Pixsys DRR460 Series User manual

DRR460
Controller / Regolatore
User manual - Manuale uso

User manual - DRR460 - 3
Table of contents
1 Safety guidelines.......................................................................................................................................................... 5
1.1 Organization of safety notices.................................................................................................................. 5
1.2 Safety Precautions ....................................................................................................................................... 5
1.3 Precautions for safe use.............................................................................................................................. 6
1.4 Environmental policy / WEEE .................................................................................................................... 6
2 Model identification.................................................................................................................................................... 7
3 Technical data............................................................................................................................................................... 7
3.1 Main features ................................................................................................................................................ 7
3.2 Hardware Features ...................................................................................................................................... 7
3.3 Software features......................................................................................................................................... 7
4 Dimensions and Installation..................................................................................................................................... 8
5 Electrical wirings .......................................................................................................................................................... 8
5.1 Wiring diagram............................................................................................................................................. 8
5.1.a Power Supply...................................................................................................................................... 8
5.1.b Analogue Input.................................................................................................................................. 9
5.1.c Examples of connection for Volt and mA inputs....................................................................... 9
5.1.d Serial input.......................................................................................................................................... 9
5.1.e CT input ............................................................................................................................................. 10
5.1.f Digital outputs................................................................................................................................. 10
5.1.g Analogue output............................................................................................................................. 10
6 Leds and key function............................................................................................................................................... 10
6.1 Meaning of status lights (LED) ................................................................................................................ 10
6.2 Key.................................................................................................................................................................. 10
6.3 Dip switch..................................................................................................................................................... 11
7 Controller functions .................................................................................................................................................. 11
7.1 Loading default values ............................................................................................................................. 11
7.2 Controller Start / Stop and setpoint modification.............................................................................. 11
7.3 Automatic tuning....................................................................................................................................... 11
7.4 Manual tuning ............................................................................................................................................ 11
7.5 AutoTuning Launch “Once” ..................................................................................................................... 12
7.6 Synchronized tuning ................................................................................................................................. 12
7.7 Automatic/Manual regulation for % output control ........................................................................ 12
7.8 Heater Break Alarm on CT (Current Transformer) .............................................................................. 12
7.9 Dual Action Heating-Cooling ................................................................................................................. 13
7.10 Soft-Start function ..................................................................................................................................... 14
7.11 Retransmission function on analogue output.................................................................................... 14
7.12 LATCH ON Function ................................................................................................................................... 14
7.13 Expansion function.................................................................................................................................... 15
8 Serial communication .............................................................................................................................................. 15
9 Regulation control..................................................................................................................................................... 19
9.a 0 Time control.................................................................................................................................................... 19
9.b 1 and 3 Burst fire control................................................................................................................................. 19
9.c 2 and 4 Advanced Burst fire control.............................................................................................................20
10 Table of configuration parameters........................................................................................................................20
11 Alarm Intervention Modes....................................................................................................................................... 31
11.a Absolute Alarm or Threshold Alarm (word 2056 = 1)............................................................................... 31
11.b Absolute alarm or threshold alarm referring to command setpoint (word 2056 = 6)..................... 31
11.c Band alarm (word 2056 = 3) ..........................................................................................................................32
11.d Upper deviation alarm (word 2056 = 4)...................................................................................................... 32
11.e Lower deviation alarm (word 2056 = 5)...................................................................................................... 32
12 Table of Anomaly Signals.........................................................................................................................................33

4 - DRR460 - Manuale d’uso
Indice degli argomenti
1 Norme di sicurezza .................................................................................................................................................... 37
1.1 Organizzazione delle note di sicurezza ................................................................................................ 37
1.2 Precauzioni per l’uso sicuro .....................................................................................................................38
1.3 Tutela ambientale e smaltimento dei rifiuti / Direttiva WEEE .........................................................38
2 Identificazione del modello.....................................................................................................................................39
3 Dati tecnici...................................................................................................................................................................39
3.1 Caratteristiche generali ............................................................................................................................39
3.2 Caratteristiche hardware .........................................................................................................................39
3.3 Caratteristiche software ........................................................................................................................... 39
4 Dimensioni ed installazione....................................................................................................................................40
5 Collegamenti elettrici................................................................................................................................................40
5.1 Schema di collegamento..........................................................................................................................40
5.1.a Alimentazione..................................................................................................................................40
5.1.b Ingresso analogico ......................................................................................................................... 41
5.1.c Esempi di collegamento per ingressi Volt e mA....................................................................... 41
5.1.d Ingresso seriale ................................................................................................................................ 41
5.1.e Ingresso per trasformatore amperometrico.............................................................................42
5.1.f Uscite digitali.................................................................................................................................... 42
5.1.g Uscita analogica..............................................................................................................................42
6 Funzione dei led e del tasto .....................................................................................................................................42
6.1 Significato delle spie di stato (led).......................................................................................................... 42
6.2 Tasto ..............................................................................................................................................................42
6.3 Dip switch.....................................................................................................................................................43
7 Funzioni del regolatore.............................................................................................................................................43
7.1 Caricamento valori di default .................................................................................................................43
7.2 Start / Stop del regolatore e modifica setpoint................................................................................... 43
7.3 Tuning “Automatico”.................................................................................................................................43
7.4 Lancio dell’AutoTuning “Manuale”........................................................................................................43
7.5 Lancio dell’AutoTuning “Once” ...............................................................................................................44
7.6 Tuning “sincronizzato”..............................................................................................................................44
7.7 Regolazione automatico / manuale per controllo % uscita............................................................44
7.8 Heater Break Alarm su CT(Trasformatore Amperometrico) ............................................................44
7.9 Funzionamento in doppia azione (caldo-freddo)..............................................................................45
7.10 Funzione Soft-Start....................................................................................................................................46
7.11 Funzione ritrasmissione su uscita analogica.......................................................................................46
7.12 Funzione LATCH ON...................................................................................................................................46
7.13 Funzione espansione................................................................................................................................. 47
8 Comunicazione Seriale............................................................................................................................................. 47
9 Controllo di regolazione........................................................................................................................................... 52
9.a 0 Controllo a tempo .........................................................................................................................................52
9.b 1 e 3 Burst fire control ...................................................................................................................................... 52
9.c 2 e 4 Advanced Burst fire control...................................................................................................................52
10 Tabella parametri di configurazione..................................................................................................................... 53
11 Modi d’intervento allarme.......................................................................................................................................64
11.a Allarme assoluto o allarme di soglia attivo sopra (word 2056 = 1)......................................................64
11.b Allarme assoluto o allarme di soglia riferito al setpoint di comando attivo sopra (word 2056 = 6).
64
11.c Allarme di Banda (word 2056 = 3)................................................................................................................64
11.d Allarme di deviazione superiore (word 2056 = 4).....................................................................................65
11.e Allarme di deviazione inferiore (word 2056 = 5).......................................................................................65
12 Tabella segnalazioni anomalie ..............................................................................................................................65

