Ascon tecnologic KX6 Series Installation and operation manual

Ascon Tecnologic - KX6 Series - ENGINEERING MANUAL -Vr. 0.0 PAG. 1
KX6
CONTROLLER WITH
SERVOMOTOR DRIVE OUTPUT
Engineering Manual
Code : ISTR-MKX6ENG06 - Vr. 0.0 (ENG)
Ascon Tecnologic S.r.l.
Viale Indipendenza 56, 27029 Vigevano (PV) - ITALY
Tel.: [phone]/FAX: [phone]
www.ascontecnologic.com
e-mail: [email protected]
1. OUTLINE DIMENSIONS (mm)
1.1 DIMENSIONS
48 8911
KX6
96
89
1.2 PANEL CUTOUT
65 mm min.
45
+0.6
mm
89
+0.8
mm
113 mm min.
1.3 MOUNTING REQUIREMENTS
This instrument is intended for permanent installation, for
indoor use only, in an electrical panel which encloses the
rear housing, exposed terminals and wiring on the back.
Select a mounting location having the following characteristics:
1. It should be easily accessible;
2. There is minimum vibrations and no impact;
3. There are no corrosive gases;
4. There are no water or other fluids (i.e. condensation);
5. The ambient temperature is in accordance with the
operative temperature (0... 50°C);
6. The relative humidity is in accordance with the instrument
specifications (20... 85%);
The instrument can be mounted on panel with a maximum
thickness of 15 mm.
When the maximum front protection (IP65) is desired, the
optional gasket must be mounted.

Ascon Tecnologic - KX6 Series - ENGINEERING MANUAL - Vr. 0.0 PAG. 2
2. CONNECTION DIAGRAM
Thermocouple
DI1
Out1 (2A)
Out2 (2A)
Out3 (2A)
Out4 (2A)
Analogue Input
RS485
mA
Neutral
100... 240 VAC
100... 240 VAC
24 VAC/VDC
C
NO
NO
C
Phase
1
2
2
1
4
3
6
5
8
7
10
9
12
11
NO
14
13
16
15
18
17
20
19
22
21
24
23
NO
C
IN1
IN2
GND
D-
D+
DI2
Potentiometer
100Ω... 10 kΩ
2.1 GENERAL NOTES ABOUT WIRING
1. Do not run input wires together with power cables.
2. External components (like zener barriers, etc.) connected
between sensor and input terminals may cause errors in
measurement due to excessive and/or not balanced line
resistance or possible leakage currents.
3. When a shielded cable is used, it should be connected at
one point only.
4. Pay attention to the line resistance; a high line resistance
may cause measurement errors.
2.2 INPUTS
2.2.1 Thermocouple Input
1
2
+
_
External resistance: 100Ωmax., maximum error 25 mV.
Cold junction: automatic compensation between 0... 50°C.
Cold junction accuracy: 0.05°C/°C after a warm-up of
20 minutes.
Input impedance: > 1 MΩ.
Calibration: According to EN 60584-1.
Note: For TC wiring use proper compensating cable
preferable shielded.
2.2.2 mA Input
0/4... 20 mA input wiring for passive transmitter
using an external power supply
+
_
+
_
1
2
0/4...20 mA
Passive
transmitter
_
External
PWS
+
Input impedance: < 50W.
0/4... 20 mA input wiring for active transmitter
0/4...20 mA
Active
transmitter +
_
+
_
1
2
Input impedance: < 50W.
2.2.3 Digital Inputs
Note: The instrument needs 150 ms to recognize a contact
status variation;
Digital input 1 driven by dry contact
3
4
Digital
input 1
Maximum contact resistance: 100Ω.
Contact rating: 10 V, 6 mA.
Notes: 1. Logic input 1 is NOT isolated from the measuring
input. A double or reinforced isolation between
logic input 1 and power line must be ensured by
external elements.
2. Do not run logic input wiring together with power
cables.
Digital input 2 driven by 24 VAC/DC or 100... 240 VAC
22
23
24
Digital
input 2
100... 240 VAC
Common
24 VAC/DC
Notes: 1. The isolated DI2 Digital Input must be used
in only one of the two available connections:
• High level input (100... 240 VAC);
• Low level input (24 VDC/AC).
2. The terminals of logic input 2 (high/low level) are
isolated from the measuring input.
In this way, the
instrument itself ensures a double or reinforced isola-
tion between logic input 2 terminals and power line.
2.2.4 Potentiometer input
Safety notes:
Do not run potentiometer input wiring together with power
cables.
13
14
15
Potentiometer
100Ω... 10 kΩ
Input 2
Potentiometer value: From 100Ωto 10 kΩ.

Ascon Tecnologic - KX6 Series - ENGINEERING MANUAL -Vr. 0.0 PAG. 3
2.3 OUTPUTS
Safety notes:
–To avoid electrical shocks, connect power line at last.
–For supply connections use No. 16 AWG or larger wires
rated for at least 75°C.
–Use copper conductors only.
WARNING! Before connecting the output actuators,
we recommend to configure the parameters to
suit your application (e.g.: input type, Control
strategy, alarms, etc.).
2.3.1 Servomotor Output 1 and 2 (OP1 and OP2)
Power
Supply
Close
Open
M
~
5
6
7
OP1
OP2
Contact rating: • 4 A /250 V cosj=1;
• 2 A /250 V cosj=0.4.
Operation: 1 x 105.
2.3.2 Analogue Ouput 1 (OP1)
Current Analogue Output
mA
-
5
6
+
mA output: 0/4... 20 mA, galvanically isolated.
Maximum Load Impedance: 600Ω
Voltage Analogue Output
V
-
5
6
+
V output: 0/2... 10 V, galvanically isolated:
Minimum Load Impedance: 500Ω.
2.3.3 Output 3 and Output 4 (OP3, OP4)
Relay Output
These two output are assigned to Alarm 1 (OP3) and
Alarm 2 (OP4).
NO
9C
NO
Alarm 1
(OP3)
Alarm 2
(OP4)
Load
AC
8
10
Load
Contact rating: • 2 A /250 V cosj= 1;
• 1 A /250 V cosj= 0.4.
Operation: 1 x 105.
2.4 SERIAL INTERFACE
RS-485
D -
D +
GND
17
18
16
D -
D +
GND
D -
D +
GND
D -
D +
GND
Interface type: Isolated (50 V) RS-485;
Voltage levels: According to EIA standard;
Protocol type: MODBUS RTU;
Byte format: 8 bit with no parity;
Stop bit: 1 (one);
Baud rate:
Programmable between 1200... 38400 baud;
Address: Programmable between 1... 255.
Notes: 1. RS-485 interface allows to connect up to 30
devices with one remote master unit.
2. The cable length must not exceed 1.5 km at
9600 baud.
2.5 POWER SUPPLY
Power
Supply
Neutral
Phase
11
12
Supply Voltage: 100... 240 VAC (-15... +10%).
Notes: 1. Before connecting the instrument to the power
line, make sure that line voltage is equal to the
voltage shown on the identification label.
2. The polarity of the power supply has no importance.
3. The power supply input is NOT fuse protected.
Please, provide a T type 1A, 250 V fuse externally.
4. When the instrument is powered by the A01 key,
the outputs are NOT supplied and the instrument
can show the ouLd (Out 4 Overload) indication.

Ascon Tecnologic - KX6 Series - ENGINEERING MANUAL - Vr. 0.0 PAG. 4
3. PANEL DESCRIPTION
KX6
Process Value
(in eng. units)
Autotune
in progress
(flashing)
Programmable
display
(usually shows
the Set Point)
Output
LEDs
Manual
mode
Alarm
active
Eng. Unit
(°C/°F)
Potentio-
meter (*)
Digital
inputs ON
Valve
Open/Close
Valve position
(measured or
theoretical)
*Lit when the instrument is using the potentiometer;
flashes when a potentiomter malfunction is detected.
4. TECHNICAL CHARACTERISTICS
4.1 TECHNICAL SPECIFICATION
Case: Plastic, self-extinguishing degree: V-0 according to UL 94;
Front protection: IP65 (when the optional panel gasket is
mounted) for indoor locations according to EN 60070-1;
Terminals protection: IP20 according to EN 60070-1;
Installation: Panel mounting;
Terminal block: 24 M3 screw terminals for cables of
0.25... 2.5 mm2(AWG22... AWG14) with connection diagram;
Dimensions: 48 x 96 depth 89.15 mm (1.77 x 3.78 x 3.51 in.);
Panel cutout: 45(+0.6) x 89(+0.6) mm [1.78(+0.023) x 3.5(+0.023) in.];
Weight: 160 g max..
Power supply:100... 240 VAC (-15... +10% of the nominal
value);
Power consumption: 5 VA max.;
Insulation voltage: 2300 V rms according to EN 61010-1;
Display updating time: 500 ms;
Sampling time: 130 ms;
Resolution: 30000 counts;
Total Accuracy: ±0.5% F.S.V. ±1 digit @ 25°C of room
temperature;
Electromagnetic compatibility and safety requirements
Compliance: Directive EMC 2004/108/CE (EN 61326-1),
Directive LV 2006/95/CE (EN 61010-1);
Installation category: II;
Pollution category: 2;
Temperature drift: It is part of the global accuracy;
Operating temperature: 0... 50°C (32... 122°F);
Storage temperature: -30... +70°C (-22... +158°F);
Humidity: 20... 85% RH, not condensing.
5. HOW TO ORDER
Power supply
H= 100... 240 VAC
Analogue input + digital input DI1 (standard)
B= J, K, R, S, T, mA
Output 3
R= Relay SPST 2 A (resistive load)
Output 4
R= Relay SPST 2 A (resistive load)
Options (the TTL Modbus port is always present)
-= Not available
C= Potentiometer input + Digital Input 2 + RS 485 Modbus
P= Potentiometer input + Digital Input 2
S= RS 485 Modbus
Model
KX6 -= Valve Controller
Output 1 + Output 2
I- = Output 1: 0/4... 20 mA, 0/2... 10 V; Output 2: Not available
MM= Output 1 + Output 2: Relays for servomotor SPST 2 A
KX6- HB RR

