Veris Industries E50C1A User manual

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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.
For use inaPollution Degree 2orbetter environment only. APollution Degree 2environmentmust
controlconductivepollutionand thepossibility ofcondensationor high humidity.Considerthe
enclosure,the correctuse ofventilation,thermalpropertiesof theequipment,and therelationshipwith
theenvironment. Installation category: CAT IIor CATIII. Provideadisconnect device to disconnect the
meter from the supply source. Placethis deviceincloseproximitytotheequipment andwithin easy
reach oftheoperator,and markitas the disconnectingdevice.Thedisconnectingdeviceshall meetthe
relevantrequirements ofIEC60947-1andIEC60947-3 and shall be suitable for the application.IntheUS
andCanada,disconnectingfuse holderscan beused.Provide overcurrentprotection anddisconecting
device for supply conductors withapproved currentlimiting devices suitableforprotectingthewiring.
If the equipmentisused ina manner notspecifiedby the manufacturer,the protectionprovided bythe
devicemaybeimpaired.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• 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.
• 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 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.
Failure to follow these instructions will result in death or serious injury.
A qualied 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 specied 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
NOTICE
• This product is not intended for life or safety applications.
• Do not install this product in hazardous or classied locations.
• The installer is responsible for conformance to all applicable codes.
• Mount this product inside a suitable re and electrical enclosure.
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 eect 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.
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 Control or its equivalent in your specic country, language, and/or location.
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.
TM
Installation Guide
Power Monitoring
The safety of any system incorporating this equipment is the responsibility of the
assembler of the system.
Product Overview
The E50C1A DIN Rail Power Meter provides a solution for measuring energy data with a single device. Inputs include
Control Power, CT, and 3-phase voltage. The E50C1A supports multiple output options, including solid state relay
contacts, Modbus, and pulse. The LCD screen on the faceplate allows instant output viewing.
The meter is housed in a plastic enclosure suitable for installation on T35 DIN rail according to EN 50022. The
E50C1A can be mounted with any orientation over the entire ambient temperature range, either on a DIN rail or in a
panel. The meter is not sensitive to CT orientation, reducing installation errors.
E50C1A
Product Identication
Model Description Output
DIN Mount (meter only) Pulse RS-485 Alarm
E50C1A Modbus output, basic data set • • •
Specications
MEASUREMENT ACCURACY
Real Power and Energy IEC 62053-22 Class 0.5S, ANSI C12.20 0.5%
Reactive Power and Energy IEC 62053-23 Class 2, 2%
Current 0.4% (+0.015% per °C deviation from 25 °C) from 5% to 100% of range;
0.8% (+0.015% per °C deviation from 25 °C) from 1% to 5% of range
Voltage 0.4% (+0.015% per °C deviation from 25 °C) from 90 VL- N to 600 VacL- L
Sample Rate 2520 samples per second
Data Update Rate 1 sec
Type of Measurement True RMS up to the 21st harmonic 60 Hz; one to three phase AC system
INPUT VOLTAGE CHARACTERISTICS
Measured AC Voltage Minimum 90 VL- N (156 VL-L) for stated accuracy;
UL Maximum: 600 VL-L (347 VL-N)
CE Maximum: 300 VL-N
Metering Over-Range +20%
Impedance 2.5 MΩL- N / 5MΩL-L
Frequency Range 45 to 65 Hz
INPUT CURRENT CHARACTERISTICS
CT Scaling 50 to 5000 A measured range; 400 to 5000 A breaker size
Measurement Input Range E683 series rope style CTs only (CTs must be rated for connection to Class 1
voltage inputs)
Compact Power and Energy Meter
For Use Only With E683 Series Rope CTs
E683 Series CT
(sold separately)

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TM
E50C1A Installation Guide
CONTROL POWER
AC 5 VA max.; 90 V min.
UL Maximum: 600 VL-L (347 VL-N)
CE Maximum: 300 VL-N
DC* 3W max.; UL and CE: 125 to 300 Vdc
Ride-through Time 100 msec at 120 Vac
OUTPUT
Alarm Contacts N.C., static output (30 Vac/dc, 100mA max. @ 25 °C, derate 0.56 mA per °C
above 25 °C)
Real Energy Pulse Contacts N.O., static output (30Vac/dc, 100 mA max. @ 25 °C, derate 0.56 mA per °C
above 25 °C)
RS-485 Port 2-wire, 1200 to 38400 baud, Modbus RTU
MECHANICAL CHARACTERISTICS
Weight 0.62 lb (0.28 kg)
IP Degree of Protection
(IEC 60529)
IP40 front display; IP20 meter
Display Characteristics Back-lit blue LCD
Terminal Block Screw Torque 0.37 to 0.44 ft-lb (0.5 to 0.6 N·m)
Terminal Block Wire Size 24 to 14 AWG (0.2 to 2.1 mm2)
Rail T35 (35mm) DIN Rail per EN 50022
OPERATING CONDITIONS
Operating Temperature Range -30 to 70 °C (-22 to 158 °F)
Storage Temperature Range -40 to 85 °C (-40 to 185 °F)
Humidity Range <95% RH non-condensing
Altitude of Operation 3000 m
Mounting Location Not suitable for wet locations. For indoor use only.
COMPLIANCE INFORMATION
US and Canada CAT III, Pollution Degree 2;
for distribution systems up to 347 VL-N /600 VacL-L
Europe (CE) IEC/EN 61010-1;
CAT III, Pollution Degree 2;
for distribution systems up to 300 VL- N
Dielectric Withstand Per UL 508, IEC/EN 61010-1
Conducted and Radiated
Emissions
FCC part 15 Class B, EN 55011/EN 61000 Class B
(residential and light industrial)
Conducted and Radiated
Immunity
EN 61000 Class A
(heavy industrial)
US and Canada (cULus) UL 508 (open type device)/CSA 22.2 No. 14-05
* External DC current limiting is required, see fuse recommendations.
Specications (cont.)

