Ascon Tecnologic - KM2 Line - ENGINEERING MANUAL - PAG. 5
5. CONFIGURATION PROCEDURE
5.1 Introduction
When the instrument is powered, it starts immediately to work
according to the parameters values loaded in its memory.
The instrument behaviour and its performance are governed
by the value of the stored parameters.
At the first start up the instrument uses a “default” parameter
set (factory parameter set); this set is a generic one (e.g. a
TC J input is programmed).
m
Before connecting the output actuators
,
we recommend to configure the parameters to suit
your application (e.g.: input type, Control strategy,
alarms, etc.).
m
Do not change the parameter
[5] Unit
(Engineering
Unit) during process control; the instrument scales the
measurement (and the variables) but does not modify
the value of the parameters related to the display.
To change these parameters you need to enter the
“Configuration mode”.
5.2 Instrument behaviour at Power ON
At power ON the instrument can start in one of the following
mode depending on its configuration:
Auto mode
without program functions.
–
The upper display will show the measured value;
–
The lower display will show the Set Point value;
–
The decimal figure of the less significant digit of the lower
display is OFF;
–
The instrument is performing the standard closed loop control.
Manual mode
(oPLo).
–
The upper display shows the measured value;
–
The lower display shows the power output [preceded by
H
(for heating) or
C
(for cooling)]. The MAN LED is lit;
–
The instrument does not perform Automatic control;
–
The control output can be: equal to 0 or equal to the value
assigned to it before the power down. In any case, it can
be manually modified by
and
buttons.
Stand by mode
(St.bY).
–
The upper display will show the measured value;
–
The lower display will show alternately the Set Point value
and the message
St.bY
or
od
;
–
The instrument does not perform any control (the control
outputs are OFF);
–
The instrument is working as an indicator.
Auto mode
with automatic program start up.
–
The upper display will show the measured value
–
The lower display will show one of the following information;
•
The operative Set Point (when it is performing a ramp)
•
The time of the segment in progress (when it is perform-
ing a soak);
•
The Set Point value alternate with the message
St.bY
;
–
In all cases, the decimal figure of the less significant digit
of the lower display is lit.
We define all the above described conditions as “
Standard
Display
”.
5.3
Entering the “Configuration modes”
The instrument has a complete parameter set that allows the
user to “adapt” the controller to the destination application.
Note:
The instrument normally shows only the parameters
consistent with the specific hardware and in accordance
with the value assigned to the previous parameters
(e.g.: if you set an output as “not used” the instrument
will mask all other parameters related to that output).
5.3.1 Complete configuration procedure
The configuration parameters are collected in various
groups. Every group defines all parameters related with a
specific function (e.g.: control, alarms, output functions).
1.
Push the
button for more than 5 seconds. The upper
display will show
PASS
while the lower display will show
0
.
2.
Using
and
buttons set the programmed password.
Notes: 1.
The factory default password for configuration
parameters is equal to 30.
2.
During parameter modification the instrument con-
tinue to perform the control. In certain conditions,
when a configuration change can produce a heavy
bump to the process, it is advisable to temporarily
stop the controller from controlling during the pro-
gramming procedure (control output will be OFF).
A password equal to 2000 + the programmed
value (e.g. 2000 + 30 = 2030).
The control will restart automatically when the
configuration procedure will be manually closed.
3.
Push the
button.
If the password is correct the display will show the acronym
of the first parameter group preceded by the symbol:
]
.
In other words the upper display shows:
]inp
(group of the
Input parameters
).
The instrument is in configuration mode.
5.3.2 How to exit the “Configuration mode”
Push
button for more than 5 seconds, the instrument will
come back to the “standard display”.
5.4 Keyboard functions during
parameter changing
A short press allows to exit from the current parameter
group and select a new parameter group.
A long press allows you to close the configuration
parameter procedure (the instrument will come back
to the “standard display”).
When the upper display is showing a group and the
lower display is blank, this key allows to enter in the
selected group.
When the upper display is showing a parameter and
the lower display is showing its value, this key allows
to store the selected value for the current parameter
and access the next parameter within the same group.
Allows to increase the value of the selected parameter.
Allows to decrease the value of the selected parameter.
+
These two keys allow to return to the previous
group. Proceed as follows:
Push the
button and maintaining the pressure,
then push the
button; release both the buttons.
Note:
The group selection is cyclic as well as the selection
of the parameters in a group.
