Autometers Systems A-400, A-400M, A-400MT, A-400MB, A-400P Programming And Installation Brochure
A-400 Manual
Programming and installation Brochure for A-400P, A-400M, A-400MB & A-400MT
MID Approved (SGS.UK) Appendix B and D
Measures kWh, KVArh, KVar,PF,Hz, Max demand
RS 485 Modbus (Autometers V6 protocol)
Two Pulse Outputs
BI- Directional Measurement for Import and Export
Back light LCD for full viewing Angles
Available as 1 Phase 2 Wire, 3 Phase 3 Wire and 3 Phase 4 Wire
Introduction
This document provides operating,
maintenance and installation
instructions.These units measure and
display the characteristics of single phase
two wires (1p2w),three phase three wires
(3p3w) and three phase four wires
(3p4w) networks.The measuring
parameters include voltage (V),
frequency (Hz),current (A),power
(kW/kVa/kVar),import, export and total
Energy (kWh/kVarh).The units can also
measure Maximum demand current and
power, this is measured over preset
periods of up to 60 minutes.
The A-400 range of meters are 100 amp
maximum direct connected meters and
can be supplied in two versions, with the
mains supply entering at the top of the
meter or the mains supply entering at
the bottom of the meter.
The meters can also be supplied with
different communication outputs
Modbus RS 485, MBus or two individual
Pulse outputs one programmable.
Declaration of
Conformity
We, Autometers Systems Ltd, 4B Albany
Road, Manchester, M21 0AW, UK ensure
and declare that apparatus: Energy Meter:
A-400P, A-400M, A-400MB,A-400MT with
the measurement range 3x230/400V
0,25~5(45) A 50Hz are in conformity with
the type as described in the EU-type
examination certificate 0120/SGS0350 with
Serial number in format of XXXXXXXX, Batch
format: xxxxxx and satisfy the appropriate
requirements of the Directive 2014/32/EU
with the following standards: EN 50470-1:
2006, Electricity metering equipment (AC)
Part 1: General requirements, tests and test
conditions. Metering equipment (class
indexes A, B and C) and EN 50470-3: 2006,
Electricity metering equipment (AC) Part 3:
Particular requirements - Static meters for
active energy (class indexes A, B and C)
1
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1. Unit Characteristics
1.1 Unit Characteristics:
The A-400 series meters have four models: A-400M, A-400MT, A-400MB, A-400P
Model
A-400P
A-400M
A-400MB
A-400MT
Two pulse output indicate real-time energy measurement. An RS485/Mbus output allows remote
monitoring from another display or a computer.
Measurement
kWh/kVarh,kW/kVar,kVA, P,F,PF,dmd, V,A, TH D,etc.
kWh/kVarh,kW/k.Var,kVA, P,F,PF,dmd, V,A, TH D,etc.
kWh/kVarh,kW/kVaAr,kVA, P,F,PF,dmd, V,A, TH D,etc.
kWh/kVarh,kW/kVar,kVA, P,F,PF,dmd,V,A,THD,etc.
Output
pulse
pulse/Modbus
pulse/Mbus
pulse/Modbus
Tariff
No
No
No
4 Tariffs
10 Segments
1.2 RS485 Serial-Modbus RTU
For A-400M and A-400MT only
RS485 serial port with Mod bus RTU protocol to provide a means of remotely monitoring and
controlling the Unit. Set-up screens are provided for setting up the RS485 port.
1.3 Mbus
For A-400MB only
This uses an MBus port with EN13757-3 protocol to provide a means of remotely monitoring and
controlling the Unit. screens are provided for setting up the RS485 port.
Set-up screens are provided for setting up the M Bus port.
1.4 Pulse output
Two pulse outputs that pulse measured active and reactive energy.The constant of pulse output
2 for active energy is 400imp/kWh (unconfigurable),its width is fixed at 100ms. The default
constant of configurable pulse output 1 is 400imp/kWh,default pulse width is 100ms.The
configurable pulse output 1 can be set from the set-up menu.
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2
2．Start up screens
V/A
ESC
PF/HZ
P
The first screen
lights all LED
segments and can
be used as a
display LED check
The second screen
indicates the
software version of
the unit.
(the above picture is
just for reference)
3. Keys and Displays
3.1 Button Functions
Button
Click
Selects the Voltage and Current display screens.
