Accuenergy AcuPanel 9104X-II-5A-P1-WEB-PUSH, AcuPanel 9104X-II-5A-P3-WEB-PUSH, AcuPanel 9104X-IIR-5A-P1-WEB-PUSH, AcuPanel 9104X-IIR-RCT-P1, AcuPanel 9104X-IIR-RCT-P3 User manual
...Page 1
Acuvim II Series
User's Manual
Power Meter
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Page 2
V: 3.0 Revised: November 2022
The information contained in this document is believed to be accurate at the time
of publication, however, Accuenergy assumes no responsibility for any errors which may
appear here and reserves the right to make changes without notice. Please ask the local
representative for latest product specications before ordering.
Please read this manual carefully before installation, operation and maintenance of the
Acuvim II Series Power Meter. The following symbols in this manual are used to provide warning
of danger or risk during the installation and operation of the equipment.
Electric Shock Symbol: Carries information about procedures which must be followed
to reduce the risk of electric shock and danger to personal health.
Safety Alert Symbol: Carries information about circumstances which if not considered
may result in injury or death.
Prior to maintenance and repair, the equipment must be de-energized and grounded. All
maintenance work must be performed by qualified, competent accredited professionals who
have received formal training and have experience with high voltage and current devices.
Accuenergy shall not be responsible or liable for any damages or injuries caused by improper
meter installation and/or operation.
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Table of Contents
Chapter 1: Introduction ........................................................................................7
1.1 Meter Overview.............................................................................................................7
1.2 Areas of Application ..................................................................................................... 8
1.3 Functionality .................................................................................................................. 9
Chapter 2: Installation .........................................................................................14
2.1 Appearance and Dimensions .................................................................................... 16
2.2 Installation Methods ..................................................................................................18
2.3 Wiring ........................................................................................................................... 22
2.3.1 Power Requirement ........................................................................................22
2.3.2 Voltage Input Wiring ........................................................................................ 23
2.3.3 Current Input Wiring ....................................................................................... 27
2.3.4 Typical Wiring ................................................................................................... 29
2.3.5 Frequently Used Wiring Methods .................................................................. 30
2.3.6 Communication ...............................................................................................32
Chapter 3: Meter Display & Parameter Settings ..............................................34
3.1 Display Panel and Keys .............................................................................................. 34
3.2 Metering Data .............................................................................................................36
3.2.1 Voltage and Current Data ............................................................................... 36
3.2.2 Power, Power Factor, and Frequency ...........................................................39
3.2.3 Phase Angles and Unbalance ......................................................................... 40
3.2.4 Energy ............................................................................................................... 41
3.2.5 TOU Display ...................................................................................................... 43
3.3 Statistical Data ............................................................................................................45
3.4 Demand Data .............................................................................................................. 46
3.5 Harmonic Data ............................................................................................................ 47
3.5.1 Power Quality Data .........................................................................................47
3.5.2 Individual Harmonic Data ............................................................................... 48
3.6 Expanded I/O Module Data ....................................................................................... 50
3.6.1 Module Selection ............................................................................................. 50
3.7 Meter Setting Mode .................................................................................................... 53
3.7.1 Password Inquiry ............................................................................................. 53
3.7.2 Parameter Selection Mode ............................................................................. 53
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3.7.3 System Settings ................................................................................................54
3.7.4 I/O Module Settings ......................................................................................... 57
3.7.5 Communications Module Settings ................................................................59
3.7.6 Alarm Settings .................................................................................................. 63
3.8 Page Recovery Function ............................................................................................. 64
Chapter 4: Detailed Functions and Software ...................................................65
4.1 Acuview Software .......................................................................................................65
4.1.1 Connect using RS485 ......................................................................................65
4.2 Basic Analog Measurements ..................................................................................... 68
4.2.1 High Speed Monitoring ................................................................................... 69
4.3 Demand .......................................................................................................................70
4.4 Energy ..........................................................................................................................71
4.5 Max/Min ....................................................................................................................... 72
4.6 Harmonics and Power Quality Analysis ................................................................... 73
4.6.1 Harmonics & THD ............................................................................................ 73
4.6.2 Amplitude and Angle ....................................................................................... 74
4.6.3 Phase Angles .................................................................................................... 75
4.6.4 Sequence Component and Unbalance Analysis ..........................................76
4.7 Alarm ............................................................................................................................ 78
4.7.1 Alarm Log .........................................................................................................81
4.8 Meter Settings ............................................................................................................. 83
4.8.1 Communication ...............................................................................................84
4.8.2 Wiring, CT/PT Ratios ........................................................................................ 84
4.8.3 Demand Settings ............................................................................................. 86
4.8.4 Energy Reading & Power Factor Settings .....................................................86
4.8.5 Load Percentage .............................................................................................. 87
4.9 Time & Date Conguration ........................................................................................ 88
4.10 Data Logging .............................................................................................................89
4.10.1 Data Log Setting ............................................................................................89
4.10.2 Retrieving the Data Log ................................................................................92
4.11 Time-of-Use (TOU) .................................................................................................... 93
4.11.1 General TOU Setting .....................................................................................93
4.11.2 Monthly Billing Mode .................................................................................... 95
4.11.3 TOU Seasons .................................................................................................. 95
4.11.4 TOU Schedule ................................................................................................96
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4.11.5 Weekend Settings .......................................................................................... 97
4.11.6 Holiday Settings ............................................................................................. 98
4.11.7 DST Settings .................................................................................................101
4.11.8 Reading the TOU data .................................................................................101
4.12 Power Quality Event Logging and Waveform Capture.......................................104
4.12.1 Waveform Capture ......................................................................................105
4.12.2 Power Quality Event Logging .....................................................................107
4.12.3 Waveform Retrieval .....................................................................................107
4.13 Dual Source Energy ................................................................................................110
4.13.1 Controlling the Energy Direction ...............................................................111
4.13.2 Bi-Directional Energy Switching Record ...................................................112
4.14 Seal Function ...........................................................................................................112
4.14.1 Sealed Nonstandard Parameters ..............................................................114
Chapter 5: Extended Modules ......................................................................... 119
5.1 I/O Modules ...............................................................................................................119
5.1.1 Appearance and Dimensions .......................................................................119
5.1.2 I/O Functionality ............................................................................................120
5.1.3 Installation Method .......................................................................................123
5.1.4 I/O Module Wiring .........................................................................................125
5.1.5 IO Module Readings ......................................................................................131
5.1.6 Detection of Remote Signals ........................................................................131
5.1.7 Pulse Counter.................................................................................................134
5.1.8 Relay Output ..................................................................................................138
5.1.9 Digital Output .................................................................................................140
5.1.10 Analog Output .............................................................................................144
5.1.11 Analog Input .................................................................................................148
5.2 Probus Module AXM-PROFI ...................................................................................151
5.2.1 Introduction of PROFIBUS Technology .......................................................151
5.2.2 PROFIBUS module application notes ..........................................................151
5.2.3 Appearance and Dimensions .......................................................................152
5.2.4 Installation Method .......................................................................................152
5.2.5 Denition of DP Interface .............................................................................153
5.2.6 Cable ...............................................................................................................153
5.2.7 Bus Terminal ..................................................................................................153
5.2.8 Address Setting ..............................................................................................154
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5.2.9 Baud Rate .......................................................................................................155
5.2.10 GSD Files .......................................................................................................155
5.2.11 Information Exchange ................................................................................155
5.2.12 Format of Function code 01H ....................................................................156
5.2.13 Format of function code 05H .....................................................................157
5.2.14 Format of function code 02H .....................................................................158
5.2.15 Format of function code 03H .....................................................................159
5.2.16 Format of function code 10H .....................................................................161
5.2.17 32 Word Output Interface ..........................................................................162
5.3 RS485 Module (AXM-485) ........................................................................................163
5.3.1 Communication Parameters Setting ...........................................................163
5.3.2 Function Description of RS485 module ......................................................163
5.3.3 Appearance and Dimensions .......................................................................164
5.3.4 Installation Method .......................................................................................164
5.3.5 Connection Method ......................................................................................165
5.3.6 Communication Address ..............................................................................166
Chapter 6: Communication Part I ................................................................... 167
6.1 Modbus Protocol Introduction ................................................................................167
6.2 Communication Format ...........................................................................................169
6.3 Data Address Table and Application Details .........................................................173
6.3.1 Data Type........................................................................................................173
6.3.2 Relationship between communication value and numerical value ........173
6.3.3 System Parameter Setting ............................................................................175
6.3.4 System Status Parameters ...........................................................................178
6.3.5 Date and Time Registers ...............................................................................180
6.3.6 100ms Refresh Metering Parameters .........................................................180
6.3.7 Real Time Metering Parameters ..................................................................182
6.3.8 Energy Parameters ........................................................................................185
6.3.9 TOU (Time-of-Use) Registers ........................................................................187
6.3.10 Power Quality Parameters .........................................................................203
6.3.11 Max & Min Values ........................................................................................220
6.3.12 Phase Angles ................................................................................................226
6.3.13 Sequence Component ................................................................................226
6.3.14 I/O Module Settings ....................................................................................227
6.3.15 I/O Module Readings Settings....................................................................233
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6.3.16 SunSpec Registers .......................................................................................239
Chapter 6: Communication Part II .................................................................. 244
6.3.17 Over/Under Alarm Setting ..........................................................................244
6.3.18 Data Logging ................................................................................................253
6.3.19 Time-of-Use ..................................................................................................260
Appendix ............................................................................................................ 289
Appendix A Technical Data and Specications .................................................289
Appendix B Ordering Information ........................................................................294
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Chapter 1: Introduction
Chapter 1: Introduction
1.1 Meter Overview
Powerful Multi-function Power Meter
The Acuvim II series multi-function digital power meter is designed using MCU (micro controller
unit) and DSP (digital signal processing) technology. It integrates three-phase energy measuring
and displaying, energy accumulating, power quality analysis, over-under alarming, data logging,
and network communication. A vivid LCD with large characters and a time-of-use, programmable
backlight provides a clear, real-time data readout.
Ideal for Electric Automation SCADA Systems
The Acuvim II series meter is the ideal choice for replacing traditional analog meters. In addition to
providing clear real-time readings on the meter display, it can also be used as a remote terminal unit
(RTU) for monitoring and controlling a SCADA system. Users can access all measurement parameters
via the standard RS485 communication port (or the optional Ethernet port) with the Modbus protocol.
Energy Management
The Acuvim II series meter is able to measure bidirectional energy as well as four quadrant energy
(kWh) and reactive energy (kvarh). It provides maximum/minimum records for power usage
and power demand parameters. All power and energy parameters can be viewed remotely via
software in order to easily monitor various parameters. In addition, measurement tables can be
viewed from our free Acuview software.
Remote Power Control
This meter is designed to measure and monitor power quality parameters. There are dierent
I/O modules that can be added to the meter. This expands the meters capabilities and provides
a very exible platform for using the meter as a distributed RTU for metering, monitoring, and
remote controlling all in one unit.
Power Quality Analysis
By utilizing digital signal processing (DSP) technology, the Acuvim II series meter provides high accuracy
power quality analysis and supports remote monitoring via the Ethernet module. The meter continuously
updates the metering results and allows users to access the meter online to monitor parameters such as
voltage and current harmonics, voltage and current crest factors, voltage and current unbalance factors etc.
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Data Logging
The Acuvim IIR meter and Acuvim IIW meter contain 8MB (megabytes) of on-board memory for
data logging and historical trending respectively. Since the meters contain real-time clocks, all
events and logged data will include a timestamp of when data is recorded.
Time-of-Use
Users can assign up to 4 dierent taris (sharp, peak, valley, normal) to dierent time periods
within a day according to the billing requirements. The meter will calculate and accumulate
energy to dierent taris according to the meters internal clock and TOU settings.
Power Quality Event Logging
When a power quality event occurs, such as voltage sag or swell etc, the Acuvim IIW meter will
record the timestamp and the triggering condition of the event. It can save up to 50,000 power
quality events.
Waveform Capture
The Acuvim IIW contains another 8MB (megabytes) of on-board memory for power quality event
logging and waveform capture. The Acuvim IIW can record 100 groups of voltage and current
waveform. It logs at 64 points per cycle, and provides the waveform record of 10 cycles before
and after the triggering point. It also supports a settable triggering condition.
1.2 Areas of Application
• Power Distribution Automation
• Industry Automation
• Energy Management Systems
• Renewable Energy
• Electric Switch Gear and Control Panels
• Building Automation
• Marine Applications
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Chapter 1: Introduction
1.3 Functionality
Multi-function
The Acuvim II meters provide powerful data collection and processing functions. In addition to
measuring various parameters, the meter is able to perform demand metering, harmonic analysis,
max/min statistic recording, over/under limit alarming, energy accumulating, and data logging.
