This manual may not be altered or reproduced in whole or in part by any means
without the expressed written consent of Accuenergy.
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 specifications before ordering.
[ Document #2010E2211 Revision Date: October 2018]
Please read this manual carefully before installation, operation and
maintenance of AcuRev 2000 series meter. The following symbols in this manual
are used to provide warning of danger or risk during the installation and
operation of the meters.
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.
This mark indicates that this product is UL listed.
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.
Accuenergy shall not be responsible or liable for any damages caused by improper
meter installation and/or operation.
You have purchased an advanced, versatile, multifunction power meter. Please note
the following chapter descriptions in order to utilize the power meter properly.
Chapter 1 Introduces the basic AcRev 2000 features and application areas.
Chapter 2 Introduces AcuRev 2000 installation and wiring methods in detail.
Chapter 3 Walks through how to operate AcRev 2000 via the display panel, display
measurement data and parameter settings.
Chapter 4 Introduces AcuRev 2000 functions with the included software.
Chapter 5 Introduces AcuRev 2000 functions with the included software.
Appendix The appendix provides AcuRev 2000 technical specifications and ordering
AcuRev 2000 series performs real-time metering, measures energy consumption
and monitors power quality for up to 18 single phase circuits (or 6 three phase
circuits) in one unit. It is an advanced intelligent power meter that Accuenergy
developed and manufactured for the next generation smart grids. The main
features include multitenant submetering, cyclic display, tamper proof, which
make it highly suitable for large commercial facilities, residential apartments and
industrial environments. AcuRev 2000 series has infrared, RS485 and Ethernet
communication options as well as I/O options (e.g. Pulse Counting from water or
gas meters), making it useful in energy management systems. Due to its
communication capability, ease of installation and use, this product can be easily
integrated into new and existing energy management systems.
Measurement Function
Voltage: Line Voltage; Phase Voltage
Current: In-line Current; Each Tenant Current
Power and Power Factor: In-line and Each Tenant Power, Reactive Power,
Apparent Power, Power Factor
Demand: In-line and Each Tenant Power, Reactive Power, Apparent Power and
Current Demand.
Energy Function
Energy (kWh) measurement meeting international standards.
Accuracy is Class 0.5.
It has Time of Use feature: 14 Seasons, 14 Schedules, 4 Tariffs, supporting
weekend and holiday settings, supporting daylight saving time and 10-year
holidays automatic switching; It supports kWh pulse output.
System Event Logging
This product runs self-check on systems. When an important operation is
performed (such as reset, energy or demand clear, system parameter changes), it
immediately records the event timestamp, event type (via event state word), and
judges whether relay output needs to be sent.
Over/Under Limit Alarming
Users can select parameters and set their setpoints. An alarm will be triggered
when the setpoint is reached. At the same time, sound and light signals could be
sent out via relay output. The time and reason of an alarm event will be recorded.
Power Quality Analysis
Power quality parameters such as voltage and current THD, Odd harmonic
distortion (Total Odd HD), even harmonic distortion (Total Even HD), 2 ~ 31 times
the harmonic content, Current K-factor (KF), crest factor (CF), telephone
interference factor (THFF), voltage and current unbalance etc. will be monitored.
Standard output ports provide energy (kWh) pulse output and time pulse output;
digital inputs (DI) provide pulse counting from water, electricity and gas meter,
and monitor switch status; relay outputs (RO) react upon alarming conditions.
Data Logging and Load Trending
With 8MB of onboard memory, AcuRev 2000 series can log real-time metering
parameters, I/O status, and energy measurement. This information can be used
for historical trending and system analysis.
Communication and Network
Supports RS485 communication open protocol: Modbus RTU; supports 10/100M
Ethernet interface with protocol ModBus-TCP, HTTP, SMTP, SNTP, SNMP,
DLMS/COSEM; meter reading via infrared port
1.2 Areas of Application
Industrial environment
WARNING: This product shall be installed in an full enclosed industrial cabinet, the
access to which is strictly limited to professional personnel.
1.3 AcuRev 2000 series Features
Multifunction, Multi-Tenants
AcuRev 2000 multi-tenants intelligent power meter utilizes powerful data
acquisition and processing functions, which implements real-time metering and
monitoring for up to 18 single phase circuits (or 6 three phase circuits) in one unit.
It will also record system events, over/under limit alarming and data logging
functions.
Multi-tenant energy information is cycled through on the high-resolution display.
The display panel has two options: embedded in the unit or externally installed on
a panel. Current input has two options: direct input 20(80A) or external CT model.
