Acrel ACR10R-D TE Series Technical specifications

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149
Rail-type Multifunction Electrical Instrument
Use and Installation Manual V1.1
Acrel Co., Ltd.

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申 明
Announcement
Please read the manual carefully before using the product. The pictures, marks
and symbol in the manual belong to Acrel. The manual or part of it shall not be
publicly reprinted by people outside the company without written authorization.
The manual will be continuously updated and corrected but it is inevitable to see a
little discrepancy or error if compared with the real products. Please refer to the purchased
real product. The latest version of the manual is available on www.ACREL.cn or
sales channel upon request.

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目录 Content
1． 概述 Overview .............................................................................. 1
2． 产品规格 Product Specifications ............................................................ 2
3．产品功能 Product Function ................................................................... 2
4．技术参数 Technical Parameters ............................................................... 3
5．安装 Installation ........................................................................... 4
5.1 外形及安装尺寸 Overall and Installation Dimensions ..................................... 4
5.2 开口式互感器尺寸 Open Current Transformer’s Dimension ................................. 4
5.3 安装方法 Installation Method ........................................................... 5
5.4 接线方法 Connection Mode ............................................................... 5
6．编程与使用 Programming and Use .............................................................. 6
6.1 面板说明 Panel Description ............................................................. 6
6.2 按键功能说明 Button Function Description ............................................... 6
6.3 操作说明 Operation Instructions ........................................................ 7
6.4 编程菜单 Programming Menu .............................................................. 8
6.5 编程示例 Programming Examples ......................................................... 11
7．通讯接线 Communication Connection .......................................................... 14
7.1 传输方式 Transmitting Method .......................................................... 14
7.2 信息帧格式 Information Frame Format ................................................... 14
7.3 功能码简介 Function Code Introduction ................................................. 16
7.4 通讯应用细节 Communication Application Details ........................................ 17
7.5 通讯地址表(MODBUS-RTU 协议) Communication Address List (MODBUS-RTU Protocol) ........... 18
7.6 通讯接线实例 Communication Connection Cases ........................................... 20

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Note: The instrument must be installed on the spot together with a complementary
split-core current transformer .
1Overview
The rail-type multifunction electrical instrument with external Rogowski coil and split-core current
transformer is applicable for the energy-saving reconstruction project in high energy consumption
industries including the smelting, iron and steel, welding and semi-conductor industry. It is also suitable for
applications such as the power monitoring of grid-connected cabinet for distributed photovoltaic power cabinet
and energy demand management. It boasts of no need of bus removal, easy connection and safe construction, saving
reconstruction cost and raising efficiency for the user. It integrates the measurements of all electric parameters
(including single-phase or three-phase current, voltage, active power, reactive power, apparent power,
frequency and power factor）and comprehensive energy monitoring and examination management. Meanwhile, it also
has various peripheral interfaces for the user to choose: the RS485 communication interface with MODBUS-RTU protocol
can meet the need of online communication management; the interfaces with switch input and relay output can realize
the remote signalling and remote control of the circuit breaker switch. It is very suitable for real-time power
monitoring system with an LCD display and the panel buttons to realize the setting and control of parameters.

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2．Product Specifications
ACR -
开口式互感器型号：D10-Φ10mm，80A; D16-Φ16mm，120A
D24-Φ24mm，200A; D36-Φ36mm，300A
T-外置开口式互感器
ACR系列网络电力仪表
10R-导轨式安装
E-单相
E-单相 E-Single-phase
T-外置开口式互感器 T-External open current transformer
开口式互感器型号 Open current transformer model:
10R-导轨式安装 IOR-Rail-type installation
ACR 系列网络电力仪表 ACR series grid electrical instruments
Product Function
Model
Function
ACR10R-DxxTE
Measurement
Parameters
Single-phase current ■
Single-phase voltage ■
Single-phase (active power,
reactive power, power factor） ■
Three-phase (active energy,
reactive energy) ■