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
TM
E50C1A Installation Guide
Table of Contents Dimensions 4
Data Outputs 4
Product Diagram 5
Display Screen Diagram 5
Installation 6
Supported System Types 7
Wiring Symbols 7
Wiring 8
Control Power 9
Quick Setup Instructions 10
Solid State Output 11
User Interface Menu Abbreviations Dened 11
User Interface for Data Conguration and Alert/Reset Information 12
User Interface for Setup 13
RS-485 Communications 15
Standard Modbus Default Settings 15
Modbus Point Map Overview 16
Modbus Point Map 17
Troubleshooting 20
China RoHS Compliance Information (EFUP Table) 20

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
TM
E50C1A Installation Guide
Dimensions
4.2”
(107mm)
3.6”
(91mm)
1.5”
(39mm)
2.3”
(59mm)
1.9”
(48mm)
1.8”
(45mm)
3.6“
(91 mm)
4.2“
(107 mm)
0.2“
(4 mm)
3.9“
(99 mm)
2.4“
(61 mm)
++
+
4.3“
(109 mm)
1.2“
(31 mm) 0.3“
(8 mm)
0.4“
(10 mm)
Bottom View (DIN Mount Option) Bottom View (Screw Mount Option)
Basic Data Set (BDS):
Power (kW)
Energy (kWh)
Data Outputs

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TM
E50C1A Installation Guide
Product Diagram
Display Screen
Diagram

 Tx
Rx
ERR
♥
Screen Name or Units
Diagnostic Alert
Logo
Numeric Data
Alive Indicator
RS-485 Equipped Units Only:
Transmit Data
Receive Data
Receive Data Error
LCD Screen: Buttons:
+
–
(Up)
Select
(Right)
Next
(Down)
Select
(Left)
Back
kWh
1234.5
Alarm Energy
Two 5-character rows
of display text.
Top row alphanumeric;
Bottom row numeric only
The red Alarm LED lights when any of
the 3 phase voltages drop below the
selected threshold:
The green Energy LED lights when the
Energy pulse output contacts are
closed.
CONTROL POWER
0.1A 50/60 Hz
A B C N 1 2
Alarm Energy
NC NO + - S
OUTPUT
VA VB VC
Neutral
Earth
Control Power
UL: 90V L-N - 600V L-L CE: 90V L-N - 300V L-N
VOLTAGE INPUTS
CAT III 50/60 Hz
+
–
Pulse Loss Alarm Output Pulse Output
Modbus
Shield
(X2) A(X1) (X2) B(X1) (X2) C(X1)
IA IB IC
X2 X1 X2 X1 X2 X1
CT Inputs E683 Series Only

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TM
E50C1A Installation Guide
Installation Disconnect power prior to installation.
Reinstall any covers that are displaced during the installation before powering the unit.
Mount the meter in an appropriate electrical enclosure near equipment to be monitored.
Do not install on the load side of a Variable Frequency Drive (VFD), aka Variable Speed Drive (VSD)
or Adjustable Frequency Drive (AFD).
The meter can be mounted in two ways: on standard 35 mm DIN rail or screw-mounted to the interior surface of the enclosure.
A. DIN Rail Mounting
1. Attach the mounting clips to the underside of the housing by sliding them into the slots from the inside. The stopping pegs
must face the housing, and the outside edge of the clip must be ush with the outside edge of the housing.
2. Snap the clips onto the DIN rail. See the diagram of the underside of the housing (below).
Clip flush with
outside edge
Snap onto
DIN rail
Insert clips from inside
3. To reduce horizontal shifting across the DIN rail, use two Veris AV02 end stop clips.
B. Screw Mounting
1. Attach the mounting clips to the underside of the housing by sliding them into the slots from the outside. The stopping pegs
must face the housing, and the screw hole must be exposed on the outside of the housing.
2. Use three #8 screws (not supplied) to mount the meter to the inside of the enclosure. See the diagram of the underside of the
housing (below).
Screw holes
exposed for
mounting
Insert clips from outside

