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Voltage Settings 

ET System electronic GmbH 

 

 

VOLTAGE SETTINGS 

U

LIMIT

 AND 

I

LIMIT

 

U

limit 

limits the maximum output voltage. The output voltage is limited to the selected value, irrespective of the values 

that  have  been  set  at  the  front  panel  or  at  one  of  the  interfaces.  The  adjustment  range  is  0  V  up  to  the  maximum 
rated voltage of the device. 
 
I

limit

 limits the maximum output current. The output current is limited to the selected value, irrespective of the values 

that have been  set at the front  panel or at one of the interfaces. The adjustment  range is 0 A up to the  maximum 
rated current of the device. 
 
These settings can only be changed at the display and they apply to all interfaces. 

OVP

 

(O

VER 

V

OLTAGE 

P

ROTECTION

The output is shut immediately if the output voltage exceeds the selected value. The display indicates this status with 
the word 

‚OVP‘

. To reset this error, push the button 

Standby

. The OVP value applies to the front panel operation. 

There may apply different values for the AI-interface and the digital interface. The digital interface is initialized with 
the

 

value which has been adjusted on the front panel. The adjustment range is 0 V up to the maximum rated voltage 

of the  20%. 

AI-T

YPE

 

This feature adjusts the voltage levels of analog input signals and analog output signals. Selectable ranges are 0-5 V 
and 0-10 V. 

D

ESCRIPTION OF THE DIFFERENT 

LED

S

 

CV 

Constant Voltage 

PV 

Preset Voltage 

CC 

Constant Current 

PC 

Preset Current 

CP 

Over Voltage Protection 

Remote 

Local or Remote Operation 

Standby 

Standby Status 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for LAB-HP/E 10KW

Page 1: ...ET System electronic GmbH Telefon 06205 3948 0 Fax 06205 37560 Hauptstra e 119 121 info et system de 68804 Altlu heim www et system de C LAB HP E...

Page 2: ...Software version V15 November 2016...

Page 3: ...Description of the different LEDs 9 Universal interface 10 Commands 10 Format 10 Instruction Set 10 Quick view of commands 10 Detailed description of commands 10 Response String 16 Ext Control Comput...

Page 4: ...net 27 TELNET Connection with REALTERM 27 Ext Control USB 28 Interface Reconfiguration 28 Sense Mode 29 Load connection without Sensor Conductor 29 Load Connection without Sensor conductor 29 Load con...

Page 5: ......

Page 6: ......

Page 7: ...ent manufacturing control through accredited laboratories and an ISO 9001 compliant quality management system guarantee a constant high level series production quality We offer repairs and adjustment...

Page 8: ...pe D K 63A Type D K 63A Type D K 80A Type D K 120A Type D K 150A Type D K Leakage current cos phi Harmonic content 3 Efficiency Type 50Hz 72 100Hz 2 150Hz 0 9 200Hz 0 1 250Hz 11 350Hz 0 6 94 153 A 229...

Page 9: ...e no Load Rel Accuracy 7 Voltage V 0 25 0 038 0 050 0 063 0 088 0 100 0 113 0 175 0 200 0 250 0 375 0 750 1 500 2 000 2 500 3 000 3 750 Current A 0 4 1 000 1 000 0 800 0 580 0 500 0 480 0 288 0 260 0...

Page 10: ...4 ET System electronic GmbH IMPORTANT SAFETY INSTRUCTIONS...

Page 11: ...oken connectors Do not use the device if any physical damage is apparent Please inform the carriers and a representative of ET System electronic immediately MAINS OPERATION Make sure to verify the mod...

Page 12: ...Important Safety Instructions 6 ET System electronic GmbH...

Page 13: ...fety Instructions ET System electronic GmbH 7 FUNCTIONAL DESCRIPTION THE FOLLOWING BLOCK DIAGRAM GIVES INFORMATION ABOUT THE VARIOUS ADJUSTMENT OPTIONS UI Mode Unit is oprated with current and voltage...

Page 14: ...arameters for voltage current and OVP Over Voltage Protection Since the device is operated in UI mode only the set values for voltage and current will be transferred directly to the switching regulato...

Page 15: ...pply to all interfaces OVP OVER VOLTAGE PROTECTION The output is shut immediately if the output voltage exceeds the selected value The display indicates this status with the word OVP To reset this err...

Page 16: ...s the same GTL Gtl gTL Decimal places are optional and separated by a full stop The number of decimal places is not limited Therefore the effect of the following commands is the same UA 10 UA 10 0 UA...

Page 17: ...AL button LIMI Limit Ia Reads maximum adjustable current limitation LIMU Limit Ua Reads maximum adjustable voltage limitation MI Nr Measure Ia Measures present output current MU Nr Measure Ua Measures...

Page 18: ...This command adjusts current limiting Entering the command without parameters displays the set value If the set value is higher than the maximum current of the unit the range error bit within the ESR...