In Set-up Mode, this is the “Left” or “Back” button.
The unit performs a
self-test and the
screen indicates if
the test is passed.
After a short delay,
the screen will
display active
energy
measurements.
MD/
E
Select the Frequency and Power factor display screens.
In Set-up Mode, this is the “Up” button.
Select the Power display screens.
In Set-up Mode, this is the “Down” button.
Select the Energy display screens.
In Set-up mode, this is the “Enter” or “Right” button.
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3.2 Voltage and Current
V/A
ESC
PF/HZ
P
Each successive press of the button selects a new parameter:
Phase to neutral voltages.
Current on each phase.
Phase to neutral voltage THD% of 2nd to 19th.
Each phase Current THD% of 2nd to 19th.
3.3 Frequency and Power Factor and Demand
Each successive press of the button selects a new range:
MD/
Frequency and Power Factor (total).
Power Factor of each phase.
Maximum Current Demand.
Maximum Power Demand.
3.4 Power
Each successive press of the button selects a new range:
Instantaneous Active Power in kW.
Instantaneous Reactive Power in kVAr.
Instantaneous Volt-Amps in KVA.
Total kW, kVArh, kVA.
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3.5 Energy Measurements
Each successive press of the button selects a new range:
Imported active energy in kWh.
Exported active energy in kWh.
Tariff 1 active energy
Tariff 2 active energy
Tariff 3 active energy
Tariff 4 active energy
*For A-400MT only
Total active energy in kWh.
Imported reactive energy in kVArh.
E
Exported reactive energy in kVArh.
Tariff 1 reactive energy
Tariff 2 reactive energy
Tariff 3 reactive energy
Tariff 4 reactive energy
*For A-400MT only
Total reactive energy in kVArh.
date
Year/month/day.
1st,Jan,2000 (default)
*For A-400MT only
Time
Hour/minute/second
Example:00:02: 16
*For A-400MT only
*The parameters of date and time can only be set via RS485 communication.
5
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4. Set Up
V/A
ESC
V/A
ESC
V/A
ESC
V/A
ESC
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
To enter set-up mode, press the button for 3 seconds until the password screen appears.
Setting up is password-protected so you must enter the correct password
(default ‘1000’) before processing.
If an incorrect password is entered, the display will show:
PASS Err
To exit set-up mode, press the button repeatedly until the measurement screen is restored.
4.1 Set-up Entry Methods
Some menu items, such as password and CT, require a four-digit number entry while
others, such as supply system, require selection from a number of menu options.
4.1.1 Menu Option Selection
Use the and buttons to scroll through the different options of the set-up menu.
Press to confirm your selection.
If an item flashes, then it can be adjusted by the and buttons.
Having selected an option from the current layer, press to confirm your selection. The
MD/
E
E
MD/
E
SET indicator will appear.
Having completed a parameter setting, press to return to a higher menu level. The
SET indicator will be removed and you will be able to use the and buttons for
MD/
further menu selection.
On completion of all setting-up, press repeatedly until the measurement screen is
restored.
4.1.2 Number Entry Procedure
When Setting up the unit, some screens require the entering of a number. In particular,
on entry to the setting up section, a password must be entered. Digits are set individually,
from left to right. The procedure is as follows:
The current digit to be set flashes and is set using the and buttons.
Press to confirm each digit setting. The SET indicator appears after the last digit has
E
been set.
After setting the last digit, press to exit the number setting routine. The SET indicator
will be removed.
MD/
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6
4.2 Change Password
V/A
ESC
V/A
ESC
V/A
ESC
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
MD/
Use and to choose the change password option.
Press the button to enter the change password routine. The new
E
password screen will appear with the first digit flashing.
MD/
Use and to set the first digit and press to confirm your
E
selection. The next digit will flash.
Repeat the procedure for the remaining three digits.
After setting the last digit SET will show.
Press to exit the number setting routine and return to the set-up
menu. SET will be removed.
4.3 DIT Demand Integration Time
This sets the period in minutes over which the current and power readings are integrated
for maximum demand measurement. The options are: 0, 5, 8,10,15, 20, 30, 60 minutes.
From the set-up menu, use and buttons to select the DIT
option. The screen will show the currently selected integration time.
