N1050 Controller
TEMPERATURE CONTROLLER
– USER MANUAL – V1.1x

SAFETY ALERTS

The symbols below are used on the equipment and throughout this document to draw the user’s attention to important operational and safety information.

CAUTION: Read the manual thoroughly before installing and operating the equipment.
CAUTION OR DANGER: Electrical shock hazard.

All safety related instructions that appear in the manual must be observed to ensure personal safety and to prevent damage to either the instrument or the system. If the instrument is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

INSTALLATION / CONNECTIONS

The controller must be fastened on a panel, following the sequence of steps described below:

• Prepare a panel cut-out according to specifications.
• Remove the mounting clamps from the controller.
• Insert the controller into the panel cut-out.
• Slide the mounting clamp from the rear to a firm grip at the panel.

ELECTRICAL CONNECTIONS
The layout of the features on the back panel of the controller is shown in Figure 1 and Figure 2:

INSTALLATION RECOMMENDATIONS

• All electrical connections are made to the screw terminals at the rear of the controller.
• To minimize the pick-up of electrical noise, the low voltage DC connections and the sensor input wiring should be routed away from high-current power conductors. If this is impractical, use shielded cables. In general, keep cable lengths to a minimum.
• All electronic instruments must be powered by a clean mains supply, proper for instrumentation.
• It is strongly recommended to apply RC’S FILTERS (noise suppressor) to contactor coils, solenoids, etc. In any application it is essential to consider what can happen when any part of the system fails. The controller features by themselves cannot assure total protection

FEATURES

INPUT TYPE SELECTION
The input type to be used by the controller is defined in the device configuration. Table 1 shows the available input options:

TYPE	CODE	MEASUREMENT RANGE
Thermocouple J		Range: -110 to 950 °C (-166 to 1742 °F)
Thermocouple K		Range: -150 to 1370 °C (-238 to 2498 °F)
Thermocouple T		Range: -160 to 400 °C (-256 to 752 °F)
Thermocouple S		Range: -50 to 1760 °C (-58 to 3200 °F)
Pt100		Range: -200 to 850 °C (-328 to 1562 °F)

Table 1 – Input types

OUTPUTS

The controller offers 2, 3 or 4 output channels, depending on the model requested. The output channels are user configurable as Control Output, Alarm Output, SP or PV Retransmission and LBD (Loop Break Detect) function.
OUT1 Pulse type output. 5 Vdc / 50 mA max. Available on terminals 4 and 5.
OUT2 Relay SPST-NO. Available on terminals 6 and 7.
OUT3 Relay SPST-NO. Available on terminals 13 and 14.
Analog Output or Current Output. 0-20 / 4-20 mA, 500 R maximum. Available on terminals 13 and 14.
OUT4 Relay SPDT. Available on terminals 10, 11, and 12.

CONTROL OUTPUT
The output that will command the Process Actuator (Heating Resistance, Refrigeration Compressor, etc.). The control output can be directed to a relay, an analog output, or even a Pulse type output, according to the availability and user’s desire.

CONTROL MODE
The controller has two modes: Manual Mode or Automatic Mode. The parameter allows you to select one or the other control mode.
In Manual mode (), you determine the MV value applied to the Control Output.
In Automatic mode (), the controller is in control of the process, automatically setting the MV value to be applied to the output defined as the Control Output.
In Automatic mode there are two distinct control strategies: ON/OFF Control and PID Control.
The ON/OFF Control, obtained when you set the Proportional Band () parameter to 0.0, acts on the Control Output, based on the simple relation between SP and PV (measured temperature).
The PID Control action is based on a mathematical control algorithm, which, considering the correlation between SP and PV, acts on the Control Output and on the values set for parameters and .
The determination of parameters is described in the PID PARAMETERS DEFINITION section.

ANALOG OUTPUT OR CURRENT OUTPUT

The controller has an analog output of electric current that can perform the following functions:

• Process control output
• Process PV retransmission output
• Process SP retransmission output
  As a control output, it relates the MV range (0 to 100 %) to the current range: 4 to 20 mA or 0 to 20 mA.
  0 % MV determines 4 mA (or 0 mA) on the Analog Output
  100 % MV determines 20 mA on the Analog Output

As the PV / SP relay output of the process, the electrical current applied to the analog output will be proportional to the ratio between the value of the variable (PV or SP) and the retransmission range defined by parameters and .
The analog output is electrically isolated from the other controller circuits.

ALARM OUTPUT
The controller has 2 alarms (Alarm 1 (A1) and Alarm 2 (A2)) that can be directed (assigned) to any output channel.
These alarms can be configured to operate in distinct functions, as described in Table 2:

	Alarm off.
	Alarm of absolute minimum value. It triggers when the value of measured PV is below the value defined for alarmSetpoint (SP1 or SPA2).