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 5
6. CONFIGURATION PROCEDURE
6.1 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 controlled
by the value of the stored parameters.
At the first start up the instrument will use a “default”
parameter set (factory parameter set); this set is a generic
one (e.g. a TC J input is programmed).
WARNING! Before connecting the output actuators,
we recommend to configure the parameters to
suit your application (e.g.: input type, Control
strategy, alarms, etc.).
WARNING! Do not change the [5] Unit (Engineering Unit)
value during process control as the set point
inserted by the user (thresholds, limits etc.) are
not automatically rescaled by the instrument.
To change these parameters you need to enter the
“Configuration mode”.
6.2 INSTRUMENT BEHAVIOUR AT
POWER ON
At power ON the instrument can start in one of the following
mode depending on its configuration:
Auto mode.
–The upper display will show the measured value;
–The middle display will show the Set point value;
–The lower display will show the valve position (measured
or theoretical according to the control strategy selected).
–The instrument is performing the standard PID control with
servo-motor drive output.
Manual mode (oPLo).
–The upper display shows the measured value;
–The middle display shows the power output [preceded by H
(for heating) or C(for cooling)]. The MAN LED is lit;
–The lower display will show the valve position (measured
or theoretical according to the
selected control ).
–The instrument does not perform Automatic control;
–The control output can be manually modified by and
buttons.
Stand by mode (St.bY).
–The upper display will show the measured value;
–The middle display will show alternately the set point value
and the message St.bY or od;
–The lower display will show the valve position (measured
or theoretical according to the control strategy selected).
–The instrument perform no control at all
(Out 2 [close] is always ON);
–The instrument is working as an indicator.
We define all the above described conditions as
“Standard Display”.
6.3 ENTERING IN THE
“CONFIGURATION MODES”
The configuration mode allows to take advantage of all
instrument features.
The instrument have one complete parameter set indicated as
“Configuration parameter set” (or “Configuration parameters”)
The access to the configuration parameters is protected by a
password.
Note: The instrument shows only those parameters that are
consistent with the hardware and in accordance with the
value assigned to the previous parameters (e.g.: if you
set an Alarm as “not used”, the instrument masks all the
remaining parameters related to this Alarm).
6.3.1 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 middle display shows 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
continue 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
control during programming procedure.
When it is desired to stop the control during
progrmming procedure, use a password equal to
2000 + the programmed value (2000 + 30 = 2030).
The control restarts automatically when the
configuration procedure will be manually closed.
3. Push the button.
If the password is correct the display shows 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.
4. If the password is not correct, the instrument returns to
the Standard Display.
6.4 LEAVING THE “CONFIGURATION MODE”
Pushing the button for more than 5 seconds, the
instrument returns to the “Standard display”.
6.5 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
middle display is blank, this key allows to enter in the
selected group.
When the upper display is showing a parameter and
the middle display is showing its value, this key allows
to store the selected value for the current parameter

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 6
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, then maintaining the pressure
push the button; release both the buttons.
Note: The group selection is cyclic as well as the selection
of the parameters in a group.
6.6 FACTORY RESET - DEFAULT
PARAMETERS LOADING PROCEDURE
It is possible to restore the factory configuration when
required, For example to reset all the parameters after
another use or after a wrongly set configuration.
This action allows to set the instrument in a defined condition
using the default data (typically the same values loaded in the
instrument during it’s production).
To load the factory default parameter set, proceed as follows:
1. Press the button for more than 5 seconds. The upper
display will show PASS while the middle display shows 0;
2. Using and buttons set the value -481;
3. Push button;
4. The instrument will turn OFF all LEDs for a few seconds,
then the upper display will show dFLt (default) and then
all LEDs are turned ON for 2 seconds. At this point the
instrument restarts as for a new power ON.
The procedure is complete.
Note: The complete list of the default parameters is available
in Appendix A.
6.7 OEM DEFAULT
In addition to the “Factory default” these instruments allow
the OEM to store his own default parameter set. In this way
if an end-user tampers the parameter values, the OEM’s
after sales support has a fast and easy way to reset the
machine and return to the proprietary parameter set.
6.7.1 Storing the OEM’s default parameter set
Once the OEM has configured his own paratameter set and is
returned to the “Standard display”, in order store these values
as a “Proprietary default” the OEM must proceed as follows:
1. Press the button for more than 5 seconds. The upper
display will show PASS while the middle display shows 0;
2. Using and buttons set the value -682;
3. Push button;
4. The instrument shows LoAd on the upper display in order
to highlight that the memorization has been made, then
returns to the
“Standard display” mode.
6.7.2 Loading the OEM default parameter set
1. Press the button for more than 5 seconds. The upper
display will show PASS while the middle display shows 0;
2. Using and buttons set the value -581;
3. Push button;
4. The instrument turns ON all the LEDs for a few seconds,
then returns to the
“Standard display” mode.
Notes: 1. If the instrument does NOT TURN ON ALL the
LEDs for at least 2 seconds means that the
password was incorrect and the EOM parameter
set has NOT been loaded.
2. Using the serial link it is always possible to send to
the address 13H the corretct password in order to
obtain the desired action (-481 for the Factory set,
-581 for OEM set or -682 to store the OEM set).
6.8 CONFIGURING ALL PARAMETERS
The following pages describe the complete parameter set.
However, the instrument shows only the applicable parameters,
according to its hardware options and the specific instrument
configuration (i.e. setting AL1t [Alarm 1 type] to nonE [not
used], all the parameters related to alarm 1 will be skipped).
]inP Group - Main input configuration
[1] SEnS - Input type
Available: Always.
Range: J = TC J (0... 1000°C/32... 1832°F);
crAL = TC K (0... 1370°C/32... 2498°F);
S= TC S (0... 1760°C/32... 3200°F);
r= TC R (0... 1760°C/32... 3200°F);
t= TC T (0... 400°C/32... 752°F);
0.20 = 0... 20 mA linear;
4.20 = 4... 20 mA linear.
Notes: 1. When a TC input is selected and a decimal figure
is programmed (see the next parameter) the max.
displayed value becomes 999.9°C or 999.9°F.
2. All changes to SEnS parameter setting, force
[
2] dP = 0. This fact changes all parameters
related to dP (Set points, Proportional band, etc.).
[2] dP - Decimal point position
Available: Always.
Range: • When [1] SenS = Linear input: 0... 3.
• When [1] SenS is different from linear input: 0 or 1.
Note: All changes to dP parameter setting produce a
change to all parameters related with it (Set points,
Proportional band, etc.).
[3] SSc - Initial scale read-out for linear inputs
Available: When a linear input is selected by [1] SenS.
Range: -1999... 9999.
Notes: 1. SSc allows the scaling of the analogue input to
set the read-out value shown when the instrument
detects the minimum measurable value.
The instrument is able to display the measured
value until it reaches a value of 5% lower than SSc,
below which shows the Underrange message .
2. It is possible to set an initial scale read-out higher
than the full scale read-out in order to obtain a
reverse read-out scaling
E.g.:
0 mA = 0 mBar and 20 mA = -1000 mBar (vacuum).
[4] FSc - Full scale read-out for linear input
Available: When a linear input is selected by [1] SenS.
Range: -1999... 9999
Notes: 1. Fsc allows the scaling of the analogue input to set
the read-out value shown when the instrument
detect the maximum measurable value.
The instrument is able to display the measured
value until it reaches a value of 5% higher than
FSc, above which shows the Overrange message .

