Page 1 OZpcs-RS40 40kW Energy Storage Power Conversion System (PCS) User’s Manual UM-0061 (603) 546-0090 11 Continental Boulevard oztekcorp.com Merrimack NH 03054...
Page 2: Notice Of Copyright
About Oztek Oztek Corp. is a proven innovator of power, control, and instrumentation solutions for the most demanding industrial applications. Oztek products include variable motor drives, grid tie inverters, frequency converters, standalone inverters, DC/DC converters, and DSP based control boards for power control applications.
Page 3: Important Safety Instructions
SAVE THESE INSTRUCTIONS This manual contains important instructions for the OZpcs-RS40 power conversion system (PCS), that shall be followed during installation and maintenance of the PCS. The OZpcs-RS40 is designed and tested according to international safety requirements, but as with all electrical and electronic equipment, certain precautions must be observed when installing and/or operating the PCS.
Page 5: Table Of Contents
Table of Contents Table of Contents 1. Introduction ........................3 Referenced Documents ....................... 3 General Information ........................3 General Safety ..........................4 Orderable Part Numbers ......................5 2. Specifications ........................5 Reliability ............................. 5 Electrical Specifications ....................... 5 Environmental Specifications (Indoor use) ................. 7 Mechanical Specifications ......................
Page 6 Table of Contents 6.4.3 Reconnect/Resume Behavior ....................36 Operating States ........................37 6.5.1 Initialize ..........................38 6.5.2 Calibrate ..........................39 6.5.3 Disabled ..........................39 6.5.4 Charge Wait ........................... 39 6.5.5 Charging ..........................39 6.5.6 Standby..........................39 6.5.7 Online ............................ 40 6.5.8 Offline ............................
Page 7 Table of Contents 7.2.11 DC Input Over-Current ......................46 7.2.12 DC Input Under-Voltage ......................46 7.2.13 Over Temperature ......................... 46 7.2.14 Saturation Error A, B, C ......................46 8. Real Time Clock (RTC) ..................... 46 Real Time Clock – Date Format ....................46 Real Time Clock –...
Page 8 11.2.21 Oztek Extension Model 64051 Registers – Configuration ............. 99 11.2.22 Oztek Extension Model 64052 Registers – Alarms .............. 100 11.2.23 Oztek Extension Model 64053 Registers – Turn-On and Resume Settings ......103 11.2.24 Oztek Extension Model 64054 Registers – Firmware Update ..........105 11.2.25 Oztek Extension Model 64055 Registers –...
Page 9 Figure 30 - PCS Control State Machine ....................... 38 Figure 31 - RTU Message Frame (PDU) Format ..................63 Figure 32 - EEI Power Factor Sign Convention .................... 78 Figure 33 - Oztek Power Studio GUI ...................... 118 Publication UM-0061...
Page 10 Table of Contents Table of Tables Table 1 - Revision History ..........................1 Table 2 - Document Acronyms ........................3 Table 3 - Compatible Compression Lugs (DC) ..................... 17 Table 4 - Compatible Compression Lugs (AC) ..................... 18 Table 5 - LED Functions - Normal Operation ....................20 Table 6 - LED Functions - Bootloader Operation ..................
Page 11: Table 1 - Revision History
• Removed Volt/VAR and Ride Through Curve Name Registers • Reduced Number of Ride Through Curves from 3 to 1 • Replaced Ride Through Action Registers from Oztek Extension Model 64051 with Momentary Cessation Curves using new SunSpec Models 139, 140, 143, 144 •...
Page 12 • Made Frequency Ride Through duration scale factor programmable. 6/14/2019 Hodgdon • Fixed Volt-VAR Curve 3 defaults for least aggressive case. • Updated Volt-Watt implementation per UL testing. • Added Certification Information. • Fixed typo errors throughout. 10/17/209 Zendzian • Updated Power-On Response Time to reflect latest DC pre- charge hardware.
Page 13: Introduction
This document is intended to provide detailed specifications and instructions on how to properly install and operate an Oztek 40kW Energy Storage Power Conversion System (PCS). To provide for safe installation and operation of the equipment, please read the safety guidelines at the beginning of this manual and follow the procedures outlined before connecting power to the PCS.
Page 14: General Safety
Introduction Acronym Full Text Equivalent No Operation Out of Tolerance Power Conversion System Relative Humidity Root Mean Square Real Time Clock Remote Terminal Unit Static Transfer Switch Total Harmonic Distortion General Safety DANGER Power inverters are typically connected to hazardous voltages. When servicing an inverter, there may be exposed terminals at or above line potential, as well as residual charge in place for some time after the removal of the input source.
Page 15: Orderable Part Numbers
Orderable Part Numbers The OZpcs-RS40 is currently available with two airflow options, either front to back, or back to front. The options are identified using the orderable part number shown below.
Page 16 Specifications Power Command Resolution 1% rated CEC Efficiency 96.9% Peak Efficiency 98.2% Standby Power 29W, Power draw from DC input when in Standby state Inrush Current <1A, internal soft start provided DC Input DC Input Voltage Range 330 to 820 V, Derated below 550 V, see section 2.8 DC Input Current 75 A maximum (operating) The DC input does not include fuse protection.
Page 17: Environmental Specifications (Indoor Use)
Specifications 585 V (line to line): The PCS will disconnect from the Max AC Connect Voltage AC interface at voltages greater than this value. Discrete Outputs Voltage (max) 32 V Current (max) 5 mA Discrete Inputs Voltage (min) – ESTOP, DIN 3.5 V Voltage (min) –...
