Novus N2000 User manual

NOVUS AUTOMATION 1/9
Controller N2000
UNIVERSAL PROCESS CONTROLLER – INSTRUCTIONS MANUAL – V2.1x C
PRESENTATION
The N2000 is a process controller incorporating a PID algorithm and
universal inputs (sensor and standard signals) and outputs (logical,
relay and analog outputs). It holds in one single instrument all de main
features that are needed for the vast ma ority of industrial processes.
SAFETY SUMMARY
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 ARNING:
Read complete instructions prior to
installation and operation of the unit.
CAUTION or ARNING:
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.
OVER-TEMPERATURE PROTECTION
When designing any control system it is essential to consider what
will happen if any part of the system should fail. In temperature
control applications the primary danger is one in which the heating
remains constantly on. In any application where physical in ury or
destruction of equipment might occur, it is recommend to install an
independent protection equipment, with a separate temperature
sensor, to disable the heating circuit in case of overheating. Please
note that the alarm relays within the controller will not give protection
under all failure conditions.
Man 5001132
INSTALLATION
Insert the unit into the panel cut-out and slide the mounting clamp
from the rear to a firm grip at the panel.
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.
Figure 1 - Backpannel terminals
ELECTRICAL CONNECTIONS
All electrical connections are made to the screw terminals at the rear
of the controller. They accept wire sizes from 0.5 to 1.5 mm2 (16 to
22 AWG). The terminals should be tightened to a torque of 0.4 Nm
(3.5 lb in).
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.
PO ER IRING
If high voltage is applied to
a low voltage input,
irreversible damage will
occur
Figure 2 – High and Low Voltage AC power wiring

Controller N2000
NOVUS AUTOMATION 2/9
Thermocouple and Voltage (Volts and mV) input connect as in Figure 3.
Figure 3 – T/C and Voltage wiring Figure 4 - RTD input wiring
RTD (Pt100)
Figure 4 shows the Pt100 wiring, for 3 conductors. Terminals 22, 23
and 24 must have the same wire resistance for proper cable length
compensation. For 2 wire Pt100, short circuit terminals 22 and 23.
Figure 5 – Current wiring Figure 6 – Remote SP input
4-20mA
Refer to Figure 5. (The controller provides an internal electronic
shunt for the input current. No changes in the circuit are necessary).
Remote setpoint
Input available at terminals 19 and 20. The user must connect a 100 Ω
resistor shunt as indicated in Figure 6.
Digital Input
I/O5 and I/O6 can be used as digital inputs, accepting either dry contact
or NPN open collector signals. Figure 7a shows a switch driving the
I/O5 digital input. The digital input at I/O6 is driven only by dry contact
signals. Figure 7b shows a typical digital input wiring for I/O6.
Figure 7a – Digital input at I/O5 Figure 7b – Digital input at I/O6
Digital Output
I/O5 can also be configured as digital output. An example of usage is
shown in Figure 8. I/O5 is electrically isolated from the sensor input.
Figure 8 – I/O5 digital output wiring.
Two-wire 4-20 mA transmitter using the N2000 auxiliary 24 Vdc
supply
Refer to Figure 9 for the correct wiring.
Fig. 9 - 4-20 mA transmitter using the N2000 24 Vdc supply
OPERATION
The front panel is shown in Fig. 10.
Fig. 10 - 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 tunning.
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.
F
-PROGRAMMABLE FUNCTION KEY: Can be assigned to the
special functions described for the f.fvnc
f.fvncf.fvnc
f.fvnc parameter.
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, ...) at the “tYPE
tYPEtYPE
tYPE” prompt,
according to Table 1;
•output type at “I/O 1”, “I/O 2”,... “I/O 6” prompts (see Table 2);
•setpoint variable SV. Set the remaining parameters.
•PID parameters (or hysteresis for ON / OFF control)
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 access parameters *
2- Tuning
3- R&S Program
4- Alarms
5- Input Configuration
6- I/Os
7- Calibration
Reserved access parameters **

Controller N2000
NOVUS AUTOMATION 3/9
*These parameters can be viewed but not changed if the cycle is
protected.
**Requires a key combination to access the cycle.
Press
P
to advance and to go back in the menu cycle.
Keep pressing the
P
or key to move fast forward or backward.
Press and
P
simultaneously to move from one cycle to the next
one.
At the end of each cycle the controller returns to the operation cycle.
PROGRAM SECURITY
Each menu cycle can be locked (protected) by pressing and
simultaneously for 3 seconds. Press and for 3 seconds to
unlock. A short blink of the display confirms the lock/unlock change.
