Novus N2000 User manual

NOVUS AUTOMATION 1/11
Controller N20
00
UNIVERS
AL PROCESS CONTROLLER – INSTRUCTIONS MANUAL – V3.0x E
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 or WARNING:
Read complete instructionsprior to
installation and operation ofthe unit.
CAUTION or WARNING:
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.
PRESENTATION
The N2000 is an extraordinarily versatile process controller. It holds
in one single instrument all the main features needed for the vast
majority of industrial processes. It accepts in a single model virtually
all the sensors and signals used in the industry and provides the
main output types required for the operation of diverse processes.
The configuration can be performed directly on the controller or through
the USB interface. The NConfig software (free) is the configuration
management tool. Connected to the USB of a Windows computer, the
controller is recognized as a serial communications port (COM) running
with a Modbus RTU protocol.
Through the USB interface, even if disconnected from the power
supply, the configuration performed in a piece of equipment can be can
be saved in a file and repeated in other pieces of equipment that
require the same configuration.
It is important that the users read carefully this manual before using the
controller. Verify if the release of this manual matches the instrument
version (the firmware version is shown when the controller is
energized).
•Multi-sensor universal input (sensors and standard signals);
•Relay, 4-20 mA and logic pulse control outputs all available in the
standard model;
•Self-tuning of PID parameters;
•Automatic / Manual function with “bumpless” transfer;
•Four modes of independents alarms, with functions of minimum,
maximum, differential (deviation), open sensor and event;
•Timer functions that can be associated to the alarms;
•Retransmission of PV or SP in 0-20 mA or 4-20 mA;
•Input for remote setpoint;
•Digital input with 5 functions;
•Programmable soft-start;
•7 setpoint profile programs with 7 segments each, with the ability
to be linked together for a total of 49 segments;
•RS-485 Serial communication, MODBUS RTU protocol;
•Password for parameters protection;
•Universal power supply.
CONFIGURATION
INPUT TYPE SELECTION
Select the input type (in parameter “
tYPE
”) from Table 1 below.
TYPE CODE CHARACTERISTICS
J
Tc j
Range: -110 a 950 ºC (-166 a 1742 ºF)
K
Tc k
Range: -150 a 1370 ºC (-238 a 2498 ºF)
T
Tc t
Range: -160 a 400 ºC (-256 a 752 ºF)
N
Tc n
Range: -270 a 1300 ºC (-454 a 2372 ºF)
R
Tc r
Range: -50 a 1760 ºC (-58 a 3200 ºF)
S
Tc s
Range: -50 a 1760 ºC (-58 a 3200 ºF)
B
Tc b
Range:400 a 1800 ºC (752 a 3272 ºF)
E
Tc e
Range: -90 a 730 ºC (-130 a 1346 ºF)
Pt100
Pt
Range: -200 a 850 ºC (-328 a 1562 ºF)
0–50mV
L.0.50
Linear Signals
Programmable indication from-1999 to 9999
4-20 mA
L.4.20
0-5 Vdc
L0.5
0-10 Vdc
L0.10
4-20 mA
Sqrt
4-20 mA input with Square Root extraction.
Programmable indication from-1999 to 9999
4-20 mA
NO
LINEAR
ln j
Non Linear Analog Signals
Indication range dependson the selected sensor
Ln k
ln t
ln n
ln r
ln s
ln b
ln E
Ln.Pt
Table 1 - Input Types
Note: All input types are factory calibrated.
OUTPUTS, ALARMS AND DIGITAL INPUTS CONFIGURATION
The controller input/output channels can assume multiple functions,
depending on configuration: control output, alarm output, digital
output, digital input, and PV or SV analog retransmission. These
channels are identified as I/O1, I/O2, I/O3, I/O4, I/O 5 and I/O6.
The basic controller model comes loaded with:
I/O1 and I/O2 - SPDT relay output;
I/O3 and I/O4 - SPST relay output;
I/O5 -analog output (0-20or4-20 mA), pulse 10 V max, digital I/O;
I/O6 - Digital Input.
Note: When a function is selected to operate through digital
input, the controller does not respond to the equivalent function
command given in the frontal keypad.

Controller N2000
NOVUS AUTOMATION 2/11
The function to be used in each channel of I/O is defined by the user
in accordance with the options shown in the Table 2.
I/O FUNCTION I/O TYPE CODE
No function -
OFF
Alarm1 Output Output
A1
Alarm2 Output Output
A2
Alarm3 Output Output
A3
Alarm4 Output Output
A4
LDB Output - Loop break detection Output
Lbd
Control Output (Relay or Digital Pulse) Output
CTRL
Automatic/Man mode change Digital Input
mAN
Run/Stop mode change Digital Input
RVN
Selected Remote SP Digital Input
RSP
Freezes program execution Digital Input
KPRG
Program 1 selection Digital Input
PR 1
0 to 20 mA analog control output Analog Output
(.0.20
4 to 20 mA analog control output Analog Output
(.4.20
0 to 20 mA PV retransmission Analog Output
P.0.20
4 to 20 mA PV retransmission Analog Output
P.4.20
0 to 20 mA SP retransmission Analog Output
S.0.20
4 to 20 mA SP retransmission Analog Output
S.4.20
Table 2 - I/O channel functions
The description for the functions follows:
•
OFF
- No function.
The I/O channel programmed with code 0 will not be used by the
controller. It is available to be used by serial communication as digital
output.
•
A1, A2, A3, A4
- Alarm output.
Available for all I/O channels. The selected channel can be used as
output to Alarms 1 to 4.
•
Lbd
– Loop Break Detector function.
Assigns the output of the Loop Break Detector alarm to an I/O
channel. Available to all I/O channels.
•
CTRL
- PWM control output.
Defines the channel to be used as control output (relay or digital
pulse). Available for all the channels. The digital pulse is available
on (when available) I/O5 and I/O6.
•
mAN
- Digital input with Auto/Manual function.
Defines the channel as Digital Input with the function of switching the
control mode between Automatic and Manual. Available for I/O5,
I/O6 and key .