Flexible Wiring
Users can choose measuring circuits and wiring methods. Measuring circuit can
be selected as 9 or 18 single phases, three phase 3x3 or 3x6, Single-phase or threephase hybrid access, including single phase out(1LN), three phase 4 out (3LN),
single phase 3 out(2LN), where “out” means the load side, Inline defaults to 3phase 4-line(3LN).
Model Selection
AcuRev 2000 series has two models: AcuRev 2010(Basic Measurement) and
AcuRev 2020(Multifunction). The function comparison is listed below:
• The installation must be performed by qualified, competent accredited
professionals who have received formal training and have experience with high
voltage and current devices. Appropriate safety wear (gloves, glasses, arc flush suit,
etc.) is mandatory to ensure safe installation.
• During normal meter operation, caution should be used when handling the
following as high voltage may be present: Terminal Blocks, Current Transformer
connection nodes, Potential Transformer connection nodes and the related circuits.
All primary and secondary circuits may contain lethal current and voltage. Contact
with current channels must be avoided.
• The power meter and I/O modules cannot be installed on the primary side of
transformers or where VA has limitations. The power meter can be only installed
on the secondary side. Avoid contact with meter terminals after the completion of
installation.
• Do not input voltage above the rated maximum limit of the power meter and
devices connected to it. Before energizing the meter, please refer to the meter's
label and specifications.
• Do not perform high voltage test / insulation experiment to output, input or
communication terminals.
• The use of shorting blocks and fuses are recommended. Current transformers need
to be grounded.
• Use dry cloth to wipe the meter.
• The replace of the Battery must be performed by professionals
• The installation method is introduced in the chapter. Please read this chapter
Note: Failure to follow manufacturer guidelines for installation and use may
compromise the safety of the meter and the user.
Note: Any repair should only be performed by the manufacturer.
A switch or circuit breaker should be utilized in the equipment. The switch should be
placed close to the equipment and easy to reach. The switch is regarded as a part of
the breaking device
2.1 Appearance and Dimensions
Fig.2-1 AcuRev 2000 Appearance
Meter Base
If a Display Module is specified, an RJ45 jack is equipped in the Meter Base, where
the attached cable should be plugged in to connect the Display Module to the Meter
Base. See Figure 2-1.
If the Display Module is not specified, the Display Module is embedded in the Meter
Base. See Figure 2-2.
Appearance:
Figure 2-1 Meter Base with external Display Module
Before installation, please check the environment, temperature and humidity to
ensure the Acuvim 2000 series meter is being placed where it will not be damaged.
1. Temperature
AcuRev 2000 operating temperature is -25~70°C.Exceeding this temperature
range will cause damage to the meter. Please note it can influence the meter life
negatively if the meter operates in extremely high or extremely low temperatures.
AcuRev 2000 storage temperature range is -40~85°C.
2. Humidity
5% to 95% non-condensing.
3. Location
AcuRev 2000 series meter should be installed in a dry and dust free environment.
Avoid exposing meter to excessive heat, radiation and high electrical noise
sources.
The Display Module is factory installed on the meter base. Users can use the meter
base and display module combination directly. The following steps show how Display
Module is installed.
1) Firstly, make a standard panel Cut Out as the Figure 2-16 shows. Unit: mm.
2) Remove the clips of Display Module, install the module into the Cut Out in the
3) Install the Display Module into the Cut Out. The module front panel will appear at
the front of the Cut Out, the Meter Base case and wiring terminals will appear at the
back of the Cut Out. Then, put on two installation clips following the grooves at the
back of Display Module, and push forward to tighten the clips. Make sure the clip and
the panel are joined tightly. Tighten the screws as Figure below shows and the
installation is completed. See Figure 2-18.
Upper row: Power Supply, Pulse Output, Communication, NET
Lower row: Digital Input, Relay Output.
External CT Module (EM) Terminals
The upper row has voltage input terminals, the lower row has current input
terminals.9 channel inputs correspond to I1-I9, it only requires one EM1 module.18
inputs correspond to I1-I18, it requires two modules: EM1 and EM2.The following
figure shows 18 channel inputs.
The upper level has voltage input terminals, the lower level has voltage output
terminals. 9 channel inputs correspond to V1-V3, it only requires one DM1 module.18
channel inputs correspond to V1-V6, it requires two modules: EM1 and EM2.