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
TM
E50C1A Installation Guide
The meter has a number of dierent possible system wiring congurations (see Wiring Diagrams, page 5). To congure the meter,
set the System Type via the User Interface or Modbus register 130 (if so equipped). The System Type tells the meter which of its
current and voltage inputs are valid, which are to be ignored, and if neutral is connected. Setting the correct System Type prevents
unwanted energy accumulation on unused inputs, selects the formula to calculate the Theoretical Maximum System Power,
and determines which phase loss algorithm is to be used. The phase loss algorithm is congured as a percent of the Line-to-Line
System Voltage (except when in System Type 10) and also calculates the expected Line to Neutral voltages for system types that
have Neutral (12 & 40).
Values that are not valid in a particular System Type will display as “----” on the User Interface or as QNAN in the Modbus registers.
CTs Voltage Connections System Type Phase Loss Measurements Wiring
Diagram
Number
of wires
Qty ID Qty ID Type Modbus
Register 130
User Interface:
SETUP>S SYS
VLL VLN Balance Diagram
number
Single-Phase Wiring
2 1 A 2 A, N L-N 10 1L + 1n AN 1
2 1 A 2 A, B L-L 11 2L AB 2
3 2 A, B 3 A, B, N L-L with N 12 2L + 1n AB AN, BN AN-BN 3
Three-Phase Wiring
3 3 A, B, C 3 A, B, C Delta 31 3L AB, BC, CA AB-BC-CA 4
4 3 A, B, C 4 A, B, C, N Grounded
Wye
40 3L + 1n AB, BC, CA AN, BN, CN AN-BN-CN &
AB-BC-CA
5, 6
Supported System
Types
To avoid distortion, use parallel wires for control power and voltage inputs.
The following symbols are used in the wiring diagrams on the following pages.
Symbol Description
Voltage Disconnect Switch
Fuse (installer is responsible for ensuring compliance with local requirements. No
fuses are included with the meter.)
Earth ground
X2
X1 Current Transducer
Potential Transformer
Protection containing a voltage disconnect switch with a fuse or disconnect circuit
breaker. The protection device must be rated for the available short-circuit current at
the connection point.
• This product is designed only for use with E683 Series current transducers (CTs).
• DO NOT USE CURRENT OUTPUT (e.g. 5A) CTs ON THIS PRODUCT.
Failure to follow these instructions can result in equipment damage.
NOTICE
RISK OF EQUIPMENT DAMAGE
Wiring Symbols

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TM
E50C1A Installation Guide
N L1
X2
X1 White
Black
A
B
C
N
X1
X2
X1
X2
X1
X2
A
B
C
Diagram 1: 1-Phase Line-to-Neutral 2- Wire
System 1 CT
Diagram 2: 1-Phase Line-to-Line 2-Wire
System 1 CT
L1 L2
X2
X1
X2
X1
A
B
C
N
A
B
C
N
White
Black
White
Black
X1
X2
X1
X2
X1
X2
L1 L2
X2
X1
A
B
C
N
A
B
C
White
Black X1
X2
X1
X2
X1
X2
Diagram 3: 1-Phase Direct Voltage Connection 2 CT
L1 L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
White
Black
White
Black
White
Black
X1
X2
X1
X2
X1
X2
Diagram 4: 3-Phase 3-Wire 3 CT no PT
Use System Type 11 (2L)
Use System Type 12 (2L + 1n) Use System Type 31 (3L)
Use System Type 10 (1L + 1n)
Wiring
RISK OF ELECTRIC SHOCK OR PERMANENT EQUIPMENT DAMAGE
CT terminals are referenced to the meter’s neutral and may be at elevated voltages:
· Do not contact meter terminals while the unit is connected
· Do not connect or short other circuits to the CT terminals
Failure to follow these instructions may cause injury, death or equipment damage.
WARNING
1. Turn o all power supplying this device and the equipment in which it is
installed before working on the device or equipment.
2. Always use a properly rated voltage sensing device to conrm that all
power is o.
3. Connect the CT output leads to the meter inputs. The white wire is the x1
lead. An arrow points to the load side.
4. Release the clasp on one side of the CT and open it on the hinge.
5. Fit the Rogowski coil around the conductor, bringing the coil ends
together.
6. Lock the coil by turning the ring clockwise as shown in the diagram
at right.
7. Reconnect power to the panel.

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TM
E50C1A Installation Guide
Control Power
Direct Connect Control Power (DC Control Power)
L1N L2 L3 1 2G
L1N L2 L3
1 2G
L1
1 2G
L2 L3
Direct Connect Control Power (Line to Neutral)
Line to Neutral from 90 Vac to 347 Vac (UL) or 300 Vac (CE)
1 2G
Control Power Transformer (CPT) Connection
Direct Connect Control Power (Line to Line)
Line to Line from 90 Vac to 600 Vac(UL). In UL installations the
lines may be oating (such as a delta). If any lines are tied to an
earth (such as a corner grounded delta), see the Line to Neutral
installation limits. In CE compliant installations, the lines must
be neutral (earth) referenced at less than 300 VacL-N
The Control Power Transformer may be wired L-N or L-L. Output to
meet meter input requirements
DC Control Power from 125 Vdc to 300 Vdc
(UL and CE max.)
Fuse Recommendations
Keep the fuses close to the power source (obey local and national code requirements).
For selecting fuses and circuit breakers, use the following criteria:
• Select current interrupt capacity based on the installation category and fault current capability.
• Select over-current protection with a time delay.
• Select a voltage rating sucient for the input voltage applied.
• Provide overcurrent protection and disconnecting means to protect the wiring. For AC installations, use Veris AH02,
AH03, AH04, or equivalent. For DC installations, provide external circuit protection. Suggested: 0.5 A, time delay fuses.
• The earth connection (G) is required for electromagnetic compatibility (EMC) and is not a protective earth ground.
L1N L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
White
Black
White
Black
White
Black
X1
X2
X1
X2
X1
X2
Diagram 5: 3-Phase 4-Wire Wye Direct Voltage Input
Connection 3 CT
Use System Type 40 (3L + 1n)
White
Black
White
Black
White
Black
L1N L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
X1
X2
X1
X2
X1
X2
Diagram 6: 3-Phase 4-Wire Wye Connection 3 CT
3 PT
Use System Type 40 (3L + 1n)
Wiring (cont.)

