Camille Bauer SIRAX BM1450 User manual

Device handbook / Operating instructions
SIRAX BM1450
Universal, 4-channel DC meter for the determination of voltage,
current, power, capacity and energy
Camille Bauer Metrawatt AG
Aargauerstrasse 7
CH-5610 Wohlen/Schweiz
Tel: [phone]
Fax: [phone]
[email protected]
www.camillebauer.com

PM 1001812 000 00 Device handbook SIRAX BM1450 2/36
Legal information
Warning notices
In this document warning notices are used, which you have to observe to ensure personal safety and to prevent damage to property. The expla-
nation of the individual symbols can be found in chapter 2.
Qualified personnel
The product described in this document may be handled by personnel only, which is qualified for the respective task. Qualified personnel have
the training and experience to identify risks and potential hazards when working with the product. Qualified personnel are also able to understand
and follow the given safety and warning notices.
Intended use
The product described in this document may be used only for the application specified. The maximum electrical supply data and ambient con-
ditions specified in the technical data section must be adhered. For the perfect and safe operation of the device proper transport and storage as
well as professional assembly, installation, handling and maintenance are required.
Disclaimer of liability
The content of this document has been reviewed to ensure correctness. Nevertheless it may contain errors or inconsistencies and we cannot
guarantee completeness and correctness. This is especially true for dierent language versions of this document. This document is regularly
reviewed and updated. Necessary corrections will be included in subsequent version and are available via our webpage www.camillebauer.com.
Feedback
If you detect errors in this document or if there is necessary information missing, please inform us via e-mail to:
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Table of contents
1. Introduction ……………………………………………………………………………………………… 4
1.1 Purpose of this document ………………………………………………………………………………………… 4
1.2 Scope of supply ……………………………………………………………………………………………… 4
1.3 Further documents ……………………………………………………………………………………………… 4
2. Safety and warning notes…………………………………………………………………………………………… 4
3. Device overview ……………………………………………………………………………………………… 5
3.1 Brief description ……………………………………………………………………………………………… 5
3.2 Available measurement data ……………………………………………………………………………………… 5
4. IInstallation and commissioning …………………………………………………………………………………… 5
4.1 Mechanical installation …………………………………………………………………………………………… 6
4.1.1 Panel cut out ……………………………………………………………………………………………… 6
4.1.2 Mounting of the device ……………………………………………………………………………………… 6
4.1.3 Demounting of the device……………………………………………………………………………………… 6
4.2 Electrical connections……………………………………………………………………………………………… 6
4.2.1 Possible cross sections and tightening torques ………………………………………………………………… 7
4.2.2 Inputs ……………………………………………………………………………………………… 7
4.2.3 Power supply ……………………………………………………………………………………………… 7
4.2.4 Modbus interface RS485 ……………………………………………………………………………………… 7
4.3 Commissioning …………………………………………………………………………………………… 8
4.3.1 Operating the device ……………………………………………………………………………………… 8
4.3.2 LED indications ……………………………………………………………………………………………… 8
4.3.3 Measurement reding screens ………………………………………………………………………………… 9
4.3.4 Timer screen ……………………………………………………………………………………………… 10
4.3.5 Number of interruptions ……………………………………………………………………………………… 10
4.3.6 On hour ……………………………………………………………………………………………… 10
4.3.7 Run hour ……………………………………………………………………………………………… 10
5. Setup screens ……………………………………………………………………………………………… 12
6. Programming ……………………………………………………………………………………………… 13
6.1 Password protection ……………………………………………………………………………………………… 13
6.2 System Parameter selection screen ………………………………………………………………………………… 13
6.2.1 Automatic voltage detection …………………………………………………………………………………… 13

