Ditel Kosmos series User manual

2RE-4RE
4OP-4OPP
C
ODE
:
3072
7
012
EDI
TIO
N:
04
-
0
9
-
200
6
INSTRUCTIONS MANUAL
SETPOINT OUTPUT OPTION
2RE-4RE
4OP-4OPP
C
ODE
:
3072
7
012
EDI
TIO
N:
04
-
0
9
-
200
6
INSTRUCTIONS MANUAL
SETPOINT OUTPUT OPTION

2
2
INTRODUCTION TO THE KOSMOS SERIES
This manual does not constitute a formal agreement.
All information given in this manual is subject to
change without notice.
The ser
ie KOSMOS brings a new philosophy in digital panel
instr umentation by using multipurpose, modular-
concept
devices providing a rich array of basic functions and
advanced cap a bilities.
With a fully MODULAR DESIGN, it is possible to implement a
wide variety of applications simply by adding the desired
option(s).
Built -
in intelligence allows the meter to recognize the options
in
stalled and implement the necessary parameters to properly
function within desired parameters. The basic instrument
without output op
tions omits these data in the program
ro u tines.
CALIBRATION is performed at the factory eliminating the
need for adjustment potentiometers. Any circuit or option
liable to be adjusted incorporates a memory where calibration
parameters are stored, making it possible the optional cards
be totally interchangeable without need of any subsequent
adjustments.
Custom CONFIGURATION for specific applications can be
made quickly and easily through three or five front panel
keys, following structured choice menus aided by display
prompts at each programming step.
Other features of the KOSMOS family incl ude :
CONNECTIONS via plug - in terminal blocks without
screws and CLEMP - WAGO clips cable retention system.
DIMENSIONS
Models ALPHA & BETA 96x48x120 mm DIN 43700
Models JUNIOR, JUNIOR20, & MICRA 96x48x60 mm DIN
43700
CASE MATERIAL UL - 94 V0 - rated poly - carbonate.
PANEL INSTALLATION by means of single part
fingertip without screws.
To guarantee the meter s technical specifications, its is advised
to check calibration parameters at periodical intervals according
to the ISO9001 stand ards for the particular application
operating criteria.
Re - calibration of the meter should be made at the factory or in
a qualified laboratory.
INTRODUCTION TO THE KOSMOS SERIES
This manual does not constitute a formal agreement.
All information given in this manual is subject to
change without notice.
The serie KOSMOS brings a new philosophy in digital panel
instr umentation by using multipurpose, modular-
concept
devices providing a rich array of basic functions and
advanced cap a bilities.
With a fully MODULAR DESIGN, it is possible to implement a
wide variety of applications simply by adding the desired
option(s).
Built -in intelligence allows the meter to
recognize the options
in
stalled and implement the necessary parameters to properly
function within desired parameters. The basic instrument
without output options omits these data in the program
ro u tines.
CALIBRATION is performed at the factory eliminati ng the
need for adjustment potentiometers. Any circuit or option
liable to be adjusted incorporates a memory where calibration
parameters are stored, making it possible the optional cards
be totally interchangeable without need of any subsequent
adjustmen ts.
Custom CONFIGURATION for specific applications can be
made quickly and easily through three or five front panel
keys, following structured choice menus aided by display
prompts at each programming step.
Other features of the KOSMOS family include :
CONNECTIONS via plug - in terminal blocks without
screws an d CLEMP - WAGO clips cable retention system.
DIMENSIONS
Models ALPHA & BETA 96x48x120 mm DIN 43700
Models JUNIOR, JUNIOR20, & MICRA 96x48x60 mm DIN
43700
CASE MATERIAL UL - 94 V0 - rated poly - carbonate.
PANEL INSTALLATION by means of single part
fingerti p without screws.
To guarantee the meter s technical specifications, its is advised
to check calibration parameters at periodical intervals according
to the ISO9001 standards for the particular ap plication
operating criteria.
Re - calibration of the meter should be made at the factory or in
a qualified laboratory.

