HBM PAD4001A User manual

Operating Manual | Bedienungsanleitung |
Manuel d'emploi
English Deutsch Français
PAD4001A/4003A

Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64239 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbm.com
Mat.: 7-1001.4238
DVS: A4238-1.0 HBM: public
10.2015
EHottinger Baldwin Messtechnik GmbH.
Subject to modifications.
All product descriptions are for general information only.
They are not to be understood as a guarantee of quality or
durability.
Änderungen vorbehalten.
Alle Angaben beschreiben unsere Produkte in allgemeiner
Form. Sie stellen keine Beschaffenheits- oder Haltbarkeits
garantie dar.
Sous réserve de modifications.
Les caractéristiques indiquées ne décrivent nos produits
que sous une forme générale. Elles n'impliquent aucune
garantie de qualité ou de durablilité.

Operating Manual | Bedienungsanleitung |
Manuel d'emploi
English Deutsch Français
PAD4001A/4003A
Digital transducer electronics

2A4238-1.0 HBM: public PAD4001A/4003A
English
1 Safety instructions 3........................................
2 Markings used 7............................................
2.1 Symbols on the device 7......................................
2.2 The markings used in this document 7..........................
3 Structure and mode of operation 9...........................
3.1 Structure of the electronics 10..................................
3.2 Signal conditioning 11.........................................
3.3 Adaptive interference suppression 12............................
3.4 Inputs and outputs 13.........................................
3.4.1 Trigger function 13............................................
3.4.2 Filling and dosing 14..........................................
3.4.3 Limit value function 14.........................................
3.4.4 Extreme value functions 14....................................
4 Conditions on site 15........................................
5 Mechanical installation 16....................................
5.1 Important precautions during installation 16......................
5.2 Dimensions 17...............................................
6 Electrical connection 18......................................
6.1 Cable laying 18...............................................
6.2 Pin assignment 18............................................
6.3 Supply voltage 21.............................................
7 Interfaces 23................................................
7.1 RS‐485 4‐wire interfaces (UART) 23............................
7.2 CANopen interface 25.........................................
8 Operation via software 27....................................
9 Waste disposal and environmental protection 27..............

Safety instructions
PAD4001A/4003A A4238-1.0 HBM: public 3
1 Safety instructions
Appropriate use
PAD digital transducer electronics are to be used exclus
ively for measurement tasks and directly related control
tasks within the application limits detailed in the specifica
tions. Any other use is not appropriate.
Any person instructed to carry out installation, commis
sioning or operation of the device must have read and
understood the Operating Manual and in particular the
technical safety instructions.
In the interests of safety, the device should only be oper
ated by qualified personnel and as described in the Oper
ating Manual. It is also essential to comply with the legal
and safety requirements for the application concerned
during use. The same applies to the use of accessories.
PAD is not intended for use as a safety component.
Please also refer to the "Additional safety precautions"
section. Proper and safe operation requires proper trans
portation, correct storage, siting and mounting, and care
ful operation.
Operating conditions
SPlease observe the allowed maximum values stated
in the specifications for:
- Max. supply voltage
- Max. voltage for inputs and outputs
- Max current of outputs
- Temperature limits
SMake sure that the max. current for plugs and sockets
is adhered to in bus mode.

Safety instructions
4A4238-1.0 HBM: public PAD4001A/4003A
SThe device must not be modified from the design or
safety engineering point of view except with our ex
press agreement. In particular, any repair or soldering
work on motherboards (exchanging components) is
prohibited.
SThe device is delivered from the factory with a fixed
hardware and software configuration. Changes can
only be made within the possibilities listed in the cor
responding documentation.
SThe device is maintenance free.
SPlease note the following points when cleaning the
housing:
- Disconnect the device from all current and voltage
supplies before cleaning it.
- Clean the housing with a soft, slightly damp cloth.
Never use solvent, as this could damage the label
or the housing.
- When cleaning, ensure that no liquid gets into the
device or connections.
SIn accordance with national and local environmental
protection and material recovery and recycling regula
tions, old equipment that can no longer be used must
be disposed of separately and not with normal house
hold garbage, see Chapter9 on page27.
Qualified personnel
Qualified persons means persons entrusted with the in
stallation, fitting, commissioning and operation of the
product who possess the appropriate qualifications for
their function.
This includes people who meet at least one of the three
following requirements:

