Novus Controller N2000S Bedienungsanleitung PDF herunterladen (Seite 3)

Controller N2000S

NOVUS AUTOMATION

3/9

7 – Digital input, Start/Stop control (“RvN

RvNRvN

RvN”: YES / no).

Closed = outputs enabled

Open = outputs disabled

8 – Invalid selection;

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)

1010

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

1111

11– Configures the I/O5 as an analog 0-20 mA control output.

1212

12– Configures the I/O5 as an analog 4-20 mA control output.

1313

13– Analog 0-20 mA retransmission of PV.

1414

14– Analog 4-20 mA retransmission of PV.

1515

15– Analog 0-20 mA retransmission of SP.

1616

16– Analog 4-20 mA retransmission of SP.

I/O 6 – Digital Input

0 - Disable the alarm;

6 - Digital input, manual/automatic selection:

Closed = manual control;

Open = automatic control

7 – Start/Stop control (“RvN

RvNRvN

RvN”: YES / no).

Closed = outputs enabled

Open = outputs disabled

8 – Invalid selection;

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)

1010

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 kΩ 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

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)

rsrs

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

lolo

SPAn

High Alarm

kiki

SPAn

LOW

Differential

difl

difldifl

difl

SPAn

positive SPAn

SPAn

negative SPAn

HIGH

Differential

difk

difkdifk

difk

SV + SPAn

positive SPAn

SV + SPAn

negative SPAn

Differential

dif

difdif

dif

SV + SPAn

SV - SPAn

positive SPAn

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

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.

1 2 3 4 5 6 7 8 9

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