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Controller N1200
UNIVERSAL CONTROLLER - INSTRUCTIONS MANUAL - V1.1x
SAFETY ALERTS
CONFIGURATION / FEATURES
The symbols below are used on the equipment and throughout this
document to draw the user’s attention to important operational and
safety information.
INPUT TYPE SELECTION
Select the input type (in parameter “tYPE
tYPE”)
tYPE from Table 1 below.
INTRODUCTION
TYPE
J
K
T
N
R
S
B
E
Pt100
0-20 mA
4-20 mA
0–50 mV
0-5 Vdc
0-10 Vdc
The N1200 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.
4-20 mA
NON
LINEAR
CAUTION:
Read the manual thoroughly
before installing and operating the
equipment.
CAUTION OR DANGER:
Electrical Shock Hazard
All safety related instructions that appear in the manual must be
observed to ensure personal safety and to prevent damage to either
the instrument or the system. If the instrument is used in a manner
not specified by the manufacturer, the protection provided by the
equipment may be impaired.
The instrument setup is carried out through its frontal keypad without
any hardware change. Thus, the configuration of the input and output
types, the alarms and other functions, are all accessed and
programmed via frontal keyboard.
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). The N1200 main characteristics are:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Multi-sensor universal input;
Protection for open sensor in any condition;
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;
Two alarm outputs in the basic version, 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;
20 setpoint profile programs with 9 segments each, with the
ability to be linked together for a total of 180 segments;
Password for parameters protection;
Universal power supply.
NOVUS AUTOMATION
CODE
Tc j
Tc k
Tc t
Tc n
Tc r
Tc s
Tc b
Tc e
Pt
L0.20
L4.20
L0.50
L0.5
L0.10
ln j
Ln k
ln t
ln n
ln r
ln s
ln b
ln E
Ln.Pt
RANGE OF MEASUREMENT
Range: -110 to 950 ºC (-166 to 1742 ºF)
Range: -150 to 1370 ºC (-238 to 2498 ºF)
Range: -160 to 400 ºC (-256 to 752 ºF)
Range: -270 to 1300 ºC (-454 to 2372 ºF)
Range: -50 to 1760 ºC (-58 to 3200 ºF)
Range: -50 to 1760 ºC (-58 to 3200 ºF)
Range: 400 to 1800 ºC (752 to 3272 ºF)
Range:-90 to 730 ºC (-130 to 1346 ºF)
Range: -200 to 850 ºC (-328 to 1562 ºF)
Linear Signals
Programmable indication from -1999 to 9999.
Non Linear Analog Signals
Indication range dependes on the selected sensor
Table 1 - Input types
Note: All input types are factory.
CONFIGURATION OF OUTPUTS, ALARMS AND DIGITAL INPUTS
The controller input and output channels (I / O) can assume multiple
functions: control output, digital input, digital output, alarm output,
retransmission of PV and SP. These channels are identified as I / O
1, I / O 2, I / O 3, I / O 4 and I / O 5.
The basic controller model comes loaded with the following features:
I / O 1- output to Relay SPST-NA;
I / O 2- output to Relay SPST-NA;
I / O 5- current output, digital output, digital input;
Optionally, other features can be added, as shown under the item
“Identification” in this manual:
- 3R:
I / O3 with output to SPDT relay;
- DIO: I / O3 and I / O4 as digital input and output channels;
- HBD: Heater break detect;
- 485:
Serial Communication;
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.
1 / 13
Controller N1200
FUNCTION OF I/O
Without Function
Output of Alarm 1
Output of Alarm 2
Output of Alarm 3
Output of Alarm 4
LBD - Loop break detection
Control Output (Relay or Digital Pulse)
Automatic / Manual mode selection
Run / Stop mode selection
Remote SP selection
Setpoint profile program HOLD (Freezes
program execution)
Setpoint Profile Program 1 selection
0 to 20mA control output selection
4 to 20mA control output selection
Retransmission of PV in 0 to 20mA
Retransmission of PV in 4 to 20mA
Retransmission of Sp in 0 to 20mA
Retransmission of SP in 4 to 20mA
CODE
TYPE OF I/O
OFF
A1
A2
A3
A4
Lbd
CTRL
mAN
RVN
RSP
KPRG
Output
Output
Output
Output
Output
Output
Output
Digital Input
Digital Input
Digital Input
Digital Input
PR 1
(.0.20
(.4.20
P.0.20
P.4.20
S.0.20
S.4.20
Digital Input
Analogical Output
Analogical Output
Analogical Output
Analogical Output
Analogical Output
Analogical Output
Table 2 - Types of functions for the I/O channels
During the configuration of the I/O channels, only the valid options for
each channel will be shown on the display. These functions are
described below:
• off - Without function
The I/O channel programmed with code off will not be used by the
controller. Although without function, this channel is available through
the serial communication as digital I/O (command 5 MODBUS).
•
a1,
a1 a2,
a2 a3,
a3 a4 – Alarm Outputs
The selected channel can be used as output to Alarms 1 to 4.
Defines that the programmed I/O channel acts as alarm outputs.
Available for all the I/O channels.
• 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.
•
(trL – PWM Control Output
Defines the I/O channel to be used as the PWM control output (relay
or digital pulse). Available for all the I/O channels. The digital pulse is
available on I/O5 (standard) or on I/O3 and I/O4 (when the DIO
optional is installed). Check the specifications of each channel.
•
mAn - Digital Input with Auto/Manual function
Defines the I/O channel as Digital Input with the function of switching
the control mode between Automatic and Manual. Available on I/O5
(standard) or on I/O3 and I/O4 (when the DIO optional is installed).
•
Closed = Manual control;
Open = Automatic control
rvn - Digital Input with RUN function
Defines channel as Digital Input with the function of
enabling/disabling the control and alarm outputs (“RvN
RvN”:
RvN YES / no).
Available for I/O5 or I/O3 and I/O4, when installed.
Closed = outputs enabled
Open = control and alarms output shut off.
•
rsp - Digital Input with Remote SP function
Defines channel as Digital Input with the function of selecting the
remote SP as the control setpoint. Available for I/O5 or I/O3 and I/O4,
when available.