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Note:1.“■”refers to standard function, the standard configuration for above instruments is 1 channel
RS485 communication.
-4 Technical Parameters
Technical parameters Indicators
Input
Grid Single-phase,
Frequency 45～65Hz
Voltage
Rated voltage: AC 100V, 400V
Overload: 1.2 times the rated voltage(continuous); 2 times the rated
voltage lasting for 1 second
Power consumption: less then 0.2VA
Current
Rated current: 10A，20A，40A，80A，120A，200A etc. (for details see product
specifications)
Overload: 1.2 times the rated current(continuous);10 times the rated
current lasting for 1 second
Power consumption: less then 0.2VA
Output
Communication RS485 interface, Modbus-
RTU
Display LCD
Measurement precision
Voltage: 0.2 level, current, power Active energy: 0.5
level,0.01Hz frequency, Reactive energy: 1 level
Power supply AC85～265V or DC100～350V; power consumption ≤10VA
Safety
Power frequency
withstand
voltage
AC2kV 1 min between power supply // current input//voltage input and
communication
AC2kV 1 min between each pair of combinations among power supply,
urrent input and voltage input.

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Insulating
resistor
Input,output terminal to housing >100MΩ
Environment
Working temperature: -10℃～+55℃;storage temperature: -20℃～
+70℃
Relative humidity:5%～95%，non-condensing; altitude:≤2500m
5．Installation
5.1 Overall and Installation Dimensions (Unit: mm)
5.2 Open Current Transformer’s Dimension (Unit: mm)
Φ10mm Φ16mm
Φ24mm Φ36mm

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RS485
5.3 Installation Method
电流方向
负极（黑）
正极（白）
按箭头方向闭合
Installation Method of the Open Current Transformer Close
按箭头方向闭合 Close according to the arrow direction
正极（白） Positive (White)
负极（黑） Negative (Black)
电流方向 Current direction
5.4 Connection Mode
(Note: The connection diagram on the instrument housing shall prevail in case of any
discrepancies with it)
L
N
UAUNIA
*IA
FUSE
单相1CT
L
N
UAUN
单相1PT、1CT
FUSE
IA
*IA
S1 S2S1 S2
**
* *
5 61 4 5 61 4
Single-phase 1CT Single-phase 1PT, 1CT RS485 communication
注：接线图中保险丝推荐使用 0.5A 或者 3A；
It is recommended to use 0.5A or 3A for the fuse in the connection diagram;
RS485 communication terminal connection can use either RJ45 female or normal
connector.
21 22
A
RS485通讯
B

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FN Set
Run
Acrel
ACR10R
R_P
键
6．Programming and Use
6.1 Panel Description
6.2 Button Function Description
仪表五个按键从左到右依次为 FN 键、SET 键、 、 、回车键。
The five buttons of the instrument are FN button, SET button,,,Enter button from left to right.
FN button The button function is not yet available.
SET button
In the measurement mode, press this button to enter the programming mode.
The instrument will indicate entering password. When the correct password
is entered, you can set the programming for the instrument; in the programming
mode, use it to return to the previous menu
熄灭 常亮 闪烁
Run （绿色） 仪表未运行 / 仪表正常运行
Com （红色） 仪表未通讯 / 处于通讯状态
R-P（红色） 功率为正 功率为负 /
— （红色） / 负值指示灯 /
Off On Flashing
Run (Green) The
instrument is
not running
/ The
instrument is
running
normally
Com (Red) The
instrument is
not
communicating
/ The
instrument is
in
communication
status.
R-P (Red) Positive
power
Negative
power
/
— (Red) / Negative
value
indicator
lamp
/

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键In the measurement mode, it is used to switch display items;
In the programming mode, it is used to switch menus of the same level or
reduce the units.
键
In the measurement mode, it can be used to see relevant parameters. For
details, see the display menu;
In the programming mode, it is used to switch menus of the same level or
increase the units.
Enter
button In the programming mode, it is used to confirm the items selected form the menu
and the modification of parameters.
button+Enter
button
In the programming mode, the combination is used to reduce hundreds
button+Enter
button
In the programming mode, the combination is used to increase
hundreds
6.3 Operation Instructions
电压 无功功率
按 键
容性无功电能
电流 频率
功率因数
有功功率
视在功率 吸收有功电能
开关量状态
按 键
按 键
按 键
按 键 按 键
按 键按 键
开关量输入
开关量输出
按 键 按 键
按 键 循环显示
释放有功电能
感性无功电能
按 键 按 键
电压 Voltage
电流 Current
频率 Frequency
有功功率 Active power
无功功率 Reactive power

