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USER MANUAL of HPC-250HT

PE07019-022-B

Page 55 of 69

Parameter

Range

Grid Frequency Limit (Positive
Direction)

F

nom

+0.1Hz – F

nom

+2.5Hz

Grid Frequency Limit (Negative
Direction)

F

nom

-0.1Hz – F

nom

-2.5Hz

Wait Time

0 - 1800000

COM Speed

9600, 19200, 38400

Turn ratio and CLK Nr

Factory Settings, can not be
modified

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53
54
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56
57
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Summary of Contents for HPC-250HT

Page 1: ...HPC 250HT Photovoltaic Inverter User Manual ...

Page 2: ...0 Offline 22 4 HPC 250HT CONTROL OPERATION 23 4 1 HPC 250HT CONTROL MENU 23 4 2 OVERVIEW OF THE MENU 25 4 2 1 Start Brief Description 25 4 2 2 Online Info Brief Description 26 4 2 3 Fault Handling Brief Description 27 4 2 4 Log Brief Description 28 4 2 5 System Brief Description 29 4 2 6 Email Brief Description 30 4 2 7 Operator Brief Description 31 4 2 8 Setting 1 Brief Description 32 4 2 9 Setti...

Page 3: ...L ADDRESSES 57 6 2 SELECTING THE REPORT TYPES TO SEND 59 6 3 SENDING A TEST EMAIL 60 7 FAULTS 63 7 1 FAULT DIAGNOSTICS 63 7 1 1 Types of Faults 63 7 1 1 1 Emergencies 63 7 1 1 2 Alarms 64 7 1 1 3 Trips 64 7 1 1 4 Failure handling 67 7 2 CONFIRMING FAULTS ON THE HPC 250HT USER INTERFACE 68 8 CONTACT 69 ...

Page 4: ...d for HPC 250HT installers and operators in installing operating maintenance and troubleshooting of the HPC 250HT Photovoltaic Inverter It serves as a rule regarding the operation of the HPC 250HT and User Interface and applies for UI software version 1 0 This manual was written with the greatest possible care However discrepancies cannot be excluded ...

Page 5: ...found in the HPC 250HT Installation Guide must also be taken into account Damage to the HPC 250HT may engender lethal danger due to fire or electric shock Be sure to only use HPC 250HT Photovoltaic Inverter if it is secure to do so Be sure to only use HPC 250HT Photovoltaic Inverter if damage is obviously absent Visually examine the HPC 250HT at regular intervals Be sure that all of the external s...

Page 6: ...ages and currents ready to be fed back to the utility grid 3 1 Identifying the HPC 250HT 3 2 The HPC 250HT s Control Elements By analyzing the below depiction the user will be able to identify the location of the HPC 250HT s control elements ID Description A AC Side Rotary Handle Circuit Breaker Q2 B User Interface C D Trip Red and Alarm Yellow Light Indicators H1 H2 E Start Stop Key Operated Spri...

Page 7: ...e to the HPC 250HT Only use the Rotary handle operating mechanism if the HPC 250HT has been set to Offline mode using the Start Stop key operated switch The HPC 250HT connects to the utility grid by means of an AC Circuit Breaker If manually turned to the Off position the circuit breaker isolates the AC contactor K1 AC EMC filter A12 transformer T1 LC filter capacitor C1 18 and inductor T2 and the...

Page 8: ...ltage level determined by this network of solar panels Excluding the MCU A23 cabinet thermostats B5 B6 transformer thermostat B1 inductor thermostats B2 B3 and RS485 Repeater A25 power supply all auxiliary power supply is turned off by the operation of the Emergency button Always bear in mind that not all of the internal components of the HPC 250HT cabinet are isolated from their power supply the ...

Page 9: ... and the system state changes according to and the steps of this shut down sequence depend on the actual state of the system at the moment of the stop request Each time the auxiliary power supply was connected to the MCU of the HPC 250HT the system waits for additional 5 minutes before initiating an automatic start up sequence This waiting time can be interrupted by turning the Start Stop Key oper...