OUTPUT OPTIONS
2RE 4RE 4OP 4OPP
OUTPUT OPTIONS
2RE 4RE 4OP 4OPP
3
3
INDEX
1 . GENERAL INFORMATION SETPOINTS OPTION. ................................................................................................................ 4
2 . SETUP AND CONNECTIONS
2.1 - INSTALLATION ............................................................................................................................................ 5
2.2 - CONNECTION ........................................................................................................................................... 6-7
2.3 TECHNICAL SPECIFICATIONS ...................................................................................................................... 7
3 . MODE OF WORKING
3.1 INDEPENDENT SETPOINTS ....................................................................................................................... 8-9
3.2 ASSOCIATED SETPOINTS ............................................................................................................................ 9
3.3 AUTO - TRACK ............................................................................................................................................ 10
4 . PROGRAMMING
4.1. MODELS MICRA ............................................................................................................... 11 - 12 - 13 - 14 - 15 - 16
4.2. MODELS ALPHA ............................................................................................................... 17 - 18 - 19 - 20 - 21 - 22
4.2. MODEL BETA - M ........................................................................................... 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32
INDEX
1 . GENERAL INFORMATION SETPOINTS OPTION. ................................................................................................................ 4
2 . SETUP AND CONNECTIONS
2.1 - INSTALLATION ............................................................................................................................................ 5
2.2 - CONNECTION ........................................................................................................................................... 6-7
2.3 TECHNICAL SPE CIFICATIONS ...................................................................................................................... 7
3 . MODE OF WORKING
3.1 INDEPENDENT SETPOINTS ....................................................................................................................... 8-9
3.2 ASSOCIATED SETPOINTS ............................................................................................................................ 9
3.3 AUTO - TRACK ............................................................................................................................................ 10
4 . PROGRAMMING
4.1. MODELS MICRA ............................................................................................................... 11 - 12 - 13 - 14 - 15 - 16
4.2. MODELS ALPHA ............................................................................................................... 17 - 18 - 19 - 20 - 21 - 22
4.2. MODEL BETA - M ........................................................................................... 23 - 24 - 25 - 26 - 27 - 28 -29- 30 - 31 - 32

4
4
An option of 2 or 4 SETPOINTS, programmable within the full
display range, can be incorporated to the unit thus providing
alarm and control capabilities by means of individual LED
indicators and relay or transistor outputs.
All the setpoints provide independently programmable value,
time delay (in seconds), asymmetrical or symetrical hysteresis
(in counts of display) and selectable HI/LO acting.
The setpoints are also configurable to activate independently
(each one activates at its corresponding programmed value) or
tracking one another (setpoint 2 can be conditioned by the
action of setpoint 1, setpoint 4 by setpoint 3). Such latter
function is included in the programming menus with the name
of "TRAC" and, in case of the setpoint 2, it can be manual or
automatic.
The setpoint option consists of a plug - in additional card that
once installed to the meter's main board, activates its own
programming module. The setpoints programming may be
locked out by means of DIP - switches located on the main
board to prevent from accidental or unauthorized changes.
The available alarm/setpoint output options are the following:
2RE: 2 SPDT relays rated 8A
4RE: 4 SPST relays rated 5A*
4OP : 4 isolated open - collector transistors NPN
4OPP : 4 isolated open - coll ector transistors PNP
These type of outputs, capable of carrying out a wide variety
of control operations and processing of limit values, increases
notably the unit's performance qualities thanks to the
possibility of combining basic alarm functions with advanced
safety and control applications.
* from nº O5397
1.
SETPOINTS OPTION
An option of 2 or 4 SETPOINTS, programmable within the full
display range, can be incorporated to the unit thus providing
alarm and control capabilities by means of individual LED
indicators and relay or transistor outputs.
All the setpoints provide independently programmable value,
time delay (in secon ds), asymmetrical or symetrical hysteresis
(in counts of display) and selectable HI/LO acting.
The setpoints are also configurable to activate independently
(each one activates at its corresponding programmed value) or
tracking one another (setpoint 2 ca n be conditioned by the
action of setpoint 1, setpoint 4 by setpoint 3). Such latter
function is included in the programming menus with the name
of "TRAC" and, in case of the setpoint 2, it can be manual or
automatic.
