Pixsys DRR227 User manual

DRR227
Controller / Regolatore
User manual / Manuale d’uso

User manual - DRR227 - 3
Index
1 Safety guide lines ..........................................................................................................................................5
2 Model Identication.....................................................................................................................................5
3 Technical Data...............................................................................................................................................5
3.1 General Features..................................................................................................................................5
3.2 Hardware Features..............................................................................................................................6
3.3 Software Features ...............................................................................................................................6
4 Dimensions and Installation......................................................................................................................7
5 Electrical wirings ...........................................................................................................................................7
5.1 Wiring diagram....................................................................................................................................8
6 Display and Keys Functions..................................................................................................................... 10
6.1 Numeric Indicators (Display) ........................................................................................................ 10
6.2 Meaning of Status Lights (Led) ..................................................................................................... 10
6.3 Keys........................................................................................................................................................11
7 Controller Functions...................................................................................................................................11
7.1 Modifying Main Setpoint and Alarm Setpoint Values.............................................................11
7.2 Auto-Tuning ........................................................................................................................................11
7.3 Manual Tuning...................................................................................................................................11
7.4 Automatic Tuning..............................................................................................................................12
7.5 Soft-Start..............................................................................................................................................12
7.6 Automatic/Manual Regulation for % Output Control ............................................................12
7.7 Digital input functions.....................................................................................................................12
7.8 Memory Card (optional) ..................................................................................................................13
7.9 Regulation control ............................................................................................................................13
8 Conguration...............................................................................................................................................15
8.1 Loading default values ....................................................................................................................15
9 Table of Conguration Parameters....................................................................................................... 16
10 Alarm Intervention Modes....................................................................................................................... 24
11 Table of Anomaly Signals......................................................................................................................... 26
12 Conguration EASY-UP ............................................................................................................................ 27
13 Summary of Conguration parameters .............................................................................................. 27

4 - DRR227 - Manuale d’uso
Sommario
1 Norme di sicurezza .................................................................................................................................... 30
2 Identicazione del modello..................................................................................................................... 30
3 Dati tecnici ................................................................................................................................................... 30
3.1 Caratteristiche generali .................................................................................................................. 30
3.2 Caratteristiche Hardware................................................................................................................31
3.3 Caratteristiche Software .................................................................................................................31
4 Dimensioni ed installazione.................................................................................................................... 32
5 Collegamenti elettrici................................................................................................................................ 32
5.1 Schema di collegamento................................................................................................................ 33
6 Funzione dei visualizzatori e tasti.......................................................................................................... 35
6.1 Indicatori numerici (Display) ........................................................................................................ 35
6.2 Signicato delle spie di stato (Led) .............................................................................................. 35
6.3 Tasti ...................................................................................................................................................... 36
7 Funzioni del regolatore ............................................................................................................................ 36
7.1 Modica valore setpoint principale e setpoint di allarme..................................................... 36
7.2 Auto-Tuning ...................................................................................................................................... 36
7.3 Lancio del Tuning Manuale ........................................................................................................... 36
7.4 Lancio del Tuning Automatico...................................................................................................... 37
7.5 Soft-Start............................................................................................................................................. 37
7.6 Regolazione automatico / manuale per controllo % uscita ................................................. 37
7.7 Funzioni da Ingresso digitale ........................................................................................................ 38
7.8 Memory Card (opzionale) .............................................................................................................. 38
7.9 Controllo di regolazione................................................................................................................. 38
8 Accesso alla congurazione.................................................................................................................... 40
8.1 Caricamento valori di default ........................................................................................................41
9 Tabella parametri di congurazione.....................................................................................................41
10 Modi d’intervento allarme....................................................................................................................... 49
11 Tabella segnalazioni anomalie.............................................................................................................. 52
12 Congurazione EASY-UP.......................................................................................................................... 52
13 Promemoria congurazione................................................................................................................... 53