Closed: Manual control /no
Opened: Automatic control /YES
•
RVN
- Digital input - Standard for I/O5, I/O6 and key. Start/Stop
input (“
rvn
”: YES /no).
Closed: outputs enabled/ YES
Opened: outputs disabled/ no
•
RSP
- Digital input - Standard for I/O5, I/O6 and key.
Closed: remote SP (4-20 mA in remote SP input)
Opened: main SP (internal programmed SV)
•
KPRG
- Digital input - Standard for I/O5, I/O6 and key.
Opened: enables R&S program
Closed: holds R&S program (the program resumes when the contact
is opened again)
Closed Contact: Enables execution of the program
Opened Contact: Interrupts execution of the program
Note: Even when the execution of the program is interrupted,
the control output remains active and controlling the process at
the point (Setpoint) of interruption. The program will resume its
normal execution starting from this same point when the digital
input is closed.
•
PR 1
- Digital input - Standard for I/O5, I/O6 and key. Selects
R&S program 1. Used to alternate between the main Setpoint and
a second Setpoint defined by the R&S program 1.
Closed:selects program 1
Opened: uses main Setpoint
•
(.0.20
/
(.4.20
- 0-20 mA and 4-20 mA Control Output.
Available for I/O 5 only, defines the channel as a 0-20 mA and 4-20 mA
control output.
•
P.0.20
/
P.4.20
- 0-20 mA and 4-20 mA PV retransmissions.
Available for I/O 5 only, configures the channel to retransmit the PV
measurement in 0-20 mA and 4-20 mA.
•
S.0.20
/
s.4.20
- 0-20 mA and 4-20 mA SP (Setpoint)
retransmissions.
Available for I/O 5 only, configures the channel to retransmit the
values of SP in 0-20 mA and 4-20 mA.
ALARMS FUNCTIONS
The controller has 4 independent alarms. They can be programmed
to operate with eight different functions, represented in Table 3.
•
off
– Alarms turned
off
.
•
ierr
– Sensor break alarm
It is activated whenever the input sensor is broken or disconnected.
•
rs
– Ramp & soak program event alarm
This alarm is activated by the Ramp & Soak program (refer to the
PROGRAMS OF RAMP AND SOAK section on how to set the event
alarm).
•
lo
– Alarm of Absolute Minimum Value
It is activated when the measured value is below the value defined in
the alarm Setpoint.
•
ki
– Alarm of Absolute Maximum Value
It is activated when the measured value is above the value defined in
the alarm Setpoint.
•
dif
– Alarm of Differential Value
In this function, the parameters “
SPA1
”, “
SPA2
”,”
SPA3
” and “
SPA4
”
represent the PV deviation as compared to the main SP.
Using the Alarm 1 as example: for Positive SPA1 values, the
differential alarm will be triggered when the PV value is out of the
range defined in: (SP –SPA1) to (SP + SPA1)
For a negative SPA1 value, the differential alarm will be triggered
when the PV value is within the range defined above
•
difl
– Alarm of Minimum Differential Value
It is activated when the PV value is below the value defined in:
(SP –SPA1)
Using the Alarm 1 as example.
•
difk
– Alarm of Maximum Differential Value
It is activated when the PV value is above the value defined in:
(SP + SPA1)
Using the Alarm 1 as example.

Controller N2000
NOVUS AUTOMATION 3/11
The alarm functions are described in Table 3.
TYPE
PROMPT
ACTION
Disabled
off
No active alarm. This output can be usedas a
digitaloutputto be set bythe serial
communication.
Sensor Break
(input Error)
ierr
Alarm will be ON if PV sensor breaks, input signal
is out of range or Pt100 is shorted.
EventAlarm
(rampand
Soak)
rs
Can be activated at a specificsegment oframp
and soakprogram.
Low Alarm
lo
SPAn
PV
High Alarm
ki
SPAn
PV
LOW
Differential
difl
SV
PV
SV -SPAn
positive SPAn
SV
PV
SV -SPAn
negativeSPAn
HIGH
Differential
difk
positive SPAn negative SPAn
Differential
dif
SV
PV
SV + SPAn
SV - SPAn
positive SPAn
SV
PV
SV -SPAn
SV + SPAn
negative SPAn
Table 3 - Alarm functions
ALARM TIMER FUNCTIONS
The controller alarms can be configured to perform 4 timer modes:
•Continuous (normal mode).
•One pulse with defined duration;
•Delayed activation;
The illustrations in Table 4 show the behavior of the alarm output for
various combinations of times T1 and T2. The timer functions can be
configured in parameters
A1t1
,
A2t1
,
A3t1
,
A4t1
,
A1t2
,
A2t2
,
A3t2
,
A4t2
.
ALARM
FUNCTION
T1
T2
ACTION
Normal
0
0
Alarm Event
Alarm
Output
Delayed
0
1 s to 6500
s
Alarm Event
Alarm
Output
T2
Pulse
1 s to 6500
s
0
Alarm Event
Alarm
Output
T1
Oscillator
1 s to 6500
s
1 s to 6500
s
Alarm Event
Alarm
Output
T1
T2
T1
Table 4 - Advanced Timer Alarm.
The LEDs associated to the alarms will light when the alarm
condition is recognized, not following the actual state of the output,
which may be temporarily OFF because of the temporization.
ALARM INITIAL BLOCKING
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 actuate only after the occurrence of a non alarm
condition followed by a new occurrence for the alarm.
The initial blocking is disabled for the sensor break alarm function.
SQUARE ROOT EXTRACTION
Available when input type 19 is selected. The indicator displays the
square root of the current signal input applied to terminals 22 and 24.
ANALOG RETRANSMISSION OF PV AND SP
The analog output, when not used for control purposes, is available
for retransmitting the SV and SP values in 0-20 or 4-20 mA. This
analog output is electrically isolated from other inputs and outputs.
The analog output signal is scaleable, with the output range
determined by the values programmed in the parameters “
SPLL
”
and “
SPkL
”. To obtain a voltage output, connect a resistor shunt to
the current output terminals.
It is possible to obtain a voltage output by installing a resistor shunt
(550 Ω max.) to the current output terminals (terminals 7 and 8). The
actual resistor value depends on the desired output voltage span.
