitor capacitance 1.33 nF ±10% Tested object measurable 10 nF or less capacitance range HIOKI SW2001A971-01...
Page 167 Approx. 77.2W × 53.6H × 54.2D mm (3.0W × 2.1H × 2.1D in.) Dimensions (excluding protrusions) Weight Approx. 139 g (4.9 oz.) Product warranty duration Not covered Input rated current AC 2 A rms Maximum input current 100 A peak Output terminal BNC terminal HIOKI SW2001A971-01...
Page 168 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE HIOKI SW2001A971-01...
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