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Summary of Contents for EpiSensor ZDR-15
- Page 1 User Guide Wireless Demand Response Controller Applies to: ZDR-10, ZDR-15, ZDR-16, ZDR-17 EPI-078-03 © EpiSensor...
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Page 2: Table Of Contents
Table of Contents Safety Information Electrical Installation Intended Use Related Documents Introduction Benefits Features Data Feeds & Settings Frequency Response Settings General Settings Frequency Analysis, Property 6552 Voltage to Current Datapath, Property 6554 Meter Configuration, Property 6036 System State Sensors Event Response Sensors User Interface Sensors Electricity Metering Sensors... - Page 3 Front Panel Demand Response Logic Rules Engine Remote Management Gateway API Firmware Updates Hardware Features Power Supply Communications Wireless Communications Electricity Metering Electricity Metering Current Transformers Rogowski Coils Supported 3-phase configurations Voltage Reference Switch Output Analogue Inputs Digital Inputs Pulse Info Pulse Operation Dry Pulse Open Collector Pulse...
- Page 4 Compliance Label Ordering Information Warranty Glossary Page 4 of 46...
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Page 5: Safety Information
Electrical equipment should be installed, operated, serviced and maintained only by qualified personnel. No responsibility is assumed by EpiSensor for any consequences arising out of the use of this material. A qualified person is one who has skills and knowledge related to the construction, installation, and operation of electrical equipment and has received safety training to recognize and avoid the hazards involved. - Page 6 ➔ If the equipment is not used in a manner specified by EpiSensor, the protection provided by the equipment may be impaired. ➔ Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electric power. Assume that all circuits are live until they have been completely de-energized, tested, and tagged.
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Page 7: Intended Use
Related Documents Related installation and configuration documents are listed in the following table: Document Reference No. EPI-066-00 EpiSensor ZDR Datasheet EPI-065-00 Install Sheet for ZDR ESE-009-08 Gateway API User Guide EPI-064-00... -
Page 8: Introduction
The system is capable of streaming data securely to a Network Operations Centre (NOC) to arm the system, detect low frequency events, override the system remotely, and switch loads both automatically and manually. With a wide range of additional sensors available, EpiSensor’s platform can also be used for energy management, environmental monitoring and many other applications. -
Page 9: Data Feeds & Settings
Data Feeds & Settings The list of parameters that are available to monitor on the ZDR are listed below. Data reporting can be enabled or disabled as required for each of the ‘sensors’ below. Frequency Response Settings Single Channel ZDR-16 [One Switch and one Event Value Affecting 4 Relays Concurrently] The following table lists the settings on the ZDR that relate to frequency response. - Page 10 the frequency is above nominal 6491 High Exit Event The value at which the system will 0.001 50.200 Read/Write Value trigger the end of an event when the frequency is above nominal 6492 Low Exit Event The value at which the system will 0.001 49.800 Read/Write...
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Page 11: General Settings
General Settings 6503 Auto Exit Defines whether the site will exit a TRUE Read/Write trip state automatically after an /FALSE event, or if it should wait for a ‘soft reset’ from a user via the pushbutton. 6508 Pre Event Log Time The number of seconds the HSDM seconds Read/Write should record before the event. -
Page 12: Frequency Analysis, Property 6552
6557 Voltage A setting allowing the ZDR to read VAC (L-L) 120 - Read/Write Measurement low range voltages, or high range Range voltages by applying a different gain factor to the voltage channels 6036 Configuration The American ANSI C12.10 standard 9S/16S Read/Write defines the different configurations... -
Page 13: Voltage To Current Datapath, Property 6554
Voltage to Current Datapath, Property 6554 The ZDR can direct one phase voltage input to the computational datapath of another phase. For example, Phase A voltage can be introduced in the Phase B computational datapath, which means all powers computed by the ZDR in Phase B are based on Phase A voltage and Phase B current. -
Page 14: Event Response Sensors
Armed 2 (On 4 Set to 1 when the Key Switch is in Interval Read Only channel ZDR-16 the Armed position AND Remotely and Delta only) Armed property is TRUE so Frequency Response is active on Relay 2. Set to 0 otherwise. Armed 3 (On 4 Set to 1 when the Key Switch is in Interval... -
Page 15: User Interface Sensors
Relay 1 (On 4 The position of the RL1 Relay. This Interval Read/Write channel ZDR-16 Relay is for FR Events only so cannot and Delta only) be set externally. Note that the switch could be ON, when no event is in progress if the system is waiting for a manual Exit. -
Page 16: Electricity Metering Sensors
Relay 1 Low Exit An Echo of the Low Exit Event Value Snap to Read Only Event Value (On 4 Property 6492 On Relay 1 which Clock channel ZDR-16 allows this to be exported as a only) Sensor in the normal fashion Relay 1 Low Enter An Echo of the Low Enter Event Snap to... -
Page 17: Analogue & Digital Inputs
Phase A Active Instantaneous Active Power on Read Only Power Phase A Phase B Active Instantaneous Active Power on Read Only Power Phase B Phase C Active Instantaneous Active Power on Read Only Power Phase C Phase A Power Power Factor on Phase A Read Only Factor Phase B Power... -
Page 18: Modbus Sensors
4-20 MilliAmps The Instantaneous Milli Amp value 0.001 Read Only Now 2 on channel 1 of the 4-20 Milliamp input. 4-20 MilliAmps MIn The number of pulses recorded on 0.001 Read Only channel 2 during the previous reporting interval. 4-20 MilliAmps The average 4-20mA value of 0.001 Read Only... - Page 19 Notify external communication that DR Mode Active Read Only UPS is in DR mode System output power rating UPS Power Rating Read Only Maximum power capacity available Power Deliverable Read Only for up regulation Maximum power capacity available Power Receivable Read Only for down regulation Current battery power...