Closed = remote SP
Open = uses main SP
•
kprg
kprg - Digital Input with Hold Program function
Defines channel as Digital Input with the function of commanding the
execution of the selected setpoint profile program. Available for I/O5
or I/O3 and I/O4, when available.
Closed = Enables execution of the program
Open = Interrupts (freezes) execution of the program
NOVUS AUTOMATION
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 with function to Execute Program 1
Defines the IO channel as Digital Input with the function of
commanding the execution of the setpoing profile program 1.
Available for I/O5 or I/O3 and I/O4, when available.
Useful function for switching between the main setpoint and a
secondary one defined by the program 1.
Closed = selects program 1;
Open = selects main setpoint
•
(.0.20 –0-20 mA Control Output
Available for I/O 5 only, defines the channel as a 0-20 mA control
output.
• (.4.20 - 4-20 mA Control Output
Defines the channel as a 4-20 mA control output.
•
P.0.20 – 0-20 mA PV retransmission
Available for I/O 5 only, configures the channel to retransmit the
values of PV in 0-20 mA.
• P.4.20 - 4-20 mA PV retransmission
Available for I/O 5 only, configures the channel to retransmit the
values of PV in 4-20 mA.
•
s.0.20 – 0-20 mA SP (Setpoint) retransmission
Available for I/O 5 only, configures the channel to retransmit the
values of SP in 0-20 mA.
•
s.4.20 – 4-20 mA SP (Setpoint) retransmission
Available for I/O 5 only, configures the channel to retransmit the
values of SP in 0-20 mA.
CONFIGURATION OF ALARMS
The controller has 4 independent alarms. These alarms can be
configured to operate with nine different functions, as shown in Table 3.
•
off – Alarms turned off.
off
• ierr – Open Sensor alarms - (Loop Break)
The open sensor alarm acts whenever the input sensor is broken or
badly connected.
•
rs –Program Event Alarm
Configures the alarm to act in (a) specific segment(s) of the programs
of ramps and baselines to be created by the user.
• Rfai1 – Burnt-out Resistance Alarm - (Heat Break)
Signals that the heating element has broken up. This alarm function
requires the accessory Current transformer CT1. Details for use of
the option “burnt-out resistance” are found in the specific
documentation that accompanies the product whenever this option is
requested.
•
lo – Alarm of Absolute Minimum Value
Triggers when the value of measured PV is below the value defined
for alarm Setpoint.
•
ki – alarm of Absolute Maximum Value
Triggers when the value of measured PV is above the value defined
for alarm Setpoint.
•
dif – Alarm of Differential Value
In this function the parameters “SPA1
SPA1”,
SPA2”,”
SPA4”
SPA1 “SPA2
SPA2 SPA3”
SPA3 and “SPA4
SPA4
represent the Deviation of PV in relation to the SP.
Using the Alarm 1 as example: for Positive SPA1 values, the Differential
alarm triggers when the value of PV is out of the range defined for:
(SP – SPA1) to (SP + SPA1)
2 / 13
Controller N1200
For a negative SPA1 value, the Differential alarm triggers when the
value of PV is within the range defined above:
•
difl – Alarm of Minimum Differential Value
It triggers when the value of PV is below the defined point by:
(SP – SPA1)
INITIAL BLOCKING OF ALARM
The initial blocking option inhibits the alarm from being recognized if
an alarm condition is present when the controller is first energized (or
after a transition from run YES NO). The alarm will be enabled only
after the occurrence of a non alarm condition followed by a new
occurrence for the alarm.
Using the Alarm 1 as example.
• difk – Alarm of Maximum Differential Value
Triggers when the value of PV is above the defined point by:
(SP + SPA1)
The initial blocking is useful, for instance, when one of the alarms is
configured as a minimum value alarm, causing the activation of the
alarm soon upon the process start-up, an occurrence that may be
undesirable.
Using the Alarm 1 as example.
SCREEN
TYPE
Off
Ierr
Inoperative
ACTUATION
Activated when the input signal of PV is
interrupted, out of the range limits or Pt100
in short-circuit.
(input Error)
Rs
The initial blocking is disabled for the sensor break alarm function.
Output is not used as alarm.
Open sensor
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.
Event (ramp and Activated in a specific segment of program.
Soak)
rfail Resist. burnt out Signals a failure in the heating element.
EXTRACTION OF THE SQUARE ROOT
With this feature enabled the controller uses for display and control a
value that corresponds to the square root of the applied input signal.
Available only for the inputs belonging to the group of linear analogic
signals: 0-20 mA, 4-20 mA, 0-50 mV, 0-5 V and 0-10 V.
(resistance fail)
Lo
Minimum value
(Low)
Ki
Maximum value
(High)
Dif
Differential
(diFerential)
Difk
The analog output, when not used for control purposes, is available
for retransmitting the PV and SP values in 0-20 or 4-20 mA. This
analog output is electrically isolated from other inputs and outputs.
SPAn
PV
SPAn
PV
PV
SV - SPAn
alarme
SV
SV + SPAn
Positive SPAn
Difl
ANALOG RETRANSMISSION OF PV AND SP
PV
Minimum
Differential
(diFerential
Low)
SV + SPAn
alarme
SV
SV - SPAn
Negative SPAn
PV
PV
SV - SPAn
Maximum
differential
(diFerential
High)
SV
SV
SV - SPAn
SV + SPAn
SV + SPAn
Positive SPAn
SOFT-START
PV
PV
SV
To obtain a voltage output, the user must install 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.
Negative SPAn
Positive SPAn
SV
Negative SPAn
Table 3 – Alarm Functions
Where SPAn refers to Setpoints of Alarm “SPA1
SPA1”,
SPA2”,
SPA1 “SPA2
SPA2
“SPA3
SPA3”
SPA4”.
SPA3 and “SPA4
SPA4
ALARM TIMER MODES
The controller alarms can be configured to perform 3 timer modes:
•
One pulse with defined duration;
•
Delayed activation;
•
Repetitive pulses;
T1
Normal
Operation
0
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 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).
T2
0
ACTION
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.
sp 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 9 and 10, as shown in Figure 4c.
Alarm
Output
Alarm Event
Activation for a
1 to 6500 s
defined time
Activation with
delay
Intermittent
Activation
The soft-start feature avoids abrupt variations in the power delivered
to the load regardless of the system power demand. .