AcuRev 2000 power supply is 100-415Vac, 50/60Hz or 100-300Vdc, which are
universally supported. If any other power supply is required, please contact the
manufacturer. The power consumption of the power meter is low during normal
operation; therefore, the power supply can be either via a standalone power supply
or via the measured circuit. A regulator is recommended where the voltage is not
stabilized. The power supply terminal number is L/N/G.
Power Supply wiring is AWG22~16 or 0.6~1.5mm2.
A fuse or small size circuit breaker is mandatory for AcuRev 2000 Power Supply. The
fuse recommendation is 1A/250Vac, time delay. If a circuit breaker is utilized, it must
be CE certified and comply with IEC 947 standard.
An isolated transformer or EMC filter should be used in the auxiliary power supply
loop if there is a power quality problem in the power supply.
400Vac L-N, 690Vac L-L.A fuse (typical 1A/250Vac) or air circuit breaker must be used
in the voltage input loop.
Current Input signal
Current Input has two options: Direct Connection or Via CT (Current Transformer)
Connection. DM module is utilized in Direct Connection, while EM module is utilized
in Via CT Connection.
For Direct Connection, each tenant maximum current is 80A, nominal current 20A.
For Via CT Connection, the CTs are solid core type, and should be installed first. The
CT accuracy is 0.2%, options are 20A, 80A, 150A, 200A, 250A, 1000A Current
transformer or 0.333V Voltage Transformer.
Vn Connection
Vn is the voltage reference point of AcuRev 2000, a low resistance to Vn connection
contributes to a better measurement accuracy. Vn connection is related to the system
wiring. Please refer to "Wiring Methods" for details.
AcuRev 2000 wiring methods can be selected in system parameter settings. Inline
defaults to 3-phase 4-line(3LN), load wiring can be set to single-phase (1LN), threephase four-wire (3LN), single-phase three-wire (2LN).
The followings introduce EM and DM wiring methods in those three scenarios.
AcuRev 2000 communication utilizes RS485 port, via Modbus-RTU protocol. The
wiring terminals are A, B, S (1, 2, 3). "A" is called differential signal "+", "B" is called
differential signal "-", "S" is connected to the shielding of shielded twisted pair cable.
The maximum distance of Shielded Twisted Pair cable is 1200 m. The distance will be
shorter if more devices are on the same communication link or using a higher baud
rate.
If the master device does not have RS485 but RS232 port, a RS232/485 converter can
be utilized. Typical RS485 network topologies include line, circle and star (wye).
In order to improve communication quality, please pay attention to:
1. High-quality Shielded Twisted Pair cable is very important, AWG22 (0.6mm2)
or lower is recommended. Two cables should be different colors.
2. Pay attention to "single point earthing". It means there is only one point of the
shielding connected to ground in a single communication link.
3. Every A (+) should be connected to A(+), B(-) to B(-), or it will influence the
network, even damage the communication interface.
4. "T" type connection topology should be avoided. This means no new branches
except from the starting point.
5. Keep communication cables away as much as possible from sources of
electrical noise. When several devices are connected (daisy chain) to the same
long communication line, an anti-signal reflecting resistor (typical value 120O3000Ohm, 0.25W) is often used at the end of the circuit (the last meter of the
chain) if the communication quality is distorted.
6. Use RS232/RS485 or USB/RS485 converter with optical isolated output and
surge protection.
7. An infrared port is also available in the Display Module, which supports meter
reading. AcuRev 2000 also supports 10/100M Ethernet (optional), its protocol
is ModBus TCP, SMTP, HTTP, SNMP, SNTP.
Increase tenant number or move cursor to the
Right
OK
Confirm
Show menu or confirmation
Function Keys:
Table 3-1 Function Keys illustration
Key Combination
Holding “Left” and “right” at the same time is quick exit function, In any screen, press
this key combination can return to the main menu screen, basic settings and network
settings are only available with this key combination to return to the main menu
screen.
Wiring type
The meter supports single-phase user (1LN) and three-phase four-line users (3LN)
mixed use, single-phase user (1LN) and single-phase three-wire user (2LN) mixed use.
In- line of all connection types according to the three-phase four-wire user (3LN)
display.
Display Mode
Display company name “ACCUENERGY” in LCD screen when powered up, after 2
seconds entering the main menu screen automatically. Arrow keys to move the cursor
position, "OK" button to confirm and enter the corresponding menu. If you enter "M"
quick code screen, the left and right keys to move the cursor, up and down keys to
change the value, the "OK" button to confirm and enter the corresponding screen.