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视在功率 Apparent power
功率因素 Power factor
吸收有功电能 Absorb active energy
感性无功电能 Inductive reactive energy
开关量状态 Switch status
开关量输入 Switch input
开关量输出 Switch output
释放有功电能 Release active energy
容性无功电能 Capacitive reactive energy
按 键 Press button
6.4Programming Menu
6.4.1 General Programming Menu
1st level menu 2nd level menu 3rd level menu Description
Selection for start-up
picture without auto page
turning
0-9999
Password setting
(initial password 0001)
OK is displayed when energy cleared
off
Abnormal data statistics
1P2L,3P3L、3P4L
Connection mode(single-phase,
three-phase three-wire, three-
phase four-wire)
100、400 Input voltage range
10,20,40,80,120,200,3
00 等（详细见产品规格）
10,20,40,80,120,200,3
00etc.(For details,
please see product
Input current scope (not for
user operation)

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specifications)
0-9999 Voltage multiplier
0-9999 Current multiplier
1-247 Communication address
4800、9600、19200、38400
Communication baul
rate
None/2bit/odd/even
Communication mode
(no parity, 2 stop bit, odd
parity, even parity)
Switch output setting
(see 6.4.2)
Switch input
setting
6.4.2Additional Menu with Switch Output
The switch output of the instrument adopts relay output with two control mode: 1. alarm mode(“SEL”
is not zero);2. bus control mode (“SEL”is selected as “0. do” and level output for zero “dLy”.
When “dLy” is not zero, it is automatically cut off after do action in the set delay time. )
Set Do output type in the “SEL”. “0. do” usually refers to communication control (if “dLy”
is set to 0, the output is level or pulse. If dly is set to 2, the circuit will be off after closing
for two seconds) Others are alarm control (see list below).
“dLy”refers to alarm delay (which is not recommended to set as 0 to prevent disturbance or mistake.
Pulse or level output control for Do output type)
“bAnd”

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“bAnd” refers to setting of the non-action band
“AL.Hi” refers to the setting of high alarm humber (no need to set the max.
9999)
“AL.Lo” refers to the setting of low alarm number (no need to set the min. -9999)
(The above three settings correspond to the energy display which contains decimal point. Eg.input
220V 100A/5A, three-phase four-wire, the calculation of 100% P total is 220*100*3=66kW. If high alarm
for 100% power, return for 90% power, the “AL.Hi” can be set to 66.00, the “bAnd” to 6.00. If high
alarm for 100% voltage, return for 95% voltage, the “AL.Hi” can be set to 220.0, the “bAnd” to
11.0. If high alarm for 100% current, return for 95% current, the “AL.Hi” can be set to 100.0, the
“bAnd” to 5.0)
“In.=0”refers to whether low alarm is allowed if the signal is 0. Lo. on enable it and Lo.of
disable it.
三相 Three-phase
01 02 03 04 05 06 07
U I P Q S PF F
单相 Single-phase
01 02 03 04 05 06 07 08
UA UB UC 三相相电压最值
Max/min value of
three-phase phase
voltage
UAB UBC UCA 三相线电压最值
Max/min value of
three-phase linevoltage
09 10 11 12 13 14 15 16
IA IB IC 三相电流最值
Max/min value of
three-phase current
PA PB PC P 总
P total
17 18 19 20 21 22 23 24
QA QB QC Q 总
Q total
SA SB SC S 总
S total
25 26 27 28 29 30 31
PFA PFB PFC PF F 电压不平衡
Unbalanced voltage
电流不平衡
Unbalanced current