REMOTE SETPOINT
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
A1t1,
t1 A1t2
A1t2,
t2 A2t1
A2t1,
t1 A2t2
A2t2,
t2 A3t1
A3t1,
t1 A3t2
A3t2,
t2
A4t1
A4t1 and A4t2
A4t2.
t2
OPERATION
The analog output signal is scaleable, with the output range defined by
the values programmed in the parameters “rtLL
rtLL”
rtkL”.
rtLL and “rtkL
rtkL
0
0
Alarm
Output
CONTROL MODE
T1
The controller can operate in two different manners: Automatic mode
or Manual mode. In automatic mode the controller defines the amount
of power to be applied on the process, based on defined parameters
(SP, PID, etc.).
Alarm Event
1 to 6500 s
Alarm
Output
T2
Alarm Event
1 to 6500 s 1 to 6500 s
Alarm
T1
Output
alarme
Alarm Event
T2
T1
In the manual mode the user himself defines this amount of power.
The parameter “(trl” defines the control mode to be adopted.
Table 4 – Temporization Functions for the Alarms
NOVUS AUTOMATION
3 / 13
Controller N1200
PID AUTOMATIC MODE
ELECTRICAL CONNECTIONS
For the Automatic mode, there are two different strategies of control:
PID control and ON/OFF control.
The controller's internal circuits can be removed without undoing the
connections on the back panel.
PID control has its action based on a control algorithm that takes into
account the deviation of PV with respect to SP, the rate of change of
PV and the steady state error.
The controller complete set of features is drawn in Figure 1. The
features loaded in a particular unit are shown on its label
On the other hand, the ON/OFF control (obtained when Pb=0)
operates with 0% or 100% of power, when PV deviates from SP.
The determination of the PID parameters (Pb, Ir and Dt) is described
in the item DETERMINATION OF PID PARAMETERS of this manual.
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,
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.
Figure 1 - Connections of the back panel
Power Supply Connections
The LDB is useful in system supervision and troubleshooting, allowing
early detection of problems in the actuator, power source or load.
HBD - HEATER BREAK DETECTION
Available in the products identified with the suffix HBD. The HBD
function is described in Appendix 1 of this manual.
SAFE OUTPUT VALUE WITH SENSOR FAILURE
This function defines an output value (user defined) to be assigned to
the control output in the event of a sensor failure.
When the input sensor is identified as broken, the controller switches
the control mode to MANUAL while forcing MV to assume the user
configured value in the 1E.ov parameter.
This function requires that one of the alarms be configured as 1Err
and the 1E.ov parameter (control output percentage) programmed
with a value other then 0 (zero).
Once this function is triggered, the controller remains in SAFE mode
(MANUAL control output) even after the sensor failure appears to be
fixed. The operator intervention is required for switching back to
AUTO mode.
Observe the power
requirement for the
unit. of required power
supply
Figure 2 – Power supply connections
Input Connections
•
Thermocouple (T/C) and 0-50 mV
The Figure 3a indicates the wiring for the thermocouple and 0-50mV
signals. If the thermocouple wires needs 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 11 and 12.
INSTALLATION / CONNECTIONS
The controller must be fastened on a panel, following the sequence
of steps described below:
• Prepare a panel cut-out of 45.5 x 45.5 mm ;;
• Remove the mounting clamps from the controller;
• Insert the controller into the panel cut-out tl;
• Slide the mounting clamp from the rear to a firm grip at the panel.
RECOMMENDATIONS FOR THE INSTALLATION
•
•
•
•
•
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
All electronic instruments must be powered by a clean mains
supply, proper for instrumentation.
It is strongly recommended to apply RC'S FILTERS (noise
suppressor) to contactor coils, solenoids, etc.
In any application it is essential to consider what can happen when
any part of the system fails. The controller features by themselves
can not assure total protection.
NOVUS AUTOMATION
Pt100
T/C, 0-50mV
Figure 3a - Connection of T/C, 050mV
•
Figure 3b - Connection of three wire
Pt100-3
4-20 mA:
The connections for current signals 4-20 mA must be carried-out
according to Figure 4a.
4-20mA
Figure 4a - Current connection
4-20 mA
•
Figure 4b - Connection for 5V and 10V
5 V and 10 V
Refer to Figure 4b for connecting voltage signals.
4 / 13
Controller N1200
Remote Setpoint
Feature available in the controller's terminals 9 and 10. When the
Remote SP input signal is 0-20 mA or 4-20 mA, an external
100Ω
Ω shunt resistor of must be connected to terminals 9 and 10 as
indicated in Figure 4c.
RUN indicator: Indicates that the controller is active, with the control
output and alarms enabled.
OUT indicator: For relay or pulse control output; it reflects the actual
state of the output. If an analog output is assigned for control, the
OUT indicator lights continuously.
A1, A2, A3 and A4 indicators: signalize the occurrence of alarm
situation.
P P Key (Program key):
parameters.
used to walk through the menu
Back Key: used to retrocede parameters.
Figure 4c - Connection for remote SP
Digital Input Connections
Figures 5a and 5b show switches driving I/O 3 and I/O 5. The same
scheme applies to I/O 4
Increment key and
values of the parameters.
- Decrement key: allow altering the
When the controller is turned on, its firmware version is delayed for 3
seconds, after which the controller starts normal operation. The
values of PV and SP are displayed and the outputs are enabled
In order to operate appropriately, the controller needs a configuration
that is the definition of each one of the several parameters presented by
the controller. The user must be aware of the importance of each
parameter and for each one determine a valid condition or a valid value.
Note: Since many parameters depend on the input type chosen,
it is recommended that the parameter TYPE be the first one to be
configured.
Figure 5a – I/ O3 as
Digital Input
Figure 5b – I/O5 as
Digital Input
The parameters are grouped in levels according to their functionality
and operation easiness. The 7 levels of parameters are:
Connection of Alarms and Outputs
The I/O channels, when configured as outputs, must have their load
limit capacities observed, according to the product specifications.
LEVEL
ACCESS
1 - Operation
Free access
2 - Tuning
3- R&S Programs
4- Alarms
Reserved access
5- Scale
6- I/Os
Figure 6a – I/ O3 or I/O4 with output
pulse for SSR.
