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System-Related Functions

Copyright ©ITECH Electronic Co., Ltd.

58

⚫

Latch: When input an inhibit signal and the instrument output is turned OFF.
The ON/OFF button will be lighted off, the status bar of the LCD screen
displays INH warning icon. In this case, user need to remove the input signal
and press [Shift]+[Esc] to cleare protection, then manually turn on [On/Off]
again.

Digital IO-2

IO-1 pin can be set to

【

PS-claer

】

,

【

Input

】

,

【

Output

】

The default function is to clear the protected state. When the protection occurs,
the protection state can be cleared through this pin, so that the instrument can
continue to output normally.

IO-2 is bi-directional, that is, when the power supply is in a protected state, the
instrument can receive a pulse signal from an external input through IO-2 for
clean protection operation, or when the power supply is in a protected state, the
clean protection can generate a pulse signal from IO-2.

Digital IO-3

IO-3 pin can be set to

【

PS

】

,

【

Input

】

,

【

Output

】

The default function is protection state indicator. IO-3 pin will output high or low
level based on whether the instrument is under protection or not. Under normal
conditions (Not under protection), and when pin3 is under default setting (Not
Invert), pin 3 outputs high level; when the instrument is under protection, pin 3
outputs low level. When pin3 is set to Invert, the output level is completely
opposite.

Digital IO-4

IO-4 pin can be set to

【

Sync-in

】

,

【

Sync-out

】

,

【

Input

】

,

【

Output

】

This function can be used to simulate the six-phase output mode, in which one
IT7900 outputs a synchronous signal to another IT7900, and the second power
supply runs synchronously with the frequency and phase of the first power
supply to realize the six-phase output function.

【

Sync-in

】

: Synchronous input function, which is used to output frequency lock

or phase lock with the external signal. At this time, the machine synchronizes
the frequency or phase information input from the IO-4 pin.

【

Sync-out

】

: Synchronous output function, the IT7900 produces synchronous

signal to the outside, which is AC zero crossing pulse signal sent from the IO
port.

Digital IO-5

IO-5 can be set to

【

OnOff-status

】

,

【

Input

】

,

【

Output

】

The default function is to indicate the output state of the power supply, in case
of output is ON, output 5V, otherwise, output 0V.

When pin5 is set to Invert, the output level is completely opposite.

Digital IO-6

IO-6 can be set to

【

Trigger1-in

】

,

【

Trigger1-out

】

,

【

Input

】

,

【

Output

】

【

Trigger1-in

】

: The input trigger signal, the pulse signal sent to the IO-6 pin can

be used as the trigger source. Users can select as the trigger source of the

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Содержание IT7800 Series

Страница 1: ...Programmable AC Power Supply IT7800 Series User Manual Model IT7800 Version V1 0 2021 04...

Страница 2: ...he materials in this document that conflict with these terms the warranty terms in the separate agreement shall prevail Technology Licenses The hardware and or software described herein are furnished...

Страница 3: ...overseas all the freights duties and other taxes shall be on the account of customer Limitation of Warranty This Warranty will be rendered invalid if the product is Damaged resulting from customer wir...

Страница 4: ...lectronic load without overheating If there are multiple loads each pair of the load power cord must be carry out the full rated short circuit output current of the power securely Ensure the voltage f...

Страница 5: ...ense terminals before touching them Failure to use the instrument as directed by the manufacturer may render its protective features void Always clean the casing with a dry cloth Do not clean the inte...

Страница 6: ...tely recycled Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC Waste Electrical and Electronic Equipment WEEE Directive This product complies with the WEEE Directive 2002 96 EC mark...

Страница 7: ...2 2008 EN 61000 4 2 2009 IEC 61000 4 3 2006 A1 2007 A2 2010 EN 61000 4 3 2006 A1 2008 A2 2010 IEC 61000 4 4 2004 A1 2010 EN 61000 4 4 2004 A1 2010 IEC 61000 4 5 2005 EN 61000 4 5 2006 IEC 61000 4 6 20...