The setpoint option consists of a plug - in additional card that
once installed to the meter's main board, activates its own
programming module. The setpoints programming may be
locked out by means of DIP - switches located on the main
board to prevent from accidental or unauthorized changes.
The available alarm/setpoint output options are the following:
2RE: 2 SPDT relays rated 8A
4RE: 4 SPST relays rated 5A*
4OP : 4 isolated open - collector transistors NPN
4OPP : 4 isolated open - collector transistors PNP
These type of outputs, capable of carrying out a wide variety
of control operations and processing of limit values, increases
notably the unit's performance qualities thanks to the
possibility of combining basic alarm functions with advanced
safety and control applications.
* from nº O5397
1.
SETPOINTS OPTION

2. SETUP AND CONNECT
IONS
2. SETUP AND CONNECT
IONS
5
5
2.2 INSTALLATION
Lift out the electronics assembly from the case and use a
screw - driver to push on the junctions between the case and
the shadow areas to detach them from the case. See fig1.
The so performed orifice will allow any of the setpoints
board output connectors be brought out at the rear of the
instrument.
The option is installed by plugging the
connector in the main board location as shown
in fig. 2 .
Insert the card pin in the corresponding main board
slot (see figure) and push down to attach both connectors.
If the instrument is to be installed in high vibrating
environments, it is recommended to solder the card to the
main board making use of the copper tracks on both sides of
the card pin and around the main board hole on its sold er
side.
Before inserting the electronics in the case, you should
verify that the access to the setpoints programming module
is enabled, as this is the first operation to be made once the
instrument is powered up.
MI
CRAs
ALPHA/ BETA
2RE
-
4RE
4OP
-
4OPP
fig. 2
2.1 INSTALLATION
Lift out the electronics assembly from the case and use a
screw - driver to push on the junctions between the case and
the shadow areas to detach them from the case. See fig1.
The so performed orifice will allow any of the setpoints
board output connectors be brought out at the rear of the
instrument.
The option is installed by plugging the
connector in the main board location as shown
in fig. 2 .
Insert the card pin in the corresponding main board
slot (see figure) and push down to attach both connectors.
If the instrument is to be installed in high vibrating
environments, it is recommended to solder the card to the
main board making use of the copper tra cks on both sides of
the card pin and around the main board hole on its solder
side.
Before inserting the electronics in the case, you should
verify that the access to the setpoints programming module
is enabled, as this is the first operation to be ma de once the
instrument is powered up.
MICRAs
ALPHA/ BETA
2RE
-
4RE
4OP
-
4OPP
fig. 2

6
9
6
2.2 - CONNECTION
NOTE : In case that the outputs are used to drive inductive
loads, it is recommended to add an RC network between the
coil terminals (preferably) or between the relay contacts to
limit electromagnetic effects.
LCIA - 01 - 2 RELAYS OPTION
PIN 4 = N. Open 2 PIN 1 = N. Open 1
PIN 5 = COMMON 2 PIN 2 = COMMON 1
PIN 6 = N. Closed 2 PIN 3 = N. Closed 1
LCIA - 02 - 4 RELAY OPTION
PIN 4 = RL4 PIN 1 = RL1
PIN 5 = Non connected PIN 2 = RL2
PIN 6 = COMMON PIN 3 = RL3
LCIA - 03 - 4 OPTOS NPN OPTION
PI N 4 = OP4 PIN 1 = OP1
PIN 5 = Non connected PIN 2 = OP2
PIN 6 = COMMON PIN 3 = OP3
LCIA - 04 - 4 OPTOS PNP OPTION
PIN 4 = OP4 PIN 1 = OP1
PIN 5 = Non connected PIN 2 = OP2
PIN 6 = COMMON PIN 3 = OP3
Fig. 6.1: Rear view of basic
instrumment with Relay / Opto
output option.