Figure 6b – I/O5 with output pulse
for SSR.
7- Calibration
Table 5 – Cycles of Parameters
I/O3, I/O4 and I/O5 can also be configured as digital outputs (I/O3 and
I/O4 provide a 5 Vdc output signal whereas I/O5 a 12 Vdc signal). An
example of usage is shown in Figure 6a for the I/O3 and in Figure 6b
for the I/O5. I/O5 is electrically isolated from the sensor input
OPERATION
The controller's front panel, with its parts, can be seen in the Figure 7:
The parameters in the operation level have easy access through the
key P . The access deeper levels use the combination of keys:
(BACK) and
P
(PROG) pressed simultaneously
Press P 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
are pressed after changing
values are saved when the keys P or
a parameter value. The value of SP is saved upon pressing the P
key or every 25 seconds.
DESCRIPTION OF THE PARAMETERS
Figure 7 - Identification of the parts referring to the front panel
OPERATION CYCLE
Display of PV/Programming: Displays the current value of PV
(Process Variable). When in configuration mode, it shows the
parameters names.
Display of SP/Parameters: Displays the value of SP (Setpoint).
When in configuration mode, it shows the parameters values.
COM indicator: Flashes to indicate communication activity in the
RS485 interface.
TUNE indicator: Stays ON while the controller is in tuning process.
MAN indicator: Signals that the controller is in the manual control
mode.
NOVUS AUTOMATION
To access the operation level parameters, press
parameter is displays.
PV Indication
(Red Screen)
SP Indication
(Green Screen)
P
until the desired
IPV and SP indication – The upper display shows
the current value of PV. The lower display shows
the control SP value.
(trl
Control Mode:
Control
auto - Means automatic control mode.
Man – Means manual control mode.
(bumpless transfer between automatic and manual
control modes).
5 / 13
Controller N1200
PV Indication
(Red Screen)
MV Indication
(Green Screen)
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 by the
and
keys. When
in auto mode the MV value can only be viewed.
Lbd.t
Loop
break
detection time.
bias
Enable
Program
Execution of Program - Selects the ramp and
soak profile program to be executed.
0 - does not execute program
1 to 20 number of the program to be executed
With enabled outputs (RUN = YES), the program
starts right after the program is selected.
ovll
Output Low
Limit
ovkl
p.seg
Output High
Limit
t.seg
Screen for indication only. When a ramp and soak
program is in execution, it shows the remaining
time to the end of the current segment, in units of
time configured in the Pr.tb parameter.
sfst
CYCLE OF TUNING
Atvn
Auto-tune
pb
Proportional
Band
Softstart
Enables control outputs and alarms.
YES - Outputs enables.
NO - Outputs not enabled.
Sp.a1
Sp.a2
Sp.a3
Sp.a4
Defines the control strategy to be taken:
off – Turned off. (no PID tuning)
Fast – Fast automatic tuning.
Full –More accurate automatic tuning.
self – Precise + auto - adaptative tuning
rslf –Forces one new precise automatic
precise + auto - adaptative tuning.
tght - Forces one new precise automatic + auto
- adaptative tuning when Run = YES or controller
is turned on.
PROPORTIONAL BAND - Value of the term P of
the control mode PID, in percentage of the
maximum span of the input type. Adjust of between
0 and 500.0 %. Select zero for ON/OFF control.
ir
INTEGRAL RATE - Value of the term I of the PID
Integral Rate algorithm, in repetitions per minute (Reset).
Adjustable between 0 and 99.99.
dt
Displayed only if proportional band ≠ 0.
(t
Cycle Time
Pulse Width Modulation (PWM) period in seconds.
Adjustable between 0.5 and 100.0 seconds.
Displayed only if proportional band ≠ 0.
kyst
Hysteresis
ACt
Action
CONTROL HYSTERESIS (in engineering. units):
This parameter is only shown for ON / OFF control
(Pb=0). Adjustable between 0 and the
measurement input type span.
CONTROL ACTION: For Auto Mode only.
re Control with reverse Action. Appropriate for
heating. Turns control output on when PV is
below SP.
dir Control with direct Action. Appropriate for
cooling. Turns control output on when PV
is above SP.
NOVUS AUTOMATION
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).
ALARM SETPOINT: Tripping point for alarm 1, 2, 3
and 4. Value that defines the point of activation for
the programmed alarms with the functions “Lo
Lo”
Lo or
“ki
ki”.
ki
For the alarms configured with Differential type
functions, this parameter defines deviation (band).
CYCLE OF PROGRAMS
Pr.tb
Program time
base
Pr n
Program
number
Ptol
Program
Tolerance
DERIVATIVE TIME - Value of the term D of the
0 and 300.0 seconds.
Upper limit for the control output - Maximum
percentage for the control output when in automatic
mode and in PID. Typically configured with 100 %.
Default value: 100 %
Not used for the other alarm functions.
Displayed only if proportional band ≠ 0.
Derivative Time control mode PID, in seconds. Adjustable between
Lower limit for the control output - Minimum
percentage value assumed by the control output
when in automatic mode and in PID.
Typically configured with 0 %. Default value: 0 %
Screen for indication only. When a ramp and soak
program is active, this parameter shows the number
of the segment under execution, from 1 to 9.
rvn
BIAS: Offset for MV (manual reset). Range: -100 %
to +100 %.
Allows adding a percentage value between -100%
and +100 %. to the MV control output
The value 0 (zero) disables the function.
To distinguish the MV display from the SP display,
the MV is shown flashing intermittently.
E pr
Time interval for the LBD function. Defines the
maximum interval of time for the PV to react to a
control command. In minutes
Psp0
Psp9
Pt1
Pt9
Defines the time base that will be used by all Ramp
& Soak programs.
Se(
Min
- Time basis in seconds;
- Time basis in minutes;
Selects the ramp and soak profile program to be
edited/viewed. The sequence of parameters that
follows refer to this selected program. Total of 20
programs possible.
Maximum admitted deviation of PV with respect to SP.
If exceeded, the program execution is suspended (the
internal timer freezes) until the deviation be returns
back within the defined tolerance.
The value 0 (zero) disables the function (the
program progresses regardless of the difference
between PV and SP).