Страница 8: ...2 Chapter3 Getting Started 27 3 1 Power on the Instrument 27 3 2 Touch Screen Introduction 28 3 3 Set output parameters 28 3 4 Output On Off Control 29 Chapter4 Operation and Application 30 4 1 Select...

Страница 9: ...hapter7 Configuration Arbitrary Waveform 70 7 1 List Function 70 7 1 1 Create a new List file 70 7 1 2 Select Run List File 72 7 1 3 Import Export List file 73 7 2 Setting of Surge Sag Configuration 7...

Страница 10: ...ch institutes etc High power density 3U up to 15kVA Master slave parallel with current sharing technology up to 960kVA multiple units in parallel work as one Voltage up to 350V L N 500V L N Output fre...

Страница 11: ...r 3 IT7812 350 90 12kVA 350V 90A 1 or 3 IT7815 350 90 15kVA 350V 90A 1 or 3 IT7830 350 180 30kVA 350V 180A 1 or 3 IT7845 350 270 45kVA 350V 270A 1 or 3 IT7860 350 360 60kVA 350V 360A 1 or 3 IT7875 350...

Страница 12: ...manual trigger Power Power Switch Menu Used for going back to menu page V set Set the output voltage value F set AC mode set the output frequency DC mode F set is invalid Config Enter to Configuration...

Страница 13: ...s shift and the shift key will be lighted and then press the function key the detailed functions are listed as follows Keys Description Shift V set List Enter the List function menu Shift F set Sweep...

Страница 14: ...t Menu Item The knob can also be used to view menu items In the menu item display interface turning the knob clockwise indicates that the next menu item is selected and turning the knob anticlockwise...

Страница 15: ...el connection between the master with operation panel and the slaves without operation panel Connect the interface on the rear panel of each unit to be connected in parallel and the master can offer s...

Страница 16: ...meter interface of IT7800 three phase mode is shown as follow The parameters are the same as the single phase Under three phase mode display total parameters corresponding to Phase A B and C the user...

Страница 17: ...tion description Shift Compound key Output is off Output is on Key operation is locked Single phase AC mode Three phase AC mode Single phase DC mode Three phase AC DC mode Split phase AC mode Split ph...

Страница 18: ...ons The following optional accessories from ITECH are sold separately Users need to purchase separately Device Name Model Description GPIB communication interface IT E176 When the user needs to use GP...

Страница 19: ...and cables IT E169 Used for parallel connection between cabinets including one fiber module and one 2 5m fiber cable The fiber optic module and cable are the necessary accessories for the parallel con...

Страница 20: ...1 1 Brief Introduction Power Cord X1 Number of the power cords vary depending on the model See the Section 2 3 Connectiong the Power Cord for power cord connection USB cable x1 Factory alignment repor...

Страница 21: ...ify that there is no dangerous voltage on the connection terminals To avoid fire or electric shock Make sure to use the power cord supplied by ITECH Be sure to connect the power cord to the AC distrib...

Страница 22: ...l of 3kVA and 5kVA power supply can support single phase AC power input The detailed specifications refer to Technical Specifications The voltage level range is 190V 528V and frequency range is 45Hz 6...

Страница 23: ...it requires single phase or three phases of AC distribution box the rated AC current on L3 is 0 so it can be connected or not In case multiple units are connected to the same main AC distribution box...

Страница 24: ...mum current values refer to Specifications of Red and Black Test Lines in Appendix Before connecting test lines be sure to switch off the instrument Power switch is in Off position Otherwise contact w...

Страница 25: ...s shown as follow NOTE When the output voltage has DC voltage the output terminal L is positive and N is negative The connection diagram of three phase is shown as follow The connection diagram of spl...

Страница 26: ...the red and black test cables through the output terminals cover of the power system and install the cover 5 Optional According to the actual situation of DUT connect the grounding terminal on the re...