User manual - DRR227 - 5
Introduction
Thank you for choosing a Pixsys controller.
With the DRR227 Pixsys model Pixsys makes available in a single device multiple
options related to sensor input and actuators command in addition to the extended
power range 24..230 Vac/Vdc. With the various selectable sensors and the output con-
gurable as relay or SSR command, the user or retailer can reduce stock by rationalising
investment and device availability
1 Safety guide lines
Read carefully the safety guidelines and programming instructions contained in
this manual before using/connecting the device. Disconnect power supply before
proceeding to hardware settings or electrical wirings. Only qualied personnel should
be allowed to use the device and/or service it and in accordance to technical data and
environmental conditions listed in this manual. Do not dispose electric tools together
with household waste material. In observance European Directive 2002/96/EC on
waste electrical and electronic equipment and its implementation in accordance with
national law, electric tools that have reached the end of their life must be collected
separately and returned to an environmentally compatible recycling facility.
2 Model Identication
Power supply 24..230 Vac/Vdc +/-15% 50/60 Hz – 5,5 VA
DRR227-12ABC 2 relays + 1 Out SSR + D.I.
DRR227-14ABC 3 Out SSR + 1 relays + D.I. + T.A.
3 Technical Data
3.1 General Features
Displays 4 0,40 inch displays + 4 0,30 inch displays
Operating tempera-
ture 0-45 °C - Humidity 35..95 uR%
Sealing IP65 front panel (with gasket)
IP20 box and terminals
Material PC ABS UL94VO self-extinguishing
Weight 130 g

6 - DRR227 - User manual
3.2 Hardware Features
Power supply 24..230 Vac/Vdc ±15%
50/60 Hz Consumption: 5.5 VA
Analogue input
1: AN1 Congurable via sof-
tware. Input: Thermocou-
ple type K, S, R, J, T, E, N, B.
Automatic compensation of
cold junction from 0..50°C.
Thermoresistance: PT100,
PT500, PT1000, Ni100,
PTC1K, NTC10K (β 3435K).
Input V/I: 0-10 V, 0-20 or
4-20 mA, 0-60 mV.
Pot. input: 6 k, 150 k
Tolerance (25 °C)
+/-0.3% ±1 digit (su F.s.) for ther-
mocouple, thermoresistance and
V / mA.
Cold junction accuracy 0.1 °C/°C
Impedence:
0-10 V: Ri>110 k
0-20 mA: Ri<50 
4-20 mA: Ri<50 
0-60 mV: Ri>500 k
Relay outputs
2relays.
Congurable as command
and/or alarm output
Contacts
5 A - 250 V~.
Resistive load
SSR output
1SSR.
Congurable as command
output and/or alarm output
+12Vdc ±15%/ 30mA
3.3 Software Features
Regulation
algorithms
ON-OFF with hysteresis.
P, P.I., PID, P.D. with proportional time
Proportional band 0..9999 °C o °F
Integral time 0,0..999,9 sec. (0 excluded)
Derivative time 0,0..999,9 sec. (0 excluded)
Controller functions
Manual or automatic Tuning, selectable alarm, protection of
command and alarm setpoints, activation of functions via
digital input

User manual - DRR227 - 7
4 Dimensions and Installation
72 mm 64 mm
90 mm
Attacco a guida DIN EN50022
Din rail mounting guide EN50022
Morsettiere Estraibili
Extractable terminal blocks
A 3 MAN TUN REM
C 1
C 2
A 1
A 2
Memory Card USB
(optional)
Cod. 2100.30.013
5 Electrical wirings
Although this controller was designed to resist electromagnetic interferences
in industrial environments, please observe following safety guidelines:
• Separatethecontrollinefromthepowerwires.
• Avoidproximityofremotecontrolswitches,electromagneticcontactors,powerful
engines and in all instances use specic lters.
• Avoidproximityofpowergroups,especiallythosewithphasecontrol.