	Alarm of absolute maximum value. It triggers when the value of measured PV is above the value defined for alarm Setpoint.
	Alarm of differential value. In this function, the parameters represent the deviation of PV in relation to the CONTROL SP.
	Positive SPA1	Negative SPA1
	Alarm of minimum differential value. It triggers when the value of PV is below the point set by SP-SPA1 (using Alarm 1 as an example).
	Positive SPA1	Negative SPA1
	Alarm of valor maximum differential value. It triggers when the value of PV is above the defined point by SP+SPA1 (using Alarm 1 as an example).
	Positive SPAT	Negative SPA1
	Sensor Break Alarm. It triggers when the input presents problems such as interrupted sensor, bad connection, etc.
	Event (ramp and Soak). It triggers in a specific program segment.

Table 2 – Alarm functions

Note 1: The figures are also valid for Alarm 2 ().
Note 2: Alarms configured with the functions also trigger their associated output when a sensor fault is identified and signaled by the controller. A relay output, for example, configured to function as a High Alarm (), will operate when the SPAL value is exceeded and when the sensor connected to the controller input is broken.
INITIAL BLOCKING OF ALARM
The Initial Blocking option inhibits the alarm from being recognized if an alarm condition is present when the controller is first energized.
The alarm will be enabled only after the occurrence of a non-alarm condition followed by a new occurrence for the alarm.
The Initial Blocking is useful, for instance, when one of the alarms is configured as a minimum value alarm, causing the activation of the alarm soon upon the process start-up, an occurrence that may be undesirable.
The Initial Blocking is disabled for the function,
RUN FUNCTION
The RUN function allows you to enable and disable the device operation. It works like a general key.
When in the on condition (), the controller is enabled to operate, and the control outputs and the alarm are acting normally.
When in the off condition (), the controller does not act on the process, summarily switching off its outputs. No function is performed and only the measured temperature indication remains operative.
Function available in the RUN parameter in the controller Operation cycle. The RUN indicator on the frontal panel of the controller turns on when the control is enabled ().
SAFE OUTPUT FUNCTION WITH SENSOR FAILURE
Function that ensures that the control output is in a safe condition for the process when an error in the sensor input is identified. When a fault is identified in the sensor, the controller will determine the percentage value set in the parameter for the control output. The controller will remain in this condition until the sensor failure disappears.
When in ON/OFF mode, the values for are only 0 and 100%.
When in PID mode, any value between 0 and 100% will be accepted.

LBD FUNCTION – LOOP BREAK DETECTION

The parameter defines a time interval, in minutes, within which the PV is expected to react to a control output signal. If the PV does not react properly within the time interval configured, the controller will signal the occurrence of the event, which indicates control loop problems, in its display.
An LBD event may be sent to any output channel. To do so, just configure the desired output channel with the Lbd function which, in this event, will be triggered.
The LDB function is disabled when the parameter is programmed with 0 (zero).
This function is useful in detecting system failures, such us defective sensors or actuators, loads and power supply, among others.

OFFSET
This feature allows a small adjustment to the PV indication. Also allows you to correct measurement errors that appear, for example, during the replacement of a temperature sensor.
TIMERS
The controller has two timers (T1 and T2), which operate independently of the temperature control actuation.
The parameters that define the operation mode of these timers are presented in the Timer Cycle.
The time count always starts with T1 and, at the end of it, starts the T2 count.
The time base can be set as HH:MM or MM:SS in the parameter .
Any of the controller outputs can be linked to the timers.
The special parameter () allows disabling the temperature controller at the end of the timer.
The A3 and A4 indicators on the front of the controller are linked to the conditions of the T1 and T2 timers, respectively.

TIMER T1
T1 is the main timer. Its operating mode is set with the configuration of two parameters:
Timer trigger.
Behavior of the output timer.
Note 3: The T1 adjustment parameter can also be shown in the
Operation Cycle of the controller by parameter .

TIMER T1 TRIGGER
There are three Timer T1 trigger, available in parameter:

Timer Start

Defines the start mode of the T1 timer. Timer off (T1 and T2). The other parameters related to the timer will not be displayed. Starts the time count when the measured temperature (PV) value reaches the SP temperature value set for the process. Starts the time count via the  key. Once started, the timer will stop if the  key is pressed with a short touch (1 s). A short touch will resume the timer. A long touch (3 s) on the  key will immediately end the timer cycle in progress. Note 4: The timer trigger via the  key is linked to the control condition enabled (). RUN Starts the time count when the control is enabled ().

Note 5: The timer trigger via the key is linked to the control condition enabled ().
Note 6: In the parameter, the option disables the T1 and T2 timers and hides all parameters related to this feature.

BEHAVIOR OF OUTPUT T1 DURING T1
The T1 output has two different behavior possibilities during T1 timer.
The parameter allows its definition.
The A3 indicator on the controller frontal indicates the timer current step.