Safety instructions
PAD4001A/4003A A4238-1.0 HBM: public 5
SKnowledge of the safety concepts of measurement
and automation technology is a requirement and as
project personnel, they must be familiar with these
concepts.
SAs measurement or automation plant operating per
sonnel, they been instructed how to handle the ma
chinery. They are familiar with the operation of the
equipment and technologies described in this docu
mentation.
SAs commissioning engineers or service engineers,
they have successfully completed the training to qual
ify them to repair the automation systems. They are
also authorized to activate, ground and label circuits
and equipment in accordance with safety engineering
standards.
Working safely
SThe device must not be directly connected to the
power supply system. The supply voltage must be
between 12 and 30VDC.
SError messages should only be acknowledged once
the cause of the error is removed and no further
danger exists.
SAutomation equipment and devices must be designed
in such a way that adequate protection or locking
against unintentional actuation is provided (e.g. ac
cess checks, password protection, etc.).
SFor those devices operating in networks, safety pre
cautions must be taken both in terms of hardware and
software, so that a line break or other interruptions to
signal transmission do not cause undefined states or
loss of data in the automation device.

Safety instructions
6A4238-1.0 HBM: public PAD4001A/4003A
SAfter making settings and carrying out activities that
are password-protected, ensure that any controls that
may be connected remain in a safe condition until the
switching performance of the device has been tested.
Additional safety precautions
Additional safety precautions to meet the requirements of
the relevant national and local accident prevention regu
lations must be taken in plants where malfunctions could
cause major damage, loss of data or even personal in
jury.
The scope of supply and performance of the device cov
ers only a small area of measurement technology. Before
starting up the device in a system, a project planning and
risk analysis must first be implemented, taking into ac
count all the safety aspects of measurement and auto
mation technology so that residual risks are minimized.
This particularly concerns personal and machine protec
tion. In the event of a fault, the relevant precautions must
establish safe operating conditions.
General dangers of failing to follow the safety
instructions
The device is state of the art and failsafe. The device
may give rise to residual dangers if it is inappropriately
installed or operated.

Markings used
PAD4001A/4003A A4238-1.0 HBM: public 7
2 Markings used
2.1 Symbols on the device
CE mark
The CE mark enables the manufacturer to guarantee that
the product complies with the requirements of the relev
ant EC directives (the Declaration of Conformity can be
found on the HBM website (www.hbm.com) under HBM
doc).
Statutory waste disposal mark
In accordance with national and local environmental pro
tection and material recovery and recycling regulations,
old devices that can no longer be used must be disposed
of separately and not with normal household garbage.
Also see Chapter9 on page27.
2.2 The markings used in this document
Important instructions for your safety are specifically
identified. It is essential to follow these instructions in or
der to prevent accidents and damage to property.
Symbol Significance
Notice This marking draws your attention to a situation in
which failure to comply with safety requirements can
lead to damage to property.
Important
This marking draws your attention to important in
formation about the product or about handling the
product.

Markings used
8A4238-1.0 HBM: public PAD4001A/4003A
SignificanceSymbol
Information
This marking draws your attention to information
about the product or about handling the product.
Emphasis
See …
Italics are used to emphasize and highlight text and
identify references to sections, diagrams, or external
documents and files.

Structure and mode of operation
PAD4001A/4003A A4238-1.0 HBM: public 9
3 Structure and mode of operation
PAD digital transducer electronics are part of the family
of electronics developed by HBM for static and dynamic
weighing processes. They record the measurement sig
nals of connected sensors with strain gages. The trans
ducer electronics digitally condition the signals and de
liver a fully-filtered, scaled and digitized output signal for
direct connection to bus systems or PCs via the RS‐485
interface or CANopen. The electronics can be quickly
and easily matched to a particular system by various
parameters, and they work with an internal data rate of
up to 1200 measurements per second.
The inbuilt digital inputs and outputs allow event-driven
weight determination, e.g. for checkweigher applications
or dosing controls. The digital outputs can be configured
by software command, and can be used to control coarse
flow and fine flow in dosing valves, for example.
The PanelX software is available as a free download
from the HBM website for setting all the parameters in
full, for realizing dynamic measurement signals, and for
frequency analysis of the dynamic system:
http://www.hbm.com/software.
Information
This part of the operating manual describes the hardware
and the functions of the electronics. The communication
commands and detailed configuration instructions for
various applications are included in the online document
ation of the PanelX program.

