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iseg EHQ 1 Series, Technical Documentation Manual

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iseg EHQ 1 Series Technical Documentation Manual Download Page 1

Technical documentation

Last changed on: 11.05.2020

EHQ series

High Precision Single Channel High Voltage Power Supply Module

•

1 channel, 2 / 3 / 4 / 5 kV and customized versions

•

LCD for voltage and current display

•

switchable polarity

•

very low ripple and noise

•

front panel control with highly precise 10-turn

•

potentiometer

•

hardware voltage and current limits with 10 % steps

•

USB, RS232, CAN interfaces

•

programmable parameters (current trip, voltage ramp etc.)

Summary of Contents for EHQ 1 Series

Page 1: ...dule 1 channel 2 3 4 5 kV and customized versions LCD for voltage and current display switchable polarity very low ripple and noise front panel control with highly precise 10 turn potentiometer hardware voltage and current limits with 10 steps USB RS232 CAN interfaces programmable parameters current trip voltage ramp etc ...

Page 2: ... iseg Spezialelektronik GmbH This information has been prepared for assisting operation and maintenance personnel to enable efficient use The information in this manual is subject to change without notice We take no responsibility for any mistake in the document We reserve the right to make changes in the product design without reservation and without notification to the users We decline all respo...

Page 3: ...ty instructions DANGER DANGER Danger indicates a severe injury hazard The non observance of safety instructions marked as Danger will lead to possible injury or death WARNING WARNING Warning indicates an injury hazard The non observance of safety instructions marked as Warning could lead to possible injury or death CAUTION CAUTION Advices marked as Caution describe actions to avoid possible damage...

Page 4: ... on the basis of his technical training his knowledge and experience as well as his knowledge of the relevant regulations General safety instructions Observe the valid regulations for accident prevention and environmental protection Observe the safety regulations of the country in which the product is used Observe the technical data and environmental conditions specified in the product documentati...

Page 5: ...ic strength Do not power the consumer load outside of its specified range WARNING WARNING Before connecting or disconnecting HV cables or any operation on the HV output or the application the unit has to be switched off and discharge of residual voltage has to be finished Depending on application residual voltages can be present for long time periods WARNING WARNING Do not operate the unit in wet ...

Page 6: ...ged CAUTION CAUTION When controlling with software the high voltage systems make sure that nobody is near the high voltage or can be injured INFORMATION INFORMATION Please check the compatibility with the devices used EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 6 46 ...

Page 7: ...0 6 3 1 Under Windows 20 6 3 2 Under Linux 22 7 ISEG instruction set old DCP 23 7 1 Status information 24 7 2 Error codes 24 7 3 Module status 25 7 4 Auto start 25 7 5 Software 25 7 6 Program example 26 8 SCPI command list 27 8 1 change of command mode 27 8 2 iseg SCPI command set 27 8 3 Examples 29 9 Description of control status event and mask registers 30 9 1 Channel Status read access 30 9 2 C...

Page 8: ... Accesories 43 14 Appendix 43 15 ASCII character table 44 16 Glossary 45 17 Warranty Service 46 18 Disposal 46 19 Manufacturer contact 46 EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 8 46 ...

Page 9: ...ures high precision output voltage and very low ripple even under full load Separate hardware switches allow to put voltage and current limits in 10 steps The INHIBIT input protects sensitive devices Additionally a maximum output current can be specified via the interface The high voltage source is protected against overload and short circuit The output polarity can be switched over The HV GND is ...

Page 10: ...anual 10 turn potentiometer DAC control via serial interface Protection Overload and short circuit protected ATTENTION there is only one short circuit or arc per second allowed separate current and voltage limit hardware rotary switch in10 steps INHIBIT external signal TTL level Low active programmable current limit software Connector 96 pin connector according to DIN 41612 on the rear USB mini B ...

Page 11: ... kV 3 mA 2 mV 1 µA 1 V E10 40 L N12 EHQ 105 M 5 kV 2 mA 5 mV 1 µA 1 V E10 50 L N12 Option N12 EHQ 102 M 2 kV 3 mA 2 mV 1 µA 1 V E10 20N12 L EHQ 103 M 3 kV 2 mA 2 mV 1 µA 1 V E10 30N12 L EHQ 104 M 4 kV 1 mA 2 mV 1 µA 1 V E10 40N12 L EHQ 105 M 5 kV 1 mA 5 mV 1 µA 1 V E10 50N12 L Option 104 EHQ 102 L 2 kV 100µA 2 mV 100 nA 1 V E10 20104 EHQ 103 L 3 kV 100µA 2 mV 100 nA 1 V E10 30104 EHQ 104 L 4 kV 10...