Page 10: ... using the UI residing at the front of the AC side cabinet E2 Conveniently situated actions contain Monitoring of System Operation Supervising Inverter Operation Displaying Online Measurement Data Adjustment of Parameters Displaying and Acknowledgement of Fault events Modification and Test of Communication Parameters Observing operation of String Boxes connected Supervising and modifying String Bo...

Page 11: ... ALARM event did occur during operation of the HPC 250HT The system does not switch itself off Red A TRIP or EMERGENCY event did occur during operation of the HPC 250HT 3 3 Operating Modes OFFLINE AUTOMATIC STARTUP WAITING AFTER GRID FAILURE CONNECTING TO SOLAR ARRAYS WAITING AFTER LOW POWER STOP WAITING AFTER GRID FAILURE TESTING OF STRING VOLTAGE GRID VOLTAGE AND FREQUENCY TEST CONNECTING TO GRI...

Page 12: ...he auxiliary power supply to the MCU of the HPC 250HT The system is not detecting trip utility network related trip events but emergency and warning events are redirected to the MCU The remaining time of the initial 5 minutes is displayed in the Status bar on the User interface After 5 minutes the system is leaving this state automatically and steps into Conencting to Solar Arrays state The Automa...

Page 13: ...g after Grid Failure notification The system can get into this state From Automatic Startup state by holding the Start Stop Key Operated Spring Return Switch in Start or Stop position for more than three seconds From Offline Mode if the previously defined stability conditions for the utility network are not met From Connecting to Solar Arrays state if the previously defined stability conditions fo...

Page 14: ...om Waiting after Low Power Stop state if the time set in the Wait Time textbox on the Setting 1 tab page has passed From Waiting after Grid Failure state if the necessary waiting time after the grid failure has passed From Connecting to Solar Arrays state after successful connection to the solar arrays The system can leave this state If the measured DC voltage level is above the voltage level set ...

Page 15: ...the User Interface Modifiable grid parameters are nominal voltage range of voltage level deviation from nominal value in two directions separately frequency range of frequency deviation from nominal value in two directions separately The system can get into this state From Testing of String Voltage state if the start conditions defined on the Setting 1 tab page have been met The system can leave t...

Page 16: ...e given time interval has passed after all the grid stability criterions have been met thus the grid is stable for the given time interval of 5 minutes the system proceeds to the Connecting to Solar Arrays state The system can leave this state The system switches to Testing of String Voltage state if the utility grid operation conditions set on the Setting 2 tab page are met and the HPC 250HT did ...

Page 17: ...his state From the Grid Voltage and Frequency Test state if the utility network parameters are within the ranges defined on the Setting 2 tab page The system can leave this state If the measured input voltage level of the HPC 250HT during the String Voltage Test is above a factory set safety value the AC Contactor K1 turns ON the system connects to the utility network and system state switches to ...

Page 18: ...n the system automatically performs one MPP scanning cycle After determining the current optimal power point the HPC 250HT is able to Reside in grid connected state and deliver power to the utility according to the previously found maximum power point MPP OFF Search for new maximum power points at time intervals defined by Scan Delay seconds on the Online Info tab page MPP Track the last found opt...

Page 19: ...eave this state By holding the Start Stop Key Operated Spring Return Switch S1 in Stop condition for more than three seconds the system switches to Shut Down state If the measured DC power falls below the value set in Stop Power kW for an interval defined in Stop Time seconds both located on the Settings tab page the system switches to Shut Down state In this case however a time interval equivalen...

Page 20: ...utdown process was initiated meaning that the input DC power of the HPC250 HT is lower than the threshold value set in the Stop Power kW textbox for the time interval set in the Stop Time seconds textbox on the Settings tab page The system can leave this state And depending on the state of the system in the moment of an incoming shut down request the system automatically jumps over to one of the f...