Timer End

Behavior of output T1 at the end of the T1 timer. T1 output turns on () at the end of T1. When starting the T1 timer, the T1 output remains off. At the end of the timer, output T1 is turned on and will remain on until a new cycle starts. The A3 indicator flashes during the T1 timer. After T1, it is permanently On, indicating that the output still on (see Note 7). T1 output turns off () at the end of T1. In this mode, the T1 output turns on at the start of the T1 timer and turns off at the end of the T1 timer. The A3 indicator flashes during the T1 timer and turns off at the end of T1 (see Note 7).

Note 7: When the timer is interrupted by pressing the key, the indicator (A3 or A4) will flash quickly.

TEMPERATURE CONTROL BEHAVIOR AT THE END OF THE TIMER
During the timing of T1 and T2 intervals, the temperature control acts according to its configuration and in an independent way. However, at the end of the T1 + T2 interval, it is possible to set the controller to disable the temperature control, changing the condition of the parameter .
In the Timer Cycle of the controller, the parameter allows you to create the desired configuration:

Timer Run

Temperature control behavior at the end of the T1 + T2 timers. Temperature control continues to operate. Ends the control at the end of the timer () (see Note 5).

TIMER T2
T2 is the secondary timer. T2 always start its timer at the end of T1.
T2 can also be linked to any available output of the controller. The linked output always turns on at the beginning of T1 and turns off at its end.
The A4 indicator shows the timer T2 condition:

• T2 in progress = A4 is flashing.
• T2 do not start or is already finished = A4 is off.

TIMER DIRECTION
For both timers, time counting can be set in ascending or descending mode. In UP mode, the countdown starts at zero and goes up to the value of the programmed time interval (T1 T2). In the DOWN mode, the countdown starts at the programmed time interval value and goes down to zero.
The timer direction is defined in parameter .

Timer Direction

T1 timing direction. Continuous counting, starting at zero. Countdown.

TIMERS TIME BASE
The parameter in the Timer Cycle set the time base to be used.
The options are:
The T1 and T2 time intervals are displayed in hours and minutes.
The T1 and T2 time intervals are displayed in minutes and seconds.

USB INTERFACE
The USB interface is used to CONFIGURE, MONITOR or UPDATE the controller FIRMWARE. You should use QuickTune software, which offers features to create, view, save and open settings from the device or files on the computer. The tool for saving and opening configurations in files allows you to transfer settings between devices
and perform backup copies.
For specific models, QuickTune allows to update the firmware (internal software) of the controller via the USB interface.
For MONITORING purposes, you can use any supervisory software (SCADA) or laboratory software that supports the MODBUS RTU communication over a serial communication port. When connected to a computer’s USB, the controller is recognized as a conventional serial port (COM x).
You must use QuickTune software or consult the DEVICE MANAGER on the Windows Control Panel to identify the COM port assigned to the controller.
You should consult the mapping of the MODBUS memory in the controller’s communication manual and the documentation of the supervision software to start the MONITORING process.
Follow the procedure below to use the USB communication of the device:

1. Download QuickTune software from our website and install it on the computer. The USB drivers necessary for operating the communication will be installed with the software.
2. Connect the USB cable between the device and the computer.
   The controller does not have to be connected to a power supply.
   The USB will provide enough power to operate the communication (other device functions may not operate).
3. Run the QuickTime software, configure the communication and start the device recognition.

The USB interface IS NOT SEPARATE from the signal input (PV) or the controller digital inputs and outputs. It is intended for temporary use during CONFIGURATION and MONITORING periods.
For the safety of people and equipment, it must onlybe used when the piece of equipment is completelydisconnected from the input/output signals.
Using the USB in any other type of connection impossible but requires a careful analysis by the person responsible for installing it.
When MONITORING for extended periods of time and with connected inputs and outputs, were commend using the RS485 interface, which is available or optional in most of our products.

OPERATION

The front panel of the controller is shown in the Figure 3:

Display: Displays the measured variable, symbols of the configuration parameters and their respective values/conditions.
Tx/RX Indicators: Flashes when the controller exchanges data with the RS485 communication network.
AT Indicator: On while the controller is in automatic tuning.
MAN Indicator: On while the controller is in manual mode.
RUN Indicator: On with control enabled (). When flashing, it indicates that a program has stopped running.
OUT Indicator: Indicates the instantaneous state of the control output(s).
A1 and A2 Indicators: Indicate the occurrence of an alarm condition.

A3 Indicator: Indicates the condition of timer T1.
A4 Indicator: Indicates the condition of timer T2.
°C / °F Indicators: Identify the temperature unit.

Key: Key used to advance to successive parameters and parameter cycles.
Increment Key and Decrement Key: Keys used to change the parameter values.
Key: Keys used to retrocede parameters when in configuration mode and performs special functions.