High Accuracy
The accuracy of voltage and current is 0.1% True-RMS.
The accuracy of power and energy is 0.1% while monitoring all four quadrants.
Compact and Easy to Install
This meter can be installed into a standard ANSI C39.1 (4" round) or an IEC 92mm DIN (square)
cutout. With the 51mm depth after mounting, the Acuvim II series meter can be installed in a
small cabinet. Mounting clips are used for easy installation and removal.
Easy to Use
All metering data and setting parameters can be accessed by using the keys on the front panel
of the meter or by using Modbus via the communication port. Setting parameters are in the
EEPROM (Electrical Erasable Programmable Read-Only Memory) so that content will be preserved
when the meter is powered o.
Multiple Wiring Modes
The Acuvim II series meter can be used in high voltage, low voltage, three-phase three wires,
three-phase four wires and single-phase systems using dierent wiring mode settings.
High Safety, High Reliability
The Acuvim II series meter was designed according to industrial standards. It can run reliably
under high power disturbance conditions. This meter has been fully tested for EMC and safety
compliance in accordance with UL and IEC standards.
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Function Comparison of Acuvim II Series Meter
Metering
TOU
Category Items Parameters
Phase Voltage V1, V2, V3, Vlnavg
Line Voltage V12, V23, V31, Vllavg
Current I1, I2, I3, In, Iavg
Power P1, P2, P3, Psum
Real-Time Metering
Energy & Demand
Time-of-Use
Daylight Saving Time
Waveform Capture
(Not applicable on
400Hz systems)
Reactive Power Q1, Q2, Q3, Qsum
Apparent Power S1, S2, S3, Ssum
Power Factor PF1, PF2, PF3, PF
Frequency F
Load Features Load Features
Four Quadrant
Power
Energy
Reactive Energy
Apparent
Energy
Demand
Energy/Max
Demand
Two Formats
Adjust
Voltage and
Current
Waveform
Four Quadrant Powers
Ep_Imp, Ep_exp, Ep_total, Ep_net, Epa_Imp,
Epa_Exp, Epb_Imp, Epb_Exp, Eqc_Imp, Eqc_
Exp
Eq_Imp, Eq_Exp, Eq_total, Eq_net, Eqa_Imp,
Eqa_Exp, Eqb_Imp, Eqb_Exp, Eqc_Imp, Eqc_
Exp
Es, Esa, Esb, Esc
Dmd_P, Dmd_Q, Dmd_S, Dmd_I1, Dmd_I2,
Dmd_I3
TOU, 4 Taris, 12 Seasons, 14 Schedules
Month/Day/Hour/Minute, Month/Week/First
few weeks/Hour/Minute
Trigger, Manual, DI change, Sag/Dip, Swell,
Overcurrent
Acuvim
IIR
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
Acuvim
IIW
•
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Chapter 1: Introduction
Monitoring
Others
Category Items Parameters
Voltage
Power Quality
Statistics
Alarm
Power Quality Event
Logging (N/A on
400Hz systems)
Unbalance
Factor
Current
Unbalance
Factor
Voltage THD THD_V1, THD_V2, THD_V3, THD_Vavg
Current THD THD_I1, THD_I2, THD_I3, THD_Iavg
Individual
Harmonics
Voltage Crest
Factor
TIF THFF
Current K Factor K Factor
MAX with
Timestamp MIN
with Timestamp
Over/Under
Limit Alarm
Sag/Dip, Swell Voltage
U_unbl
I_unbl
Harmonics 2nd to 63rd
if 400Hz Harmonics 2nd to 15th
Crest Factor
Each phase of V & I;
Total of P, Q, S, PF & F;
Each phase THD of V & I;
Unbalance factor of V & I
V, I, P, Q, S, PF, V_THD & I_THD each phase
and total average;
Unbalance factor of V & I;
Load type;
Analog Input of each channel
Acuvim
IIR
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
Acuvim
IIW
•
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Others
Option
Module
Category Items Parameters
F, V1/2/3/lnavg, V12/23/13/lavg, I1/2/3/n/
avg, P1/2/3/sum, Q1/2/3/sum, S1/2/3/sum,
PF1/2/3, PF, U_unbl, I_unbl, Load Type,
Ep_imp, Ep_exp, Ep_total, Ep_net, Eq_imp,
Data Logging 1
Data Logging
On-board Memory
Size
Communication
Time Real Time Clock Year, Month, Date, Hour, Minute, Second
400Hz
I/O Option
Communication
Data Logging 2
Data Logging 3
Memory Bytes
RS485 Port, Half
Duplex, Optical
Isolated
Switch Status
(DI)
Power Supply for
DI
Relay Output
(RO)
Digital Output
(DO)
Pulse Output
(PO)
Analog Input (AI) 0(4)~20mA, 0(1)~5V
Analog Output
(AO)
Ethernet Modbus-TCP, HTTP, SNMP, SMTP, SNTP
Probus-DP Probus-DP/V0
The second way
RS485 Module
BACnet IP
: Function ° : Optional Blank: N/A
•
Eq_exp, Eq_total, Eq_net, Es, THD_V1/2/3/
avg, THD_I1/2/3/avg, Harmonics 2nd to 63rd,
Crest Factor, THFF, K Factor, sequence and
phase angles, DI counter, AI, AO, Dmd P/Q/S,
Dmd I1/2/3Epa_imp; Epa_exp; Epb_imp;
Epb_exp; Epc_imp; Epc_exp; Eqa_imp;
Eqa_exp; Eqb_imp; Eqb_exp; Eqc_imp;
Eqc_
exp; Esa; Esb; Esc
Modbus-RTU/BACnet MSTP
Only support full-wave energy, support 2nd ~
15th individual harmonics
Digital Input (Wet)
24 Vdc
NO, Form A
Photo-Mos
By Using DO
0(4)~20mA, 0(1)~5V
Modbus-RTU Protocol
Acuvim
Acuvim
IIR
IIW
• •
8MB 16MB
• •
• •
•
° °
° °
° °
° °
° °
° °
° °
° °
° °
° °
° °
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Chapter 1: Introduction
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Chapter 2: Installation
Considerations When Installing Meters
• Installation of the meter must be performed by qualied personnel only, who follows standard
safety precautions through the installation procedures. Those personnel should have the
appropriate training and experience with high voltage devices. Appropriate safety gloves, safety
glasses and protective clothing are recommended.
• During normal operation, dangerous voltage may flow through many parts of the meter
including the terminals, any connected Current Transformers (CTs) or Potential Transformers
(PTs), all I/O modules and their circuits. All primary and secondary circuits can produce lethal
voltages and currents. AVOID contact with any current carrying surfaces.
• The meter and its I/O output channels are NOT designed as primary protection devices and
shall NOT be used in primary circuit protection or in an energy limiting capacity. The meter
and its I/O output channels can only be used as secondary protection. AVOID using the meter
under situations where failure of the meter may cause injury or death. AVOID using the meter
for any application where risk of re may occur.
• All meter terminals should be inaccessible after installation.
• Do NOT perform Dielectric (HIPOT) test to any inputs, outputs, or communications terminals.
High voltage testing may damage the meter’s electronic components.
• Applying more than the maximum voltage to the meter and/or its modules can withstand will
permanently damage the meter and/or its modules. Please refer to the specications for all
devices before applying voltage.
• When removing the meter for service, use shorting blocks and fuses for the voltage leads and
power supply to prevent hazardous voltage conditions or damage to CTs. CT grounding is
optional.
• Accuenergy recommends using a dry cloth to wipe the meter.
NOTE: IF THE EQUIPMENT IS USED IN A MANNER NOT SPECIFIED BY THE
MANUFACTURER, THE PROTECTION PROVIDED BY THE EQUIPMENT MAY BE
IMPAIRED.
NOTE: THERE IS NO REQUIRED PREVENTIVE MAINTENANCE OR INSPECTION
NECESSARY FOR SAFETY. HOWEVER, ANY REPAIR OR MAINTENANCE SHOULD BE
PERFORMED BY THE FACTORY.
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Chapter 2: Installation
DISCONNECT DEVICE: The following part is considered the equipment disconnect device:
A SWITCH OR CIRCUIT-BREAKER SHALL BE INCLUDED IN THE INSTALLATION. THE SWITCH
SHALL BE IN CLOSE PROXIMITY TO THE EQUIPMENT AND WITHIN EASY REACH OF THE
OPERATOR. THE SWITCH SHALL BE MARKED AS THE DISCONNECT DEVICE FOR THE
EQUIPMENT.
FCC Compliance Statement (e.g., products subject to Part 15)
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.
The installation method is introduced in this chapter. Please read this chapter carefully before
beginning installation.
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2.1 Appearance and Dimensions
There are two dierent types of Acuvim II meter design, either panel mount with an LCD display
or DIN rail mount with no display. The following gures provide the front view, side view, and rear
view of the two dierent Acuvim II series meters.
1
2
12
3
Figure 2-1 Front view of the Meter Display and
Remote Display Unit
4
Figure 2-3 Side View of Meter
With Display
16
Figure 2-4 Side View of
Remote Display Unit
Unit: mm (inches)
Figure 2-2 Rubber Gasket
5
Figure 2-5 Side View of DIN
Rail Meter
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Chapter 2: Installation
6
8
9
7
10
Figure 2-6 Rear View of Acuvim II Meter Figure 2-7 Rear View of Remote Display
11
The table below species the part name and description of the Acuvim II series meter.
Table 2-1 Meter Part Name and Description
Part Name Description
1) LCD Display Large bright white backlight LCD display.
2) Front Casing Visible portion (for display and control) after mounting onto a panel.
3) Key Four keys are used to navigate through the display and congure settings.
4) Enclosure
5) DIN rail Used for installation of 35mm rail of the DIN rail meter.
6) Voltage Input Terminals Used for voltage input.
7) Current Input Terminals Used for current input.
8) Power Supply Terminals The Control Power Input.
9) Communication Terminals The RS485 communication port on the meter.
10) Interface Used for linking the remote display unit and the DIN rail meter.
11) Installation Clip Used for xing the meter to the panel.
12) Gasket
Figure 2-8 Installation Clip Unit: mm (inches)
The Acuvim II series meter enclosures are made of high strength anti-combustible
engineering plastic.
Rubber gasket inserted between the meter and the cutout to cover up gaps from the
round hole.
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2.2 Installation Methods
Environmental
Before installation, please check the environment, temperature, and humidity to ensure that the
Acuvim II series meter is being placed where optimal performance will occur.
Temperature
• Operation: -25°C to 70°C
• Storage: -40°C to 85°C
Humidity
• 5% to 95% non-condensing
The Acuvim II series meter should be installed in a dry and dust-free environment. Avoid exposing
meter to excessive heat, radiation, or high electrical noise source.
Installation Steps
The Acuvim II series meter can be installed into a standard ANSI C39.1 (4-inch round) or an IEC
92mm DIN (square) form.
Panel Mount Installation
1. Cut a square hole or round hole on the panel of the switch gear. The cutting size can be seen
in Figure 2-9.
Unit: mm (inches)
Figure 2-9 - Panel Cutout
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Chapter 2: Installation
2. Remove the clips from the meter and insert the meter into the square hole from the front side.
NOTE: Optional rubber gasket must be installed on the meter before inserting the meter into the cutout.
Figure 2-10 - Insert meter into the opening
3. Install the clips on the back side of the meter and secure tightly to ensure that the meter is
axed to the panel.
Figure 2-11 - Use the clips to x the meter to the panel
NOTE: The display of the meter and the remote display unit have the same installation method. The DIN
rail meter is simply installed on a 35mm DIN rail.
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DIN Rail Installation Method
1. The DIN rail mount option meter is simply installed on a 35mm DIN rail.
AXM-DIN Installation
The AXM-DIN rail adapter provides an easy installation method for panel-mount Acuvim II series
meters on DIN rail. Available for all models and I/O options.
Figure 2-12 - Use the clips to x the meter to the panel
1. The adapter can be installed directly onto the back of the Acuvim II meter, I/O module, or
communications module, if used. Simply hook and screw the ends into the meter base. Once
installed, snap the adapter into the 35mm DIN rail.
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Figure 2-13 – Install the AXM-DIN rail adapter
2. The AXM-DIN rail adapter can be adjusted for horizontal or vertical DIN rail installations.
Figure 2-14 - Horizontal DIN rail installation
Figure 2-15 - Vertical DIN rail installation
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2.3 Wiring
There are four terminal strips at the back of the Acuvim II series meter, they are the voltage input
terminal, current input terminal, power supply terminal and the communication port terminal.
The three-phase voltage and current are represented by using 1, 2, and 3 respectively. These
numbers have the same meaning as A, B, and C used in other literature.
2.3.1 Power Requirement
Control Power
There are two options for the control power in the Acuvim II series meter:
1. Standard: 100~415Vac (50/60Hz) or 100-300Vdc
2. Low Voltage DC Option: 20-60Vdc
The two options must be chosen according to the application. Please see the ordering
information in the appendix for further information.