This will alternately lock or unlock the and keys to avoid
tampering.
For further protection, the unlock operation through the keypad may
be disabled by changing the position of an internal strap inside the
controller:
When PROT is OFF, the user is allowed to lock and unlock the
cycles using the keypad as explained above. If PROT is ON, the
cycles lock/unlock operation is disable.
CONFIGURATION
INPUT TYPE SELECTION
Select the input type (in parameter “tYPE
tYPEtYPE
tYPE”) from Table 1 below.
TYPE CODE CHARACTERISTICS
J
0
00
0
Range: -50 to 760 °C (-58 to 1400 ºF)
K
1
11
1
Range: -90 to 1370 °C (-130 to 2498 ºF)
T
2
22
2
Range: -100 to 400 °C (-148 to 752 ºF)
N
3
33
3
Range: -90 a 1300 °C (-130 a 2372 ºF)
R
4
44
4
Range: 0 a 1760 °C (32 a 3200 ºF)
S
5
55
5
Range: 0 to 1760 °C (32 to 3200 ºF)
Pt100
6
66
6
Range: -199.9 to 530.0 °C (-328.0 to 986.0 ºF)
Pt100
7
77
7
Range: -200 to 530 °C (-328 to 986 ºF)
8
88
8
J linearization. Programmable range: -110 to 760 °C
9
99
9
K linearization. Programmable range: -150 to 1370 °C
10
1010
10
T linearization. Programmable range: -160 to 400 °C
11
1111
11
N Linearization. Programmable range: -90 a 1370 °C
12
1212
12
R Linearization. Programmable range: 0 a 1760 °C
13
1313
13
S linearization. Programmable range: 0 to 1760 °C
14
1414
14
Pt100 linearization. Prog. Range:-200.0 to 530.0 °C
4-20 mA
No linear
15
1515
15
Pt100 linearization Prog. Range:-200 to 530 °C
0 to 50 mV
16
1616
16
Linear. Programmable indication -1999 to 9999
4-20 mA
17
1717
17
Linear. Programmable indication -1999 to 9999
0 to 5 Vdc
18
1818
18
Linear. Programmable indication -1999 to 9999
4 to 20 mA
19
1919
19
Square Root Extraction
Table 1 - Input Types
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 (0-20 or 4-20 mA), pulse 10 V max, digital I/O;
•I/O6 – Digital Input;
The function code of each I/O can be selected among the options on
Table 2. Only valid function codes are displayed for each I/O (for
example, I/O1, which is a relay, can be configured with functions 0 to
5 only; on the other hand, I/05 can perform all 16 functions).
The description for the functions follows:
• CODE 0 - 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.
• CODES 1 to 4 - Alarm output - Available for all I/O channels
(except I/O6). The selected channel can be used as output to
Alarms 1 to 4.
• CODE 5 - PWM control output - Available for all I/O channels
(except I/O6).
• CODE 6 - Digital input - Standard for I/O5 and I/O6.
Closed: Manual control
Opened: Automatic control
• CODE 7 - Digital input - Standard for I/O5, I/O6 and
F
key.
Start/Stop input (“rvn
rvnrvn
rvn”: YES / no).
Closed: outputs enabled
Opened: outputs disabled
•CODE 8 - Digital input - Standard for I/O5, I/O6 and
F
key.
Closed: remote SP (4-20 mA in remote SP input)
Opened: main SP (internal programmed SV)
•CODE 9 - Digital input - Standard for I/O5, I/O6 and
F
key.
Opened: enables R&S program
Closed: holds R&S program (the program resumes when the contact
is opened again)
CODE I/O TYPE I/O FUNCTION
0
00
0
Digital Output Digital Output to be set by the serial comm.
1
11
1
Digital Output Alarm 1 Output
2
22
2
Digital Output Alarm 2 Output
3
33
3
Digital Output Alarm 3 Output
4
44
4
Digital Output Alarm 4 Output
5
55
5
Digital Output PWM Control Output
6
66
6
Digital Input Automatic/Manual mode change
7
77
7
Digital Input Run/Stop mode change
8
88
8
Digital Input Select Remote Set Point Input
9
99
9
Digital Input Executes/Holds selected ramp and soak profile
10
1010
10
Digital Input Enable/Disable R&S profile 1 selection
11
1111
11
Analog Output 0 to 20mA Analog control output
12
1212
12
Analog Output 4 to 20mA Analog control output
13
1313
13
Analog Output 0 to 20mA PV retransmission
14
1414
14
Analog Output 4 to 20mA PV retransmission
15
1515
15
Analog Output 0 to 20mA SP retransmission
16
1616
16
Analog Output 4 to 20mA SP retransmission
Table 2 - I/O channel functions
•CODE 10 - Digital input - Standard for I/O5, I/O6 and
F
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
•CODE 11 - Analog control output - I/O5 only. 0-20 mA control
output.