Fig. 6.2: Connection diagram
for 2RE
Fig. 6.3: Connection diagram
for 4RE
Fig. 6.4: Connection diagram
for 4OP
Fig. 6.5: Connection diagram
for 4OPP
COMMON
COMMON
COMMON
RELAY
1
RELAY 2
RELAY 4
RELAY
1
RELAY
2
RELAY
1
3
2
C N 6 C N 7
4
6
5
2.2 - C ONNECTION
NOTE : In case that the outputs are used to drive inductive
loads, it is recommended to add an RC network between the
coil terminals (preferably) or between the relay contacts to
limit electromagnetic effects.
LCIA - 01 - 2 RELAYS OPTION
PIN 4 = N. Open 2 PIN 1 = N. Open 1
PIN 5 = COMMON 2 PIN 2 = COMMON 1
PIN 6 = N. Closed 2 PIN 3 = N. Closed 1
LCIA - 02 - 4 RELAY OPTION
PIN 4 = RL4 PIN 1 = RL1
PIN 5 = Non connected PIN 2 = RL2
PIN 6 = COMMON PIN 3 = RL3
LCIA - 03 - 4 OPTOS NPN OPTION
PIN 4 = O P4 PIN 1 = OP1
PIN 5 = Non connected PIN 2 = OP2
PIN 6 = COMMON PIN 3 = OP3
LCIA - 04 - 4 OPTOS PNP OPTION
PIN 4 = OP4 PIN 1 = OP1
PIN 5 = Non connected PIN 2 = OP2
PIN 6 = COMMON PIN 3 = OP3
Fig. 6.1: Rear view of basic
instrumment with Relay / Opto
output option.
Fig. 6.2: Connection diagram
for 2RE
Fig. 6.3: Connection diagram
for 4RE
Fig. 6.4: Connection diagram
for 4OP
Fig. 6.5: Connection diagram
for 4OPP
COMMON
COMMON
COMMON
RELAY
1
RELAY 2
RELAY 4
RELAY
1
RELAY
2
RELAY
1
3
2
C N 6 C N 7
4
6
5

7
7
2.3 TECHNICAL SPECIFICATIONS
2RE OPTION
Max. current (resistive load) .................................... 8 A
Max. Power ........................................ 2000 V @ 192 W
Max. Voltage ................................ . 250 V AC/ 150 V DC
Contact resistance ...................................... max. 3 m
Switching time .......................................... max. 10 ms
4RE OPTION
Max. current (resistive load) .................................... 5 A
Max. Power ........................................ 1 25 0 V A/ 1 5 0 W
Max. Voltage ................................ .2 77 V AC/ 125 V DC
Contact resistance .................................... max. 3 0 m
Switching tim e .......................................... max. 10 ms
4OP OPTION
Max. Voltage ................................................... 50 V DC
Max. current ..................................................... 50 mA
Leakage current ..................................... 100 A (max.)
Switching time .......................................... 1 ms (max.)
4OPP OPTION
Max. Voltage ................................................... 50 V DC
Max. current ..................................................... 50 mA
Leakage current ..................................... 100 A (max.)
Switching time .......................................... 1 ms (max.)
All options are opto-
isolated with respect to the input
signal and main supply.
CONNECTORS
To perform wiring connections, remove
the terminal block from the meter's
connector, strip the wire leaving
from 7 to 10mm exposed and insert it
into the proper term inal while pushing the
fingertip down to open the clip inside
the connector as indicated in the figure.
Proceed in the same manner with all pins and plug the
terminal block into the corresponding meter's connector.
Each terminal can admit cables of sect
ion comprised between
0.08mm² and 2.5mm² (AWG 26 ÷ 14).
The blocks provide removable adaptors into each terminal to
allow proper fastening for cable sections of <0.5 mm².
INSTALLATION
To meet the requirements of the directive EN61010 -
1, where
the unit is permanently connected to the mains supply it is
obligatory to
install a circuit breaking device easy reachable
to the operator and clearly marked as the disconnect device.