Страница 27: ...ltage of power system and the actual voltage of battery resulting in inaccurate measurement The connection diagram and steps of remote measurement are as follows The connection diagram of single phase...

Страница 28: ...rent that one test cable can withstand fails to meet the rated current use multiple pieces of red and black test cables For example the maximum current is 1 200A then 4 pieces of 360A red and black ca...

Страница 29: ...tive grounding Do not use terminal board without protective grounding Do not use an extended power cord without protective grounding otherwise the protection function will fail Ensure that the input e...

Страница 30: ...POWER switch to the OFF side to turn the instrument off When it is turned off the instrument interface will prompt power down and the instrument will store the setting information before shutdown in...

Страница 31: ...NOTE After entering the menu interface the knob can also be used to scroll pages to view menu items 3 4 Output On Off Control The On Off key is used to turn the output on or off under normal circumst...

Страница 32: ...t the power supply phase mode Single Phase Under the single phase the power supply works as a single phase power supply the output mode can be set to AC DC ACDC DCAC Three Phase Under the three phase...

Страница 33: ...Mode the instrument will simulate AC power supply The default set of IT7800 series power supply is AC Mode Set the output parameters of the power supply in the main interface including the output vol...

Страница 34: ...the configure menu Vac you can set the Vac under the main interface or under the config interface DC set the DC component under the config interface The setting range is 10 of rated voltage NOTE The A...

Страница 35: ...C AC mode Set the Vdc in the main interface and set the Vac in the configure menu Vdc you can set the Vdc under the main interface or under the config interface Ripple control set the wave Vac compone...

Страница 36: ...rent at a fixed power Single power supply can meet different DUT tests with high voltage low current or high current low voltage at the same time because the output of voltage and current is controlle...

Страница 37: ...value power supply works in current limit mode and output voltage will be reduce When the actual power value is higher than the setting power limit value power supply works in power limit mode and ou...

Страница 38: ...top freq Set the ending frequency Step freq Set the step frequency Step time Set the step time Mode Set the sweep mode Time Time Sweep Mode Trig Trigger mode Priority Priority setup Volt Priority Freq...

Страница 39: ...ace to stop the Sweep function 4 8 Power Amplifier The IT7800 series regenerative grid simulator can be used as a power amplifier to complete power hardware in the loop PHIL applications for microgrid...

Страница 40: ...ion method of polyphase function Connecting the IO 4 pin Connect the IO 4 pins of two IT7800 power supplies One IT7800 outputs synchronization signals to the other IT7800 The second power supply runs...

Страница 41: ...On the Source Settings menu select External Lock Frequency Control External Lock frequency control Set the external Lock frequency control mode Status Set the Lock frequency ON OFF state Phase Delay S...

Страница 42: ...s Enable or disable this function R Set the output resistance L Set the output inductance Off mode Set the output turn off mode Open Z Open circuit mode High Z High impedance mode Short Short circuit...

Страница 43: ...board sound Off Buzzer on On Buzzer off Brightness Set the screen brightness 1 100 Set the screen brightness level Factory default settings Select whether to reset the factory default settings or not...

Страница 44: ...port TMC usbtmc USB TMC protocol LAN config LAN communication interface Mode DHCP automatically configure the address of the instrument Manual manually configure the address of the instrument by enter...

Страница 45: ...IO 2 PS Clear Function setting of pin 2 Fun PS Clear Input Output Digital IO 3 PS Function setting of pin 3 Fun PS Input Output Digital IO 4 SYNC Function setting of pin 4 Fun SYNC Input Output Dir I...

Страница 46: ...rn to main interface Set the Power on State This parameter determines the state of the AC source after power up The procedures to set the menu item are as follows 1 Press the General under the system...

Страница 47: ...used to set the communication information between instrument and PC The standard communication interfaces for IT7800 series power supply are USB LAN and CAN You can also select the non standard inter...