8 - DRR227 - User manual
5.1 Wiring diagram
DRR227-12ABC
Power Supply
24
23
Switching power supply with extended range 24..230 Vac/dc
±15% 50/60 Hz – 5,5 VA (galvanically insulated)
AN1 Analogue Input
13
14
AI1 TC
Shield/Schermo
For thermocouples K, S, R, J, T, E, N, B.
• Complywithpolarity
• Forpossibleextensions,usecompensatedcable
and terminals suitable for the thermocouples
used(compensated)
• Whenshieldedcableisused,itshouldbegroundedatone
side only
13
14
15
AI1
PT/NI100
Shield/Schermo
Rosso
Red
Bianco
White
Rosso
Red
For thermoresistances PT100, Ni100.
• For the three-wire connection use wires with the same section
• Forthetwo-wireconnectionshort-circuitterminals1and3
• Whenshieldedcableisused,itshouldbegroundedatone
side only
RED
ROSSO
RED
ROSSO
WHITE
BIANCO
13
14
15
14
15
AI1
Shield/Schermo
PTC/NTC
For thermoresistances NTC, PTC, PT500, PT1000 and linear
potentiometers
When shielded cable is used, it should be grounded at one
side only to avoid ground loop currents
13
14
16
AI1 V
mA
+Vdc
30 mA
Shield/Schermo
For linear signals in Volt and mA
+Vdc = 12Vdc ±15%/ 30mA
Comply with polarity
When shielded cable is used, it should be grounded at one
side only to avoid ground loop currents

User manual - DRR227 - 9
Examples of connection for Volt and mA inputs
PRESSURE TRANSMITTER /
SENSORE DI PRESSIONE
P :0...100mbar Pmax :3bar T :0..70°C
OUT : 4...20mA IN :9...33VDC
16
14
13
B
C
A
4...20mA
For linear signals 0/4..20 mA with three-wires
sensors.
Comply with polarity:
A= Sensor output
B= Sensor ground
C= Sensor supply (+12Vdc ±15%/ 30mA)
External supply /
Alimentazione esterna
P :0...100mbar Pmax :3bar T :0..70°C
OUT : 4...20mA IN :9...33V DC
PRESSURE TRANSMITTER /
SENSORE DI PRESSIONE
14
13
C
B
4...20mA
For linear signals 0/4..20 mA with external power
supply for sensor.
Comply with polarity:
A= Sensor output
B= Sensor ground
P :0...100mbar Pmax :3bar T :0..70°C
OUT : 4...20mA IN :9...33V DC
13
16
C
A
PRESSURE TRANSMITTER /
SENSORE DI PRESSIONE
4...20mA
For linear signals 0/4..20 mA with two-wires sensors.
Comply with polarity:
A= Sensor output
C= Sensor supply (+12Vdc ±15%/ 30mA)
Relay Q1 - Q2 output
Q1
5A
230V
1
2
3
Q2
5A
230V
4
5
6
Contacts capacity 5 A / 250 V~ resistive loads.
NB: see graphic below
50
20
10
5
012 3 4
Contact load current (A)
5
Service life (x10
4
operations)
100
AC125 V
AC125V COS ø=0.4
DC30 V t=7ms
Life Curve
AC250V COS ø=0.4
DC30 V t=15ms
200
AC250V
DC30 V
Electrical endurance Q1 / Q2.
5A, 250 Vac, resistive load, 105operations
20/2 A, 250 Vac, cosφ = 0.3, 105operations

10 - DRR227 - User manual
SSR output
8
7SSR command output +12Vdc ±15%/ 30mA
Digital Input
17
18
D.I.
NPN digital input
Digital input according to parameter dGti.
To activate the digital input, shortcircuit pins 17 and 18
6 Display and Keys Functions
A 3
MAN TUN REM
C 1
C 2
A 1
A 2
3
4
5
8
9
2
1
6
7
10
6.1 Numeric Indicators (Display)
1
1234
Normally displays the process. During conguration phase, it
displays the parameter being entered
2
1234
Normally displays the setpoint. During conguration phase, it
displays the parameter value being entered
6.2 Meaning of Status Lights (Led)
3C1 ON when the output command is on
4A1 A2 ON when the corresponding alarm is active
5MAN ON when the “Manual” function is on
6TUN ON when the controller is running an “Autotuning” cycle
7REM ON when the controller communicates via serial port (USB)

