Alfalaval UltraPure analogue User manual

Instruction manual
Weighing system UltraPure analogue
Applies to:
Program no.: MCE2529.STD.091103.1
Document no.: 1103mu2029-2010-1.DOC
Date: 2009-11-09
Rev.: 1
Instruction manual no.: IM-TE91K010-EN1

Instruction Manual IM-TE91K010-EN1 Page 1
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
1) CONTENTS
1) CONTENTS ...................................................................................................................................................................1
2) INTRODUCTION..........................................................................................................................................................3
2.1 Introduction...............................................................................................................................................................3
3) MCE2010 DESCRIPTION.............................................................................................................................................4
4) USER INTERFACE.......................................................................................................................................................6
4.1 Display, lamps and keyboard....................................................................................................................................6
4.2 Display modes...........................................................................................................................................................7
4.2.1LoAd mode .................................................................................................................................................7
4.2.2OutPut mode................................................................................................................................................7
4.2.3PASS mode .................................................................................................................................................7
4.2.4ZEro mode...................................................................................................................................................8
4.2.5CAL.L. mode ..............................................................................................................................................8
4.2.6CAL. mode..................................................................................................................................................8
4.2.7CAL.F. mode...............................................................................................................................................8
4.2.8N.Lc. mode..................................................................................................................................................9
4.2.9N.Crn. mode................................................................................................................................................9
4.2.10Int.PEr. mode ..............................................................................................................................................9
4.2.11Unit mode....................................................................................................................................................9
4.2.12dPno mode...................................................................................................................................................9
4.2.13div mode......................................................................................................................................................9
4.2.14SP. 1 and SP. 2 mode..................................................................................................................................9
4.2.15An.SP. mode..............................................................................................................................................10
4.2.16dAc.tSt. mode............................................................................................................................................10
4.2.17LC x mode.................................................................................................................................................10
4.2.18Err.rEg. mode............................................................................................................................................10
4.3 Level alarms............................................................................................................................................................11
4.4 Filtering...................................................................................................................................................................11
4.5 RS485 serial communication ..................................................................................................................................12
5) STATUS CODES.........................................................................................................................................................13
6) ERROR CODES...........................................................................................................................................................14
7) TROUBLE SHOOTING ..............................................................................................................................................15
7.1 Status code indication .............................................................................................................................................15
7.2 Error code indication...............................................................................................................................................15
7.3 Analog output error.................................................................................................................................................15
8) INSTALLATION OF SYSTEM ..................................................................................................................................16
8.1 Checklist during installation ...................................................................................................................................16
8.2 Calibration procedure..............................................................................................................................................17
9) HARDWARE DESCRIPTION ....................................................................................................................................18
9.1 MCE2029 overview................................................................................................................................................18
9.2 Connection of power and load cells........................................................................................................................18
9.3 DIP-switch settings.................................................................................................................................................19
9.4 Light Emitting Diodes.............................................................................................................................................20
9.5 Jumpers...................................................................................................................................................................20
9.6 JTAG connector......................................................................................................................................................20
9.7 RS485 connector.....................................................................................................................................................21
9.8 Analog output connector.........................................................................................................................................21
9.9 Digital output and input connector..........................................................................................................................22
9.10 Hardware Selftest..................................................................................................................................................22
9.11 Update times .........................................................................................................................................................22
10) How to contact Alfa Laval Tank Equipment A/S.......................................................................................................23

Instruction Manual IM-TE91K010-EN1 Page 3
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
2) INTRODUCTION
2.1 Introduction
This document describes the use of a MCE2029 analog module from Alfa Laval, when
they are equipped with the program listed on the front page.
With the program specified on the front page, the MCE2029 analog module is capable of
transmitting the weight for a system with up to 8 load cells as an analog 4-20 mA signal (or
0-10V depending on factory settings). Each load cell is connected to the MCE2029 analog
module through a load cell interface module.
By use of DIP switches it is possible to include one of 3 different FIR filters, which will be
used to filter the weight signal.
IMPORTANT: Load cell modules and instrumentation must be placed outside the
hazardous zone if the load cells are used in hazardous ATEX (Ex) area. Furthermore,
only ATEX certified load cells and instrumentation can be used in ATEX applica-
tions.
Note: The illustrations and specifications contained in this manual were effective at the
date of printing. However, as continuous improvements are our policy, we reserve the
right to alter or modify any unit specification on any product without prior notice or any
obligation.