MD/
Press to enter the selection routine. The current time interval will
E
flash.
MD/
Use and buttons to select the time required.
Press to confirm the selection. SET indicator will appear.
E
Press to exit the DIT selection routine and return to the menu.
4.4 Backlit set-up
The meter provides a function to set the blue backlit lasting time (0/5/10/30/60/120 minutes).
Option 0 means the backlit always on here.
Default:60
If it’s set to 5,the backlit will be off in 5minutes.
Use and buttons to choose the time
Press to confirm the setting and press to return to the main set
up menu.
MD/
E
7
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4.5 Supply System
V/A
ESC
V/A
ESC
V/A
ESC
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
The unit has a default setting of 3Phase 4wire (3P4). Use this section to set the type of
electrical system.
From the set-up menu, use and buttons to select the system
option. The screen will show the currently selected power supply.
MD/
Press to enter the selection routine. The current selection will flash.
Use and buttons to select the required system option:
E
MD/
1P2(W),3P3(W) ,3P4(W).
Press to confirm the selection. SET indicator will appear.
E
Press to exit the system selection routine and return to the menu.
SET will disappear and you will be returned to the main set-up Menu.
4.6 Pulse Output
This option allows you to configure the pulse output. The output can be set to provide a
pulse for a defined amount of energy active or reactive. Use this section to set up the
pulse output—Units: kWh, kVArh
From the set-up menu, use and buttons to select the Pulse
Output option.
Press to enter the selection routine. The unit symbol will flash.
E
MD/
MD/
Use and buttons to choose kWh or kVArh.
On completion of the entry procedure, press to confirm the setting
E
and press to return to the main set up menu.
4.6.1 Pulse Rate
Use this to set the energy represented by each pulse. Rate can be set to 1 pulse per
0.01kWh / 0.1kWh / 1kWh / 10kWh / 100kWh.
(It shows 1 impulse = 10kWh/kVArh)
From the set-up menu, use and buttons to select the Pulse
Rate option.
Press to enter the selection routine. The current setting will flash.
E
0.01/0.1/1/10/100kWh/kVArh per pulse.
MD/
Use and buttons to choose pulse rate. On completion of the
entry procedure, press to confirm the setting and press to
return to the main set up menu.
MD/
E
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8
4.6.2 Pulse Duration
V/A
ESC
V/A
ESC
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
PF/HZ
P
The pulse width can be selected as 200 (non-MID version meters only), 100 (default) or
60ms.
(It shows pulse width of 200ms)
From the set-up menu, use and buttons to select the Pulse width
MD/
option.
Press to enter the selection routine. The current setting will flash.
Use and buttons to choose pulse rate. On completion of the
entry procedure, press to confirm the setting and press to
E
MD/
E
return to the main set up menu.
4.7 Communication
Where the meter has been supplied with a Rs 485 protocol output the individual
parameters are set by using the front key panel.
4.7.1 Modbus RS 485 Address
(The range is from 001 to 247)
From the set-up menu, use and buttons to select the address ID.
Press button to enter the selection routine. The current setting will
be flashing.
Use and buttons to choose Modbus address (001 to 247).
On completion of the entry procedure, press button to confirm the
setting and press button to return the main set-up menu.
4.7.2 Mbus address
*A-400MB only
(The range is from 001 to 247)
From the set-up menu, use and buttons to select the address ID.
Press button to enter the selection routine. The current setting will
be flashing.
MD/
E
MD/
E
MD/
E
Secondary address:
00 00 00 01 to 99 99 99 99
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4.7.3 Baud Rate
V/A
ESC
PF/HZ
P
PF/HZ
P
V/A
ESC
PF/HZ
P
PF/HZ
P
V/A
V/A
ESC
PF/HZ
P
PF/HZ
P
PF/HZ
P
From the set-up menu, use and buttons to select the Baud
Rate option.
MD/
4.7.4 Parity
Press to enter the selection routine. The current setting will flash.
Use and buttons to choose Baud rate 2.4k. 4.8k, 9.6k, 19.2k,
E
MD/
38.4k
On completion of the entry procedure, press to confirm the setting
E
and press to return to the main set up menu.
From the set-up menu, use and buttons to select the Parity
MD/
option.
Press to enter the selection routine. The current setting will flash.