Program SP’s, 0 to 9: Group of 10 values of SP that
define the Ramp and Soak profile segments.
Segments durations, 1 to 9: Defines the time of
duration, in second or minutes, of the segments of
the program being edited.
Alarms of Event, 1 to 9: Parameters that define
which alarms are to be activated during the
Program event execution of a certain program segment. The alarms
chosen must have its function configured as “rS
rS.”
rS
(See Table 3)
Pe1
Pe9
Lp
Link Programs: Number of the next profile program
Link Program to be linked following the current program. Profiles
can be linked together to produce larger programs of
up to 180 segments.
0 – do not link to any other program.
6 / 13
Controller N1200
CYCLE OF ALARMS:
Fva1
Fva2
Fva3
Fva4
bla1
bla2
bla3
bla4
e.rsp
FUNCTIONS OF ALARMS 1 to 4. Defines the
functions for the alarms among the options of the
Table 3.
BLOCK ALARM 1 TO 4: This function blocks the
alarms when the controller is energized.
YES - enables initial blocking
NO - inhibits initial blocking
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
xya2
xya3
xya4
ALARM HYSTERESIS: Defines the difference
between the value of PV at which the alarm is
triggered and the value at which it is turned off (in
engineering units).
A1t1
A2t1
A3t1
A4t1
Defines the temporization time t1, in seconds, for
the alarms. Defines the temporization time t1, in
seconds, for the alarms time functions. The value 0
(zero) disables the function.
Alarm Time t1 Refer to Table 4 for configuring this parameter
Enable Remote
SP
A1t2
A2t2
A3t2
A4t2
Alarm Time t2. Defines the temporization time t2,
in seconds, for the alarms time functions. The
value 0 (zero) disables the function. Refer to Table
4 for configuring this parameter
flsh
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.
Flash
CYCLE OF SCALE
Type
Type
fltr
Filter
rsp
Remote SP
type
0-20
4-20
0-5
0-10
current of 0-20 mA
current of 4-20 mA
voltage of 0-5 V
voltage of 0-10 V
Parameter displayed when remote SP is enabled.
rsll
Remote SP
Low Limit
REMOTE SETPOINT LOW LIMIT: used in
conjunction with the rSxL, scales the remote SP
input defining the initial value in the remote SP
indication range
Parameter displayed when remote SP is enabled.
rskl
Remote SP
High Limit
Spll
Setpoint Low
Limit
REMOTE SETPOINT HIGH LIMIT: defines the full
scale indication of the Remote Setpoint
Parameter displayed when remote SP is enabled.
Defines the SP lower limit of.
- Linear inputs: Sets the lower range for SP and
PV indication.
- T/C and Pt100 inputs: sets the lower range for
SP only.
Spxl
Setpoint High
Limit
Defines the upper limit for adjustment of SP.
- Linear inputs: Sets the upper range for SP and
PV indication.
- T/C and Pt100 inputs: sets the upper range for
SP only.
1eov
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.
rtll
In association with the rtxl parameter, it defines
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.
This parameter is displayed only if the analog
retransmission is selected in the I/O 5 parameter
(I/O level).
Unit. Temperature indication in ºC or ºF:
root
Square Root Function. Applies the quadratic
function on the input signal, within the limits
Square Root
programmed in “SPLl
SPLl”
spkL.”
SPLl and “spkL
spkL
YES
no
Offset
Defines the signal type for the remote SP.
Retransmission the analog retransmission scale for PV or SP. The
rtll represents the. minimum scale value for the
Low Limit
Selects the decimal point position to be viewed in
Decimal Point both PV and SP.
0ffs
Enables the Function
Does not enable the Function
INPUT TYPE: Selects the input signal type to be
connected to the process variable input. Refer to
Table 1 for the available options.
Dppo
vnI t
YES
no
This parameter is not displayed when the remote
SP selection is defined by a Digital Input.
timed functions. The value 0 (zero) disables the
function.
Refer to Table 4 for configuring this parameter.
Enables remote SP.
Enables the Function
Does not enable the Function
analog output
Defines the full scale value for the analog
retransmission of PV or SP.
Retransmission
This parameter is displayed only when the analog
High Limit
retransmission is selected in the I/O 5 parameter
(I/O level).
rtkl
bavd
Baud Rate
prty
Parity
The indication assumes the lower limit value when
the input signal is below 1 % of programmed span.
Addr
Parameter available for lineal inputs only.
Address
Digital communication Baud Rate selection, in
kbps: 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6 and 115.2
Parity of the serial communication.
none Without parity
Euen
Euen Even parity
0dd Odd parity
SLAVE ADDRESS SELECTION: Identifies the
controller in the network. The possible address
numbers are from 1 to 247.
SENSOR OFFSET: Offset value to be added to the
PV reading to compensate sensor error.
Default value: zero.
NOVUS AUTOMATION
7 / 13
Controller N1200
CYCLE OF I/OS (INPUTS AND OUTPUTS)
See section: MAINTENANCE / Input Calibration
Remote SP Low Enter the value corresponding to the low scale signal
Calibration applied to the remote SP input.
rsL(
1
Function of the channel I/O 1: Selection of the
function used in the channel I/O 1, according to the
Table 2.
Io
2
Function of the channel I/O 2: Selection of the
function used in the channel I/O 2, according to the
Table 2.
Io
3
Function of the channel I/O 3: Selection of the
function used in the channel I/O 3, according to the
Table 2.
Output Low
Calibration
4
Function of the channel I/O 4: Selection of the
function used in the channel I/O 4, according to the
Table 2.
Output High
Calibration
5
Function of the channel I/O 5: Selection of the
function used in the channel I/O 5, according to the
Table 2.
Io
Io
Io
CALIBRATION CYCLE
All of the input and output types are calibrated in the factory. If a
recalibration is required, this should be carried out by a
experienced personnel. If this cycle is accidentally accessed, pass
through all the parameters without pressing the
or
keys
pass
Input of the Access Password.
Password
This parameter is presented before the protected
cycles. See item Protection of Configuration.
inL(
See section MAINTENANCE / Input Calibration.
Enter the value corresponding to the low scale signal
applied to the analog input.
Input Low
Calibration
ink(
Input High
Calibration
See section MAINTENANCE / Input Calibration.