•CODE 12 - Analog control output - I/O5 only. 4-20 mA control
output.
CODES 13 to 16 - Analog retransmission. I/O5 only. Configures I/O5 to
output a 0-20 mA or 4-20 mA analog signal proportional to PV or SP.

Controller N2000
NOVUS AUTOMATION 4/9
ALARMS FUNCTION
The controller has 4 independent alarms. They can be programmed
to operate with nine different functions, represented in Table 3.
•Open sensor
It is activated whenever the input sensor is broken or disconnected.
•Event alarm
It activates alarm(s) in specific segments of the program. See item
6.2 in this manual.
•Resistance fail
Detects a heater broken condition, by monitoring the load current
when the control output is activated. This alarm function requires an
optional device (option 3). Details of the "resistance fail" option can
be found in a specific documentation that is sent with the product
when the option is purchased.
TYPE PROMPT ACTION
Disabled
off
offoff
off
No active alarm. This output can be used as a digital
output to be set by the serial communication.
Sensor Break
(input Error)
ierr
ierrierr
ierr
Alarm will be ON if PV sensor breaks, input signal is
out of range or Pt100 is shorted.
Event Alarm
(ramp and
Soak)
rs
rsrs
rs
Can be activated at a specific segment of ramp and
soak program.
Detection
resistance fail
rfail
rfailrfail
rfail
Detects a heater broken condition
Low Alarm
lo
lolo
lo
SPAn
PV
High Alarm
k
kk
ki
ii
i
SPAn
PV
LOW
Differential
difl
difldifl
difl
SV
PV
SV
-
SPAn
positive SPAn
SV
PV
SV
-
SPAn
negative SPAn
HIGH
Differential
difk
difkdifk
difk
SV
PV
SV + SPAn
positive SPAn
SV
PV
SV + SPAn
negative SPAn
Differential
dif
difdif
dif
SV
PV
SV+SPAn
SV-SPAn
positive SPAn
SV
PV
SV
-
SPAn
SV+SPAn
negative SPAn
Table 3 - Alarm functions
Where SPAn means “SPA1
SPA1SPA1
SPA1”, “SPA2
SPA2SPA2
SPA2”, “SPA2
SPA2SPA2
SPA2” and “SPA4
SPA4SPA4
SPA4”.
•Minimum value
It is activated when the measured value is below the value defined in
the alarm Setpoint.
•Maximum value
It is activated when the measured value is above the value defined in
the alarm Setpoint.
•Differential (or Band)
In this function, the parameters “SPA1
SPA1SPA1
SPA1”, “SPA2
SPA2SPA2
SPA2” represent the PV
deviation as compared to the main SP.
In a positive deviation, the differential alarm will be triggered when
the measured value is out of the range defined in:
(SP – Deviation) and (SP + Deviation)
In a negative deviation, the differential alarm will be triggered when
the measured value is within the range defined above.
•Minimum differential
It is activated when the measured value is below the value defined in.
(SP - Deviation)
•Maximum differential
It is activated when the measured value is above the value defined in:
(SP + Deviation)
ALARM TIMER FUNCTIONS
Alarms 1 and 2 can be programmed to have timer functions. The 3
modes of operation are:
1- Pulse 2- delayed actuation 3- Oscillator
The desired function can be achieved programming the parameters
“A1t1
A1t1A1t1
A1t1”, “A1t2
A1t2A1t2
A1t2”, “A2t1
A2t1A2t1
A2t1” and “A2t2
A2t2A2t2
A2t2” (see Table 4).
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
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
alarme
T1 T2 T1
Table 4 - Advanced Timer Alarm (for alarms 1 or 2)
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.
SOFT START
Defines the time interval for the output to reach its maximum value
(100 %). The soft start value is programmed in “SfSt
SfStSfSt
SfSt”. See also
parameters “ov
ovov
ov ” and “ovk
ovkovk
ovk ”.
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.
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 8 (Select remote
SP input).
An external resistor shunt of 100 Ω is required between the terminals
19 and 20, as shown in Figure 6.
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 “SP
SPSP
SP ” and
“SPk
SPkSPk
SPk ”. To obtain a voltage output, connect a resistor shunt to the
current output terminals (terminal 13 and 14).