INITIALIZATION
When the controller is energized, the number of its current software version will be displayed in the first 3 seconds, and then the value of the measured process variable (temperature) will be displayed on the upper display. The value of SP is displayed in the lower display. This is the Indication Screen.
To be used in a process, the controller needs to be preconfigured.
The configuration consists of the definition of each of the several parameters presented. You must understand the importance of each parameter and determine a valid condition or a valid value for each one.
The configuration parameters are gathered into groups of affinities, called Parameter Cycles. The 7 parameter cycles are:
1 – Operation / 2 – Tuning / 3 – Programs / 4 – Alarms / 5 – Input / 6 – Timer / 7 – Calibration

The key gives access to the cycles and their parameters:
When you hold the key down, the controller will cycle from one cycle to another every 2 seconds, displaying the first parameter ofeach cycle:

To enter the desired cycle, simply release the key when your first parameter is displayed. To advance on the parameters of this cycle, use the key with short touches. To return parameters, use the key.
Each parameter has its symbol displayed in the upper display. Its respective value/condition is shown in the lower display.
Depending on the Configuration Protection adopted, the parameter is displayed as the first parameter of the cycle where the protection starts (See CONFIGURATION PROTECTION chapter).

PARAMETERS DESCRITION

PV + SP	PV Indication screen. On the higher display (white) the value of the measured variable (PV) temperature is shown. On the lower display (green), the control setpoint (SP) is shown.
PV + TM	PV Indication Screen and T1 Count. The upper display (white) shows the value of the measured temperature (PV).
	T1 time interval adjustment. From 00:00 to 99:59 (HH:MM or MM:SS) Parameter displayed in this cycle when set in parameter .
	Control Mode: Automatic control mode. Manual control mode. (Bumpless transfer between automatic and manual control modes).
PV / MV	MV screen. Displays the PV value in the upper display and, in the lower display, displays the MV value, in percentage, applied to the control output. In Automatic Control mode, the value of MV can only be displayed. In Manual Control mode, you can change the MV value. To differentiate this screen from the PV+SP screen, the value of MV blinks constantly.
	Alarm SP. Value that defines the alarm activation point. For the alarms set up with the Differential function, these parameters define deviations. For the alarm function  this parameter is not used. Parameters shown in this cycle only when enabled in the parameters .
	Allows you to select the ramp and soak program to be performed. The controller does not perform any program. 1 to 5 Number of the program to be performed. With enabled outputs (), the selected program will be performed immediately.
	Screen for indication only. When a ramp and soak program is active, this parameter shows the number of the segment under execution, from 1 to 4.

	Screen for indication only. When a ramp and soak program is in execution, it shows the remaining time to the end of the current segment in units of time configured in the  parameter.
	RUN function. Enables controller operation. Control enabled. Control not enabled.

TUNING CYCLE

	Auto-tuning. Enables the auto-tuning function for the PID parameters (). Auto-tuning is off.  Running auto-tuning in fast mode. Running auto-tuning in full mode.
	Proportional Band. Value of the term P of the control mode PID, in percentage of the maximum span of the input type. Adjustable between 0 and 500.0 %. When set to 0,0 (zero), control action is ON/OFF.
	Integral Rate. Value of the term I of the PID algorithm, in repetitions per minute (Reset). Adjustable between 0 and 24.00. Displayed only if proportional band ¹ 0.
	Derivative Time. Value of the term D of the control mode PID, in seconds. Adjustable between 0 and 250.0 seconds. Displayed only if proportional band ¹ 0.
	Control hysteresis. Hysteresis value for ON/OFF control. Adjustable between 0 and the width of the measuring range of the selected input type. Displayed only if proportional band = 0.
	Cycle Time. Pulse Width Modulation (PWM) period in seconds. Adjustable between 0.5 and 100.0 seconds. With the use of contactors, the recommended value for the cycle time parameter must be greater than 10 s. Displayed only if proportional band ¹ 0.
	Action Control: Control with Reverse Action. Appropriate for heating. Turns control output on when PV is below SP. Control with Direct Action. Appropriate for cooling. Turns control output on when PV is above SP.
	Soft Start function. Time interval, in seconds, while the controller limits the control output (MV) rising rate. Zero value disables the Soft Start function.
	Not used. Control output. Alarm 1 output. Alarm 2 output. Alarm 1 + Alarm 2. T1 output. T2 output. Loop Break Detect Alarm.

On controller models with the Analog Output feature, the OUT3 configuration options are: Channel not used. 0 to 20 mA control output. 4 to 20 mA control output. 0 to 20 mA retransmission of the measured temperature value (PV). 4 to 20 mA retransmission of the measured temperature value (PV).  0 to 20 mA retransmission of the Setpoint value that was set (SP). 4 to 20 mA retransmission of the Setpoint value that was set (SP).

