Z205667-0G Page 1 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. Installation Guide Power Monitoring TM Product Identification Product Overview The E31 Series Branch Circuit Power Meter is designed to measure the current, and on some models, voltage and energy consumption of up to 92 circuits (84 branch circuits, 2 3-phase mains, 2 neutrals) on a single board. One E31 can monitor up to two panels. The E31 consists of a data acquisition board and up to 84 split-core current sensors (50 A, 100 A, or 200 A), with eight auxiliary inputs. Each conductor passes through a current sensor and terminates at the breaker. Each sensor transmits the current data to the data acquisition board. Data is transmitted using an RS-485 Modbus protocol. Each data acquisition board requires two addresses, one for each set of 42 current sensors and four auxiliary inputs. Data is updated roughly every two seconds. As a circuit approaches the user-defined threshold, the E31 activates the alarm indicators. The E31 can easily accommodate different panel configurations, including any combination of multi-phase breaker positions, voltage phase mapping, and breaker sizes. To configure the E31 for operation, download the NetConfig configuration software tool and the E3x Commissioning Guide from the Veris website at www.veris.com/modbus_downloads. The E31A measures both current and power for the mains and branch circuits. The E31B measures both current and power for the mains, and current only in each circuit. The E31C measures current only for the mains and branch circuits. E31 Series Branch Circuit Power Meter with Split-Core CTs E31 Description # of CTs A = Advanced board B = Intermediate board C = Basic board 002 = 2 adapter boards, no CTs, no cables 004 = 4 adapter boards, no CTs, no cables 42 = 2 adapter boards, 42 50A CTs, 2 4 ft. round ribbon cables 84 = 4 adapter boards, 84 50A CTs, 4 4 ft. round ribbon cables * *The CE mark indicates RoHS2 compliance. Please refer to the CE Declaration of Conformity for additional details.Z205667-0G Page 2 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM Regulatory Information FCC PART 15 INFORMATION NOTE: This equipment has been tested by the manufacturer and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Modifications to this product without the express authorization of the manufacturer nullify this statement. WARNING LOSS OF CONTROL • Assure that the system will reach a safe state during and after a control path failure. • Separate or redundant control paths must be provided for critical control functions. • Test the eect of transmission delays or failures of communication links.1 • Each implementation of equipment using communication links must be individually and thoroughly tested for proper operation before placing it in service. Failure to follow these instructions may cause injury, death or equipment damage. Control system design must consider the potential failure modes of control paths and, for certain critical control functions, provide a means to acheive a safe state during and after a path failure. Examples of critical control functions are emergency stop and over-travel stop. 1For additional information about anticipated transmission delays or failures of the link, refer to NEMA ICS 1.1 (latest edition). Safety Guidelines for the Application, Installation, and Maintenance of Solid-State Controls or its equivalent in your specic country, language, and/or location. A qualied person is one who has skills and knowledge related to the construction and operation of this electrical equipment and installations, and has received safety training to recognize and avoid the hazards involved. NEC Article 100 If this product is used in a manner not specied by the manufacturer, the protection provided by the product may be impaired. No responsibility is assumed by the manufacturer for any consequences arising out of the use of this material. DANGER HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH • This product must be installed inside a suitable fire and electrical enclosure. • Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes. • This equipment must only be installed and serviced by qualified electrical personnel. • Do not use this product for life or safety applications. • Do not install this product in hazardous or classified locations. • Read, understand and follow the instructions before installing this product. • Turn off all power supplying equipment before working on or inside the equipment. • Product may use multiple voltage/power sources. Disconnect ALL sources before servicing. • Use a properly rated voltage sensing device to confirm that power is off. DO NOT depend on this product for voltage indication. • Current transformer secondaries (current mode) must be shorted or connected to a burden at all times. • Products rated only for basic insulation must be installed on insulated conductors. • Replace all doors, covers and protective devices before powering the equipment. • The installer is responsible for conformance to all applicable codes. Failure to follow these instructions will result in death or serious injury. Provide a disconnect device to disconnect the meter from the supply source. Place this device in close proximity to the equipment and within easy reach of the operator, and