F
KEY AND DIGITAL INPUT (I/O6) FUNCTIONS
Both the
F
key and the I/O6 digital input can be programmed to
execute functions 7, 8, 9 and 10 shown in Table 2. The key function
is configured in parameter “ fFvn
fFvnfFvn
fFvn ”. The digital input function is
configured in parameter I/O6.
The digital input can also be configured for function 6: Auto/Manual
mode change.

Controller N2000
NOVUS AUTOMATION 5/9
KEY
The
key in front panel executes function 6 of Table 2:
Auto/Manual mode change. Operation of this key is enabled in
parameter aven
avenaven
aven . The MAN indicator lights when the manual control
mode is selected.
EXTRA 24 VDC PO ER SUPPLY – AUXILIAR 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.
CONFIGURATION PARAMETERS
OPERATION CYCLE
PV Indication
(Red)
SV Indication
(Green)
PV AND SV INDICATION: The status display shows the
present value of PV (Process Variable). The parameter
display shows SV (Set Variable).
The status display shows “- - - -“ whenever PV exceeds the
maximum range or there is no signal at the input. In case of
hardware error the status display will show Ern
ErnErn
Ern, where n is the
error code.
avto
avtoavto
avto
CONTROL MODE: YES indicates automatic control mode
(closed loop, PID or ON/OFF). NO indicates manual control
mode (open loop). Bumpless transfer from auto ↔ to manual
mode is available. If in doubt program YES.
PV Indication
(Red)
MV Indication
(Green)
MANIPULATED VARIABLE VALUE (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
Pr nPr n
Pr n
RAMP AND SOAK PROGRAM SELECTION: Selects the
ramp and soak program to be executed (7 programs
possible). Refer to chapter 7 for R&S description.
rvn
rvnrvn
rvn
CONTROL ENABLE: YES means that the control output and
alarms are enabled and NO means they are disabled.
AUTO TUNING CYCLE
atvn
atvnatvn
atvn
AUTO-TUNE: YES enables the auto tuning of the PID
parameters and NO disables it.
Pb
PbPb
Pb
PROPORTIONAL BAND: Percentage of maximum input span.
0 to 500 %. Select zero for ON / OFF control.
xyst
xystxyst
xyst
CONTROL HYSTERESIS (in engIneering. units): This
parameter is only shown for ON / OFF control (Pb=0).
‘ ir‘
‘ ir‘‘ ir‘
‘ ir‘
INTEGRAL RATE: Integral time constant in repetitions per
minute (Reset).
dt
dtdt
dt
DERIVATIVE TIME: Derivative time constant, in seconds.
(t
(t(t
(t
CYCLE TIME: PWM period in seconds. Can only be viewed if
proportional band is other than zero.
act
actact
act
CONTROL ACTION: For Auto Mode only.
• rE
rErE
rE Reverse Action usually used for heating.
• dir
dirdir
dir Direct Action usually used for cooling.
bias
biasbias
bias
Offset for MV (manual reset). Range: -100 % to +100 %.
Default value: 0.
ovll
ovllovll
ovll
OUTPUT LOW LIMIT: minimum percentage value for MV
(Manipulated Variable) when in automatic control and PID.
Default value: 0.0 %
ovxl
ovxlovxl
ovxl
OUTPUT HIGH LIMIT: Maximum percentage value for MV
when in automatic control and PID. Default value: 100.0%
sfst
sfstsfst
sfst
SOFT START: 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.
Sp.a1
Sp.a1 Sp.a1
Sp.a1
Sp.a2
Sp.a2 Sp.a2
Sp.a2
Sp.a3
Sp.a3 Sp.a3
Sp.a3
Sp.a4
Sp.a4Sp.a4
Sp.a4
ALARM PRESET: Tripping point for alarm 1, 2, 3 and 4.
RAMP AND SOAK PROFILE PROGRAMMING CYCLE
tbas
tbastbas
tbas
TIME BASE: Selects the time base for the ramp and soak.
Valid for all profile programs.
0
0 0
0 - PT1 to PT7 values are in seconds;
1
11
1 - PT1 to PT7 values are in minutes;
Pr n
Pr nPr n
Pr n
PROGRAM TO BE VIEWED: Selects the ramp and soak
profile program to be edited/viewed in the following cycle
prompts (7 programs available).
ptol
ptolptol
ptol
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
Psp0Psp0
Psp0
Psp7
Psp7Psp7
Psp7
RAMP AND SOAK SET POINTS (0 to 7): Set of 8 SV values
which define the ramp and soak profile segments. See also
PT1 to 7 and PE1 to 7 below.