The meter typically has a low power consumption and can be supplied by an independent source
or by the measured load. A regulator or an uninterruptible power supply (UPS) should be used
under high power uctuation conditions. Terminals for the control power supply are 11, 12, and
13 (L, N, and Ground). A switch or circuit breaker shall be included in a building installation. It
shall be in close proximity to the equipment, within easy reach of the operator, and shall be
marked as the disconnection device for the equipment.
NOTE: Ensure that the control power terminal of the meter ground is connected to the
safety earth of the switch gear.
Figure 2-16 - Power Supply Terminal Strip
Choice of wire for the power supply is AWG22-16 or 0.6-1.5mm². Typically, a 1A/250Vac fuse
should be used in the auxiliary power supply loop. Terminal 13 must be connected to the ground
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Chapter 2: Installation
terminal of the switch gear. An isolated transformer or EMC lter should be used in the power
supply loop if there is a power quality issue with the power supply.
Figure 2-17 - Power Supply
Figure 2-18 - Power Supply with EMC Filter
2.3.2 Voltage Input Wiring
Voltage Input Terminal
The voltage input terminal strip consists of 4 input terminals: V1 (7), V2 (8), V3 (9), and VN (10).
Figure 2-19 - Voltage Input
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The maximum voltage input for the Acuvim II series meter shall not exceed 400LN/690LL Vac RMS
for three-phase or 400LN Vac RMS for single-phase.
In high voltage systems a Potential Transformer (PT) must be used. The typical secondary
output for PTs shall be over 100V or 120V. Ensure to select an appropriate PT to maintain the
measurement accuracy of the meter. When connecting using the wye configuration wiring
method, the PTs primary side rated voltage should be equal to or close to the phase voltage of the
system in order to utilize the full range of the PT. When connecting using the delta conguration
wiring method, the PTs primary side rated voltage should be equal to or close to the line voltage
of the system. A fuse (typically 1A/250Vac) should be used in the voltage input loop. The wire for
voltage input is AWG16-12 or 1.3-2.0mm².
Voltage Input Wiring Methods
3-Phase 4-Wire Wye Mode (3LN)
3-Phase 4-Wire wye mode is commonly used in low voltage electric distribution systems. For
voltages lower than 400LN/690LL, the voltage lines can be connected directly to the meters
voltage input terminal as shown in Figure 2-20a.
For high voltage systems (over 400LN/690LL), PTs (Potential Transformers) are required as shown
in Figure 2-20b.
For both scenarios the meter should be set to 3LN.
NOTE: In no circumstance should the secondary of the PT be shorted. The secondary
of the PT should be grounded at one end. Please refer to the wiring diagram section for
further details.
Figure 2-20a - 3LN Direct Connection Figure 2-20b - 3LN with 3PTs
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3-Phase 3-Wire Delta Mode (3LL)
3-Phase 3-Wire Delta mode is commonly used in low voltage electric distribution systems. For
voltages lower than 400LN/690LL, the voltage lines can be connected directly to the meters
voltage input terminal as shown in Figure 2-20c.
For high voltage systems (over 400LN/690LL), PTs (Potential Transformers) are required as shown
in Figure 2-20d.
For both scenarios the meter should be set to 3LL. Common system voltage for 3-phase delta
systems are 480V.
Figure 2-20c - 3LL Direct Connection
3-Phase 3-Wire Open-Phase Delta (2LL)
Figure 2-20d - 2LL with 2PTs
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2-Phase 3-Wire Split Phase (1LL)
1-Phase 1-Wire Single Phase (1LN)
Figure 2-20e - 1LL Direct Connection
Figure 2-20f - 1LN Direct Connection
Vn Connection
Vn is the reference point of the Acuvim II series meter voltage input. Low wire resistance helps
improve the measurement accuracy. Different system wiring modes require Vn connection
methods. Please refer to the wire diagram section for more details.
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Chapter 2: Installation
2.3.3 Current Input Wiring
Current Input Terminal
Current Transformers (CTs) are required for most engineering applications. Typical current
rating for the secondary side of the CT shall be 5A (standard) or 1A (optional); please refer to the
ordering information appendix for further details. CTs must be used if the system’s rated current
is over 5A. The recommended accuracy of the CT should be better than 0.5% with a rating over
3VA to preserve the meter’s accuracy. The wire between the CT and the meter shall be as short
as possible. The length of the wire eects measurement accuracy.
The wire size of the current input is AWG15-10 or 1.5-2.5mm².
Figure 2-21 - Current Input Terminal
On the current input terminal of the Acuvim II, there are 8 current input channels for 4 CTs.
• Terminal 1 (I11) and 2 (I12) are for the phase A current transformer, where the positive lead
of the CT is terminated to I11 and the negative lead is terminated to I12.
• Terminal 3 (I21) and 4 (I22) are for the phase B current transformer, where the positive lead
of the CT is terminated to I21 and the negative lead is terminated to I22.
• Terminal 5 (I31) and 6 (I32) are for the phase C current transformer, where the positive lead
of the CT is terminated to I31 and the negative lead is terminated to I32.
• Terminal 17 (I41) and 18 (I42) are for the neutral current transformer, where the positive
lead of the CT is terminated to I41 and the negative lead is terminated to I42.
NOTE: The secondary side of the CT should not be open circuit in any circumstance when the power is
on. There should not be any fuse or switch in the CT loop. One end of the CT loop should be connected
to ground if using 5A/1A Current Transformers. If using 333mV/mA/Rogowski coil current transformers
a ground connection is not required..
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3CT
The 3CT current wiring configuration can be used when either 3CTs are connected (as shown
in Figure 2-22) or when 2 CTs are connected (as shown in Figure 2-23). In either case, there is
current owing through all three circuit terminals.
For any RCT/mV/mA CT, do NOT ground the CTs. The gures below have the current input wiring
for both 5A/1A CTs as well as RCT/mV/mA CTs.
Figure 2-22a - 3 CT 5A/1A
Figure 2-23a - 3CT wiring for
5A/1A CTs with 2CT in openphase delta systems
2 CT
Figure 2-24a - 2CT wiring for
5A/1A CTs in 1LL split-phase
systems
Figure 2-22b - 3 CT 333mV/mA
Figure 2-23b - 3CT wiring for
333mV/mA CTs in open-phase
delta systems
Figure 2-24b - 2CT wiring for
333mV/mA CTs in 1LL splitphase systems
Figure 2-22c - 3CT Rogowski Coil
(RCT)
Figure 2-23c - 3CT wiring for
Rogowski Coil (RCT) in openphase delta systems
Figure 2-24c - 2CT wiring for
Rogowski Coil (RCT) in 1LL splitphase systems
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1 CT
Figure 2-25a - 1CT wiring for
5A/1A CTs in 1LN single phase
systems
2.3.4 Typical Wiring
Figure 2-25b - 1CT wiring for
333mV/mA CTs in 1LN single
phase systems
Figure 2-25c - 1CT wiring for
Rogowski Coil (RCT) in 1LN
single phase systems
Wiring Modes
This meter can satisfy almost any kind of three-phase wiring scenario. Please read this section
carefully before choosing the suitable wiring method for your power system.
Voltage and current input wiring mode can be set separately in the meters parameter settings:
• The voltage wiring mode can be set as 3-phase 4-line Wye (3LN), 3-phase 3-line direct
connection (3LL), 3-phase 3-line open delta (2LL), single phase 2-line(1LN), and single
phase 3-line(1LL).
• The current input wiring mode can be set as 3CT, 2CT, and 1CT. The voltage mode can
be grouped with the current mode as 3LN-3CT (3CT or 2CT, 3LL-3CT, 2LL-3CT, 2LL-2CT,
1LL-2CT, 1LN-1CT).
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2.3.5 Frequently Used Wiring Methods
In this section, the most common voltage and current wiring combinations are shown in dierent
diagrams. In order to display measurement readings correctly, please select the appropriate
wiring diagram for your setup and application.
Typical Wiring Diagrams
1. 3LN-3CT with 3 CTs
Figure 2-26a 3LN-3CT wiring
using 5A/1A CTs
2. 3LN-3CT using PTs
Figure 2-26b 3LN-3CT wiring
using RCT/333mV/mA CTs
Figure 2-26c 3LN-3CT wiring
using Rogowski Coils
Figure 2-27a 3LN-3CT
conguration with PTs using
5A/1A CTs
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Figure 2-27b 3LN-3CT
conguration with PTs using
333mV/mA CTs
Figure 2-27c 3LN-3CT
conguration with PTs using
Rogowski Coils
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Chapter 2: Installation
3. 3LL-3CT
Figure 2-28a 3LL-3CT
conguration using 5A/1A CTs
4. 2LL-3CT
Figure 2-29a 2LL-3CT wiring
with PTs using 5A/1A CTs
5. 1LN-1CT
Figure 2-28b 3LL-3CT
conguration using 333mV/mA
CTs
Figure 2-29b 2LL-3CT wiring
with PTs using 333mV/mA CTs
Figure 2-28c 3LL-3CT
conguration using Rogowski
Coils
Figure 2-29c 2LL-3CT wiring with
PTs using Rogowski Coils
Figure 2-30a 1LN-1CT
conguration using 5A/1A CTs
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Figure 2-30b 1LN-1CT
conguration using 333mV/mA
CTs
Figure 2-30c 1LN-1CT
conguration using Rogowski
Coils
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6. 1LL-2CT
Figure 2-31a 1LL-2CT
conguration using 5A/1A CTs
Figure 2-31b 1LL-2CT
conguration using 333mV/mA
CTs
Figure 2-31c 1LL-2CT
conguration using Rogowski
Coils
2.3.6 Communication
The Acuvim II series meter uses RS485 serial communication and the Modbus RTU protocol. The
terminals of communication are A, B, and S (14,15,16).
• A is the positive dierential signal
• B is the negative dierential signal
• S is connected to the shield of the twisted pair cables
Figure 2-32 Communication Port
Figure 2-33 shows the wiring of the RS485-USB converter to the meter’s communication port
terminals. There can be a maximum of 32 devices that can be connected on a RS485 bus.
For the wiring, use a good quality, shielded twisted pair cable, AWG22 (0.5mm²) or higher. The
overall length of the RS485 cable connecting all devices should not exceed 1200m (4000ft).
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Figure 2-33 RS485-USB connection to Acuvim II series meter
The Acuvim II series meter is used as the slave device of masters such as a PC, PLC, Data Collector
or RTU. If the master does not have a RS485 communication port, a converter (such as a RS232/
RS485 or a USB/RS485 converter) will be required. Typical RS485 network topologies includes
line, circle, and star (wye). The shield of each segment of the RS485 cable must be connected to
the ground at one end only.
Every A(+) should be connected to A(+), B(-) to B(-), or it will inuence the network, or even damage
the communication interface.
The connection topology should avoid "T" type topology, meaning there is a new branch and it
does not begin at the beginning point.
Keep communication cables away from sources of electrical noise whenever possible.
When using long communication cables to connect several devices, an anti reflecting resistor
(typical value 120Ω-300Ω/0.25W) is normally added to the end of the cable beside the last meter if
the communication quality is distorted.
Use RS232/RS485 or a USB/RS485 converter with an optical isolated output and surge protection.
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Chapter 3: Meter Display & Parameter Settings
This chapter describes how to view real time metering data and setting parameters using dierent
key combinations on the meter.
3.1 Display Panel and Keys
The front of the Acuvim II series meter consists of an LCD screen and four control keys. All the
display segments are illustrated in Figure 3-1. Users should note that all the segments will not
display in a single page under normal conditions.
The icons displayed in gure 3-1 can be explained in the following table:
SN Display Description
1 Display Mode
2
Four lines of "
metering area
" digits in the
Figure 3-1 All display segments
Table 3-1 All display segments
Shows dierent modes on the display area.
Meter: real-time measurement
Max/Min: Statistical data
Demand: Power demand data
Harmonic: Harmonic data
Setting: Parameter/meter settings
Digital I/O: Viewing I/O module data.
The numeric metering data will be displayed here.
3 Four "
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" and ve " " digits
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Display energy data and real-time clock. Also used for the setting
mode and digital I/O mode display.
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Chapter 3: Meter Display & Parameter Settings
SN Display Description
4 Three " " digits
5 Unbalance, THD, TDD, MAX, MIN
6 Load Rate
7
8 1-2, 2-3, 3-1, avg, N
9 Energy icon: Imp, Total, Net, Exp
10 Units Measured
11 Communication Icon
Four Quadrant Icon:
Load Type Icon:
Item Icons:
U for voltage
I for current
P for active power
Q for reactive power
S for apparent power
PF for power factor
F for frequency
for phase angles
DMD for demand
Mxx for expanded I/O module type and display setting page
number.