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6.2.2 Nominal voltage ……………………………………………………………………………………………… 14
6.2.3 Channel selection …………………………………………………………………………………………… 14
6.2.4 Current Full Scale value ……………………………………………………………………………………… 14
6.2.5 Current shunt value …………………………………………………………………………………………… 14
6.2.6 Demand intergration time ……………………………………………………………………………………… 14
6.2.7 Energy update rate …………………………………………………………………………………………… 14
6.2.8 Reverse locking ……………………………………………………………………………………………… 14
6.2.9 Auto scrolling ……………………………………………………………………………………………… 14
6.2.10 Noise current ……………………………………………………………………………………………… 15
6.2.11 Energy output ……………………………………………………………………………………………… 15
6.2.12 Energy digit reset count ……………………………………………………………………………………… 15
6.3 Selection of communication parameter ……………………………………………………………………………… 15
6.3.1 Address setting ……………………………………………………………………………………………… 15
6.3.2 Baud rate ……………………………………………………………………………………………… 15
6.3.3 Parity ……………………………………………………………………………………………… 15
6.4 Reset parameter selection ………………………………………………………………………………………… 15
6.5 Ouput parameter selection ………………………………………………………………………………………… 15
6.5.1 Select Relay output …………………………………………………………………………………………… 15
6.5.1.1 Limit Relay configuration………………………………………………………………………………… 15
6.5.1.1.1 Limit parameter ………………………………………………………………………………… 15
6.5.1.1.2 Limit configuration ……………………………………………………………………………… 16
6.5.1.1.3 Trip point ………………………………………………………………………………………… 16
6.5.1.1.4 Hysteresis ……………………………………………………………………………………… 16
6.5.1.1.5 Energizing delay ………………………………………………………………………………… 16
6.5.1.1.6 De-energizing delay ……………………………………………………………………………… 16
6.5.1.2 Pulse Relay configuration ……………………………………………………………………………… 16
6.5.1.2.1 Pulse parameter selection ………………………………………………………………………… 16
6.5.1.2.2 Pulse divisor …………………………………………………………………………………… 16
6.5.1.2.3 Pulse duration …………………………………………………………………………………… 17
6.5.1.3 Timer ……………………………………………………………………………………………… 17
6.5.1.3.1 Number of cycles ………………………………………………………………………………… 17
6.5.1.3.2 Timer configuration ……………………………………………………………………………… 17
6.5.1.3.3 On delay ………………………………………………………………………………………… 17
6.5.1.3.4 O delay ………………………………………………………………………………………… 17
6.5.1.4 Remote operation ……………………………………………………………………………………… 17
6.5.1.5 Reverse locking Ralay…………………………………………………………………………………… 17
6.5.1.5.1 Parameter selection ……………………………………………………………………………… 17
6.5.1.5.2 Relay configuration ……………………………………………………………………………… 17
6.5.1.5.3 On delay ………………………………………………………………………………………… 17
6.5.1.5.4 O delay ………………………………………………………………………………………… 17
6.6 User assignable screen setup ……………………………………………………………………………………… 17
6.6.1 Number of user screens ……………………………………………………………………………………… 17
6.7 Factory reset ……………………………………………………………………………………………… 17
6.7.1 Factory reset confirmation …………………………………………………………………………………… 17
7. Relay output ……………………………………………………………………………………………… 17
7.1 Limit Relay ……………………………………………………………………………………………… 17
7.2 Pulse output ……………………………………………………………………………………………… 18
7.3 Timer output ……………………………………………………………………………………………… 19
8. Service, maintenance and disposal ………………………………………………………………………………… 19
8.1 Repair work and modifications……………………………………………………………………………………… 19
8.2 Calibration and new adjustment …………………………………………………………………………………… 19
8.3 Cleaning ……………………………………………………………………………………………… 19
8.4 Disposal ……………………………………………………………………………………………… 19
8.5 Return ……………………………………………………………………………………………… 19
9. Technical data ……………………………………………………………………………………………… 19
9.1 Dimensional drawing ……………………………………………………………………………………………… 21
9.2 Connection and programming via RS485 (Modbus) interface ………………………………………………………… 21
10. Interface definition Modbus RTU ………………………………………………………………………………… 22
10.1 Modbus function ……………………………………………………………………………………………… 22
10.2 Data types ……………………………………………………………………………………………… 23
10.3 User assignable Modbus registers …………………………………………………………………………… 33