User manual - DRR460 - 5
Introduction
Thanks for choosing a Pixsys controller.
The DRR460 series integrates in a single device the main elements of the control loop: reading of
temperature sensor, control output by SSR module, reading and control of the current on the load by
means of integrated current CT. Serial communication RS485 and ModbusRTU or CANopen protocol
allow the connection to PC/HMI Panels for supervisory functions/remote control.
This device is provided with alarms functions, management of double action installation and possibility
to be used as expansion controlled by PLC.
1 Safety guidelines
Read carefully the safety guidelines and programming instructions contained in this manual before
connecting/using the device.
Disconnect power supply before proceeding to hardware settings or electrical wirings to avoid risk of
electric shock, fire, malfunction.
Do not install/operate the device in environments with flammable/explosive gases.
This device has been designed and conceived for industrial environments and applications that rely
on proper safety conditions in accordance with national and international regulations on labour
and personal safety. Any application that might lead to serious physical dama ge/ life risk or involve
medical life support devices should be avoided.
Device is not conceived for applications related to nuclear power plants, weapon systems, flight
control, mass transportation systems.
Only qualified personnel should be allowed to use device and/or service it and only in accordance to
technical data listed in this manual.
Do not dismantle/modify/repair any internal component.
Device must be installed and can operate only within the allowed environmental conditions.
Overheating may lead to risk of fire and can shorten the lifecycle of electronic components.
1.1 Organization of safety notices
Safety notices in this manual are organized as follows:
Safety notice Description
Danger! Disregarding these safety guidelines and notices can be life-threatening.
Warning! Disregarding these safety guidelines and notices can result in severe injury or
substantial damage to property.
Information! This information is important for preventing errors.
1.2 Safety Precautions
Danger!
CAUTION - Risk of Fire and Electric Shock
This product is UL listed as Open Type Process Control Equipment. It must be
mounted in an enclosure that does not allow fire to escape externally.
Danger!
If the output relays are used past their life expectancy, contact fusing or burning may
occasionally occur.
Always consider the application conditions and use the output relays within their
rated load and electrical life expectancy. The life expectancy of output relays varies
considerably with the output load and switching conditions.
Warning!
Devices shall be supplied with limited energy according to UL 61010-1 3rd Ed, section
9.4 or LPS in conformance with UL 60950-1 or SELV in conformance with UL 60950-1
or Class 2 in compliance with UL 1310 or UL 1585.
Warning! Loose screws may occasionally result in fire.
For screw terminals, tighten screws to tightening torque of 0.5 Nm

6 - DRR460 - User manual
Warning!
A malfunction in the Digital Controller may occasionally make control operations
impossible or prevent alarm outputs, resulting in property damage. To maintain
safety in the event of malfunction of the Digital Controller, take appropriate safety
measures, such as installing a monitoring device on a separate line.
1.3 Precautions for safe use
Be sure to observe the following precautions to prevent operation failure, malfunction, or adverse
affects on the performance and functions of the product. Not doing so may occasionally result in
unexpected events. Do not handle the Digital Controller in ways that exceed the ratings.
• The product is designed for indoor use only. Do not use or store the product outdoors or in any of
the following places.
- Places directly subject to heat radiated from heating equipment.
- Places subject to splashing liquid or oil atmosphere.
- Places subject to direct sunlight.
- Places subject to dust or corrosive gas (in particular, sulfide gas and ammonia gas).
- Places subject to intense temperature change.
- Places subject to icing and condensation.
- Places subject to vibration and large shocks.
• Installing two or more controllers in close proximity might lead to increased internal temperature
and this might shorten the life cycle of electronic components. It is strongly recommended to
install cooling fans or other air-conditioning devices inside the control cabinet.
• Always check the terminal names and polarity and be sure to wire properly. Do not wire the
terminals that are not used.
• To avoid inductive noise, keep the controller wiring away from power cables that carry high voltages
or large currents. Also, do not wire power lines together with or parallel to Digital Controller
wiring. Using shielded cables and using separate conduits or ducts is recommended. Attach a
surge suppressor or noise filter to peripheral devices that generate noise (in particular motors,
transformers, solenoids, magnetic coils or other equipment that have an inductance component).
When a noise filter is used at the power supply, first check the voltage or current, and attach the
noise filter as close as possible to the Digital Controller. Allow as much space as possible between
the Digital Controller and devices that generate powerful high frequencies (high-frequency
welders, high-frequency sewing machines, etc.) or surge.
• A switch or circuit breaker must be provided close to device. The switch or circuit breaker must be
within easy reach of the operator, and must be marked as a disconnecting means for the controller.
• The device must be protected by a fuse 1 A (cl. 9.6.2).
• Wipe off any dirt from the Digital Controller with a soft dry cloth. Never use thinners, benzine,
alcohol, or any cleaners that contain these or other organic solvents. Deformation or discoloration
may occur.
• The number of non-volatile memory write operations is limited. Therefore, use EEprom write mode
when frequently overwriting data, e.g.: through communications.
1.4 Environmental policy / WEEE
Do not dispose electric tools together with household waste material.
According to European Directive 2012/19/EU 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.