Item Icons: Unbalance for unbalance of the voltage and current;
THD for total harmonics distortion; TDD for total demand distortion;
MAX for maximum and MIN for minimum.
Displays the percentage of load to the rated current
or power.
: Quadrant of the system power
: Inductive Load
: Capacitive Load
1, 2, 3: Represents 3 phases A, B, C
1-2, 2-3, 3-1: Represents 3 phase line to line AB, BC, CA
avg: Represents the average
N: stands for neutral
Imp: Import Energy
Total: Absolute sum of Import and Export energy
Net: Algebraic sum of Import and Export energy
Exp: Export Energy
Voltage: V, kV
Current: A, kA
Active Power: kW, MW
Reactive Power: kvar, Mvar
Apparent Power: kVA, MVA
Frequency: Hz
Active Energy: kWh
Reactive Energy: kvarh
Apparent Energy: kVAh
Percentage: %
Phase Angle: º
No Icon: no communication
One Icon: query sent
Two Icons: query sent and response received
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SN Display Description
12 Energy pulse output indicator
13
14 Probus Module Indicator
15
Expanded I/O module indicator
Ethernet Module Indicator
No Icon: no pulse output
With Icon: icon blinks when sending pulse output
M1: one AXM-IO1 connected
M1x2: two AXM-IO1 connected
None: no AXM-IO1 connected
M2: one AXM-IO2 connected
M2x2: two AXM-IO2 connected
None: no AXM-IO2 connected
M3: one AXM-IO3 connected
M3x2: two AXM-IO3 connected
None: no AXM-IO3 connected
Icon: Probus module connected
No Icon: Probus module not connected
No Icon: Ethernet module not connected
With Icon: Ethernet module connected when the Second
Communication Protocol is set as Other, Wi-Fi module connected
when the Second Communication Protocol is set to Wi-Fi, BACnet
module connected when the Second Communication Protocol
is set to BACnet, Mesh module connected when the Second
Communication Protocol is set to Mesh.
16
17 Time Icon
Current Tari
Time Display
There are four keys on the front panel of the meter, labeled H, P, E, V/A from left to right. These
four keys are used to read the real-time metering data, set parameters, and navigate the meter.
3.2 Metering Data
To view the metering data, press H and V/A simultaneously for about one second then release;
this will activate the display mode selection and the cursor will begin ashing. Press P or E to
move the ashing cursor right or left. To enter the metering mode, move the cursor to Meter
then press V/A. In the metering mode, the meter displays measurements such as voltage,
current, power, power factor, phase angle, unbalance, etc.
3.2.1 Voltage and Current Data
To view the voltage and current, press V/A while in metering mode.
The screen will roll to the next page when V/A is pressed again. It will go back to the rst screen if
you press V/A at the last screen. The following gure shows the screen sequence:
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Figure 3-2 - Voltage and Current screen sequence
NOTE: When the meter is set to 2LL or 3LL, there is no phase voltage or neutral current displayed.
Therefore, only the third screen (line voltage & avg) and the fourth screen (three-phase current & avg) will
be displayed. When the meter is set to 1LN, only phase A voltage and phase A current will be displayed;
no other screens will be displayed. When the meter is set to 1LL, no phase C voltage or phase C current
will be displayed.
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Figure 3-3 shows an image of the three-phase voltage reading, where 1 represents phase A, 2
represents phase B, 3 represents phase C, and avg represents the average phase voltage.
Similarly in Figure 3-4, the three-phase current and average can be seen in the same
representation.
Figure 3-3 - Three-Phase Voltage Page Figure 3-4 -Three-Phase Current Page
In the voltage and current screen sequence the very first page provides users with an overall
summary of the metering values for the Acuvim II meter. Figure 3-5 shows the main summary
page of the Acuvim II where the top line of data refers to the average line-to-line voltage, the
second refers to the total power of the system, the third line refers to the average current, the
fourth line refers to the total system power factor, and the very last line refers to the total energy.
Figure 3-5 Meter Summary Page
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3.2.2 Power, Power Factor, and Frequency
To view all power related data, press P while in metering mode.
The screen will roll to the next page when P is pressed again. It will go back to the rst screen if
you press P at the last screen. The following gure shows the screen sequence:
Figure 3-6 - Power, Power Factor, and Frequency screen sequence
NOTE: When the meter is set to 2LL or 3LL, only the fth screen (system power) and the sixth screen
(system power factor & frequency) will be displayed. When the meter is set to 1LN only phase A power
and phase A power factor will be displayed. When the meter is set to 1LL, no phase C power and phase
C power factor will be displayed.
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Figure 3-7 - Three-Phase Power Page Figure 3-8 - Total System Power Page
3.2.3 Phase Angles and Unbalance
To view the phase angle and unbalance data, press H while in metering mode.
The screen will roll to the next page when H is pressed again. It will go back to the rst screen if
you press H on the last screen. The following gure shows the screen sequence:
Figure 3-9 - Phase Angle and Unbalance screen sequence
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NOTE: When using 2LL or 3LL wiring modes, the voltage here stands for line-to-line voltage. Otherwise,
the voltage stands for line-to-neutral voltage. When the meter is set to 1LN, only phase A current to
phase A voltage angle will be displayed. When the meter is set to 1LL, no phase C voltage or current to
phase A voltage angle will be displayed.
Figure 3-10 - Voltage Phase Angle Page Figure 3-11 Current Phase Angle Page
3.2.4 Energy
To view the energy and real time clock on the meter, press the E button. The screen will roll to
the next page when E is pressed again. It will go back to the rst screen if you press E at the last
screen.
The Acuvim II series meter can be set to record either primary or secondary energy. The unit of
energy is kWh for active energy, kvarh for reactive energy, and kVAh for apparent energy. The
running time has a resolution of 0.01h. The meter begins accumulating time when it is initially
powered up. The accumulated time is stored in the non-volatile memory and can be reset via
communication or from the meter’s display.
The energy reading on the Acuvim II meter can be read at the bottom of the display, where users
can cycle between dierent types of energy on any metering page on the meter except for the
Meter Summary page. The metering summary page only displays the total energy (kWh). The
following ow chart shows the screen sequence for the energy readings.
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There are dierent types of energy that the Acuvim II meter can measure, Figure 3-13 shows the
Import Active Energy represented by the IMP icon and the kWh unit.
Figure 3-12 - Energy and Real Time Clock screen sequence
Figure 3-13 - Import Active Energy
Table 3-2 shows the dierent icons and units for all the energy measurements in the Acuvim II
meter.
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Table 3-2 Energy Parameter Table
SN Parameter Unit
Imp Import Energy kWh
Exp Export Energy kWh
Net Net Energy kWh
Total Total Energy kWh
Imp Import Reactive Energy kvarh
Exp Export Reactive Energy kvarh
Net Net Reactive Energy kvarh
Total Total Reactive Energy kvarh
Apparent Energy kVAh
The meter’s time can also be found in the energy screen sequence. Figure 3-14 shows the date
displayed on the meter screen. The date is read as YYYY.MM.DD; the gure below shows the date
as April 28, 2020. In addition, when viewing the time/date on the meter display, the time icon will
be displayed on the bottom right corner of the meter screen.
Figure 3-14 - Time & Date Reading
3.2.5 TOU Display
In the metering mode, press P and E simultaneously to enter the TOU (Time-of-Use) mode. In the
TOU mode, the meter displays the energy, maximum demand, and its time in dierent taris.
The screen sequence for the TOU data can be seen in Figure 3-15:
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Chapter 3: Meter Display & Parameter Settings
Figure 3-15 - TOU screen sequence
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Chapter 3: Meter Display & Parameter Settings
3.3 Statistical Data
In the statistical data mode, the meter displays the maximum and minimum values for voltage,
current, power, power factor, unbalance, demand, THD, etc. To change the mode of the Acuvim II
meter to view statistical data, press H and V/A simultaneously for about one second then release;
the screen will go blank and the cursor will begin ashing. Press either P or E to move the ashing
cursor over to Max/Min and press V/A to enter and view the statistical data.
When P is pressed, the screen will roll to the next page, and will roll back to the rst screen when
pressed at the last page. When E is pressed, the screen will roll back to the previous page, and will
roll back to the last screen when pressed at the rst page.
Press V/A to switch the view between maximum and minimum. For example, if the current
display is showing the maximum phase voltage value, then V/A is pressed, the display will show
the minimum phase voltage value. If V/A is pressed again, the display will switch back to show the
maximum phase voltage value. The following gure shows the screen sequence:
Figure 3-16 - Max/Min screen sequence
NOTE: The figure shows the rolling sequence when P is pressed. The sequence would be reversed if
users press E to roll between screens. When the meter is set to 2LL or 3LL, the rst screen (max value of
phase voltage) will not be displayed. When the meter is set to 1LL, there are no such displays as phase
C voltage, Ubc and Uca line voltage, phase C current, three-phase voltage and current unbalance factor,
Uc and Ic THD, phase C current demand, etc.
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NOTE: The timestamp for the max/min parameters can be viewed only from the Acuview software or
through Modbus communication. There are no commands associated with the H button in the Max/
Min display mode.
Figure 3-17 Acuvim II Minimum Readings Figure 3-18 Acuvim II Maximum Readings
3.4 Demand Data
To view the demand data, press H and V/A simultaneously for about one second then release; the
screen will go blank and the cursor will begin ashing. Press either P or E to move the ashing
cursor over to Demand and press V/A to view the meters demand data. The rst screen that is
shown is the demand of active power, reactive power, and apparent power. Press either P or E
to view the current demand of phase A, phase B, and phase C. The power demand and current
demand are the only two screens that can be read in the demand mode.
NOTE: When the meter is set to 1LL, there is no phase C current demand displayed. When the meter is
set to 1LN, no phase B and C current demand will be displayed.
NOTE: There are no commands associated with the V/A and H button in the demand readings page.
Figure 3-19 shows the power demand screen that has a system active power demand of 112.7
kW, system reactive power demand of 0.063 kvar, and a system power demand of 115.1 kVA.
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Figure 3-19 Power Demand Screen
3.5 Harmonic Data
In the Harmonic data mode, the meter displays the individual harmonic data for voltage and
current, Total Harmonic Distortion, odd Harmonic Distortion, even Harmonic Distortion, Crest
Factor, and K Factor. To view the Harmonic data, press H and V/A simultaneously for about one
second then release; the screen will go blank the cursor will begin ashing. Press either P or E to
move the ashing cursor over to Harmonic and press V/A to view the Harmonic data of the meter.
3.5.1 Power Quality Data
While in the Harmonic data mode, press H to display the power quality data. By pressing H again,
the screen will roll to the next page and will roll back to the rst screen when H is pressed at the
last page. Figure 3-20 shows the screen sequence for the power quality parameters.
Figure 3-20 - Power Quality Screen Sequence
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NOTE: When the meter is set to 1LN, only phase A is displayed for voltage THD, voltage odd harmonic
distortion, voltage even harmonic distortion, THFF, voltage crest, current THD, current odd harmonic
distortion, current even harmonic distortion, and current K factor. When the meter is set to 1LL phase C
is not displayed.
Figure 3-21 below shows the Total Harmonic Distortion for Voltage, where Phase A THD is 2.050%,
Phase B THD is 1.990%, Phase C THD is 1.920%, and the Average Phase Voltage THD is 1.986%.
3.5.2 Individual Harmonic Data
While in harmonic mode, press V/A to switch from the THD parameters to the individual harmonic
data display.
In the harmonic data display, the harmonic order will increase by one each time P is pressed and
will return to the 2nd Harmonic when P is pressed at the 63rd harmonic. The harmonic order will
decrease by one each time E is pressed and will return to the 63rd when E is pressed at the 2nd
harmonic.
Press V/A to switch the display between voltage harmonics and current harmonics.
Figure 3-21 - Harmonic Distortion Reading
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Figure 3-22 - Individual Harmonic data screen sequence
NOTE: The gure shows the rolling sequence when pressing P. If the E button is pressed, the sequence
will be reversed. When the meter is set to 1LN, only phase A is displayed for voltage and current
harmonic magnitudes. When the meter is set to 1LL, phase C is not displayed for voltage and current
harmonic magnitudes.
Figure 3-23 shows the 5th order harmonic readings for current: Phase A is 12.35%, Phase B is
4.940%, and Phase C is 7.541%.
Figure 3-23 - Individual Harmonic Reading
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3.6 Expanded I/O Module Data
To view the data from the expanded I/O modules, press H and V/A simultaneously for about one
second then release; the screen will go blank, and the cursor will begin ashing. Press either P or
E to move the cursor right or left until it is on Digital I/O, then press V/A to view the I/O data.
In the expanded I/O module data mode, the meter displays the data from the expanded I/O
modules such as the DI status, DI pulse counter, relay status, analog input, analog output etc.