User manual - DRR227 - 11
6.3 Keys
8
• Increases main setpoint
• During conguration phase, allows to slide through parameters. Together
with SET it modies them
• Pressed after
SET
increases alarm setpoint
9
• Decreases main setpoint
• During conguration phase, allows to slide through parameters. Together
with SET it modies them
• Pressed after
SET
decreases alarm setpoint
10 SET • AllowstodisplayalarmsetpointsandrunstheTuningfunction
• Allowstomodifycongurationparameters
7 Controller Functions
7.1 Modifying Main Setpoint and Alarm Setpoint Values
Setpoint value can be modied by keyboard as follows:
Press Display Do
1or Value on display 2 changes Increase or decrease main setpoint
2SET Visualizes alarm setpoint on
display 
3or Value on display 2 changes Increase or decrease the alarm
setpoint value
7.2 Auto-Tuning
Tuning procedure to calculate regulation parameters can be manual or automatic accor-
ding to selection on parameter 8 (
P.i.d. ).
7.3 Manual Tuning
Manual procedure allows the user a greater exibility to decide when to update PID
algorithm parameters. After selected
MAn. on parameter 8 ( P.i.d. ), the procedure can be
activated in two ways:
• Running Tuning by keyboard:
Press SET until display 1 shows the writing tunE with display 2 showing oFF , press ,
display 2 shows on .
TUN led switches on and the procedure starts.
• Running Tuning by digital input:
Select tunE on parameter 25 dGt.i . At rst activation of digital input (commutation on
front panel)
TUN led switches ON while at second activation switches o.

12 - DRR227 - User manual
7.4 Automatic Tuning
Automatic tuning procedure has been conceived to give user the possibility to have
a clear regulation also without knowledge of PID regulation algorithm. Setting Auto
on parameter 8 P.i.d. , the controller will check process oscillations and will modify PID
parameters.
7.5 Soft-Start
At starting the controller can follow a gradient expressed in units (ex. Degree/Hour) to
reach the setpoint.
Enter this gradient on parameter 21 SFt.G. with the chosen units/hour: at next activation
the controller will execute the Soft-Start function.
If parameter 24 S.tiM. is dierent from 0, after switch-on and elapsing of the time set
on parameter 24 , setpoint does not follow the gradient anymore, but it reaches nal
setpoint with maximum power.
7.6 Automatic/Manual Regulation for % Output Control
This function allows to select automatic functioning or manual command of the output
percentage.
By parameter 69 Au.ma. it is possible to select two modes.
1 First selection ( en. ) pressing SET display 1 shows p.--- , while on display 2 appears
auto.
Press to select man mode; it is now possible to modify the output percentage
using and . To back to automatic mode, using the same procedure, select
auto on display 2: MAN led switches o and functioning backs to auomatic.
2 Second selection ( en.st. ) enables the same functioning, but with two important
variants:
• If there is a temporary power failure or after switch-o, manual functioning as well as the
previous output percentage value will be maintained at restarting.
• If the sensor breaks during automatic functioning, controller moves to manual mode
while maintaining the output percentage command unchanged as generated by the PID
immediately before breakage.
Ex: on an extruder the resistance percentage command (load) is kept also in case of
input sensor failure.
7.7 Digital input functions
On DRR227 digital input can be enabled by parameter 25 dGt.i.
• 2.SPv. : Switch between two setpoint thresholds: with digital input active DRR227
regulates on SET2, otherwise on SET1;
• run. : Regulation is enabled only with digital input active;
• tune : Enables/disables Tuning, if parameter 8 P.i.d. is set on man. ;
• au.ma. : (Automatic/Manual) if par. 19 au.ma. is set on en. or en.st. , DRR227 regulates in