PROGRAM CYCLE

	Defines the time base that will be used by all Ramp and Soak programs. Time base in hour: minute. Time base in minute: second.
	Program Restore. Parameter that defines the behavior of the controller when it resumes from a power failure in the middle of a program execution of ramps and soaks. Returns at the beginning of the program. Returns the beginning of the segment. Returns at the exact point where it stopped. Returns with control disabled ().
	Selects the ramp and soak profile program to be edited/viewed. Total of 5 programs possible (1 – 5).
	Maximum admitted deviation of PV with respect to SP. If exceeded, the program execution is suspended (the internal timer freezes) until the PV value is within the permissible deviation range. The value 0 (zero) disables the function.
	Program SP’s. 0 to 4. Sets of 5 SP values that define the program profile of ramps and soaks.
	Program segment time. 1 to 4. Sets the duration time, in seconds or minutes, of each of the 4 segments of the program being edited.
	Program segment alarm (alarms of event). Parameters that define which alarms are to be activated during the execution of a certain program segment: Do not trigger an alarm on this segment. Triggers alarm 1 when program reaches this segment. Triggers alarm 2 when program reaches this segment. Triggers alarms 1 and 2 when program reaches this segment. The alarms chosen must have its function configured as .
	Program link. At the end of running a program, any other program can have its execution started immediately. 0 Do not connect to any other program. 1  to 5 Program number to be connected.

ALARMS CYCLE

	Alarm functions. Defines the functions for the alarms among the Table 2 options.
	Alarm SP. Value that defines the point of actuation of the alarm outputs. For alarms programmed with Differential functions, these parameters define deviations. This parameter is not used for the alarm function .
	Allows to display parameters SPA1 and SPA2 also in the Operation Cycle. SPA1/SPA2 are displayed in    the Operation Cycle. SPA1/SPA2 are NOT displayed in the Operation Cycle. This parameter is not used for the alarm function .
	Initial blocking alarms. Enables initial blocking.  Inhibits initial blocking. This parameter is not used for the alarm function .
	Alarm hysteresis. Defines the difference between the value of PV at which the alarm is triggered and the value at which it is turned off. This parameter is not used for the alarm function
	Allows visual signalization of an alarm occurrence by flashing the indication of PV in the operation level. Enables alarm indication by flashing PV. Disables alarm indication by flashing PV. This parameter is not used for the alarm function .

INPUT CYCLE

	Input type. Selects the input signal type to be connected to the process variable input. Refer to Table 1. (J):   – 110 to 950 °C / -166 to 1742 °F (K): – 150 to 1370 °C / -238 to 2498 °F (T):   – 160 to 400 °C / -256 to 752 °F (S):  – 50 to 1760 °C / -58 to 3200 °F (Pt100):   – 200 to 850 °C / -328 to 1562 °F
	Digital Input Filter. Used to improve the stability of the measured signal (PV). The set value corresponds to the value of the time constant. In seconds (s). Adjustable from 0 to 300 s.
	Selects the decimal point position.
	Selects display indication for degrees Celsius or Fahrenheit: Indication in Celsius. Indication in Fahrenheit.
	Offset value to be added to the PV reading to compensate sensor error.
	Defines the lower limit for SP adjustment.
	Defines the upper limit for SP adjustment.

	Defines the lower limit of the SP or PV retransmission range on OUT3. Parameter displayed only when selecting one of the retransmission functions available for the Analog Output.
	Defines the upper limit of the SP or PV retransmission range on OUT3. Parameter displayed only when selecting one of the retransmission functions available for the Analog Output
	Time interval for the LBD function. Defines the maximum interval of time for the PV to react to a control command. In minutes.
	Percentage value to be applied to the output on any failure of the sensor that is connected to the controller input.
	Serial communication baud rate. Available in the following baud rates (in kbps): 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6 and 115.2
	Parity of the serial communication. Without parity. Even parity. Odd parity.
Addr Address	Number between 1 and 247 that identifies the controller in the serial communication network.

TIMER CYCLE

	Sets the start mode of the T1 timer. Timers off (Note 8). Starts when PV reaches SP. key starts, stops, and restarts the timer (see Note 8). Starts when enabling the control (YES).
	Count direction of T1 timer. Continuous counting, starting at zero. Countdown.
	Timer time base. Sets the time base adopted for the timer. Time base in seconds. Time base in minutes.
	T1 time interval adjustment. From 00:00 to 99:59 (HH:MM or MM:SS).
	Displays the “T1 time interval adjustment” () also in the Operation Cycle. Release T1 for the Operation Cycle. It does not release T1 for the Operation Cycle.

	T1 output behavior at the end of the T1 timer. T1 output turns on at the end of T1. T1 output turns off at the end of T1.
	T2 time interval adjustment. From 00:00 to 99:59 (HH:MM or MM:SS). Time interval where T2 output remains on after the end of the T1 timer.
	Temperature control behavior at the end of T1 + T2 timers. Temperature control continues to operate. Temperature control is disabled at the end of the timer ().

Note 8: In the parameter, the option disables completely the T1 and T2 timers and hides all parameters related to this function.

CALIBRATION CYCLE
All types of input are calibrated in the factory. In case a recalibration is required. It shall be conducted by a specialized professional. In case this cycle is accidentally accessed, do not perform alteration in its parameters.