Page 18: Mechanical Dimensions
Specifications Parameter Maximum Error DC Current Power Power Factor Frequency 0.1 Hz Time 0.1 sec Mechanical Dimensions Figure 2 - Mechanical Outline, Front View Figure 3 - Mechanical Outline - Side View 40kW Energy Storage PCS Hardware User’s Manual...
Page 19: Figure 4 - Mechanical Outline - Rear View
Specifications Figure 4 - Mechanical Outline - Rear View Figure 5 - Mechanical Outline - Top View Publication UM-0061...
Page 20: Temperature Based Power Derating
Specifications Temperature Based Power Derating Figure 6 - Temperature Derating Curve – “F” Option Figure 7 - Temperature Derating Curve – “B” Option 40kW Energy Storage PCS Hardware User’s Manual...
Page 21: Dc Input Voltage Based Power Derating
Specifications DC Input Voltage Based Power Derating Output Power vs DC Input Voltage 110% 100% DC Input Voltage (V) Discharge Charge Figure 8 - DC Input Voltage Derating Curve AC Voltage Based Power Derating The PCS will limit the AC current to its max rating. The resulting output power at various line voltages is given in the following figure.
Page 22: Elevation Based Power Derating
Specifications 2.10 Elevation Based Power Derating Figure 10 - Elevation Derating Curves – “F” option Figure 11 - Elevation Derating Curves – “B” option 40kW Energy Storage PCS Hardware User’s Manual...
Page 23: Maintenance
2.11 Maintenance The PCS has been designed to require no maintenance over its operating life. 2.12 Regulatory Specifications 2.12.1 Listings (See Appendix A) UL1741 Inverters, Converters, Controllers and Interconnection System Equipment for Use with Distributed Energy Resources UL1741-SA CA Rule 21 CSA C22.2 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use.
Page 24: Unpacking And Inspection
Immediately seek assistance from the freight carrier for any visible signs that the packaging or product has been damaged. If it is necessary to send the OZpcs-RS40 back, use the original packaging.
Page 25: Installation
CAUTION Do not carry or lift the OZpcs-RS40 by the mounting ears. The mounting ears are intended as pull handles to slide the unit into or out of a rack. Attempting to lift or carry the unit with these handles may result in injury to the handler and damage to the unit.
Page 26: Electrical
All installations must conform with the laws, regulations, codes and standards applicable in the jurisdiction of installation. Oztek assumes no responsibility for the compliance or noncompliance with such laws or codes in connection with the installation of the PCS.
Page 27: Dc Connection
Risk of death due to electric shock from touching a DC conductor. Do not touch the conductors. CAUTION The OZpcs-RS40 does not include overcurrent protection on the DC input. The customer is required to provide adequate overcurrent protection external to the PCS. CAUTION The DC inputs are intended to float and must not be referenced to earth ground.
Page 28: Ac Connection
Installation Wire Size Manufacturer Panduit LCAN1-14-E Panduit LCAN2-14-Q 3, 4 Panduit LCAN4-14-L 3. Turn off the DC source and secure against turning on again. 4. Connect the negative and positive cables to the DC terminal block as shown in Figure 14. Connections should be tightened to a specified torque of 2.8 Nm (25 in-lb) +/- 5%.
Page 29: Low Voltage I/O
Installation 4. Connect the ground cable as well as the three utility phase cables to the AC terminal block as shown in Figure 15. The neutral connection (N) is provided for future 4-wire grid-forming or standalone operation – this terminal should be left unconnected for grid-tie applications.
Page 30: Configuration
4.2.4 Configuration The OZpcs-RS40 is shipped from the factory configured for a nominal line voltage of 480 V a frequency of 60 Hz. If the OZpcs-RS40 is intended to be used with line voltages other than 480 V , 60Hz, the user must configure REG 40168 – Voltage at the PCC and REG 40185 –...
Page 31: Low Voltage I/O
Interface Table 6 - LED Functions - Bootloader Operation Color Label Location Meaning Green POWER ON Front Panel Blinking: Bootloader is running Yellow STANDBY Front Panel On Solid: PCS is connected to the Host Yellow OPERATING Front Panel Rapid Blink: Data exchange with Host in progress FAULT Front Panel On Solid: Bootloader error, e.g.
Page 32: Inputs
Interface CAUTION The RS-485 data bus must be terminated for reliable communications. Do NOT terminate every device on the bus, as this will degrade the signals and overload the transceivers. Only the devices physically located at the end of the wires should have termination. 5 10 Master Controller...
Page 33: Bias On/Off
Interface 5.2.2.2 Bias On/Off The Bias On/Off input is used to enable the PCS’s bias supply. As long as this opto-isolated input is asserted by applying 24 V , the bias supply remains operating. When the input is deasserted, the bias supply will hold up for approximately 2.5 sec to allow the microprocessor to finish its housekeeping tasks, after which the bias supply is powered off.
Page 34: Operation
Operation Operation Communication and I/O Bias Supply Controller Precharge Filter Filter Input Output Precharge Figure 21 - System Block Diagram Bias Power The PCS incorporates an internal bias supply that derives the necessary working voltages from the high voltage DC input. The bias supply is controlled with the “Bias On/Off” discrete input. When this input is asserted, the bias supply is enabled and drawing power from the DC input.