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TM
E50C1A Installation Guide
Quick Setup
Instructions
Use this section to enter:
• Modbus communication parameters
• CT (Current Transducer) output voltage and input current ranges
• The service type to be monitored
These instructions assume the meter is set to factory defaults. If it has been previously congured, all optional values should be
checked. For more options (i.e., Potential Transformer ratios, etc.) and the full setup instructions, see the following pages.
A. To Navigate to the Setup screens:
1. Press +
+or
–
repeatedly until SETUP screen appears.
2. Press to get to the PASWD screen.
3. Press to move through the digits. Use the +
+or
–
buttons to enter your password (the default is 00000).
4. Press to move to the rst Setup screen (S COM)
5. Use +
+or
–
to select the parameter screen you want to set.
6. After you set the parameters you want, use +
+or
–
to select the next Setup screen or to exit the Setup screens (return to
SETUP).
B. To Enter Modbus communication parameters:
1. Navigate to the S COM (set communications) Setup screen (see section A above).
2. Press to go to the ADDR screen and through the address digits. Use +
+or
–
to select the Modbus address (default is 001).
3. Press to accept the value and go to the BAUD screen. Use +
+or
–
to select the baud rate (default is 19200).
4. Press to go to the PAR screen. Use +
+or
–
to select the parity (default is NONE).
5. Press to go back to the S COM screen.
C. To Enter the CT (Current Transducer) output voltage and input current ranges:
1. Navigate to the S CT (Set Current Transducer) Setup screen (see section A above).
2. Press to go to the CT SZ screen and through the digits. Use +
+or
–
to select the CT size in amps (default is 100). accept the
value and
3. Press to accept the value and go back to the S CT screen.
D. To Enter the service type to be monitored:
1. Navigate to the S SYS (Set System) Setup screen (see section A above).
2. Press to go to the SYSTM screen. Use +
+or
–
to select the conguration (see wiring diagrams - default is 40).
Press to go back to the S SYS screen. For full setup instructions, see the conguration instructions on the following pages.

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
TM
E50C1A Installation Guide
Solid State Output The E50C1A has one normally open (NO) KY Form A output and one normally closed (NC) solid-state output. One is dedicated to energy
(Wh), and the other to Alarm.
~
=
~
=
≤ 100 mA
~
=
≤ 100 mA
Alarm Energy Output
+ – S
≤ 100 mA
LOAD
LOAD
LOAD
Power Source**
3-30 Vdc
6-30 Vac
Power Source**
3-30 Vdc
6-30 Vac
Over-Current Protective Device*
(not supplied)
The solid state pulse outputs are rated for 30 Vac/dc nom.
Maximum load current is 100 mA at 25°C. Derate 0.56 mA per °C above 25 °C.
* While the relay used for the Phase Loss contact is Normally Closed (contacts are closed when the meter is not powered), closure indicates the presence of an
alarm; either loss of phase, when the meter is powered, or loss of power when the meter is not. The contacts are open when the meter is powered and no phase
loss alarm conditions are present
** All pulse outputs and communication circuits are only intended to be connected to non-hazardous circuits (SELV or Class 2). Do not connect to hazardous
voltages.
Main Menu
IEC IEEE Description
D D Demand
MAX M Maximum Demand
P W Present Real Power
QVAR Present Reactive Power
SVA Present Apparent Power
A A Amps
UAB, UBC, UAC VAB, VBC, VAC Voltage Line to Line
V VLN Voltage Line to Neutral
PF PF Power Factor
U VLL Voltage Line to Line
HZ HZ Frequency
KSh KVAh Accumulated Apparent
Energy
KQh KVARh Accumulated Reactive
Energy
KPh KWh Accumulated Real Energy
PLOSS PLOSS Phase Loss
LOWPF LOWPF Low Power Factor Error
Main Menu
IEC IEEE Description
F ERR F ERR Frequency Error
I OVR I OVR Over Current
V OVR V OVR Over Voltage
PULSE PULSE kWh Pulse Output Overrun
(conguration error)
_PHASE _PHASE Summary Data for 1, 2, or 3
active phases
ALERT ALERT Diagnostic Alert Status
INFO INFO Unit Information
MODEL MODEL Model Number
OS OS Operating System
RS RS Reset System
SN SN Serial Number
RESET RESET Reset Data
PASWD PASWD Enter Reset or Setup
Password
ENERG ENERG Reset Energy Accumulators
DEMND DEMND Reset Demand Maximums
User Interface (UI)
Menu Abbreviations
Dened
The user can set the display mode to either IEC or IEEE notation in the SETUP menu.