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 7
2. It is possible to set a full scale read-out lower
than the initial scale read-out in order to obtain a
reverse read-out scaling.
E.g.:
0 mA = 0 mBar and 20 mA = -1000 mBar (vacuum).
[5] unit - Engineering unit
Available: When a temperature sensor is selected by
[1] SenS parameter.
Range: °c = Centigrade;
°F = Fahrenheit.
WARNING! The instrument does not rescale the temperature
values inserted by the user (thresholds, limits etc.).
[6] FiL - Digital filter on the measured value
Available: Always.
Range: oFF (No filter);
0.1... 20.0 s.
Note: This is a digital filter of the first order applied to the
measured value. For this reason it affects not only the
measured value, but also the control action and the
alarms behaviour.
[7] inE - Selection of the Sensor Out of Range type
that will enable the safety output value
Available: Always.
Range: our = When an overrange or an underrange is
detected, the power output will be forced to
the value of [8] oPE parameter.
or = When an overrange is detected, the power
output will be forced to the value of [8] oPE
parameter.
ur = When an underrange is detected, the power
output will be forced to the value of [8] oPE
parameter.
[8] oPE - Safety output value
Available: Always.
Range: OFF;
-100... 100% of the output.
Notes: 1. Setting OFF, when a burn out condition is detected
the instrument goes automatically in Manual mode.
To return in Auto mode, Auto must be selected
(oPer parameter, serial command or key).
2. When the instrument is programmed with one
control action only (heat or cool), setting a
value outside of the available output range, the
instrument will use 0 (zero).
E.g.: When heat action only has been programmed,
and oPE is equal to -50% (cooling) the instrument
uses (zero).
3. Using an open loop valve control (single action),
the values that are less than or equal to zero
activate the “Close valve” (out 2) output, while
the values greater than zero activate the “Open
valve”(out 1) output.
4. When ON/OFF control is programmed and an out
of range is detected, the instrument performs the
safety output value using a fixed cycle time equal
to 20 seconds.
[9] diF1 - Digital input 1 function
Available: Always.
Range: oFF = No function;
1Alarm Reset [status];
2Alarm acknowledge (ACK) [status];
3 Hold of the measured value [status];
4Stand by mode of the instrument [status].
When the contact is closed the instrument
operates in stand by mode;
5Manual mode (open loop) [status];
6 HEAt with SP1 and CooL with SP2 [status]
(see “Note”);
7SP1/SP2 selection [status].
[10] diF2 - Digital input 2 function
Available: When the code of the “Options” is equal to c
or p (see Chapter 5 “How to order”) .
Range: oFF = No function;
1Alarm Reset [status];
2Alarm acknowledge (ACK) [status];
3 Hold of the measured value [status];
4Stand by mode of the instrument [status].
When the contact is closed the instrument
operates in stand by mode;
5Manual mode;
6 HEAt with SP1 and CooL with SP2 [status]
(see “Note”);
7SP1/SP2 selection [status].
Note: When [9] diF1 or [10] diF2 (e.g. diF1) is equal to 6 the
instrument operates as follows:
• When the contact is open, the control action is a heat-
ing action and the active set point is SP.
• When the contact is closed, the control action is a
cooling action and the active set point is SP2.
[11] di.A - Digital Inputs Action
Available: Always.
Range: 0 DI1 Direct action, DI2 (when present) Direct action;
1DI1 Reverse action,
DI2 ( when present ) Direct action;
2DI1 Direct action,
DI2 ( when present ) Reverse action;
3DI1 Reverse action,
DI2 ( when present ) Reverse action.
]out Group - Output parameters
[12] o1.t - Out 1 type
Available: When the out 1 is a linear output.
Range: 0-20 = 0... 20 mA;
4-20 = 4... 20 mA;
0-10 = 0... 10 V;
2-10 = 2... 10 V.
[13] o1.F - Out 1 function
Available: Always.
Range: nonE = Output not used.
With this setting the status of this output
can be driven directly from serial link;
H.rEG = Heating output;
c.rEG = Cooling output.
Note: Carefully read the “WARNING!” paragraph at the end
of [14] o2F parameter.

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 8
[14] o2F - Out 2 function
Available: When the instrument has out 2 option.
Range: nonE = Output not used.
With this setting the status of this output
can be driven directly from serial link;
H.rEG = Heating output;
c.rEG = Cooling output.
WARNING! When using the servomotor control, both Out 1
and Out 2 must be selected as Heating or Cooling
(o1F = o2F = HrEG or o1F = o2F = c rEG),
parameter [39] cont must be set as 3pt and
must also be set the potentiometer usage with
parameter [58] - pot (none, close loop, open loop).
[15] o3.AL - Alarms linked up with Out 3
Available: Always.
Range: 0... 31 with the following rules:
+1 Alarm 1;
+2 Alarm 2;
+4 Loop break alarm;
+8 Sensor break alarm (burn out);
+16 Potentiometer break alarm.
E.g.: o3.AL = 3 (1+2) = Alarm 1 + Alarm 2.
o3.AL = 13 (1+4+8) = Alarm 1 + Loop break alarm +
Sensor break alarm.
[16] o3Ac - Out 3 action
Available: Always.
Range: dir = Direct action;
rEU = Reverse action;
dir.r = Direct action with reverse LED indication;
rEU.r = Reverse action with reverse LED indication.
[17] o4.AL - Alarms linked up with Out 4
Available: Always.
Range: 0... 31 with the following rules:
+1 Alarm 1;
+2 Alarm 2;
+4 Loop break alarm;
+8 Sensor break (burn out);
+16 Potentiometer break alarm.
[18] o4Ac - Out 4 action
Available: Always.
Range: dir = Direct action;
rEU = Reverse action;
dir.r = Direct action with reverse LED indication;
rEU.r = Reverse action with reverse LED indication.
]AL1 Group - Alarm 1 parameters
[19] AL1t - Alarm 1 type
Available: Always.
Range: nonE = Alarm not used;
LoAb = Absolute low alarm;
HiAb = Absolute high alarm;
LHAo = Absolute band alarm with alarm indication
out of the band;
LHAi = Absolute band alarm with alarm indication
inside the band;
SE.br = Sensor break;
LodE = Deviation low alarm (relative);
HidE = Deviation high alarm (relative);
LHdo = Relative band alarm with alarm indication
out of the band;
LHdi = Relative band alarm with alarm indication
inside the band;
Notes: 1. The relative and deviation alarms are “relative” to
the operative set point value.
LoAb
OUT
AL1
AL1
PV
HAL1
time
HiAb
off
off
off OUT
AL1
AL1 PV
HAL1
time
off
off
off
ON ON ON ON
LHAo
PV
AL1H HAL1
time
offoffoff
LHdo
OUT
AL1
AL1L HAL1
PV
AL1H
SP
HAL1
time
OUT
AL1
-AL1L HAL1
offoffoffON ON ON ON
2. The (SE.br) sensor break alarm will be ON when
the display shows ---- indication.
[20] Ab1 - Alarm 1 function
Available: When [31] AL1t is different from nonE.
Range: 0... 15 with the following rules:
+1 Not active at power up;
+2 Latched alarm (manual reset);
+4 Acknowledgeable alarm;
+8 Relative alarm not active at set point change.
Example: Setting Ab1 equal to 5 (1+4) the alarm 1 will be
“not active at power up” and “Acknowledgeable”.
Notes: 1. The “not active at power up” selection allows to
inhibit the alarm function at instrument power up
or when the instrument detects a transfer from:
• Manual mode (oPLo) to auto mode;
• Stand-by mode to auto mode.
The alarm will be automatically enabled when the
measured value reaches, for the first time, the
alarm threshold ±hysteresis (in other words, when
the initial alarm condition disappears).
PWR ON
AL1
PV
time
offoff
Ab1 = +1
Ab1 = +0
offoff
ON ON
ON
2. A “Latched alarm” (manual reset) is an alarm
that will remain active even if the conditions that
generated the alarm no longer persist. Alarm
reset can be done only by an external command
( button, digital inputs or serial link).
Alarm reset Alarm reset
AL1
PV
time
offoff
Ab1 = +2
Ab1 = +0
offoff
ON
ON
3. An “Acknowledgeable” alarm is an alarm that can
be reset even if the conditions that generated the
alarm are still present. Alarm acknowledge can be
done only by an external command ( button,
digital inputs or serial link).