Pt1
Pt1Pt1
Pt1
Pt7
Pt7Pt7
Pt7
RAMP AND SOAK SEGMENTS TIME (1 to 7): Set of 7 time
intervals in minutes or seconds (9999 max.) for the 7
segments of the ramp and soak program.
Pe1
Pe1Pe1
Pe1
Pe7
Pe7Pe7
Pe7
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
rSrS
rS”
setting (Table 3).
lp
lplp
lp
LINK TO PROGRAM: Number of the next profile program to
be linked to follow the current profile. Profiles can be linked to
make larger programs of up to 49 segments.
ALARM CYCLE
Fva1
Fva1Fva1
Fva1
ALARM 1 FUNCTION: Select options from Table 3.
Fva2
Fva2Fva2
Fva2
ALARM 2 FUNCTION: Select options from Table 3.
Fva3
Fva3Fva3
Fva3
ALARM 3 FUNCTION: Select options from Table 3.
Fva4
Fva4Fva4
Fva4
ALARM 4 FUNCTION: Select options from Table 3.
bla1
bla1 bla1
bla1
bla2
bla2 bla2
bla2
bla3
bla3 bla3
bla3
bla4
bla4bla4
bla4
ALARM BLOCK 1 TO 4: This function blocks the alarm at
power-up when the units is first energized.
YES enables and NO inhibits this blocking function. When
enabled the alarm will not be active at power-up waiting for
PV (Process Variable) to reach a non-alarm situation. From
this point on the alarm will be free to actuate should a new
alarm situation occur.
xya1
xya1xya1
xya1
ALARM 1 HYSTERESIS: 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).
xya2
xya2xya2
xya2
ALARM 2 HYSTERESIS: Same as above.
xya3
xya3xya3
xya3
ALARM 3 HYSTERESIS: Same as above.
xya4
xya4xya4
xya4
ALARM 4 HYSTERESIS: Same as above.
A1t1
A1t1A1t1
A1t1
ALARM 1 TIME 1: Defines the time (6500 sec. max.) during
which the alarm 1 output will be ON when alarm 1 is active.
Program zero to disable this function.
A1t2
A1t2A1t2
A1t2
ALARM 1 TIME 2: Defines the OFF state time for the alarm
1 output, after being ON during the time selected on ALARM
1 TIME 1. Program zero to disable this function.
A2t1
A2t1A2t1
A2t1
ALARM 2 TIME 1: Defines the time (6500 sec. max.) during
which the alarm 1 output will be ON when alarm 1 is active.
Program zero to disable this function
A2t2
A2t2A2t2
A2t2
ALARM 2 TIME 2: Defines the time during which the alarm 2
output will be, after being ON during the time selected on
ALARM 2 TIME 1. Program zero to disable this function.
Table 4 shows the advanced features that can be achieved
with these time functions.

Controller N2000
NOVUS AUTOMATION 6/9
CONFIGURATION CYCLE
type
typetype
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.
dppo
dppodppo
dppo
DECIMAL POINT POSITION: For input types 16, 17, 18 or
19 only. Selects the decimal point position to be viewed in
both PV and SV.
vn
vnvn
vnI
II
It
tt
t
TEMPERATURE INDICATION IN ºC OR ºF: Selects the
display indication to be in ºC or ºF. Only available if input type
is other than 16, 17, 18 or 19.
offs
offsoffs
offs
SENSOR OFFSET: Offset value to be added to the PV to
compensate sensor error. Default value: zero.
spll
spllspll
spll
SET POINT LOW LIMIT:
- Linear inputs: Sets the lower range for SV and PV indication.
- T/C and Pt100 inputs: sets the lower range for SV.
spxl
spxlspxl
spxl
SET POINT HIGH LIMIT:
- Linear inputs: Sets the upper range for SV and PV indication.
- T/C and Pt100 inputs: sets the upper range for SV.
rsll
rsllrsll
rsll
REMOTE SET POINT LOW LIMIT: Selects the lower range
for indication of the Remote Setpoint.
rsxl
rsxlrsxl
rsxl
REMOTE SET POINT HIGH LIMIT: Selects the upper range
for indication of the Remote Setpoint.
bavd
bavdbavd
bavd
DIGITAL COMMUNICATON BAUD RATE SELECTION:
0: 1200bps; 1: 2400bps; 2: 4800bps; 3: 9600bps; 4: 19200bps.
addr
addraddr
addr
SLAVE ADDRESS SELECTION: Identifies a slave in the
network. The possible address numbers are from 1 to 247.