User manual - DRR460 - 7
2 Model identification
DRR460-12A-T128 Power supply 24Vdc ±15% + 1 analogue input + 2 logic output 24Vdc/50mA
+ 1 output 0/4...20mA + RS485 +C.T.
DRR460-12A-CAN Power supply 24Vdc ±15% + 1 analogue input + 2 logic output 24Vdc/50mA
+ 1 output 0/4...20mA + CANopen +C.T.
3 Technical data
3.1 Main features
Operating
temperature 0-45°C, humidity 35..95uR%
Contenitore DIN43880, 18 x 90 x 64 mm
Material Box: PC UL94V0 self-extinguishing; front panel: PC UL94V0 self-extinguishing
Protezione IP20 (box and terminal blocks)
Peso Approx. 30 g
3.2 Hardware Features
Power supply 24 VDC ±15% Consumption: 3 VA
Analogue input
1: AN1 Configurable via software.
Input: Thermocouple 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: Configurable 1..150kΩ,
1: C.T.: 50 mAAC 50/60 Hz
Tolerance (25 °C)
+/-0.3% ±1 digit (su F.s.) for
thermocouple, thermoresistance and
V / mA.
Cold junction accuracy 0.1 °C/°C
Impedence:
0-10 V: Ri>110 kΩ
0-20 mA: Ri<50 Ω
4-20 mA: Ri<50 Ω
0-60 mV: Ri>500 kΩ
Logic output
2SSR.
Configurable as command or alarm
output
+24VDC ±15%/ 50mA
Analogue output
10/4..20 mA.
Configurable as command output,
alarm output or retransmission
0..20 mA:
42500 points, ±0.3% on F.S.
4..20 mA
34000 points, ±0.3% on F.S.
3.3 Software features
Regulation
algorithms
ON-OFF with hysteresis.
P, PI, PID, PD proportional time.
Proportional band 0..999°C or °F
Integral time 0,0..999,9 s (0 excludes integral function)
Derivative time 0,0..999,9 s (0 excludes derivative function)
Controller functions Manual or automatic tuning, configurable alarm, Start/Stop.

8 - DRR460 - User manual
4 Dimensions and Installation
RUN
OUT1
OUT2
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
RUN
OUT1
OUT2
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
ON ON
8
7
6
5
4
3
2
1
4
3
2
1
ON ON
8
7
6
5
4
3
2
1
4
3
2
1
64 mm
Attacco a guida DIN EN50022
Din rail mounting guide EN50022
18 mm
90 mm
64 mm
Attacco a guida DIN EN50022
Din rail mounting guide EN50022
18 mm
90 mm
DRR460-12A-T128 DRR460-12A-CAN
5 Electrical wirings
This controller has been designed and manufactured in conformity to Low Voltage Directive 2014/35/
EU (LVD) and EMC Directive 2014/30/EU (EMC). For installation in industrial environments please
observe following safety guidelines:
• Separate control line from power wires.
• Avoid proximity of remote control switches, electromagnetic contactors, powerful engines and use
specific filters.
• Avoid proximity of power groups, especially those with phase control.
• It is strongly recommended to install adequate mains filter on power supply of the machine where
the controller is installed, particularly if supplied 230Vac. The controller is designed and conceived
to be incorporated into other machines, therefore CE marking on the controller does not exempt
the manufacturer of machines from safety and conformity requirements applying to the machine
itself.
• Wiring of pins use crimped tube terminals or flexible/rigid copper wire with diameter 0.25 to 1.5
mm2 (min. AWG28, max. AWG16, operating temperature: min. 70°C). Cable stripping lenght 7 to 8
mm.
5.1 Wiring diagram
DRR460-12A-T128
5.1.a Power Supply
1
+
–
24 VDC
2
Power supply 24 VDC ±15% – 3 VA

User manual - DRR460 - 9
5.1.b Analogue Input
+
–
AI TC
Shield / Schermo
13
14
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
AI
Rosso
Red
Bianco
White
Rosso
Red
Shield / Schermo
PT/NI100
13
14
15
For thermoresistances PT100, Ni100.
• For the three-wire connection use wires with the same section
• For the two-wire connection short-circuit terminals 13 and 15
• When shielded cable is used, it should be grounded at one side only
AI
Shield / Schermo
PTC/NTC
14
15
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
+
–
AI V
mA
Shield / Schermo
13
14
For linear signals in Volt and mA
Comply with polarity
When shielded cable is used, it should be grounded at one side only to avoid
ground loop currents
5.1.c Examples of connection for Volt and mA inputs
PRESSURE TRANSMITTER /
SENSORE DI PRESSIONE
B
C
A
4...20mA
2
14
13
1
P :0...100mbar Pmax :3bar T :0..70°C
OUT : 4...20mA IN :9...33VDC
For linear signals 0/4..20 mA with three-wires sensors.
Comply with polarity:
A= Sensor output
B= Sensor ground
C= Sensor supply (24VDC)
Short circuit pins 2 and 14.
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
C
B
4...20mA
13
14
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
C
A
PRESSURE TRANSMITTER /
SENSORE DI PRESSIONE
4...20mA
2
14
13
1
For linear signals 0/4..20 mA with two-wires sensors.
Comply with polarity:
A= Sensor output
C= Sensor supply (24VDC)
Short circuit pins 2 and 14.
5.1.d Serial input
(A) –
TERM
120Ω
(B) +
RS485
Shield / Schermo
10
9
11
Communication RS485 Modbus RTU Slave galvanically insulated from the
sensor.
Short circuit pins 9 and 10 to enter on the bus a 120Ω termination resistance.