mark it as the disconnecting device. The disconnecting device shall meet the relevant requirements of IEC 60947-1 and IEC 60947-3 and shall be suitable for the application. In the US and Canada, disconnecting fuse holders can be used. Provide overcurrent protection and disconecting device for supply conductors with approved current limiting devices suitable for protecting the wiring. This symbol indicates an electrical shock hazard exists. Documentation must be consulted where this symbol is used on the product.Z205667-0G Page 3 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM VOLTAGE INPUTS Measurement Voltage90 to 300 Vac line-to-neutral, 50/60 Hz Control Power90 to 277 Vac line-to-neutral, 50/60 Hz ACCURACY Power/EnergyIEC 62053-21 Class 1, ANSI C12.1-2008 system accuracy (including 50 A or 100 A branch CTs) Voltage±0.5% of reading 90 to 277 V line-to-neutral OPERATION Sampling Frequency2560 Hz Update Rate1.8 seconds (both panels) Overload Capability 22 kAIC OUTPUTS TypeModbus RTU ConnectionDIP switch-selectable 2-wire or 4-wire, RS-485 AddressDIP switch-selectable address 1 to 247 (in pairs of 2)* Baud RateDIP switch-selectable 9600, 19200, 38400 Parity DIP switch-selectable NONE, ODD, EVEN Communication Format8 data bits, 1 start bit, 1 stop bit Termination5-position depluggable connector (TX+ TX- SHIELD TX+/RX+ TX-/RX-) WIRE SIZE RANGE Aux CT Terminals on Main Board 24 to 14 AWG Removable Connectors on Main Board 22 to 12 AWG Terminals on CT Adapter Boards 26 to 16 AWG TERMINAL BLOCK TORQUE Aux CT Terminals on Main Board 3.5 to 4.4 in-lb (0.4 to 0.5 N-m) Removable Connectors on Main Board 4.4 to 5.3 in-lb (0.5 to 0.6 N-m) Terminals on Branch CT Adapter Boards1.9 to 2.2 in-lb (0.22 to 0.26 N-m) MECHANICAL Ribbon Cable Support4 ft. (0.9 m) round ribbon cable ships standard; up to 20 ft. (6 m) flat or round available OPERATING CONDITIONS Operating Temperature Range 0 to 60 °C (32 to 140 °F) (<95% RH non-condensing) Storage Temperature Range-40 to 70 °C (-40 to 158 °F) Altitude of Operation3000 m COMPLIANCE INFORMATION Agency ApprovalsUL508 open type device**, IEC/EN61010-1 Installation CategoryCat III, pollution degree 2*** Conducted and Radiated Emissions FCC part 15 Class B, EN55011/EN61000-6-3 Class B (residential and light industrial) Conducted and Radiated ImmunityEN 61000-6-2 and EN 61326-1 * See Configuration section for details. **The E31 must be installed in an appropriate electrical and fire enclosure per local regulations. If Veris E31 products are used in installations with circuits higher than the product ratings, the circuits must be kept segregated per UL508A Sec. 17.5. Note: E31 internal circuitry (cables and CTs) are not circuits as defined by UL508A, as they do not extend beyond the E31 itself without further safety/fire isolation. *** A Pollution Degree 2 environment must control conductive pollution and the possibility of condensation or high humidity. Consideration must be given to the enclosure, the correct use of ventilation, thermal properties of the equipment and the relationship with the environment. SpecificationsZ205667-0G Page 4 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM Table of Contents Dimensions5 Product Diagram6 Data Outputs7 Blink Codes for Status LED9 Solid-Core CT Specifications9 Installation10 Wiring15 Configuration18 Default DIP Switch Settings19 Address Selection20 Commissioning21 Recommended Accessories21 Troubleshooting22 China RoHS Compliance Information (EFUP Table)23Z205667-0G Page 5 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM Dimensions Circuit Board and Mounting Bracket 7.3” (184 mm) 8.9” (226 mm) 5.8” (146 mm) 4.8” (122 mm) 3.9” (100 mm) 7.9” (200 mm) 8.3” (211 mm) 1.75” (45 mm) Ø = 0.2” (5 mm) 4.6” (117 mm) 2.75” (70 mm) 1.00” (26 mm) 1.00” (26 mm) Adapter Board D E C B A D E B A C E31CT0 50 Amp A = 1.0” (26 mm) B = 0.5” (11 mm) C = 0.4” (10 mm) D = 0.9” (23 mm) E = 1.6” (40 mm) E31CT1 100 Amp A = 1.5” (37.5 mm) B = 0.6” (16 mm) C = 0.6” (16 mm) D = 1.85” (47 mm) E = 2.1” (53 mm) E31CT3 200 Amp A = 1.5” (39 mm) B = 1.25” (32 mm) C = 1.25” (32 mm) D = 2.5” (64 mm) E = 2.8” (71 mm) B E A C D Current SensorsZ205667-0G Page 6 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM Product Diagram 7 1 2 3 4 5 6 2 8 9 10 AA BB 11 13 14 1. 50-Pin Ribbon Cable Connectors: Ribbon cables attach here for easy connection of adapter boards to the data acquisition board. The two connectors on the left are for panelboard 1; the two on the right are for panelboard 2. Note: Connect Adapter Boards A and B to the correct ribbon cable connectors for each panel. The top connector is for Adapter Board A, and the bottom connector is for Adapter Board B. Note: Ribbon Cable is not included with all E31 models. For ribbon cable options, see the Recommended Accessories section. 2. Auxiliary CT Inputs: These 0.333 Vac inputs are used for monitoring the main breaker or other high amperage source. Inputs on the left are for panelboard 1; inputs on the right are for panelboard 2. 3. Control Power Connection: Provides power to operate the meter. 4. Control Power Fuse: 600 Vac, 500 mA time lag, factory-replaceable. 5. Alive LED: Red/green/amber LEDs. Blink codes are described in the Blink Codes for Status LED section of this document. 