In this mode the rst page is the module selection. You can choose to view the available modules
that are attached to the meter. If no expanded I/O modules are connected, the screen will display
NO IO.
3.6.1 Module Selection:
In the module selection screen press P to move the cursor downwards, the cursor will move to the
top when it reaches the bottom. If only one module is connected, pressing P will have no eect.
Press E to move the cursor upwards, the cursor will move to the bottom when it reaches the top.
If only one module is connected, pressing E will have no eect.
Press V/A to select the module and enter the I/O module data selection mode.
Figure 3-24 - Module Selection Screen
As shown in the gure, two modules are connected, AXM-IO11, AXM-IO21 which are indicated by
M11, and M21, respectively. The cursor in the gure points to M21. The following table lists all I/O
modules and codes they are associated with.
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Table 3-3 I/O Module Representation
Code Module
M11 AXM-IO1-1
M12 AXM-IO1-2
M21 AXM-IO2-1
I/O Module Data Display
In the I/O Module Data selection screen, press P to move the cursor downwards; the cursor will
move to the top when it reaches the bottom. Please note that there are 3 parameters for the
AXM-IO1, 3 parameters for the AXM-IO2, and 4 parameters for the AXM-IO3.
Press E to move the cursor upwards; the cursor will move to the bottom when it reaches the top.
Press V/A to select the parameter and enter the display of the data.
Press H to return to the module selection screen.
The following gures display the screen sequence for each I/O module supported on the Acuvim II.
M22 AXM-IO2-2
M31 AXM-IO3-1
M32 AXM-IO3-2
Figure 3-25 - AXM-IO1 data display screen sequence
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Figure 3-26 - AXM-IO2 data display screen sequence
Figure 3-27 - AXM-IO3 data display sequence
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Chapter 3: Meter Display & Parameter Settings
3.7 Meter Setting Mode
In the settings mode, the system parameters, expanded I/O module parameters, alarm
parameters, and communications module parameters can be read and modied. To access the
settings mode, press H and V/A simultaneously for about one second then release; the screen will
go blank, and the cursor will begin ashing. Press either P or E to move the ashing cursor over to
Setting and press V/A to enter the meter settings.
3.7.1 Password Inquiry
In order to access the meter’s settings, the meter’s password must be entered. By default, the
meter password is 0000. The following gure shows the password screen.
To enter a password:
NOTE: If the meter’s password is unknown or forgotten, please contact Accuenergy Technical Support.
Figure 3-28 - Password Inquiry Page
• Press H to move the ashing cursor to the next position.
• Press P to increase the number by 1.
• Press E to decrease the number by 1.
• Press V/A to conrm the password.
3.7.2 Parameter Selection Mode
Once the password has been entered correctly, there are four options to choose from in the
parameter selection mode:
• System
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• I/O
• NET (Depending on the type of communications module and protocol selected, this may say
MESH or BACNET)
• Alarm
To navigate in the parameter selection mode, press P to move the cursor downwards; the cursor
will move to the top when it reaches the bottom. Press E to move the cursor upwards; the cursor
will move to the bottom when it reaches the top. Press V/A to select and enter the setting.
3.7.3 System Settings
Users can select and modify system parameters in the system parameter setting mode.
Key functions for selecting a parameter:
• Pressing P will roll to the next screen and will return to the rst page when P is pressed at the
last page.
• The screen will roll to the last page each time E is pressed and will return to the last page when
E is pressed at the rst page.
• Press V/A to modify the selected parameter.
• Press H to return to the parameter selection mode.
Key functions for modifying the parameter:
• Press H to move the ashing cursor to the next position.
• Press P to increase the number by 1.
• Press E to decrease the number by 1.
• Press V/A to conrm the modication and return to parameter selection mode.
Figure 3-29 - Parameter Selection Page
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Figure 3-30 - System Parameters page sequence
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3.7.4 I/O Module Settings
In the expanded I/O module parameter mode, users can choose to view the available modules
that are attached to the meter and modify their parameters. If no expanded I/O modules are
connected, the screen will display NO IO. To return to the system parameter setting menu, press H.
Key functions for I/O module selection:
• Press H to return to parameter selection mode.
• Press P to move the cursor downwards. The cursor will move to the top when it reaches the
bottom. If there is only one module connected, pressing P will have no eect.
• Press E to move the cursor upwards, the cursor will move to the bottom when it reaches the
top. If there is only one module connected, pressing E will have no eect.
• Press V/A to select the module and enter the I/O module parameter setting mode.
Key functions for modifying the parameter:
• Press H to move the ashing cursor to the next position.
• Press P to increase the number by 1.
• Press E to decrease the number by 1.
• Press V/A to conrm the modication and return to parameter selection mode.
NOTE: Figures 3-30 to 3-33 show the rolling sequence using the P key. If you are using the E key for
scrolling across the pages, the sequence will be reversed.
The following gures show the sequence for the I/O module settings:
Figure 3-31 - Screen sequence for AXM-IO11/IO12
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Figure 3-32 - Screen sequence for AXM-IO21/IO22
Figure 3-33 - Screen sequence for AXM-IO31/IO32
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Chapter 3: Meter Display & Parameter Settings
3.7.5 Communications Module Settings
When the second communication protocol is set to BACnet, there are certain pages that will be
displayed related to BACnet. These pages will only be shown when the module is successfully
connected to the meter; if the meter does not detect any module, it will display a LOADING page.
When the second communication protocol is set to MESH, the meter will display parameters
related to the AXM-MESH module.
When the second communication protocol is set to OTHER, there will be parameters displayed
related to the AXM-WEB-PUSH module.
When the second communication protocol is set to WIFI, there will be parameters displayed
related to the AXM-WIFI module.
When the second communication protocol is set to WEB2, there will be parameters displayed
related to the AXM-WEB2 module.
Key functions for nding the IO module parameters:
• Press H to return to parameter selection mode.
• The screen will roll to the next page each time P is pressed and will return to the rst page
when P is pressed on the last page.
• The screen will roll to the last page each time E is pressed and will return to the last page
when E is pressed at the rst page.
• Press V/A to modify the selected parameter.
Key functions for modifying the module parameters:
• Press H to move the ashing cursor to the next position.
• Press P to increase the number by 1.
• Press E to decrease the number by 1.
• Press V/A to conrm the modication and return to parameter selection mode.
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The following gures show the screen sequence for the supported communication protocols:
Figure 3-34 - Ethernet module net settings screen sequence
NOTE: This gure shows the rolling screen sequence using the P key. If using the E key for rolling to the
next page the sequence will be reversed.
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Figure 3-35 - BACnet IP module rolling screen sequence
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Figure 3-36 - BACnet MS/TP settings
Figure 3-37 - Mesh settings
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Chapter 3: Meter Display & Parameter Settings
3.7.6 Alarm Settings
In the alarm parameter mode, the user can view and modify the parameters.
Key functions for nding the alarm parameter:
• Press H to return to parameter selection mode.
• The screen will roll to the next page each time P is pressed and will return to the rst page
when P is pressed on the last page.
• The screen will roll to the last page each time E is pressed and will return to the last page
when E is pressed at the rst page.
• Press V/A to modify the selected parameter.
Key functions for modifying the parameter:
• Press H to move the ashing cursor to the next position.
• Press P to increase the number by 1.
• Press E to decrease the number by 1.
• Press V/A to conrm the modication and return to parameter selection mode.
The following gure shows the sequence:
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3.8 Page Recovery Function
The Acuvim II series meter includes a page recovery function. This means that the meter stores
the current display page in the non-volatile memory upon power loss and reloads the page when
power is recovered. If power goes o when viewing under the parameter setting mode, the meter
will show voltage displayed when the power is recovered. If power goes o when viewing under
the expanded I/O module data mode, and if this expanded I/O module is not connected when
power recovers, the meter will show the voltage display page instead.
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Chapter 4: Detailed Functions and Software
Chapter 4: Detailed Functions and Software
The Acuvim II series meter contains advanced metering tools and is able to measure a multitude
of power, energy and power quality parameters. Some advanced functions may not be accessible
directly from the meter front; therefore, every meter can connect to our Acuview software that
helps to access the information. This chapter introduces these functions and software.
4.1 Acuview Software
The Acuview software is a free data logging software that can be used to read the meters data,
as well as congure and view settings. This software is free to download from our website (www.
accuenergy.com).
The software uses the Modbus protocol to communicate with the meter. Users can connect to
the software via the built in RS485 communication port or by Modbus TCP via communications
module.
4.1.1 Connect using RS485
Using the meters RS485 communication port users can connect to the software using an RS485
to USB converter. The RS485 port on the meter has three terminals where 14 is labeled A (positive),
terminal 15 is B (negative), and terminal 16 is S (Shield). The communication port uses half-duplex
two wire RS485 communication where the data is passed in one direction at a time, and the send
(TX) and receive (RX) signals are shared between the two wires.
The gure below depicts how the RS485-USB converter should be wired into the meter, the T/R+
on the converter connected to terminal 14(A) on the Acuvim II meter, and T/R- on the converter
connected to terminal 15(B) on the meter.
Figure 4-1 - RS485-USB converter connection to Acuvim II meter
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Once the physical wiring is connected between the converter cable and the Acuvim II meter, the
meter’s communication settings need to be conrmed. The communication settings in this case
are the meter’s Modbus device address (slave ID), the communication speed or baud rate, and the
parity. By default, the meter has the following communication settings:
• Modbus Device Address: 1
• Baud Rate: 19200
• Parity: Non1 (no parity, 1 stop bit)
NOTE: If users are connecting to a meter with no display (DIN rail mount model), please note that the
default baud rate of the meter is 9600 when the meter is rst powered up. After one minute of being
powered, the default baud rate changes to 19200.
Next, the COM port must be conrmed for the computer that is being used to connect to the
meter. To determine the COM port that is assigned, open the Device Manager on the computer.
Under the Port (COM & LPT) heading, find the COM port number; for example, in the figure
below, COM4 has been assigned to the RS485-USB converter. Note the COM port number as it is
required to connect to the software.
Figure 4-2 - COM port number assigned to USB converter
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Open the Acuview software. The following New Connection screen will appear where users are
required to provide the type of connection, COM port, baud rate, parity, and scan interval.
Select the connection type as Serial Port and then select the COM port number assigned to the
USB converter cable from the device manager.
Next, enter in the communication settings (Baud Rate, Parity) from the Acuvim II meter into the
software. The scan interval can be left as the default of 200ms. Click OK after all settings have
been entered.
Next, the device will need to be added to the software where users will need to enter in the device
type, the connection, device address, and a description for the device.
For the device type, users can select the Acuvim II meter model they are using (Acuvim IIR, Acuvim
IIW). The connection would be referring to the connection that was created in the step above in
Figure 4-3. The device address is in reference to the Modbus device address from the Acuvim II
meter, and the description eld is used for labeling the device in the software.
Figure 4-3 - Creating new connection on the Acuview software
Figure 4-4 - Adding Acuvim II device to the software
After clicking OK, the meter should automatically connect to the software, and you should see
data appear on the main screen in Acuview. If the meter does not initially connect, click on the
Operation menu and select Connect.
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NOTE: For methods on how to connect to the software using Modbus TCP via a communications
module, please refer to the AXM-WEB2 or AXM-WEB-PUSH User Manual which can be found on our
website: www.accuenergy.com.
4.2 Basic Analog Measurements
The Acuview software allows users to view all real-time analog measurements with high accuracy.
The real-time parameters that the meter can measure include voltage, current, power, frequency,
power factor, demand, etc.
Figure 4-5 - Acuview Software interface once successfully connected to the meter
Fig 4-6 - Real-Time Metering
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Chapter 4: Detailed Functions and Software
4.2.1 High Speed Monitoring
The Acuvim II V3 model supports High Speed Monitoring which includes either 100ms or 20ms
sampling rates.
The high speed parameters include most real time parameters for 100ms, however at 20ms
sampling the meter only supports voltage, current, total active/reactive power and frequency.
The following images show the parameters for both 100ms and 20ms:
Fig 4-6-1a - 100ms High Speed Monitoring
Fig 4-6-1b - 20ms High Speed Monitoring
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4.3 Demand
This meter can support demand measurements consisting of power and current demand
readings. The demand can be found in the real-time section as outlined in Figure 4-7 below.
The demand will be calculated using the demand calculation method congured in the meter. The
calculation types include:
• Fixed Window: The demand is calculated based on selecting the calculation period between
1-30 minutes. The meter will calculate and update the demand values at the end of each
calculation period.
• Sliding Window: The demand is calculated by selecting the calculation period between 1-30
minutes. The meter will average the energy accumulated within this period of time and the
demand value is updated every minute.
• Thermal: The demand is calculated based on thermal response, used in thermal demand
meters. This method uses a sliding window to update the demand value at the end of each
calculation period.