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 9
Alarm ACK Alarm ACK
AL1
PV
time
offoff
Ab1 = +4
Ab1 = +0
offoff off
ON
ON ON
A “relative alarm not active at set point change” is
an alarm that masks the alarm condition after a
set point change until process variable reaches the
alarm threshold ±hysteresis.
Sp2
Sp1
PV
time
Ab1 = +8
Ab1 = +0
ON offoff
AL1
offoffoff
AL1
ON ON ON
ON
4. The instrument does not store in EEPROM the
alarm status. For this reason, the alarm status
will be lost if a power down occurs.
[21] AL1L -For High and low alarms, it is the low
limit of the AL1 threshold
-
For band alarm, it is low alarm threshold
Available: When [19] AL1t is different from nonE or
[19] AL1t is different from SE.br.
Range: From -1999 to [22] AL1H engineering units.
[22] AL1H - For High and low alarms, it is the high
limit of the AL1 threshold
-For band alarm, it is the high alarm
threshold
Available: When [19] AL1t is different from nonE or
[19] AL1t is different from SE.br.
Range: From [21] AL1L to 9999 engineering units.
[23] AL1- Alarm 1 threshold
Available: When:
[19] AL1t = LoAb - Absolute low alarm;
[19] AL1t = HiAb - Absolute high alarm;
[19] AL1t = LodE - Deviation low alarm (relative);
[19] AL1t = LidE - Deviation high alarm (relative).
Range: From [21] AL1L to [22] AL1H engineering units.
[24] HAL1 - Alarm 1 hysteresis
Available: When [19] AL1t is different from nonE or
[19] AL1t is different from SE.br.
Range: 1... 9999 engineering units.
Notes: 1. The hysteresis value is the difference between
the Alarm threshold value and the point the Alarm
automatically resets.
2. When the alarm threshold plus or minus the
hysteresis is out of input range, the instrument will
not be able to reset the alarm.
Example: Input range 0... 1000 (mBar).
–Set point equal to 900 (mBar);
–Deviation low alarm equal to 50 (mBar);
–Hysteresis equal to 160 (mBar) the theoretical reset point is
900 - 50 + 160 = 1010 (mBar) but this value is out of range.
The reset can be made only by turning the instrument
OFF, removing the condition that generate the alarm and
then turn the instrument ON again.
–All band alarms use the same hysteresis value for both
thresholds;
–When the hysteresis of a band alarm is bigger than the
programmed band, the instrument will not be able to reset
the alarm.
Example: Input range 0... 500 (°C).
–Set point equal to 250 (°C);
–Relative band alarm;
–Low threshold equal to 10 (°C);
–High threshold equal to 10 (°C);
–Hysteresis equal to 25 (°C).
[25] AL1d - Alarm 1 delay
Available: When [19] AL1t is different from nonE.
Range: • 0 (OFF);
• 1... 9999 seconds.
Note: The alarm goes ON only when the alarm condition
persists for a time longer than [25] AL1d time but the
reset is immediate.
[26] AL1o -Alarm 1 enabling during Stand-by mode
and out of range indications
Available: When [19] AL1t is different from nonE.
Range: 0 Never;
1During stand by;
2During overrange and underrange;
3 During overrange, underrange and stand-by.
]AL2 Group - Alarm 2 parameters
[27] AL2t - Alarm 2 type
Available: Aways.
Range: nonE = Alarm not used;
LoAb = Absolute low alarm;
HiAb = Absolute high alarm;
LHAo = Absolute band alarm with alarm indication
out of the band;
LHAi = Absolute band alarm with alarm indication
inside the band;
SE.br = Sensor break;
LodE = Deviation low alarm (relative);
HidE = Deviation high alarm (relative);
LHdo = Relative band alarm with alarm indication
out of the band;
LHdi = Relative band alarm with alarm indication
inside the band.
Note: The relative alarm are “relative” to the current set point
(this may be different from the Target set point if you are
using the ramp to set point function).
[28] Ab2 - Alarm 2 function
Available: When [27] AL2t is different from nonE.
Range: 0... 15 with the following rules:
+1 Not active at power up;
+2 Latched alarm (manual reset);
+4 Acknowledgeable alarm;
+8 Relative alarm not active at set point change.
Example: Setting Ad2 equal to 5 (1+4) the alarm 2 will be
“not active at power up” and “Acknowledgeable”.
Note: For other details see [20] Ab1 parameter.

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 10
[29] AL2L -For High and low alarms, it is the low
limit of the AL2 threshold
- For band alarm, it is low alarm threshold
Available: When [27] AL2t is different from nonE or
[27] AL2t is different from SE.br.
Range: -1999 to [30] AL2H engineering units.
[30] AL2H - For High and low alarms, it is the high
limit of the AL2 threshold
-
For band alarm, it is high alarm threshold
Available: When [27] AL2t is different from nonE or
[27] AL2t is different from SE.br.
Range: From [29] AL2L to 9999 engineering units.
[31] AL2 - Alarm 2 threshold
Available: When:
[27] AL2t = LoAb Absolute low alarm;
[27] AL2t = HiAb Absolute high alarm;
[27] AL2t = LodE Deviation low alarm (relative);
[27] AL2t = LidE Deviation high alarm (relative).
Range: From [29] AL2L to [30] AL2H engineering units.
[32] HAL2 - Alarm 2 hysteresis
Available: When [27] AL2t is different to nonE or
[27] AL2t is different from SE.br.
Range: 1... 9999 engineering units.
Note: For more details see [24] HAL1 parameter.
[33] AL2d - Alarm 2 delay
Available: When [27] AL2t different from nonE.
Range: • 0 (OFF);
• 1... 9999 seconds.
Note: The alarm goes ON only when the alarm condition
persists for a time longer than [33] AL2d time but the
reset is immediate.
[34] AL2o - Alarm 2 enabling during Stand-by mode
and out of range indications
Available: When [27] AL2t different from nonE.
Range: 0 Never;
1During stand by;
2During overrange and underrange;
3 During overrange, underrange and stand-by.
]LbA group - Loop break alarm
General note about LBA alarm
The LBA operates as follows: applying the 100% of the power
output to a process, the process variable should change (with a
delay due to the process inertia) in a known direction (increases
for a heating action or decreases for a cooling action). If this
does not happen, the LBA alarm is generated.
Example: Applying the 100% of the power output to a furnace,
the temperature must go up unless one of the component in
the loop is faulty (heater, sensor, power supply, fuse, etc...).
The same is applied to the minimum power. In our example,
when the furnace power is turned down to 0%, the tempera-
ture must go down, if not the SSR is in short circuit, the valve
is jammed, and so on. So the LBA should be generated.
LBA function is automatically enabled when the PID requires
the maximum or the minimum power.
When the process response is slower than the programmed
limit the instrument generates an alarm.
Notes: 1. When the instrument is in manual mode, the LBA
function is disabled.
2. When LBA alarm is ON the instrument continues
to perform the standard control. If the process
response comes back into the programmed limit,
the instrument automatically resets the LBA alarm.
[35] LbAt - LBA time
Available: Always.
Range: • oFF = LBA not used;
• 1... 9999 seconds.
[36] LbSt - Delta measure used by LBA during Soft
start
Available: When [35] LbAt is different from oFF.
Range: • oFF = loop break alarm is inhibit during soft start;
• 1... 9999 engineering units.
[37] LbAS - Delta measure used by loop break alarm
(loop break alarm step)
Available: When [35] LbAt is different from oFF.
Range: 1... 9999 engineering units.
[38] LbcA - Condition for LBA enabling
Available: When [35] LbAt is different from oFF.
Range: uP = Enabled when PID requires the maximum
power only;
dn = Enabled when PID requires the minimum
power only;
both = Enabled in both condition (when PID re-
quires the maximum or the minimum power).
LBA application example:
LbAt (LBA time) = 120 seconds (2 minutes);
LbAS (delta LBA) = 5°C.
The machine has been designed in order to reach 200°C in
20 minutes (20°C/min).
When the PID demands 100% power, the instrument starts
the time count.
During time count if the measured value increases more
than 5°C, the instrument restarts the time count. Otherwise
if the measured value does not reach the programmed delta
(5°C in 2 minutes) the instrument will generate the alarm.
]rEG group - Control parameters
[39] cont - Control type
Available: When at least one output is programmed as con-
trol output (H.rEG or C.rEG).
Range: • When two control actions (heat & cool) are pro-
grammed:
Pid = PID (heat and cool);
nr =
Heat/Cool ON/OFF control with neutral zone;
HSEt
HSEt
SP
PV
time
OUTH.rEG
(heating)
OUTc.rEG
(cooling)
offON ON
off offON
• When one control action (heat or cool) is pro-
grammed:
Pid = PID (heat or cool);
On.FA = ON/OFF asymmetric hysteresis;
On.FS = ON/OFF symmetric hysteresis;
3Pt = Servomotor control .