Страница 48: ...ode Voltage DC Output voltage of DC range from 0 full scale Slew Rate Slope range from 0 5000V ms Ripple control Wave Select the output wave type Vac output voltage of AC range from 0 10 of full scale...

Страница 49: ...full scale Slew Rate Slope range from 0 5000V ms Frequency Freq output frequency range from 16 2400Hz Slew Rate slope range from 0 001 5000Hz ms Waveform Selece and edit the output wave type For deta...

Страница 50: ...een locked the indicator light Lock will display on the LCD In addition when keyboard are locked all buttons can t be used except Local key Press Shift 2 Lock once again will relieve key lock function...

Страница 51: ...4 Save to save the parameters Pressthe composite keys Shift 5 Recall to recall the parameters SCPI commands SAV and RCL Save Operation The save operation procedures are as follows 1 Press the composi...

Страница 52: ...tion point Time delay time of protection Voltage peak range Voltage limit setting V limit Maximum voltage setting Power limit range Power limit setting P limit Power limit point Time delay time of pro...

Страница 53: ...press Enter 3 Set the protection RMS Level the delay time and protection type in sequence and press Enter to confirm Clear RMS OCP Protection When RMS OCP protection occurs the instrument responds as...

Страница 54: ...press Enter 3 Set the V limit and the V limit in sequence and press Enter to confirm 5 6 4 Over temperature protection OTP When the temperature of the power component in the power supply exceeds 95 C...

Страница 55: ...rallel mode All features are set up from the master unit This chapter takes three instruments with operation panel as an example to describe how to parallelize the single units and how to return from...

Страница 56: ...Refer to the blue wiring legend in the figure connect the System Bus i e the fiber outer ring interfaces TX and RX for fiber optic communication between the master and slaves Set the Parallel Mode 1...

Страница 57: ...ts to single mode 2 Press the composite keys Shift System on the front panel to enter the system menu 3 Select General menu 4 Set the Parallel Mode set them to single 5 Power off the three instruments...

Страница 58: ...signal Digital IO 3 Input Output Protection state indicator Level signal Digital IO 4 Input Output synchronous control Pulse signal Digital IO 5 Input Output OnOff status indicator Level signal Digita...

Страница 59: ...tate of the external signal Signal Revert Select Invert or not under the IO Settings menu If setting to OFF it means the default level will be valid If setting to ON it means the valid signal is rever...

Страница 60: ...der default setting Not Invert pin 3 outputs high level when the instrument is under protection pin 3 outputs low level When pin3 is set to Invert the output level is completely opposite Digital IO 4...

Страница 61: ...of the IT7800 series This function is not standard with the instrument and is optional for users When the interface card selected by the user is RS232 Analog interface IT E177 the analog interface can...

Страница 62: ...state Mode AM Adjust the amplitude Amplifier Monitor the real time output values Monitor phase When under 3 phase mode select the phase to be monitor Invalid under single phase mode U ratio Set the r...

Страница 63: ...function can be realized The operation method is as follows Connecting the analog interface different interface function are different please refer to pins description as above Voltage and current mo...

Страница 64: ...System Related Functions Copyright ITECH Electronic Co Ltd 62...

Страница 65: ...rface Different modes display different interfaces but the displayed measurement parameters are the same Take AC single phase mode as an example the measurement interface is shown in the figure below...

Страница 66: ...rent modes display different interfaces the Oscilloscope interface is shown in the figure below Description of keys on the waveform display interface Voltage Current Time Adjust voltage current time b...

Страница 67: ...the horizontal calibration knob After collection is stopped the collected data can be amplified by adjusting the horizontal calibration knob Trigger delay If the soft key Function is pressed and Trig...

Страница 68: ...y Function is pressed and Trig Level is selected you can rotate the knob to adjust the trigger level In this case the trigger level can be changed by rotating the knob and you can observe trigger leve...

Страница 69: ...nic parameters Under single phase mode display single harmonic distortion factor and phase of the single phase Under three phase mode display the single harmonic distortion factor and corresponding ph...