• Rolling Window: The demand is based on selecting a calculation period between 1-30
minutes, a sub interval (Demand Calculation Slip Time), and the demand value is updated at
each sub interval. The sub interval must be a factor of the calculation period. For example,
with a calculation period of 15 minutes, the sub interval can be congured as 5 minutes.
The demand calculation type and interval can be congured in the meter settings on either the
software, which will be discussed in the software settings portion of this chapter, or from the front
display of the meter (refer to Chapter 3 for accessing the demand settings).
Figure 4-7 - Demand Readings
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Chapter 4: Detailed Functions and Software
4.4 Energy
The Acuvim II meter supports the writing of energy values which can be done via software
or Modbus but not from the meter’s display. This is used to configure the meter to start
accumulating from a certain energy value.
Energy Calculating mode
1. Users can select different energy calculating modes, fundamental based or full-wave based
either from the meter-front or via communication. The fundamental based calculating is used to
accumulate energy without taking harmonics into consideration while full-wave based calculating
is used to accumulate energy including fundamentals and harmonics.
NOTE: When fundamental based calculating mode is selected, the PF calculation will be based on the
fundamental wave.
NOTE: If user has 400Hz Acuvim II model, only the full-wave method is supported.
2. The energy reading can be set as either Primary or Secondary. Primary displays the energy
accumulation in terms of the Primary measurement and Secondary will display the energy
accumulation in terms of the secondary measurement with resolution of up to 1Wh. Users can
configure this setting by either by pressing keys from the meter-front (refer to chapter 3), via
Modbus communication though Acuview software, or through Modbus registers.
NOTE: Acuvim II is able to display either primary energy or secondary energy on the LCD screen.
However, it is only able to send out pulses according to secondary energy via the AXM-I/O module.
Figure 4-8 - Energy Readings
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4.5 Max/Min
Acuvim II series meter logs maximum and minimum value statistics for all real time, demand, THD
parameters and also log the time that it occurred. All data is stored in non-volatile memory so
that statistic information can be preserved even when the meter is loses power or gets shut o.
All maximum and minimum data can be accessed via communication or from the meter front,
however only timestamps information can only be accessed via communication.
Statistical data can be cleared via communication or from the meter-front.
Figure 4-9 Max and Min readings
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Chapter 4: Detailed Functions and Software
4.6 Harmonics and Power Quality Analysis
4.6.1 Harmonics & THD
Acuvim II series meter can measure and analyze several power quality parameters which is useful
for further analyzing the voltage and current signals measured by the meter.
Total Harmonic Distortion: A ratio of the sum of powers in all harmonic components to power of
the fundamental frequency. The Acuvim II meter also supports even and odd order THD, where
even order harmonics are the 2nd, 4th, 6th, and so on and odd order harmonics are 3rd, 5th, 7th,
etc.
Crest Factor: Is the ratio between either the peak current or voltage and the RMS value.
THFF: Stands for Telephone Harmonic Form Factor and is the ratio of the square root of the
sum of the squares for all the sine wave components (including alternating current waves both
fundamental and harmonic) to the RMS value of the entire wave form.
K Factor: A measure of the heating effect caused by current harmonics that helps determine
the linearity of a load. If the K factor is 1, this means that the load is linear and that there are no
harmonics present. However, a K factor value greater than one means that the load is not linear
and that there is a higher heating eect caused by the harmonics in the system.
Harmonics are essentially high frequency waveforms that are combined with or superimposed
over the fundamental frequency. The fundamental frequency is the circuit frequency which is
50 or 60Hz depending on the system that is being monitored. The Acuvim II meter supports
individual voltage and current harmonics up to the 63rd order. This means that the meter can
monitor the percentage of harmonics present up to the 63rd order (63 times the fundamental
frequency). This provides users with an in depth examination of the power quality for the system
they are monitoring.
NOTE: The 400 Hz Acuvim II model only supports 2nd~15th harmonics.
Figure 4-10 - THD Reading
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4.6.2 Amplitude and Angle
This section provides users with the amplitude and phase angle details of the harmonics being
measured by the meter. For example if the voltage input to the meter is 120V, and a harmonic
reading of 10% for the 2nd order, the amplitude in this case will show 12V. Both voltage harmonics
and current harmonic amplitude/angles can be viewed. Users can view from the 2nd to 63rd
order by using the scroll bar on the software.
Figure 4-11 - Individual Harmonic Reading
Figure 4-11-a - Amplitude and Angle Section
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4.6.3 Phase Angles
Phase angle indicates the angle between phase A voltage and other voltage/current parameters
in a range from 0 to 360 degrees. These readings allows the users to analyze the phase angle
dierence between each phase and also determine if current/voltage are incorrectly out of phase,
which tend to be related to wiring/installation issues with the meter.
• When the wiring is set to 2LL or 3LL, the meter provides the phase angles of U23, U31,
I1, I2, I3 corresponding to U12 (reference angle).
• When the wiring is set to 3LN, the phase angles are U2, U3, I1, I2, and I3 where U1 is the
reference angle.
• When the wiring is set to 1LL, the meter has phase angle of U2, I1, and I2 where U1 is
the reference angle.
The phase angle readings from Acuview software are shown in Figure 4-12. The image provides
the phase angle reading of a three-phase four wire system (3LN), where the three-phase voltage is
120 degrees apart. The current phase angle for three-phase four wire balanced systems is usually
aligned with the voltage phase angles.
Figure 4-12 - Phase Angle Diagram & Readings
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4.6.4 Sequence Component and Unbalance Analysis
Acuvim II series meter is able to perform sequential analysis for the input signal. The sequence
components allow users to represent three-phase systems as individual into three single phase
networks, where these networks can be described as the positive sequence, negative sequence
and zero sequence.
Positive Sequence: Three phasors of the positive sequence are equal in magnitude and are
spaced by 120 degrees.
Negative Sequence: Similar to the positive sequence, the negative phase-sequence phasors are
of equal in magnitude and spaced by 120 degrees. The main dierence between positive and
negative sequence is the phase rotation, where the negative sequence has phase B phase leading
phase A rather than lagging in the positive sequence.
Figure 4-13 - Positive Sequence Phasor Diagram
Figure 4-14 - Negative Sequence Phasor Diagram
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Zero Sequence: Combines a set of three phasors that are equal in magnitude and in-phase with
each other. Unlike the positive and negative sequence, there is no rotation associated with the
zero sequence.
Unbalance Factor
The unbalance factor allows users to understand the percentage in which the voltage and current
are unbalanced. The factor is a percentage of the ratio of the negative/zero sequence component
to the positive sequence component, and essentially tells users that the magnitude, as well as
the phase angles, between of the three-phase voltage/current is not equal. Figure 4-16 shows the
unbalance and sequence component reading from the Acuview software.
Figure 4-15 - Zero Sequence Phasor Diagram
Figure 4-16 - Unbalance and Sequence Component Reading
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4.7 Alarm
Acuvim II series meter supports an over/under limit alarming function. When the monitored
parameter goes over or under the preset limit and stays at the level over the preset time delay,
the alarm will be triggered. The alarm can be configured directly from the meter display, the
Acuview software, or via Modbus communication.
The meter can have a maximum of 16 alarm channels configured. If users have extended I/O
modules attached, the alarms can trigger different functions, such as a relay output or digital
output, which can be used to activate downstream devices such as a beacon light or buzzer.
There is an option to have the meter’s display ash when an alarm is triggered which provides
users a visual cue that an alarm condition has been triggered.
Figure 4-17 - Alarm Setting
Before using the alarming function, alarm conditions such as logic dependency, target set point,
and time delay must be correctly set. Settings can be accessed and modied from the software via
the communication connection as shown in Fig 4-17. To access the alarm settings from the meter
display, refer to Chapter 3 for the screen sequence. To congure the alarms using Modbus, refer
to Chapter 6 to view the register list.
Alarm Channel/Parameter Code: Users can select from the drop down menu the desired
parameter to alarm in the alarm settings page. If setting the alarms using Modbus or from the
meters display enter in the alarm code for the desired parameter, the alarm code table can be
seen in table 4-3. For example, "0" would represent frequency and "17" would represent Total
System Power.
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Comparison Mode: Users can select three, dierent alarm conditions:
1. Greater than (>)
2. Equal to (=)
3. Smaller than (<)
For example: If you choose the target parameter to be "Frequency," the condition to be "greater
than" and set point to be "50," the alarm will be triggered when the frequency is greater than 50Hz
and will come out of the alarm condition when the frequency is less than 50Hz.
Setpoint: The setpoint is the parameter value used in the alarm condition and is the alarm
condition value whether you want to trigger below, under, or when the parameter is equal to this
setpoint value.
Delay Time: If the alarm condition lasts for the preset time period, the alarm signal will be
triggered. The delay range is from 0 to 3000 (unit: 10ms). When it is set to 0, there is no delay and
alarm will be triggered when the alarm condition is met. If it is set to 20, there will be a 200ms (20
x 10ms) delay.
Output to Digital Output: If using an AXM-IO2 module, users have the option to output a pulse
signal when an alarm is triggered.
Table 4-1 - Digital Output Alarm Translation
DO Code DO Channel IO Module
DO211 DO1 AXM-IO2-1
DO212 DO2 AXM-IO2-1
DO221 DO1 AXM-IO2-2
DO222 DO2 AXM-IO2-2
Output to Relay: If using an AXM-IO1 or AXM-IO3 module, users have the option to send a signal
to the relay output when an alarm is triggered. Select one of the following options in the RO drop-
down menu:
Table 4-2 - Relay Output Alarm Translation
RO Code RO Channel IO Module
111 RO1 AXM-IO1-1
112 RO2 AXM-IO1-1
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NOTE: If RO is under alarming mode, it can only work in the “latch” mode.
Alarming
Parameter
Code
0 Frequency 21
1
2
3
4
5
6
7
8
9
RO Code RO Channel IO Module
Alarming
Parameter
Phase A
Voltage
Phase B
Voltage
Phase C
Voltage
Average
Phase Voltage
Line Voltage
AB
Line Voltage
AC
Line Voltage
BC
Average Line
Voltage
Phase A
Current
121 RO1 AXM-IO1-2
122 RO2 AXM-IO1-2
311 RO1 AXM-IO3-1
312 RO2 AXM-IO3-1
321 RO1 AXM-IO3-2
322 RO2 AXM-IO3-2
Table 4-3 - Alarming Parameter Code Table
Alarming
Parameter
Code
22
23
24
25
26
27
28
29
30
Alarming
Parameter
Total Reactive
Power
Phase A
Apparent
Power
Phase B
Apparent
Power
Phase C
Apparent
Power
Total
Apparent
Power
Phase A
Power Factor
Phase B
Power Factor
Phase C
Power Factor
Total Power
Factor
Voltage
Unbalance
Factor
Alarming
Parameter
Code
42
43
44
45
46
47
48
49
50
51
Alarming
Parameter
Analog Input
Channel 2
(AXM_IO3-1)
Analog Input
Channel 1
(AXM-IO3-2)
Analog Input
Channel 2
(AXM-IO3-2)
Active Power
Demand
Reactive
Power
Demand
Apparent
Power
Demand
Phase A
Current
Demand
Phase B
Current
Demand
Phase C
Current
Demand
Reverse Phase
Sequence
Alarming
Parameter
Code
63
64
65
66
67
68
69
70
71
72
Alarming
Parameter
DI2 (AXM-
IO3-1)
DI3 (AXM-
IO3-1)
DI4 (AXM-
IO3-1)
DI1 (AXM-
IO1-2)
DI2 (AXM-
IO1-2)
DI3 (AXM-
IO1-2)
DI4 (AXM-
IO1-2)
DI5 (AXM-
IO1-2)
DI6 (AXM-
IO1-2)
DI1 (AXM-
IO2-2)
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Alarming
Parameter
Code
10
11
12
13
14
15
16
17
18
19
20
Alarming
Parameter
Phase B
Current
Phase C
Current
Average
Current
Neutral
Current
Phase A
Power
Phase B
Power
Phase C
Power
Total System
Power
Phase A
Reactive
Power
Phase B
Reactive
Power
Phase C
Reactive
Power
Alarming
Parameter
Code
31
32
33
34
35
36
37
38
39
40
41
Alarming
Parameter
Current
Unbalance
Factor
Load
Characteristic
Phase A (Vab)
THD
Phase B (Vac)
THD
Phase C (Vbc)
THD
Average
Voltage THD
Phase A
Current THD
Phase B
Current THD
Phase C
Current THD
Average
Current THD
Analog Input
Channel 1
(AXM-IO3-1)
Alarming
Parameter
Code
52
53
54
55
56
57
58
59
60
61
62
Alarming
Parameter
DI1 (AXM-
IO1-1)
DI2 (AXM-
IO1-1)
DI3 (AXM-
IO1-1)
DI4 (AXM-
IO1-1)
DI5 (AXM-
IO1-1)
DI6 (AXM-
IO1-1)
DI1 (AXM-
IO2-1)
DI2 (AXM-
IO2-1)
DI3 (AXM-
IO2-1)
DI4 (AXM-
IO2-1)
DI1 (AXM-
IO3-1)
Alarming
Parameter
Code
73
74
75
76
77
78
79
Alarming
Parameter
DI2 (AXM-
IO2-2)
DI3 (AXM-
IO2-2)
DI4 (AXM-
IO2-2)
DI1 (AXM-
IO3-2)
DI2 (AXM-
IO3-2)
DI3 (AXM-
IO3-2)
DI4 (AXM-
IO3-2)
4.7.1 Alarm Log
The Acuvim II series meter has built-in alarm logging capabilities where 16 entries in total can be
recorded.