Page 35: Real Power Control
Operation Inverter Grid Load Inverter Battery Load Inverter Figure 22 - Grid Tie Mode System Block Diagram 6.2.1 Real Power Control The real power is controlled by writing the desired power, as a percentage of the maximum output power, REG 40167, to REG 40248 – Power Setpoint, followed by writing a “1” to REG 40252 –...
Page 36: Volt/Var Control
Operation 6.2.3 Volt/VAR Control To support grid voltage stabilization during over-voltage and under-voltage conditions, the PCS may be optionally configured to automatically generate reactive power commands based on the grid voltage measured at the PCS terminals. This behavior is implemented using a configurable array of Volt-VAR points that when combined, define a series of linear, piece-wise curves that create the desired Volt-VAR curve.
Page 37: Volt/Watt Control
SunSpec Model 132, which is summarized in section 11.2.11. The P curves are defined using the registers found in Oztek Extension Model 64056, which is summarized in section 11.2.26. Figure 24 illustrates a basic Volt-Watt P...
Page 38: Figure 24 - Volt/Watt Configuration
Operation 100% Postive Power = Delivered to Grid Curve = 50% Voltage = 0% = -50% Negative Power = Curve Absorbed from Grid -100% Vnom STOP_MIN START_MIN START_MAX STOP_MAX Figure 24 - Volt/Watt Configuration For power commands less than ±100% W , the PCS will linearly adjust the commanded power from the respective min/max V voltage to the corresponding min/max V...
Page 39: Frequency/Watt Control
SunSpec Model 134, which is summarized in section 11.2.12. The P curves are defined using the registers found in Oztek Extension Model 64057, which is summarized in section 11.2.27. Figure 25 illustrates a basic Frequency-Watt P...
Page 40: Output Power And Current Limiting
Operation In general, the P curve is intended to reduce the power being delivered to the grid during over-frequency conditions, while the P curve is meant to increase the power during under- frequency conditions. The power limit is not required to stop at 0%, as shown in the figure it may continue beyond the X-axis.
Page 41: Anti-Island Detection
Operation Setting register 41168 = 1 provides real power priority, reducing the reactive power to meet the max rating. Setting register 41168 = 2 provides reactive power priority, reducing the real power to meet the max rating. In both cases, if the lower priority setpoint is reduced to zero, the higher priority setpoint will then begin folding back as well.
Page 42: Low/High Voltage Ride Through
Operation Momentary Cessation Active Must Ride Through Trip Continuous Operation Active Must Ride Through Trip Momentary Cessation Time (sec) Figure 26 - Ride Through Cessation and Trip Curves NOTE: The “momentary cessation” and “must trip” curves are independently programmable. For this reason, the “must trip” curve will always take priority over the “momentary cessation” curve if the curves (blue and red lines) intersect.
Page 43: Table 9 - Ca Rule 21 Default L/Hvrt Settings
Operation Table 9 - CA Rule 21 Default L/HVRT Settings Region Voltage Ride Through Until (s) Operating Mode Max Trip Time > 120 100ms > 110 Momentary Cessation 100ms Normal 88 ≤ V ≤ 110 Indefinite Continuous Operation < 88 Mandatory Operation 100ms <...
Page 44: Low/High Frequency Ride Through
Operation Must Trip High Voltage Region High Voltage Operating Region 1 Normal Voltage Operating Region Low Voltage Operating Region 1 Low Voltage Operating Region 2 Must Trip Low Voltage Region Low Voltage Operating Region 3 Time (sec) Figure 27 - Voltage Ride Through CA Rule 21 Configuration For the High Voltage Ride-Through “momentary cessation”...
Page 45: Table 10 - Ca Rule 21 Default L/Hfrt Settings
Operation models provide up to 20 points to create the curve. It is not required that all 20 points be defined and used - a separate register is used to specify the actual number of points defined in the array. Figure 28 illustrates the factory default L/HFRT curves, which are compliant with the CA Rule 21 default values defined in Table 10.
Page 46: Reconnect/Resume Behavior
Operation Must Trip High Frequency Region 62.0 High Frequency Operating Region 1 60.5 60.0 Normal Frequency Operating Region 58.5 Low Frequency Operating Region 1 57.0 Must Trip Low Frequency Region Time (sec) Figure 28 - Frequency Ride Through CA Rule 21 Configuration The Low/High Frequency Ride-Through (L/HFRT) “momentary cessation”...
Page 47: Operating States
Operation depending on the length of the disturbance. Following this fixed delay time, an additional, random delay time can also be configured. The Short or Long random delay is configured by REG 41339 or 41342 - Short(Long) Event Resume Turn-On Window. This parameter specifies the length of the time window in which the PCS will randomly re-enable the output.
Page 48: Initialize
Operation Initialize Init Done Fault Reset Fault Calibrate Done Fault Detected (From any Other State) Bias Enable = False Cal Done Disconnect or Stop Cmd (From any Operating State) Shut Bias Enable = False Disabled Down Connect & Start Cmd &...
Page 49: Calibrate
Operation tests while in this state. Upon successful initialization, the PCS will auto-transition to the Calibrate state. 6.5.2 Calibrate The Calibrate state is used to perform calibration of internal sensors and inputs. Following successful calibration, the PCS will auto-transition to the Disabled state. 6.5.3 Disabled When in the Disabled state, both the DC input contactor and AC output contactor are open and...