I/O CYCLE (INPUTS AND OUTPUTS)
I
II
Io 1
o 1o 1
o 1
I/O 1 FUNCTION: Selects the I/O function to be used at I/O 1
(relay 1). Options 0 to 5 are possible for this output. It is
normally used as option 5, PWM main control output. Refer to
Table 2 for functions.
I
II
Io 2
o 2o 2
o 2
I/O 2 FUNCTION: Selects the I/O function to be used at I/O 2
(relay 2). Options 0 to 5 are available. This output is normally
used as alarm output. See Table 2 for functions.
I
II
Io 3
o 3o 3
o 3
I/O 3 FUNCTION: Selects the I/O function to be used at I/O 3
(option 1). I/O 3 can be a relay output or a digital input/output.
Functions 0 to 10 are available. Refer to Table 2 for
functions. The presence of this I/O option is detected by the
controller and the prompt menu will only be shown if the
expansion option is available.
I
II
Io 4
o 4o 4
o 4
I/O 4 FUNCTION: Selects the I/O function to be used at I/O 4
(option 2). I/O 4 can be a digital input/output. Functions 0 to
10 are available. Refer to Table 2 for functions. The prompt
menu will only be shown if the expansion option is present.
I
II
Io 5
o 5o 5
o 5
I/O 5 FUNCTION: Selects the I/O function to be used at I/O 5
(Analog Output). Functions 0 to 15 are available (See Table
2). This option is normally used for main control output or PV
analog retransmission.
I o 6
I o 6I o 6
I o 6
I/O 6 FUNCTION: Selects the I/O function to be used at I/O 6
(Digital Input). Options 0, 6, 7, 8, 9 and 10 are possible for
this input. Refer to Table 2 for functions.
f.fvnc
f.fvncf.fvnc
f.fvnc
F KEY FUNCTION: Selects the I/O function assigned to the
front panel
F
key. Available functions are:
0
00
0 - Key not used;
7
77
7 - Start/Stop the controller (RUN function);
8
88
8 - Select remote setpoint;
9
99
9 - Execute/Hold ramp and soak profile;
10
1010
10- Enable/Disable ramp and soak profile 1;
Details on these functions are described in section 5.2.
aven
avenaven
aven
ENABLE THE key – Enable or disable operation of the
key.
Yes
YesYes
Yes key enabled.
NO
NONO
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.
Inl(
Inl(Inl(
Inl(
INPUT LOW CALIBRATION: Sets the Process Variable low
calibration (offset). Several keystrokes at or might be
necessary to increment one digit.
Inx(
Inx(Inx(
Inx(
INPUT HIGH CALIBRATION: Sets the Process Variable span
calibration (gain).
ovll
ovllovll
ovll
OUTPUT LOW CALIBRATION: Sets the analog current
output low calibration (offset).
Ovx(
Ovx(Ovx(
Ovx(
OUTPUT HIGH CALIBRATION: Sets the analog current
output span calibration (gain).
(j l
(j l(j l
(j l
COLD JUNCTION OFFSET CALIBRATION: Sets the cold
unction offset calibration.
Rsl(
Rsl(Rsl(
Rsl(
REMOTE SET POINT LOW CALIBRATION: Sets the
Remote Set Point low calibration (offset). Several keystrokes
at or might be necessary to increment one digit.
Rsx(
Rsx(Rsx(
Rsx(
REMOTE SET POINT HIGH CALIBRATION: Sets the
Remote Set Point span calibration (gain).