Page 4 Instruction Manual IM-TE91K010-EN1
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
3) MCE2010 DESCRIPTION
Below the layout of the MCE2010 load cell module is shown. Before using the system the
load cells must be connected to the load cell modules.
Please notice that the load cell and the load cell module MUST be marked
with the same year/serial number. These are printed on the type-plate of the
load cell and on a small sticker placed below the BNC plug on the load cell
module. Load cells and load cell modules MUST NOT be intermixed because
the program in each load cell module is SPECIALLY adapted to one load
cell only (and only this load cell). The load cell module MUST be connected
to exactly the load cell it is intended for and vice versa.
The load cell modules are connected to each other using the supplied cable (10 pole ribbon
cable). The MCE2029 analog module is connected using the same cable.
All switches (SW1) in the load cell module must be at the correct position before use.
Please notice that the switches (SW1) are only read once during power-up. If a change in
the switch setting is necessary the power has to be disconnected and then reconnected (af-
ter 10 seconds). Then the MCE2010 load cell module recognizes the new switch setting.

Instruction Manual IM-TE91K010-EN1 Page 5
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
The switches SW1.1 to SW1.4 are used to select different modes of operation. The below
table is valid for the normal standard software in the load cell module. Unless expressly
specified, the default settings must normally be used.
MCE2010 SW1.1 to SW1.4
SW1 No Default setting Function
1 OFF Baud rate
OFF: 115200
ON: 230400
2 ON Filter, MSB
3 ON Filter, LSB
4 OFF Not used
Switch SW1.5 to SW1.8 are used for address selection. All load cell modules must have
unique addresses ascending from 0 with no gaps unless expressly specified otherwise. No
addresses may be skipped and no addresses may be used by more than one load cell mod-
ule. In systems with 1-8 load cells switch SW1.5 must be set to OFF.
MCE2010 SW1.6 to SW1.8
SW1.5 SW1.6 SW 1.7 SW1.8 Address
OFF OFF OFF OFF 0
OFF OFF OFF ON 1
OFF OFF ON OFF 2
OFF OFF ON ON 3
OFF ON OFF OFF 4
OFF ON OFF ON 5
OFF ON ON OFF 6
OFF ON ON ON 7
The three LED’s are used to indicate the following conditions:
MCE2010 LED’S
TXBB Green Lit whenever the load cell module transmits data. Must be
on/flashing rapidly whenever the system is started.
D1 Yellow No synchronization between load cell modules: One or more load
cells not connected to load cell module or poor connection.
SYNC ERR Red No load cell synchronization: No load cell connected to load cell
module or poor connection.

Page 6 Instruction Manual IM-TE91K010-EN1
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
4) USER INTERFACE
4.1 Display, lamps and keyboard
The MCE2029 analog module is operated using a display, a series of control lamps, 4 DIP-
switches and 5 keys.
The control lamps have the following functions:
TXBB (Green) Lit when communicating with the connected load cell modules.
D1 (Yellow) Lit when a key is activated.
AN.ERR. (Red) Lit when the analog output signal is different from its pro-
grammed value.
The 5 keys have the following functions:
”F” Cyclic change between different display modes etc.
”Up” Increments desired value etc.
”Down” Decrements desired value etc.
”Esc” Regret desired value etc.
”Enter” Accept of selected display value etc. This key must be pressed
in order to accept any change of parameter
The ”F” key can be used to change between different display modes. In a given mode the
display will alternately show ”XXXXXX” and ”YYYYYY”. Here ”XXXXXX” will be a
text indicating the actual mode, while ”YYYYYY” will indicate the actual value belonging
to this mode.
By holding down the ”F” key and then pressing ”Esc” the LoAd” mode is selected.
If during power-on the display shows ”Par.SEt.”this is because parameters have to be set.
The ”F” key can then be used to proceed to “LoAd” mode and the chapter describing
”Err.rEg.” mode can be used for further information.
If at any time the display shows ”-OL-”(OverLoad) or ”-UL-”(UnderLoad) this is be-
cause the actual value to be shown in the display is too large/small.