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TM
E50C1A Installation Guide
User Interface forData Conguration and Alert/Reset Information
_PHAS
1, 2, or 3 Phase
Summary Data
To:
SETUP
3 KWh
Accumulated
Real Energy
ENRGY
Energy
Accumulators
and Counters
KWh
Accumulated
Real Energy
(Ph)
SETUP
ALERT
RESET
Back
Display “nOnE” if no alerts
To Setup
Setup
Meter
Reset
Data
Phase Loss
A B C
Low Power Factor
A B C
Frequency Out
of Range
A
Current
Over Range
Voltage
Over Range
A B C A B C
INFO MODEL OS SNRS
Serial
Number
Reset
System
Operating
System
ALERT
INFO
PLOSS
--------
A b C
LOWPF
--------
A b C
F ERR
--------
A
I OVR
--------
A b C
V OVR
--------
A b C
PASWD
--------
00000
PASWD
--------
00000
Model
Number
Energy Pulse Output:
Error = Overrun Error
ConF = Configuration Error
PULSE
--------
Error
ENERG
--------
rES
ResetEnergy
Accumulators to 0
Unit
Information
Alert Status
(check if
Wrench on
LCD)
RESET
Enter Reset
Password
Enter Setup
Password
To: DEMND
PASWD – Enter the Reset Password
(configured in the setup menu).
ENERG – Reset all Energy
Accumulators (Wh, VARh, VAh) to 0.
Press “+” or “-“ to Reset.

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TM
E50C1A Installation Guide
UI for Setup
Next
Next
From:
SETUP > PASWD
ADDR
--------
001
BAUD
--------
38400
19200
9600
4800
2400
1200
PAR
--------
nOnE
EvEn
Odd
Set Communications Parameters:
ADDR - Modbus Address: 1 – 247.
+ increments the selected (blinking) digit.
-selects the digit to the left.
BAUD - Baud Rate: 1200 – 38400 Baud
PAR - Parity: Odd, Even, None
+or –to step through the options.
Set Current Transducer:
CT V - CT Input Voltage: + or –to Select 1.0 or .33V.
CT SZ - CT Size: in Amps. Maximum is 32000 Amps.
Set System Configuration:
SYSTM: + or –to step through the following System Type options:
System Reg 130 CTs Description
3L-1n 40 3 Wye Three Phase: A, B, & C with Neutral (Default).
3L 31 3 Delta Three Phase: A, B & C; no Neutral
2L-1n 12 2 Single Split Phase: A & B with Neutral
2L 11 1 Single Phase: A & B; no Neutral
1L-1n 10 1 Single Phase: A to Neutral
System
Type
Current
Transformer
S SYS
Next
S CT
CT V
--------
1.0
.33
CT SZ
--------
100
SYSTM
--------
3L-1n
3L
2L-1n
2L
1L-1n
Back To SETUP
Back
Back
Back S COM
To Setup p. 2 “SPLOS”
Next
S PT
Set Potential Transfomer Ratio:
RATIO – Potential transformer step down is RATIO:1. Default is 1:1
(No PT installed). See Install for wiring diagrams. This value must be
set before the System Voltage (if used).
Potential
Transformer
RATIO
--------
001.00
Back
S V
Back
Sytem
Voltage Next
Set System Voltage:
V LL – The nominal Line to Line Voltage for the system. This is used
by the meter to calculate the theoretical maximum system power, and
as the reference voltage for setting the Phase Loss threshold.
Maximum is 32000 Volts. For system type 1+N (10), this is a Line to
Neutral Voltage, indicated by “V LN”. Note: the meter will reject settings
that are not within the meter’s operating range when divided by the PT
ratio.
V LL
--------
00600
S PWR
Back
Sytem
Voltage
MX KW
--------
103.92
Next
System Power:
MX KW – The theoretical Maximum System Power is calculated by the
meter from the System Voltage, CT size, and System Type. Power
Factor is assumed to be unity. The value of System Power is used to
determine which combinations of pulse weight and duration are valid
and will keep up with the maximum power the meter will see. This value
is read only.
Note: Bold is the Default.
To Setup p. 2 “SPASS”
RS-485
Output
† †
†
†
†
†
†
†
† When leaving this parameter screen using the right button ( ), the display will
briey indicate “SAvEd)” to conrm that any changes made have been accepted.