Use and buttons o choose parity (EVEN / ODD / NONE
E
MD/
(default)).
On completion of the entry procedure, press to confirm the setting
E
and press to return to the main set up menu.
4.7.5 Stop Bits
From the set-up menu, use and buttons to select the stop bit
option.
Press to enter the selection routine. The current setting will flash.
Use and buttons to choose stop bit (1or 2)
E
MD/
Note: Default is 1, and only when the parity is NONE that the stop bit can
be changed to 2.
On completion of the entry procedure, press to confirm the setting
and press to return to the main set up menu.
ESC
MD/
E
4.8 Maximum demand reset
The meter provides a function to reset the maximum demand value of current and power.
MD/
Use and buttons to select the reset option.
Press to enter the selection routine. The dIt will flash
Press to confirm the setting and press to return to the main set up menu.
E
E
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10
5. Specification
5.1 Measured Parameters
The unit can monitor and display the following parameters of a single phase two wire(1p2w),
three phase three wire(3p3w) or four phase four wire(3p4w) system.
5.1.1 Voltage and Current
Phase to neutral voltages 100 to 289V a.c. (not for 3p3w supplies).
Voltages between phases 173 to 500V a.c.
Percentage total voltage harmonic distortion (THD%) for each phase to N ( not for 3p3w supplies).
Percentage voltage THD% between phases (three phase supplies only).
Current THD% for each phase
5.1.2 Power factor and Frequency and Maximum Demand
Frequency in Hz
Instantaneous power:
Power 0 to 99999 W
Reactive power 0 to 99999 VAr
Volt-amps 0 to 99999 VA
Maximum demanded power since last Demand reset Power factor
Maximum neutral demand current, since the last Demand reset (for three phase supplies only)
5.1.3 Energy Measurements
Imported/Exported active energy........
Imported/Exported reactive energy.....
Total active energy................
Total reactive energy............
0 to 9999999.9 kWh
0 to 9999999.9 kVArh
0 to 9999999.9 kWh
0 to 9999999.9 kVArh
5.2 Measured Inputs
2 Voltage inputs through 4-way fixed connector with 25mm stranded wire capacity. single phase
two wire (1 p2w), three phase three wire (3p3w) or three phase four wire (3p4w) unbalanced.
Line frequency measured from L 1 voltage or L3 voltage.
5.3 Interfaces for External Monitoring
Three interfaces are provided:
RS 485 communication channel that can be programmed for Modbus RTU protocol
Relay output indicating real-time measured energy (configurable)
Pulse output 3200imp/kWh (not configurable)
The Modbus configuration (baud rate etc.) and the pulse relay output assignments (kW/kVArh,
import/export etc.) are configured through the set-up screens.
5.3.1 Pulse Output
The pulse output can be set to generate pulses to represent kWh or kVArh.
Rate can be set to generate 1 pulse per:
0.01 = 10 Wh/VArh
0.1 = 100 Wh/VArh
1 = 1 kWh/kVArh
10 = 10 kWh/kVArh
100 = 100 kWh/kVArh
Pulse width 200/100/60 ms.
Relay Rating 240V ac 50mA
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5.3.2 RS485/Mbus Output for Modbus RTU
*For A-400MT/-M
For Modbus RTU, the following RS485 communication parameters can be configured from the
set-up menu:
Baud rate 2400, 4800, 9600, 19200, 38400
Parity none / odd / even
Stop bits 1 or 2
RS485 network address nnn - 3-digit number, 001 to 247
*For A-400MB only
For Mbus, the following communication parameters
can be configured from the set-up menu:
Baud rate 300,600,2400, 4800, 9600
Parity none/ odd / even
Stop bits 1 or 2
Mbus network primary address nnn - 3-digit number,001 to 250 Mbus network secondary
address 00 00 00 00 to 99 99 99 99
Please contact us if your require the Modbus/Mbus protocol document.
5.4 Accuracy
Voltage .......................................
Current.......................................
Frequency..................................
Power factor..............................
Active power (W).......................
Reactive power (VAr)................
Apparent power (VA)................
Active energy (Wh)....................
Reactive energy (VARh)............
THD.............................................
Response time to step input...