Page 21: ... Power kW textbox for the time interval set in the Stop Time seconds textbox on the Settings tab page From Shut Down state after the Start Stop Key Operated Spring return Switch S1 is operated and held in the Stop position for more than three seconds in the following system states o Connecting to Grid test of String Voltage o Feeding to the Grid The system can leave this state In case of a regular...

Page 22: ...S1 is turned to Start position for at least three seconds to maneuver the HPC 250HT into Wait mode The system can get into this state By holding the Start Stop Key Operated Spring Return S1 switch in Stop position for more than three seconds The system can leave this state By holding the Start Stop Key Operated Spring Return S1 Switch in Start position for more than three seconds ...

Page 23: ...f less than three seconds The backlight illumination of the HPC 250HT User Interface will stay enabled for 30 minutes counting from the last actuation of the Start Stop Key Operated Spring Return Switch 4 1 HPC 250HT Control Menu After connecting the auxiliary power supply to the HPC 250HT the system performs a first main initialization The termination of the main initialization requires about one...

Page 24: ...splayed on the picture below Identifier Description A Tab Page Selector B Status Bar C Progress Bar The Tab Page Selector and the Progress Bar are visible under every circumstances the Status Bar is only visible in the following five of the altogether nine tab pages Tab Page Status Bar Visibility Start Visible Online info Visible Fault Handling Not Visible Log Not Visible System Visible Tab Page S...

Page 25: ...tor To choose and switch between the menu pages one has to tap the name of the menu on the tab page selector and the display automatically changes to the selected menu screen 4 2 1 Start Brief Description Menu Page Category System information Start Status bar System Time System Date System Status Operator Status Device Info Device Serial Number User Interface Version Number COM Speed Communication...

Page 26: ... Page Category System information Online Info Status bar System Time System Date System Status Operator Status Online Info Total Energy Grid Power Grid Voltage Grid Current PV Power PV Voltage PV Current Choke Temperature Bridge Temperature Maximum Power Point Start MPP Scan Scan Delay MPP Mode ...

Page 27: ...7 of 69 4 2 3 Fault Handling Brief Description Menu Page Category System information Fault Handling Emergency Emergency Information Emergency Acknowledgement Trip Trip Information Trip Acknowledgement Alarm Alarm Information Alarm Acknowledgement ...

Page 28: ...PE07019 022 B Page 28 of 69 4 2 4 Log Brief Description Menu Page Category System information Log Fault List Show Fault list content Start Stop List Show Start Stop list content Tech Event List Show Technical Event list content ...

Page 29: ... System information System Status bar System Date System Status Operator Status System Information On Time Last Start Time System Started Emergency Counter Trip Counter Alarm Counter PVC Communication Report Sending Enable Disable Start Stop Email Report Sending Enable Disable Fault Email Report Sending ...

Page 30: ... Page 30 of 69 4 2 6 Email Brief Description Menu Page Category System information Email Email Settings Email Sender Email Receiver Email Server IP Email Server Port Test Email Send Test Email Email State Email Progress Email Sending State ...

Page 31: ... Test Turn ON DC Circuit Breaker Q1 Turn OFF DC Circuit Breaker Q1 Turn ON OFF Red and Yellow Indicator Lights Control Power ON Control Power OFF AC Contactor ON K1 AC Contactor OFF K1 Turn ON OFF Inverter Fans Turn ON OFF Cabinet Fans Operator Login Logout Operator Login Logout Button Show Hide Input Panel Button Add Operator Password Button ...

Page 32: ...2 B Page 32 of 69 4 2 8 Setting 1 Brief Description Menu Page Category System information Setting 1 Change Time and Date New System Year Month Date Hour Minute Start Stop Condition Start Voltage Start Time Stop Power Stop Time Wait Time ...