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1. Introduction
1.1 Purpose of this document
This document describes the universal, 4-channel DC meter SIRAX BM1450. It is intended to be used by:
• Installation personnel and commissioning engineers
• Service and maintenance personnel
• Planners
Scope
This handbook is valid for all hardware versions of the BM1450. Some of the functions described in this doc-ument are available only, if the
necessary optional components are included in the device.
Required knowledge
A general knowledge in the field of electrical engineering is required. For assembly and installation of the device knowledge of applicable national
safety regulations and installation standard is required.
1.2 Scope of supply
• Measurement device SIRAX BM1450
• Safety instructions (multiple languages)
• Connection set: 4 mounting clamps
1.3 Further documents
The following documents are provided electronically via www.camillebauer.com:
• Safety instructions SIRAX BM1450
• Operating Instructions SIRAX BM1450
• Data sheet SIRAX BM1450
• Flyer SIRAX Monitor Line
2. Safety and Warnings notes
Symbol Meaning
Device may only be disposed of in a professional manner!
Caution! General hazard point. Read the operating instructions.
If the warning notice is not followed damage to property or severe personal injury may result.
Attention: Danger to life!
If the warning notice is not followed death or severe personal injury will result.
Please note
If the warning notice is not followed the device may be damaged or may not fulfill the expected functionality.
CE conformity mark. The device fulfills the requirements of the applicable EC directives. See declaration of conformity.
Double insulation, device of protection class 2
CAT III
CAT II Measurement category CAT III and CAT II for current / voltage inputs, power supply and relay outputs

PM 1001812 000 00 Device handbook SIRAX BM1450 5/36
3. Device overview
3.1 Brief description
The universal 4-channel DC meter SIRAX BM1450 can be used for monitoring and control in DC systems. These meters measure a variety of
electrical parameters such as DC voltage, current, power, energy and electrical charge. They support bidirectional voltage and current measure-
ment, 1-channel voltage input, 4-channel current input and 4 relay outputs. The large 4-line, 8-digit LED display provides easy reading of data
directly on the device front. The configuration can be done on site using three pushbuttons or via Modbus RTU.
3.2 Available measurement data
Table 1
Parameter CH1 CH2 CH3 CH4 Σ Min Max Measuring range Display
range Accuracy
Voltage • • •
±10...±60 VDC
±61...±200 VDC
±201...±1000 VDC
0...±9999
±0.5%
des Nennwerts
Current • • • • • • 50...150 mV 0...±9999
±0.5%
des Nennwerts
Power (Import & Export) •••••
0...±1.2 MW / CH
0...±4.0 MW / CH
0...±20 MW / CH
0 ... ±9999
±0.5%
des Nennwerts
Energy (Import & Export) ••••• 0...99999999 0...99999999 Klasse 1
Electric charge (Import & Export)
Ampere Hour ••••• 0...99999999 0...99999999 –
Power Demand (Import & Export) ••••• •
0...±1.2 MW / CH
0...±4.0 MW / CH
0...±20 MW / CH
0...9999 –
Durrent Demand (Import & Export) ••••• • 50...150 mV 0...9999 –
On Hour •999999.59 999999.59 –
Run Hour •••• 999999.59 999999.59 –
Number of Interruptions •0...9999 0...9999 –
4. Installation and commissioning
The installation and commissioning should only be carried out by trained personnel. Check the following points before commissio-
ning:
- that the limits of the operating temperature are not exceeded: –10 … +55° C
- that the maximum values for all the connections are not exceeded, see „Technical data“ section,
- that the connection wires are not damaged, and that they are not live during wiring,
- the polarity of the DC supply is correct.
The instrument must be taken out of service if safe operation is no longer possible (e.g. visible damage). In this case, all the
connections must be switched o. The instrument must be returned to the factory or to an authorized service dealer.
It is forbidden to open the housing and to make modifications to the instrument. The instrument is not equipped with an integrated
circuit breaker. During installation check that a labeled switch is installed and that it can easily be reached by the operators.
Unauthorized repair or alteration of the unit invalidates the warranty.
The national provisions have to be observed in the installation and material selection of electric lines!

