Acrel AMC Series Owner's manual

238
AMC Series programmable intelligent meters
------Single phase meters
（AI、AV、E、DI、DV）
Installation and Operation Instruction V1.3
ACREL CO.,LCD

DECLARATION
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any
form by any means, electronic, mechanical photocopying, recording, or otherwise without prior
permission of Acrel. All rights reserved.

Contents
1. General....................................................................................................................................................................1
2. Product model specifications...................................................................................................................................1
3. Technical parameter ................................................................................................................................................2
4. Installation guide.....................................................................................................................................................3
4.1 Outline and mounting cut out size............................................................................................................3
4.2 Schematic diagram of meter and its cut out .............................................................................................3
4.3 Schematic diagram of installation............................................................................................................3
4.4 Installation instruction..............................................................................................................................3
4.5 Terminal and connection..........................................................................................................................3
4.6 Notice.......................................................................................................................................................5
5. Operating instruction...............................................................................................................................................6
5.1 Press - key ................................................................................................................................................6
5.2 Menu symbol and its meaning..................................................................................................................6
5.3 Program flow (This flow take LED display as example, LCD display is similar)...................................8
5.4 Function setting and using......................................................................................................................12
5.5 Look over measuring data......................................................................................................................14
6. Communication guide ...........................................................................................................................................15
6.1 General...................................................................................................................................................15
6.2 Protocol..................................................................................................................................................15
6.3 Method to create error check code (CRC)..............................................................................................16
6.4 Single-phase meter communication parameter address table (Word)....................................................17
6.5 Communication application ...................................................................................................................18

1
1. General
AMC Series programmable intelligent single phase meters, adopting AC sampling technology, can measure electric energy, power,
voltage, current and frequency of single-phase or three-phase grid directly or indirectly. It can be used for local display, and connecting
industrial control device to form measurement and control system.
Meters have RS-485 communication interface, adopting compatible Modbus-RTU protocol, can bring analog output, relay alarm
output and switch input, switch output. According to different requests, ratio, alarm, communication etc. can be set and controlled by
pressing related keys on instrument panel.
2. Product model specifications
Type
Functions
Shape
Optional functions
AMC48-AI
AMC48-AV
Single phase current, voltage measurement,
LED digital display
48 Square
1、1 channel RS485 communication (/C )
2、1 channel analog output (/M )
AMC48L-AI
AMC48L-AV
Single phase current, voltage measurement,
LCD liquid crystal display
AMC72-AI
AMC72-AV
AMC72-E
Single phase current, voltage, electric
energy measurement,
LED digital display
72 Square
1、1 channel RS485 communication (/C )
2、1 channel analog output (/M )
3、1 channel alarm（/J）
4、Analog output + RS485
communication( /MC )
5、RS485
communication+switching2DI(/KC )
6、RS485 communication +
switching2DI2DO
(/KC )
7、1 channel alarm+1 channel analog output
+RS485 communication( /JMC )
AMC72-DI
AMC72-DV
DC current,voltage measurement，
LED digital display
AMC72L-AI
AMC72L-AV
AMC72L-E
Single phase current, voltage, electric
energy measurement,
LCD liquid crystal display
AMC72L-DI
AMC72L-DV
DC current,voltage measurement，
LCD liquid crystal display
AMC96-AI
AMC96-AV
Single phase current, voltage,
measurement,
LED liquid crystal display
96 Square
1、1 channel RS485 communication (/C )
2、1 channel analog output ( /M )
3、1 channel alarm（/J）
4、Analog output + RS485
communication(/MC)
5、RS485 communication +
switching4DI2DO
(/KC )
6、1 channel alarm+1 channel analog output
+RS485 communication( /JMC )
AMC96L-AI
AMC96L-AV
Single phase current, voltage,
measurement,
LCD liquid crystal display
/J is 1 channel relay output (multiplexing with second channel switching output), please consult our company for
special requests.