SOFT START
The soft-start feature avoids abrupt variations in the power delivered
to the load regardless of the system power demand.
This is accomplished by defining a limiting ramp for the control output.
The output is allowed to reach maximum value (100 %) only after the
time programmed (in seconds) in the soft-start parameter has elapsed.
The Soft-start function is generally used in processes that require slow
start-up, where the instantaneous application of 100 % of the available
power to the load may cause damages to parts of the system.
In order to disable this function, the soft-start parameter must be
configured with 0 (zero).
Note:
1- This feature is available only with PID (Proportional Band greater
than zero).
2-This feature is disabed if the parameter is set to 0 (zero)
REMOTE SETPOINT
The controller can have its Setpoint value defined by an analog,
remotely generated signal. This feature is enabled through the
channels I/O3, I/O4 or I/O5 when configured as digital inputs and
configured with the function
rsp
(Remote SP selection) or through
the parameter
E.rsp
. The remote Setpoint input accepts the signals
0-20 mA, 4-20 mA, 0-5 V and 0-10 V.
For the signals of 0-20 and 4-20 mA, a shunt resistor of 100
Ω
is
required between terminals, as shown in Figure 4d.
LBD - LOOP BREAK DETECTION ALARM
The parameter defines a time interval, in minutes, within which the
PV is expect to react to a control output signal. If the PV does not
react properly within the time interval configured in
lbd.t
, the
controller interprets this as a control loop break and signals this
occurrence in the display.
A LBD event may be sent to any I/O channel. Simply configure the
LDB
function to the desired I/O channel: the selected output will be
activated when a
LDB
condition is detected. When the
lbd.t
parameter is programmed with 0 (zero), the
LDB
function is disabled.
The
LDB
is useful in system supervision and troubleshooting, allowing
early detection of problems in the actuator, power source or load.
KEY FUNCTIONS
Both the key digital input can be programmed to execute
functions
RVN , RSP, kPRG, PR1
shown in Table 2. The key
function is configured in parameter (
fFvn
).
KEY
The
key in front panel executes function 6 of Table 2:
Auto/Manual mode change. Operation of this key is enabled in
parameter
mAN
. The MAN indicator lights when the manual control
mode is selected.
EXTRA 24 VDC POWER SUPPLY – AUXILIARY P.S.
The controller provides a voltage power supply of 24 Vdc to excite
field transmitters with 25 mA current capacity. Available at the back
panel terminals 17 and 18.

Controller N2000
NOVUS AUTOMATION 4/11
USB INTERFACE
The USB interface is used for CONFIGURING or MONITORING the
controller. The NConfig software must be used for the configuration.
It makes it possible to create, view, save and open configurations
from the equipment or files in your computer. The tool for saving and
opening configurations in files makes it possible to transfer
configurations between pieces of equipment and to make backup
copies. For specific models, the NConfig software also makes it
possible to update the firmware (internal software) of the controller
through the USB.
For MONITORING purposes you can use any supervisory software
(SCADA) or laboratory software that supports the MODBUS RTU
communication on a serial communications port. When connected to
the USB of a computer, the controller is recognized as a conventional
serial port (COM x). Use the NConfig software or consult the
DEVICE MANAGER in the Windows CONTROL PANEL to identify
the COM port that was assigned to the controller. Consult the
mapping of the MODBUS memory in the controller’s communications
manual and the documentation of your supervisory software to
conduct the MONITORING process.
Follow the procedure below to use the USB communication of the
equipment:
1. Download the NConfig software from our website and install it on
your computer. The USB drivers necessary for operating the
communication will be installed together with the software.
2. Connect the USB cable between the equipment 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 equipment functions cannot operate).
3. Open the NConfig software, configure the communication and
start recognition of the device.
The USB interface IS NOT SEPARATE from the
signal input (PV) or the controller’s digital inputs and
outputs. It is intended for temporary use during
CONFIGURATION and MONITORING periods. For
the safety of people and equipment, it must only be
used when the piece of equipment is completely
disconnected from the input/output signals. Using the
USB in any other type of connection is possible but
requires a careful analysis by the person responsible
for installing it. When MONITORING for long periods
of time and with connected inputs and outputs, we
recommend using the RS485 interface, which is
available or optional in most of our products.
INSTALLATION/ CONNECTIONS
The controller must be fastened on a panel, following the sequence
of steps described below:
•Prepare a panel cut-out of 45 x 93 mm;
•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.
The controller's internal circuits can be removed without undoing the
connections on the back panel.
The controller complete set of features is drawn in Fig. 1. The
features loaded in a particular unit are shown on its label
Fig. 1 - Back panel terminals
RECOMMENDATIONS FOR INSTALLATION
•Input signal wires should be laid out away from power lines and
preferably inside grounded conduits.
•Instrument mains (line) supply should be suitable for this purpose
and should not be shared.
•In controlling and monitoring applications, possible consequences
of any system failure must be considered in advance. The internal
alarm relay does not warrant total protection.
•Use of RC filters (47 R and 100 nF, serial) are highly recommended
when driving solenoids, contactor coils or other inductive loads.
ELECTRICAL CONNECTIONS
If high voltage is applied to
a low voltage input,
irreversible damage will
occur
Fig. 2 – High and Low Voltage AC power wiring
INPUT CONNECTIONS
It is important that they are very well connected; the sensor wires
must be well fixed in the terminals of the rear panel.
Fig. 3a– T/C and Voltage wiring Fig. 3b - RTD input wiring
•Thermocouple (T/C) and 0-50 mV
The Figure 3a indicates the wiring for the thermocouple and 0-50 mV
signals. If the thermocouple wires need to be extended, use
appropriate compensation cables.
•RTD (Pt100):
Figure 3b shows the Pt100 wiring, for 3 conductors. For proper cable
length compensation, use conductors of same gauge and length).
For 4-wires Pt100, leave one conductor disconnected at the
controller. For 2-wire Pt100, short-circuit terminals 22 and 23.

Controller N2000
NOVUS AUTOMATION 5/11
Fig. 4a – Connection of 4-20 mA Fig. 4b – Connection of 5 Vdc
•4-20 mA
Refer to Fig. 4a. (The controller provides an internal electronic shunt
for the input current. No changes in the circuit are necessary).