10 - DRR460 - User manual
5.1.e CT input
12
CT
16
Input for CT 50mA.
Sampling time 100 µs.
Current measure true RMS for Heater Break Alarm and overcurrent alarm
functions.
5.1.f Digital outputs
5
+
–
Q1
24VDC / 50mA
6
7
+
–
Q2
24VDC / 50mA
8
Digital output 24VDC ±15%/ 50mA
5.1.g Analogue output
3
+
–
AO1
0/4..20mA
4
inear output in mA (galvanically insulated from the sensor) configurable as
command (par. 16 c.out) or retransmission of process-setpoint (par. 100 r e t r.)
6 Leds and key function
6.1 Meaning of status lights (LED)
RUN Indicates presence of serial communication
OUT1
Normally it indicates the status of output OUT1.
• During test (pressing key), if the command output is OUT1, blinks with
frequency 50ms.
• At the end of current acquisition by the CT, blinks with frequency 0.5s if
the operation has been done successfully.
• In case of error, it blinks in alternation with the led OUT 2 (ex. broken
sensor).
OUT2
Normally indicates the status of output OUT2.
• During test (pressing key), if the command output is OUT2, blinks with
frequency 50ms.
• At the end of current acquisition by the CT, blinks with frequency 0.5s if
the operation has been done successfully
• In case of error, it blinks in alternation with the led OUT 1 (ex. broken
sensor).
6.2 Key
• If pressed it enables the command output: press for more than 3 seconds
to manage the threshold current reading for the Heater Break Alarm
control.
• If pressed during the modbus address assignment function, it stores the
value assigned by the master (only if the dip1 is all in OFF).

User manual - DRR460 - 11
6.3 Dip switch
1
ON
2
3
4
5
6
7
8
DIP 1 – Slave address
• If contacts 1..8 are OFF, modbus slave address is selected on parameter 111
sL. a d .
• Determines modbus slave address, in binary code as indicated below:
00000001=1; 00000010=2; 00000011=3; 00000100=4; 00000101=5;
00 00 0110 = 6; 00 00 0111=7; 01111101=125; 01111110 =126; 01111111=127;
10000000=128; 10000001=129; 10000010=130; 11111011=251;
1111110 0 =252; 11111101=253; 11111110 =254.
1
ON
2
3
4
DIP 2 - Baud rate and loading default values
• If contacts 1..3 are OFF, modbus baud rate is selected on parameter 112
bd . rt.
• If contact 4 is ON, parameters and all eeprom datas are loaded with
default values (default).
• Determines modbus baud rate, using following values:
001=4800; 010=9600; 011=19200; 100=28800; 101=38400; 110=57600;
111=11520 0.
7 Controller functions
7.1 Loading default values
This procedure allows to restore default settings as pre-selected at the factory.
There are two reset modes:
• Close contact 4 of the dip switch 2 and reopen it at restart.
• Write 9999 on word modbus 500.
After the restore, device restarts.
7. 2 Controller Start / Stop and setpoint modification
User can decide if at power-on DRR460 starts regulation or not, setting parameter 17 init.S. (word
2017). Can modify the controller state writing 1 (start) or 0 (stop) on word 1204. It is possibile also to
modify command setpoint writing on word 1201, and alarm setpoints on words 1202 and 1203.
7. 3 Automatic tuning
Select 1 on parameter 31 (Tu n e word 2031).
Automatic tuning is always active and analyses constantly the difference setpoint-process. If this
difference is greater than the value selected on parameter 47 m .G. tu . (Max Gap Tune - word 2047), the
DRR460 decides autonomously when to modify PID parameters.
7.4 Manual tuning
Select 2 on parameter 31 (Tu n e word 2031).
The manual procedure allows the user a greater flexibility on deciding when to update PID algorithm
parameters.
This procedure is activated writing 1 on the word modbus 1205. The reference threshold to calculate
the new PID parameters is given by the result of the following operation:
Tune threshold = Setpoint (word 1201) – Par. 32 s.d.tu. (word 2032)
Ex.: if setpoint is 100.0°C and Par. 32 s.d.tu. is 20.0°C, the threshold to calculate PID parameters is
(100.0–20.0) = 80.0°C.
N.B.: for greater accuracy in the calculation of PID parameters it is recommended to launch the manual
tuning when the process is far from setpoint.

