NOVUS N2000 User Manual
Controller N20
UNIVERS
tYPE
Tc j
Tc k
Tc t
Tc n
Tc r
Tc s
Tc b
Tc e
Pt
L.0.50
L.4.20
L0.5
L0.10
Sqrt
ln j
Ln k
ln t
ln n
ln r
ln s
ln b
ln E
Ln.Pt
00
AL PROCESS CONTROLLER – INSTRUCTIONS MANUAL – V3.0x A
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 instr uct i ons pr ior t o
installation and oper ati on of t he uni t.
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 versatil e process controll er. It holds in
one single instrument al l the main features needed for the vast maj ority
of industrial processes. It acc epts 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 communicati ons 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 equi pment that require
the same configuration.
It is important that the users read carefully thi s manual before using
the controller. Verify if the release of this manual matches the
instrument version (the firmware versi on is shown when the c ontroll er
is energized).
• Multi-sensor universal input (sensors and standard signals);
• Relay, 4-20 mA and logic pulse control outputs al l avai lable 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;
• Comunicação serial RS-485, protocolo MODBUS RTU;
• Password for parameters protection;
• Universal power supply.
NOVUS AUTOMATION 1/11
CAUTION or WARNING:
Electrical S hock Hazard
CONFIGURATION
INPUT TYPE SELECTION
Select the input type (in parameter “
TYPE CODE CHARACTERISTICS
J
K
T
N
R
S
B
E
Pt100
0–50 mV
4-20 mA
0-5 Vdc
0-10 Vdc
4-20 mA
4-20 mA
NO
LINEAR
Range: -110 a 950 ºC (-166 a 1742 ºF)
Range: -150 a 1370 ºC (-238 a 2498 ºF)
Range: -160 a 400 ºC (-256 a 752 ºF)
Range: -270 a 1300 ºC (-454 a 2372 ºF)
Range: -50 a 1760 ºC (-58 a 3200 ºF)
Range: -50 a 1760 ºC (-58 a 3200 ºF)
Range: 400 a 1800 ºC (752 a 3272 ºF)
Range: -90 a 730 ºC (-130 a 1346 ºF)
Range: -200 a 850 ºC (-328 a 1562 ºF)
Linear Signals
Programmable indication from-1999 to 9999
4-20 mA input with Square Root extraction.
Programmable indication from-1999 to 9999
Non Linear Analog Signals
Indication range depends on the selected sensor
Table 1 - Input Types
Note: All input types are factory calibrated.
OUTPUTS, ALARMS AND DIGITAL INPUTS CONFIGURATION
The controller input/output c hannels 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 (0-20 or 4-20 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.
”) from Table 1 below.
Controller N2000
OFF
A1
A2
A3
A4
Lbd
CTRL
mAN
RVN
RSP
KPRG
PR 1
(.0.20
(.4.20
P.0.20
P.4.20
S.0.20
S.4.20
OFF
A1, A2, A3, A4
Lbd
CTRL
mAN
RVN
rvn
RSP
KPRG
PR 1
(.0.20
(.4.20
P.0.20
P.4.20
S.0.20
s.4.20
off
off
ierr
dif
SPA1
SPA2
SPA3
SPA4
difl
difk
The function to be used in each c hannel of I/O i s defined by the user
in accordance with the options shown in the Table 2.
I/O FUNCTION I/O TYPE CODE
No function Alarm 1 Output Output
Alarm 2 Output Output
Alarm 3 Output Output
Alarm 4 Output Output
LDB Output - Loop break detection Output
Control Output (Rel ay or Digital Pulse) Output
Automatic/Man mode c hange Digital Input
Run/Stop mode change Digital Input
Selected Remote SP Digital Input
Freezes program execution Digital Input
Program 1 selecti on Digital Input
0 to 20 mA analog control out put Analog Output
4 to 20 mA analog control out put Analog Output
0 to 20 mA PV retransmission Analog Output
4 to 20 mA PV retransmission Analog Output
0 to 20 mA SP retransmission Analog Output
4 to 20 mA SP retransmission Analog Output
Table 2 - I/O channel f unctions
The description for the functions follows:
•
- No function.
The I/O channel programmed with code 0 will not be used by the
controller. It is available to be us ed by s erial communication as digital
output.
•
- Alarm output.
Available for all I/O channels . The selected channel c an be used as
output to Alarms 1 to 4.
•
– Loop Break Detector function.
Assigns the output of the Loop Break Detector alarm to an I/O
channel. Available to all I/O channels.
•
- 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.
•
- Digital input with Auto/Manual function.
Defines the channel as Digital Input with the funct ion of swit ching the
control mode between Automatic and Manual. Available for I/O5,
I/O6 and key
.
Closed: Manual control /no
Opened: Automatic control /YES
•
- Digit al input - Standard for I/O5, I/O6 and key. Start/Stop
input (“
”: YES / no).
Closed: outputs enabled/ YES
Opened: outputs disabled/ no
•
- 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)
•
- 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.
•
- Di gital input - St andard 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 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.
•
/
- 0-20 mA and 4-20 mA PV retransmissions.
Available for I/O 5 only, configures t he channel to retransmit the PV
measurement in 0-20 mA and 4-20 mA.
•
/
- 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.
•
•
– Alarms turned
– 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.