•0-5 Vdc:
Refer to Figure 4b for connecting voltage signals.
•4-20 mA:
The connections for current signals 4-20 mA must be carried-out
according to Figure 4c.
Fig. 4c -
4-20 mA transmitter using the N2000 24 Vdc supply
•Remote setpoint
The remote Setpoint (SP) is enabled by an external digital signal in
either I/O5 or I/O6, when programmed with the code
rsp
(Select
remote SP input).
An external resistor shunt of 100 Ωis required between the terminals
19 and 20.
Fig. 4d -
Connection for remoteSP
(0-20 / 4-20 mA)
DIGITAL OUTPUT
I/O5 can also be configured as digital output. An example of usage is
shown in Fig. 5. I/O5 is electrically isolated from the sensor input.
Fig. 5 – I/O5 with outputpulse forSSR.
DIGITAL INPUT
I/O5 and I/O6 can be used as digital inputs, accepting either dry contact
or NPN open collector signals. Fig. 6shows a switch driving the I/O5
digital input. The digital input at I/O6 is driven only by dry contact
signals. Fig. 7shows a typical digital input wiring for I/O6.
Fig. 6– Digital input at I/O5 Fig. 7– Digital input at I/O6
OPERATION
The front panel is shown in Fig. 8.
Fig. 8- Front panel parts
Status display/PV: shows the value of PV (Process Variable). When
in programming mode, shows the parameter name.
Parameter display/SV: shows the SV (Setpoint Variable) value and
the value of other parameters of the controller.
COM Indicator: Flashes when communication messages are sent by
the controller.
TUNE Indicator: Lights during the execution of PID automatic tuning.
MAN Indicator: Lights when the controller is in manual.
RUN Indicator: Lights when the controller is active, with control and
alarm outputs enabled.
OUT Indicator: For relay or pulse control output, reflects the actual
state of the output. If an analog output is assigned for control, lights
continuously.
A1, A2, A3 and A4 Indicators: Status of the alarms.
P
- PROG key: used to walk through the menu cycles
- BACK key: go back to the previous displayed parameter
- INCREASE and
- DECREASE keys: Used to change
parameter values
-AUTO/MAN KEY: Shortcut for automatic/manual control
selection. Alternates the control mode between automatic and
manual each time the key is pressed.
-PROGRAMMABLE FUNCTION KEY: Can be assigned to the
special functions described for the
RVN , RSP, KPRG,
e
PR1
according to Table 2.
When the controller is turned on, its firmware version is displayed for
3 seconds, after which the controller starts normal operation. The
values of PV and SV are displayed and the outputs are enabled.
Before the controller is ready to be used in a given process, it
requires some basic configuration, such as:
•Input type (T/C, Pt100, 4-20 mA).
•Control Setpoint Value (SP).
•Control Output Type (relays, 0-20 mA, 4-20 mA).
•PID parameters (or hysteresis for ON / OFF control)

Controller N2000
NOVUS AUTOMATION 6/11
Other functions, including alarms, ramp and soak, timer, digital input,
etc., may be useful for a better system performance. The parameters
are grouped in 7 cycles.
CYCLE ACCESS
1- Operation
Free accessparameters
2- Tuning
Reserved accessparameters
3- R&S Program
4- Alarms
5- Input Configuration
6- I/Os
7- Calibration
The parameters in the operation level (1st level) are easily accessed
through the
P
key. The access deeper levels use the combination
of Keys:
(BACK) and
P
(PROG) pressed simultaneously
Press to advance or to retrocede parameters within a level.
At the end of each level, the controller returns to the operation level.
Keep pressing the
P
key to move fast forward in the level.
Alternatively, the controller returns to the operation level after
pressing the key for 3 seconds.
All configuration parameters are stored in protected memory. The
values are saved when the keys or are pressed after changing
a parameter value. The value of SP is saved upon pressing the
key or every 25 seconds.
PROTECTION OF CONFIGURATION
The controller provides means for protecting the parameters
configurations, not allowing modifications to the parameters values,
avoiding tampering or improper manipulation.
The parameter Protection (
PROt
), in the Calibration level,
determines the protection strategy, limiting the access to particular
levels, as shown by the table below.
Protection
level Protected cycles
1
Only the Calibration level is protected.
2
I/Os and Calibration levels.
3
Tuning, I/Os and Calibration levels.
4
Alarm, Tuning, I/Os and Calibration levels.
5
Programs, Alarm, Tuning, I/Os and Calibration
levels.
6
Tuning, Programs, Alarm, Input, I/Os and
Calibration levels.
7
Operation (except SP), Tuning, Programs, Alarm,
input, I/Os and Calibration levels.
8
Operation, Tuning, Programs, Alarm, Input, I/Os
and Calibration levels.
Table 7 – Levels of Protection for the Configuration
Access Password:
The protected levels, when accessed, request the user to provide the
Access Password for granting permission to change the
configuration of the parameters on these cycles.
The prompt
PASS
precedes the parameters on the protected levels.
If no password is entered, the parameters of the protected cycles can
only be visualized.
The Access Code is defined by the user in the parameter Password
Change (
PAS.(
), present in the Calibration level. The factory default
for the password code is 1111.
Protection of the access code
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 is intended for allowing the user to define a
new password in the event of it being forgotten. The Master
Password doesn’t grant access to all parameters, only to the
Password Change parameter (
PAS(
). 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.
CONFIGURATION PARAMETERS
OPERATION CYCLE
PV Indication
(Red)
SV Indication
(Green)
PV / SP indication- The upper display shows the
current value of PV. The lower display shows the
control SP value.
Avto
Control
Control Mode:
Yes
-Means automatic control mode.
no
-Means manual control mode.
Bumpless transfer between automatic and manual.
PV Indication
(Red)
MV Indication
(Green)
Screen PV and MV:
The upper display shows PV
value and the lower display shows the percentage of
MV applied to the control output. When in manual
control the MV value can be manually changed. When
in auto mode the MV value can only be viewed.