Structure and mode of operation
10 A4238-1.0 HBM: public PAD4001A/4003A
3.1 Structure of the electronics
Voltage
control
Interface
I/Os
Supply voltage
UB/GND
Interface
RS-485/CANopen
IO
Trigger,
Stop Dosing
EEPROM
Linearization
Serial number
Digital filter
Data rate
Sensitivity
Zero value
μP
A
D
PAD
Fig. 3.1 Block diagram
The analog transducer signal is first amplified, then ana
log filtered, and digitized in the A/D converter. This signal
is processed in the microprocessor and can be transmit
ted over the interface. Digital inputs/outputs are available
for control. The electronics have various programs for
applications such as filling, dosing, checkweighers or
weight grading machines. All the parameters can be
stored power failsafe.

Structure and mode of operation
PAD4001A/4003A A4238-1.0 HBM: public 11
3.2 Signal conditioning
FMD
ASF ICR SZA SFA NOV, RSN LDW, LWT LIC
PVA
IMD
LIV
TAV, TAS Net
meas.
value
Gross
meas.
value
Extreme
values
Trigger/
Stop
Limit
values
Samp-
ling
rate
Working
standard
calibration
Filter Tare
A
D
User-defined
scaling Lineari−
zation
Min/
Max
Trigger
Limit
values
RUN
BRK
Coarse Flow
Fine Flow
Ready
Alarm
Dosing control
Fig. 3.2 Signal conditioning
Digitization is followed by filtering, using digital filters ad
justed by the software. The command ICR changes the
output rate (measured values per second).
In the working standard calibration of the electronics (on
delivery), 0 mV/V corresponds to zero and the maximum
capacity is either 1,000,000digits (NOV≠0), or
5,120,000digits (NOV=0). The two parameters LDW and
LWT give you the opportunity to adapt the characteristic
curve to meet your requirements (scale curve) and you
can use the NOV command to standardize the measured
values to the required scaling value (e.g. 3000d). De
tailed information can be found in the command docu
mentation and in the Online Help for the PanelX pro
gram.
You also have the opportunity to
Sswitch from gross to net signals,

Structure and mode of operation
12 A4238-1.0 HBM: public PAD4001A/4003A
Sactivate an automatic zero on start up function,
Sactivate an automatic zero tracking function,
Slinearize the input signal with a third order polynomial,
Sactivate various digital filters. Available filters include
those with cut-off frequencies below 1Hz, fast-settling
filters for dynamic measurements, notch filters and
mean value filters.
Use MSV? to read out the current measured value. The
format of the measured value (ASCII or binary) is set
with the COF command. You can also use the COF com
mand to activate automatic measurement output. The
measured values are transmitted in the following format,
subject to the COF command:
Output format Input signal Output when NOV=0 Output when
NOV>0
Binary, 2 chars. (INT) 0 …maximum
capacity
0 …20,000digits 0 …NOV
Binary, 4 chars. (LONG) 0 …maximum
capacity
0 …5,120,000digits 0 …NOV
ASCII 0 …maximum
capacity
0 …1,000,000digits 0 …NOV
3.3 Adaptive interference suppression
Whatever the mode of operation, you can use the ADF
command to activate automatic interference suppression
with adaptive filters. Interference frequencies are auto
matically found during measurement and suppressed by
comb filters and averaging. The maximum filter settling
time can be limited with the TMA command.

Structure and mode of operation
PAD4001A/4003A A4238-1.0 HBM: public 13
3.4 Inputs and outputs
The two I/Os can be used either as inputs or outputs.
You can also set different switching levels (TTL or PLC)
for the inputs. On delivery, both I/Os are set as inputs
with a TTL level. Specify the function of the I/Os as in
puts with commands IM1 and IM2, and the function as
outputs with OM1 and OM2.
Notice
The electronics must be operated with a supply voltage
of between 12 and 30V. Incorrect connections between
the supply and interface cables or digital inputs/outputs
can cause irreversible damage.
Check the correct assignment of the connections before
switching on for the first time.
3.4.1 Trigger function
In Trigger mode (command IMD1), the electronics have
four different trigger functions:
SPre-triggering by level
SPre-triggering by external (digital) signal
SPost-triggering by level
SPost-triggering by external (digital) signal
Gross or net values can be used as input values. The
filter settling time can be optimized by the actual elec
tronics (command AST).