Enter the value corresponding to the full scale signal
applied to the analog input.
See section: MAINTENANCE / Input Calibration.
Remote SP Enter the value corresponding to the full scale signal
High Calibration applied to the remote SP input.
rsk(
0vL(
0vk(
See section MAINTENANCE / Analog output
Calibration. Enter the analog value as measured at
the analog ouput.
See section MAINTENANCE / Analog output
Calibration. Enter the analog value as measured at
the analog output.
(j
ktyp
Adjusts the of cold junction temperature value.
Pas.(
Allows defining a new access password, always
different from zero.
Prot
Freq
Sets up the Level of Protection. See Table 6.
rstr
Restores the factory calibration for all inputs and
outputs, disregarding modifications carried out by the
user.
Parameter that informs the controller about the
hardware optionals installed. It should not be altered
Hardware Type
by the user, except when an accessory is introduced
or removed.
0 – Basic model. Without optional items
1 – 485
2 – 3R
3 – 3R + 485
4 – DIO
5 – DIO + 485
8 – HBD
9 – HDB + 485
Restore
Mains frequency. This parameter is important for
proper noise filtering.
CONFIGURATION CYCLE I/O CYCLE
CALIBRATION
CYCLE
OPERATION CYCLE
TUNING CYCLE
PROGRAMMING CYCLE
ALARM CYCLE
PV and SP
atvn
Tbas
fva1 - fva4
type
io1
Pass
avto
pb
pr n
bla1 - bla4
fltr
io2
Inl[
PV and MV
hyst
Ptol
kya1 - kya4
dppo
io3
Ink[
pr n
ir
psp0 – psp9
a1t1
vnit
Io4
Rsl[
rvn
dt
pt1 – pt9
a1t2
offs
Io5
Rsk[
(t
pe1 – pe9
a2t1
spll
0vl[
a(t
Lp
a2t2
spkl
0vk[
bias
rsll
[j
Lbd.t
rskl
Ktyp
Ovll
bavd
Pas.[
ovkl
addr
Prot
Sfst
Freq
Spa1 – spa4
rstr
Table 6 – All the Controller's Parameters
NOVUS AUTOMATION
8 / 13
EXPRESS CYCLE – FAST CONFIGURATION
Access Password:
The Express Cycle provides the operator with fast and direct access
to the controller's main parameters, allowing a convenient initial
configuration for the instrument. After going through this sequence of
selected parameters, the controller will be ready for operation. Have
in mind that this cycle provides a simple configuration, although
enough for starting up a system. Further configuration will be
necessary for accessing all the controller features. The parameters
in this cycle are shown below.
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.
EXPRESS CYCLE
TypE
* dppo
* Vnit
* Spll
* Spkl
atvn
a(t
fva1
Sp.a1
Fva2
Sp.a2
io1
io2
Io5
* RSP
* Rsll
* Rskl
* RTll
* RTkl
* (t
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.
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(
PAS().
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.
PROGRAMS OF RAMP AND SOAK
This feature allows the creation of Ramp and Soak Setpoint Profiles
(Programs). Up to 20 different profiles with 9 segments each can
be programmed. Longer profiles of up to 180 segments can be
created by linking 2 or more profiles together.
The figure below displays a profile model:
* Some parameters are context driven and may not be presented
depending on the configuration of other parameters.
In order to access this cycle, press the
simultaneously:
and
keys
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
PROt),
PROt in the Calibration level,
determines the protection strategy, limiting the access to particular
levels, as shown by the table below.
Protection
level
1
2
3
4
5
7
8
Once a profile is defined and selected for execution (parameter EPr
in the operating level), the controller starts to generate the SP profile
automatically in accordance with the elaborated program.
To execute a profile with fewer segments just program 0 (zero) for the
time intervals that follow the last segment to be executed.
Protected cycles
Only the Calibration level is protected.
I/Os and Calibration levels.
Tuning, I/Os and Calibration levels.
Alarm, Tuning, I/Os and Calibration levels.
Programs, Alarm, Tuning, I/Os and Calibration
levels.
Tuning, Programs, Alarm, Input, I/Os and
Calibration levels.
Operation (except SP), Tuning, Programs, Alarm,
input, I/Os and Calibration levels.
Operation (except SP), Tuning, Programs, Alarm,
Input, I/Os and Calibration levels.
6
Figure 8 - Example of a Ramp and Roak.
SV
SP1
SP2
SP3
SP0
T1
T2
T3
T4=0
Time
Figure 9 - Program example with few segments
The program tolerance defines the maximum deviation between PV
and SP for the execution of the profile. If this deviation is exceeded,
the program will be halted until the deviation falls to within the
tolerance band.
Programming 0 (zero) in the “Ptol
Ptol”
Ptol parameter disables the program
tolerance and the profile execution will continue regardless of the PV
value (time priority as opposed to SP priority).
Table 7 – Levels of Protection for the Configuration
NOVUS AUTOMATION
9 / 13
Controller N1200
LINK OF PROGRAMS
It is possible to create a more complex program, with up to 180
segments, joining the 20 programs. This way, at the end of a program
execution the controller immediately starts to run the next one, as
indicated in the “LP
LP".
LP
To force the controller to 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
Program 2
Program 1
SP3
SP1
SP5 / SP0
SP4
SP3
SP1 SP2
SP2
Figure 12 - Example of auto-adaptative tuning
SP4
SP0
T1
T2
T3
T4
T5
T1
T2
T3
T4
Tim e
Figure 10 - Example of interlinked programs
The operator may select, through the ATUN parameter, the desired
tuning type among the following options:
•
OFF: The controller does not carry through automatic tuning or
auto-adaptative tuning. The PID parameters will not be
automatically determined nor optimized by the controller.
•
FAST: The controller will accomplish the process of automatic
tuning one single time, returning to the OFF mode after
finishing. The tuning in this mode is completed in less time, but
not as precise as in the FULL mode.
•
FULL: The same as the FAST mode, but the tuning is more
precise and slower, resulting in better performance of the P.I.D.
control.
•
SELF: The performance of the process is monitored and the
auto-adaptative tuning is automatically initiated by the
controller whenever the performance becomes poorer.