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 11
HEAt - On.FA
OUT
H.rEG
SP
PV
HSEt
time
off off
CooL-On.FA
OUT
C.rEG
SP
PV
HSEt
time
ON ON ON off off ON ON ON
HEAt - On.FS
SP
PV
HSEt
HSEt
time
CooL -On.FS
SP
PV
HSEt
HSEt
time
OUT
H.rEG off off OUT C.rEG
ON ON ON off offON ON ON
Notes: 1. ON/OFF control with asymmetric hysteresis:
• OFF when PV > SP;
• ON when PV < (SP - hysteresis).
2. ON/OFF control with symmetric hysteresis:
• OFF when PV > (SP + hysteresis);
• ON when PV < (SP - hysteresis).
[40] Auto - Auto tune selection
Ascon Tecnologic has developed three auto-tune algorithms:
–Oscillating auto-tune;
–Fast auto-tune;
–EvoTune.
1. The oscillating auto-tune is the usual auto-tune and:
• It is more accurate;
• Can start even if PV is close to the set point;
• Can be used even if the set point is close to the
ambient temperature.
2. The fast type is suitable when:
• The process is very slow and you want to be opera-
tive in a short time;
• When an overshoot is not acceptable;
• In multi-loop machinery where the fast method reduces
the calculation error due to the effect of the other loops.
3. The EvoTune type is suitable when:
• You have no information about your process;
• You cannot be sure about the end user skills;
• You desire an auto tune calculation independently
from the starting conditions (e.g. set point change
during tune execution, etc.).
Note: Fast auto-tune can start only when the measured
value (PV) is lower than (SP + 1/2SP).
Available: Always.
Range: -4... 8 where:
-4 Oscillating auto-tune with automatic restart at
all set point change;
-3 Oscillating auto-tune with manual start;
-2 Oscillating auto-tune with automatic start at first
power ON only;
-1 Oscillating auto-tune with automatic restart at
all power ON;
0Not used;
1Fast auto tuning with automatic restart at all
power ON;
2Fast auto-tune with automatic start at first
power ON only;
3FAST auto-tune with manual start;
4FAST auto-tune with automatic restart at all set
point change.
5 EvoTune with automatic restart at every power ON;
6 EvoTune with automatic start at first power ON only;
7EvoTune with manual start;
8EvoTune with automatic restart at all set point
change.
[41] tunE - Manual start of the auto-tune
Available: Always.
Range: oFF = The instrument is not performing the auto-tune;
on = The instrument is performing the auto-tune.
[42] HSEt - Hysteresis of the ON/OFF control
Available: When [39] cont is different from PID.
Range: 0... 9999 engineering units.
[43] Pb - Proportional band
Available: Always.
Range: 1... 9999 engineering units.
Note: Auto-tune functions calculate this value.
[44] ti - Integral time
Available: Always.
Range: 0 (oFF) = Integral action excluded;
1... 9999 seconds;
inF= Integral action excluded.
Note: Auto-tune functions calculate this value.
[45] td - Derivative time
Available: Always.
Range: 0 (oFF) = Derivative action excluded;
1... 9999 seconds.
Note: Auto-tune functions calculate this value.
[46] Fuoc - Fuzzy overshoot control
This parameter reduces the overshoot usually present at
instrument start up or after a set point change and it will be
active only in this two cases.
Setting a value between 0.00 and 1.00 it is possible to slow
down the instrument action during set point approach.
Setting Fuoc = 1 this function is disabled.
PV
SP
time
21
3
Available: When at least one output is programmed as con-
trol output (c.rEG) and [39] cont = PID.
Range: 0... 2.00.
Note: Fast auto-tune calculates the Fuoc parameter while
the oscillating one sets it equal to 0.5.
[47] tcH - Cycle time of the heating output
Available: When at least one output is programmed in order
to be the heating output (H.rEG) and
[39] cont is different from 3Pt.
Range: 1.0... 130.0 seconds.
[48] rcG -Power ratio between heating and
cooling action (relative cooling gain)
The instrument uses the same PID parameter set for heat
and for cool action but the efficiency of the two actions are
usually different.
This parameter allows to define the ratio between the efficiency
of the heating system and the efficiency of the cooling one.
An example will help us to explain you the philosophy.
Consider one loop of a plastic extruder. The working
temperature is equal to 250°C.
When you want to increase the temperature from 250
to 270°C (DT = 20°C) using 100% of the heating power
(resistor), you will need 60 seconds.
On the contrary, when you want to decrease the temperature

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 12
from 250 to 230°C (DT = 20°C) using 100% of the cooling
power (fan), you will need 20 seconds only.
In our example the ratio is equal to 60/20 = 3 ([48] rcG = 3)
and it say that the efficiency of the cooling system is 3 time
more efficient of the heating one.
Available: When two control actions are programmed
(H.rEG and c.rEG), [39] cont = PID and
[41] SELF = no.
Range: 0.01... 99.99
Note: Auto-tune functions calculate this value.
[49] tcc - Cycle time of the cooling output
Available: When at least one output is programmed in order
to be the cooling output (c.rEG), [39] cont = 3pt.
Range: 1.0... 130.0 seconds.
[50] rS - Manual reset (integral pre-load)
It allows to drastically reduce the undershoot due to a
hot restart. When your process is steady, the instrument
operates with a steady power output (e.g.: 30%).
If a short power down occurs, the process restarts with a
process variable close to the set point while the instrument
starts with an integral action equal to zero.
Setting a manual reset equal to the average power output
(in our example 30%) the instrument will start with a power
output equal to the value it will use at steady state (instead
of zero) and the undershoot will become very little (in theory
equal to zero).
Available: When [39] cont = PID or [39] cont = 3Pt.
Range: -100.0... +100.0%.
[51] Str.t - Servomotor stroke time
Available: When [39] = 3Pt.
Range: 5... 300 seconds.
Note: When an open loop with potentiometer input is
selected, this parameter ia automatically calculated
by the “Automatic calibration system” (see [59] P.cAL
parameter).
[52] db.S - Servomotor dead band
Available: When [39] = 3Pt.
Range: 0... 10.0%.
[53] oP.L - Minimum power output
Available: When: [39] cont = PID or
[39] cont = 3Pt and [58] Pot = Pot.o or
[39] cont = 3Pt and [58] Pot = Pot.c.
Range: From -100 to [54] oP.H%.
[54] oP.H -Maximum power output
Available: When: [39] cont = PID or
[39] cont = 3Pt and [58] Pot = Pot.o or
[39] cont = 3Pt and [58] Pot = Pot.c.
Range: From [53] oP.L to 100%.
[55] St.P -Maximum power output used during
soft start
Available: When: [39] cont = PID or
[39] cont = 3Pt and [58] Pot = Pot.c.
Range: -100... +100%.
Notes: 1. When St.P parameter have a positive value, the
limit will be applied to the heating output(s) only.
2. When St.P parameter have a negative value, the
limit will be applied to the cooling output(s) only.
3. The auto-tune function will be performed after soft
start function.
[56] SSt - Soft start time
Available: When: [39] cont = PID or
[39] cont = 3Pt and [58] Pot = Pot.c.
Range: oFF = Function not used;
0.01... 7.59 hh.mm;
inF = Soft start always active.
Note: The time calculation starts at Power ON and is inter-
rupted only if the instrument detects a sensor break.
The time count restarts as soon as the abnormal
condition disappears.
[57] SS.tH - Threshold for soft start disabling
Available: When: [39] cont = PID or
[39] cont = 3Pt and [58] Pot = Pot.c.
Range: -1999... 9999 engineering units.
Notes: 1. When the power limiter has a positive value (the
limit is applied to the heating action) the soft start
function will be aborted when the measured value
is greater or equal to SS.tH parameter.
2. When the power limiter has a negative value (the
limit is applied to the cooling action) the soft start
function will be aborted when the measured value
is lower or equal to SS.tH parameter.
[58] Pot - Potentiometer enabling
Available: Always.
Range: nonE = Potentiometer not used;
Pot.o = Potentiometer used for indication only;
Pot.c = Potentiometer used for feedback purposes.
[59] P.cAL - Automatic Potentiometer Calibration
Available: When the output is a servomotor output and
[39] cont = 3Pt and [58] Pot = Pot.o.
Range: no = Automatic potentiometer calibration disabled;
YES = Automatic potentiometer calibration enabled.
Notes about Automatic Potentiometer Calibration
When [59] P.cAL = YES, pushing the button the
instrument operates as follows:
1. The instrument goes in MANUAL mode;
2. The instrument energizes the Open valve output (Out 1),
then verifies if the measure of the potentiometer position
starts to grow.
2.1 If the potentiometer position value decreases, the
instrument de-energizes Out 1 and shows the mes-
sage: E.P.rE (Error - potentiometer reversed).
The message disappears as soon as the button is
pressed (the instrument returns to the P.cAL parameter).
2.2 If, after 10 seconds, the measure does not increase,
the instrument de-energizes the Open valve relay
and energizes Close valve relay (Out 2).
2.2.1. If, after 10 seconds, the measure does not de-
crease, the instrument de-energizes the Out 2
relay, considers the potentiometer disconnected
and shows the message no.Pt (No potentiome-
ter) on the middle display. The message disap-
pears as soon as the button is pressed (the
instrument returns at P.cAL parameter).
2.2.2. If the measure starts decreasing, the instru-
ment keeps active the “Close valve” output
until the measure changes. When the meas-
ure stops changing for more than 5 seconds,
the instrument stores this value as 0% (zero)
position and goes to the next step.