Страница 70: ...ta of single harmonic data Introduction to vector interface When vector mode is selected in the harmonic measurement mode to enter the vector measurement interface as shown in the figure below 6 4 Rec...

Страница 71: ...t Save control exporting all of present data to U disk Real time storage Record data in real time Meter sample Set the sampling interval Hold On Hold Off Pause screen data refresh for data observation...

Страница 72: ...e through self define function see 8 3 Self defined Waveform Function for details and combine the waveform files into a List file based on required order Meanwhile the user can set the starting steps...

Страница 73: ...r operation Normal return to normal after operation Last keep the last waveform output unchanged after operation No step number of list Click the numer you can operate such as copy paste cut insert de...

Страница 74: ...can be selected Step jump Method of step jumps to next step Time when the time is out jumps to next step Trig reveive a trigger signal jumps to next step Phase jumps to next step at this phase Trig o...

Страница 75: ...in other formats i e csv 3 Open the List02 csv document and edit the List Set every step of the List and corresponding parameters and save the document in the USB disk List import file formats under...

Страница 76: ...ly turn off and when using this function dimming function is turned off Operating steps 1 Press Shift Surge Sag on the front panel to enter the List function configuration interface 2 Set the voltage...

Страница 77: ...he three phases executes surge trap at the same time Specify Phase Each of the three phases executes surge trap at the specified phase displays under 3 phase mode Value select Value select Percent Set...

Страница 78: ...t in 30 waveforms and user defined waveforms The interface is shown below DST wave Select waveforms which built into the instrument by default When the waveform name is selected the parameters and wav...

Страница 79: ...amplitude of all harmonics f displaying harmonics in the form of percentage to the fundamental voltage Delete select a row and click Delete Open import Thd wave data Save Save the THD wave Back retur...

Страница 80: ...user defined file name Origin Symmetry To select the waveform data type you can select 512 origin symm 512 origin asymm 1024 points Open import waveform data Save Save the user define wave Delete sele...

Страница 81: ...age VLN 2 0 350 V Output current RMS 1phase 30 A Crest Factor 3 Peak 1phase 90 A Output power Max Power 1phase 3k VA Voltage setting Range 1phase 0 350 V Resolution 0 01 V Accuracy 16Hz 500Hz 0 1 0 1...

Страница 82: ...al 2 V s with full scale programmed voltage step Output Isolation 550Va c Measurement parameter Voltage RMS Resolution 0 01 V Accuracy DC 16Hz 500Hz 0 1 0 1 F S 500 01Hz 2 4kHz 0 1 0 2 kHz F S emperat...

Страница 83: ...ne current RMS 20 A Apparent power 5 8 kVA Frequency 45 65 Hz Power factor typ 0 98 Output parameters AC Output Output voltage VLN 3 0 350 V Output current RMS 1phase 30 A Crest Factor 3 Peak 1phase 9...

Страница 84: ...tion 0 001 kW Accuracy DC 16 500Hz 0 4 0 4 F S 500 01Hz 2 4kHz 0 4 0 8 kHz F S Harmonic measurement Max 50 60Hz up to 50 order s Others Efficiency typ 88 Protection OVP OCP OPP OTP FAN Sense Working 0...

Страница 85: ...mperature coefficient 100ppm F S AC Output DC Voltage Offset typ 0 02 Vdc Current Limit setting Range RMS 1phase 90 A RMS 3phase multichannel reverse 30 A Resolution 0 01 A Accuracy DC 16Hz 150Hz 0 1...

Страница 86: ...Temperature coefficient 200ppm F S Peak current Resolution 0 01 A Accuracy DC 16Hz 500Hz 0 4 0 6 F S 500 01Hz 2 4kHz 0 4 1 2 kHz F S Output power Resolution 0 001 kW Accuracy DC 16Hz 500Hz 0 4 0 4 F...