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Page 20: Network And Zigbee Sensors
The value written to Sensor 248 to start UPS Control is the value contained in Property ID 6515 - dFFR Battery Enable Function. The value written to Sensor 248 to stop UPS Control is the same value minus one. The value written to Sensor 249 to define the power required from the UPS is defined by the property 6510, 6511, 6512 and 6513 - those being the Start Frequency, Step Count, Frequency Step Size and Energy Per Step. -
Page 21: User Interface
The overall reaction time for the ZDR is 100 milliseconds. User Interface There are two user interfaces on the ZDR - the front panel, and the mode button & LED. The front panel user interface is intended to inform local users about the state of the ZDR, whether it is armed / participating in DR programs, and if an event is currently in progress. -
Page 22: Mode Button
Check the power supply, and if the problem persists, contact EpiSensor support. Mode Button The following options are available with Command Mode. The button should be pressed and then released to register a valid button press. -
Page 23: Front Panel
Flash Rate Flashes per Second Wireless Signal Strength Very Fast 10 flashes / second (Light on 50ms, off 50ms) Very good Signal > 200 Fast 2 flashes / second (LED on 250 ms, off 250 ms) Good Signal > 150 Slow 1 flash / 2 seconds (LED on 1 sec, off 1 sec) OK Signal... -
Page 24: Demand Response Logic
Flashing The system is disarmed, but would trigger an Event Response if Armed. The system must have a Sensor configured for Event Monitoring for this status to arise. Flash every 2 The system is armed but is only seconds available for Demand Response Programs, No Sensor is configured for Event Monitoring The system is fully armed and is... -
Page 25: Remote Management
ZDR installations. Gateway API EpiSensor’s Gateway has a RESTful API which can be used to send commands to the ZDR node, change settings and query data. For more detailed information on the Gateway API, and the functionality available, please refer to the Gateway API User Guide (EpiSensor Document Ref. -
Page 26: Hardware Features
For detailed instructions on updating the ZDR (and other EpiSensor nodes) over-the-air please refer to the document “How to Bootload on a Live Gateway” (EpiSensor Document Ref. EPI-064-00). For additional advice and support, please email support@episensor.com Hardware Features This section has an overview of the various features / components of the ZDR. For more detailed information on any part, please email support@episensor.com... -
Page 27: Power Supply
600 Volts should be used to make the connection. Please refer to the document “Mains Power Supply, Voltage References & Current Transformers” (EpiSensor Document Ref. No. EPI-065-00) for detailed wiring instructions. Page 27 of 46... -
Page 28: Communications
However, care should be taken, particularly for Demand Response applications, that the power supply is constant and won’t be interrupted during a DR event - as this would affect the operation of the ZDR. For more information on the technical specification of the ZDR power supply, please refer to EpiSensor ZDR Datasheet. - Page 29 Label Also Called Also Called RS485+ RS485- Earth Ground On long cable runs, a 120R terminating resistor is required at both ends across the A and B wires. Individual drops do not need terminating resistors. The cable should be a shielded twisted pair with the shield at one end connected to Earth / Ground. If the system is earthed away from the ZDR, then the GND wire should not be connected to the ZDR.