Page 50: Online
Operation 6.5.7 Online While in the Online state the PCS is connected to the grid and processing power. If a fault occurs while in this state, the PCS will immediately turn OFF, open the input and output contactors, and transition to the Fault state. If an AC line Error occurs or abnormal conditions are detected, the PCS will transition either to the Offline or Ride-Through state, depending on configuration.
Page 51: Shutdown
Fault and Warning Conditions 6.5.11 Shutdown The Shutdown state is entered whenever the Bias On/Off discrete input (section 5.2.2.2), is deasserted. While in the Shutdown state, the PCS performs various housekeeping tasks before finally disabling the bias supply, shutting itself down. Note that if the PCS happens to be operating, or in any state other than Fault or Disabled when the Bias On/Off input is deasserted, the system will automatically sequence to Disabled before transitioning to Shutdown.
Page 52: Ac Current Limit
Fault and Warning Conditions 7.1.4 AC Current Limit Regardless of operating mode, the PCS will limit the AC output current to the value specified by REG 40149 – Max RMS AC Current Capability. This warning bit is set whenever the PCS is actively limiting the AC output current.
Page 53: High Inverter Temperature
Fault and Warning Conditions 7.1.12 High Inverter Temperature This flag is set if the inverter temperature measurement exceeds a factory configured threshold. These thresholds are not user configurable. 7.1.13 High Ambient Temperature The PCS measures the internal temperature of the air exiting the enclosure and sets this flag if it exceeds a factory configured threshold.
Page 54: Volt-Var Active
Fault and Warning Conditions AC input. The supply monitors the health of these TVS devices to ensure that they are still working properly. This warning bit will be set and remain latched if one or more of the TVS devices appear to be damaged.
Page 55: H/W And S/W Inverter Over-Current A, B, C
Fault and Warning Conditions 7.2.1 H/W and S/W Inverter Over-Current A, B, C The PCS provides fast hardware protection for inverter over current conditions. It also monitors the RMS inverter currents for each of the three phases and will fault if any of the currents exceed the threshold specified by REG 41267 –...
Page 56: Invalid Model
7.2.9 Invalid Model This bit is set if the loaded product configuration is not compatible with the PCS Model. Please consult Oztek for the proper configuration file. 7.2.10 H/W and S/W DC Input Over-Voltage The PCS provides fast hardware protection for DC input over voltage conditions. It also monitors the DC input voltage and will fault if it exceeds the threshold specified by REG 41276 –...
Page 57: Real Time Clock - Time Format
Data Logging Bits 31 - 24 Bit 23 – 16 Bit 15 - 14 Bit 13 - 0 Month Year Real Time Clock – Time Format The RTC clock time is stored as a 32-bit data word with the following format: Bits 31 - 24 Bit 23 –...
Page 58: Fault Events
Data Logging 41573- PCS Faults Bitfield 41574 41575- PCS Warnings Bitfield 41576 41577 DC Input Voltage 0.1V 41578 DC Input Current 0.1 A 41579 RMS Grid Voltage – Phase AB 0.1 V 41580 RMS Grid Voltage – Phase BC 0.1 V 41581 RMS Grid Voltage –...
Page 59: Table 12 - Fault Log Header Data Description
Data Logging newest. For example, if REG 41534 = 4, there are 4 available logs; to read the oldest set REG 41537 = 0. Once the desired log has been selected, the header information can be read by writing a “1” to REG 41538 –...
Page 60: User Events
Data Logging With the header information, it is now possible to read as much or as little of the Fault Log as desired. Each record in the buffer is read individually by first writing the record number to REG 41539 - Fault Log – Get Selected Record, and then reading the selected data from the corresponding Data Log Buffer Registers.
Page 61: Configuring The Trigger Mode
Data Logging words per sample, K, would be 4 since DC Input Voltage and Current are U16 parameters and PCS Faults is a U32. If REG 41543 - User Log Sample Period = 10msec, then 2.656 seconds worth of data will be captured.
Page 62: Reading The Log
Data Logging the parameter number in Table 11. For example, to trigger off the PCS Faults, the register should be set to “1”. To trigger off DC Input Voltage the register should be set to “3”. The value in REG 41551(41557) - User Log Trigger1(2) Value Mask is logically AND’ed (bit-wise) with the selected variable.
Page 63: Table 16 - User Log Header Data Description
Data Logging To read the log, the user should first read the header information by writing a “1” to REG 41562 – User Log Get Header, followed by a read of Data Log Buffer Registers 41572 – 41583. Table 16 defines the header data and format as read from the Data log buffer registers along with example data.
Page 64: Fault History Log
Data Logging With the header information, it is now possible to read as much or as little of the User Log as desired. Each record in the buffer is read individually by first writing the sample number to REG 41563 - User Log – Get Selected Sample Data, and then reading the selected data from the corresponding Data Log Buffer Registers.
Page 65: Fault Time Stamp Log
Data Logging 9.2.2 Fault Time Stamp Log The PCS records the date and time of the last six occurrences for each of the possible faults. Each of the time and date values is a 32-bit value, formatted according to sections 8.1 and 8.2. The fault history buffers can be accessed by first specifying the fault by writing the bit location, as specified in REG 40129 –...
Page 66: Operating History Logs
Data Logging Operating History Logs The operating history log is intended to record critical operating parameters over the life of the PCS. This data includes operating time, and min/max values of critical parameters, as detailed in the following sections. 9.3.1 Operating Time Log The PCS keeps track of the cumulative time spent operating under a variety of conditions as defined in Table 20.