User manual - DRR227 - 13
manual mode if digital input active, otherwise the regulation is automatic.
• Act.t. : (Action Type) heating regulation with inactive digital input; Cooling
regulation with active digital input;
• o.rSt : (Outputs Reset) allows to reset the outputs if Manual reset should be
congured for command output and/or alarm outputs.
7.8 Memory Card (optional)
Parameters and setpoint values can be easily copied from one controller to
others using the MEMORY CARD.
Enter the Memory Card with the controller not connected to power supply.
At starting display 1 visualizes memo while display 2 visualizes SkiP (only if
into the Memory are stored correct values). Pressing display 2 visualizes
Load . Press SET to conrm. The controller loads the new values and restarts.
NB: parameters may be copied only on controllers of the same model!
Updating Memory Card.
To update the memory card values, follow the procedure previously described, setting
SkiP on display 2 so as not to load the parameters on controller.
Enter conguration (password 1234): Exiting conguration mode, the settings will be
automatically saved on Memory card.
7.9 Regulation control
DRR227 integrates dierent types of control for the regulation of the SSR command
output, selecting parameter 43 o.cL.t. as follows:
ti M E Time control
Activation and deactivation of the output is related to the time selected on parameter
52 c.t. . Ex. selecting a time of 10s and supposing a 30% percentage, the output will
remain active for 3s and inactive for 7s.
bS t . F. Burst re control
The “Burst-re” control (1 cycle) is a duty cycle mode which consists of supplying a
series of complete mains voltage cycles to the load.

14 - DRR227 - User manual
t
Load voltage
TF
0
TM
TNF
t
TF
0
TM
TNF
t
TF
0
TM
TNF
50% power TF= TNF
25% power TNF = 3 TF
0
75% power TF= 3 TNF
At 50% power, the modulation time is 40ms:
• 1ringcycle(20msat50Hz)
• 1ringcycle(20msat50Hz)
For a setpoint less than 50% :
• Theringtimeremainsconstant(1cycle)
• Thenon-ringandmodulationtimeincr
eases
For a setpoint greater than 50%:
• The non-ring time remains constant (1 cycle)
• Theringandmodulationtimeincreases
A. b t . F. Advanced Burst re control
In order to minimise power uctuation during the modulation period, the “advanced
Burst re” SSR output ring mode uses:
· A complete number of cycles for ring
· A complete number of half-cycles for non-ring
Load
voltage
t
TF
TM
TNF
t
TF
0
T
M
TNF
0
Standard Single-Cycle (1 cycle Burst-firing)
Advanced Single-cycle
Load
voltage
For a percentage less than 66%, SSR output
ring takes place as in the “Burst re” mode
(see bSt.F. )
For a setpoint greater than 66% in “Advanced
Burst re” mode:
· The non-ring time is constant at one
half-cycle
· Firing takes place over whole cycles
In a ‘short-wave infrared’ application,
‘advanced Burst re’ ring mode reduces the
brightness of the infrared elements and thus
minimises annoying visual ickering
In a short-wave infrared application, “advanced Burst re” ring mode reduces the
brightness of the infrared elements and thus minimises annoying visual ickering.
PHs .A. Phase angle control
If this mode is active, the regulation is done through the phase choking
25% Power
50% Power
75% Power
100% Power
Using a no zero-crossing SSR, the DRR227
synchronizes with the power supply volage
(necessarily AC) and determines when
to activate the output to create the right
choking

User manual - DRR227 - 15
F.PH.A. Fixed Phase angle control
If this mode is active, the regulation is done as per “time control” ( tiME ), but during the
activation it is managed a xed choking selected on parameter 45 F.P.A.P. .
8 Conguration
For conguration parameters see par. 10.
Press Display Do
1SET
for 3 sec.
Display 1 shows
0000 with
the 1st digit ashing, while
display 2 shows PASS
2or
Modify the ashing digit
and move to the next one
pressing SET
Enter password 1234
3SET
to conrm
Display 1 shows the rst
parameter while display 2
shows the value
4or Slide up/down through
parameters
5SET
or
Increase or decrease the
visualized value pressing SET
and an arrow key
Enter the new data which
will be saved on releasing
the keys. To change another
parameter return to point 4
6+
togheter
End of conguration para-
meter change.
The controller exits from
programming
8.1 Loading default values
This procedure allows to restore factory settings of the device.
Press Display Do
1SET
for 3 sec
Display 1 shows
0000 with
the 1st digit ashing, while
display 2 shows PASS
2or
Modify the ashing digit
and move to the next one
pressing SET
Enter password 9999
3SET
to conrm
The device loads default
settings
Turn o and restart the
device