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 13
3. The instrument de-energizes the Close valve output and ener-
gizes the Open valve one until the measured value increases.
4. When the measure stops changing for more than 5 seconds,
the instrument stores this value as 100% position.
4.1 If the count detected from 0% to 100% is lower than
30% of the instrument counts, on the middle display
the instrument shows the error message:
E.P.cA (Potentiometer calibration error).
The message disappears as soon as the button is
pressed (the instrument returns at P.cAL parameter).
5. During the potentiometer calibration phase the instrument
detects the (real) valve stroke time and it stores it in the
Str.t (Stroke time) parameter.
At the end of the automatic potentiometer calibration the
instrument moves the valve to zero and shows “donE”.
The message disappears as soon as the button is
pressed (the instrument returns at P.cAL parameter).
Note also:
If, during normal operations, the instrument detects a poten-
tiometer malfunction, it operates as follows:
–Switches immediately to the “Servo motor without
potentiometer” control mode;
–Ignores parameters [53] OP.L and [54] OP.H;
–The potentiometer icon starts flashing to point out the
problem.
]SP Group - Set point parameters
[60] nSP - Number of used set points
Available: Always.
Range: 1... 4.
Note: Changing the value of this parameter the instrument
operates as follows:
• [67] A.SP parameter will be forced to SP.
• The instrument verifies that all used set points are
within the limits programmed by [61] SPLL and
[62] SPHL. If an SP is out of this range, the instru-
ment forces it to the maximum acceptable value.
[61] SPLL - Minimum set point value
Available: Always.
Range: From -1999 to [62] SPHL engineering units.
Notes: 1. Changing [61] SPLL value, the instrum ent checks
all local set points (SP, SP2, SP3 and SP4 param-
eters). If an SP is out of this range, the instrument
forces it to the maximum acceptable value.
2. A [61] SPLL change produces the following actions:
• When [68] SP.rt = SP the remote set point will
be forced to be equal to the active set point.
• When [68] SP.rt = trim the remote set point
will be forced to zero.
• When [68] SP.rt = PErc the remote set point
will be forced to zero.
[62] SPHL - Maximum set point value
Available: Always.
Range: From [61] SPLL to 9999 engineering units.
Note: For other details see [61] SPLL parameter.
[63] SP - Set Point 1
Available: Always.
Range: From [61] SPLL to [62] SPHL engineering units.
[64] SP 2 - Set Point 2
Available: When [60] nSP > 2.
Range: From [61] SPLL to [62] SPHL engineering units.
[65] SP 3 - Set Point 3
Available: When [60] nSP > 3.
Range: From [61] SPLL to [62] SPHL engineering units.
[66] SP 4 - Set Point 4
Available: When [60] nSP =4.
Range: From [61] SPLL to [62] SPHL engineering units.
[67] A.SP - Selection of the active Set point
Available: When [60] nSP > 2
Range: From “SP” to [60] nSP.
Notes: 1. A [67] A.SP change produces the following actions:
• When [68] SP.rt = SP - the remote set point
will be forced to be equal to the active set
point;
• When [68] SP.rt = trin - the remote set point
will be forced to zero;
• When [68] SP.rt = PErc - the remote set
point will be forced to zero.
2. SP2, SP3 and SP4 selection will be shown
only when the relative set point is enabled (see
[60] nSP parameter).
[68] SP.rt - Remote set point type
These instruments can communicate with each other, using
RS 485 serial interface without a PC. An instrument can be
set as a Master while the others are Slave units. The Master
unit can send his operative set point to the slave units.
In this way, for example, it is possible to change simultane-
ously the set point of 20 instruments by changing the set
point of the master unit (e.g. hot runner application).
[68] SP.rt parameter defines how the slave units will use the
value coming from serial link.
The [85] tr.SP [selection of the value to be retransmitted
(Master)] parameter allows to define the value sent by
master unit.
Available: When serial interface is present.
Range: rSP = The value coming from serial link is used
as remote set point (RSP).
trin = The value coming from serial link will be
algebraically added to the local set point
selected by A.SP and the sum becomes
the operative set point.
PErc = The value coming from serial will be scaled
on the input range and this value will be
used as remote set point.
Note: A [68] SPrt change produces the following actions:
• When [68] SP.rt = rSP - the remote set point will be
forced to be equal to the active set point;
• When [68] SP.rt = trin - the remote set point will be
forced to zero;
• When [68] SP.rt = PErc - the remote set
point will be forced to zero.
Example: A 6 zone reflow-oven for PCB. The master unit
sends its set point value to 5 other zones (slave controllers).
The Slave zones use it as a set point trim.
The first zone is the master zone and it uses a set point
equal to 210°C.
The second zone has a local set point equal to -45°C.

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 14
The third zone has a local set point equal to -45 (°C).
The fourth zone has a local set point equal to -30.
The fifth zone has a local set point equal to +40.
The sixth zone has a local set point equal to +50.
In this way, the thermal profile will be the following:
–Master SP = 210°C;
–Second zone SP = 210 -45 = 165°C;
–Third zone SP = 210 -45 = 165°C;
–Fourth zone SP = 210 - 30 = 180°C;
–Fifth zone SP = 210 + 40 = 250°C;
–Sixth zone SP = 210 + 50 = 260°C.
Changing the SP of the master unit, all the other slave units
will immediately change their operative set point.
[69] SP.Lr - Local/remote set point selection
Available: Always.
Range: Loc = Local set point selected by [67] A.SP;
rEn = Remote set point (coming from serial link).
[70] SP.u - Rate of rise for positive set point change
(ramp up)
Available: Always.
Range: 0.01... 99.99 units per minute;
inF = Ramp disabled (step transfer).
[71] SP.d - Rate of rise for negative set point change
(ramp down)
Available: Always.
Range: 0.01... 99.99 units per minute;
inF = Ramp disabled (step transfer).
General note about remote set point:
When the remote set point (RSP) with trim action is
programmed, the local set point range becomes:
from [61] SPLL + RSP to [62] SPHL - RSP.
]PAn group - Operator HMI
[72] PAS2 -Level 2 password: Limited access level
Available: Always.
Range: oFF = Level 2 not protected by password
(as level 1 = Operator level);
1... 200.
[73] PAS3 - Level 3 password:
Complete configuration level
Available: Always.
Range: 3... 200.
Note: Setting [72] PAS2 equal to [73] PAS3, the level 2 will
be masked.
[74] uSrb - button function during RUN TIME
Available: Always.
Range: nonE = No function;
tunE = Auto-tune/self-tune enabling. A single
press (longer than 1 s) starts the auto-tune;
oPLo = Manual mode. The first pressure puts the
instrument in manual mode (oPLo) while the
second one puts the instrument in Auto mode;
AAc = Alarm reset;
ASi = Alarm acknowledge;
St.by = Stand by mode. The first press puts the in-
strument in stand by mode while a second
one puts the instrument in Auto mode;
SP1.2 = SP/SP2 selection.
Notes: 1. When “SP1.2” is used, every press of the
button (longer than 1 second) switches the
selected set point.
Changing the set point using the key, the
display shows for 2 seconds the acronym of the
new set point (SP1 or SP2).
2. To use “SP1.2” selection, the [60] nSP parameter
must be equal to 2.
[75] diSP - Middle Display Management
Available: Always.
Range: nonE = Display not used;
SPF = Final set point;
SPo = Operative set point;
AL1 = Alarm 1 threshold;
AL2 = Alarm 2 threshold;
Po = Power output.
[76] di.cL - Display colour
Available: Always.
Range: 0 The display colour is used to show the actual
deviation (PV - SP);
1Display red (fix);
2Display green (fix);
3Display orange (fix).
[77] AdE - Deviation for display colour management
Available: When [123] di.cL = 0.
Range: 1... 9999 engineering units.
[78] diS.t - Display time out
Available: Always.
Range: oFF = The display is steady ON;
0.1... 99.59 minutes and seconds.
Note: This function allows to turn OFF the display when no
alarm is present and no action is made on the instrument.
When diS.t is different from oFF and no button is
pressed, at the end of the programmed time out, the
display goes OFF and only the four segments of the
least significant digit are turned ON in sequence to
show that the instrument is operating.
If an alarm occurs or a key is pressed, the display
returns to normal operation.
[79] FiLd - Filter on the displayed value
Available: Always.
Range: oFF = Filter disabled;
1... 100 engineering units.
Note: This is a “window filter” related to the set point, it is ap-
plied to the displayed value only and has no effect on the
other functions of the instrument (control, alarms, etc.).
[80] dSPu - Status of the instrument at power up
Available: Always.
Range: AS.Pr = Starts in the same way it was prior to the
power down;
Auto = Starts in Auto mode;
oP.0 = Starts in manual mode with a power output
equal to zero.
St.bY = Starts in stand-by mode
Note: When the user changes the value of [81] oPr.E, the
instrument forces parameter [82] oPEr = Auto.