12 - DRR460 - User manual
7. 5 AutoTuning Launch “Once”
Set 3 on parameter 31 tune (word 2031). Autotuning procedure is executed only once at next DRR460
restart. If the procedure doesn’t work, will be executed at next restart.
7.6 Synchronized tuning
Select 4 on parameter 31 (Tu n e word 2031).
This procedure has been conceived to calculate correct PID values on multi-zone systems, where each
temperature is influenced by the adjacent zones.
Writing on word 1205, the device works as follows:
Word 1004 value Action
0Tune off.
1 Command output OFF
2 Command output ON
3Tune active
4Tune completed: command output OFF (read only)
5Tune not available: softstart function enabled (only reading)
The operation of this Tuning mode is the following: the master switches-off or turns-on all zones (value
1 or 2 on word 1205) for a time long enough to create inertia on the system.
At this point the autotuning is launched (value 3 on word 1205). The controller calculates the new PID
values. When the procedure ends, it switches-off the control output and sets the value 4 on word 1205.
The master, which should always read the word 1205, checks the various zones and when all of them
have reached the value 4 it will bring to 0 the value of word 1205.
The various devices will regulate the temperature basing on the new values.
N.B. The master must read the Word 1205 at least every 10 seconds or the controller will automatically
exit the autotuning procedure.
7.7 Automatic/Manual regulation for % output control
This function allows to select automatic functioning or manual command of the output percentage.
With parameter 25 (au.ma. word 2025), you can select two methods.
1. The first selection (value 1 of word 2025) allows to modify, through the word 1206, the functioning
mode: after writing 1 it is possible to change the output percentage on word 1206 (range 0-10000).
To return to automatic mode, write 0 on word 1206.
2. The second selection (value 2 of word 2025) enables the same functioning, but with two important
variants:
• If there is a temporary lack of voltage or after switch-off, the manual functioning will be
maintained as well as the previously set output percentage value.
• If the sensor breaks during automatic functioning, the controller moves to manual mode
while maintaining the output percentage command unchanged as generated by the P.I.D.
immediately before breakage.
7.8 Heater Break Alarm on CT (Current Transformer)
This function allows to measure load current to manage an alarm during a malfunctioning with power
in short circuit, always open or partial break of the charge.
To enable this function set 1 (50 Hz) or 2 (60 Hz) on paramater 90 c. t. (word 2090). Set the value of the
connected transfomer on parameter 91 c. t. v . (word 2091).
• Select on par. 92 H,b.a.t. the Heater Break Alarm intervention threshold in Ampere. Otherwise it is
possible to select this value in automatic mode pressing for more than 3 seconds.
• Select on par. 94 H,b.a.d. the delay time in seconds for the Heater Break Alarm intervention.
• It is possible to associate the alarm to the output OUT2, selecting 10 on par. 56 a L. 1. or par. 68 a L. 2.
It is possible also to enable an overcurrent control, setting on parameter 93 ocu. t. the intervention
threshold in Ampere.

User manual - DRR460 - 13
7.9 Dual Action Heating-Cooling
DRR460 is suitable also for systems requiring a combined heating-cooling action.The command
output has to be configured as PID for Heating (par. 33 p. b . greater than 0), while the alarm 1 and 2 has
to be configured as Cooling (value 9 on par. 56 AL. 1 o par. 68 a L. 2). The command output must be
connected to the actuator responsible for heating, while the alarm will control cooling action.
Parameters to be configured for the heating PID are:
p. b . (word 2033): Heating proportional band
t.i . (word 2034): Integral time of heating and cooling
t.d . (word 2035): Derivative time of heating and cooling
t. c. (word 2040): Heating time cycle
Parameters to be configured for the cooling PID are:
AL. 1 (word 2056) or AL. 2 (word 2068) = co oL (value 9) Alarm selection (Cooling)
p. b .M. (word 2042): Proportional band multiplier
ou.d.b. (word 2043): Overlapping / Dead band
co.c.t. (word 2044): Cooling time cycle
Par. p. b .M. (that ranges from 1.00 to 5.00) determines the proportional band of cooling action basing
on the formula:
Proportional band for cooling action = p. b . * p. b .M.
This gives a proportional band for cooling which will be the same as heating band if p. b .M. = 1.00, or 5
times greater if p. b .M. = 5.00.
Integral and derivative time are the same for both actions.
The par. ou.d.b.determines the percentage overlapping between the two actions. For systems in which
the heating output and cooling output must never be simultaneously active a dead band (ou.d.b. ≤ 0)
must be configured, vice versa you can configure an overlapping (ou.d.b. > 0).
The following figure shows an example of dual action P.I.D. (heating-cooling) with t.i . = 0 and t. d. = 0.
ACTIVE
ACTIVE
SPV
PV
 x  = COOL
 x  = COOL
 x  = COOL
 < 0
 = 0
 > 0
 (HEAT)
 (HEAT)
 (HEAT)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
SPV
PV
ACTIVE
ACTIVE
SPV
PV
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SPV
PV
 x  = COOL
 x  = COOL
 x  = COOL
 < 0
 = 0
 > 0
 (HEAT)
 (HEAT)
 (HEAT)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
SPV
PV
ACTIVE
ACTIVE
SPV
PV
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SPV
PV
 x  = COOL
 x  = COOL
 x  = COOL
 < 0
 = 0
 > 0
 (HEAT)
 (HEAT)
 (HEAT)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
COMMAND OUTPUT (HEAT)
ALARM OUTPUT (COOL)
SPV
PV
ACTIVE
ACTIVE
SPV
PV
ACTIVE
ACTIVE