To distinguish the MV display from the SV display,
the MV is shown flashing intermittently.
Pr n
Program
number
Execution of Program - Selects the ramp and soak
profile program to be executed.
0-does not execute program
1a 7-number of the program to be
executed
p.seg
Indicative screen. Shows the current segments
number of the running program.
t.seg
Indicative screen. Shows the current segments
remaining time.
rvn
Control Enable:
YES -means that the control output and alarms
are enabled.
NO -means they are disabled.
AUTO TUNING CYCLE
atvn
Auto Tune: Habilita a sintonia automática dos
parâmetros PID.
YES
-Auto-tune enable
NO
-Do not execute auto tune
Pb
Proportional Band - Percentage of
maximum input
span. Select zero for ON / OFF control.
ir
Integral Rate
‘
Value of the term Iof the PID algorithm, in repetitions
per minute.
Displayed only if proportional band ≠0.
Dt
Derivative
Time
Derivative Time - Value of the term D
of the control
mode PID, in seconds.
Displayed only if proportional band ≠0.
(t
Cycle Time
Pulse Width Modulation (PWM) period in seconds.
Displayed only if proportional band ≠0.
P
P
P

Controller N2000
NOVUS AUTOMATION 7/11
Xyst
Hysteresis
Control Hysteresis: This parameter is only shown for
ON / OFF control.
Displayed only if proportional band = 0.
Act
Action
Control Action:
rE
-Reverse Action usually used for heating.
Dir
-Direct Action usually used for cooling.
bias
Bias function - Allows adding a percentage value
between -100 % and +100 %. to the MV control
output.
The value 0 (zero) disables the function.
Ovll
Output Low
Limit
Minimum percentage value for MV (Manipulated
Variable) when in automatic control and PID. Default
value: 0.0 %
Ovxl
Output High
Limit
Maximum percentage value for MV when in
automatic control and PID. Default value: 100.0%
Sfst
Softstart
SoftStart Function – Time in seconds during which
the controller limits the MV value progressively from
0 to 100 %. It is enabled at power up or when the
control output is activated. If in doubt set zero (zero
value disables the Soft start function).
Sp.a1
Sp.a2
Sp.a3
Sp.a4
Alarm SP: Value that defines the point of activation
for the programmed alarms with the functions “
Lo
” or
“
ki
”.
For the alarms configured with Differential type
functions, this parameter defines deviation (band).
Not used for the other alarm functions.
RAMP AND SOAK PROFILE PROGRAMMING CYCLE
Tbas
Program time
base
Program time base - Defines the time base that will be
used by all Ramp & Soak programs.
Se(
-Time basis in seconds
min
-Time basis in minutes
Pr n
Program
number
Program to be Viewed: Selects the ramp and soak
profile program to be edited/viewed in the following
cycle prompts (7 programs available).
Ptol
Program
Tolerance
Ramp and Soak Tolerance: maximum deviation
between PV and SV. Whenever this deviation is
exceeded the time counter is halted until deviation
lowers to within the tolerance. Set zero to disable this
function.
Psp0
Psp7
Program SP
Ramp and Soak Set Points: (0 to 7): Set of 8 SV
values which define the ramp and soak profile
segments.
Pt1
Pt7
Program
Time
Ramp and Soak Segments: (1 to 7): Set of 7 time
intervals in minutes for the 7 segments of the ramp
and soak program.
Pe1
Pe7
Program
event
Ramp and Soak Event: (1 to 7): Set of 7 values that
define which alarms must be activated during a ramp
and soak program segment. Alarm function depends
on “
rS
”setting (Table 3).
Lp
Link Program
Link Program: number of the next profile program to
be linked following the current program.
0-do not link to any other program.
1 a 7 -number of the program to be linked to.
ALARM CYCLE
Fva1
Fva2
Fva3
Fva4
Function
Alarm
Functions of Alarms. Defines the functions for the
alarms among the options of the Table 3.
oFF, iErr, rS, Lo, xi, DiFL, DiFx, DiF
bla1
bla2
bla3
bla4
Blocking
Alarm
This function blocks the alarm at power-up when the
units is first energized.
YES -enables.
NO -Inhibits this blocking function.
xya1
xya2
xya3
xya4
Histeresis of
Alarm
Defines the differential range between the PV value
at which the alarm is turned on and the value at
which it is turned off. (In engineering units).
A1t1
A2t1
A3t1
A4t1
Alarm Time
t1
Defines the temporization time t1, for the alarms. In
seconds.
The value 0 (zero) disables the function.
A1t2
A2t2
A3t2
A4t2
Alarm Time
t2
Defines the temporization time t2 for the alarms time
functions. In seconds.
The value 0 (zero) disables the function.
flsK
Display flashes in alarm.
Allows visual signalization of an alarm occurrence by
flashing the indication of PV in the operation level.The user
chooses which alarms are to be associated with this
feature.
CONFIGURATION CYCLE
Type
Type
Input Type: Selects the input signal type to be
connected to the process variable input. Refer to
Table 1.
This is the first parameter to be set.
fltr
Digital Input Filter. Used to improve the stability of
the measured signal (PV). Adjustable between 0 and
20. In 0 (zero) it means filter turned off and 20 means
maximum filter. The higher the filter value, the slower
is the response of the measured value.
Dppo
Decimal Point
Defines the decimal point position.
VnIt
Unit
Defines the indication unit in Celsius “°
(
“ or
Fahrenheit “°
f
“
This parameter is presented whenever a temperature
sensor is configured as input.
Offs
Offset
Sensor Offset: Offset value to be added to the PV
reading to compensate sensor error.
Default value: zero.
Spll
Setpoint Low
Limit
Defines the SP lower limit of.
For the linear analog input types available (0-
20 mA,
4-20 mA, 0-50 mV and 0-
5 V), defines the minimum
PV
indication range, besides limiting the SP
adjustment.
Defines lower limit for range retransmission PV and
SP.

Controller N2000
NOVUS AUTOMATION 8/11
Spxl
Setpoint High
Limit
Defines the upper limit for adjustment of SP.