0.5% of range maximum
0.5% of nominal
0.2% of mid-frequncy
1% of unity (0.01)
±1% of range maximum
±1% of range maximum
±1% of range maximum
Class 1 IEC 62053-21 EN504 62053-21 70-3
±1% of range maximum
1% up to 31st harmonic
1s, typical, to >99% of final reading, at 50 Hz
5.5 Reference Conditions of Influence Quantities
Influence Quantities are variables that affect measurement errors to a minor degree. Accuracy
is verified under nominal value (within the specified tolerance) of these conditions.
Ambient temperature.......................
Input waveform.................................
Input waveform.................................
23°C ± 2°C
50 Hz(MID)
50 or 60Hz ±2%(non-MID)
Sinusoidal (distortion factor < 0.005)
5.6 Environment
Operating temperature............
Storage temperature................
Relative humidity.......................
Altitude.......................................
Warm up time............................
Vibration.....................................
Shock..........................................
* Maximum operating and storage temperatures are in the context of typical daily and
seasonal variation.
-25°C to +55°C*
-40°C to +70°C*
0 to 95%, non-condensing
Up to 3000m
1 minute
10Hz to 50Hz, IEC 60068-2-6, 2g
30g in 3 planes
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5.7 Mechanics
DIN rail dimensions..................
Mounting...................................
Sealing........................................
Material......................................
72 x 100 mm (WxH) per DIN 43880
DIN rail (DIN 43880)
Ip51 (indoor)
Self-extinguishing Ul94 V-0
6. Dimensions
The meter is a 72mm x 94.5mm panel mounted
meter with a depth of 65mm The cut out hole for
the panel meter is 72mm x 94.5mm.
WARNING
Important Safety Information is contained in sections 7-8. Familiarize yourself with this
information before attempting installation or other procedures. Symbols used in this document:
Risk of Danger: These instructions contain important safety information. Read them before
starting installation or servicing of the equipment.
Caution: Risk of Electric Shock
7. Wiring Diagrams
7.1 Communication Connections
B-
TX-A+TX+ SH - 1+
A-400M
- 2+
B-
TX-A+TX+
SH - 1+
A-400MT
- 2+
Mbus
- +
- 1+
A-400MB
- 2+
- 1+
A-400P
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- 2+
7.2 Wiring Diagrams
The A-400 can be supplied with two wiring configurations: Mains entering at the top, load at the
bottom - see fig.A; or mains entering at the bottom, load at the top - see fig.B.
Fig.A Mains at the top
MAINS
LOAD
L1 L2 L3 N
2
1
5
3 4
6
7
L1 L2 L3 N
8
L1 L2L3
2
1
6
5
L1 L2L3
3 4
7
8
3 phase 4 wire 3 phase 3 wire
L1 N
2
1
5
3 4
6
8
7
L1 N
1 phase 2 wire
Fig.B Mains at the bottom
LOAD
MAINS
L1 L2 L3 N
6
5
1
7
2
3 4
L1 L2 L3 N
L1 L2L3
8
6
5
2
1
7
3 4
8
L1 L2L3
L1 N
5 6
1
7
2
3 4
L1 N
8
3 phase 4 wire 3 phase 3 wire
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1 phase 2 wire
The Horizon Energy Monitoring System
With the New A-400 Series
RS 485 Modbus Communication to enable full data
retrieval of kWh for Graphic analysis and Billing
to the next meter
B-
TX-A+TX+
Communications shield continuous
Shield Shield
IC 1095
VOLTAGE: 3X230/400V
CURRENT: 0.25~5(6)A
FREQUENCY: 50Hz
COMMS: RS 485 Modbus RTU
BAUDRATE: 2400~38400BPS
B-
TX-A+TX+
INSTALLATION: CAT III
Communications Shield
Belden 9841 or Equal Cable Screened
Twisted pair with full Coax shielding
for RS 485 Modbus connection.
Red..…TX+ , Black…TX- , Green…Shield
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Autometers Systems Ltd.
4B Albany Road, Chorlton-cum-Hardy
Manchester M21 0AW
Email: sales@autometers.co.uk
Phone: 00(44) 0161 861 9056
Fax: 0161 881 3745
www.autometers.co.uk
Ref. A-400 Series.27.06.2018
Product development is continuous and Autometers
Systems Limited reserves the right to make alterations and
manufacture without notice. Products as delivered may
therefor differ from the descriptions and illustrations in this
publication
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