WARNING
In order to guarantee electromagnetic compatibility, the
following guidelines for cable wiring must be followed:
- Power supply wires must b
e routed separated from
signal wires. Never
run power and signal wires in the
same conduit.
-
Use shielded cable for signal wiring and connect the
shield to ground of the indicator (pin2 CN1).
- The cable section must be 0.25 mm
I f not installed and used ac
cording to these
instructions, protection against hazards may be
impaired.
2.3 TECHNICAL SPECIFICATIONS
2RE OPTION
Max. current (resistive load) ................................... 8 A
Max. Power ........................................ 2000 V @ 192 W
Max. Voltage ................................ . 250 V AC/ 150 V DC
Contact resistance ...................................... max. 3 m
Switching time ........................................... max. 10 ms
4RE OPTION
Max. current (resistive load) ................................... 5 A
Max. Power ........................................ 1 25 0 V A/ 1 5 0 W
Max. Voltage ................................ . 2 77 V AC/ 1 25 V DC
Cont act resistance ..................................... max. 3 0 m
Switching time ........................................... max. 10 ms
4OP OPTION
Max. Voltage ................................................... 50 V DC
Max. current ..................................................... 50 mA
Leakage current ..................................... 100 A (max.)
Switching time .......................................... 1 ms (max.)
4OPP OPTION
Max. Voltage ................................................... 50 V DC
Max. current ..................................................... 50 mA
Leakage current ..................................... 100 A (max.)
Switching time .......................................... 1 ms (max.)
All options are opto-
isolated with respect to the input
signal and main supply.
CONNECTORS
To perform wiring connections, remove
the terminal block from the meter's
connector, strip the wire leaving
from 7 to 10mm exposed and insert it
into the proper terminal while pushing the
fingertip down to open the clip inside
the connector as indicated in the figure.
Proceed in the same manner with all pins and plug the
terminal block into the corresponding meter' s connector.
Each terminal can admit cables of section comprised between
0.08mm² and 2.5mm² (AWG 26 ÷ 14).
The blocks provide removable adaptors into each terminal to
allow proper fastening for cable sections of <0.5 mm².
INSTALLATION
To meet the requirements of the directive EN61010 -
1, where
the unit is permanently connected to the mains supply it is
obligatory to install a circuit breaking device easy reachable
to the oper ator and clearly marked as the disconnect device.
WARNING
In order to guarantee electromagnetic compatibility, the
following guidelines for cable wiring must be followed:
-
Power supply wires must be routed separated from
signal wires. Never run power and si
gnal wires in the
same conduit.
-
Use shielded cable for signal wiring and connect the
shield to ground of the indicator (pin2 CN1).
- The cable section must be 0.25 mm
I f not installed and used according to these
instructions, protection against hazards ma
y be
impaired.

3
. METHODS OF OPERAT
ION
3
. METHODS OF OPERAT
ION
8
8
DESCRIPTION OF OPERATION
All the setpoints can operate independently or in association
with another in a variety of combinations to suit specific
operating conditions.
3.1 INDEPENDENT SETPOINTS.
As programmed like independent setpoints, the alarm
outputs activate when the display value reaches the user -
programmed value. The independent al arms programming
requires definition of the following basic parameters :
a. HI/LO ACTING MODE.
In HI mode, the output activates when the display rises
above the setpoint level and in LO mode, the output
activates when the display falls below the setpoint .
b. PROGRAMMABLE TIME DELAY or HYSTERESIS.
Each output action can be deferred by a programmable time
delay or hysteresis level.
The time delay is the time that takes the output to activate
after passing through the setpoint in the up or down
direction, while the hysteresis band can be selected
asymmetrical (only acts on the output deactivation edge) or
symmetrical (operates on both sides of the setpoint).
The time delay can be set from 0 to the maximum
displayable value in seconds and can have a decimal place.
The hysteresis can be programmed, in counts, within the full
display range. The decimal point appears in the same
position as programmed in the display configuration module.
The figures 1 and 2 show the ti
me delay action (dly) and the
asymmetrical hysteresis action (hys-
1) of two alarms (SET1
and SET2) programmed to activate in HI mode (OUT1) and
in LO mode (OUT2).