Page 33: ... System information Test Grid Nominal Values Nominal Grid Voltage Nominal Grid Frequency Grid Voltage Limits Maximal Grid Voltage Minimal Grid Voltage Grid Frequency Limits Fmax Fnom Fnom Fmin Maximum Output Power Output Power Limitaton Turn Ratio and LCK Nr Factory Settings can not be modified by the user ...

Page 34: ...t tab page is the first page of the HPC 250HT User Interface The Start tab page displays the HPC 250HT Serial Number and the User Interface version number together with the actual date and time system operator status and the RS485 based external data acquisition system communication speed setting ...

Page 35: ...Start MPP Scan button the HPC 250HT initiates an MPP Scan cycle in case the actual system state does not exclude its initiation To perform an MPP Scan cycle is only possible from Feeding to the Grid system state The MPP Mode shows what kind of maximum power point detection algorithm is currently enabled for the HPC 250HT With MPP enabled the HPC 250HT performs a Maximum Power Point Tracking cycle ...

Page 36: ... ID Displayed Text MPP Algorithm 0 MPP Tracking Maximum Power Point Tracking Only the maximum power point tracking algorithm is enabled 1 MPP Maximum Power point Scanning Only the maximum power point scanning algorithm is enabled 2 MPP with Tracking Maximum Power Point Tracking and Scanning Both the maximum power point tracking and scanning algorithms are enabled 3 MPP OFF None of the maximum powe...

Page 37: ...tamp and in some cases necessary instructions ho to handle the emerged situation Emergency Trip and Alarm events all have an independent textbox for displaying fault related information Every trip and emergency event is acknowledged automatically after five minutes counting from the emergency or trip occurrence If an emergency and a trip event are present at the same time both are acknowledged aut...

Page 38: ...us as a way of environment analysis The Start Stop file is updated after every successful completion of a start or stop sequence It records the time and the date when the event occurred alongside with a short description of the happening The fault file is updated at the occurrence of an emergency a trip or an alarm event as like immediately after the acknowledgement of the fault The Technical Even...

Page 39: ...rt of utility network connection of the HPC 250HT Closing the AC Contactor K1 is meant to indicate the moment of connection thus this action of the start up process is taken to update the time displayed in the Last Start Time textbox The number appearing in the System Started textbox is increased by one every time the auxiliary power supply is connected to the HPC 250HT thus after every start of t...

Page 40: ...case of an occurred fault event or after connecting to Start and disconnecting from Stop the utility network For enabling disabling one of the email sending options tap the button on the System tab page of the User Interface corresponding to the desired action to be performed The current status of the email sending possibilities is indicated by Enabled Disabled text respectively ...

Page 41: ... 250HT cabinet in the Email Sender textbox to make sender assignation possible Internet Protocol address of the mail server necessary for sending the email and the port number used to communicate with the mail server also have to be defined in the Email Server IP and Email Port fields respectively To evaluate the new settings the Save Settings button on the Email tab page has to be tapped after mo...

Page 42: ...h a red Logged ON label as displayed in the picture below whereas the logged off status is indicated by a Logged OFF label The 9 test dedicated buttons on the bottom of the Operator tab page are active only in Offline system state They serve as an aid in regular maintenance and test related tasks Turn OFF DC CB button and Turn ON DC CB button turn on off the DC side Circuit Breaker Q1 respectively...

Page 43: ...USER MANUAL of HPC 250HT PE07019 022 B Page 43 of 69 ...

Page 44: ...et Date buttons respectively To assure system power yield at best possible rate the power feeding start and stop conditions can be set individually for each HPC 250HT on the Settings tab page Before grid connection the HPC 250HT is continuously monitoring the input voltage determined by the connected network of solar arrays The user can define the level of measured input voltage at which a system ...

Page 45: ...s disconnection form the utility network This power value can be set between 2 and 20 in the Stop Power kW textbox This calculated power value has to be stable for a user definable time interval which can be set between 30 seconds and 2 minutes by writing a value between 30 and 120 in the Stop Time s textbox User can define the minimum time how long the HPC 25HT has to wait after a regular low pow...