For the linear analog input types available (0-
20 mA,
4-20 mA, 0-50 mV and 0-
5 V), defines the maximum
PV indication range, besides limiting the SP
adjustment.
Defines upper limit for range retransmission PV and
SP.
e.rsp
Enable
Remote
SP
Enables remote SP.
YES
-Enables the Function
No
-Does not enable the Function
This parameter is not displayed when the remote SP
selection is defined by a Digital Input.
rsp
Remote
SP
Defines the signal type for the remote SP.
0-20
-current of 0-20 mA
4-20
-current of 4-20 mA
0-5
-voltage of 0-5 V
0-10
-voltage of 0-10 V
Parameter displayed when remote SP is enabled.
Rsll
Remote Set Point Low Limit: Selects the lower range
for indication of the Remote Setpoint.
Rsxl
Remote Set Point High Limit: Selects the upper
range for indication of the Remote Setpoint.
IEov
Percentage output value that will be transfer to MV
when the SAFE output function is enabled. If
1eov
=
0, the SAFE output function is disabled and the
outputs are turned off in the occurrence of a sensor
fail.
Bavd
Baud Rate
Serial Communication Baud Rate selection, in kbps:
1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6 e 115.2
prty
Parity Parity of the serial communication.
none
-Without parity
Ewem
-Even parity
0dd
-Odd parity
Addr
Address
Slave Address Selection: Identifies a slave in the
network. The possible address numbers are from 1
to 247.
I/O CYCLE (INPUTS AND OUTPUTS)
Io 1
I/O 1 Function: Selects the I/O function to be used at
I/O 1 (relay 1).Refer to Table 2 for functions.
Io 2
I/O 2 Function: Selects the I/O function to be used at
I/O 2 (relay 2). Refer to Table 2 for functions.
Io 3
I/O 3 Function: Selects the I/O function to be used at
I/O 3 (relay 3). Refer to Table 2 for functions.
Io 4
I/O 4 Function: Selects the I/O function to be used at
I/O 4 (relay 4). Refer to Table 2 for functions.
Io 5
I/O 5 Function: Selects the I/O function to be used at
I/O 5 (relay 5).Refer to Table 2 for functions.
Io 6
I/O 6 Function: Selects the I/O function to be used at
I/O 6 (relay 6). Refer to Table 2 for functions.
f.fnc
F Key Function: Selects the I/O function assigned to
the front panel key. Available functions are:
off
-Key not used;
rvn
-Start/Stop the controller (RUN function);
rSP
-Select remote setpoint;
kprg
-Execute/Hold ramp and soak profile;
PR1
-Enable/Disable ramp and soak profile
1;
aven
Enable The
Key – Enable or disable operation of
the
key.
Yes
key enabled.
NO
key disabled.
CALIBRATION CYCLE
All input and output types are factory calibrated. This cycle should
only be accessed by experienced personnel. If in doubt do not press
the or keys in this cycle.
pass
Password Input of the Access Password.
This parameter is presented before the protected
cycles. See item Protection of Configuration.
(alib
Calibration
Allows instrument calibration.
YES
-Perform calibration
NO -Do not perform calibration
Inl(
Input Low
Calibration
Input Low Calibration. Enter the value corresponding
to the low scale signal applied to the analog input.
See section MAINTENANCE / Input Calibration.
Inx(
Input High
Calibration
Input High Calibration. Enter the value corresponding
to the full scale signal applied to the analog input.
See section MAINTENANCE / Input Calibration.
rsL(
Remote SP
Low
Calibration
Remote SP Low Calibration. Enter the value
corresponding to the low scale signal applied to the
remote SP input.
See section MAINTENANCE / Input Calibration.
Rsx(
Remote SP
High
Calibration
Remote SP High Calibration. Enter the value
corresponding to the full scale signal applied to the
remote SP input.
See section MAINTENANCE / Input Calibration.
ovL(
Output Low
Calibration
Declaration of lower value present at analog output
See section MAINTENANCE / Input Calibration.
Ovx(
Output High
Calibration
Declaration of upper value present at analog output.
See section MAINTENANCE / Input Calibration.
rstr
Restore
Restores the factory calibration for all input, analog
output and remote SP, disregarding modifications
carried out by the user.
YES
- Recover original factory calibration parameters
no
- Leave as it is (keep current calibration).
(j
Cold
Junction
Cold Junction Offset Calibration: Sets the cold
junction offset calibration.
Pas.(
Password Allows defining a new access password (≠0).
Prot
Protection Sets up the Protection Level. See Table 6.

NOVUS AUTOMATION 9/11
Table 5 shows the sequence of cycles and parameters presented in the indicator display. There are parameters that must be defined for each
alarm available.
OPERATION CYCLE
AUTO TUNING
CYCLE PROGRAMMING
CYCLE ALARM CYCLE CONFIGURATION CYCLE I/O CYCLE
CYCLE
CALIBRATION
PV / SP
Atvn
Tbas
fva1 - fva4
Type
io1
Pass
Avto
Pb
pr n
bla1 - bla4
FLTR
Io2
Inl(
PV / MV
Ir
Ptol
kya1 - kya4
Dppo
Io3
Ink(
Pr n
Dt
psp0 –
psp7
a1t1
Vnit
Io4
Rsl(
P.SEG
(t
pt1 – pt7
a1t2
Offs
Io5
Rsk(
t.seg
Kyst
Pe1 – pe7
a2t1
Spll
Io6
ovl(
rvn
a(t
Lp
a2t2
Spkl
f.fnc
ovk(
Bias
flsk
e.rsp
aven
Rstr
Ovll
Rsp
(j
Ovkl
Rsll
Pas.(
Lbd.t
Rskl
prot
Sfst
IE.ov
Spa1 - spa4
Bavd
Prty
addr
Table 5 - All the controller parameter
RAMP AND SOAK PROFILE PROGRAM
This feature allows for the elaboration of a behavior profile for the
process. Each program is composed of a set of up to 7 segments,
named RAMP AND SOAK PROGRAM, defined by SP values and
time intervals.
When the program is defined and runs, the controller starts to
automatically generate the SP according to the program.
At the end of the program execution, the controller turns the control
output off (“
rvn
”= no).