Page 67 Data Logging Parameter Parameters Index Units = Sec, Data Type = U32 Time Operating: 30 < T < 40 DegC Time Operating: 40 < T < 50 DegC Time Operating: 50 < T < 60 DegC Time Operating: 60 < T <...
Page 68 Data Logging Parameter Parameters Index Units = Sec, Data Type = U32 Time Operating: V < 200 V GRID Time Operating: 200 < V < 250 V GRID Time Operating: 250 < V < 300 V GRID Time Operating: 300 < V <...
Page 69: Min/Max Log
Data Logging For example, to read “Time Operating: 35 < P W”, write 0x0166 to register 41568 and then read registers 41572 and 41573 for the 32-bit time in secs, where 41572 holds the MSW and 41573 the LSW. To read the three consecutive times: Time Powered on, Time in Fault State, Time in Disabled State, write 0x0302 to register 41568 and then read registers 41572 to 41596.
Page 70 Data Logging Parameter Parameters Units Data Index Type Max – DC Current Phase A High Side 0.1 A Max – DC Current Phase B High Side 0.1 A Max – DC Current Phase C High Side 0.1 A Max – DC Current Phase A Low Side 0.1 A Max –...
Page 71: Communications Interface
Communications Interface To read the three consecutive parameters: Min – Temp Inverter Phase A, Min – Temp Inverter Phase B, Min – Temp Inverter Phase C, write 0x032F to register 41570 and then read registers 41572 to 41596. The read buffer will be organized as follows: Data Log Buffer Address Parameter 41572...
Page 72 Communications Interface If no error occurs related to the Modbus function requested in a properly received Modbus ADU, the data field of a response from a server to a client contains the data requested. If an error related to the Modbus function requested occurs, the field contains an exception code that the server application can use to determine the next action to be taken.
Page 73: Physical Layer
Communications Interface 10.2 Physical Layer The RS-485 physical interface conforms to the Modbus specification published on the Modbus.org site in 2002 (Modbus_over_serial_line_V1.pdf, Nov 2002). 10.3 RTU Transmission Mode Modbus supports two modes of transmission, ASCII (American Standard Code for Information Interchange), and RTU (Remote Terminal Unit).
Page 74: Data Field
Communications Interface The slave will set the high order bit of the function code to one in the response to indicate an exception. 10.3.4 Data Field The data field will vary in length according to which function is specified. This field contains information required by the slave to perform the specific function or it contains data collected by the slave in response to a query.
Page 75: Exception Response
Name Meaning Illegal Function The message function received by the slave is not supported by Oztek. Illegal Data The address (in the write request) or start address (in the Address read request) referenced in the data field is not valid.
Page 76: Preset Single Command Register (Function Code 06)
Communications Interface Request PDU: Slave Addr Func Code Starting Address # of Registers 8-bits 8-bits 16-bits 16-bits 16-bits Response PDU: Data … Data Slave Addr Func Code Data Length 8-bits 8-bits 8-bits 16-bits 16-bits 16-bits Error PDU: Slave Addr Error Code Exception Code 8-bits 0x83...
Page 77: Write Multiple Registers (Function Code 16)
Communications Interface Response PDU: Slave Addr Func Code Register Address Register Value 8-bits 8-bits 16-bits 16-bits 16-bits Error PDU: Slave Addr Error Code Exception Code 8-bits 0x86 8-bits 16-bits Here is an example request to write register 2 to 0x0003 on Slave 10: Request Response Field Name...
Page 78: Mesa-Pcs Modbus Profile
MESA-PCS Modbus Profile Error PDU: Slave Addr Error Code Exception Code 8-bits 0x90 8-bits 16-bits Here is an example request to write 2 registers starting at register address 1 to 0x000A and 0x0102: Request Response Field Name (Hex) Field Name (Hex) Slave Address Slave Address...
Page 79: Register Properties
HFRT Extended (Momentary Cessation) Arrays 64800 MESA-PCS Extension 64050 Oztek-PCS Control and Status 64051 Oztek-PCS System Configuration 64052 Oztek-PCS Alarm Settings 64053 Oztek-PCS Turn-On and Resume Settings 64054 Oztek-PCS Firmware Update 64055 Oztek-PCS Datalogging 64056 Volt-Watt P Arrays 64057 Freq-Watt P...
Page 80: Sunspec Data Formats
MESA-PCS Modbus Profile W = Writeable – the parameter is writable by the user R = Readable – the parameter is readable by the user O = Operating – the parameter may NOT be written while the PCS is ON, writes to any parameter with this indicator will be ignored if the PCS is ON C = Cyclical –...
Page 81: Sunspec Data Type S16
MESA-PCS Modbus Profile Acc16 0 … 65534 0x0000 ENUM 0 …. 65534 0xFFFF Bitfield 0 …. 0x7FFF 0xFFFF 0x8000 Always returns 0x8000 11.1.5 SunSpec Data Type S16 S16 represents all signed, 16-bit integer values and consist of a single register. Values are stored in big-endian order.
Page 82: Sunspec Data Type U64
Not Implemented Value: all registers filled with NULL or 0x0000. 11.2 Register Models The following sections tabulate the registers for each of the SunSpec and Oztek Extension models. The tables only include the implemented registers, Modbus reads of unimplemented registers will return the “Not Implemented” values defined in sections 11.1.4 through 11.1.9.