In the main menu screen, move the cursor to the setting icon, press “OK” to enter the
settings mode. After the password screen, it will display language setting screen. Press
“OK” to activate the cursor. When the cursor is inactive, arrow keys to scroll the
screens. When the cursor is active, the cursor blinks, “Up” and “Down” to change the
value where the cursor stays, “Left” and “Right” to move the cursor, “OK” is for
confirmation.
LED indicator from top to bottom:
L1- Power Supply. Remains on when the meter is powered. Turns off when meter is
not powered.
Main menu screen is shown in Table 3-2, the arrow keys to switch between menus.
3.2 Energy Display and Operation
On the first screen of main menu, select "E" by pressing "Left" and "Right", press "OK"
to display energy. Press "Left" or "Right" to choose tenant and in line energy. Press
"Up" and "Down" to select different screens. Press “OK" return to main menu screen.
If TOU energy is not used, it only displays real-time energy.
Different wiring, energy data display is not the same, Inline default 3LN wiring, outline has three ways: single-phase out (1LN), three-phase four-wire out (3LN), singlephase three-wire out (2LN), Details are as follows (AcuRev 2010 meter does not show
the screen of yellow background):
On the first page of the main menu, press "D", then press the “OK”, the meter displays
demand. “Left” and “Right” keys to select a different user or Inline. “Up” and “Down”
keys to select the current user's different screen, press "OK" button to return to the
main menu.
For AcuRev 2010, only displays the active power demand.
Table 3-7 Demand display
Different wiring, demand data display is not the same. Details are as follows (AcuRev
2010 meter does not show the screens of yellow background):
On the first page of the main menu, press "left" and "right" to choose "IO" then press
the center key, the meter displays IO data. “Up” and “Down” to select a different
screen, the "OK" key to return to the main menu.
On the first screen of the main menu, select "MUL" (real-time), press the "OK" button,
the meter displays real-time. “Left” and “right” keys to select a different user or inline,
“up” and “down” keys to select the current user's different screen, the "OK" button to
return to the main menu.
For Acurev2010, only display the active power.
Different wiring, Real-time display is not the same. Details are as follows (AcuRev 2010
meter does not show the screen of yellow background):
On the first screen of main page, press "Left" and "Right" keys to choose "M", then
press the “OK” key to enter Shortcut Keys page.
Press "Left" and "Right" to move the cursor to choose different digit. Press "Up" and
"Down" key to change the digit value, after the input of Shortcut Code, press the
center key to enter the corresponding pages.
Shortcut Code consists of five digits. The first digit on the left is to choose functions,
as depicted in Table 3-8. 1 represents energy measurement, 2 represents demand
measurement, 3 represents Digital Input Digital Output, 4 represents real-time, 5
represents Power Quality, all the other parameters do not have shortcut code.
Left in the second and third digits are the number of selection screen, the right side,
the first and the second is to select the user number. When user Settings screen
number is not correct or the selected user number is not enabled, the connection
mode of the display module based on user and instrument types and set up
accordingly.
When user Settings screen number is not correct or the selected user number is not
enabled, the connection mode of the display module based on user and instrument
types and set up accordingly.
Tip "USER WRONG" indicating that the user is not enabled;
Tip "SCREEN WRONG" setting screen instructions when the number exceeds the limit
or chose not to support the screen
Different connection types are also different codes, detailed shortcut code
corresponding to the screen, please follow this swift code table:
Phase A this month total power-sharing.
Phase A this month tariff 1energy, Phase A
this month tariff 2 energy.
#
8
12801~12818
Phase A this month tariff 3 energy, Phase A
this month tariff 4 energy.
#
9
12901~12918
Phase A prior month total energy, Phase A
prior month tariff 1energy, Phase A prior
month tariff 2 energy.
#
10
13001~13018
Phase A prior month tariff 3 energy, Phase
A prior month tariff 4 energy
#
11
13101~13118
Phase B this month total energy. Phase B
this month tariff 1energy, Phase B this
month tariff 2 energy.
#
12
13201~13218
Phase B this month tariff 3 energy, Phase B
this month tariff 4 energy.
#
13
13301~13318
Phase B prior month total energy, Phase B
prior month tariff 1energy, Phase B prior
month tariff 2 energy.
#
14
13401~13418
Phase B prior month tariff 3 energy, Phase
B prior month tariff 4 energy
#
15
13501~13518
Phase C this month total energy. Phase C
this month tariff 1energy, Phase C this
month tariff 2 energy.