Page 19: ...ery of maximum adjustable current LIMU 200 0V Unit answers Ulimit 200 0 V MI Nr Measure Ia This command measures the present output current Example LAB HP E 15100 100VDC 150A GTR Remote operation OVP...

Page 20: ...e echo timeout Program Communication This command adjusts the interfaces The LAB HP E has a maximum of 3 digital interfaces x 1 2 or 3 The corresponding commands are PC1 PC2 or PC3 Type and number of...

Page 21: ...bits 2 stop bits no handshake no parity echo on PC1 115200 N 8 2 N E Adjust baud rate to 115200 baud The new baud rate is active immediately after the command has been sent PC2 Query of second interfa...

Page 22: ...without parameters displays the present set point If the set point exceeds the maximum voltage of the unit the range error bit within the ESR register of the interface is set The present set point rem...

Page 23: ...U LIMU 500V UA UA 100V LIMI LIMI 30 00A OVP OVP 600V Example Command as ASCII and HEX protocol L I M U 5 0 0 0 V 4C 49 4D 55 2C 35 30 30 2E 30 56 0D 0A The digits after the decimal point correspond to...

Page 24: ...ddress S1 S2 S3 S4 S5 Address S1 S2 S3 S4 S5 Address Off Off Off Off Off 0 Off Off Off Off On 16 On Off Off Off Off 1 On Off Off Off On 17 Off On Off Off Off 2 Off On Off Off On 18 On On Off Off Off 3...

Page 25: ...the command STB or STB Return value STB xxxxxxxx Table Reading the status word Bit Function D7 n a D6 SRQ is set if SRQ was requested D5 ESB is set if a byte was set within the SES register D4 MAV is...

Page 26: ...00 57600 62500 115200 Parity O Odd uneven parity E Even even parity N None no parity bit Number of data bits 7 or 8 Number of stop bits 1 or 2 Handshake H Hardware S Software N None no handshake The d...

Page 27: ...erface sending the command PCx from one of the other interfaces using the display to configure the interface Interface Parameters RS485 INTERFACE OPTION The interface works with the following paramete...

Page 28: ...op bits 0 1 Stop bit D4 Data format 1 8 bit 0 7 bit D3 n a D2 Table D1 Table D0 Table Table Error messages D2 D1 D0 Error 0 0 1 Syntax 0 1 0 Command 0 1 1 Range 1 0 0 Unit 1 0 1 Hardware 1 1 0 Read In...

Page 29: ...tor output voltage Real on output 9 gnd GND 10 digital out Standby Signals standby 11 gnd GND 12 nc 13 REF 5 10 5 10 V Vref Output 5 10 V reference voltage 14 analog in Uset Set point U 15 analog in I...

Page 30: ...h the word Error To reset this error standby mode must be activated Adjustment range is 0 V up to the maximum rated voltage of the device 20 Example LAB HP E with 600 V output voltage AI is adjusted t...

Page 31: ...ivated by an applied voltage of 5 V up to 10 V Front panel operation is deactivated Operation mode is marked as AI on the display The digital interface takes priority over the AI interface The setting...

Page 32: ...The status word can be read with the command STB or STB Only bits from D0 up to D2 are in use All other bits can be 1 or 0 Table Error messages D2 D1 D0 Error 0 0 1 Syntax 0 1 0 Command 0 1 1 Range 1...

Page 33: ...trolling the device via port 10001 the user interface of the device must not be open in a browser TELNET CONNECTION WITH REALTERM Realterm is a free OpenSource terminal program which may be downloaded...

Page 34: ...e RTS CTS D8 Software handshake XON XOFF D7 Parity enable D6 Parity mode 1 odd 0 even D5 Stop bit 1 2 Stop bits 0 1 Stop bit D4 Data format 1 8 bit 0 7 bit D3 used internally can be 1 or 0 D2 Table D1...

Page 35: ...situation is essential Illustration 2 shows a correct load distribution Illustration 1 shows an insufficient supply of load 2 load 3 etc via parallel load conductors In practice it may occur that an...

Page 36: ...evice resulting in a residual error of up to 0 5 depending on the load line used More detailed information can be obtained from the manufacturer WARNING INSTRUCTIONS FOR USING RELAYS TO THE LOAD DRAFT...

Page 37: ...allel which doubles or triples the measured leakage current This is permissible according to the norm Quotation from the norm of 2008 appendix D When measuring protection conductor currents with the e...

Page 38: ...asured ripple by using a bandwidth of 20MHz and the blue line shows the measured ripple by using a measure bandwidth of 300kHz This example shows that the measurement bandwidth have a strong influence...

Page 39: ...a frequency analyser Bode 100 Also the used 1 1 Oscilloscope probe was during the tuning procedure connectet to the rippel measurment setup to elemenate the influence of the probe to the measurment b...

Page 40: ...Notes 34 ET System electronic GmbH NOTES...

Page 41: ...Notes ET System electronic GmbH 35...

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