The record sequence of these entries do not depend on the sequence of the 16 alarm channels.
The meter begins logging alarm status starting from the 1st record location to the last one. Alarm
logs are being recorded in a "cycle" fashion which means the latest event will overwrite the oldest
record.
When over/under limit parameters return to normal, its value and timestamp will be recorded
as well. Therefore, users can determine the over/ under limit duration by checking the time
dierence.
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No.: There are 16 alarm entries in the alarm log and this number indicates the alarm
number. For example, the newest alarm record number in Figure 4-18 is record entry 7.
Timestamp: The Acuvim II meter can log the timestamp for when the alarm occurred.
The timestamp format is YYYY-MM-DD hh:mm:ss. The column to the right provides the
millisecond reading for the timestamp.
Alarm Channel: The alarm channel column species which parameter in the Acuvim II
meter was triggered.
Value: Displays the value that triggers the alarm condition as well as the value that
brings the alarm back into normal condition.
Alarming Status: Indicates whether the alarm is triggered or not. For example, when
the status is OUT, the alarm is triggered. When the alarm status is IN, the alarm is back
to its normal condition.
Figure 4-18 - Alarming Records
Limit ID: Refers to the alarm (1-16) that was congured in the alarm settings.
Users can check whether there is a new alarm record as well as the log number associated with
newest alarm record. The alarm log can also be reset from the software, the meter display (refer
to Chapter 3 for screen sequence), or through Modbus communication (refer to Chapter 6).
The alarm logs can be saved via the Acuview software as either plain text, .csv, or as an Excel le.
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4.8 Meter Settings
The meter settings can be configured from the meter display (refer to chapter 3 for screen
sequencing), through the Modbus registers (refer to chapter 6) and from the Acuview software.
The meter settings need to be congured correctly in order for the Acuvim II meter to read data.
After conguring any of the meter settings users will need to click on Update Device at the bottom
of the settings page in order for the setting to take eect.
Figure 4-19 - Basic Meter Settings
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4.8.1 Communication
• Communication Channel 1 - Refers to the meters RS485 communication port; the settings
here are relative to Modbus RTU or DNP over serial communication.
• Protocol - Can be set as Modbus or DNP, Modbus is default
• Address - Is the slave ID, the default is 1 and the range is 1-247.
• Baud Rate - The communication speed in bits per second. The default is 19200 and the
• Parity – Is the communication parity; the default is None 1 which means no parity and 1
• Communication Channel 2 - Refers to the secondary communication of the meter and is
typically communications module (i.e. AXM-WEB2, AXM-MESH, AXM-BMS, etc.).
• Protocol - Is the protocol used for the communications module; by default, it is set for
• Address - The address to be used for accessing the meter via the communication
• Baud Rate - The baud rate should be the communication speed required for
• Parity - The parity setting is None 1 by default which is required for communication with
range is 1200-38400.
stop bit.
OTHER, which is compatible with the Ethernet communications module. When using
AXM-MESH, the protocol should be set for MESH. When using AXM-BMS, the protocol
should be BACnet. When using AXM-WEB2, the protocol should be WEB2.
protocol. For example, if using an Ethernet module and accessing the meter via Modbus
TCP, this address would be used as the slave ID.
communication between meter and communications module. By default, this is set for
38400 which is compatible with AXM-WEB2 and AXM-WEB-PUSH modules. However, if
using the AXM-MESH module, the baud rate must be congured as 9600.
the external communication modules.
4.8.2 Wiring, CT/PT Ratios
• Wiring Mode
• Voltage - The Voltage wiring refers to the type of system that is being monitored by the
Acuvim II meter. By default, the wiring is set 3LN (3 line and neutral) connection. For
more information regarding wiring, refer to Chapter 2.
• Current - The Current wiring setting refers to the number of CTs being used. By default,
the meter is set for 3CT; for more information regarding CT wiring see Chapter 2.
• CT/PT Ratio
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• PT1 - If using Potential Transformers with the meter at the voltage input, this setting
refers to the Primary side rating of the transformer. The range is from 50.0-1000000.0.
If PTs are not being used with the meter, this setting can be left as the default which is
400.0.
• PT2 - If using Potential Transformers with the meter at the voltage input, this setting
refers to the Secondary side rating of the transformer. The range is from 50.0-400.0.
If PTs are not being used with the meter, this setting can be left as the default which is
400.0.
• CT1 - The CT1 setting refers to the Primary side rating of the current transformers being
used with the meter. For example, if 200:5A CTs were being used, the CT1 setting would
be configured as 200. Range is from 5-50000. The default CT1 value for 5A current
input meters is 5, the default for 333mV/mA current inputs is 1, and the default for RCT
current input meters is 1000.
• CT2 - The CT2 setting refers to the secondary output of the current transformers. By
default, the CT2 setting is already congured based on the current input type for the
Acuvim II meter. For example, if you have a 5A current input meter, the CT2 value will
already be congured for 5A. If you have a 333mV current input meter, the CT2 value
is 333, and if you have an RCT current input meter, the CT2 value is 120/60 (120mV per
60Hz).
NOTE: For 5A current input meters, the CT2 value can be changed from 5A to 1A to support
1A secondary output CTs. The mA type current input meters can change the CT2 value from
80mA/100mA/200mA.
• Real Time Reading - The real time reading setting aects the Modbus registers read out of
the Acuvim II meter. By default, the meter is set for Secondary mode which requires that a
multiplier be applied to the register readout. In Primary mode, no multiplier is required.
NOTE: The real time reading setting does not aect the reading on the meter’s display. It only aects the
Modbus register reading of the meter when polling the Modbus registers.
• Current Direction Setting - The Acuvim II supports a setting that allows users to changed the
current direction in the meter. This is benecial is the CTs have been installed in the reverse
direction or if the leads have been terminated to the meter in reverse polarity. By default The
current direction is configured to positive for I1, I2 and I3. Changing the current direction
to negative is basically changing the phase angle of the current by 180 degrees allowing for
correct adjustment if there is an installation error.
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4.8.3 Demand Settings
• Demand Calculation Method - There are four types of demand that the Acuvim II meter
supports: Fixed, Sliding Window, Thermal, and Rolling Window. See section 4.3 for a description
for each calculation method.
• Average Interval Window - Is the averaging time used in the demand calculation method. The
default is 15 minutes, and the range is from 1-30 minutes.
• Sub-Interval - The sub-interval time is used in the rolling block method where the sub-interval
must be a factor of the averaging interval window. The default is 1 minute and the range is
from 1-30 minutes.
4.8.4 Energy Reading & Power Factor Settings
• Energy Type - Users can congure the energy type as either fundamental or fundamental +
harmonics.
• Energy Reading - The energy reading aects the meter calculation. If set for Primary, the meter
will accumulate according to the primary usage. However, if congured as Secondary, the meter
will use the secondary values for the energy accumulation where the resolution of 1 Wh can be
seen.
• VAR/PF Convention - Users can select the convention as either IEC or IEEE.
• VAR Calculation Method - There are two ways to calculate reactive energy (power):
1. True Method – This method uses the Budeanu Concept to calculate the True reactive
power. This method generally uses the harmonic components to do the calculation instead
of using the power vector triangle method. The most common denition of reactive power is
Budeanu’s denition, given by following expression for single phase circuit:
Budeanu proposed that apparent power consists of two orthogonal components, active power
and nonactive power, which is divided into reactive power and distortion power:
2. Generalized Method - This method uses Fryze's concept to calculate the Generalized
reactive power. This method separates instantaneous current into two components, active and
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reactive currents. Active current is calculated as:
And reactive current as:
Active and reactive powers are as follows, where Ia and Ir represents RMS values of
instantaneous active and reactive currents:
4.8.5 Load Percentage
The rated load can be represented in terms of either current or power.
• If current is selected, the rated current that is used would be the CT1 setting value in the PT/
CT ratio settings. For example, if CT1 is set for 1000A and the average current the meter is
monitoring is 500A, the load percentage would be 50% (500/1000).
• If power is selected, the rated primary power would be used in the load percentage
calculation. The max primary power can be calculated as follows:
Max Primary Power without using PTs = 3 * (480) * (CT1)
Max Primary Power using PTs = 3 * (PT1) * (CT1)
The max primary power would be the power that is entered in the Rated Watt Total setting.
The load percentage is displayed on the front of the Acuvim II meter display. The load percentage
is calculated based on the following equation:
Where the meter will have either a 5A or 1A current input. If users have Acuvim II meters with
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Rogowski Coil (RCT), 333mV, or mA type Current Inputs, then 1A is used in this equation.
For example, if the max primary power of your system is 576000W (or 576kW), your system is
currently using 211kW and the meters current input type is 5A, then the load percentage would
be calculated as follows:
The load percentage can only be viewed on the front LCD display of the Acuvim II meter; gure 4-20
shows where it is located on the display.
Figure 4-20 - Load Percentage
4.9 Time & Date Conguration
The meter can have its time and date congured only from the Acuview software or by writing to
the Modbus registers (refer to chapter 6), this is not congurable from the meter display. From the
Acuview software under the System Status section in the Readings tab users can congure the
time and date for the meter.
The meter’s time can be saved when the meter is powered o. However, if the meter is powered
o for seven days or longer, the meter will reset back to its default time.
Users have the option to configure the time manually or synchronize with the PC’s time to
configure the time & date. Simply click on the Set Device Clock button for the setting to take
aect.
NOTE: If users have a communications module, they will need to also configure the time from the
module’s web interface for the time to take eect.
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Figure 4-21 - Device Clock Conguration
4.10 Data Logging
The Acuvim IIR/IIW models support data logging onto the meter internal memory, where these
models include 8MB of memory. The base model Acuvim II does not have the internal memory
and does not support data logging capabilities. The meter is able to log data and store it on to
the meters internal memory where users can read and pull the data from the memory. The data
is logged and has time-stamps to allow users to monitor the exact time each record was logged
at. Data logging is useful for users who wish to analyze the meters data for further research and
billing purposes.
NOTE: If users have the base Acuvim II model, they can log data onto the computer’s memory, however
the Acuview software must be running at all times in order for this to occur.
4.10.1. Data Log Setting
The Acuvim IIR/IIW meters have three data logs available where each log can be independently
programmed with individual settings. This means that each data log can be used to monitor
dierent types of parameters, where the user can program up to 117 parameters per log.
Data Logging Parameters - Users can select the data logging parameters on the software
from the parameter box located on the left of the interface. Users can select different types
of parameters by selecting the parameter type in the drop down menu. The following types of
parameter types are available for data logging:
• Real-Time Metering - Includes real time parameters such as voltage, current, power, etc.
• Demand - Includes both power and current demand parameters.
• Energy - Includes all energy types such as import, export, net, total, reactive, etc.
• THD - These parameters include all THD parameters such as THF, Crest Factor, THFF, etc.
• Voltage & Current Harmonics - Includes all individual harmonic parameters (2nd-63rd
order harmonics for each voltage and current phase).
• Sequence Components - Includes positive, negative, and zero sequence components.
• Phase Angle - Voltage and Current phase angle parameters
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• DI Counter - If using an external I/O module, the user can log the DI counter value
• Analog Output/Input Raw & Scaled values - Users have the option to log the AO/AI
values—both the raw values as well as the scaled values. More information on scaling for
AO/AI can be found in Chapter 5.
Users can click and select the which parameters they want to log and click on the Add button
to add the parameters to the log. Parameters can be deleted by selecting the parameter and
clicking on the Remove button. Users can simply clear the entire data log by clicking on the Clear
All button.
Memory Usage - As users add parameters to the data log there is Space Allocation section of
the software that allows users to monitor the memory. Each data log can have 228 bytes, and
each parameter uses roughly 4 bytes which then allows for a maximum of approximately 57
parameters per data log. The Max records will be dependent on the sector percentage that is
congured for the data log. More records will be available the higher the sector percentage is.