Page 12: ...3 Description The functional principle is described in the block diagram Figure 1 Block diagram EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 12 46 ...

Page 13: ...nction caused by low supply voltage The internal error detection logic evaluates the corresponding error signals and the external INHIBIT signal and impacts the output voltage according to the setup In addition this allows the detection of short over currents due to single flashovers 3 2 Digital control unit A micro controller handles all internal control evaluation and calibration functions The a...

Page 14: ...ing switch 10 turn potentiometer HV ON switch CONTROL switch INHIBIT input KILL switch Polarity indicator HV ON indicator HV output USB mini B Figure 2 Front Panel with USB EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 14 46 ...

Page 15: ...on starts immediately with the saved parameters The LCD displays the output voltage in V or the output current in µA 1 depending on the position of the Measuring switch In the manual control mode the output voltage can be set via 10 turn potentiometer in a range from 0 to the maximum voltage If the CONTROL switch is switched over to serial interface control DAC the DAC takes over the last set outp...

Page 16: ...TION INFORMATION If a capacitance is effective at the HV output or when using a high voltage ramp speed hardware ramp under high loads then the KILL function may be triggered by the capacitor charging currents In this case smaller output voltage change rates software ramp should be used or ENABLE KILL should only be selected once the set voltage is reached at the output 5 RS232 Interface 5 1 RS232...

Page 17: ...me is included to allow the computer to receive and evaluate the incoming data The default delay time setting is 3 ms INFORMATION INFORMATION The hardware setting of the RS232 interface is 9600 bit s 8 bit character no parity 1 stop bit Signal transmission is performed potential free via the RxD and TxD relative to GND The pin assignment at the PC side is given in the table The bridging on the PC ...

Page 18: ...inal program 6 1 Driver Installation The FTDI VCP driver Virtual COM Port can be downloaded from http download iseg hv com Software Tools FTDI USB Serial Driver Windows 2 x x exe Usb connection test To determine if the installation was successful check if the serial USB interface is shown in the Device Manager Start the Device Manager with Windows 7 Start Control Panel Device Manager or Windows 10...

Page 19: ...oduct 6001 234 704376 usb 1 2 New USB device strings Mfr 1 Product 2 SerialNumber 3 234 704380 usb 1 2 Product FT232R USB UART 234 704382 usb 1 2 Manufacturer FTDI 234 704385 usb 1 2 SerialNumber A60075cx 234 807627 usbcore registered new interface driver usbserial 234 807649 usbserial USB Serial support registered for generic 234 807679 usbcore registered new interface driver usbserial_generic 23...

Page 20: ...s COM LPT in this case COM3 Figure 4 Example illustration under Windows 7 HyperTerminal is included in Windows 2000 and XP Create a new connection with menu File New Connection name it e g EHQ and click OK The following dialog appears Choose your serial port and click OK Figure 5 Example illustration EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 20 46 ...

Page 21: ... finished As last setting File Properties Settings ASCII Setup The setting Send line ends with line feeds has to be made see following picture Figure 7 Example illustration You can now test the communication with the device EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 21 46 ...

Page 22: ... an iseg USB or serial device the following settings are needed Device dev ttyUSB0 or other interface according to dmesg output Baud rate 9600 Data bits 8 Stop bits 1 Parity None Handshake None Line end CR LF Now the serial interface can be opened by Open device to test the communication Figure 9 Example illustration CuteCom EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg ...

Page 23: ...l 1 N1 N1 nnn in of IOUTMAX Read set voltage channel 1 D1 D1 voltage V Write set voltage channel 1 D1 nnnn D1 nnnn voltage M1 V Read ramp speed channel 1 V1 V1 nnn 2 255 V s 020 20 V s V s Write ramp speed channel 1 V1 nnn V1 nnn ramp speed 2 255 V s V s Start voltage change channel 1 G1 G1 S1 xxx S1 Status information see 7 1 Status information S1 ON Write current trip channel 1 L1 nnnn L1 nnnn c...

Page 24: ... voltage falling LAS Look at Status only after G command TRP Current trip was active If output voltage has been shut off permanently by ERR or INH at ENABLE KILL or TRP the command READ STATUS WORD must be executed before the output voltage can be restored 7 2 Error codes Syntax error WCN Wrong channel number TOT Timeout error with following reinitialization SP UMAX nnnn Set voltage exceeds voltag...

Page 25: ...LL or the programmed current trip the output voltage cannot be reset after reading the device status 7 4 Auto start Description Bit Valency If the precondition for Auto start module status OFF ERR INH MAN 0 is satisfied the output voltage is automatically ramped to the set voltage Thus the G command or POWER ON and OFF ON are not required If output voltage has been shut off permanently by ERR or I...