Table 10 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
PV and SP Atvn
AtvnAtvn
Atvn Tbas
TbasTbas
Tbas Fva1
Fva1Fva1
Fva1 - fva4
fva4fva4
fva4 type
typetype
type Io 1
Io 1Io 1
Io 1
Avto
AvtoAvto
Avto Pb
PbPb
Pb Prn
PrnPrn
Prn Bla1
Bla1Bla1
Bla1 - bla4
bla4bla4
bla4 Dp.po
Dp.poDp.po
Dp.po Io 2
Io 2Io 2
Io 2
PV and MV Ky.st
Ky.stKy.st
Ky.st ptol
ptolptol
ptol Kya1
Kya1Kya1
Kya1 - kya4
kya4kya4
kya4 Vnit
VnitVnit
Vnit Io 3
Io 3Io 3
Io 3
prn
prnprn
prn ir
irir
ir Psp0
Psp0Psp0
Psp0 - PsP7
PsP7PsP7
PsP7 A1t1
A1t1A1t1
A1t1 offs
offsoffs
offs Io 4
Io 4Io 4
Io 4
rvn
rvnrvn
rvn dt
dtdt
dt Pt1
Pt1Pt1
Pt1 – Pt7
Pt7Pt7
Pt7 A1t2
A1t2A1t2
A1t2 Spll
SpllSpll
Spll Io 5
Io 5Io 5
Io 5
(t
(t(t
(t Pe1
Pe1Pe1
Pe1 – Pe7
Pe7Pe7
Pe7 A2t1
A2t1A2t1
A2t1 spkl
spklspkl
spkl Io 6
Io 6Io 6
Io 6
Act
ActAct
Act lp
lplp
lp A2t2
A2t2A2t2
A2t2 rsll
rsllrsll
rsll f.fvnc
f.fvncf.fvnc
f.fvnc
bias
biasbias
bias rskl
rsklrskl
rskl aven
avenaven
aven
Table 10

NOVUS AUTOMATION 7/9
RAMP AND SOAK PROFILE PROGRAM
Seven ramp and soak profiles with up to 7 segments each can be
programmed. Longer profiles of up to 49 segments can be created by
linking 2 or more profiles.
SP
time
T1
T2 T3 T4 T5
SP0
SP1
SP2
SP3
SP4
SP5
SP6
SP7
T6 T7
Figure 11 - Example of a complete ramp and soak profile
To execute a profile with fewer segments ust 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
Figure 12 - Example of a profile with fewer segments. (T4 is set 0)
The program tolerance “Ptol
PtolPtol
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, oining 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 “ P
PP
P" 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. 13 - Example of two linked programs
EVENT ALARM
To enable this event function the alarms to be activated must be
selected for rS
rSrS
rS function and are programmed at the PE
PEPE
PE 0
00
0 to PE
PEPE
PE 5
55
5
prompts. The number to be programmed at the prompt defines the
alarms to be activated (Table 5).
CODE ALARM 1 ALARM 2 ALARM 3 ALARM 4
0
00
0
1
11
1
X
2
22
2
X
3
33
3
X X
4
44
4
X
5
55
5
X X
6
66
6
X X
7
77
7
X X X
8
88
8
X
9
99
9
X X
10
1010
10
X X
11
1111
11
X X X
12
1212
12
X X
13
1313
13
X X X
14
1414
14
X X X
15
1515
15
X X X X
Table 5 - Event codes for ramp and soak
To configure and execute a ramp and soak program:
• Program the tolerance value, SV, time and event.
• If any event alarm is required program the ramp and soak event
function.
• Set the control mode to automatic.
• Select ramp and soak program to be executed at prompt Prn
PrnPrn
Prn
(0 to 7)
• Start control at the rvn
rvnrvn
rvn prompt by selecting YES.
Before executing the program the controller waits for PV to reach the
first set point SP0
SP0SP0
SP0 if Pto
PtoPto
Pto is different than zero.
Should any power failure occur the controller resumes at the
beginning of the segment it currently is.
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
rvnrvn
rvn prompt by selecting NO.
• Select auto mode operation at the Avto
AvtoAvto
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
AtvnAtvn
Atvn prompt by selecting YES.
• Enable the control output at the rvn
rvnrvn
rvn prompt by selecting YES.
During the auto tune procedure the soft-start function will not operate
and large oscillations will be induced around the setpoint. Make sure the
process can accept these oscillations and fast control output changes.
If auto tuning results are not satisfactory refer to Table 6 for manual
fine tuning procedure.
PARAMETER RESPONSE SOLUTION
Slow Response Decrease Proportional Band
Large Oscillation Increase
Slow Response Incre ase Integral Rate
Large Oscillation Decrease
Slow Response or Instability Decrease Derivative Time
Large Oscillation Increase
Table 6 - Suggestions for manual tuning of PID parameters

Controller N2000
NOVUS AUTOMATION 8/9
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 in ect an electrical signal corresponding to
a known indication value a little higher than the lower display
limit.
d) Select the in (
in (in (
in ( prompt. Through the and keys ad ust
PV so that it matches the in ected signal.
e) In ect a signal that corresponds to a value a little lower than the
upper limit of the display.
f) Select the ink(
ink(ink(
ink( prompt. Through the and keys ad ust
PV so that it matches the in ected signal.
g) Repeat steps c) to f) to improve calibration.
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 ov
ovov
ov to 0.0 % and the output high limit
ovk
ovkovk
ovk to 100.0 %.
5) Select the manual mode at the avto
avtoavto
avto prompt.