Up to 7 different profiles with 7 segments each can be
programmed. The figure below displays a profile model:
SP
time
T1
T2
T3
T4
T5
SP0
SP1
SP2
SP3
SP4
SP5
SP6
SP7
T6
T7
Fig. 9 - Example of a complete ramp and soak profile
To execute a profile with fewer segments just program 0 (zero) for
the time intervals that follow the last segment to be executed.
SV
time
T1
T2
T3
SP0
SP1
SP2
SP3
T4=0
Fig. 10 - Example of a profile with fewer segments. (T4 is set 0)
The program tolerance “
Ptol
” defines the maximum deviation
between PV and SV for the execution of the profile. If this deviation is
exceeded, the program will be interrupted until the deviation falls to
within the tolerance band.
Programming 0 (zero) at this prompt disables the tolerance and the
profile execution will not to be halted even if PV does not follow SV
(time priority as opposed to SV priority).
The ramp and soak event function is used to activate alarms at any
segment of program 1. This applies only to program 1.
LINK OF PROGRAMS
It is possible to create a more complex program, with up to 49
segments, joining the seven programs. This way, at the end of a
program execution the controller immediately starts to run another one.
When a program is created, it must be defined in the “
LP
" screen
whether there will be or not another program.
To make the controller run a given program or many programs
continuously, it is only necessary to link a program to itself or the last
program to the first.
SV
time
T1
T2
T3
T4
T5
T1
T2
T3
T4
SP0
SP1
SP2
SP3
SP4
SP5 / SP0
SP1
SP2
SP3
SP4
Program 1
Program 2
Fig. 11- Example of two linked programs
EVENT ALARM
To enable this event function the alarms to be activated must be
selected for
rS
function and are programmed at the
PE1
to
PE7
prompts. The number to be programmed at the prompt defines the
alarms to be activated.
Note:
1- When recovering from power outage the controller resumes the
ramp and soak execution from the beginning of the interrupted
segment a ramp and soak program:
•Program the tolerance value, SP’s, time and event.
•If any event alarm is required program the ramp and soak event
function.
•Set the control mode to automatic.
•Enable program execution in “
rS
“ screen.
•Start control at the
rvn
prompt by selecting YES.
Before executing the program the controller waits for PV to reach the
first set point
SP0
. Should any power failure occur the controller
resumes at the beginning of the segment it currently is.

Controller N2000
NOVUS AUTOMATION 10/11
AUTO TUNE
During auto tune the process is controlled in ON/OFF mode at the
programmed SetPoint (SV). Depending on the process
characteristics large oscillations above and below SV may occur and
auto tuning may take several minutes to be concluded.
The recommended procedure is as follows:
•Disable the control output at the
rvn
prompt by selecting NO.
•Select auto mode operation at the
Avto
prompt by selecting
YES.
•Disable the ramp and soak function (select NO) and program a
new SV value other than the present PV (close to the desired set
point).
•Enable auto tuning at the
Atvn
prompt by selecting YES.
•Enable the control output at the
rvn
prompt by selecting YES.
•The “TUNE” indicator on the display stays lit until the completion
of the automatic tuning process.
•For control output types relay or pulse, the automatic tuning
calculates the longest suitable period (cycle time
(t
) for the
PWM output. The cycle time period may be reduced if the
process experiences some oscillation. When driving a SSR, it’s
recommended to set
(t
= 1 s.
•If the automatic tuning does not result in a satisfactory control,
refer to Table 6for guidelines on how to correct the behavior of
the process.
PARAMETER RESPONSE SOLUTION
ProportionalBand
Slow Response
Decrease
Large Oscillation Increase
Integral Rate
Slow Response
Increase
Large Oscillation Decrease
Derivative Time
Slow Response or Instability
Decrease
Large Oscillation Increase
Table 6 - Suggestions for manual tuning of PID parameters
CALIBRATION
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) Select the input type to be calibrated.
b) Set the desired upper and lower display limits.
c) At the input terminals inject an electrical signal corresponding to
a known indication value a little higher than the lower display
limit.
d) Select the
inL(
prompt. Through the and keys adjust
PV so that it matches the injected signal.
e) Inject a signal that corresponds to a value a little lower than the
upper limit of the display.
f) Select the
ink(
prompt. Through the and keys adjust
PV so that it matches the injected signal.
g) Repeat steps c) to f) to improve calibration.
Note: 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.
ANALOG OUTPUT CALIBRATION
1) Select type 11 or 12 at the I/O5 prompt.
2) Connect a current meter at the analog output.
3) Disable the auto-tune and soft-start functions.
4) Set the output low limit
ovLL
to 0.0 % and the output high limit
ovkL
to 100.0 %.
5) Select the manual mode at the
avto
prompt.
6) Enable the output at the
rvn
prompt.
7) At the operation cycle, set the MV to 0.0 %.
8) At the output low calibration
ovLC
prompt, press the
and
key until the mA meter reads zero mA. Approach this value from
above.
9) Set 100.0 % for the manipulated variable (MV).
10) At the output high calibration
ovkC
prompt, press the
and
key until the mA meter reads 20 mA. Approach this value
from below.
11) Repeat steps 7) to 10) as necessary.
PROBLEMS WITH THE CONTROLLER
Connection errors and inadequate programming are the most
common errors found during the controller operation. A final review
may avoid loss of time and damages.
The controller displays some messages to help the user identify
problems.
MESSAGE
PROBLEM
----
Open input. Without sensor or signal.
Err1
Err6
Configuration or connection problem in the Pt100
cable
Other error messages displayed by the controller can account for errors
in the input connections or type of selected input non-compliant with the
sensor or signal applied to the input. If errors persist, even after a
review, contact the manufacturer. Inform also the device serial number.
To find out the serial number, press
for more than 3 seconds.
The controller also has a visual alarm (the display flashes) when the
PV value is out of the range set by
spxl
and
spll
.
SERIAL COMMUNICATION
The controller can be supplied with an asynchronous RS-485 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.
Broadcast commands (addressed to all controller units in a multidrop
network) are accepted but no reply is sent back in this case.
CHARACTERISTICS
•Signals compatible with RS-485 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.