2
3. Technical parameter
Technical parameter
Value
Input
Nominal value
AC voltage: AC 100V, 220V, 380V; AC current: AC1A, 5A
Consult special specification in advance
DC voltage:1000V、300V；DC current:75mV、10V、0-20mA、4-20mA、5A，10A；
Consult special specification in advance
Over load
Voltage: 1.2 times continuous, 2 times continuous 1 second; Current: 1.2 times
continuous, 10 times continuous 1 second
Frequency
45~65Hz
Power consumption
Power consumption of each voltage, current Input circuit is less than 0.5VA
Accuracy class
Frequency 0.05Hz,other 0.5 class
Function
Display
LED or LCD display
Communication
RS485, Modbus-RTU compatible protocol
Alarm
1 channel passive relay ,1A/30VDC, 1A/250VAC
Analog
DC4~20mA,DC0~20mA( load<500Ω，DC0~5V（load>1kΩ）etc.
Pulse
Output mode：photocoupler pulse with 1 channel collector open circuit
Pulse constant: 15000 imp/kWh
Switching
Input
Dry contact Input, built-in power supply ; optoisolator
Output
2 channel switching output, NO relay contact,
AC capacity: 1A/30VDC, 1A/250VAC
DC capacity: 2A/30VDC, 2A/250VAC
Power
supply
Voltage range
AC220V±10%
Power consumption
<5VA
Insulation resistance
≥100MΩ
Power frequency
withstand voltage
Between power supply set of terminals and signal Input, output set of terminals
2kV/1min (RMS)
Mean time between failures
≥50000h
Environment
Temperature
Operation: -10 ºC~+55 ºC
Storage: -25 ºC ~+70 ºC
Humidity
≤93%RH, no condensation, without corrosive gas
Altitude
≤2500m

3
4. Installation guide
4.1 Outline and mounting cut out size
Shape
Panel
Housing
Cut out
Unit：mm
Width
Height
Width
Height
Depth
Width
Height
48 Square
48
48
44
44
100
45
45
72 Square
75
75
66
66
98
67
67
96 Square
96
96
86
86
92
88
88
4.2 Schematic diagram of meter and its cut out
4.3 Schematic diagram of installation
4.4 Installation instruction
When meter is installing, embedded meter into mounting hole, restore fixed support, tighten screw, fix meter firmly. 48 shape is the
card reed extrusion installion.
4.5 Terminal and connection
4.5.1 Auxiliary power and signal input terminal

4
AC series
L
N
IA
*IA
电流输入
Currentinput
S1 S2
*
*
L N
FUSE
辅助电源
Auxiliarypower
L
N
1 2 4 5
L
N
UAUN
FUSE
1114
电压输入
Voltageinput
A
N
UAUNIA
*IA
FUSE
电能表接线
Electricenergymeter
S1 S2
*
*
4 51114
DC series
4.5.2 Additional function terminal
24 25 28
DI1 DI2 COM3
24 25
DI1 DI2 COM3
26 27 28
DI3 DI4
21 22
AB
17 18
E+ E-
34 35 36 37
DO1 DO2/J
55 56
A01
57 59
A02 A03 COM1
+ + +
模拟量输出
55
A0
59
COM1
+
模拟量输出 开关量输出 开关量输入 RS485通讯 脉冲
-
Analog output Analog output Switching output Switching input
Note：
1.The symbol “*”indicates current input terminal, this wiring is for reference only , the specific wiring diagram on the meter
prevail.
2. Alarm output relay duplex with switching output D02.
RS485
Communication
Electric
energy pulse
+
-
U+U-
FUSE
4 9
电压(1000V)输入
Voltage(1000V)input
+
-
I+I-
电流(75mV)输入
Current(75mV)input
7 9
75mV分流器 去负载
L N
FUSE
辅助电源
Auxiliary power
L
N
1 2
+
-
U+U-
FUSE
5 9
电压(300V)输入
Voltage(300V)input
+
-
U+U-
6 9
电压(10V)输入
Voltage(10V)input
+
-
I+I-
电流(10A/20mA)输入
Current(10A/20mA)input
8 9

5
4.6 Notice
4.6.1 Voltage Input
The input voltage must not be higher than the rated input voltage of the product, otherwise PT should be considered.
A 1A fuse must be installed on the voltage input.
4.6.2 Current Input
Current input should use external CT.
If there are other meters on the CT, the wiring used in series.
It is recommended to use wiring board, do not connected with CT directly, in order to disassembly.
Before removing product‘s current Input connection, be sure to disconnect the CT primary circuit or short the secondary circuit.
4.6.3 Adding function connection
COM of analog output and switching Input represent their own common, the common port is not earthing actually.
This meter provides asynchronism half duplex RS485 Communication interface, adopting MODBUS-RTU protocol, various data
information may be transmitted on the Communication line. Theoretically, on the same line, meters up to 128 may be connected at the
same time, each meter can set up its Communication address (Addr.), Communication rate (baud) may be selected.
Two-core shield cable is recommended for communication connection. Its wire diameter is not less than 0.5mm2, connecting, AlBl
shielded layer single point to connect the earth or dangling, when wiring, the Communication line shall be far away from strong Current
cable and other strong electric field environment.
Four connection modes in communication section are shown as following:

6
Recommendation of adding matched resistance between A,B of the last meter, the rated resistance range is 120Ω~10kΩ
5. Operating instruction
5.1 Press - key
SET key -- Function switching or Return to previous menu; normal display, switching between read only menu and programming menu.
Left shift key -- Same level menu shifting left or reducing data.
Right shift key -- Same level menu shifting right or increasing data；in normal condition, pressing this key, display alarm information.
ENTER key -- Enter next level menu or confirm; in normal condition, pressing this key, Enter DI/DO Indication and control page.
5.2 Menu symbol and its meaning
5.2.1 AMC72 Series meters
Category
Symbol
Meaning
Range
Main menu.
rEAd
Read-only menu
Shortening: rd
Prog
Programming menu
Shortening: Pg
Transformation ratio
(multiplying power)
Pt(Ct)
Voltage(current) transformation ratio
0001～9999
DC meter display
setting
H
Full display
-9999～9999
L
Zero display
-9999～9999
A.P(U.P)
Display value decimal point
0～3
Z
Zero mask value
-9999～9999
TYP
display
A～Z or none
Communication
Add
Communication Address
1～247
C
Communication baud rate (kbps)
1.2、2.4、4.8、9.6 etc.
Initial menu
Pg
Power on Initial menu
shortening ;display U 、A、P etc.
LCD backlight
LCD
Backlight delay time (s)
1 -250, 0 is lighting LED This is invalid
Alarm setting
U.H
Voltage too high alarm setting
0-150% (150%: closed)
U.L
Voltage too low alarm setting
0-100% (0%: closed)

7
A.H
Current too high alarm setting
0-150% (0%: closed)
A.L
Current too low alarm setting
0-100% (0%: closed)
H.L
Power factor too low Alarm setting
0.0-1.0 (0.00 closed)
F.H
frequency too high alarm setting
9.99～99.99（99.99 closed）
F.L
frequency too low alarm setting
9.99～99.99（99.99 closed）
AL.b
Hysteresis setting
0-99．9%
AL.t
Alarm delay time (s)
1.0-20.0（resolution 0.1s）
Relay
(DO output)
do1.t
Relay 1 closing duration (s)
0.0-20.0 (resolution 0.1s)
do2.t
Relay 2 closing duration (s)
0 indicate relay is in keeping mode
do2.U
Usage of relay 2
io: used for switching (K);
AL: used for alarm output (J)
Analog
o.L
Analog lower limit setting
0-100%
(Except frequency、DC meter)
o.H
Analog upper limit setting
0-120%
(Except frequency、DC meter)
o.U
Analog output selection
U、A、P etc.
Energy
CLr.E
Energy is removed
EP.EqE
Display of energy
Measuring
range
SP.U
SP.A
Rated input voltage
Rated input current
Voltage: AC100, 220, 380V etc.
Current: AC1A, 5A etc.
Password
PS
Protective password programming
0000-9999
Save
SAVE
Save?
save press “Enter”
Note: 1. The alarm menu of the single-phase current,voltage table of the ordinary 72 meter is slightly different from the upper
one ,it does not distinguish between current, voltage signal, said only the value of high and low, high alarm, low alarm, alarm delay.
2. The parameter setting process is shown in the 5.3.4 Prog menu.
3. The percentage is relative to the rated measurement signal. The alarm value is a primary value for AMCxx-F.
5.2.2 AMC48 (96)系列仪表 AMC48 (96) Series meters
Category
Symbol
Meaning
Range
Main menu.
rEAd
Read-only menu
Prog
Programming menu
Transformation ratio
(multiplying power)
Pt(Ct)
Voltage(current) transformation
ratio
0001～9999
Communication
Add
Communication Address
1～247
Baud
Communication baud rate (kbps)
1.2、2.4、4.8、9.6 etc.
LCD backlight
LCD
Backlight delay time (s)
1 -250, 0 is lighting LED This is invalid
Alarm setting
AL、Hi
HIGH alarm setting
0-150% (150%: closed)
AL、Lo
LOW alarm setting
0-100% (0%: closed)
AL、-t
Alarm delay time (s)
01.0-20.0 (resolution 0.1s)
Relay
do1.t
Relay 1 closing duration (s)
0.0-20.0 (resolution 0.1s)