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TM
E50C1A Installation Guide
UI for Setup (cont.)
Next
Set Passwords:
SETUP - The Password to enter the SETUP menu.
RESET - The Password to enter the RESET menu.
RESET
--------
00000
SPASS
Setup
Passwords
SETUP
--------
00000
Back
To Setup p. 1 “S PWR”
Max
PPS
--------
1
2
5
10
20
50
Pulse
Output
Next
Set Pulse:
The System Type , CT size, PT Ratio, and System Voltage must
all be configured before setting the Pulse Energy. If any of these
parameters are changed, the meter will hunt for a new Pulse
Duration, but will not change the Pulse Energy. If it cannot find a
solution, the meter will display the wrench, show “ConF” in the
ALARM -> PULSE screen, and enable Energy pulse output
configuration error bit in the Modbus Diagnostic Alert Bitmap (if
equipped).
Wh/P - Set Pulse Energy: In Watt Hours (& VAR Hours, if
present) per Pulse. When moving down to a smaller energy, the
meter will not allow the selection if it cannot find a pulse duration
that will allow the pulse output to keep up with Theoretical
Maximum System Power (see S_PWR screen). When moving
up to a larger energy, the meter will jump to the first value where
it can find a valid solution.
mS/P – Minimum Pulse Duration Time: This read only value
is set by the meter to the slowest duration (in mS per closure)
that will keep up with the Theoretical Maximum System Power.
The open time is greater than or equal to the closure time. The
maximum Pulses Per Second (PPS) is shown in yellow.
mS/P
--------
500
250
100
50
25
10
SPULS
Back
Wh/P
--------
10000
1000
100
10
SPLOS
Back
IMBAL
--------
0.25
Next
VOLTS
--------
0.10
Set Phase Loss:
VOLTS - Phase Loss Voltage: The fraction of the system
voltage below which Phase Loss Alarm is on. For system
types with neutral, the Line to Neutral voltage is also
calculated and tested. If the System Voltage is 600 and the
fraction is set to 0.10, then the Phase Loss threshold will be
60 volts.
IMBAL - Phase Loss Imbalance: The fractional difference
in Line to Line voltages above which Phase Loss Alarm is
on. For system types with neutral, the Line to Neutral
voltages are also tested. For system types 1+N (10) and 2
(11) , imbalance is not tested.
Phase
Loss
Back To SETUP
To Setup page 1
†
†
†
†
†
†
† When leaving this parameter screen using the right button ( ), the display will
briey indicate “SAvEd)” to conrm that any changes made have been accepted.

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TM
E50C1A Installation Guide
Daisy-chaining Devices to the Power Meter
The RS-485 slave port allows the power meter to be connected in a daisy chain with up to 63 2-wire devices.
–
+
S
120 Ω terminator on the rst and last
device of the daisy chain
Shield wire
Notes
• The terminal’s voltage and current ratings are compliant with the requirements of the EIA RS-485 communications
standard.
• The RS-485 transceivers are ¼ unit load or less.
• RS-485+ has a 47 k pull up to +5V, and RS-485- has a 47 k pull down to Shield (RS-485 signal ground).
• Wire the RS-485 bus as a daisy chain from device to device, without any stubs. Use 120  termination resistors at each
end of the bus (not included).
• Shield is not internally connected to Earth Ground.
• Connect Shield to Earth Ground somewhere on the RS-485 bus.
For all terminals:
• When tightening terminals, apply the correct torque: 0.37 to 0.44
ft·lb (0.5-0.6 N·m).
• Use 14-24 gauge (2.1-0.2 mm2) wire.
RS-485
Communications
Red
Black
Gray
0.37 to 0.44 ft-lb
(0.5 to 0.6 N-m)
Use 14 to 24 gauge wire
Standard Modbus
Default Settings
Setting Value Modbus
Register
Setup Password 00000 
Reset Password 00000 
System Type 40 (3 + N) Wye 130
CT Primary Ratio (if CTs are not included) 100A 131
CT Secondary Ratio 1V 132
PT Ratio 1:1 (none) 133
System Voltage 600 V L-L 134
Max. Theoretical Power
(Analog Output: full scale (20mA or 5V))
104 kW 135
Display Mode 1 (IEEE) 137
Phase Loss 10% of SystemVoltage (60V), 25% Phase to Phase Imbalance 142, 143
Pulse Energy 1 (kWh/pulse) 144
Modbus Address 001 
Modbus Baud Rate 19200 baud 
Modbus Parity None 

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TM
E50C1A Installation Guide
Modbus Point Map
Overview
The E50C1A Basic Data Set (BDS) features Wh and VARh accumulators. The meter supports variable CTs and PTs, allowing a much
wider range of operation from 90V x 5A up to 32000V x 5000A. To promote this, the meter permits variable scaling of the 16-bit
integer registers via the scale registers. The 32-bit oating point registers do not need to be scaled.
Integer registers begin at 001 (0x001). Floats at 257 (0x101). Conguration registers at 129 (0x081). Values not supported in a
particular System Type conguration will report QNAN (0x8000 in Integer Registers, 0x7FC00000 in Floating Point Registers).
Supported Modbus Commands
Note: ID String information varies from model to model. Text shown here is an example.
Command Description
0x03 Read Holding Registers
0x04 Read Input Registers
0x06 Preset Single Register
0x10 Preset Multiple Registers
0x11
Report ID
Return string:
byte0: address
byte1: 0x11
byte2: #bytes following w/out crc
byte3: ID byte = 247
byte4: status = 0xFF if the operating system is used; status = 0x00 if the reset system is used
bytes5+: ID string =“Veris Industries E50xx Power Meter Full Data Set” or“Veris Industries E50xx Power Meter - RESET
SYSTEM RUNNING RSVersion x.xxx”last 2 bytes: CRC
0x2B
Read Device Identication, BASIC implementation (0x00, 0x01 and 0x02 data), Conformity Level 1.
Object values:
0x01:“Veris Industries”
0x02:“ E50xx”
0x03:“Vxx.yyy”, where xx.yyy is the OS version number (reformatted version of the Modbus register #7001, (Firmware
Version, Operating System).
If register #7001 == 12345, then the 0x03 data would be“V12.345”).
Legend
The following table lists the addresses assigned to each data point. For oating point format variables, each data point appears
twice because two 16-bit addresses are required to hold a 32-bit oat value.
R/W R=read only; R/W=read from either int or oat formats, write only to integer format.
NV Value is stored in non-volatile memory.The value will still be available if the meter experiences a power loss and reset.
Format
UInt Unsigned 16-bit integer.
SInt Signed 16-bit integer.
ULong Unsigned 32-bit integer; Upper 16-bits (MSR) in lowest-numbered / rst listed register (001/002 = MSR/LSR).
Float 32-bit oating point; Upper 16-bits (MSR) in lowest-numbered / rst listed register (257/258 = MSR/LSR). Encoding
is per IEEE standard 754 single precision.
Units Lists the physical units that a register holds.
Scale Factor Some Integer values must be multiplied by a constant scale factor (typically a fraction), to be read correctly.This is done to allow
integer numbers to represent fractional numbers.
Range Denes the limit of the values that a register can contain.

