Ascon tecnologic KM3-L User Manual

Ascon Tecnologic - KM3 - L - ENGINEERING MANUAL - PAG. 11
3. Set [139] A.L.P = 10 (low working point) and [51] A.L.o = -1
(it is the difference between the reading of the instrument
and the reading of the reference system). Note that after
this set the measured value of the instrument is equal to
the measured value of the reference system.
4. Set a set point equal to the maximum value of the
operative range (e.g. 100°C). When the temperature
in the chamber is steady, take note of the temperature
measured by the reference system (e.g. 98°C).
5. Set [141] A.H.P = 100 (low working point) and [53] A.H.o = +2
(it is the difference between the reading of the instrument
and the reading of the reference system). Note that after
this set the measured value of the instrument is equal to
the measured value of the reference system.
AH.P 100°C
AH.o = 2
AL.o = -1
AH.P 10°C
Real curve
Modified curve
The most important step of the confi guration procedure is
completed.
In order to exit from confi guration parameter procedure,
proceed as follows:
• Push
button.
• Push button for more than 3 s. The instru-
ment will come back to the “standard display”.
6. OPERATIVE MODES
The TC10L is an FM (both FM3545 and FM3810) approved
limit controller that can be confi gured either as a high limit or
as a low limit controller by the user.
The relay of the output 2 operates in fail-safe mode (relay
de-energized during shutdown condition) and latching mode.
The OUT 2 turns OFF (in this document this condition will be
named shoutdown) when:
The instrument is confi gured as a high limiter (Hi.Lo = Hi)
and the measured value is greater than limiter threshold
[“SP” parameter] or
The instrument is confi gured as a low limiter (Hi.Lo = Lo)
and the measured value is less than limiter threshold.
The Out 2 remains OFF until the condition which generated
the shutdown, no longer exists and the Confi rming action
(rearm) has been performed.
The Confi rming action (rearm) can be performed by pressing
the
key or by momentarily closing the digital input (by an
external dry contact) and it will be accepted only when the
condition, which generated the shutdown, no longer exists.
We defi ne also that the time duration of the shutdown
condition stored by the instrument will be the time from Out
2 goes OFF (shutdown start) and the condition that generate
the shutdown no longer exists.
The confi rmation action is not part of this time count.
The time duration of the shutdown condition and max/min
measured values are stored in memory and available for
viewing (see “Normal Display Mode”) until the next shutdown
condition occurs.
These informations are lost at power down.
High limit control
When a measured value (PV) exceeds a set point
(SP),“EXCEEDED” [EX]lamp lights, “OUT” lamp turns ON
and the limit output relay (Out 2) is de-energized.
“EXCEEDED” [EX] lamp turns off when PV goes into normal
condition, while the output [OUT] display lamp stays on as
it is (b). The output [OUT] display lamp turns off when a
confi rming operation (rearm) is done by an operator.
The way to confi rm are:
pressing
key or by DI1 (according to the <<diS>>
parameter setting).
The confi rming operation is not accepted during PV exceeds
SP (D) (during EXCEEDED lamp lights*). State of output
relay is de-energized whenever “OUT” lamp is on.

Ascon tecnologic KM3-L Specifications

General

Brand	Ascon tecnologic
Model	KM3-L
Category	Controller
Language	English