Fig. 1 Delay action (dly)
Fig. 2 Asymmetrical hysteresis
DESCRIPTION OF OPERATION
All the setpoints can operate independently or in association
with another in a variety of combinations to suit specific
operating conditions.
3.1 INDEPENDENT SETPOINTS.
As programmed like independent setpoints, the alarm
outputs activate when the display value reaches the user -
programmed value. The independent alarms programming
requires definition of the following basic parameters :
a. HI/LO ACTING MODE.
In HI mode, t he output activates when the display rises
above the setpoint level and in LO mode, the output
activates when the display falls below the setpoint.
b. PROGRAMMABLE TIME DELAY or HYSTERESIS.
Each output action can be deferred by a programmable time
delay or hysteresis level.
The time delay is the time that takes the output to activate
after passing through the setpoint in the up or down
direction, while the hysteresis band can be selected
asymmetrical (only acts on the output deactivation edge) or
symmetri cal (operates on both sides of the setpoint).
The time delay can be set from 0 to the maximum
displayable value in seconds and can have a decimal place.
The hysteresis can be programmed, in counts, within the full
display range. The decimal point appears i n the same
position as programmed in the display configuration module.
Fig. 1 Delay action (dly)
Fig. 2 Asymmetrical hysteresis

9
9
The figure 1 shows the action of the symmetrical hysteresis.
In order to clarify the drawing, it has been represented one
only alarm in the cases of HI and LO acting. The 100% of
the programmed hysteresis (hys - 2) is added to each side of
the setpoint, thus creating a band around the setpoint within
which the output is activated (mode HI) or deactivated
(mode LO). This band can be as large as twice the maximum
number of counts of the display.
The hold up of the alarm action by mean
s of this type of
hysteresis can be useful in operations in which it is necessary
to keep the alarm condition between two specified points.
As an example, let's suppose that it is wanted to control a
quantity composed of two other in proportion of 1000 an
d
2000kg. By programming the first setpoint at 500 with hys-
2
= 500 and the second setpoint at 2000 with hys-
2 = 1000,
the alarm output should control the first quantity from 0 to
1000 and the second quantity from 1000 to 3000.
3.2 ASSOCIATED SETP OINTS
The SET2 and SET4 setpoints can be programmed to "track"
SET1 and SET3 respectively. This type of alarms does not
activate as compared with a preprogrammed display value
but at a programmable fixed distance from the activation of
their pre - alarms.
Th e programming of these alarms requires to determine first
the pre - alarm setpoint value (for example SET1 = 200).
Then, instead of programming the SET2, it is assigned an
offset between this and the first alarm (for example TRACK2
= 50). Although SET1 is ch anged, the alarm 2 (if not
changed) will always activate 50 counts above SET1. If a
negative tracking value should have been programmed ( -
50), the alarm 2 would activate 50 counts below the SET1.
The figure .2. shows an example of positive (TRACK2) and
neg ative tracking (TRACK4).
Fig 1. Symmetrical hyste
resis
Fig 2. Tracking setpoints
The figure 1 shows the action of the symmetrical hysteresis.
In order to clarify the drawing, it has been represented one
only alarm in the cases of HI and LO acting. The 100% of
the programmed hysteresis (hys - 2) is added to each side of
the setpoint, th us creating a band around the setpoint within
which the output is activated (mode HI) or deactivated
(mode LO). This band can be as large as twice the maximum
number of counts of the display.
The hold up of the alarm action by means of this type of
hyster
esis can be useful in operations in which it is necessary
to keep the alarm condition between two specified points.
As an example, let's suppose that it is wanted to control a
quantity composed of two other in proportion of 1000 and
2000kg. By programming the first setpoint at 500 with hys-
2
= 500 and the second setpoint at 2000 with hys-
2 = 1000,
the alarm output should control the first quantity from 0 to
1000 and the second quantity from 1000 to 3000.