•The communication signals are electrically isolated from the rest
of the instrument, and can be 1200, 2400, 4800, 9600 and 19200
bps.
•Number of data bits: 8, without parity or pair parity. Number of
stop bits: 1
•Time to start response transmission: up to 100 ms after
acknowledging the command.

Controller N2000
NOVUS AUTOMATION 11/11
The RS-485 signals are:
D1
D
D +
B
Bidirectional data line
Terminal25
D0
D -
A
Inverted bidirectional data line
.
Terminal26
C
Ground. Optional connection to
improve communication
performance
Terminal27
GND
COMMUNICATION PARAMETERS CONFIGURATION
Two parameters must be configured for serial use:
bavd
: Communication speed. All equipments with the same speed.
prty
:Parity of the communication.
Addr
: Controller communication address. Each controller must
have an exclusive address.
SPECIFICATIONS
DIMENSIONS:..........................................................48 x 96 x 92 mm (1/8 DIN)
Approximate weight:.......................................................................150 g
PANEL CUT-OUT:..................................................45 x93 mm (+0.5 -0.0 mm)
POWER:.................................................100 to 240 Vac/dc (±10%), 50/60 Hz.
Transient overvoltage: ±2 kV
Optional24 V:.............................. 12 to24 Vdc / 24Vac (-10% / 20 %)
Max. Consumption:........................................................................ 9 VA
ENVIRONMENTAL CONDITIONS:....................................................5to 50 °C
..........................................Relative humidity(maximum): 80 % upto 30ºC.
..................................For temperaturesabove 30 ºC,decrease 3% per ºC.
Installation categoryII. Pollution degree 2.Altitude <2000 m
INPUT..................................Keyboard selection of input type (refer toTable 1)
Internal resolution:................................................................32767 levels
Display resolution:..............................12000 levels(from -1999 to 9999)
Input sample rate:...............................................................10per second
Accuracy: ...................Thermocouples J, K and T: 0.25 % of span ±1 ºC
.............................Thermocouple E, N, R, S and B: 0.25 % of span ±3 ºC
...................................................................................Pt100: 0.2 % of span
...............................................4-20 mA, 0-50 mV, 0-5 Vdc: 0.2% of span.
Input impedance:..............0-50 mV, Pt100 and thermocouples: >10 MΩ
...............................................................................................0-5 V: >1 MΩ
..............................................................4-20 mA: 15Ω(+2 Vdc@ 20 mA)
Pt100 measurement:..............................................standard (α=0.00385)
Excitation current:..............................................0.170 mA. 3-wire circuit,
cable resistance compensation
All input types are factory calibrated according to IEC-584 for
thermocouples and IEC-751 forPt100.
DIGITAL INPUT:.................I/O5 AND I/O6: Dry contact or NPN open collector
ANALOG OUTPUT:.............................I/O5: 0-20 mA or 4-20 mA, 550 Ωmax.
............................................................................................1500 levels, Isolated
.................................................Control output or PV or SP retransmission
CONTROL OUTPUT:................2 RelaysSPDT (I/O1 and I/O2): 3 A / 240 Vac
.................................2 Relays SPST-NO (I/O3 and I/O4): 1.5 A / 250 Vac
...................................Logic pulse forSSR drive (I/O5): 10 V max/ 20 mA
.....................................Logicpulse for SSR drive (I/O6): 5 V max / 20 mA
SECOND ANALOG INPUT:.................... 4-20 mA remote set point (standard).
AUXILIARY POWER SUPPLY:.....................................24 Vdc, ±10 %; 25 mA
FRONT PANEL:................................................IP65, polycarbonate UL94 V-2;
ENCLOSE: ..................................................................IP30, ABS+PC UL94 V-0
ELECTROMAGNETIC COMPATIBILITY:..........................................................
.......................................................EN 61326-1:1997 and EN61326-1/A1:1998
EMISSION:...........................................................................CISPR11/EN55011
IMMUNITY:....................................EN61000-4-2, EN61000-4-3, EN61000-4-4,
EN61000-4-5, EN61000-4-6, EN61000-4-8 and EN61000-4-11
SECURITY:........EN61010-1:1993 and EN61010-1/A2:1995 (UL file E300526)
USB INTERFACE: 2.0, CDC class (virtual communications port), MODBUS
RTUprotocol.
SPECIFIC CONNECTIONS FOR TYPE FORK TERMINALS OF 6.3 mm;
PROGRAMMABLE PWM CYCLE FROM 0.5 SEC. AND 100 SEC;
START UP: 3 seconds after power up.
CERTIFICATIONS:................................................... CE / UL (FILE: E300526)
ORDERING INFORMATION
N2000 -
485 -
24V
A
B
C
A: Model: N2000;
B: Digital Communication: blank (basic version without serial
communication);
485 (RS485, Modbus protocol);
C: Power Supply: blank (basic version, 100 to 240
Vac/dc);
24V (12 to 24 Vdc / 24 Vac input
voltage).
SAFETY INFORMATION
Any control system design should take into account that any part of the
system has the potential to fail. This product is not a protection or
safety device and its alarms are not intended to protect against product
failures. Independent safety devices should be always provided if
personnel or property are at risk.
Product performance and specifications may be affected by its
environment and installation. It’s user’s responsibility to assure proper
grounding, shielding, cable routing and electrical noise filtering, in
accordance with local regulations, EMC standards and good installation
practices.
SUPPORT AND MAINTENANCE
This product contains no serviceable parts inside. Contact our local
distributor in case you need authorized service. For troubleshooting,
visit our FAQ at www.novusautomation.com.
LIMITED WARRANTY AND LIMITATION OF
LIABILITY
NOVUS warrants to the original purchaser that this product is free from
defects in material and workmanship under normal use and service
within one (1) year from the date of shipment from factory or from its
official sales channel to the original purchaser.
NOVUS liability under this warranty shall not in any case exceed the
cost of correcting defects in the product or of supplying replacement
product as herein provided and upon the expiration of the warranty
period all such liability shall terminate.
For complete information on warranty and liability limitations, check
appropriate section in our website:
www.novusautomation.com/warranty.
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