•
– Alarm of Differential Value
In this function, the parameters “
”, “
”,”
” and “
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 val ue 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
•
– 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.
•
– 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.
”
NOVUS AUTOMATION 2/11
Controller N2000
off
ierr
Alarm will be ON if P V sensor breaks, i nput signal
rs
lo
SPAn
PV
ki
SPAn
PV
difl
SV
PV
SV - SPAn
SV
PV
SV - SPAn
difk
dif
SV
PV
SV + SPAn
SV - SPAn
SV
PV
SV - SPAn
SV + SPAn
A1t1, A2t1, A3t1, A4t1, A1t2, A2t2
A3t2, A4t2
Alarm Event
Alarm
Output
1 s to 6500
Alarm Event
Alarm
Output
T2
1 s to 6500
Alarm Event
Alarm
Output
T1
1 s to 6500
1 s to 6500
Alarm Event
Alarm
Output
T1
T2
T1
SPLL
SPkL
rsp
E.rsp
lbd.t
LDB
LDB
lbd.t
LDB
LDB
RVN , RSP, kPRG, PR1
fFvn
mAN
The alarm functions are described in Table 3.
TYPE PROMPT ACTION
Disabled
Sensor Break
(input Error)
Event Alarm
(ramp and
Soak)
Low Alarm
High Alarm
LOW
Differential
HIGH
Differential
Differential
No active alarm. This output can be used as a
digital output to be set by the serial
communication.
is out of range or Pt100 is shorted.
Can be activated at a specific segment of ramp
and soak program.
positive SPAn
positive SPAn
positive SPAn
Table 3 - Alarm functions
negative SPAn
negative SPAn
negative SPAn
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 elec trically isolated from other inputs and outputs.
The analog output signal is scaleable, with the output range
determined by the values programmed in the parameters “
”. To obtain a voltage output, connect a resistor shunt to the
“
” and
current output terminals.
It is possible to obtain a voltage out put by installing a resistor shunt
(550 Ω max.) to the current output terminals (terminals 7 and 8). T he
actual resistor value depends on the desired output voltage span.
SOFT START
The soft-start feature avoids abrupt variations i n the power delivered
to the load regardless of the system power demand.
This is accomplished by defi ning a limiting ramp for the control output.
The output is allowed to reach maximum value (100 %) only after the
time programmed in the soft-start parameter has elapsed.
The Soft-start function is generally used i n processes that require slow
start-up, where the instantaneous appl ication 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)
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 Tab le 4 show the behavior of the alarm output for
various combinations of times T1 and T2. T he timer functi ons can be
configured in parameters
ALARM
FUNCTION
Normal 0 0
Delayed 0
Pulse
Oscillator
.
T1 T2 ACTION
s
s
s
0
s
Table 4 - Advanced Timer A larm.
The LEDs associated to the alarms will light when the alarm condition
is recognized, not following the actual stat e of the output, which may
be temporarily OFF because of the temporization.
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
the parameter
. The remote Setpoint input accept s the signals
(Remote SP selection) or through
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 resi stor of 100 Ω is
required between terminals, as shown in Figure 4d.
LBD - LOOP BREAK DETECTION ALARM
The parameter defines a t ime 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
, 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 c onfigure the
function to the desired I/O channel: the selected output will be
activated when a
parameter is programmed with 0 (zero), the
The
is useful in system supervisi on and troubleshooting, allowing
condition is detected. When the
function is disabled.
early detection of problems in the actuator, power source or load.
KEY FUNCTIONS
Both the key digital input can be programmed to execute
functions
function is configured in parameter (
shown in Table 2. The key
).
ALARM INITIAL BLOCKING
The initial blocking opti on inhibits the alarm from being recognized if
an alarm condition is present when the controll er 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.
NOVUS AUTOMATION 3/11
KEY
The
key in front panel executes function 6 of Table 2:
Auto/Manual mode change. Operation of this key is enabled in
parameter
. The MAN indic ator lights when the manual control
mode is selected.
EXTRA 24 VDC POWER SUPPLY – AUXILIAR P.S.
The controller provides a voltage power suppl y of 24 Vdc to excite
field transmitters with 25 mA current capac ity. Available at the back
panel terminals 17 and 18.
Controller N2000
r temporary use during
USB INTERFACE
The USB interface is us ed 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 communicati ons 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 c ontroller’ s communic ations
manual and the documentation of your supervisory software to
conduct the MONITORING process.
Follow the procedure below to use the USB c ommunication of the
equipment:
1. Downl oad 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.
4. Cons ult t he NConfig help desk for detailed instructions about how
to use it and solve problems.
Fig. 1 - Backpanel terminals
RECOMMENDATIONS FOR INSTALLATION
• Input signal wires should be lai d out away from power lines and
preferably inside grounded conduits.
• Instrument mains (line) supply should be sui table 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.
The USB interface IS NOT SEPARATE from the
signal input (PV) or the controller’s digital inputs and
outputs. It is intended fo
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 connecti on is possible but
requires a careful analysis by the person responsibl e
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 circui ts can be removed without undoing the
connections on the back panel.
The controller complete set of features is drawn in Figure 1. The
features loaded in a particular unit are shown on its label
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 wiri ng for the thermocoupl e 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.
NOVUS AUTOMATION 4/11
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