EVENT ALARM
The Event Alarm function associates the alarms to specific segments
of a program. The information of which alarms are to be activated or
deactivated is given in parameters “ PE1“
and
PE1 to “ PE9.
PE9 Press the
keys until the desired alarm numbers are displayed.
The Event Alarm requires that the Alarm function be configured as
“rS
rS “.
Notes:
1. If PtoL is different than zero, the controller will wait for the PV to
reach the first program set point SP0 in order to start the program
execution. Otherwise, it will start promptly.
2. Should any power failure occur, the controller resumes the
program execution at the beginning of the segment that was
interrupted.
After a tuning cycle, the controller starts collecting data from the
process for determining the performance benchmark that will
allow evaluate the need for future tunings. This phase is
proportional to the process response time and is signaled by the
flashing TUNE indication on the display. It is recommended not
to turn the controller off neither change the SP during this
learning period.
DETERMINATION OF PID PARAMETERS
The determination (or tuning) of the PID control parameters in the
controller can be carried out in an automatic way and auto-adaptative
mode. The automatic tuning is always initiated under request of the
operator, while the auto-adaptive tuning is initiated by the controller
itself whenever the control performance becomes poor.
Automatic tuning: In the beginning of the automatic tuning the
controller has the same behavior of an ON/OFF controller, applying
minimum and maximum performance to the process. Along the tuning
process the controller's performance is refined until its conclusion,
already under optimized PID control. It begins immediately after the
selection of the options FAST, FULL, RSLF or TGHT, defined by the
operator in the parameter ATUN.
Auto-adaptive tuning: Is initiated by the controller whenever the
control performance is worse than the one found after the previous
tuning. In order to activate the performance supervision and autoadaptative tuning, the parameter ATUN must be adjusted for SELF,
RSLF or TGHT. The controller's behavior during the auto-adaptative
tuning will depend on the worsening of the present performance. If
the maladjustment is small, the tuning is practically imperceptible for
the user. If the maladjustment is big, the auto-adaptive tuning is
similar to the method of automatic tuning, applying minimum and
maximum performance to the process in ON/OFF control.
•
rSLF: Accomplishes the automatic tuning and returns into the
SELF mode. Typically used to force an immediate automatic
tuning of a controller that was operating in the SELF mode,
returning to this mode at the end.
•
TGHT: Similar to the SELF mode, but in addition to the autoadaptative tuning it also executes the automatic tuning
whenever the controller is set in RUN=YES or when the
controller is turned on.
Whenever the parameter ATUN is altered by the operator into a value
different from OFF, an automatic tuning is immediately initiated by the
controller (if the controller is not in RUN=YES, the tuning will begin
when it passes into this condition). The accomplishment of this
automatic tuning is essential for the correct operation of the autoadaptative tuning.
The methods of automatic tuning and auto-adaptative tuning are
appropriate for most of the industrial processes. However, there may
be processes or even specific situations where the methods are not
capable to determine the controller's parameters in a satisfactory
way, resulting in undesired oscillations or even taking the process to
extreme conditions. The oscillations themselves imposed by the
tuning methods may be intolerable for certain processes. These
possible undesirable effects must be considered before beginning the
controller's use, and preventive measures must be adopted in order
to assure the integrity of the process and users.
The “TUNE” signaling device will stay on during the tuning process.
In the case of PWM or pulse output, the quality of tuning will also
depend on the cycle time adjusted previously by the user.
Figure 11 – Example of auto tuning
NOVUS AUTOMATION
10 / 13
Controller N1200
If the tuning does not result in a satisfactory control, refer to Table 7
for guidelines on how to correct the behavior of the process.
PARAMETER
CALIBRATION OF THE ANALOGICAL OUTPUT
•
Configure I/O 5 for the current output to be calibrated, be it
control or retransmission.
•
In the screen “Ctrl
Ctrl”,
Ctrl program manual mode (man).
•
Connect a current meter at the analog output.
VERIFIED PROBLEM
SOLUTION
Slow answer
Decrease
Great oscillation
Increase
•
Enter the calibration cycle with the correct password.
Slow answer
Increase
•
Select the screen “ovLC
ovLC”.
and
for the
ovLC Press the keys
controller to recognize the calibration process of the current
output.
•
Read the current indicated on the current meter and adjust the
parameter “ovLC
ovLC”
ovLC to indicate this current value (use the keys
and )
Select the screen “ovxC”. Press the keys
and
for the
controller to recognize the calibration process of the current
output.
Proportional Band
Rate of Integration
Great oscillation
Decrease
Slow answer or instability
Decrease
Great oscillation
Increase
Derivative Time
Table 9 - Guidance for manual adjustment of the PID parameters
•
MAINTENANCE
•
Read the current indicated on the current meter and adjust the
parameter “ovkC” to indicate this current value
Connection errors and inadequate programming are the most
common errors found during the controller operation. A final revision
may avoid loss of time and damages.
•
The key P or
calibration.
The controller displays some messages to help the user identify
problems.
SERIAL COMMUNICATION
PROBLEMS WITH THE CONTROLLER
MESSAGE
DESCRIPTION OF THE PROBLEM
----
Open input. No sensor or signal.
Err1
Connection and/or configuration errors. Check
the wiring and the configuration.
Err6
Other error messages may indicate hardware problems requiring
maintenance service. When contacting the manufacturer, inform the
instrument serial number, obtained by pressing the key
for more
than 3 seconds.
in order to leave the screen confirm the
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 indicator 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.
b) Configure the lower and upper limits of indication for the
maximum span of the selected input type.
•
c) At the input terminals inject a signal corresponding to a known
indication value a little above the lower display limit.
Selectable speed; 8 data bits; 1 stop bit; selectable parity (no
parity, pair or odd);
•
Time at the beginning of response transmission: maximum 100
ms after receiving the command.
CALIBRATION OF THE INPUT
All inputs are factory calibrated and recalibration should only be done
by qualified personnel. If you are not familiar with these procedures
do not attempt to calibrate this instrument.
The calibration steps are:
a) Configure the type of input to be calibrated.
and
adjust the
d) Access the parameter “inLC
inLC”.
inLC With the keys
display reading such as to match the applied signal. Then press the
P key.
The RS-485 signals are:
D1 D D + B
Bi-directional data line.
Terminal 16
e) Inject a signal that corresponds to a value a little lower than the
upper limit of indication.