Page 26: ...Y INT I CNT BOOLEAN OK VOID MAIN VOID CLRSCR COM2_INIT COM2_SET 9600 COM2 9600 BAUD 8 DATABITS NO PARITY 1 STOPBIT OK TRUE_ PTR READU FOR IF PTR ETX BREAK COM2_SEND PTR SEND ONE BYTE RBY COM2_READ READ ONE BYTE IF RBY PTR OK FALSE_ COMPARE SENT WITH READ DATA ELSE SWITCH RBY CASE LF PRINTF C LF BREAK CASE CR PRINTF C CR BREAK DEFAULT PRINTF C RBY BREAK IF OK FALSE_ PRINTF NO COINCIDENT READ DATA F...

Page 27: ...d iseg instruction set 8 2 iseg SCPI command set Command for channels Description VOLTage Voltage V Set the channel voltage set Vset in Volt EMCY OFF shut channel emergency off EMCY CLR clear shut channel emergency off BOUnds voltage set channel voltage bounds CURRent Current A set channel current BOUnds current A set channel current bounds Event CLEAR clear channel events MASK word set channel ev...

Page 28: ...query channel current bounds CURRent LIMit query current limit NOMinal query channel current nominal BOUnds query channel current bounds RAMP VOLTage query voltage ramp speed CURRent query current ramp speed MODule CONTrol query module control word STATus query module status word EVent STATus query module event status word MASK query module event mask word CHANSTATus query module channel event sta...

Page 29: ...ACTivity query the action of the delayed trip function when the time has been exceeded see TRIP ACT IDNT query module identification Notes Space 8 3 Examples Set Voltage to 1000 5V VOLT 1000 5 Set Current to 1 58mA CURR 0 00158 Set Voltage Ramp speed to 30 Volt per second CONF RAMP VOLT 30 Query serial Echo status CONF ECHO Enable serial Echo CONF ECHO ON Notes Space EHQ High Voltage Power Supply ...

Page 30: ...le e g Vset 2800 at a module with NominalVoltage 3000V but HardwareLimitVoltage 2500V A certain signature which kind of input error it is does not exist Status Bit Description Is Voltage Limit voltage limit set by Vmax is exceeded Is Current Limit current limit set by Imax is exceeded Is Current Trip Trip is set when Voltage or Current limit or Iset has been exceeded when KillEnable 1 Is External ...

Page 31: ... ok Imeas Iset Ibounds Is Constant Voltage channel is in state of voltage control Is Constant Current channel is in state of current control Is Emergency Off channel is in state of emergency off VOUT has been shut off to 0V without ramp Is Voltage Ramping no voltage is in change voltage is in change with the stored ramp speed value Is ON channel is off channel voltage follows the Vset value Is Inp...

Page 32: ...mit has been exceeded Event Current Trip Trip is set when Voltage or Current limit or Iset has been exceeded when KillEnable 1 Event External Inhibit external Inhibit Event Voltage Bounds Voltage out of bounds Event Current Bounds Current out of bounds Event Constant Voltage Voltage control Event Constant Current Current control Event Emergency Off Emergency off Event End Of Voltage Ramp End of ra...

Page 33: ...rved Status Bit Description Mask Event Voltage Limit Hardware voltage limit has been exceeded Mask Event Current Limit Hardware current limit has been exceeded Mask Event Trip Voltage limit or Current limit or Iset has been exceeded when KillEnable 1 Mask Event Ext Inhibit External Inhibit Mask Event Voltage Bounds Voltage out of bounds Mask Event Current Bounds Current out of bounds Mask Event Co...

Page 34: ...set and no event has occurred and is not registered yet in minimum bit 10 to 15 of the register Channel Event Status must be 0 a start of a HV ramp will be synchronized a ramp is a software controlled time proportionally increase decrease of the output voltage Control Bit Description when the Bit is 0 Description when the Bit is 1 Set Emergency Off channel emergency cut off works cut off VOUT shut...

Page 35: ...the single status for the complete module Status Bit Description Is Kill Enable Module state of kill enable Is Temperature Good Module temperature good Is Supply Good Power supply good Is Module Good Module in state good Is Event Active Any event is active and mask is set Is Safety Loop Good Safety loop closed Is No Ramp All channels stable no ramp active Is No Sum Error Module without failure Is ...

Page 36: ...ctive no Event is active any Event is active Is Safety Loop Good safety loop is broken VOUT has been shut off safety loop is closed Is No Ramp VOUT is ramping in at least one channel no channel is ramping Is No Sum Error voltage limit current limit trip voltage bound or current bound has been exceeded in at least one of the channels or external INHIBIT error reset by reset of the corresponding fla...