Instruction Manual IM-TE91K010-EN1 Page 7
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
4.2 Display modes
It is possible to select between the following modes:
MODE FUNCTION
”LoAd” used during normal operation for display of gross weight.
”OutPut” used for display of the actual analog output signal.
”PASS” used during selection of password.
”ZEro” used during zero of the weight indication.
”CAL.L.” used during calibration of the weight indication.
”CAL.” used during calibration of the weight indication.
”CAL.F.” used to calculate the calibrated weight indication.
”n.Lc.” used to indicate number of loadcells.
”n.Crn.” used to indicate number of corners (supporting points).
”Int.PEr.” used to indicate integration period (measurement time).
”Unit” used to set desired weighing parameters (unit).
”dPno” used to set desired weighing parameters (decimal point position).
”div” used to set desired weighing parameters (division).
”SP. 1” used to control digital output 1.
”SP. 2” used to control digital output 2.
”An.SP.” used to indicate weight value for full analog output signal.
”dAc.tSt.” used to test the analog output signal.
”LC x ” used to show loadcell status/signal for loadcell x (0-7).
”Err.rEg.” used to show various error codes.
4.2.1 LoAd mode
This mode is used during normal operation to show the actual gross weight. The weight in-
dication is indicated in gram, kg or ton depending on the selected weighing parameters
(”Unit” , ”dPno” and ”div”). If the MCE2029 analog module detects a situation that re-
sults in a status code indication different from 0, the display will show the status code as “-
xxxx-“ instead of the weight indication, and it will output its maximum value (20mA or
10V) on its analog output for the duration of this situation.
4.2.2 OutPut mode
This mode is used for indication of the actual analog output signal. The analog output sig-
nal is shown in mA/V depending on the hardware configuration of the MCE2029 analog
module.
4.2.3 PASS mode
This mode is used to select password. To avoid unintended change of parameters the mod-
ule is equipped with a password. To change parameters, zero or calibrate the weight indica-
tion from the keyboard the user has to set the actual password so that it equals ”1357”. He-
reafter the ”Enter” key is pressed to accept the value.
Remember to clear the password in the same fashion when done.