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TM
E50C1A Installation Guide
Modbus Point Map
E50C1 REG.
R/W NV Format Units Scale Range Description
Integer Data
001 R NV ULong kWh E0-0xFFFF Real Energy Consumption (MSR) Clear via reset register
002 0-0xFFFF Real Energy Consumption (LSR)
003 R UInt kW W 0-32767 Total Instantaneous Real Power (3 PhaseTotal)
Conguration
129 R/W UInt N/A
Command Register:
- Write 30078 (0x757E) to clear all Energy Accumulators to 0.
- Write 16498 (0x4072) to Clear Pulse Counters to 0.
- Read always returns 0.
130 R/W NV UInt
10,
11,
12,
31,
40
Single Phase: A + N
System Type
(See Manual. Note: only the indicated
phases are monitored for Phase Loss)
Single Phase: A + B
Single Split Phase: A + B + N
3 phase ∆, A + B + C, no N
3 phase Y, A + B + C + N
131 R/W NV UInt Amps 1-5000 CT Ratio – Primary
Current Inputs
132 R/W NV UInt 1, 3 CT Ratio – Secondary Interface
133 R/W NV UInt 100 0.01-320.00 PT Ratio: The meter scales this value by 100 (i.e. entering 200 yields a potential transformer ratio of 2:1). The
default is 100 (1.00:1), which is with no PT attached. Set this value before setting the system voltage (below)
134 R/W NV UInt 82-32000
SystemVoltage: This voltage is line to line, except for system type 10 which is line to neutral. The meter uses
this value to calculate the full scale power for the analog outputs and pulse conguration (below), and as full
scale for phase loss (register 142).The meter will refuse voltages that are outside the range of 82-660 volts
when divided by the PT Ratio (above).
135 R NV UInt kW W 1-32767
Theoretical Maximum System Power: This read-only value is the theoretical max. power the meter can expect to
see on a service. This value is 100% of scale on the analog output (0-5VDC or 4-20mA), if equipped.The meter
recalculates this value if the user changes the CT size, system type, or system voltage. This integer value has
the same scale as other integer power registers (see register 140 for power scaling).
136 R UInt Reserved, always returns 0
137 R/W NV UInt 0,1 Display Units: 0 = IEC (U, V, P, Q, S), 1 = IEEE (default: VLL,VLN, W, VAR, VA)
138 R SInt -4 0.0001
-3 0.001
-2 0.01
-1 0.1
0 1.0
1 10.0
2 100.0
3 1000.0
4 10000.0
Scale Factor I (Current) Scale Factors
Note:These registers contain a signed
integer, which scales the corresponding
integer registers. Floating point registers
are not scaled. Scaling is recalculated
when the meter conguration is changed.
139 R SInt Scale FactorV (Voltage)
140 R SInt Scale FactorW (Power)
141 R SInt Scale Factor E (Energy)