#
16
13601~13618
Phase C this month tariff 3 energy, Phase C
this month tariff 4 energy.
#
17
13701~13718
Phase C prior month total energy, Phase C
prior month tariff 1energy, Phase C prior
month tariff2 energy.
#
2. Three Phase 4 Out (3LN)
Description: 3LN number of screens begin to run from 21 to distinguish 1LN, 2LN
Note "*" to indicate that only Acurev2020 meter has feature
Note the "#" is enabled only content sharing
*: The instrument is Acurev2010, enter an asterisk zone function code when
prompted SCREEN WRONG
3.7 Power quality display and key operation
For AcuRev 2010, no power quality menu.
In the second page of the main menu, select "PQ" (quality), press the "OK" button to
begin the display of power quality data. “Left “and “right” keys to select a different
user or into the line, “up” and “down” keys to select the current user's different
screen, the Enter key to return to the main menu.
Table3-9 Power quality display
Different wiring, current quality data display is not the same. Details are as follows
(AcuRev 2010 meter does not show the screen of yellow background):
In the second page of the main menu, select “SET”, press the “OK” button, the
password inquiry is passed, display language setting interface, the "OK" key to activate
the cursor, the cursor is activated, the cursor blinks. When the cursor is not activated,
the arrow keys to scroll; when the cursor is activated, the up and down keys to change
the value at the cursor, left and right keys to move the cursor, the "OK" button to
confirm the changes and stop the cursor. Combination of keys (left and right keys
pressed together) to return to the main menu.
When the meter using the DM module, then no CT setting interface set interface;
when the meter type is Acurev2010, the basic interface is not (P25) reactive power
calculation methods setting interface and (P26) load protocol selection interface.
P04 extended serial baud rate and parity settings are infrared meter display module baud
rate and parity bit is set; DI constant represents the input number of pulses counted once. DI
units represent physical unit that DI count value representing, there are five kinds: t, m3,
kWh, ¥, $. DI values represent physical quantity that pulses counted once representing. P33
restore factory setting meaning the user's name, mapping relationship, wiring, CT type revert
to the default values.
Select the channel number: For each user corresponding physical channel mapping, mapping
relationship in the following table.
In the second page of the main menu, select “NET”, press “OK” button to enter the password
screen, the password authentication is passed into the network settings screen. When the
cursor is not enabled, the arrow keys to scroll, when you press the "OK" button to move the
cursor starts blinking, left and right keys to switch cursor positions, up and down keys to set
the value of the parameter. After setting parameters, press the "OK" button to set
parameters success while the cursor is no longer flashing. Combination of keys (left and right
keys pressed together) to return to the main menu.
P01 DHCP represents DHCP address allocation mode setting, MANU (static allocation) and
AUTO (dynamic allocation); P09 network module reset options include not reset, reset
network module and restore the default parameters and reset the network module
Network module. Network settings only apply to network module, after setting each network
module needs to be reset before work.
In the second page of the main menu, select "INFO" (message), press the "OK" button to start
the meter information display. Arrow keys to scroll, press the "OK" button to return to the
main menu.
Energy pulse output setting: energy pulse settings include Pulse Constant and Pulse
Width. Pulse Constant's range is 500-20000, Pulse Width range is 20-100ms. In
practical applications, Pulse Constant and Pulse Width should be set according to the
system's real power, otherwise it will influence the system's energy accuracy.
Pulse Period = 3600000 /(Real Power x Pulse Constant)
Pulse Period > Pulse Width
The following equation must be fulfilled in order to ensure the energy accuracy, the
unit of Real Power is kW, Pulse Width is ms.
3600000 /(Real Power x Pulse Constant)> Pulse Width
For example, if the Real Power is 35.2 kW, Pulse Width = 3600000 /(35.2 x Pulse
Constant), it must meet 3600000 /(35.2 x Pulse Constant)>Pulse Width.
Note: The voltage rating is set for alarm, as the voltage rating in the alarm settings.
About user name and the corresponding channel are described below:
a) The user name can be customized, supports up to six (only supports letters and
numbers)
b) correspondence between the 101-118 refers to the physical channel 1-18 road
301/201- 306/206 phase refers to the user's physical channel corresponding
c) If either one is not used, you can set the corresponding channel is not displayed (i.e.:
remove allowed to display on the hook)
CT model as follows:
When using EM modules: Different channels can access different types transformers,
as required by the customer can be independently set.