Page 83: Sunspec Model 1 Registers - Common Model
(Reg #) Header: 40001 SunSpec ID - Allows discovery as a SunSpec compatible device. 0x53756E53 40003 Model Identifier 40004 Model Length - # of 16-bit registers to follow Fixed Block: “Oztek 40005-40020 Manufacturer ASCII Corp.” “OZpcs- 40021-40036 Model ASCII RS40”...
Page 84: Sunspec Model 17 Registers - Serial Interface
MESA-PCS Modbus Profile 11.2.2 SunSpec Model 17 Registers – Serial Interface Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 40071 Model Identifier 40072 Model Length - # of 16-bit registers to follow Fixed Block: Baud Rate: Supported values = 4800, 19200, 38400, 57600, and 115200 40077 57600...
Page 85 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 40092 Phase Voltage – AB 0.1 V 40098 40093 Phase Voltage – BC 0.1 V 40098 0.1 V 40098 40094 Phase Voltage - CA 0.1 V 40098 40095...
Page 86 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Vendor Bitfield 1 – PCS Fault Status Bit 0 = H/W Over Current A Bit 15 = Ride Thru - Low Freq Bit 1 = H/W Over Current B Bit 16 = Ride Thru - High Freq Bit 2 = H/W Over Current C Bit 17 = Island Condition...
Page 87: Sunspec Model 120 Registers - Nameplate Ratings
MESA-PCS Modbus Profile 11.2.4 SunSpec Model 120 Registers – Nameplate Ratings Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 40137 Model Identifier 40138 Model Length - # of 16-bit registers to follow Fixed Block: 40139 Device Type: 4 = PV;...
Page 88: Figure 32 - Eei Power Factor Sign Convention
MESA-PCS Modbus Profile Figure 32 - EEI Power Factor Sign Convention 40kW Energy Storage PCS Hardware User’s Manual...
Page 89: Sunspec Model 121 Registers - Basic Settings
MESA-PCS Modbus Profile 11.2.5 SunSpec Model 121 Registers – Basic Settings Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 40165 Model Identifier 40166 Model Length - # of 16-bit registers to follow Fixed Block: 40167 Maximum Output Power 10 W...
Page 90: Sunspec Model 122 Registers - Measurement Status
MESA-PCS Modbus Profile 11.2.6 SunSpec Model 122 Registers – Measurement Status Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 40197 Model Identifier 40198 Model Length - # of 16-bit registers to follow Fixed Block: Bit Mask indicating Active Ride-through Status: 40240 Bit 0 = LVRT Active Bit 1 = HVRT Active...
Page 91: Sunspec Model 126 Registers - Static Volt-Var Arrays
MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Reactive Power Setpoint – Enable/Disable: 0 = Disabled; 1 = Enabled 40265 ENUM (Ignored if 40257 is set to 1 to Power Factor Setpoints) 40266 Scale Factor –...
Page 92 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 41671 Volt-VAR Curve 1: Point 4 – Voltage (% of Reg 40168 – Vref) 0.01 % 41660 5000 15000 10200 41672 Volt-VAR Curve 1: Point 4 – VAR (% of Reg 40173 – VARmax) 0.01 % 41661 -10000...
Page 93: Sunspec Model 129 Registers - Lvrt Disconnect (Trip) Arrays
MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 41796 Volt-VAR Curve 3: Points 5 thru 12 – VAR (% of Reg 40173 – VARmax) 0.01 % 41661 -10000 10000 41824 Volt-VAR Curve 3: Read Only: 0 = Read/Write; 1 = Read Only ENUM Units include applied scale factor register Active curve data is only updated on POR...
Page 94 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 40287 LVRTD Curve 1: Point 3 – Voltage (% of Vref, Reg 40168) 0.1 % 40279 1000 40288 LVRTD Curve 1: Point 4 – Ride Through Until Duration 0.01 Sec 40278 6000...
Page 95: Sunspec Model 130 Registers - Hvrt Disconnect (Trip) Arrays
MESA-PCS Modbus Profile 11.2.10 SunSpec Model 130 Registers – HVRT Disconnect (Trip) Arrays Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 40481 Model Identifier 40482 Model Length - # of 16-bit registers to follow Fixed Block: Active Curve: 0 = No active curve, 1 = Active Curve 1 40483...
Page 96: Sunspec Model 132 Registers - Volt-Watt P
MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 40543 HVRTD Curve 2: Number of Active Points in Array 40544 HVRTD Curve 2: Point 1 – Ride Through Until Duration 0.01 Sec 40490 40545 HVRTD Curve 2: Point 1 –...
Page 97 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 42081 Number of Curve Points Supported 42082 Scale Factor – Voltage sunssf 42083 Scale Factor – Real Power sunssf Repeating Block #1: 42085 Volt-Watt P Curve 1: Number of Active Points in Array 42086 Volt-Watt P...
Page 98: Sunspec Model 134 Registers - Frequency-Watt P
MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 42214 Volt-Watt P Curve 3: Points 3 thru 10 – Watts (% of Reg 40167 – Wmax) 0.01 % 42083 -10000 10000 42246 Volt-Watt P Curve 3: Read Only: 0 = Read/Write;...
Page 99: Sunspec Model 135 Registers - Lfrt Disconnect (Trip) Arrays
MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 42318 Freq-Watt P Curve 2: Point 1 – Frequency 0.01 Hz 42256 5000 7000 6050 42319 Freq-Watt P Curve 2: Point 1 – Watts (% of Reg 40167 – Wmax) 0.01 % 42257 -10000...