Structure and mode of operation
14 A4238-1.0 HBM: public PAD4001A/4003A
3.4.2 Filling and dosing
The electronics include full dosing control (command
IMD2). As many as 32 parameter sets can be stored in
the EEPROM for different applications. But you can still
change the dosing parameters yourself during dosing.
Digital outputs can be used to control coarse and fine
flow, for example. The PanelX software includes detailed
instructions for setting the different parameters.
3.4.3 Limit value function
In Standard and Trigger modes (command IMD), the
electronics allow as many as four limit values to be mon
itored (command LIV). Gross or net values, the trigger
result, or the extreme values (Min/Max) are available to
you as input signals. Use the measurement status to
read out the status, either simultaneously with the meas
ured values (command MSV?) or separately (command
RIO?).
3.4.4 Extreme value functions
The electronics include a peak value function (Minimum
and Maximum, command PVS), that monitors either the
gross or net values, as required. Use command PVA to
read out the values and use command CPV to reset the
peak values.

Conditions on site
PAD4001A/4003A A4238-1.0 HBM: public 15
4 Conditions on site
The PAD is hermetically encapsulated by laser welding
and is made from materials that do not rust. They are
therefore largely impervious to humidity and moisture.
The devices achieve protection classes IP68 (test condi
tions: 100 hours under 1m water column) and IP69K
(water at high pressure, steam cleaning), as per DIN
EN605291). The devices should nevertheless be protec
ted against the long-term effects of moisture and humid
ity.
Important
Note that when using a steam cleaner, the conditions
stated in EN 60529 under degree of protection IP69K
such as max. pressure, max. temperature, etc., must be
met.
Protection against corrosion
The device must be protected against chemicals that
could attack the steel of the housing, the plugs or the
cables.
Information
Acids and all substances that release ions also attack
stainless steels and their seam welds.
Subsequent corrosion can cause the device to fail. If this
is the case, you must provide appropriate means of pro
tection.
1) With fitted plugs of the same protection class.

Mechanical installation
16 A4238-1.0 HBM: public PAD4001A/4003A
5 Mechanical installation
5.1 Important precautions during
installation
SWelding currents must not be allowed to flow over the
electronics. If there is a risk that this might happen,
you must provide a suitable low-ohm connection to
electrically bypass the electronics.
Notice
PAD electronics are precision measuring elements, and
need to be handled carefully. Dropping or knocking them
may cause permanent damage. Tighten the plug during
installation with a torque of max. 4Nm.
Important
Before mounting several weighing modules into an in
stallation with a bus system, take the following into ac
count:
The printed production number (type plate) is required for
setting up data communication. If the type plate can no
longer be seen after installation, the numbers of each
weighing module should be noted beforehand. This en
ables different addresses to be assigned during the initial
start-up.
Alternatively, before connection to the bus system, you
can connect each weighing module individually with a
PC, in order to set different addresses (see ADR com
mand in the Online Help).

Mechanical installation
PAD4001A/4003A A4238-1.0 HBM: public 17
5.2 Dimensions
smallest bending
radius
26 (mobile 52)
126.7+1 26
9.5
16
M14x1
∅32
∅15
∅12.4
12.7+1
13 AF
46
∅161) ∅142)
∅5.3±0.2
9+1 88
M12x1
Serial No.: nnnnnnn
Year: yyyy
Type : PAD4001A−xxx
UB=+12V...+30V
IB, max = 1.1A
1) 4001A: PW15PH, PW25P, PW29P
2) 4003A: PW27P
Fig. 5.1 Dimensions

Electrical connection
18 A4238-1.0 HBM: public PAD4001A/4003A
6 Electrical connection
Notice
Electronic components are sensitive to electrostatic dis
charge (ESD). So you must discharge your own static
electricity before touching the connector plugs.
6.1 Cable laying
Position the connection cable so that any condensation
or moisture that may occur at the cable can drip off
(loop). It must not be able to reach the electronics. Also
make sure that it is not possible for humidity or moisture
to get into the cables through open ends, thus preventing
damage to the cable sheath.
6.2 Pin assignment
Notice
The electronics must be operated with a supply voltage
of between 12 and 30V. Incorrect connections between
the supply and interface cables or the digital inputs/out
puts can cause irreversible damage.
So you must check the correct assignment of the con
nections before switching on for the first time.
The electronics have an 8‐pin connector plug (M12) for
connecting to a transducer (Fig. 6.1).