Sourcetronic ST1778 User Manual
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Sourcetronic ST1778 User Manual

0-20a dc bias source
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SOURCETRONIC − Quality electronics for service, lab and production
User Manual
0-20A DC BIAS Source ST1778

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Summary of Contents for Sourcetronic ST1778

  • Page 1 SOURCETRONIC − Quality electronics for service, lab and production User Manual 0-20A DC BIAS Source ST1778...
  • Page 2 Edition history: The manual will be continually revised. In case of errors or omissions, revision of device functions, as well as technological and software upgrades, there will be corresponding adjustments and modifications of the manual. February, 2014......................ver1.0 - 2 -...

  • Page 3: Table Of Contents

    3.2 The output command ..........................12 3.2.1 Start ............................... 12 3.2.2 Stop ............................... 12 Chapter 4 Command interface ..............13 4.1 ST1778 RS232C ............................13 4.2 SCPI commands............................13 4.2.1 General command set ........................ 13 4.2.2 ST1778 sub-system commands ....................13 - 1 -...

  • Page 4: Chapter 1 General Information

    0A to 20A. The maximum current output can reach 0-120A by connecting up to five slaves. ST1778 can be used with most of Sourcetronic’s L meters and LCR meters. ST1778 provides a convenient and practical DC Bias Current Source for AC+DC overlap inductor measurement and magnetic material analysis.

  • Page 5: Chapter 2 Panel Description

    Chapter 2 Panel Description Front Panel Description ST1778 BIAS CURRENT SOURCE START STOP Achtung: Lesen Sie vor Inbetriebnahme die Bedienungsanleitung. SINK SOURCE Bei hohen Strömen kann es zu einer Abschaltung aufgrund von Überhitzung kommen. POWER DC BIAS Front panel of host machine...
  • Page 6 output current of the slave reaches 20A, the output led of the slave lights up. LOGO/MODEL Logo and Model OUTPUT PORT The GND terminal is tied to the instrument’s chassis. If using a three-phase socket, this GND terminal is connected to the ground directly. If a large current fixture is used, this GND terminal can be connected to that fixture in order to provide protection.

  • Page 7: Rear Panel Description

    Rear Panel Description Rear panel of host machine Rear panel of slave SERIAL PORT Following the SCPI instruction set to control the output of the bias current and set its parameters. LINK PORT The special link port for daisy-chaining slave devices. FOOT CONTROL INPUT Foot control input interface.

  • Page 8: Chapter 3 Basic Operation

    It is used for inputing the AC current. Please use the three-phase socket. Chapter 3 Basic Operation Instruction of main interface 3.1.1 Diagram and instruction 1. In this zone, tap to enter the management windows, the detailed description follows in next part. 2.
  • Page 9 5. Sub-frame parameter display, when the slave is not powered or connected or not started up, the zone is blank; when it is powered and connected, and user starts it up, the zone is lighted, also the value of output current is displayed. Generally, the current is distributed automatically, if the slave is assigned as one of the output drivers, then it displays 20A, if not, it is 0A.

  • Page 10: Tab Diagram And Function Instruction

    3.1.2 Tab diagram and function instruction Tab—parameter setting Tab—file management...
  • Page 11 Tab—system setting 1. Label function, used to indicate the current label function. 2. Label, used to distinguish the current label and indicate the name, the current label is always on top, if you want to switch, just click the naked zone to switch. 3.
  • Page 12 12. In this zone, there are virtual options and keys, the arrow key is used to turn the page or turn to the front or end page. Other 5 options can be clicked to get the menu or functions. From left to right, there are file storage, 18 17 19 20 22 21 file load, page no.

  • Page 13: Keyboard Diagram And Function

    3.1.3 Keyboard diagram and function...

  • Page 14: The Output Command

    Keyboard—character 17:23:45 Keyboard—calendar setting The output command 3.2.1 Start 1. Use START to control the output, long press can generate long pulse beeper. 2. Use foot switch to control the output, there are 5 modes, the mode can be revised in parameter setting Edge_U: Rising edge trigger Edge_D: Falling edge trigger...

  • Page 15: Chapter 4 Command Interface

    Chapter 4 Command interface ST1778 RS232C As the most serial ports, ST1778 is not strictly based on RS-232, and uses only a minimal subset of the 9 pins. Only three wires are actually used: Signal Abbr. Pin No. Send data...
  • Page 16 DEVIce is used to inform if ST1778 follows Sourcetronic standard with the communicated instrument. Different settings will cause different system action: If Sourcetronic standard is used (TH), there is no return if a parameter is changed; if switch to common mode (COMMon), all activity will be reported back to the controller (default is common).
  • Page 17 <number string>: <NR1> 1~99 <DELI> separator“,.:-” E.g.:Send_Command (”MEMO:SAVE 1,5.16,21:34,75,94-97”); save the file of No.1, 5, 16, 75, 16 to 21 and 94 to 97. :READ read file Command: MEMOry:READ <number><LF> <number>: <NR1> 1~99 E.g.:Send_Command (”MEMO:READ 5”); read the No.5 file, the description is as: File head Description Format...
  • Page 18 3. PARAmeter sub system command set PARAmeter sub system command set is used to remote adjust the parameter. Command tree: PARAmeter —— :CURRent —— <NR3> :DELaY :FREQuence :STEP :FOOT EDGeD EDGeU HOLD LOCKed VOLTage :CURRent set the output current (unit:A), ”?” can inquire the current. Command: PARAmeter:CURRent <number><LF>...
  • Page 19 Command: PARAmeter:STEP <string><LF> <string>: EDGeD set the valid mode as down edge EDGeU set the valid mode as up edge HOLD set the valid mode as hold LOCKed set the mode as lock, it means turn off VOLTage set the mode as level E.g.:Send_Command(”PARA:FOOT EDGD”);...
  • Page 20 Bit5: if unbalance Bit6: if set this set :WORKing obtain the working state, add “?”at the end. Command: STATe:WORKing?<LF> E.g.:Send_Command(”STAT:WORK?”); obtain the working state. Definition of returned data: “preparing”: the system is in prepare “stop”: the system is in stop, waiting for trigger or other thing happen “running”: system is in output state :SLAVe obtain the state of slave, add“?”at the end.
  • Page 21 NR1 1~5 “,” ID interval E.g.:Send_Command(”SWIT:SLAV:TNON 1,2,5?”); turn on the slaves No,1, 2, 5 7. SYSTem sub system command set SYSTem sub system command set is used to adjust the system settings Command tree: SYSTem —— :BAUD —— <NR1> :BEEP ——...
  • Page 22 E.g.:Send_Command(”SYST:TOUB ON”); turn on the touch beep :LANGuage Command: SYSTem:LANGuage <string> <string>: CHInese simplified Chinese ENGlish English E.g.:Send_Command(”SYST:LANG ENG”); change the system language to English 8. WORKing sub system command set WORKing sub system command set is used to control the output of device. Command tree: WORKing ——...

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