Page 100 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) LFRT Enable/Disable: Bit 0 : 1 = Enable, 0 = Disable 40696 Note: If disabled, then “Default Grid Low Frequency Threshold” register BitField 41172 is used to define the immediate disconnect threshold. 40700 Number of Curves Supported 40701...
Page 101: Sunspec Model 136 Registers - Hfrt Disconnect (Trip) Arrays
MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 40854 LFRT Curve 3: Read Only: 0 = Read/Write; 1 = Read Only ENUM Repeating Block #4 (not used): 40855 LFRT Curve 4: Number of Active Points in Array 40856 LFRT Curve 4: Point 1 –...
Page 102 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Repeating Block #1: 40917 HFRT Curve 1: Number of Active Points in Array 40918 HFRT Curve 1: Point 1 – Ride Through Until Duration 0.01 Sec 40914 50000...
Page 103: Sunspec Model 139 Registers - Lvrt Extended (Momentary Cessation) Arrays
MESA-PCS Modbus Profile 11.2.15 SunSpec Model 139 Registers – LVRT Extended (Momentary Cessation) Arrays Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 41825 Model Identifier 41826 Model Length - # of 16-bit registers to follow Fixed Block: 41827 Active Curve: 0 = No active curve, 1 = Active Curve 1...
Page 104: Sunspec Model 140 Registers - Hvrt Extended (Momentary Cessation) Arrays
MESA-PCS Modbus Profile 11.2.16 SunSpec Model 140 Registers – HVRT Extended (Momentary Cessation) Arrays Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 41887 Model Identifier 41888 Model Length - # of 16-bit registers to follow Fixed Block: 41889 Active Curve: 0 = No active curve, 1 = Active Curve 1...
Page 105: Sunspec Model 143 Registers - Lfrt Extended (Momentary Cessation) Arrays
MESA-PCS Modbus Profile 11.2.17 SunSpec Model 143 Registers – LFRT Extended (Momentary Cessation) Arrays Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 41949 Model Identifier 41950 Model Length - # of 16-bit registers to follow Fixed Block: 41951 Active Curve: 0 = No active curve, 1 = Active Curve 1...
Page 106: Sunspec Model 144 Registers - Hfrt Extended (Momentary Cessation) Arrays
MESA-PCS Modbus Profile 11.2.18 SunSpec Model 144 Registers – HFRT Extended (Momentary Cessation) Arrays Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 42011 Model Identifier 42012 Model Length - # of 16-bit registers to follow Fixed Block: 42013 Active Curve: 0 = No active curve, 1 = Active Curve 1...
Page 107: Sunspec Model 64800 Registers - Mesa Pcs Extension
3 = Enter Standby Mode (stop processing power) 4 = Exit Standby Mode (start processing power) This register is auto cleared to zero after a write. 11.2.20 Oztek Extension Model 64050 Registers – Control and Status Scale Data Factory Access...
Page 108 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) PCS Operating State 0 = Init 8 = On-Line 1 = Fault 9 = Off-Line 2 = Calibration 10 = Active Ride Thru 41129 3 = Disabled 11 = Passive Ride Thru ENUM...
Page 109: Oztek Extension Model 64051 Registers - Configuration
Curve 1 Error 6 = Freq-Watt P Curve 2 Error 3 = Freq-Watt P Curve 2 Error 7 = Freq-Watt P Curve 3 Error 11.2.21 Oztek Extension Model 64051 Registers – Configuration Scale Data Factory Access Number Description Units Factor...
Page 110: Oztek Extension Model 64052 Registers - Alarms
Scale Factor – DC Maximum Currents sunssf Units include applied scale factor register Ride through action register changes only take effect on POR or when the curve selection or enable registers are changed 11.2.22 Oztek Extension Model 64052 Registers – Alarms Scale Data Factory Access...
Page 111 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) AC Over Current Fault Threshold 0.1 Arms 41317 41267 41268 AC Over Current Warning Threshold 0.1 Arms 41317 41269 AC Over Current Warning Recover Delta 0.1 Arms 41317 41270...
Page 112 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Alarm Output Pin Polarity Bit 0: Alarm Output 1 Polarity Value 0 = High-Z when status is True 41287 Value 1 = Drive output low when status is True ENUM Bit 1: Alarm output 2 Polarity Value 0 = High-Z when status is True...
Page 113: Oztek Extension Model 64053 Registers - Turn-On And Resume Settings
41316 Scale Factor – AC Current sunssf 41317 Scale Factor – DC Voltage sunssf 41318 Units include applied scale factor register 11.2.23 Oztek Extension Model 64053 Registers – Turn-On and Resume Settings Scale Data Factory Access Number Description Units Factor...
Page 114 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Turn-On Max AC Voltage (% of Reg 40168 – Voltage at the PCC) 41331 0.1 % 41361 1100 1000 1200 Grid voltage must be below this limit for PCS to resume operation. Turn-On Min AC Voltage (% of Reg 40168 –...
Page 115: Oztek Extension Model 64054 Registers - Firmware Update
Scale Factor – Turn-On Times sunssf 41364 Scale Factor – Timeout sunssf Scale Factor – Ride-Through Recover Delay sunssf 41365 Units include applied scale factor register 11.2.24 Oztek Extension Model 64054 Registers – Firmware Update Scale Data Factory Access Number Description Units Factor Type...