Страница 87: ...Range 1phase 3phase multichannel 0 350 V reverse 0 700 V Resolution 0 01 V Accuracy 16Hz 500Hz 0 1 0 1 F S 500 01Hz 2 4kHz 0 1 0 2 kHz F S Temperature coefficient 100ppm F S AC Output DC Voltage Offs...

Страница 88: ...150Hz 0 1 0 2 F S 150 01Hz 500Hz 0 2 0 3 F S 500 01Hz 2 4kHz 0 3 0 6 kHz F S Temperature coefficient 200ppm F S Peak current Resolution 0 01 A Accuracy DC 16Hz 500Hz 0 4 0 6 F S 500 01Hz 2 4kHz 0 4 1...

Страница 89: ...ge setting Range 1phase 3phase multichannel 0 350 V reverse 0 700 V Resolution 0 01 V Accuracy 16Hz 500Hz 0 1 0 1 F S 500 01Hz 2 4kHz 0 1 0 2 kHz F S Temperature coefficient 100ppm F S AC Output DC Vo...

Страница 90: ...ith full scale programmed voltage step Output Isolation 550Va c Measurement parameter Voltage RMS Resolution 0 01 V Accuracy DC 16Hz 500Hz 0 1 0 1 F S 500 01Hz 2 4kHz 0 1 0 2 kHz F S emperature coeffi...

Страница 91: ...factor typ 0 98 Output parameters Output voltage VLN 2 0 350 V VLL 3phase 0 606 V VLL reverse 0 700 V Output current RMS 1phase 90 A Crest Factor 3 Peak 1phase 270 A RMS 3phase multichannel reverse 30...

Страница 92: ...MS 0 4 V Dynamic response 4 typ 200 us Voltage Slew Rate Typical 2 V s with full scale programmed voltage step Output Isolation 550Vac Measurement parameter Voltage RMS Resolution 0 01 V Accuracy DC 1...

Страница 93: ...out within 1 4K the maximum output voltage at 2KHz is 250 76Vrms and 2 4KHz is 208 97Vrms 3 When loopSpeed Low is low it can better complied DUT s characteristics When LoopSpeed is High the dynamic r...

Страница 94: ...V 3 phase AC input power is 60 of the rated 2 According to the output frequency the output voltage will be reduced the rated voltage can be out within 1 4K the maximum output voltage at 2KHz is 253VRM...

Страница 95: ...nd PC All functions are programmable over the USB The USB488 interface capabilities are described below The interface is 488 2 USB488 interface The interface accepts REN_CONTROL GO_TO_LOCAL and LOCAL_...

Страница 96: ...hat of the PC and the IP address should be at the same network segment with the PC s IP address When the instrument and computer are connected to the router an independent IP address must be assigned...

Страница 97: ...press Enter 9 3 CAN Interface The CAN interface is located on the rear panel of the instrument and is con nected to the computer using a CAN communication cable Definition of CAN Pins The definition o...

Страница 98: ...natingresistance The connection diagram of a single device is as below The connection diagram of multiple devices is as below When multiple devices are connected it is recommended to connect the pin 8...

Страница 99: ...t 3 Connect the instrument with the computer via the GPIB cable After the con nection is successful turn on the power switch of the instrument 4 Press the composite keys Shift System on the front pane...

Страница 100: ...Select Communication and press Enter 6 Select RS232 and press Enter 7 Set the relevant communication parameters in turn and press Enter RS 232 Troubleshooting If you meet some problems when communicat...

Страница 101: ...status 9 7 Demo Software Introduction IT7800 series AC DC power supply provides the following computer control software convenient for users to achieve different test control The standard version of t...

Страница 102: ...A 1 2m Y type terminals A pair of red and black test line IT E30320 YY 30A 2m Y type terminals A pair of red and black test line IT E30615 OO 60A 1 5m Ring terminals A pair of red and black test line...

Страница 103: ...tact US Thank you for purchasing ITECH products If you have any doubt about this product please contact us as follow 1 Please refer to the user s manual in website 2 Visit ITECH website www itechate c...

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