D0 D: D - A
Bi-directional inverted data line.
Terminal 17
f) Access the parameter “inLC
inLC”.
and
adjust
inLC With the keys
the display reading such as to match the applied signal. Then
press the P key.
Optional connection that improves the
performance of the communication.
Terminal 18
GND
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 N1200.
C
CONFIGURATION OF PARAMETERS FOR SERIAL COMMUNICATION
Two parameters must be configured for using the serial type:
bavd: Communication speed.
prty: Parity of the communication.
addr: Communication address for the controller.
NOVUS AUTOMATION
11 / 13
Controller N1200
REDUCED REGISTERS TABLE
FOR SERIAL COMMUNICATION
Communication Protocol
DIMENSIONS:...................................... 48 x 48 x 110 mm (1 / 16 DIN)
............................................................ Approximate Weight: 150 g
CUTOUT IN THE PANEL: .................. 45.5 x 45.5 mm (+0.5 -0.0 mm)
The MOSBUS RTU slave is implemented. All configurable
parameters can be accessed for reading or writing through the
communication port. Broadcast commands are supported as well
(address 0).
The available Modbus commands are:
03 - Read Holding Register
05 - Force Single Coil
SPECIFICATIONS
06 - Preset Single Register
16 - Preset Multiple Register
Holding Registers Table
Follows a description of the usual communication registers. For full
documentation download the Registers Table for Serial
Communication in the N1200 section of our web site –
www.novusautomation.com.
All registers are 16 bit signed integers.
AddressParameter
Register Description
0000 Active SP Read: Active control SP (main SP, from ramp
and soak or from remote SP).
Write: to main SP.
Range: from spll to spkl.
spkl
0001
PV
Read: Process Variable.
Write: Not allowed.
Range: Minimum value is the one configured
in spll and the maximum value is the one
configured in spkl.
spkl Decimal point position
depends on dppo value.
In case of temperature reading, the value
read is always multiplied by 10,
independently of dppo value.
0002
MV
Read: Output Power in automatic or manual
mode.
Write: Not allowed. See address 28.
Range: 0 to 1000 (0.0 to 100.0 %).
POWER SUPPLY..................... 100 a 240 Vac/dc (±10 %), 50 / 60 Hz
Optionally:.......................................................... 24 Vac/dc ±10 %
Maximum consumption:........................................................ 9 VA
ENVIRONMENTAL CONDITIONS:
Operation Temperature: ............................................... 5 to 50 °C
Relative Humidity: ................................................80% max. 30 ºC
For temperatures above 30 ºC, reduce 3% for each ºC
Internal Use; Category of installation II, Degree of pollution 2;
altitude < 2000 m
INPUT............. T/C, Pt100, voltage and current (according to Table 1)
Internal Resolution: .................................. 32767 levels (15 bits)
Resolution of Display: .....12000 levels (from - 1999 up to 9999)
Rate of input reading: .................................up to 55 per second
Precision: .. Thermocouples J, K, T, E: 0.25% of the span ±1 ºC
.................... Thermocouples N, R, S, B: 0.25% of the span ±3 ºC
................................................................. Pt100: 0.2% of the span
............................... 4-20 mA, 0-50 mV, 0-5 Vdc: 0.2% of the 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)
Measurement of Pt100: ................Three wire type, (α=0.00385)
with compensation for cable length, excitation current of 0.170
mA.
All input and output types are factory-calibrated. Thermocouples
according to standard NBR 12771 / 99, RTD’s NBR 13773 / 97;
ANALOGICAL OUTPUT (I/O5): .....0-20 mA or 4-20 mA, 550Ω max.
31000 levels, insulated, for control or retransmission of PV and SP
CONTROL OUTPUT:
2 Relays SPST-NA (I/O1 and I/O2): 1.5 A / 240 Vac, general use
.......................... 1 Relay SPDT (I/O3): 3 A / 250 Vac, general use
.......................... Voltage pulse for SSR (I/O5): 10 V max. / 20 mA
............. Voltage pulse for SSR (I/O3 and I/O4): 5 V max. / 20 mA
INPUT OF REMOTE SP: ....................................... Current of 4-20mA
This characteristic requests an external resistor of 100 R, connected
to the terminals 9 and 10 at the controller's back panel.
ELECTROMAGNETIC COMPATIBILITY:............... EN 61326-1:1997
and EN 61326-1 / A1:1998
SAFETY: .........................EN61010-1:1993 and EN61010-1 / A2:1995
SPECIFIC CONNECTIONS FOR TYPE FORK TERMINALS OF 6.3 MM;
FRONT PANEL: IP65, POLYCARBONATE - UL94 V-2; CASE: IP30,
ABS+PC UL94 V-0;
PROGRAMMABLE CYCLE OF PWM 0.5, UP TO 100 SECONDS;
STARTS UP OPERATION AFTER 3 SECONDS CONNECTED TO THE
POWER SUPPLY;
NOVUS AUTOMATION
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Controller N1200
IDENTIFICATION
N1200 A
3R B
485 C
24V
D
A: Model of Controller.
N1200;
B: Optional of I/O:
Nothing shown
below);
3R
DIO
HBD
(basic version, without the optional items
(version with SPDT Relay available in I/O3);
(version with I/O3 and I/O4 available);
(version with Burnt-Out Resistance detection);
C: Digital Communication:
Nothing shown (basic version, without serial communication);
485
(version with serial RS485, Modbus protocol)
D: Electric Power Supply:
Nothing shown (basic version, power from 100 to 240 Vac);
24V
(version with power of 24 Vac/dc);
WARRANTY
The manufacturer assures the owner of his equipment, identified
through the purchase invoice, a warranty of one (01) year under the
following terms:
•
The warranty period will begin on the issue date of the invoice.
•
Within the warranty period the labor and the components applied
in repairs of defects occurred under normal use conditions will be
free of charge.
•
For possible repairs, please send the equipment for repair,
together with the invoice for shipping purpose, to the address of
our factory.
•
Transport expenses and risks will run for account of the owner.
•
Repairs of defects caused by mechanical impacts or exposure of
the equipment to conditions inappropriate for the use, will be
charged even within the warranty period.
NOVUS AUTOMATION
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