Page 116: Oztek Extension Model 64055 Registers - Datalogging
CRO_WRD3 … CRO_WRD125 65535 41505 Firmware Update – Control Receive Object, Word 126 (CRO_WRD126) 41506 65535 MSB = Data Byte 252; LSB = Data Byte 251 11.2.25 Oztek Extension Model 64055 Registers – Datalogging Scale Data Factory Access Number Description Units...
Page 117 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Real Time Clock – Set Date This register is used to set the date using the following format: BITS [13..0] = Year BITS [15..14] = not used BITS [23..16] = Month BITS [31..21] = Day 0x1F0C...
Page 118 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Real Time Clock – Get Date Returns the Date in the following format: BITS [13..0] = Year BITS [14] = Set Status: 41529 ENUM 0 = Date has not been set since POR 1 = Date has been set since POR BITS [15] = not used...
Page 119 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Fault Log – Get Header Get the header for the selected log using register 41537. Header data will be placed in Data Log Read Buffer 41572-41635. See section 9.1.19.1.2.5 for 41538 ENUM details on the header information.
Page 120 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) User Log – Trigger 1 Compare Type See section 9.1.2.4 for details. 0 = Less Than 41549 ENUM 1 = Greater Than 2 = Equal To 3 = Not Equal To User Log –...
Page 121 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) User Log – Get Header Get the header for the User Log. Header data will be placed in Data Log Read Buffer 41572-41635. See section 9.1.2.5 for details on the header 41562 ENUM information.
Page 122: Oztek Extension Model 64056 Registers - Volt-Watt P Min Arrays
MESA-PCS Modbus Profile 11.2.26 Oztek Extension Model 64056 Registers – Volt-Watt P Arrays Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 42433 Model Identifier 64056 42434 Model Length - # of 16-bit registers to follow...
Page 123: Oztek Extension Model 64057 Registers - Frequency-Watt P Min Arrays
Curve 3: Read Only: 0 = Read/Write; 1 = Read Only ENUM Units include applied scale factor register Active curve data is only updated on POR 11.2.27 Oztek Extension Model 64057 Registers – Frequency-Watt P Arrays Scale Data Factory Access...
Page 124 MESA-PCS Modbus Profile Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) 42619 Freq-Watt P Curve 1: Number of Active Points in Array 42620 Freq-Watt P Curve 1: Point 1 – Frequency 0.01 Hz 42616 5500 5000 7000 42621...
Page 125: Sunspec Model 0Xffff Registers - End Model
MESA-PCS Modbus Profile 11.2.28 SunSpec Model 0xFFFF Registers – End Model Scale Data Factory Access Number Description Units Factor Type Default Level (Reg #) Header: 42793 Model Identifier 0xFFFF 42794 Model Length - # of 16-bit registers to follow Publication UM-0061...
Page 126: Servicing The Unit
The PCS supports in-system firmware updates. The Oztek provided Power Studio™ Tool can be used to perform the update, or alternatively, the customer can incorporate the update functionality into their system controller.
Page 127: Oztek Power Studio™ Tool
Oztek Extension Model 64054 Registers – Firmware Update. 14. Oztek Power Studio™ Tool The Oztek Power Studio™ tool is a Microsoft Windows based Graphical User Interface (GUI), as shown in Figure 33, which can be used to easily configure and control the PCS. The tool communicates with the unit using Modbus and provides a simple, intuitive user interface.
Page 128: Figure 33 - Oztek Power Studio
Oztek Power Studio™ Tool Figure 33 - Oztek Power Studio For detailed information and operating instructions, please refer to UM-0052 Oztek Power Studio™ User’s Manual. 40kW Energy Storage PCS Hardware User’s Manual...
Page 129: Appendix A - Records Of Certification
Appendix A – Records of Certification 15. Appendix A – Records of Certification Publication UM-0061...
Page 130 Appendix A – Records of Certification 40kW Energy Storage PCS Hardware User’s Manual...
Page 131: Warranty And Product Information
Claims are limited to repair and replacement, or if in Oztek's discretion that is not possible, reimbursement up to the purchase price paid for the product. Oztek will be liable to you only for direct damages suffered by you and only up to a maximum amount equal to the purchase price of the product.
Page 132 BEEN ADVISED, OR HAD REASON TO KNOW, OF THE POSSIBILITY OF SUCH DAMAGE, (b) ANY LIABILITY ARISING IN TORT, WHETHER OR NOT ARISING OUT OF OZTEK'S NEGLIGENCE, AND ALL LOSSES OR DAMAGES TO ANY PROPERTY OR FOR ANY PERSONAL INJURY OR ECONOMIC LOSS OR DAMAGE CAUSED BY THE CONNECTION OF A PRODUCT TO ANY OTHER DEVICE OR SYSTEM, AND (c) ANY DAMAGE OR INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE, OR THE INCORRECT INSTALLATION, INTEGRATION OR OPERATION OF THE PRODUCT.
Page 133: Return Material Authorization Policy
Warranty and Return Return Material Authorization Policy Before returning a product directly to Oztek you must obtain a Return Material Authorization (RMA) number and the correct factory "Ship To" address. Products must also be shipped prepaid. Product shipments will be refused and returned at your expense if they are unauthorized, returned without an RMA number clearly marked on the outside of the shipping box, if they are shipped collect, or if they are shipped to the wrong location.

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