Page 8 Instruction Manual IM-TE91K010-EN1
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
4.2.4 ZEro mode
This mode is used during zero of the weight indication (gross weight). The zero should on-
ly be done with an empty and clean weighing platform. The display shows the actual
weight as in ”LoAd” mode. The weight indication is indicated in gram, kg or ton depend-
ing on the selected weighing parameters (”Unit” , ”dPno” and ”div”). If the MCE2029
analog module detects a situation that results in a status code indication different from 0,
the display will show the status code as “-xxxx-“ instead of the weight indication, and it
will output its maximum value (20mA or 10V) on its analog output for the duration of this
situation.
The zeroing is performed by pressing ”Enter”, if the correct password has been selected. A
zeroed and empty system will cause the analog output signal to go to its minimum value
(4mA or 0V). Note that on a MCE2029 analog module running in current configuration,
the analog output signal can go below 4mA for negative weight indications.
The zeroing can also be made using the digital input IN1. Zeroing using the digital input
IN1 can be performed regardless of password value and the selected display mode.
4.2.5 CAL.L. mode
This mode is used during calibration of the weight indication. The display shows the de-
sired calibration load to be used during calibration. The calibration load is indicated in
gram, kg or ton depending on the selected weighing parameters (”Unit” , ”dPno” and
”div”). The calibration itself is performed in ”CAL.” mode.
4.2.6 CAL. mode
This mode is used during calibration of the weight indication. The display shows the actual
gross weight. The weight indication is indicated in gram, kg or ton depending on the se-
lected weighing parameters (”Unit” , ”dPno” and ”div”). If the MCE2029 analog module
detects a situation that results in a status code indication different from 0, the display will
show the status code as “-xxxx-“ instead of the weight indication, and it will output its
maximum value (20mA or 10V) on its analog output for the duration of this situation.
Calibration of the gross weight to match the calibration load entered in ”CAL.L.” mode is
performed by pressing ”Enter”, if the correct password has been selected. The complete
calibration procedure for calibration is described later.
4.2.7 CAL.F. mode
This mode is used during reading/adjustment of the calibration factor. The calibration fac-
tor is changed after each performed calibration and should be noted so that it is possible to
re-establish the calibration. The calibration factor can be changed directly if the correct
password is selected. The calibration factor lays in the interval 104858 to 943718 with
524288 as the standard calibration factor (corresponding to no calibration). By changing
the calibration factor within this interval it is possible to change the weight indication with
±80%. The procedure for calibration is described below.

Instruction Manual IM-TE91K010-EN1 Page 9
Weighing system UltraPure analogue
Version: 2009-11-09, rev.: 1
4.2.8 N.Lc. mode
This mode is used during installation to indicate the number of load cells (1-8) connected
to the MCE2029 module. As an example, the ”n.Lc.” parameter should be 1 in a system
consisting of a three legged tank, where only one corner contains a load cell. Note that
changing the ”n.Lc.” parameter will clear the ”SP. 1” , ”SP. 2” , ”An.SP.” and the
”CAL.L.” parameters. If a change is made to this parameter, it may be necessary to turn
the power off and on for the change to take effect.
4.2.9 N.Crn. mode
This mode is used during installation to indicate the number of corners (supporting points)
(1-8). Note that it is the total number of supporting points including corners supported by
load cells. As an example, the ”n.Crn.” parameter should be 3 in a system consisting of a
three legged tank. Note that changing the ”n.Crn.” parameter will clear the ”SP. 1” , ”SP.
2” , ”An.SP.” and the ”CAL.L.” parameters.
4.2.10 Int.PEr. mode
This mode is used during installation to indicate the integration period (40ms, 100ms,
200ms, 400ms, 1000ms, 2000ms or 4000ms). This determines the time over which the load
cell(s) are sampled to determine a new weight reading, and thereby how often the analog
output signal is updated.
4.2.11 Unit mode
This mode is used during installation to select the desired unit used when presenting
weight indications in the display. The unit can be set to gram, kg or ton. Note that changing
the ”Unit” parameter will clear the ”SP. 1” , ”SP. 2” , ”An.SP.” and the ”CAL.L.” para-
meters.
4.2.12 dPno mode
This mode is used during installation to select the desired decimal point position used
when presenting weight indications in the display. The decimal point position specifies the
number of digits following the decimal point, and it can be selected from a range of prede-
fined values. Note that changing the ”dPno” parameter will clear the ”SP. 1” , ”SP. 2” ,
”An.SP.” and the ”CAL.L.” parameters.
4.2.13 div mode
This mode is used during installation to select the desired resolution used when presenting
weight indications in the display. The resolution (or division) can be selected from a range
of predefined values. Note that changing the ”div” parameter will clear the ”SP. 1” , ”SP.
2” , ”An.SP.” and the ”CAL.L.” parameters.
4.2.14 SP. 1 and SP. 2 mode
This mode is used to set the two set points (SP1 and SP2) that are used for controlling the
two level alarms implemented on digital outputs OUT1 and OUT2 as described later. The
set points are indicated in gram, kg or ton depending on the selected weighing parameters
(”Unit” , ”dPno” and ”div”).