3.2 ASSOCIATED SETPOINTS
The SET2 and SET4 setpoints can be programmed to "track"
SET1 and SET3 respectively. This type of alarms does not
activate as compared with a preprogrammed display value
but at a programmable fixed distance from the activation of
their pre - alarms.
The programming of these a larms requires to determine first
the pre - alarm setpoint value (for example SET1 = 200).
Then, instead of programming the SET2, it is assigned an
offset between this and the first alarm (for example TRACK2
= 50). Although SET1 is changed, the alarm 2 (if n ot
changed) will always activate 50 counts above SET1. If a
negative tracking value should have been programmed ( -
50), the alarm 2 would activate 50 counts below the SET1.
The figure .2. shows an example of positive (TRACK2) and
negative tracking (TRACK4).
Fig 1. Symmetrical hysteresis
Fig 2. Tracking setpoints

10
10
3.3 AUTO - TRACK
In some measurement systems and particularly in
weighing and dosage applications, the mechanical parts and
the system structure makes it impossible to shut off
operations at a given point (due to response times, weight in
fly ...) this causing an extra quantity of material be settled
after the interrupting actio n.
As an application example of the "AUTO TRACK"
function, let's comment the effect known as "weight in fly".
The "weight in fly" effect is produced in those systems in
which some kind of recipient is to be filled with a
preprogrammed quantity of materia l. Each time this quantity
is reached, an alarm output stops the filling mechanism.
However, the quantity of material which is still on air at the
moment of shutting off the process, is deposited in the
recipient exceeding from the desired measure.
The a utomatic track function (AUTO TRAC) is
specially designed to compensate for this out of limit
quantity.
This function is based on controlling the quantity in which
the programmed limit is surpassed and using this excess to
activate the shut off signal so
that, including the out of limit
quantity, the final measure suits the desired value.
Only the alarm 2 provides automatic track function. The auto
tracking is implemented by programming SET1 for the
desired lim it value and SET2 for "AUTO TRAC" opera - tion
(initially it takes the same value as SET1).
SET1 = Desired setpoint value
SET2 = AUTO TRAC
When, despite the alarm that shuts off the process
activates, still a little quantity of material exceeding fro m
SET1 is deposited, the excess is registered in the peak
memory as "TRAC" value and subtracted from SET2.
This way, in successive measurements the output of
SET2 will take charge of interrupting the operations one
moment before the display reaches the p rogrammed value.
The extra quantity will then complete the measure until the
required level.
We remark that the track value is continuously
updated according to process needs.
3.3 AUTO - TRACK
In some measurement syst ems and particularly in
weighing and dosage applications, the mechanical parts and
the system structure makes it impossible to shut off
operations at a given point (due to response times, weight in
fly ...) this causing an extra quantity of material be set tled
after the interrupting action.
As an application example of the "AUTO TRACK"
function, let's comment the effect known as "weight in fly".
The "weight in fly" effect is produced in those systems in
which some kind of recipient is to be filled with a
preprogrammed quantity of material. Each time this quantity
is reached, an alarm output stops the filling mechanism.
However, the quantity of material which is still on air at the
moment of shutting off the process, is deposited in the
recipient exceeding from the desired measure.
The automatic track function (AUTO TRAC) is
specially designed to compensate for this out of limit
quantity.
This function is based on controlling the quantity in which
the programmed limit is surpassed and using this excess to
activate the shut off signal so that, including the out of limit
quantity, the final measure suits the desired value.
Only the alarm 2 provides automatic track function. The auto
tracking is implemented by pro gramming SET1 for the
desired limit value and SET2 for "AUTO TRAC" opera - tion
(initially it takes the same value as SET1).
SET1 = Desired setpoint value
SET2 = AUTO TRAC
When, despite the alarm that shuts off the process
activates, still a little q uantity of material exceeding from
SET1 is deposited, the excess is registered in the peak
memory as "TRAC" value and subtracted from SET2.
This way, in successive measurements the output of
SET2 will take charge of interrupting the operations one
moment before the display reaches the programmed value.
The extra quantity will then complete the measure until the
required level.
We remark that the track value is continuously
updated according to process needs.