6) Enable the output at the rvn
rvnrvn
rvn prompt.
7) At the operation cycle, set the MV to 0.0 %.
8) At the output low calibration ov C
ov Cov C
ov C 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
ovkCovkC
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 ITH 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
Err1Err1
Err1
Err6
Err6Err6
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
spxlspxl
spxl and spll
spllspll
spll.
SERIAL COMMUNICATION
The indicator can be supplied with an asynchronous RS-485 digital
communication interface for master-slave connection to a host
computer (master).
The indicator 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 indicator units in a multidrop
network) are accepted but no reply is sent back in this case.
CHARACTERISTICS
RS-485 compatibility with two-wire connection from the host to up to
31 slaves in a multidrop network topology. Up to 247 units can be
addressed by the MODBUS RTU protocol. Maximum network
distance: 4,000 feet. Time of indicator disconnection: Maximum of 2
ms after the last byte.
Te communication signals are electrically isolated from the rest of the
instrument, and can be 1200, 2400, 4800, 9600, 19200, 38400, and
57600 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.
•Protocol: MODBUS (RTU)
RS485 INTERFACE: ELECTRICAL CONNECTION
The RS-485 signals are:
D1 = D: Bidirectional data line
D0 =
D:
Inverted bidirectional data line
C = GND: Ground. Optional connection to improve communication
performance
COMMUNICATION PARAMETERS CONFIGURATION
Two parameters must be configured for serial use:
bavd
bavdbavd
bavd : Communication speed. All equipments with the same speed.
Addr
AddrAddr
Addr : Controller communication address. Each controller must
have an exclusive address.

Controller N2000
NOVUS AUTOMATION 9/9
SPECIFICATIONS
DIMENSIONS:.......................................................48 x 96 x 92 mm (1/16 DIN).
Approximate weight: 150 g
PANEL CUT-OUT:..................................................45 x 93 mm (+0.5 -0.0 mm)
TERMINAL CONNECTION: ..................24 screws accepting 6.3 mm fork lugs
PO ER: ................................................ 100 to 240 Vac/dc (±10 %), 50/60 Hz.
Transient overvoltage: ±2 kV
Optional: ..................................................................... 24 Vac/dc ±10 %
Max. Consumption:........................................................................ 9 VA
ENVIRONMENTAL CONDITIONS:....................................................5 to 50 °C
..........................................Relative humidity (maximum): 80 % up to 30 ºC.
..................................For temperatures above 30 ºC, decrease 3 % per ºC.
Installation category II. Pollution degree 2. Altitude < 2000 m
INPUT.................................Keyboard selection of input type (refer to Table 1)
Internal resolution: ............................................................... 19500 levels
Display resolution: .............................12000 levels (from -1999 to 9999)
Input sample rate:.................................................................5 per second
Accuracy: ..................Thermocouples J, K and T: 0.25 % of span ±1 ºC
............................................Thermocouple N, R, S: 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: 15 Ω (+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 for Pt100.
DIGITAL INPUT (I/O6):................................Dry contact or NPN open collector
ANALOG OUTPUT (I/O5): .......................... 0-20 mA or 4-20 mA, 550 Ω max.
............................................................................................1500 levels, Isolated
.................................................Control output or PV or SP retransmission
CONTROL OUTPUT:............... 2 Relays SPDT (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 for SSR drive (I/O5): 10 V max / 20 mA
SECOND ANALOG INPUT: ...................4-20 mA remote set point (standard).
EMC :........................................... EN 61326-1:1997 and EN 61326-1/A1:1998
SAFETY: ....................................... EN61010-1:1993 and EN61010-1/A2:1995
PROGRAMMABLE P M CYCLE FROM 0.5 SEC. AND 100 SEC.;
START UP 3 SECONDS AFTER PO ER UP.
ORDERING INFORMATION
N2000 - 485 - 24V
A B C
A: Series model: N2000;
B: Digital communication: blank
485 (RS485, Modbus protocol)
C: Voltage rating: blank (100 to 240 Vac)
24V (24 Vac/dc)
ARRANTY
This product is covered by a 12-month warranty provided the purchaser
presents the sales receipt and the following conditions are met:
• Products are covered for one year from the original date of
purchase. Please retain the dated sales receipt as evidence of the
date of purchase. You will need it for any warranty service
• Within this period, warranty against defects in material and
workmanship under normal use is free of charge.
• For repair, send the product and the sales receipt to our address.
Expenses and transportation risks are under the purchaser’s
responsibility.
• This warranty does not cover any damage due to accident,
misuse, abuse, or negligence.