	Access password input. This parameter is presented before the protected cycles. See CONFIGURATION PROTECTION chapter.
	Allows you to calibrate the controller. When the calibration is not enabled, the related parameters are hidden.
	Enter the value corresponding to the low scale signal applied to the analog input.
	Enter the value corresponding to the full-scale signal applied to the analog input.
	Analog Output (AO) calibration. Declaration of the electrical current value present at the analog output. Bottom point adjustments. See MAINTENANCE chapter.
	Analog Output (AO) calibration. Declaration of the electrical current value present at the analog output. Upper point adjustments. See MAINTENANCE chapter.
	Restores the factory calibration for all inputs and outputs, disregarding modifications conducted by the user.
	This screen is for information purpose only. This parameter is not used for the input function type .
	Allows defining a new access password, always different from zero.
	Sets up the level of protection. See Table 03.
	Enables the Hold Program function on thekey.
	Enables the display of the Control parameter in the Operation Cycle () of the controller. In this parameter, you set the operation mode. Automatic control mode. Manual control mode.
	Enables the display of the Run Program () in the Operation Cycle.

	Enables the display of the RUN parameter in the Operation Cycle.
	Displays the first four digits of the electronic serial number of the controller.
	Displays the last four digits of the electronic serial number of the controller.

CONFIGURATION PROTECTION

The controller allows you to protect the configuration made, preventing undue changes. In the Calibration Cycle, the Protection parameter () determines the protection level to be adopted, limiting access to the cycles, according to the table below:

PROTECTION LEVEL	PROTECTED CYCLES
1	Only the Calibration Cycle is protected.
2	Timer and Calibration Cycle are protected.
3	Input and Calibration Cycles are protected.
4	Alarms, Input, Timer, and Calibration Cycles are protected.
5	Programs, Alarms, Input, and Calibration Cycler are protected.
6	Tuning, Programs, Alarms, Input, Timer, and Calibration Cycler are protected.
7	All cycles, except SP screen in Operation Cycle, are protected.
8	All cycles, including SP, are protected.

Table 3 – Protection levels

ACCESS PASSWORD
When accessed, the protected levels request the Access Password for granting permission to change the configuration of the parameters on these levels.
The prompt precedes the parameters on the protected levels.
If no password is entered, the parameters of the protected levels can only be visualized.
You can set the Access Password in the parameter Password Change (), present in the Calibration Cycle.
The factory default for the password code is 1111.

PROTECTION ACCESS PASSWORD
The protection system built into the controller blocks for 10 minutes the access to protected parameters after 5 consecutive frustrated attempts of guessing the correct password.
MASTER PASSWORD
The Master Password allows you to define a new password in the event of it being forgotten. The Master Password does not grant access to all parameters, only to the Password Change parameter (). After defining the new password, the protected parameters may be accessed (and modified) using this new password.
The master password is made up by the last three digits of the serial number of the controller added to the number 9000.
As an example, for the equipment with serial number 07154321, the master password is 9 3 2 1.

RAMP AND SOAK PROGRAMS

Feature that allows you to create a behavior profile for the process.
Each program consists of a set of up to 4 segments, called RAMP AND SOAK PROGRAM, defined by SP values and time intervals.
Up to 5 different ramp and soak programs can be created. The figure below displays a profile model:Once the program is defined and executed, the controller automatically generates the SP according to the program.
To execute a program with several segments smaller than 4 (four), simply program 0 (zero) for the next segment time to the last desired segment.
The program tolerance function defines the maximum deviation between PV and SP during program execution. If this deviation is exceeded, the time count is interrupted until the deviation is within the programmed tolerance (gives SP priority). If zero is set in the tolerance, the controller executes the defined program without
considering any deviations between PV and SP (gives priority to time).
The configured time limit for each segment is 5999 and can be displayed in seconds or minutes, depending on the time base configured.

RESTORE PROGRAM AFTER POWER FAILURE
Function that defines the behavior of the controller when it resumes from a power failure during a program execution of ramps and soaks.
The restore options are:
Returns at the beginning of the program.
Returns the beginning of the segment.
Returns to the point of the previous program segment the power failure (*).
Returns with control disabled ().

(*) In the option Returns to the point of the previous program segment (), you must consider uncertainties of up to 1 minute between the time of the segment at the moment of the power outage and the time of the segment adopted to resume the execution of the program at the moment of the power supply return.
The option has its performance related to the configuration adopted by the parameter . Thus, it also has the following functions:

1. With set to zero, the controller resumes the execution of the program immediately after the energy return (from the point and segment where it stopped), regardless of the PV value at that time.
2. With non-zero, the controller waits until PV enters the deviation range defined by the value of and then resumes the program execution.

PROGRAM LINK
It is possible to create a large, more complex program with up to 20 segments connecting the 5 programs. Thus, at the end of the execution of a program, the controller immediately starts executing another program.
When creating a program, it was defined in the screen whether there will be connection to another program.
For the controller to be able to run a certain program or programs continuously, simply connect a program to itself or the last program to the first one.EVENT ALARM
The Event Alarm function allows you to program the triggering of alarms in specific segments of a program.
For this function to operate, the alarms to be triggered must have their function set to and are configured in parameters .