6. Voltage Taps: 1, 2, or 3 phase plus neutral connections. For voltage sensing and power calculations (no voltage taps on the E31C). Voltage taps are shared by both panels. 7. Communications Address DIP Switch: Each Modbus device must have a unique address. Switches are binary weighted. Left-most switch has a value of 1; right-most switch has a value of 128. Note: switches set the address for panel 1; panel 2 is automatically set to (Panel 1 address + 1). See Configuration section for details. 8. Communications Settings DIP Switch: Configures baud rate, parity, 2- or 4-wire communications. 9. RS-485 Connection: Used for Modbus serial communications. The Universal plug accommodates 2 or 4 wire connections. 10. RS-485 LEDs: The RX LED (closest to DIP switches) indicates the RS-485 is receiving information; the TX LED indicates transmission of information. 11. Power LED: Indicates power to main board 12. Branch Current Sensors: Each split-core current sensor is capable of monitoring conductors rated up to a maximum of 50, 100, or 200 amps. Up to 84 sensors can be purchased with the E31 (see the Recommended Accessories section). One of each style is pictured here. 13. Ribbon Cable Connection 14. CT Terminal Connections 12Z205667-0G Page 7 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM Data Outputs The E31 provides several types of measurements that give a comprehensive view of power consumption for every load on the panel (the table below shows which measurements are offered on each model): • Real-time measurements: A live and up-to-date view of present power levels and the factors that affect them. • Demand measurements: Averages of values measured over a specified time interval. The time interval (typically 15 minutes) can be set from 10 seconds to more than a day. The demand calculation can be configured to use single intervals or the sliding average of up to six sub-intervals. Demand measurements are useful for tracking or graphing load levels over time to correlate with total energy consumption. • Historic maximum measurements: These measurements store the largest value recorded for a specific measurement since the last time they were cleared. They are useful for identifying peak levels critical to equipment sizing or demand limits in utility agreements. • Accumulated energy measurements: Ongoing totals of cumulative energy used since the last time the value was cleared. Energy values provide the informational basis for billing, cost allocation, carbon offset, BTU equivalent calculations, and other applications of overall energy use. • Energy snapshots: Energy totals that only change when the demand intervals are updated. They are samples of the free-running energy accumulators at the end of each demand interval, as configured by the user. These provide energy readings that are easily correlated to the demand values to simplify the tasks of sub-billing and cost allocation. • Alarms: Provide a warning of excessively high or low current on each branch and aux channel. The user can set two high-level and two low-level thresholds, and a delay time for latching alarms. Alarms are reported as both non-latched vents and latched events. Non-latching alarms are active while the current exceeds the threshold, but go inactive if the current returns to a level within the specific thresholds. Latching alarms become active when the current exceeds the threshold for a time period greater than the specified delay and remain active until they are cleared remotely. • Alarm status can be polled via Modbus. Advanced Features - Some models, especially the E31A support a number of advanced features. Some are always active, and others are configured manually via Modbus register 62017). For models with 42 channels or more, these features are configured independently for each panel. • Logical meter support: The E31 can be configured to map any set of 1, 2 or 3 channels that are adjacent in the panel to a logical meter, referred to in the point map as a logical circuit, that provides accurate multi-phase measurement totals. Map these logical circuits by writing the desired logical circuit number into a set of registers/data objects provided for each branch and aux channel (per panel). • The channels assigned to each logical circuit must be adjacent in the panel (usually used for multi-phase breakers), but there are no limitations on where those adjacent channels are aligned in the panel (any position where a multi-phase breaker can be installed). This functionality is always active, but a user selection affects the how the data can be accessed via Modbus. Measurement data via Modbus for logical circuits is presented in two ways, arranged either by logical circuit number (looks more like a collection of individual meters) or by measurement type (arranged similar to the single-phase data section of the point map). • Legacy point map or alternate logical circuit point map: The E31 can be configured to select a preferred version of the Modbus registers in the address range 4000 to 9999. If enabled (default), the logical circuits by measurement type is active. Otherwise, the legacy point maps for 2-phase and 3-phase breakers used in E3x models with a firmware version earlier than 1.023 is active. The logical circuits functionality can also be accessed via the “Logical Circuits by Circuit” section of