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Note: 1. Max/min value of three-phase ....refers to:maximum value for three-phase high alarm,
minimum value for three-phase low alarm.
The second channel DO can set a“32.FL” combined alarm function. After setting, the 2nd level menu
will become “SEL”(Function Selection), “dLy”(Delay), “H-U”(Overvoltage), “L-U”(Undervoltage),
“H-F”(Overfrequency), “L-F”(Underfrequency), “H-P”(Overpower), “L-P”(Underpower), “H-
I” (Overcurrent), “L-PF”(Underpower Factor), “H-b.U”（Unbalanced Overvoltage. Missing phase for
-1 setting. The judgement conditions are at least one phase>0.2Ie, one phase<0.01Ie)
3. Unbalance calculation
(Difference between the max.mean deviation and the mean value)/mean value*100%. If the mean value
in the denomintor is less than the rated value, the denomintor will be the rated value.
Rated voltage value Ue: three-phase four-wire Ue is phase voltage. The 400V instrument set in
the
menu is 220V*PT, and 100V instrument is 57V*PT.
Rated current value Ie: 5A*CT for 5A instrument, 1A*CT for 1A
instrument.
The parameter setting for the unblance is in the percentage form, such as 20 refers to 20%.
6.5 Programming Examples
This section introduces some option change in the programming menu in the form of work flow
chart, such as the current multiplier, transformer setting.
Note: When the setting or selection is done, the Enter button must be pressed to confirm it.
After the confirmation is complete, continuously press the SET button until the SAVE/YES page
appears. At this time, the Enter button must be pressed at this time or the setting will not be
valid.

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Press the left or right button
Press the left or right button
Measuring
Status
Press the SET button
6.5.1 How to Change Current Multiplier (CT Transformation Ratio)
Press the Enter button
Press the left or right button to change passsword. When the password is corrrect, press
the Enter button.
Press the Enter button
Press the Enter button
Press the left or right button to change setting, then press
the Enter button to confirm it.

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6.5.2 Programming Cases
正常模式
Normal mode
PASS
buS
Addr bAUD mode
0001-0247 4800-38400 None 2bit odd even
ln
In.CT Line
0001-9999
In.PT
0001-9999
In.U In.I
1P2L 3P3L 3P4L 100 400 xxxx
SYS
Code DISP
0001-9999 0001-0006
Clr.E
按回车键清零；
按SET健退出
PASS
XXXX
密码正确？ Correct password?
SAVE YES
按回车键保存退出按;
SET键不保存退出
Press ENTER key,save and exit; Press SET key,do not save and exit
按回车/SET键
Press ENTER/SET key
按回车键
Press
ENTER key
NO
YES
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
按回车/SET键
Press ENTER
/SET key
Press ENTER key,
electric energy clear
Press SET key and exit
按上/右键
Press up/right key
按SET键
Press SET key
按上/右键
Press up/right key
按上/右键
Press up/right key

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7．Communication Connection
The instrument provides asynchronous half-duplex RS485 communication interface wich
adopts MODBUS-RTU protocol so all kinds of data can be transmitted on the communication line.
Theoretically, one communication line can be connected with up to 128 instruments, each of which can
set a communication address (Addr) and communication rate (baud) via setting.
For the communication connection, we recommend to use the three-core shielding wire .The core
wires are connected to A,B,COM2 respectively and the shielding layer is connected to the ground.
COM2 is forbidden to have ground connection. When laying the wires, the communication line shall be
kept away from the strong current cable or other strong electric field.
It is recommended to add a matching resistor between A and B of the end instruments. The
resistance range is 120Ω～10kΩ.
See 7.6 for specific connection case.
7.1 Transmitting Method
The information transmission is asynchronous and in bytes. The communication message
tranmitted from the master to the slave is in 10-bit format including 1 start bit,8 data bit(LSB first
delivered),no parity bit, one stop bit. If parity bit or 2 stop bit is et, the format is 11-bit.
7.2 nformation Frame Format
地址码
Address code
功能码
Function code
数据区
Data zone
CRC 效验码
CRC check code
1 字节
1 byte
1 字节
1 byte
n 字节
n byte(s)
2 字节
2 bytes
Address code: the address code is in the beginning of the frame, which is composed of a byte
(8 bit binary code)representing 0~255 in decimal system. The PZ instrument only uses 1～247 and
keeps other addresses. The bits indicate the address of the terminal device designated by the user. The
device