14 - DRR460 - User manual
The parameter co.c.t. has the same meaning as the heating time cycle t. c.
Par. 41 c o o . F. (Cooling Fluid – word 2041) pre-selects the proportional band multiplier p.b.m. and the
cooling PID cycle time co.c.t. basing on the type of cooling fluid:
co o . f. Cooling fluid type p.b.m. co.c.t.
Ai r Air 1.00 10
oi L Oil 1.25 4
H2o Water 2.50 2
Once selected the parameter co o . f., parameters p.b.m., ou.d.b and co.c.t. can however be modified.
7.10 Soft-Start function
DRR460 is provided with two types of softstart selectables on parameter 80 SS. tY.( “Softstart Type” word
2080).
1 First selection (value 1 of word 2080) enables gradient softstart. At starting the controller reaches
setpoint basing on the rising gradient set on parameter 81 SS. G r. (
“Softstart Gradient” word 2081) in
Unit/hour (ex. °C/h). If parameter 84 S S . ti . (
“Softstart Time” word 2084) is different to 0, at starting
when the time selected on parameter 84 is elapsed, the controller stops to follow the gradient and
reaches setpoint with the maximum power.
2 Second selection (value 2 of word 2080) enables output percentual softstart. On par 83 SS. tH.
(
“Softstart Threshold” word 2083) it is possible to set the threshold under which starts the softstart.
On parameter 82 SS.PE. (
“Softstart Percentage” word 2082) an output percentage is selectable (0 to
100), which controller keeps until the process exceeds the threshold set on parameter 83 or until
the time in minutes set on parameter 84 S S . ti . (
“Softstart Time” word 2084) expires.
7.11 Retransmission function on analogue output
If not used as command, the anaolgue output can be used to retransmit process/ setpoint/ current
read by the C.T. input/ output percentage.
Select on parameter 100 rEt r. (
“Retransmission” word 2100) the value to be retransmitted. Select on
parameter 101 rE. tY. (
“Retransmission Type” word 2101) the type of output. It is possible also to select on
parameters 102 and 103 the input value rescale limites.
7.12 LATCH ON Function
For use with input p o t .1 (potentiometer 6 KΩ) and po t.2 (potentiometer 150 KΩ) and with linear input
(0..10 V, 0..60 mV, 0/4..20 mA), it is possible to associate start value of the scale (parameter 3 Lo.L.i.
“Lower Linear Input“ word 2003) to the minimum position of the sensor and value of the scale end
(parameter 4 u P. L.i . “Upper Linear Input“ word 2004) to the maximum position of the sensor (parameter
1 sul parametro 9 Lt c h ”Latch On” word 2009).
It is also possible to fix the point in which the controller will display 0 (however keeping the scale range
between Lo.L.i. e u P. L.i .) using the
“virtual zero” option by setting 2 or 3 in parameter 9 Lt c h .
Setting 2 virtual zero can be modified in each moment while setting 1, Latch-On function ends after
120 seconds.
Then refer to the following table for the calibration procedure:
Press Display Do
11300 Write 1 to enable Latch on. Write 0 to end
procedure
Place the sensor on minimum operating
value (corresponding to Lo .L.i)
21301 Write 1 to fix value on minimum Place sensor on maximum operating value
(corresponding to u P. L.i .)
31302 Write 1 to fix value on maximum
To exit standard procedure write 0 on 1300
or wait 120 seconds.
With
“virtual zero” put the sensor on zero
point.
41303 Write 1 to fix zero virtual value.Write 2 to
reset zero virtual value. To exit procedure write 0 on word 1300.

User manual - DRR460 - 15
7.13 Expansion function
Selecting 1 on parameter 121 E. M o d . ( “Expansion Module” word 2121) DRR460 works as a expansion
module. Controller functions (temperature control, alarms, softstart etc..) are disabled and outputs
management must be done by an external master (Es. PLC, HMI panel...).
It is possible to configure output status at starting and in case of error, programming parameters
122...131 (parag. 10). Into this mode, refer to modbus words 1500..1508 (parag. 8).
8 Serial communication
DRR460-12A-T128 is equipped with RS485 and can receive/broadcast data via serial communication
using MODBUS RTU protocol. The device can only be configured as a Slave. This function enables the
control of multiple controllers connected to a supervisory system/SCADA.
If contacts of dip-switch 1 are all open each controller responds to a Master query only if the query
contains the same address as parameter 111 sL. a d .(
“Slave Address” word 2111).
The addresses permitted range from 1 to 254 and there must not be controllers with the same address
on the same line.
Address 255 can be used by the Master to communicate with all the connected equipment (broadcast
mode), while with 0 all the devices receive the command, but no response is expected.
If Dip-Switch 2 contacts are opened, the baud rate is selected on parameter 112 b d. rt. (
“Baud Rate”
word 2112).
DRR460 can introduce a delay (in milliseconds) of the response to the master request. This delay must
be set on parameter 114 se. de. (
“Serial Delay” word 2114).
Each parameter modification is saved by the controller in the EEPROM memory (100000 writing cycles),
while the setpoints are saved with a delay of 10 seconds after the last modification.
NB: Changes made to words that are different from those reported in the following table can lead to
malfunction.
Modbus RTU protocol features
Baud-rate
Selectable on par. 112 bd . rt.
Value 0: 4800bit/s Value 4: 38400bit/s
Value 1: 9600bit/s Value 5: 57600bit/s
Value 2: 19200bit/s Value 6: 115200bit/s
Value 3: 28800bit/s
Format
Selectable on par. 113 s. p. p.
Value 0: 8N1 Value 3: 8N2
Value 1: 8E1 Value 4: 8E2
Value 2: 8O1 Value 5: 8O2
Supported
functions
WORD READING (max 20 word) (0x03, 0x04)
SINGLE WORD WRITING (0x06)
MULTIPLE WORDS WRITING (max 20 word) (0x10)
RO = Read Only R/W = Read/Write WO = Write Only
Modbus
address Descrizione Read
Write
Reset
value
0 Type of device RO 490
1Software version RO Flash
2Boot version RO Flash