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 15
[81] oPr.E - Operative modes enabling
Available: Always.
Range: ALL = All modes will be selectable by the next
parameter.
Au.oP = Auto and manual (oPLo) mode only will be
selectable by the next parameter;
Au.Sb = Auto and Stand-by modes only will be se-
lectable by the next parameter.
Note: When the user changes the value of [81] oPr.E, the
instrument forces parameter [82] oPEr = Auto.
[82] oPEr - Operative mode selection
Available: Always.
Range: • When [81] oPr.E = ALL:
Auto = Auto mode;
oPLo = Manual mode;
St.bY = Stand by mode.
• When [81] oPr.E = Au.oP:
Auto = Auto mode;
oPLo = Manual mode.
• When [81] oPr.E = Au.Sb:
Auto = Auto mode;
St.bY = Stand by mode.
]Ser group - Serial link parameter
[83] Add - Instrument address
Available: Always.
Range: oFF = Serial interface not used;
1... 254.
[84] bAud - Baud rate
Available: When [84] Add different from oFF.
Range: 1200 = 1200 baud;
2400 = 2400 baud;
9600 = 9600 baud;
19.2 = 19200 baud;
38.4 = 38400 baud.
[85] trSP - Selection of the value to be retransmitted
(Master)
Available: When [83] Add different from oFF.
Range: nonE = Retransmission not used (the instrument is
a slave);
rSP = The instrument becomes a Master and it
retransmits the operative set point;
PErc = The instrument becomes a Master and it
retransmits the power output.
Note: For more details see [68] SP.rt (Remote set point type)
parameter.
]cAL group - User calibration group
This function allows to calibrate the complete measuring
chain and to compensate the errors caused by:
–Sensor location;
–Sensor class (sensor errors);
–Instrument accuracy.
[86] AL.P - Adjust Low Point
Available: Always.
Range: From -1999 to (AH.P - 10) engineering units.
Note: The minimum difference between AL.P and AH.P is
equal to 10 Engineering Units.
[87] AL.o - Adjust Low Offset
Available: Always.
Range: -300... +300 engineering units.
[88] AH.P - Adjust High Point
Available: Always.
Range: From (AL.P + 10) to 9999 engineering units.
Note: The minimum difference between AL.P and AH.P is
equal to 10 Engineering Units.
[89] AH.o - Adjust High Offset
Available: Always.
Range: -300... +300 Engineering Units.
Example: Environmental chamber with operative range:
10... 100°C.
1. Insert in the chamber a reference sensor connected with
a reference instrument (usually a calibrator).
2. Start the control of the instrument, and set a set point equal to
the minimum value of the operative range (e.g.: 10°C). When
the temperature in the chamber is steady, take note of the
temperature measured by the reference system (e.g.: 9°C).
3. Set [86] AL.P = 10 (low working point) and [87] ALo = -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 [88] AH.P = 100 (low working point) and [89] AHo = +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 configuration procedure is
completed.
In order to exit from configuration parameter procedure,
proceed as follows:
• Push button.
• Push button for more than 10 s.
The instrument returns to the Standard display.

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 16
7. PARAMETER PROMOTION
Another important step of the instrument configuration is due
to the possibility to create a custom HMI (interface) in order
to make the instrument easy to use for the operator and
comfortable for the assistance.
By a special procedure, named promotion, the OEM can
create two parameter subsets.
The first one is the “Limited access” level. This subset
is protected by the password programmed by [72] PAS2
parameter.
The last subset is the “Operator” set (Level1). This level is
NOT password protected.
Notes: 1. The “limited access” parameters are collected in
a list.
2. The sequence of the “Limited access” parameters
is programmable and can be made according to
your needs.
3. The parameter sequence of the operator level is
the same programmed for “Limited access” level
but only specified parameters can be displayed
and modified. This set must be create according
to your requirements.
7.1 PARAMETER PROMOTION
PROCEDURE
The limited access parameter set is a list. Before starting
the promotion procedure, we suggest to operate as follows:
1. Prepare the exact parameter list you want to make
accessible for limited access.
2. Number the desired parameters in the same sequence
you want to have in the limited access.
3. Define which of the selected parameter will be available
in Operator level also.
Example: I would like to obtain the following limited access list:
• OPEr - Operative mode selection;
• SP - first set point;
• SP2 - Second set point;
• A.SP - Set point selection;
• AL1 - Alarm 1 threshold;
• AL2 - Alarm 2 threshold;
• Pb - Proportional band;
• ti - Integral time;
• td - Derivative time;
• Aut.r - Manual start of the auto-tune.
But I want that the operator to be able to change: the
operative mode, the SP value and the AL1 value. In this
case the promotion will be the following:
Parameter Promotion Limited Access Operator
- OPEr - o 1 OPEr OPEr
- SP - o 2 SP SP
- SP2 - A 3 SP2
- A.SP - A 4 A.SP
- AL1 - o 5 AL1 AL1
- AL2 - A 6 AL2
- Pb - A 7 Pb
- ti - A 8 ti
- td - A 9 td
- Aut.r - A 10 Aut.r
Now, proceed as follows:
1. Push the button for more than 3 seconds.
The upper display will show PASS while the middle
display shows 0.
2. By and buttons set a password equal to -81.
3. Push button.
The instrument shows the acronym of the first
configuration parameter group
] inP.
4. By button select the group of the first parameter of
your list.
5. By button select the first parameter of your list.
6. The upper display shows the acronym of the parameter
while the middle display shows its current promotion level.
The promotion level is defined by a letter followed by a
number.
The letter can be:
c: The parameter is NOT promoted and it is
present only in configuration. In this case the
number is forced to zero.
A: The parameter has been promoted to the
limited access level. The number indicates the
position in the limited access list.
o: The parameter has been promoted to the Op-
erator level. The number indicates the position
in the limited access list.
7. Using the and buttons assign to the parameter
the desired position.
Note: Setting a value different from 0 the letter cwill change
automatically to Aand the parameter is automatically
promoted to the limited access level.
8. In order to modify the level from limited access
to operator and vice versa, push button and,
maintaining the pressure, push button.
The letter will change from Ato oand vice versa.
9. Select the second parameter that you want to add to the
assistance level and repeat step 6, 7 and 8.
10.Repeat steps 5, 6, 7, 8 until the list has been completed.
11.When you need to exit from promotion procedure, push
button and maintain the pressure for more than 10 s.
The instrument returns to the Standard display.
Note: When you set the some number to 2 parameters, the
instrument uses only the last programmed parameter.
Example: In the previous example, I have set for SP2 a
promotion value equal to A3.
If now I set for SP3 a promotion value equal to o3, the
Limited Access list and the operator list becomes.
Parameter Promotion Limited Access Operator
- OPEr - o 1 OPEr OPEr
- SP - o 2 SP SP
- SP3 - o 3 SP3 SP3
- A.SP - A 4 A.SP
- AL1 - o 5 AL1 AL1

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 17
8. OPERATIVE MODES
As we mentioned at Paragraph 6.1, when the instrument is
powered, it starts immediately to work according to the value
of the parameters stored in its memory.
In other words, the instrument has one status only, the “run
time” status.
During “run time” we can force the instrument to operate in
three different modes:
Automatic mode, Manual mode or Stand by mode:
–In Automatic mode the instrument drives automatically
the control output according to the parameter values set
and the set point/measured value.
–In Manual mode the upper display shows the measured
value while the middle display shows the power output
[preceded by H(for heating) or C(for cooling)], MAN is lit
and the instrument allows you to set manually the control
output power.
No Automatic action will be made.
–In Stand by mode the instrument operates as an indicator.
It will show on the upper display the measured value and
on the middle display the set point alternately to the St.bY
messages and forces the control outputs to zero.
As we have seen, it is always possible to modify the value
assigned to a parameter independently from the operative
mode selected.
8.1 MODIFY A PARAMETER DURING
“OPERATOR LEVEL”
The instrument is showing the Standard display.
1. Press the button.
2. The upper display will show the acronym of the first
parameter promoted to this level while the middle display
shows its value.
3. By and button assign to this parameter the
desired value.
4. Press the button in order to store the new value and
go to the next parameter.
5. When you want to return to the Standard display push the
button for more than 5 seconds.
Note: The parameter modification of the Operator level
is subject to a time out. If no button is pressed for
more than 10 seconds, the instrument returns to
the Standard display and the new value of the last
selected parameter will be lost.
8.2 ENTER THE “LIMITED ACCESS LEVEL”
The instrument is showing the “standard display”.
1. Press the button for more than 5 seconds;
the upper display will show PASS while the middle display
shows 0;
2. By and buttons insert the password set with
parameter [72] PAS2 (Level 2 password).
Notes: 1. The factory default password for configuration
parameters is 20.
2. Operator and assistace level of Parameter
modification are protected by a time out. If no
button is pressed for more than 10 second the
instrument automatically returns to the Standard
display, the new value of the last selected
parameter is lost and the parameter modification
procedure is closed.
When you desire to remove the time out (e.g. for
the first instrument configuration) you can use a
password equal to 1000 plus the programmed
password (e.g. 1000 + 20 [default] = 1020).
It is always possible to manually End the
parameter configuration procedure (see below).
3. During parameter modification the instrument
continues to perform the control.
In certain conditions (e.g. when a parameter
change can produces a heavy bump to the
process) it is advisable to temporarily stop the the
control action during the programming procedure
(the control output will be Off). A password equal
to 2000 + the programmed value (e.g. 2000 + 20 =
2020) will switch OFF the control action during the
configuration. The control will restart automatically
when the parameter modification procedure will be
manually ended.
4. Push button.
5. The instrument will show on the upper display the
acronym of the first parameter promoted to this
level and on the middle displays its value.
6. By and buttons assign to this parameter
the desired value.
7. Press the button in order to store the new
value and pass to the next parameter.
8. When you want to return to the Standard display
push the button for more than 5 s.
8.3 HOW TO SEE BUT NOT MODIFY THE
“LIMITED ACCESS PARAMETERS”
To allow the operator to read the value assigned to the
promoted parameter at Limited Access level but restrict the
changes only to authorized personnel.
In this cases, proceed as follows:
1. Press the button for more than 5 seconds;
the upper display will show PASS while the middle display
shows 0;
2. By and button set the value -181;
3. Push button;
4. The upper display will show the acronym of the first
parameter promoted to level 2 while the middle display
shows its value;
5. Using button it is possible to see the value assigned
to all the parameters present in level 2 but it will not be
possible to modify it;
6. It is possible to return to the Standard display” pushing
the button for more than 3 seconds or by pushing no
buttons for more than 10 seconds.