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4.1 Mechanical installation
4.1.1 Panel cut out
4.1.2 Mounting of the device
The device is suitable for panel widths up to 5mm
Variant with Mounting clamps
a) Slide the device into the cutout from the outside
b) Mounting is by four side clamps, slide the side clamps through side slot till side
clamp gets firmly locked in a groove (Refer fig.) Consideration should be given
to the space required behind the instrument to allow for bends in the connection
cables.
4.1.3 Demounting of the device
The demounting of the device may be performed only if all connected wires are out of service. Remove all plug-in terminals and all connections
of the current and voltage inputs. Pay attention to the fact, that current transformers must be shortened before removing the current connections
to the device. Then demount the device in the opposite order of mounting.
4.2 Electrical connections
Ensure under all circumstances that the leads are free of potential when connecting them!

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4.2.1 Possible cross sections and tightening torques
Terminals 1 … 14
Single wire: ≤ 4,0mm2 or multiwire with end splices: 2 x 1,5mm2
Torque: 0.5 … 0.6Nm rsp. 4.42 … 5.31 lbf in
Terminal A, B, G
Single wire: ≤ 1,5mm2 or multiwire with end splices: 2 x 0,75mm2
Torque: max. 0.5 Nm rsp. 4.42 lbf in
4.2.2 Inputs
All voltage measurement inputs must originate at circuit breakers or fuses rated by 1 Amps.
For safety reasons, the panel must be properly grounded in accordance with local regulations.
Vdc+
Vdc-
L N
AUX
SUPPLY
7 9 13 144 61 38 112
V+ V- I1-I1+ I2-I2+ I3-I3+ I4-I4+
5
LOAD 1 LOAD 2 LOAD 3 LOAD 4
4.2.3 Power supply
A marked and easily accessible current limiting switch has to be arranged in the vicinity of the device for turning o the power
supply. Fusing should be 10 Amps or less and must be rated for the available voltage and fault current.
4.2.4 Modbus interface RS485
Via the optional Modbus interface measurement data may be provided for a superior system. However, the Modbus interface cannot be used for
device parameterization.
MASTER
+3.3 / +5V
Rx/Tx+,A
RS485 Bus
Rs
Rt
Rs
Rx/Tx-,B
GND
1)
Rt
A B G A B G A B G
1) One ground connection only. This is
possibly made within the master
(PC).
Rt: Termination resistors: 120 Ω each for
long cables (> approx. 10 m)
Rs: Bus supply resistors,
390 Ω each
The signal wires (A, B) have to be twisted. GND (G) can be connected via a wire or via the cable screen. In disturbed environments shielded
cables must be used. Supply resistors (Rs) have to be present in bus master (PC) interface. Stubs should be avoided when connecting the
devices. A pure daisy chain network is ideal.
You may connect up to 32 Modbus devices to the bus. A proper operation requires that all devices connected to the bus have equal
communication settings (baud rate, transmission format) and unique Modbus addresses.
The bus system is operated half duplex and may be extended to a maximum length of 1200 m without repeater.

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4.3 Commissioning
Before commissioning you have to check if the connection data of the device match the data of the plant.
If so, you can start to put the device into operation by switching on the power supply and the measurement inputs.
It is to be noted, that the data given on the type plate are respected!
ORDER CODE: 177065
SR No.: 16/12/0001
SIRAX BM1450
AUXILIARY: 60..300V AC/DC, 6.0VA
CLASS: 1.0
CURRENT INPUT: 4 CH, 50...150mV
V3.02
OPTION: RS485 + 4Relay
!
VOLTAGE INPUT: 1 CH, 10...60VDC
Label version standard
4.3.1 Operating the device
The following values of the SIRAX BM1450 can be configured and
programmed on site: voltage input, current input, shunt setting range,
number of channels and demand integration time.
There are three buttons on the front panel that allow the user to navigate
through the available measured values (instantaneous values, energy,
and min./max.) and to configure the device.
Operation is performed by means of 3 keys:
• 3 keys “ UP”, “ DOWN” and "OK" for navigation and for the
selection of values.
4.3.2 LED indications
The LED indicators are used for various purposes. They change color according to their status.
In the setup menu
LED Operating condition
green Display of the channel to be parameterized
In display mode
LED Operating condition
green Normal operation (good condition)
red Overload condition
In display mode with limit relay
LED Operating condition
green Normal operation (good condition)
red Alarm condition available
Down Up Enter key
LED Channel
(Grün & Rot)
LED Parameter
LED
Multiplier
In the display mode with derived parameters (power, energy, amp
hours)
LED Operating condition
green Voltage and current in normal operation (good condition)
red If one of the parameters is in overload condition
red For limit assignment in the alarm state
green With limit assignment normal operation (state good)
When more than one from the above conditions are applicable, the LEDs will
follow "OR" logic for alarm condition and "AND" logic for healthy condition,
i.e. it will glow red when even one of the alarm conditions is true and it will
only glow green when all of the healthy conditions are true.