For example: The first one username Jack01, wiring is 3LN, the first channel phase
(composed by the channel 1,4,7); following settings the # 1 users change the name of
Jack01, the corresponding channel is set to 301/201, check allows the display, the
user's wiring phase change 3LN.
Note: after the setup, "Update Device" must be clicked in order to send the settings
to the meter. All the other setting operations should follow this as well.
4.1 Basic Parameter Functions
The basic parameters measured in the AcuRev 2000 are voltage, current, power, etc.
Th e base module only displays power, including system power, inline A, B, C power,
and each tenant's power. Different wiring methods lead to different displays. The
following figure is the display of basic parameter measurement (take the first one 3LN
wiring for instance).
Note: the “user” above is optional, select the user name to be displayed, the user
divides the screen into two parts: the upper part is the inline power, the lower part is
the user power. When wiring is set differently, gray data is invalid.
In the upper display, Pa represents Phase A Power; In the lower display, Pa (N)
represents the N-th tenant's Phase A power. The power accuracy is 0.5 %, with 4
decimal places.
As Figure 4-5 shows, AcuRev 2000 has 4 Relay Outputs (RO), 8 Digital Inputs (DO).
Please refer to Figure 4-6 for DI/RO related settings.
RO
Each channel RO can be configured as Relay Control or Alarm Output.
(1) Relay Control: Latching or Pulse; Pulse width can be set between 50 and 3000 ms.
(2) Alarm Output
There are two Alarm Output types: Over/Under Limit Alarming and System Event
Alarming, the two can be active at the same time. Over/Under Limit Alarming will be
introduced in detail later.
There are 12 events for system event alarming, which are:
These 12 events can enable the output of Relay 1 to Relay 4 for alarming. The time
delay for alarming signal is 1-60000 s (the Relay Output status will latch for that
amount of time).
If the Relay Output type is set as Relay Control, click "Control" in Figure 4-5 to send
command "close" or "open" to the relay. When the relay is set as alarming output,
Relay Control function will be disabled.
DI Function
DI type: Signal Status; Pulse Counter
DI unit and category: s (seconds), m3 (cubic meters), kWh (energy), RMB (Renminbi),
$ (dollar).
When DI type is set as Signal Status, it monitors the input status, providing all DI status.
High level displays as "ON", low level displays as "OFF".
When DI type is set as Pulse Counter, it counts the input pulses. The Pulse Counter
settings include Pulse Constant (how many pulses equals one count), Category and
Unit, Value 83 Figure 4-6 DI/RO and System Event alarming setup (Category multiplied
with the count number). The display panel displays the number corresponding to the
pulse, as well as the calculated value.
For instance, if set 10 pulses = one count, one count represents 5 kWh. When 100
pulses are input, the display panel will display Number = 100/10=10, 10*5=50 kWh.
2-channel energy pulse output, the two channels can be used to send out independent
energy pulses (see Appendix B), Pulse Constant, Pulse Width can be set. Tenant
Number, Pulse Constant and Pulse Width settings can be implemented as Figure 4-2
shows.
1 channel demand cycle pulse output.
1 channel second pulse output is used to check the system clock's accuracy, or used
to be the benchmark of time for the other equipment.
Display Demand, Max Demand, Max Demand Time, Demand Prediction (update per
second) of the real power. The users are selective. The user divides the software
window into two parts, the upper part indicates the demand related parameters, the
lower part indicates the demand of each individual tenant.
Demand calculation has four methods: Sliding Window method, Fixed Window
method, Rolling Window method and Thermal method. Users can set the demand
period (1-30 minutes) and secondary demand period (1-30 minutes) according to
different calculation methods. All related settings can be found in Figure 4-2.
Support Demand Synchronization
Method: Synchronizing with DI; Synchronizing with Command
DI Synchronization: DI triggering can be chosen as no triggering, triggered by rising
edge, triggered by falling edge, triggered by changes. DI Synchronization source can
set as DI1-DI8.The Synchronizing with DI settings is in Figure 4-2.
The Synchronizing with Command: choose "Clear Demand" in Figure 4-7.
Demand cycle or secondary cycle finishing signal can be sent out by DO.
4.4 Energy
Time of Use bi-directional real energy measurement. It saves up to 2 months energy
data, data saving boundary time can be any specified day (auto meter reading day)
between 1 and 28. The factory default is at 0 o'clock the first day of each month.
Displays real-time energy, this month TOU energy, prior month TOU energy, individual
tenant real-time energy, this month individual tenant TOU energy, prior month
individual tenant energy, Critical-peak, On-peak, Mid-peak, Off-peak energy reading.