HOLD PROGRAM FUNCTION

This function stops program execution when the key is pressed.
The H.Prg parameter of the Calibration Cycle enables the key to perform this function.
Pressing the key for 1 second will immediately stop the program.
A new press, also of 1 second, resumes its execution.
While the program is stopped, the RUN indicator on the controller frontal remains flashing.

PID PARAMETERS DEFINITION

During the process of determining automatically the PID parameters, the system is controlled in ON/OFF in the programmed Setpoint. The auto-tuning process may take several minutes to be completed, depending on the system. The steps for executing the PID autotuning are:

• Select the process Setpoint.
• Enable auto-tuning at the parameter , selecting or FULL.

The option performs the tuning in the minimum possible time, while the option gives priority to accuracy over the speed.
The sign TUNE remains lit during the whole tuning phase. You must wait for the tuning to be completed before using the controller.
During auto tuning period the controller will impose oscillations to the process. PV will oscillate around the programmed set point and controller output will switch on and off many times.
If the tuning does not result in a satisfactory control, refer to Table 4 for guidelines on how to correct the process behavior:

PARAMETER	VERIFIED PROBLEM	SOLUTION
Proportional Band	Slow answer	Decrease
	Great oscillation	Increase
Rate Integration	Slow answer	Increase
	Great oscillation	Decrease
Derivative Time	Slow answer or instability	Decrease
	Great oscillation	Increase

Table 4 – Guidance for manual adjustment of the PID parameters

MAINTENANCE

PROBLEMS WITH THE CONTROLLER
Connection errors and inadequate programming are the most common errors found during the controller operation. A final revision may avoid loss of time and damages.
The controller displays some messages to help you identify problems.

MESSAGE	PROBLEM DESCRIPTION
—-	Open input. No sensor or signal.
	Connection and/or configuration problems. Check the wiring and the configuration.

Table 5 – Error messages
Other error messages may indicate hardware problems requiring maintenance service.

INPUT CALIBRATION
All inputs are factory calibrated and recalibration should only be done by qualified personnel. If you are not familiar with these procedures do not attempt to calibrate this instrument.
The calibration steps are:

a. Configure the input type to be calibrated in the type parameter.
b. Configure the lower and upper limits of indication for themaximum span of the selected input type.
c. Go to the Calibration Cycle.
d. Enter the access password.
e. Enable calibration by setting parameter.
f. Using an electrical signals simulator, apply a signal a little higher than the low indication limit for the selected input.
g. Access the parameter With the keys and adjust the display reading such as to match the applied signal. Then press the key.
h. Apply a signal that corresponds to a value a little lower than the upper limit of indication.
i. Access the parameter. With the keys and adjust the display reading such as to match the applied signal.
j. Return to the Operation Cycle.
k. Check the resulting accuracy. If not good enough, repeat the procedure.
Note 9: When checking the controller calibration with a Pt100 simulator, pay attention to the simulator minimum excitation current requirement, which may not be compatible with the 0.170 mA excitation current provided by the controller.

SERIAL COMMUNICATION

The controller can be supplied with an asynchronous RS485 digital communication interface for master-slave connection to a host computer (master).
The controller works as a slave only and all commands are started by the computer which sends a request to the slave address. The addressed unit sends back the requested reply.
The controller also accepts Broadcast commands.
FEATURES

• Signals compatible with RS485 standard. MODBUS (RTU) Protocol. Two wire connection between 1 master and up to 31 (addressing up to 247 possible) instruments in bus topology. The communication signals are electrically insulated from the rest of the device.
• Maximum connection distance: 1000 meters.
• Time of disconnection for the controller: Maximum 2 ms after last byte.
• Selectable speed; 8 data bits; 1 stop bit; selectable parity (no parity, pair or odd).
• Time at the beginning of response transmission: maximum 100 ms after receiving the command.
  The RS485 signals are:

D1	D	D +	B	Bi-directional data line.	Terminal 15
D0		D –	A	Bi-directional inverted data line.	Terminal 16
C				Optional connection that improves the performance of the communication.	Terminal 17
GND

PARAMETERS CONFIGURATION FOR SERIAL COMMUNICATION
Three parameters must be configured for using the serial type:

Communication speed.
Communication parity.
Communication address for the controller.

REDUCED REGISTERS TABLE FOR SERIAL COMMUNICATION

COMMUNICATION PROTOCOL
The MOSBUS RTU slave is implemented. All configurable parameters can be accessed for reading or writing through the communication port. Broadcast commands are supported as well (address 0).

The available Modbus commands are:

03 – Read Holding Register
05 – Write Single Coil
06 – Write Single Register
16 – Write Multiple Register

The most used registers are listed below. For complete information, see the Registers Table for Serial Communication, available in the N1050 section of our website www.novusautomation.com.
All registers are 16-bit signed integers.