the point map (address range 10000 to 45000), regardless of the state of this selection. • Phase angle measurements: The E31 measures the phase angle of every voltage and current input and presents these measurements (in degrees) in additional data registers/objects. These values are used to verify that current inputs are assigned to the proper voltage phases and to help determine how power factor variations are influenced by current phase changes vs. harmonic distortion. Phase angle measurements are instantaneous and always active. • User CT phase assignment: In the default mode, the E31 assigns each channel to the corresponding phase that most 3-phase panels implement, so that the user does not have worry about it. The user can opt to replace this self- assignment paradigm with a mode that allows explicit specification of the phase assignment for each channel. The explicit assignments set by the user are stored by the E31 in non-volatile memory. • Phase angle reference: The E31 measures the phase angle of every current and voltage input. The user can select whether the phase angles are stated relative to an absolute reference (the phase angle of voltage input V1) or relative to the voltage phase assigned to that specific current input channel. • Signed power: Users can configure the E31 to report power as a signed value indicating whether the power is currently being delivered (imported from the grid) or received (exported to the grid) for channels with generation sources or bi-directional (regenerative) loads. When signed power is disabled, the energy accumulators include all energy measured, regardless of direction. When signed power is enabled, the energy accumulators only include all energy delivered (imported from the grid).Z205667-0G Page 8 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM • Signed power factor: By default the E31 reports power factor as an unsigned value. The user can set it to report as a signed value, where the sign indicates whether the current phase angle leads or lags the corresponding voltage phase. • Demand/snapshot time interval source: The E31 offers two mechanisms for driving the demand/snapshot time interval, an interval timer or an RTC (real-time clock). The legacy mode (default) uses an interval timer that does not need to be set to an absolute time. When using the interval timer the demand/snapshot interval can be set from 10 to 32767 seconds (over 9 hours). An alternate mode utilizes an RTC set to a specific date and time to synchronize the results with a larger system. The RTC must first be set in order to run and capture demand values and energy snapshots. When power is interrupted, the RTC resets to a default date and time and must be set again in order to run. When using the RTC, the demand/snapshot interval can be set from 10 to 3600 seconds (1 hour). Data Outputs (cont.) Monitoring of MainsE31AE31BE31C Real Time Measurements Current: multi-phase average and per phase Current phase angle Real power (kW): multi-phase total and per phase Apparent power (kVA): multi-phase total and per phase Power factor: multi-phase average and per phase Voltage - L-L: multi-phase average and per phase Voltage - L-N: multi-phase average and per phase Frequency (phase A) Demand Measurements Current present demand: multi-phase average and per phase Real Power (kW) present demand: multi-phase average and per phase Historic Maximums Maximum instantaneous current: multi-phase average and per phase Maximum current demand: multi-phase average and per phase Maximum real power demand: multi-phase total and per phase Accumulated Energy Energy (kWh): multi-phase total and per phase Energy SnapshotsEnergy (kWh): multi-phase total and per phase Monitoring of Branch Circuits Real Time Measurements Current: multi-phase average and per phase Current phase angle per branch Real power (kW): multi-phase total and per phase Apparent power (kVA): multi-phase total and per phase Power factor: multi-phase average and per phase Demand Measurements Current present demand: multi-phase average and per phase Real power (kW) present demand: multi-phase average and per phase Historic Maximums Maximum instantaneous current: multi-phase average and per phase Maximum current demand: multi-phase average and per phase Maximum real power demand: multi-phase total and per phase Accumulated Energy Energy (kWh): multi-phase total and per phase Energy SnapshotsEnergy (kWh): multi-phase total and per phase Modbus Alarms Alarms Voltage over/under Branch current over/under Mains current over/underZ205667-0G Page 9 of 23 ©2015 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 0815 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. E31 Series Installation Guide TM Split-Core CT Specifications 50 A Split-Core CT100 A Split-Core CT200 A Split-Core CT Voltage Rating300 Vac300 Vac (CE), 600 Vac (UL) 300 Vac (CE), 600 Vac (UL) Measurement Range60 A*120 A*240 A* Temperature0 to 60 °C0 to 60 °C0 to 60 °C AgencyUL508 Recognized, EN61010-1 UL508 Recognized, EN61010-1 UL508 Recognized, EN61010-1 * Momentary. Blink Codes for Status LED Color and PatternStatus Description Green, once per secondNormal operation Amber, once per secondVolts or Amps clipping Amber, twice per secondInvalid firmware image Red, solid or blinkDiagnostic event detectedNext >