If TOU energy measurement is not enabled, it displays real-time energy only.
The user divides the screen into two parts, the upper part indicates inline energy
parameters, the lower part indicates the individual tenant energy parameters.
Season: the maximum season number is 14. If the season number is smaller than the
programmed season number, the energy meter only utilizes the first seasons (for
instance, if the season number is 2, it only runs the first 2 seasons).
Schedule: the maximum schedule number is 8. If the schedule number is set as 3, the
4th to the 14th schedules will be unavailable.
Segment: the maximum segment number is 14. If the segment is set as 4, the 5th to
the 14th segments will be unavailable. Only the first 4 segments are available.
Tariff: the maximum tariff number is 4. If tariff number in the schedule is larger than
the set tariff number or equals 0, the energy in this schedule will be using tariff 1.
Weekend: setup the schedule number according to weekends.
Holiday: the maximum holiday number is 30. If it is set as 0, it indicates public holiday
disabled. For instance, public holidays, such as January 1, December 25th, which users
can set. Public holidays and their schedule number can be configured as different
public holidays by using different schedule numbers.
Note: if the public holiday and weekend schedule number is set as 0, it means these
public holidays are unavailable. If the weekend and public holidays are overlapped,
the public holiday overrides the weekend setting, holiday has the higher priority.
Parameter Settings: changing tariff settings will do an auto check. If there is an error
found, it will send out an alert and an error message status. In the error state all tariffs
should follow tariff 1, until the status is corrected. Season and Schedule settings must
be continuous, the starting time of the 2nd season is the ending time of the 1st season,
the same rule applies to the rest.
Daylight saving time (DST): Daylight saving time can be enabled in one of two formats:
The fixed date option, or a fixed day of one of the weeks in the month (also named as
the nonfixed date option). if you choose a fixed date option, you set the format
according to a fixed date, for the daylight-saving time switch: the format month / day
/ hour / minute / adjust time (in minutes). If you choose non-fixed date option, DST
will be implemented by which day of which week, whose setting format is
month/which day (i. e. Tuesday)/which week (i.e. 1st week)/hour/minute/adjust time
(in minutes).
By using the function, you can cause the instrument to automatically switch to and
from daylight saving time. When the clock starts to run to daylight saving time, the
meter will automatically adjust the clock to a time period in advance, while the clock
is running to the end of daylight-saving time, meter will automatically adjust the clock
pushed back to a time period, as shown in Figure 4-10
Ten-year Holiday setting
Users can pre-set holidays of the next decade via the meter software. The holiday
format is month/day/year; holiday code; holiday schedule. After the format setup,
click on "Make Holiday Settings (10 year)", then a holiday table for the next decade
will be generated.
Holiday Auto Switch: When Ten-year Holiday is enabled, if the current year of the
meter falls into the Ten-year Holiday setting, it automatically loads the Ten-year
Holiday settings into the current TOU settings. If the current year of the meter does
not fall into the Ten-year Holiday setting, it remains the current TOU settings.
When DI is used as remote signal detection, it will record SOE. SOE is when DI circuits
detect the change of the signal voltage level, it records the channel, the event and the
event's timestamp.
The SOE records DI1-DI8 input status change and its time, it allows up to 20 events.
The newest event number can be displayed.
Alarming records alarming timestamp, alarming parameter, over/under limit value,
alarming status and alarming condition. Users can setup alarming conditions in "Alarm
Setup". The maximum alarming record is 20.
Note: The alarming threshold value is not a real measured value, it is the percentage
of real measured value over rated value. For instance, if the rated value is 1100, the
displayed threshold is 40, then real value = rated value x percentage = 1100×40% =
Set up alarming rule, including alarming parameter, alarming condition, alarming
target, delay time (ms) and alarming output.
Energy and alarm switch can be set at the same time. Current rating and voltage rating
are the load's current and voltage ratings. (Current rating relates to transformer type,
such as CT-20 transformer current rating is 5A)
The maximum alarming condition can be set as 10.
Alarming parameters includes inline basic parameter, tenant basic parameter, inline
demand and tenant demand.
Inline basic parameters: system real power; real power Pa; real power Pb; real power
Pc.
Channel Basic parameters: system real power; real power Pa; real power Pb; real
power Pc.
Inline demand: system real power; system real power demand prediction; system
power demand Pa; power demand Pa prediction; system power demand Pb; system
power demand Pb prediction; system power demand Pc; system power demand Pc
prediction
Channel Demand: System Power; real power demand Pa; real power demand Pa
prediction; real power demand Pb; real power demand Pb prediction; real power
demand Pc; real power demand Pc prediction.