Page 46: ...etween 90 and 120 minimum grid voltage can be set between 80 and 115 of the nominal grid voltage value in the Maximum Grid Voltage and Minimum Grid Voltage textboxes respectively The allowed deviation from the nominal frequency can be set as distance in frequency between 0 1 and 2 5 Hz in both positive and negative frequency deviation directions in the Fmax Fnom and Fnom Fmin textboxes respectivel...

Page 47: ...l Voltage and Frequency Change Utility Network Voltage and Frequency Tolerances Perform Device Test Actions Log in can be performed by means of an Operator Password To assign new operator password to operating personal is only possible in Operator Logged On state Note that improperly modified parameters can partly or completely impair the functionality of the HPC 250HT According to the logged on s...

Page 48: ...blink 4 After typing a valid operator password into the textbox and tapping the Operator Login Logout button the Operator status label changes to Logged ON and one is allowed to perform the intended parameter modifications or fault acknowledgements Note that the Input Panel disappears automatically after tapping the Operator Login Logout button 4 3 2 Add Operator Password 1 To add a new operator p...

Page 49: ...rator Password input box appears Type in the new operator password you want to assign system access privileges to 3 If the new operator password is already assigned in the system a message box appears and you have to repeat the procedure with another operator password ...

Page 50: ...g OFF procedure By tapping the Operator Login Logout button in Logged ON status the operator status changes from Logged ON to Logged OFF and parameter modification and fault acknowledge possibilities are no more available until a new Log ON procedure is performed ...

Page 51: ...ange button next to the time or date element you want to modify 3 Type the new value in the appearing input box 4 Tap the OK button to make the adjustment tap the Cancel button to discard 5 After setting the new values for the elements of time and or date tap the Set Time or Set Date Button to finalize the modifications ...

Page 52: ...em parameters String box parameters 5 1 Description of the Parameter Functions Parameter Description of the function COM Speed Communication speed of the external data acquisition system Scan Delay The HPC 250HT initiates an MPP Scan cycle every Scan Delay interval MPP Mode Sets one of four MPP modes available 0 MPP Tracking 1 MPP 2 MPPS with Tracking 3 MPP OFF Start Stop Email Report Sending Enab...

Page 53: ...HT identifier to appear in the sent emails Email Server IP The IP address of the mail server used for sending emails Email Server Port The port number in the mail server used for sending emails Nominal Grid Voltage Nominal value of utility grid voltage Nominal Grid Frequency Nominal value of utility grid frequency Maximum Grid Voltage Maximum allowed grid voltage value Minimum Grid Voltage Minimum...

Page 54: ...Start Stop Email Report Sending Enabled Disabled Fault Email Report Sending Enabled Disabled Start Voltage 450V 800V Start Time 1 600 s Stop Power 2 kW 10 kW Stop Time 1 300 s Maximum Output Power 0 100 Email Receiver 5 48 characters Email Sender 1 48 characters Email Server IP Regular IP address 7 15 characters Email Server Port 1 65535 Automatic Acknowledge Enabled Disabled Nominal Grid Voltage ...

Page 55: ...f 69 Parameter Range Grid Frequency Limit Positive Direction Fnom 0 1Hz Fnom 2 5Hz Grid Frequency Limit Negative Direction Fnom 0 1Hz Fnom 2 5Hz Wait Time 0 1800000 COM Speed 9600 19200 38400 Turn ratio and CLK Nr Factory Settings can not be modified ...

Page 56: ... present displayed value After tapping the corresponding button the parameters edit input box appears showing the actual parameter value together with the input panel as an aid for character input After modification of the values confirm the new value by tapping on the OK button or discard the changes by tapping on the Cancel button or the cross labeled button in the upper right corner f the input...

Page 57: ...ion possible Internet Protocol address of the mail server necessary for sending the email and the port number used to communicate with the mail server also have to be defined in the Email Server IP and Email Port fields respectively To evaluate the new settings the Save Settings button on the Email tab page has to be tapped after modification of email sending parameters To test the accuracy of the...