Page 37: ...ved Reserved Event Service Reserved Reserved Reserved Status Bit Description Event Temperature Not Good Temperature is above 55 C Event Supply Not Good at least one of the supplies is not good Event Safety Loop Not Good Safety loop is open Event Service A hardware failure of the HV module has been detected The HV is switched off without the possibility to switch on again Please consult the iseg Sp...

Page 38: ...stment Set Big Endian Order of bytes in word 0 Little Endian INTEL 1 Big Endian MOTOROLA Do Clear Hardware Clear Kill signal and clear all event signals of the module and the channels Reserved Control Bit Description when the Bit is 0 Description when the Bit is 1 Set Kill Enable kill function disable kill function enable Set Fine Adjustment fine adjustment OFF fine adjustment ON Set Big Endian bi...

Page 39: ...escription IDN query module identification reply iseg Spezialelektronik GmbH EHQ 103 480403 3 00 CLS clear module event status RST Reset restart of the device INSTR query the selected instruction set reply EDCP or DCP INSTR SCPI or INSTR EDCP select SCPI instruction set INSTR iseg or INSTR DCP select old iseg instruction set EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg ...

Page 40: ...ensional drawings Figure 10 EHQ with USB Figure 11 EHQ side cover Polarity rotary switch Rotary switches for Vmax and Imax EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 40 46 ...

Page 41: ...em code POWER SUPPLY SIDE CABLE SIDE SHV ROSENBERGER Socket 57S501 200N3 Connector 57K101 006N3 Z590162 S08 RADIALL Socket R317 580 000 Connector R317 005 000 Z592474 Limit monitor 1pol LEMO INHIBIT signal 1pol LEMO Socket ERN 00 250 CTL Connector FFA 00 250 CTAC31 Z200793 EHQ High Voltage Power Supply series Last changed on 11 05 2020 www iseg hv com 41 46 ...

Page 42: ...iguration item code CABLE ORDER GUIDE POWER SUPPLY SIDE CONNECTOR CABLE CODE CABLE DESCRIPTION LOAD SIDE CONNECTOR ORDER CODE LLL length in m 1 SHV 04 HV cable shielded 30kV HTV 30S 22 2 open SHV_C04 LLL S08 04 HV cable shielded 30kV HTV 30S 22 2 open S08_C04 LLL Notes 1 Length building examples 10cm 0 1 2 5m 2 5 12m 012 999m 999 Table 6 Item code parts for different configurations EHQ High Voltag...

Page 43: ...on please use the following download links This document https iseg hv com download dir SYSTEMS MME EHQ iseg_manual_EHQ_en pdf Iseg Terminal https iseg hv com download dir SOFTWARE isegTERMINAL Terminal under Windows 10 https www microsoft com de de store top free apps pc category Developer tools 5cUtilities https github com microsoft terminal FTDI USB Serial Driver Windows xxx exe https iseg hv c...

Page 44: ...09 m 0x0E 14 SO 0x2E 46 0x4E 78 N 0x6E 110 n 0x0F 15 SI 0x2F 47 0x4F 79 O 0x6F 111 o 0x10 16 DLE 0x30 48 0 0x50 80 P 0x70 112 p 0x11 17 DC1 0x31 49 1 0x51 81 Q 0x71 113 q 0x12 18 DC2 0x32 50 2 0x52 82 R 0x72 114 r 0x13 19 DC3 0x33 51 3 0x53 83 S 0x73 115 s 0x14 20 DC4 0x34 52 4 0x54 84 T 0x74 116 t 0x15 21 NAK 0x35 53 5 0x55 85 U 0x75 117 u 0x16 22 SYN 0x36 54 6 0x56 86 V 0x76 118 v 0x17 23 ETB 0x...

Page 45: ...bounds around Vset Inom nominal output current Iout output current Iset set value of output current Imon monitor voltage of output current Imeas digital measured value of current Itrip current limit to shut down the output voltage Iin input supply current Imax limit max value of output current Ilimit Current Limit Ibounds Current bounds a tolerance tube Iset Ibounds around Iset Pnom nominal output...

Page 46: ...rt rma 18 Disposal INFORMATION INFORMATION All high voltage equipment and integrated components are largely made of recyclable materials Do not dispose the device with regular residual waste Please use the recycling and disposal facilities for electrical and electronic equipment available in your country 19 Manufacturer contact iseg Spezialelektronik GmbH Bautzner Landstr 23 01454 Radeberg OT Ross...

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