NOVUS Controller N2000S - Manual (Page 3)

Controller N2000S
NOVUS AUTOMATION 3/9
7 7 7 7 – Digital input, Start/Stop control (“RvN RvN RvN RvN”: YES / no).
Closed = outputs enabled
Open = outputs disabled
8 8 8 8 – Invalid selection;
9
9 9 9 – Digital input, holds or allows R&S program progress.
Closed = enables program running;
Opened = holds program (the program resumes normal
operation when the contact is closed again. The
program resumes from the point is was prior to
the hold)
10 10 10 10 – R&S program 1 selection. This option is useful when the user
wants to switch between the main setpoint and a second SP
defined in the ramp and soak program.
Closed = selects program 1;
Open = assumes the main setpoint
11 11 11 11– Configures the I/O5 as an analog 0-20 mA control output.
12
12 12 12– Configures the I/O5 as an analog 4-20 mA control output.
13
13 13 13– Analog 0-20 mA retransmission of PV.
14
14 14 14– Analog 4-20 mA retransmission of PV.
15
15 15 15– Analog 0-20 mA retransmission of SP.
16
16 16 16– Analog 4-20 mA retransmission of SP.
I/O 6 – Digital Input
0 0 0 0 - Disable the alarm;
6 6 6 6 - Digital input, manual/automatic selection:
Closed = manual control;
Open = automatic control
7 7 7 7 – Start/Stop control (“RvN RvN RvN RvN”: YES / no).
Closed = outputs enabled
Open = outputs disabled
8 8 8 8 – Invalid selection;
9
9 9 9 - Holds or allows R&S program progress.
Closed = enables program running;
Opened = holds the program (the program resumes normal
operation when the contact is closed again)
10 10 10 10 – R&S program 1 selection. This option is useful when the user
wants to switch between the main setpoint and a second SP
defined in the ramp and soak program.
Closed = selects program 1;
Open = takes the main setpoint
Note: When a function is selected to operate through digital
input, the controller does not respond to the equivalent function
command given in the frontal keypad.
POTENTIOMETER INPUT
The potentiometer of valve position can be seen in the controller. It
must be 10 k
Ω
and connections must be as Figure 07 shows. The
potentiometer reading does not power the valve position for control
effects, it only informs the operator the valve current position. The
control action happens regardless of the potentiometer.
In order to visualize the potentiometer reading, the “Pot” parameter
must be enabled. When enabled (YES), the potentiometer position is
displayed on the prompt screen that shows the Manipulated Variable
(MV). When the potentiometer visualization is selected, the MV is not
shown anymore, and the percentage value of valve opening is shown
instead. The MV screen is the second prompt of the main cycle.
ALARM CONFIGURATION
The controller has 2 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
7.2 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 off off 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 ierr ierr 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 rs rs rs Can be activated at a specific segment of ramp and
soak program.
Detection
resistance
fail
rfail rfail rfail rfail Detects a heater broken condition
Low Alarm lo lo lo lo
SPAn
PV
High Alarm ki ki ki ki
SPAn
PV
LOW
Differential
difl difl difl difl
SV
PV
SV - SPAn
positive SPAn
SV
PV
SV - SPAn
negative SPAn
HIGH
Differential
difk difk difk difk
SV
PV
SV + SPAn
positive SPAn
SV
PV
SV + SPAn
negative SPAn
Differential dif dif dif dif
SV
PV
SV + SPAn SV - SPAn
positive SPAn
SV
PV
SV - SPAn SV + SPAn
negative SPAn
Table 3 – Alarm functions
SPAn is meant to be the Alarm Setpoints “SPA1”, “SPA2”.
•
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.
•
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
7.2 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.
•
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 values is above the value defined in
the alarm Setpoint.
•
Differential (or Band)
In this function, the parameters “SPA1 SPA1 SPA1 SPA1”, “SPA2 SPA2 SPA2 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.