Condition: >(larger than); =(equal) ;
Alarming setpoint: alarming setpoint is expressed by the percentage of rated value.
For instance: voltage rating is 220 V, transformer type CT-20, now it requires alarms
when the 1st tenant's real power is larger than 3 kW. Since rated power is 1.1 kW,
3kW is 1.1kW 273%, then set alarming setpoint as 273.
Logs system event date and type. Please refer to the 12 system events in 4.2. The max
record number is 100.It can be chosen as "the newest 20 records" or "all records".
4.8 Trending Record
In order to have the user understand meter's history, the meter provides trending
record function, which is logging a group of data with a preset time interval. AcuRev
2000 has 8 MB of memory, which is used for logging the historic trending. The meter
has a system clock therefore, all of the trending records have a timestamp when they
are created.
Trending Record Setup
AcuRev 2000 has 3 trending logs, each log can be programmed individually. Different
contents can be added into 3 logs. Each log slot can be added up to 117 parameters.
The memory size of the 3 logs can also be configured, however, the total sector
number of the 3 logs cannot be over 100 (each sector has 64 kB. Trending log #1
configuration page can be found in Figure 4-13.
Different contents can be added into 3 logs to meet users' requirements. For example,
log #1 can be configured as basic parameter measurement (such as Power), log #2 can
be configured as energy measurement, log # 3 can be configured as demand
measurement. log # can be choose from 8 categories:
Users can set different parameters from the 8 categories. Generally, one trending
record needs the following settings:
1) 8 categories;
2) Choose Parameters:
a. Select the interested parameters from the left column.
b. Press "Add" button, the selected parameters will be added to the right column. c.
If a parameter needs to be removed, select the parameter in the right column, click
"Remove" to deselect it.
3) Set logging interval:
The logging interval can be set as any integer between 0-1440.It is how often a
record will be logged. When it is set as 0, the logging feature is disabled.
4) Log sector size setup:
The log sector size can be selected between 0 and 100. Make sure the total sector
number of the 3 logs does not exceed 100.
• If logging Timer mode is selected as Mode 2, when the memory is full, no
more records will be logged. If you choose to Mode 1 or Mode 3, when the
memory is full, the meter keeps logging, the earliest records will be
overwritten by the latest record.
• When overwriting happens, the earliest whole sector will be erased (64 kB data
will be erased). It is recommended that users retrieve all the data and save
them before the memory is full in order to avoid data loss.
• There are two regions displaying register number, total used bytes and
remaining bytes. These values are automatically calculated by the software
according to users' selected parameters. The total bytes available is 234.
Retrieve Record
There are two methods to retrieve records: manual retrieve and automatic retrieve.
The retrieve page can be found in Figure 4-14.
In manual retrieve mode, users can adjust Offset and Window Record Number. Offset is the
deviation number from the first record. Window Record Number is 246 / Record Size, users
can retrieve no larger than this number of records by pressing "Read One Window" button.
In automatic retrieve mode, the software retrieves all the Used Records in the memory
automatically. Users just press "Read All" button.
Bit0: RS485 communication parameters and
infrared communication parameters Bit1:
network parameters
Bit2: Clear Meter Run Time
Bit3: DI pulse counting
Bit4: TOU
Bit5: RO
1: valid of corresponding selection
0: invalid of corresponding selection
8B0H
Seals status
0x0A: Seal sealed; Other: Seal opened.
4.9 Seal Function
The display module with seal, which has sealed key control, is different with one without seal.
When the seal is in opened status, functions are same like normal meters. But when the seal
is in sealed status, some functions of meters, which include parameters blocked by seal and
optional parameters, will be blocked. These parameters can still be accessible by keys and
communication way if they can be accessed before, but in sealed status, these parameters
cannot be modified by keys or communication way anymore.
Addresses about seal function are 8AFH and 8B0FH.
Address 8AFH is about parameters blocked by seal, which can be configured by users. These
setting will be valid only when seal is in sealed status.
Address 8B0H is about if seal function is valid. When the display module is normal one, not
connected display module, or the seal module is in invalid sealed status, this address will
show seal is open. When the seal is valid, this address will show sealed status and
corresponding parameters will be blocked.
Parameters blocked by seal
As long as seal is in sealed status, parameters below must be blocked, no matter
what value of address 8AFH.