Registers & Sectors - In this section, users can drag the Sector bar to an appropriate value. The
sector range is from 0-100. Having the bar at the maximum of 100 means the data log will use all
of the meter’s memory. The total sector number between Data Log 1, Data Log 2 and Data Log 3
must not be more than 100. For example:
• If you are using just Data Log 1, you can have the sector all the way to 100
• If you are using Data Log 1 and Data Log 2, you can have both sectors at 50
• If you are using Data Log 1, Data Log 2 and Data Log 3, you can have the sectors at 30, 30, and
40.
Logging Interval - The logging interval determines how often the data is recorded in the data
log. The logging interval can be congured from 1-1440 minutes, if the interval is set as 0 the data
log is disabled. If users wish to log at quicker intervals they will need to use an communications
module (AXM-WEB2 or WEB-PUSH) with the Acuvim II meter to log as fast as 1 second.
Logging Mode - There are three dierent types of logging modes that can be congured. Please
note that the time will need to be congured correctly on the meter in order for the data to log
successfully.
• Immediate - This starts logging immediately and does not stop. When the memory is
full, the meter starts to overwrite the data from the oldest data log entry (rst-in, rst-out
method).
• Start Time - This mode has a specic start time for the meter to begin logging. Users will
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need to specify the start time by selecting the hour and minute. Once the data starts to log,
it does not stop and, like the immediate logging mode, the data will start to overwrite the
oldest data log entry once the memory is full.
• Time Interval - In this mode, there is a specic time interval where the meter is logging
data. Users will need to specify both the start and end time for the data log. This will
continue to log until the end time is reached or until the memory is full.
Once all conguration is complete user must click on Update Device at the bottom of the page,
when updating the device data log 1,2, and 3 will be erased. If at anytime the user changes
the data log conguration, when updating the device the existing data logs will be erased. It is
important that users download and save all data logs before changing the conguration.
Figure 4-22 - The Data Log 1 Setting
NOTE: If the memory of the historical data log is full, the meter will erase the rst sector in which the
memory size is 65536 bytes (64kb). The following sector (the second sector) will become the rst sector
and the data from the erased sector will not be recoverable. Therefore, the user should save the whole
log before the memory is full to maintain all data.
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4.10.2 Retrieving the Data Log
The data logs can be retrieved directly from the Acuview software or by Modbus (refer to Chapter
6). In the Acuview software, under the readings tab, select Data Log. The top of the screen will
show an overview of the three data logs which include the Max number of records for the data
log, the number of used records, the record size, the window status, and the rst/last recorded
timestamp.
In the drop-down menu, users can select which data log they wish to retrieve the data from. By
default, Data Log 1 will appear—use the drop-down menu to switch between Data Log 1, 2, and 3.
In the second drop-down menu, users can select the number of records, or a specic range of
records, they wish to view. The following options are available:
• Read newest 50 records
• Read 1000 records
• Read 64000 records
• Read 1000 records (Select Time)
• Read 64000 records (Select Time)
In the Start Record Num users have the option to select which record number to begin reading
the data log, this is not valid when reading the newest 50 records but is valid for all other reading
options.
Once the data log settings are congured click on Read, the data will begin to populate and will
take several minutes depending on the amount of records selected to read. The data will appear
in a tabular format where users can scroll through the data. Figure 4-21 shows the data retrieval.
There are options to save the data where the data log le can be saved as a text, csv, or excel le.
This is done by using the Save to File button.
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Figure 4-23 - Data Log Retrieval Page
4.11 Time-of-Use (TOU)
Most utilities bill customers according to their Time-of-Use rates where customers are billed at
certain rates depending on when the energy usage occurs. The Acuvim II meter supports a Time-
of-Use functions that allows users to assign up to 4 dierent taris to dierent time periods within
the day according to their billing requirements. The meter will calculate and accumulate energy
to each of the dierent taris congured based on the meters time/date and TOU settings.
The Time-of-Use (TOU) must be congured from the Acuview software by selecting TOU under the
Settings tab.
4.11.1 General TOU Setting
• Season Setting - There can be a maximum of 12 seasons congured in the Acuvim II for the
TOU settings. Each season will operate on the TOU Schedule it is congured to.
• Schedule Setting - There can be a maximum of 14 schedules. This parameter determines
the number of TOU schedules available for the TOU calendar setting. Each schedule can be
divided up into time segments and assigned a tari.
• Segment Setting - A segment is included in a schedule and each schedule can have up to a
maximum of 14 time segments. Each segment is assigned a tari.
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• Tari Setting - The Acuvim II supports up to 4 taris in the TOU function. The range is 0-3 for
this setting where 0 means 1 tari and 3 means all 4 taris are used.
• 0 - Sharp
• 1 - Sharp, Peak
• 2 - Sharp, Peak, Valley
• 3 - Sharp, Peak, Valley, Normal
• Weekend Setting - Allows users to assign which day(s) of the week to consider as weekends.
The weekend setting can be set by making use of the following relationship where the 7 days
of the week can be represented by 7 bits. The least signicant bit (bit0) represents Sunday and
bit1-bit6 represent Monday to Saturday.
• A bit that is 0 represents the day is not a weekend
• A bit that is 1 represents the day is a weekend
• The decimal representation of the binary value is what is entered in the setting and the
• Weekend Schedule - If there are weekend settings, the user can congure which schedule to
use for the weekend. Select the schedule number that is in reference to the weekend rates.
• Holiday Setting - A maximum of 30 holidays can be programmed to the TOU calendar. If
the holiday setting parameter is set as 3, the rst 3 slots of the holiday schedule must be set,
otherwise, it will be considered as an invalid input (TOU function will be disabled).
• Fault Status Word - This will display a hex word if there is an error present in the TOU settings.
This word should read 0 if all settings are correct. Table 4-4 explains the dierent error codes
that can be displayed on the software. The Hex values are displayed in the Acuview software.
Error Code (Hex) Error Code (Decimal) Meaning of Error Code
range is from 0-127. For example, to set Saturday and Sunday as weekend, the binary
number would be 1000001, which is 65 in decimal.
Table 4-4 Fault Status Word Translation Table
0 0 Correct TOU settings
1 1 Tari number setting error
4 4 Schedule setting Error
8 8 Season Setting Error
A 10 Segment Setting Error
C 12 Schedule Setting Error
10 16 Parameter of Season Setting Error
20 32 Holiday Number Setting Error
40 64 Parameter of Holiday Setting Error
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Error Code (Hex) Error Code (Decimal) Meaning of Error Code
100 256 Tari of Schedule Setting Error
200 512 Time of Schedule Setting Error
400 1024 Time sequence on schedule setting Error
800 2048 Weekend Schedule Number Setting Error
1000 4096 Weekend Setting Error
Figure 4-24 - TOU General Settings
4.11.2 Monthly Billing Mode
Users can select the monthly billing that matches their billing requirement, where the billing mode
can be at the end of every month or a specic time and date. The format for the time method is
DD HH:MM:SS.
In this section, users can enable the TOU function in the Acuvim II meter by checking the box from
the software. Users also have the option to restore the TOU setting back to its default settings
from this section.
Figure 4-25 - TOU Monthly Billing Mode
4.11.3 TOU Seasons
Enter the start date into the TOU season table slot following format MM-DD ID.
• MM stands for month (range is from 1 to 12)
• DD stands for date/day (range is from 1 to 31)
• ID represents the TOU schedule to run (range is from 1-14)
The dates should be organized so that they are in sequence according to the calendar year (the
earlier date comes first and the later date comes last). For example, if 2 seasons are selected,
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the date parameters are March 31 and November 4, and TOU schedule 01, 02 will be used
respectively, the rst TOU season table slot shall enter 03-31 01, and the second slot shall enter
11-04 02. With this conguration the rst season would be form March 31st to November 4th,
and the second season would be from November 4th to March 31st.
NOTE: If the slot is lled incorrectly, the TOU function will be disabled
4.11.4 TOU Schedule
The TOU Schedule Format can be seen in Figure 4-27, where each TOU schedule represents a 24-
hour cycle. Similar to the TOU season format, enter the start time into the TOU schedule table slot
following this format: HH:MM ID:
• HH stands for hour (range is in 24-hour format, 0 to 24 hours)
• MM stands for minutes (range is from 00 to 60 minutes)
• ID stands for taris (available from 00 to 03).
The time should be organized according to the hour sequence. For example, if 3 segments are
congured, timing parameters are 01:00, 15:30, 22:45, the order of the 3 segments should be one
of the following: 01:00, 15:30, 22:45 or 15:30, 22:45, 01:00 or 22:45, 01:00, 15:30. Entering time
information in a wrong sequence (for example, entering 15:30, 01:00, 22:45) is considered as an
invalid operation and the TOU function will be disabled.
Figure 4-26 - TOU Season Conguration
In gure 4-27 below, TOU Schedule #1 can be described as follows:
• From 12AM to 11AM all energy consumed will be accumulate under the Sharp Tari (Tari ID 0)
• From 11AM to 5PM all energy consumed will be accumulated under the Peak Tari (Tari ID 1)
• From 5PM to 6PM all energy consumed will be accumulated under the Valley Tari (Tari ID 2)
• From 6PM to 8PM all energy consumed will be accumulated under the Normal Tari (Tari ID 3)
• From 8PM to 11AM all energy consumed will be accumulated under the Sharp Tari (Tari ID 0)
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Figure 4-27 - TOU Schedule Conguration
4.11.5 Weekend Settings
Weekends (Alternative): In the case where a TOU schedule supports multiple schedules for a
weekday or weekend within a season, the Weekends (Alternative) can be enabled to allow that
day to run a specic schedule.
NOTE: If this feature is not enabled, the days configured as a weekend in the "Weekend Setting" will
follow the "Weekend Schedule".
Each season can be congured to run an alternative schedule:
• Assign each season with the day(s) that will run the alternative schedule.
• Enter the decimal representation of the binary value for the days that will run the alternative
schedule in the first column of the boxes in the setting. These boxes are numbered to
represent each of the 12 seasons that can be congured for TOU. The decimal representation
can be determined as follows (same as in the "Weekend Setting")
Recall that the weekend setting can be set by making use of the following relationship:
The 7 days of the week can be represented by 7 bits. The least signicant bit (bit0) represents
Sunday and bit1-bit6 represent Monday to Saturday.
• A bit that is 0 means the day is not considered as a weekend.
• A bit that is 1 means the day is considered as a weekend.
Next, for the days that are congured to run an alternative schedule, these days of the week will
need to be assigned a schedule to run. In the second column, enter the schedule number (01-14)
for each day that will run the alternative schedule. Sunday to Saturday are represented from left
to right.
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NOTE: The days to ll in with the schedule number must correspond to the decimal representation set in
the box to the left of this eld.
4.11.6 Holiday Settings
The Acuvim II supports holiday configuration within its TOU function, where a maximum of 30
holidays can be programmed to the TOU calendar. Users can program the amount of holidays
within the TOU calendar by entering a number from 0-30 on the holiday setting in the General
section of the TOU settings. For example if the holiday setting parameter is set as 3, the rst 3
slots of the holiday schedule must be set, otherwise, it will be considered as an invalid input (TOU
function will be disabled).
To configure the Holiday timing users must set the holiday schedule, which uses the same
format as the TOU seasons MM-DD ID. Users can select which TOU schedule to be used for the
holiday. The dates of the holiday schedule do not need to be organized in sequential order (i.e.
the rst slot can be January 1, the second slot can be December 26 and the third slot can be
December 25).
Figure 4-28 - Weekends Alternative Setting
Figure 4-29 - TOU Holiday Schedule Conguration
Ten Year Holiday Setting
Users can preset holidays for the upcoming 10 years via the meter software. Since holiday dates
change as the years go by, this feature allows users to preset the dates.
The holiday format is MM-DD ID, where the ID number is the schedule number to use for that
holiday. Input all the holidays in the Make Holiday Settings (10 year) option located on the bottom
of the page. Enter in the holiday dates, holiday code, and Schedule setting number. The holiday
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codes are dened as follows:
0- Holiday only occurs once
1- Holiday occurs on the same date each year
2- Holiday occurs on the rst Sunday on or after the date entered
3- Holiday occurs on the rst Monday on or after the date entered
4- Holiday occurs on the rst Thursday on or after the date entered
5- Holiday moved from Sunday to Monday
6- Holiday moved from Saturday to Friday or Sunday to Monday
Once all the holidays are entered in the TOU Holiday Code Settings, users can click on Generate to
automatically populate and load all the holidays in the 10-year holiday settings. If the current year
of the meter does not fall into the 10-year holiday setting, it remains as the current TOU settings.
NOTE: The holiday schedule has the highest priority among all the schedules. The weekend schedule's
priority is followed by the Holiday schedule. When the holiday schedule is not enabled, the weekend
schedule has the highest priority, overriding the normal (weekday) schedule.
Figure 4-30 - TOU 10 Years Holiday Conguration
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