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 18
8.4 AUTOMATIC MODE
8.4.1 Keyboard functions when the instrument
is in Auto mode
Performs the action programmed by [74] uSrb
( button function during RUN TIME) parameter.
Enters the parameter modification procedures.
Starts the “Direct set point modification” function (see
below).
Displays the “Additional information” (see below).
8.4.2 Direct set point modification
This function allows to modify quickly the set point value
selected by [67] A.SP (selection of the active Set point)
currently in progress.
The instrument is showing the “standard display”.
1. Push button.
The upper display shows the acronym of the selected set
point (e.g. SP2) and the middle display will show its value.
2. By and buttons, assign to this parameter the
desired value;
3. Do not push any button for more than 5 second or
push the button. In both cases the instrument stores
the new value and returns to the Standard display.
Note: If the selected set point has not been promoted to the
Operator level, the instrument allows you to see the
value but not to modify it.
8.4.3 Additional information
This instrument is able to show you the power output
calculated by the PID.
1. While the instrument is showing the Standard display
push button.
The middle display will show Hor cfollowed by a number.
This value is the current output power calculated by the
PID. The H indicates that the action is a Heating action
while the cindicates that the action is a Cooling action.
2. Push button again. The instrument returns to the
Standard display.
Note: The additional information visualization is subject to
a time out. If no button is pressed for more than 10
second the instrument automatically returns to the
Standard display.
8.4.4 Display management
This instrument allows you to program the time out of the
display (see parameter [78] diS.t).
This function allows to turn OFF the display when no alarm
is present and no action is made on the instrument.
When [78] diS.t is different from OFF (always on display) and
no button is pressed for more than the programmed time
out, the display goes OFF and only 4 segments of the less
significant digit are turned ON in sequence in order to show
that the instrument is working correctly.
If an alarm occurs or a button is pressed, the display returns
to the normal operation.
8.4.5 The display colour shows the Deviation
This instrument allows to program the deviation (PV - SP) for
colour display change (see parameter [77] AdE).
In this way the upper display will be:
–Amber when PV is lower than SP - AdE;
–Green when (SP - AdE) < PV<SP + AdE);
–Red when PV is higher than SP + AdE.
8.5 MANUAL MODE
This operative mode allows you to deactivate automatic
control and manually set valve position.
When the instrument is in manual mode, the upper display
shows the measured value, the middle display shows the
power output [preceded by H(for heating action) or C(for
cooling action)] while the lower display continue to show the
valve position (measured or calculated according to [58] Pot
parameter setting).
The MAN LED is lit.
When manual control is selected, the instrument will start to
operate with the same power output as the last one supplied
by automatic mode and it can be modified using the and
buttons.
Notes: 1. During manual mode, the alarms are operative.
2. If you set manual modes during self-tune
execution, the self-tune function will be aborted.
8.6 STAND BY MODE
This operative mode also deactivates the automatic control
but forces the control output (valve position) to zero.
In this mode the instrument operates as an indicator.
When the instrument is in stand by mode the upper display
will show the measured value while the middle display will
show alternately the set point and the message “St.bY”.
Notes: 1. During stand by mode, the relative alarms are
disabled while the absolute alarms are operative
or not according to the ALxo (Alarm x enabling
during Stand-by mode) parameter setting.
2. If you set stand by mode during self-tune
execution, the self- tune function will be aborted.
3. When the instrument is swapped from stand
by to auto modes, the instrument will start
automatically the alarm masking, the soft start
functions and the auto-tune (if programmed).

Ascon Tecnologic - KX6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 19
9. ERROR MESSAGES
9.1 OUT OF RANGE SIGNALS
The upper display shows the OVER-RANGE and UNDER-
RANGE conditions with the following indications:
Over-range Under-range
The sensor break will be signalled as an out of range
Note: When an over-range or an under-range is detected,
the alarms operate as in presence of the maximum or
the minimum measurable value respectively.
To check the out of span Error condition, proceed as follows:
1. Check the input signal source and the connecting line.
2. Make sure that the input signal is in accordance with the
instrument configuration.
Otherwise, modify the input configuration (see section 4).
3. If no error is detected, send the instrument to your
supplier to be checked.
9.2 LIST OF POSSIBLE ERRORS
ErAT Fast Auto-tune cannot start. The measure value is
too close to the set point. Press the button in
order to delete the error message.
NoAt Auto-tune not finished within 12 hours.
ErEP Possible problem in the instrument memory.
The message should automatically disappear, if the
error persists, send the instrument to your supplier.
RonE Possible problem of the firmware memory.
If this error is detected, send the instrument to your
supplier.
Errt Possible problem of the calibration memory.
If this error is detected, send the instrument to your
supplier.
E.P.rE Potentiometer reversed.
The message disappears as soon as the button is
pressed (the instrument returns to the P.cAL parameter).
no.Pt No potentiometer error.
The message disappears as soon as the button is
pressed (the instrument returns to the P.cAL parameter).
E.P.cA Potentiometer calibration error.
The message disappears as soon as the button is
pressed (the instrument returns to the P.cAL parameter).
10. GENERAL NOTES
10.1 PROPER USE
Every possible use not described in this manual must be
consider as a improper use.
This instrument is in compliance with EN 61010-1 “Safety
requirements for electrical equipment for measurement,
control and laboratory use”; for this reason it could not be
used as a safety equipment.
Whenever a failure or a malfunction of the control device
may cause dangerous situations for persons, thing or
animals, please remember that the plant has to be equipped
with additional safety devices.
Ascon Tecnologic S.r.l. and its legal representatives do not
assume any responsibility for any damage to people, things
or animals deriving from violation, wrong or improper use or
in any case not in compliance with the instrument’s features.
10.2 WARRANTY
This product is under warranty against manufacturing
defects or faulty materials that are found within 18 months
from delivery date. The warranty is limited to repairs or to the
replacement of the instrument.
The tampering of the instrument or an improper use of the
product will bring about the immediate withdrawal of the
warranty effects.
In the event of a faulty instrument, either within the period
of warranty, or further to its expiry, please contact our
sales department to obtain authorisation for sending the
instrument to our company.
The faulty product must be shipped to Ascon Tecnologic
with a detailed description of the faults found, without any
fees or charge for Ascon Tecnologic, except in the event of
alternative agreements.
10.3 MAINTENANCE
This instrument does not requires periodical recalibration
and it have no consumable parts so that no particular
maintenance is required.
Sometimes it is advisable to clean the instrument.
1. SWITCH THE EQUIPMENT OFF
(power supply, relay output, etc.).
2. Using a vacuum cleaner or a compressed air jet (max. 3
kg/cm2) remove all deposits of dust and dirt which may
be present on the case and on the internal circuits being
careful not to damage the electronic components.
3. To clean external plastic or rubber parts use only a cloth
moistened with:
• Ethyl Alcohol (pure or denatured) [C2H5OH] or
• Isopropyl Alcohol (pure or denatured) [(CH3)2CHOH]
or
• Water (H2O).
4. Make sure that there are no loose terminals.
5. Before turning ON the instrument make sure it is perfectly
dr y.
6. Apply the power supply to the instrument.

Ascon Tecnologic - KX 6 - ENGINEERING MANUAL - Vr. 0.1 PAG. 20
11. ACCESSORIES
The instrument has a lateral socket into which a special
tool can be inserted. This tool, named A01, allows:
–To store a complete instrument configuration and to use it
ti configure other instruments;
–To transfer a complete instrument configuration to a PC or
from a PC to an instrument;
–To transfer a complete instrument configuration from a PC
to an instrument;
–To transfer a configuration from an A01 to another one;
–To test serial interface of the instruments and to help the
OEM during machine start up.
Note: When the instrument is powered by the A01 key, the
outputs are NOT supplied.