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Page 30: Wireless Communications
Error codes from Modbus are detected by the ZDR but are currently not reported to the Gateway. Wireless Communications All EpiSensor products use IEEE 802.15.4 ZigBee Pro for wireless communications operating at 2.4GHz. This is a secure, scalable mesh networking communications protocol designed for transmitting small amounts of data reliably, and at low power levels. -
Page 31: Electricity Metering
There are two types of ZigBee radio module used across the EpiSensor product range, a power amplified version, and non-power amplified version. The power output of nodes with a power-amplified module can be configured with an output power level of +20 dBm depending on the region they are deployed in. -
Page 32: Electricity Metering
Electricity Metering This section will be completed in a future release of the user guide. Information to be included: ● Additional information regarding the on-board 3-phase metering capability on the ZDR ● How frequency, power consumption and other parameters are measured ●... -
Page 33: Rogowski Coils
Wiring Diagram for Current Transformer Inputs (showing terminal block for 1A / 5A CT’s) Rogowski Coils Rogowski coils (sometimes referred to as flexible CT’s) are supported natively on the ZDR. They are easy to install, particularly in situations where there are multiple conductors per phase, or when the conductor size is not known in advance of starting the installation. -
Page 34: Supported 3-Phase Configurations
Type Inner Diameter Minimum Current Maximum Current Working Voltage 120mm 1000A CAT III-1000V or CAT IV-600V 80mm 1000A CAT III-1000V or CAT IV-600V Important Note Milliamp CT’s & Rogowski Coils supplied with the ZDR are factory calibrated and are not interchangeable –... -
Page 35: Voltage Reference
For more information on how to connect Current Transformers and the voltage references for each configuration, please consult the install sheet for the ZDR. Voltage Reference The Voltage inputs to the electricity metering section can have a scaling factor applied. This is most useful in situations where the voltage being monitored is stepped down with a VT such as when an MV system is stepped from 11,000V to 110V with a 100 to 1 ratio. -
Page 36: Switch Output
Important Note The kilowatt hour registers on the ZDR will roll over at a value of 21,474,836 kWh. Software packages should be configured to compensate for this threshold being crossed. Switch Output This section of the document has information on the switching capability of the ZDR. The ZDR’s relays can be controlled either remotely with a command / API request, or based on demand response logic (like line frequency crossing a set point). -
Page 37: Digital Inputs
4-20mA current loop inputs The diagram below shows two 4-20mA current inputs connected to terminals on the ZDR’s main circuit board. For additional technical information on rated voltages, resolution, etc. please consult the ZDR datasheet. Wiring Diagram for 4-20mA Inputs Digital Inputs There are two digital (pulse) inputs available on the ZDR. -
Page 38: Pulse Operation
Wiring Diagram for Pulse Inputs Pulse Operation This section describes the operation of the 3 different pulse types. Dry Pulse A dry pulse can be thought of as a simple switch. Window alarm contacts or reed switches would be examples of such a connection. -
Page 39: Active Pulse
Schematic diagram of an open collector pulse output When the Integrated Circuit (IC) Output is pulsed, the signal on the “Open Collector” gets connected to the IC’s Ground. This system is polarity sensitive. The Open Collector connection must be connected to the positive (+) terminal of the IN connector and IC Ground must be connected to the negative (–) terminal of the IN connector. -
Page 40: Opening The Enclosure
Important Safety Note The enclosure of the ZDR must not be drilled, cut or modified in any way for mounting or connecting to external systems. All parts of the circuit within the enclosure must be considered to be at dangerously high mains voltage when the unit is connected to a mains voltage source. -
Page 41: Tamper Evident Seals
Important Safety Note EpiSensor equipment should be installed, operated, serviced and maintained only by qualified personnel. There are no user-serviceable parts inside the ZDR enclosure, and it should always be isolated from mains voltages before opening the enclosure lid. When closing the lid, take care to ensure that no wires or cable ties are obstructing the gasket of the enclosure. - Page 42 An example of a suitable tamper-evident seal is as follows: Image Parameter Description Manufacturer ACME Seals Limited NPX30 Body Material Polypropylene Insert Material Spring Stainless Steel Ribbon Diameter Average Breaking Strength 15kg Compliance Label There is a compliance label on the back of the ZDR enclosure that has important regulatory and node identification information.
- Page 43 The label material is gloss white PVC foil with permanent adhesive and gloss overlaminate. The following table lists the certification and safety symbols that appear on the certification labels of EpiSensor products. Please refer to it for a definition of each symbol.
- Page 44 EpiSensor products are not suitable or specifically designed, manufactured or licensed for use in military, aviation, powerplant, medical or in other inherently dangerous or safety critical applications. Ordering Information EpiSensor products are available to order directly or via EpiSensor’s distribution partners. The following tables describe the product code structure and list the available ZDR options.
- Page 45 Troubleshooting & Support If you are experiencing problems with the ZDR or any other part of your EpiSensor system, or you notice something unusual - please contact EpiSensor support at the following email address, phone number or via live chat on our website.
- Page 46 Alternating Current Reporting Mode Defines how an EpiSensor node should report data to the Gateway Reporting The length of time between each data point produced by a node Interval Reporting mode where data is ‘snapped’ to the nearest 1 minute / 5 minute / 15 minute Snap to Clock interval etc.
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