16 - DRR227 - User manual
9 Table of Conguration Parameters
The parameters list below can be entered by passwords 1234 (for standard) and 5678
(for advanced). Enter password 1357 to access the complete list
1 SEN. Sensor (Password 1234)
Analogue input conguration
Tc.K Tc-K (Default) -260 °C..1360 °C
Tc.s Tc-S -40 °C..1760 °C
Tc.r Tc-R -40 °C..1760 °C
Tc.j Tc-J -200 °C..1200 °C
Tc.t Tc-T -260 °C..400 °C
Tc.E Tc-E -260 °C..980 °C
Tc.n Tc-N -260 °C..1280 °C
Tc.b Tc-B 100 °C..1820 °C
Pt Pt100 -100 °C..600 °C
Pt1 Pt100 -100 °C..140 °C
ni Ni100 -60 °C..180 °C
ntc NTC10K -40 °C..125 °C
Ptc PTC1K -50 °C..150 °C
Pts Pt500 -100 °C..600 °C
Pt1k Pt1000 -100 °C..600 °C
0-10 0..10 V
0-20 0..20 mA
4-20 4..20 mA
0-60 0..60 mV
Pot.1 Potenziometri no a 6 kOhm
Pot.2 Potenziometri no a 150 kOhm
2 d . P. Decimal Point (Password 1234)
Select number of displayed decimal points
0 No displayed decimal Default
0.0 1 decimal
0.00 2 decimals
0.000 3 decimals
3 d e G r. Degree (Password 1234)
Select degree type
c Celsius (Default)
f Fahrenheit

User manual - DRR227 - 17
4 Lo .L.i . Lower Linear Input (Password 1234)
Analogue input lower range limit only for linear signals. Ex.: with input 4...20 mA
this parameter takes value associated to 4 mA.
-999..+9999 [digit1] (degrees.tenths for temperature sensors), Default: 0.
5 u p.L.i . Upper Linear Input (Password 1234)
Analogue input upper range limit only for linear signals. Ex.: with input 4...20 mA
this parameter takes value associated to 20 mA.
-999..+9999 [digit1] (degrees.tenths for temperature sensors).Default:1000
6 c.out Command Output (Password 1234)
Select command output type
c. o1 Command on Q1 relay output Default. (Q2->AL1; SSR->AL2)
c.SSr Command on SSR output (Q1->AL1; Q2->AL2)
c.o1.2 Command on Q1 and Q2 output (Q1 n.o.; Q2 n.c; SSR->AL1)
7 Act. t. Action type (Password 1234)
Heat Heating (N.A.) (Default)
cooL Cooling (N.C.)
8 P.i . d . PID (Password 1234)
Select functioning (on/o or PID) and autotuning type
diS. Disabled (on/o) (Default)
Auto Automatic (PID automatic calculation of parameters)
uSER User (PID parameters calculated by manual tune or tune once)
once Once (PID parameters calculation only once at starting)
Man. Manual (PID automatic parameters calculation by keyboard)
9 Lo .L.S. Lower Limit Setpoint (Password 1234)
-999..+9999 [digit1] (degrees.tenths for temperature sensors), Default: 0.
10 u p.L.S. Upper Limit Setpoint (Password 1234)
-999..+9999 [digit1] (degrees.tenths for temperature sensors), Default: 1750.
11 o . cAL. Oset Calibration (Password 5678)
Value added/subtracted to the process value (ex: usually correcting the ambient
temperature value).
-999..+1000 [digit1] for linear sensors and potentiometers.
-200.0..+100.0 (degrees.tenths for temperature sensors),
Default 0.0.