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will receive the data from the linked master. The address of every terminal device must be unique.
Only the end addressed will correspond to the query containing its address. When the terminal sends
back a response, the responding slave address will tell the master which terminal is communicating
with it.
Function code: the function code tells the addressed termnial to carry out which functions. The
table below lists up the function codes used by this instrument as well as their meanings and
funcitons.
Function Definition Operation
03H/04H
Data
reading
register
Obtaining the current binary value of one or more
registers.
10H
Preset
multi-register Set the binary value into a series of
multi-register
Data zone: the data zone contains the data needed for carrying out certain functions or collected
when the terminal responds to the query. The content of the data may be number, reference address or
set value. For example: if the function code tells the terminal to read a register,the data zone needs
to specifiy which register to start with and how much data to be read. The embedded address and data
will vary with types and different content of the slaves.
CRC check code:CRC field occupies two bytes including one 16-bit binary value. The CRC value is
calculated by the transmitting devicie then added to the data frame. The receiving device will
recalculate the CRC value upon receiving the data then compare it with the received value in the CRC
field. If the two values are not identical, there is an error.
The procedure to generate a CRC
Preset a 16-bit register as 0FFFFH (full 1), which is called CRC
register.
b、
Make XOR calculation with 8 bit of the first byte in the data frame and the lower byte in the CRC
register and store the result into the CRC register.
c,
Shift the CRC register right a bit and fill the MSB with 0 and take out the LSB for checking.
d

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If the LSB is 0, repeat step 3 (one more shift); if the LSB is 1, m,ake XOR calculation with
CRC register and preset fixed value (0A001H).
e、
Repeat step three and step four until the 8th shift. The entire 8 bit processing is complete in
this way.
f、
Repeat step two to five to process the next 8 bits until all bytes are
processed. g、
Finally, the CRC register value becomes the CRC value.
Besides, there is also a wayt to calculate CRC using the preset table. It is characterized by
rapid calculation speed. However, the table needs relatively large storage room. We will not
introduce it here, please refer to relevant materials.
7.3 Function Code Introduction
7.3.1 Function Code 03H or 04H: Reading Register
The function allows the user to obtain the data collected and recorded by the device and
system parameters. The data number requested by the master computer for one time has no limitation
but cannot exceed the defined address range.
The following examples are 3 basic data read from 01 slave computer (every address in the
data frame takes up 2 bytes):UAB, UBC, UCA. Among them, UAB’s address is 0028H, UBC’s address
is 0029H and UCA’s address is 002AH.
Sent by master Sent
message Feedback by slave Feedback
message
Address code 01H Address code 01H
Function code 03H Function code 03H
Start
address
UB 00H Bytes 06H
LB 28H Register data UB Undefined
Number of
registers
UB 00H LB Undefined
LB 03H Register
data
UB Undefined
CRC LB 85H LB

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CRC check code Undefined
UB C3H Register
data
UB Undefined
LB Undefined
Register
data
LB Undefined
UB Undefined
7.3.2 Function Code 10H: Writing Register
The function code 10H allows the user to change the contents of multiple registers. The
function code can be used to write the system parameters and switch output status. The master
computer can write a maximum of 16 pieces of data (32 bytes) at once.
The following example shows than when the preset address is 01, the switch output is Do1. The
switch input/output status indication register’s address is 0022H. The 9-12 bit corresponds to DI1-
DI4, the 13-14 bit corresponds to D01-D02 respectively.
Sent by master Sent message Feedback by slave Feedback
message
Address code 01H Address code 01H
Function code 10H Function code 10H
Start
address
UB 00H Start
address
UB 00H
LB 22H LB 22H
Register number UB 00H Register number UB 00H
LB 01H LB 01H
Byte number 02H CRC 校验码
CRC check code
LB A1H
0022H data to be written
UB 10H UB C3H
LB 00H
CRC check
code
LB ADH
UB 12H
7.4Communication Application Details
The instrument design has a uniform planning for the communication address list. The user can easily
realize the functions of remote measurement, remote signalling and remote control according to the
following introduction.
7.4.1 Switch Input and Output