16 - DRR460 - User manual
Modbus
address Descrizione Read
Write
Reset
value
3 Slave address RO Eepr/dip
6Baud rate RO Eepr/dip
50 Automatic addressing WO -
51 Installation code comparision for automatic learning of slave
address WO -
500 Loading default values (write 9999) RW 0
501 Restart DRR460 (write 9999) RW 0
1000 Process (tenth of degree) RO -
1001 Command setpoint (tenth of degree) R/W EEPROM
1002 Alarm 1 setpoint (tenth of degree) R/W EEPROM
1003
Start/Stop
0=controller in STOP
1=controller in START
R/W 0
1004
With automatic tuning (word 2005 = 1):
0=autotuning function OFF
1=autotuning in progress
RO 0
With manual tuning (word 2005 = 2):
0=autotuning function OFF
1=autotuning ON
R/W 0
With synchronized tuning (word 2005 = 3):
0=autotuning function OFF
1=command out. OFF (forces the cooling)
2=command out. ON (forces the heating)
3=autotuning ON
4=autotuning completed
R/W 0
1005 Automatic/manual selection
0=automatic ; 1=manual R/W 0
1006 Output status (0=off, 1=on)
Bit 0 = OUT1 Bit 1 = OUT2 RO 0
1007
Led status (0 = OFF, 1 = ON)
Bit0 = Green led
Bit1 = Red led OUT1
Bit2 = Red led OUT2
RO 0
1008
Alarm status (0=absent, 1=present)
Bit0 = Allarme 1
Bit1 = Allarme 2
RO 0
1009
Error flags
Bit0 = Cold junction error
Bit1 = Process error (sensor)
Bit2 = Error in eeprom writing
Bit3 = Error in eeprom reading
Bit4 = Error missing calibration
Bit5 = Generic error
Bit6 = Hardware error
Bit7 = Error H.B.A. (SSR in short circuit)
Bit8 = Error H.B.A. (SSR/open charge)
Bit9 = Error H.B.A. (partial break of the charge)
Bit10= Overcurrent error
RO 0
1010 Cold junction temperature (degree with tenth) RO -
1011 Command output percentage (0-10000)
Heating output percentage in double loop R/W 0
1012 Cooling output percentage in double loop (0-10000) RO 0

User manual - DRR460 - 17
Modbus
address Descrizione Read
Write
Reset
value
1013 Current CT (ampere with tenth) RO 0
1014 Current CT ON (ampere with tenth) RO 0
1015 Current CT OFF (ampere with tenth) RO 0
1016 Key status (0=rilasciato, 1=premuto) RO 0
1017 Dip 1 value RO 0
110 0 Process (if temperature, no tenth) RO -
1101 Command setpoint (if temperature, no tenth) R/W EEPROM
1102 Alarm 1 setpoint (if temperature, no tenth) R/W EEPROM
1103 Command output percentage (0-1000)
Heating output percentage in double loop R/W 0
110 4 Heating output percentage (0-100)
Heating output percentage in double loop R/W 0
1105 Cooling output percentage in double loop (0-1000) RO 0
110 6 Cooling output percentage in double loop (0-100) RO 0
1107
Output status (0=off, 1=on)
Bit 0 = OUT1
Bit 1 = OUT2
RO 0
110 8 Command output percentage (0-10000)
Heating output percentage in doulbe loop R/W 0
1200 Process (if temperature, with tenth) RO ?
1201 Command setpoint (if temperature, with tenth) R/W EEPROM
1202 Alarm 1 setpoint (if temperature, with tenth) R/W EEPROM
1203 Alarm 2 setpoint (if temperature, with tenth) R/W EEPROM
1204
Start/Stop
0=controller in STOP
1=controller in START
R/W 0
1205
With automatic tuning (word 2005 = 1):
0=autotuning function OFF
1=autotuning in progress
RO 0
With manual tuning (word 2005 = 2):
0=autotuning function OFF
1=autotuning ON
R/W 0
With synchronized tuning (word 2005 = 3):
0=autotuning function OFF
1=command out. OFF (forces the cooling)
2=command out. ON (forces the heating)
3=autotuning ON
4=autotuning completed
R/W 0
1206 Automatic/manual selection
0=automatic ; 1=manual R/W 0
1207 Real value (gradient) command setpoint (if temperature, with tenth) R -
1208
Alarm status (0=absent, 1=present)
Bit0 = Allarme 1
Bit1 = Allarme 2
RO 0
1209 Command output manual reset: write 0 to reset command output.
In reading 0=can not be reset, 1=can be reset R/W 0
1210
Alarms manual reset: write 0 to reset all alarms.
In reading 0=can not be reset, 1=can be reset
Bit0 = Allarme 1
Bit1 = Allarme 2
R/W 0
1211 Remote alarm 1 state (0=absent, 1=present) R/W 0
1212 Remote alarm 2 state (0=absent, 1=present) R/W 0