Page 58: ...USER MANUAL of HPC 250HT PE07019 022 B Page 58 of 69 ...

Page 59: ...b page of the User Interface corresponding to the desired action to be performed The current status of the email sending possibilities is indicated by Enabled Disabled text respectively On the HPC 250HT display select the System tab for modifying the sending option as desired You can read the current status at the bottom of the page next to their corresponding label and modifying buttons To change...

Page 60: ...lay select the Email tab for sending a test email Do not forget to set valid email receiver email server port number and email server IP number settings The internal steps and the result of the sending process are shown in the following three text boxes Email state Email progress Email sending state ...

Page 61: ...y Mail Server Check validity of Email Receiver No Action Waiting for email sending process to begin Busy still sending one email The previous email sending process still active Email sent successfully Notification in case of successful sending Email Progress No action Waiting for email sending process to begin Connecting to Mail Server Connecting to the mail server identified by Mail Server IP and...

Page 62: ...active Email Receiver Error Check validity of Email Receiver Mail Server Error Check validity of Email Server IP Email Port and correct cable connection Email Sender Error Check validity of Email Sender Start Value Error Please contact Service Line Subject Error Please contact Service Line Email Settings are not validated Please contact Service Line Num Value Error Please contact Service Line Atta...

Page 63: ...ncy Occurred Emergency Stop Relay released Please proceed as Follows Deactivate the emergency button using its operation key Cabinet Door E1 S4 and E1 S5 open if Q2 is closed Emergency Stop button on the front of the HPC 250HT was activated Check the doors of the E1 and E2 cabinet If they are open together with AC side Circuit Breaker Q2 closed an Emergency occurs ...

Page 64: ...tact Service Line Alarm Insulation Monitoring Device Please proceed as Follows Check the HPC 250HT to Network of Solar Arrays wiring and the DC wire are not allowed to be grounded The HPC 250HT has to be connected to an ungrounded Network of Solar Arrays The HPC 250HT indicates an Alarm event in case the insulation resistance of the connected Network of Solar Arrays measured by the HPC 250HT is be...

Page 65: ... case the insulation resistance f the connected Network of Solar Arrays measured by the HPC 250HT is below the lower threshold value Trip AC Side Overcurrent Error Code The measured current in one phase of the utility grid was above the permitted value The phase with overcurrent is identified by the Error Code Trip DC Side Overvoltage Error Code The measured DC voltage was above the permitted valu...

Page 66: ...f occurrence please contact Service Line Trip I1 Off Error 28 Cabinet internal Trip event in case of occurrence please contact Service Line Trip I2 Off Error 29 Cabinet internal Trip event in case of occurrence please contact Service Line Trip PVC Card Error Error Code Cabinet internal Trip event in case of occurrence please contact Service Line Trip DC Arc Detected 88 Cabinet internal Trip event ...

Page 67: ...ail is sent by the HPC 250HT containing a timestamp and a description of the occurred emergency In case of a trip event the system de energizes the cubicle except the HPC 250HT user interface cooling system and auxiliary power system o The red light on the front of the cabinet is illuminated H1 o The AC side main contactor is opened automatically disconnection from the AC side K1 o The DC side cir...

Page 68: ...responding textbox on the screen To acknowledge one of the occurrences tap the Emergency Acknowledge or Trip Acknowledge button Priorities are assigned to fault events The hierarchy is as follows Highest priority level Emergency Middle priority level Trip Lowest priority level Alarm You only can acknowledge a fault event if there is no higher priority fault present The successful or failed acknowl...

Page 69: ...line via phone or email message To give you a satisfying answer as convenient and as fast as possible please contain the following information in your letter or have them available at the time of your call HPC 250HT serial number Number of string boxes connected to the HPC 250HT Type and number of solar modules connected to the string boxes Displayed emergency trip or Alarm message ...

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