18 - DRR227 - User manual
12 G. c a L. Gain Calibration (Password 5678)
Value multiplied to the process value to calibrate the working point. Ex: to correct
the range from 0...1000°C showing 0...1010°C, set the parameter to -1.0.
-99.9% ..+100.0% , Default: 0.0.
13 c. HY. Command Hysteresis (Password 1234)
Hysteresis in ON/OFF
-999..+999 [digit1] (degrees.tenths for temperature sensors). Default 0.2.
14 c. Ld. Command Led (Password 5678)
State of the OUT1 led corresponding to the relevant contact
o.c. ON with open contact
c.c. ON with closed contact (Default)
15 c. S. e. Command State Error (Password 5678)
State of contact for command output in case of error
o.c. Open contact (Default)
c.c. Closed contact
16 c. s. p. Command Setpoint Protection (Password 1234)
Allows/denies modications of command setpoint value
free Modiable by the user (Default)
Lock Locked
17 c. re. Command Reset (Password 5678)
Type of reset for command contact (always automatic in PID functioning)
are. Automatic Reset (Default)
mre. Manual Reset
mre.s. Manual Reset Stored (keeps relay status also after an eventual power
failure)
18 c. d e. Command Delay (Password 5678)
Command delay (only in ON / OFF functioning).
-900..+900 seconds.. Default: 0.
Negative: delay in switching o phase.
Positive: delay in activation phase.
19 au.ma. Automatic / Manual (Password 1234)
Enables automatic/manual selection.
dis. Disabled (Default)
En. Enabled
En.St. Enabled stored

User manual - DRR227 - 19
21 Sft.G. Softstart Gradient (Password 5678)
Rising gradient for Soft-Start
0 Disabled. Default
1-9999 (degrees/hour).
24 S.tim. Softstart Time (Password 5678)
Max. Softstart duration: the process will follow the gradient only for the time set
on parameter, than moves to the max. power.
00.00 Disabled. Default
00.01-24.00 hh.mm
25 d G t.i . Digital Input (Password 1234)
Digital input functioning (see par. 7.7)
dis. Disabled (Default)
2.Spv 2 setpoint thresholds
run Run
tunE Tune (impulsive digital input). Parameter 8 P.i.d. must be set as MAn.
Au.MA. Automatic/Manual
Act.t. Regulation type
o.rSt Output reset (impulsive digital input)
26 d.i.c.t. Digital Input Contact Type (Password 1234)
Select the digital input inactive contact.
o.c. Open contact (Default)
c.c. Closed contact
27 A L.1 Alarm 1 (Password 1234)
Alarm 1 selection.
dis. Disabled (Default)
A. AL. Absolute / threshold, referring to process
b. AL. Band alarm
H.d.AL. Upper deviation alarm
L.d.AL. Lower deviation alarm
28 A . I. 5 . o Alarm 1 State Output (Password 1234)
Alarm 1 output contact and intervention type.
n.o. s. (N.O. Start) Normally open, active at start (Default)
n.c. s. (N.C. Start) Normally closed, active at start
n.o. t. (N.O. Threshold) Normally open, active on reaching alarm 1
n.c. t. (N.C. Threshold) Normally closed, active on reaching alarm1
1 On activation, the output is inhibited if the controller is in alarm mode. Activates only if alarm
condition reappers, after that it was restored..

20 - DRR227 - User manual
29 a .1 . H y . Alarm 1 Hysteresis (Password 1234)
-99.9..99.9 °C/°F. Default: 0.5.°C
30 a.1.Ld. Alarm 1 Led (Password 5678)
Denes the state of A1 led corresponding to the relative contact
o.c. ON with open contact
c.c. ON with closed contact (Default)
31 a .1 . s . e . Alarm 1 State Error (Password 5678)
State of contact for alarm 1 output in case of error
o.c. Open contact (Default)
c.c. Closed contact
32 a .1 . s p . Alarm 1 Setpoint Protection (Password 1234)
Does not allow the user to modify setpoint
free Modiable by the user (Default)
Lock Locked
Hide Locked and hidden
33 a1 . r e . Alarm 1 Reset (Password 5678)
Type of Reset for contact of alarm 1
are. Automatic Reset (Default)
mre. Manual reset (by keyboard) SET
mre.s. Manual Reset Stored (keeps relay status also after an eventual power
failure)
34 a .1 . d e . Alarm 1 Delay (Password 5678)
-900..+900 secondi. Default: 0.
Negative: delay in alarm output phase
Positive: delay in alarm entry phase.
35 AL. 2 Alarm 2 (Password 1234)
Alarm 2 selection.
dis. Disabled (Default)
A. AL. Absolute / threshold, referring to process
b. AL. Band alarm
H.d.AL. Upper deviation alarm
L.d.AL. Lower deviation alarm