18 - DRR460 - User manual
Modbus
address Descrizione Read
Write
Reset
value
1213 AO value by serial (Par.100 = 6) R/W 0
1214
Error flags 1
Bit0 = Cold junction error
Bit1 = Process error (sensor)
Bit2 = Error in eeprom writing
Bit3 = Error in eeprom reading
Bit4 = Error missing calibration
Bit5 = Generic error
Bit6 = Hardware error
Bit7 = Error H.B.A. (SSR in short circuit)
Bit8 = Error H.B.A. (SSR/open charge)
Bit9 = Error H.B.A. (partial break of the charge)
Bit10= Overcurrent error
RO 0
1215
Error flags 2
Bit0 = Error eeprom calibrations
Bit1 = Error eeprom calibration constants
Bit2 = Error eeprom parameters
Bit3 = Error eeprom setpoint
Bit4 = Error eeprom service datas A
Bit5 = Error eeprom service datas B
Bit6 = Error eeprom service datas C
RO 0
1216 Command output percentage (0-10000)
Heating output percentage in double loop R/W 0
1217 Cooling output percentage in double loop (0-10000) RO 0
1218 Command output percentage (0-1000)
Heating output percentage in double loop R/W 0
1219 Cooling output percentage in double loop (0-1000) RO 0
1220 Command output percentage (0-100)
Heating output percentage in double loop R/W 0
1221 Cooling output percentage in double loop (0-100) RO 0
1222 Current CT (ampere with tenth) RO 0
1223 Current media CT (ampere with tenth) RO 0
1224 Current CT ON (ampere with tenth) RO 0
1225 Current CT OFF (ampere with tenth) RO 0
1226 Cold junction temperature (degree with tenth) RO -
1227
Output status (0=off, 1=on)
Bit 0 = OUT1
Bit 1 = OUT2
RO 0
1228
Led status (0 = OFF, 1 = ON)
Bit0 = Green led
Bit1 = Red led OUT1
Bit2 = Red led OUT2
RO 0
1229 Key status (0=rilasciato, 1=premuto) RO 0
1230 Dip 1 value RO 0
1231 Dip 2 value RO 0
1232 Process (if temperature, no tenth) RO -
1233 Command setpoint (if temperature, no tenth) R/W EEPROM
1234 Alarm 1 Setpoint (if temperature, no tenth) R/W EEPROM
1235 Alarm 2 Setpoint (if temperature, no tenth) R/W EEPROM
1300 Latch on setting R/W 0
1301 Latch on lower limit calibration R/W 0
1302 Latch on upper limit calibration R/W 0

User manual - DRR460 - 19
Modbus
address Descrizione Read
Write
Reset
value
1303 Latch on virtual zero calibration R/W 0
1400 Serial process reset. Write 1 to disable the serial process.
(process = AI1) R/W 0
1401 Word serial process. AI1 is not considered R/W 0
1500 Process (if temperature, with tenth) RO ?
1501 CT instantaneous current (ampere with tenth) RO 0
1502 Current CT ON (ampere with tenth) RO 0
1503 Current CT OFF (ampere with tenth) RO 0
1504 Key status (0=rilasciato, 1=premuto) RO 0
1505 Dip 1 value RO 0
1506 Dip 2 value RO 0
1507
Digital output status (0=off, 1=on)
Bit 0 = OUT1
Bit 1 = OUT2
R/W 0
1508 Analogue output value R/W 0
2001 Parameter 1 R/W EEPROM
2002 Parameter 2 R/W EEPROM
... Parameter ... R/W EEPROM
2143 Parameter 143 R/W EEPROM
9 Regulation control
DRR460 integrates different types of control for the regulation of the command output, selecting
parameter 52 o.cL.t. as follows:
9.a 0 Time control
For this type of control it is suggested to use a “zero-crossing” SSR.
Activation and deactivation of the output is related to the time selected on parameter 40 c. t.. Ex.
selecting a time of 10 s and supposing a 30% percentage, the output will remain active for 3 s and
inactive for 7 s.
9.b 1 and 3 Burst fire control
For this type of control it is necessary to use a “Non zero-crossing” SSR.
The “Burst-fire” control (1 cycle) is a duty cycle mode which consists of supplying a series of complete
mains voltage cycles to the load.
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 firing cycle (20ms at 50Hz)
• 1 firing cycle (20ms at 50Hz)
For a setpoint less than 50%:
• The firing time remains constant (1 cycle)
• The non-firing and modulation time increases
For a setpoint greater than 50%:
•
The non-firing time remains constant (1 cycle)
• The firing and modulation time increases.

20 - DRR460 - User manual
9.c 2 and 4 Advanced Burst fire control
For this type of control it is necessary to use a “Non zero-crossing” SSR.
In order to minimise power fluctuation during the modulation period, the
“advanced Burst fire” SSR
output firing mode uses:
· A complete number of cycles for firing
· A complete number of half-cycles for non-firing
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 firing takes place as in
the
“Burst fire” mode. (parag. 9.b)
For a setpoint greater than 66% in
“Advanced Burst fire” mode:
· The non-firing time is constant at one half-cycle
· Firing takes place over whole cycles.
In a ‘short-wave infrared’ application, ‘advanced Burst fire’ firing
mode reduces the brightness of the infrared elements and thus
minimises annoying visual flickering.
In a short-wave infrared application,
“advanced Burst fire” firing mode reduces the brightness of the
infrared elements and thus minimises annoying visual flickering.
10 Table of configuration parameters
GROUP A - ANALOGUE INPUT
1 SEN. Sensor (Word modbus )
Analogue input configuration / sensor selection
0 Tc-K -260 °C..1360 °C. (Default)
1 Tc-S -40 °C..1760 °C
2 Tc-R -40 °C..1760 °C
3 Tc-J -200 °C..1200 °C
4 Tc-T -260 °C..400 °C
5 Tc-E -260 °C..980 °C
6 Tc-N -260 °C..1280 °C
7 Tc-B 100 °C..1820 °C
8 Pt100 -100 °C..600 °C
9 Ni100 -60 °C..180 °C
10 NTC10K -40 °C..125 °C
11 PTC1K -50 °C..150 °C
12 Pt500 -100 °C..600 °C
13 Pt1000 -100 °C..600 °C
14 0..10 V
15 0..20 mA
16 4..20 mA
17 0..60 mV
18 Potenziometer (set the value on parameter 5)
2
d eG r. Degree (Word modbus )
0 °C Centigrade (Default)
1 °F Fahrenheit
2 K Kelvin