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TM
E50C1A Installation Guide
E50C1 REG.
R/W NV Format Units Scale Range Description
142 R/W NV UInt % 1-99
Phase LossVoltageThreshold in percent of system voltage (register
134). Default is 10 (%). Any phase (as congured in register 130)
that drops below this threshold triggers a Phase Loss alert - i.e.
if the System voltage is set to 480 V L-L, the L-N voltage for each
phase should be 277 V. When the threshold is set to 10%, if any
phase drops more than 10% below 277 V, (less than 249 V), or
if any L-L voltage drops more than 10% below 480 V (less than
432 V) the corresponding phase loss alarm bit in register 146 will
be true.
Phase Loss Output
Note:The phases tested are determined by
the System Type.
143 R/W NV UInt % 1-99
Phase Loss ImbalanceThreshold in Percent. Default is 25% phase
to phase dierence. For a 3-phaseY (3 + N) system type (40 in
register 130), both Line to Neutral and Line to Line voltages are
tested. In a 3-phase  System type (31 in register 130), only Line
to Line voltages are examined. In a single split-phase (2 + N)
system type (12 in register 130), just the line to neutral voltage
are compared.
144 R/W NV UInt Wh
10000,
1000,
100,
10
Wh (& VARh, if equipped with
FDS) Energy per Pulse Output
Contact Closure. If the meter
cannot nd a pulse duration
that will keep up with the max.
system power (register 135), it
will reject the new value.Try a
larger value. kWh Pulse Contacts
Note:The kWh pulse contact can keep up with a maximum power (Watts) of
1800000 x Wh pulse weight ÷ contact closure duration (in mses)
145 R NV UInt ms
500,
250,
100,
50,
25,
10
Pulse Contact Closure Duration
in msec. Read-only. Set to the
slowest duration that will keep
up with the theoretical max.
system power (register 135).
The open time ≥ the closure
time, so the max. pulse rate
(pulses per sec) is the inverse of
double the pulse time.
146 R UInt
Diagnostic Alert Bitmap. 1 = Active:
Bit 0: Phase A Voltage out of range
Bit 1: Phase B Voltage out of range
Bit 2: Phase C Voltage out of range
Bit 3: Phase A Current out of range
Bit 4: Phase B Current out of range
Bit 5: Phase C Current out of range
Bit 6: Frequency out of the range of 45 – 65 Hz OR there is insucient voltage to determine frequency.
Bit 7: Reserved for future use
Bit 8: Phase Loss A
Bit 9: Phase Loss B
Bit 10: Phase Loss C
Bit 11: Low Power Factor on A with one or more phases having a PF less than 0.5 due to mis-wiring of phases
Bit 12: Low Power Factor on B
Bit 13: Low Power Factor on C
Bit 14: Energy pulse output overrun error. The pulse outputs are unable to keep up with the total real power
(registers 3 and 261/262).To x, increase the pulse energy register (register 144) and reset the energy
accumulators (see reset register 129).
Bit 15: Energy pulse output conguration error (present pulse energy setting may not keep up with the
theoretical max. system power; see register 135).To x, increase the pulse energy (register 144).
147 R NV UInt 0-32767 Count of Energy Accumulator resets
148 R UInt Reserved (returns 0)
151 R/W UInt 1-32767 Reserved (returns 0)
Modbus Point Map (cont.)

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TM
E50C1A Installation Guide
E50C1 REG.
R/W NV Format Units Scale Range Description
152 R/W NV UInt 0-32767 Power Up Counter.
153 R NV UInt 0-32767 Output Conguration. E50C1 always returns 0
154 R UInt Reserved, returns 0
Floating Point Data
257/258 R NV Float kWh Real Energy Consumption (clear via reset register)
259/260 R NV Float kWh Real Energy Consumption (clear via reset register)
261/262 R Float kW Total Instantaneous Real Power
Invalid or Quiet Not A Number (QNAN) conditions are indicated by 0x8000 (negative zero) for 16 bit integers and 0x7FC00000 for 32 bit oating point numbers.
Floating point numbers are encoded per the IEEE 754 32-bit specications.
Modbus Point Map (cont.)

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TM
E50C1A Installation Guide
Problem Cause Solution
The maintenance wrench icon
appears in the power meter display.
There is a problem with the
inputs to the power meter.
See the Alert sub-menu or the Diagnostic Alert Modbus Register
146
The display is blank after applying
control power to the meter.
The meter is not receiving
adequate power.
Verify that the meter control power are receiving the required
voltage.
Verify that the heart icon is blinking.
Check the fuse.
The data displayed is inaccurate.
Incorrect setup values Verify the values entered for power meter setup parameters (CT
and PT ratings, system type, etc.). See the Setup section.
Incorrect voltage inputs Check power meter voltage input terminals to verify adequate
voltage.
Power meter is wired
improperly.
Check all CTs and PTs to verify correct connection to the same
service, PT polarity, and adequate powering. See the Wiring
Diagrams section for more information.
Cannot communicate with power
meter from a remote personal
computer.
Power meter address is incorrect. Verify that the meter is correctly addressed (see Setup section).
Power meter baud rate is
incorrect.
Verify that the baud rate of the meter matches that of all other
devices on its communications link (see Setup section).
Communications lines are
improperly connected.
Verify the power meter communications connections (see the
Communications section).
Verify the terminating resistors are properly installed on both ends
of a chain of units. Units in the middle of a chain should not have
a terminator.
Verify the shield ground is connected between all units.
Troubleshooting
China RoHS
Compliance
Information -
Environment Friendly
Use Period (EFUP)
Table
本表格依据SJ/T11364的规定编制。
O: 表示该有害物质在该部件所有均质材料中的含量均在GB/T 26572规定的限量要求以下。
X: 表示该有害物质至少在该部件的某一均质材料中的含量超出 GB/T 26572规定的限量要求。
（企业可在此处，根据实际情况对上表中打 的技术原因进行进一步说明。）
This table is made according to SJ/T 11364.
O: indicates that the concentraon of hazardous substance in all of the homogeneous materials for this part is below
the limit as spulated in GB/T 26572.
X: indicates that concentraon of hazardous substance in at least one of the homogeneous materials used for this part
X O O O O O
is above the limit as spulated in GB/T 26572
Z000057-0B
部件名称
Part Name
有害物质-Hazardous Substances
铅(Pb) 汞(Hg) 镉(Cd) 六价铬(Cr (VI)) 多溴联苯 (PBB) 多溴二苯醚(PBDE)
电子件
Electronic