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4.3.3 Measurement Reading Screens
In normal operation the user is presented with one of the measurement reading screens out of several screens. These screens may be scrolled
through one at a time in incremental order by pressing the “ UP” key and in decremental order by pressing “ DOWN” key.
Example of a current display with the following values:
Channel 1: 10 A
Channel 2: 20000 A (20 x 103)
Channel 3: 300 A
Channel 4: Overload condition
For channels 1 and 2, the LEDs light up green, so these channels
are in the normal state (good condition).
For channel 3, the LED lights up red and a measured value is
displayed. This means that a limit relay is used on this channel
and an alarm state is present.
For channel 4, the LED lights up red and -OL- is displayed on the
display. This means that the measured value is above the nominal
value on this channel.
Example of a power display with the following values:
Channel 1: 10 W
Channel 2: 20000000 W (20 x 106)
Channel 3: 300000 W (300 x 103)
Channel 4: Overload condition
For channels 1 and 2, the LEDs light up green, so these chan-
nels are in the normal state (good condition).
For channel 3, the LED lights up red and a measured value is
displayed. This means that one of the following conditions exists:
1. On this channel there is a limit relay and the alarm state is
given
2. Voltage and current values are in overload condition
Power import indicator Display Overload condition Energy import
Shown above are the import energy screens. The display of the meter can only accommodate 8 digits. So to display more than 8 digit energy, an
overflow screen is added. When the energy reaches the energy digit reset count, it starts the count from 0 again. When this happens the corres-
ponding overflow is increased by 1. The maximum value of the overflow is 2000 for individual channels. Thus the highest energy that the meter
can show is 200099999999 Mwh. To obtain the value for current energy reading, the user need to multiply the overflow count by 10 raised to
energy digit reset count for the corresponding channel and add the result in displayed energy reading.
Channel 1: [(100 x 108) + 5030] = 10000005030 Wh
Channel 2: [(28 x 107) + 14800] = 280014800 Wh
Channel 3: [(8 x 106) + 250000] = 8250000 kWh
Channel 4: [(24 x 108) + 4300] = 2400004300 MWh

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4.3.4 Timer screen
As shown in the picture above, there are upto four timer screens
present in measurement screens. They show values of number of
cycles, on delay and o delay for corresponding timer. When timer
is running, these values are shown in countdown mode.
are shown in countdown mode.
If number of cycles is set as 0, then on this screen number of cycles
will always increment from 0 up to 9999.
Note: 1. Press UP key to start the timer
2. Press down key to stop the timer
Timer unused: Timer is not selected as a relay output
4.3.5 Number of Interruptions
This screen shows the number of power supply interruptions that
the meter has encountered. After 9999 this value will start it's
count from 0. User can reset this count in the reset menu.
4.3.6 On hour
This screen shows the total number of hours the auxiliary supply
has stayed on. Even if the Auxiliary supply is interrupted count of
on hour will be maintained in internal memory & displayed in the
“hhhhhh.mm” format. For example if displayed count is 105000.10
it indicates 105000 hours and 10 minutes. After 999999.59 On
hours display will restart from zero. The user can reset this value in
reset parameters menu.
4.3.7 Run hour
This Screen shows the total no. of hours each of the load has been
connected. Even if the Auxiliary supply is interrupted, count of
Run hour will be maintained in internal memory & displayed in the
format “hhhhhh.mm”.
For example if Displayed count is 105000.10 it indicates 105000
hours & 10 minutes. After 999999.59 run hours display will restart
from zero. The user can reset these values in reset parameters
menu.