ADDRESS	PARAMETER	REGISTER DESCRIPTION
0000	Active SP	Read: Active control SP (main SP, from ramp and soak or from remote SP). Write: to main SP. Range: from .
0001	PV	Read: Process Variable. Write: Not allowed. Range: Minimum value is the one configured in  and the maximum value is the one configured in . Decimal point position depends on  value. In case of temperature reading, the value read is always multiplied by 10, independently of  value.
0002	MV	Read: Output Power in automatic or manual mode. Write: Not allowed. See address 28. Range: 0 to 1000 (0.0 to 100.0 %).

IDENTIFICATION

N1050

A

B

C

A: Available outputs:
PR: OUT1 = Pulse / OUT2 = Relay
PRRR: OUT1 = Pulse / OUT2 = OUT3 = OUT4 = Relay
PRAR: OUT1 = Pulse / OUT2 = Relay / OUT3 = 0-20 / 4-20 mA / OUT4 = Relay
B: Serial communication:
(Blank) (basic version, without serial communication)
485 (RS485 serial version, Modbus protocol)
C: Power supply:
(Blank): ………………. Model standard ……………. 100~240 Vac / 48~240 Vdc; 50~60 Hz
24 V: ……………………….. Model 24 V …………………… 12~24 Vdc / 24 Vac

SPECIFICATIONS

DIMENSIONS: ………………. 48 x 48 x 80 mm (1/16 DIN)
Panel cutout: ……………………………….. 46 x 46 mm (+0.5 -0.0 mm)
Approximate weight: …………………….75 g
POWER SUPPLY:
Standard model: ………………… 100 to 240 Vac (±10 %), 50/60 Hz …………………… 48 to 240 Vdc (±10 %)
24 V model: …………………. 12 to 24 Vcc / 24 Vca (-10 % / +20 %)
Maximum consumption: ……………………………. 6 VA
ENVIRONMENTAL CONDITIONS:
Operation temperature: …………………. 0 to 50 °C
Relative humidity: ……………………… 80 % @ 30 °C
For temperatures above 30 °C, reduce 3 % for each °C.
Internal use; Category of installation II, Degree of pollution 2, Altitude < 2000 meters.
TIMER
Timer ranges: …………………… 00:00 to 99:59 (mm:ss) ………………. 00:00 to 99:59 (hh:mm)
Delay when turning on the device: ……………………… 200 ms
Accuracy: ………………..0.5% of the measured value
OUTPUT RESPONSE TIME: …………….. 10 ms for relay output ……………….. 0.3 ms for pulse output
INPUT: ……………………….. J, K, T, S and Pt100 (according to Table 1)
Internal resolution: ……………. 32767 levels (15 bits)
Display resolution: ………….. 12000 levels (from -1999 up to 9999)
Input reading rate: …………………. up 10 per second (*)
Accuracy: ……. Thermocouples J, K, T: 0.25 % of the span ±1 °C ……………. Thermocouple S: 0.25 % of the span ±3 °C ……….. Pt100: 0.2 % of the span
Input impedance: ……………… Pt100 and thermocouples: > 10 MΩ
Pt100 measurement: ………………. 3-wire type (α = 0,00385)
With compensation for cable length, excitation current of 0.170 mA.
(*) Value adopted when the Digital Filter parameter is set to 0 (zero) value. For Digital Filter values other than 0, the Input Reading Rate value is 5 samples per second.

OUTPUTS:

OUT1: ………………………………….. Voltage pulse, 5 V / 50 mA max.
OUT2: ………………………….. Relay SPST; 1.5 A / 240 Vac / 30 Vdc
OUT3 (PRRR): ……………… Relay SPST; 1.5 A / 240 Vac / 30 Vdc
OUT3 (PRAR): ……………….. 0-20 mA or 4-20 mA ……………. 500 Ohms max.; 12000 levels; Isolated
OUT4: …………………………….. Relay SPDT; 3 A / 240 Vac / 30 Vdc
FRONT PANEL: ……………………. IP65, Polycarbonate (PC) UL94 V-2
HOUSING: ……………… IP20, ABS+PC UL94 V-0
SPECIFIC CONNECTIONS FOR TYPE PIN TERMINAL.
DISPLAY: LCD type, alphanumeric with 11 segments.
PROGRAMMABLE CYCLE OF PWM: From 0.5 up 100 seconds.
START-UP OPERATION: After 3 seconds connected to the power supply.
CERTIFICATIONS: CE, UKCA and UL.

WARRANTY

Warranty conditions are available on our website www.novusautomation.com/warranty.

N1050 Controller

Documents / Resources

	NOVUS N1050 Temperature Controller Combines [pdf] User Manual N1050, Temperature Controller Combines, N1050 Temperature Controller Combines, Controller Combines, Combines
	NOVUS N1050 Temperature Controller [pdf] Instruction Manual N1050 Temperature Controller, N1050, Temperature Controller, Controller

References

• User Manual