Novus Controller N3000 Manuel d'utilisateur télécharger pdf (Page 7)

Controller N3000

NOVUS AUTOMATION 7/11

Act

Action

Control Action:

-Reverse Action usually used for heating.

Dir

-Direct Action usually used for cooling.

bias

Bias function - Allows adding a percentage value

between -100 % and +100 %. to the MV control

output.

The value 0 (zero) disables the function.

Ovll

Output Low

Limit

Minimum percentage value for MV (Manipulated

Variable) when in automatic control and PID. Default

value: 0.0 %

Ovxl

Output High

Limit

Maximum percentage value for MV when in

automatic control and PID. Default value: 100.0%

Sfst

Softstart

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).

Sp.a1

Sp.a2

Sp.a3

Sp.a4

Alarm SP: Value that defines the point of activation

for the programmed alarms with the functions “

” or

“

”.

For the alarms configured with Differential type

functions, this parameter defines deviation (band).

Not used for the other alarm functions.

RAMP AND SOAK PROFILE PROGRAMMING CYCLE

Tbas

Program time

base

Program time base - Defines the time base that will be

used by all Ramp & Soak programs.

Se(

-Time basis in seconds

min

-Time basis in minutes

Pr n

Program

number

Program to be Viewed: Selects the ramp and soak

profile program to be edited/viewed in the following

cycle prompts (7 programs available).

Ptol

Program

Tolerance

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

Psp7

Program SP

Ramp and Soak Set Points: (0 to 7): Set of 8 SV

values which define the ramp and soak profile

segments.

Pt1

Pt7

Program

Time

Ramp and Soak Segments: (1 to 7): Set of 7 time

intervals in minutes for the 7 segments of the ramp

and soak program.

Pe1

Pe7

Program

event

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 “

” setting (Table 3).

Link Program

Link Program: number of the next profile program to be

linked following the current program.

0 - Do not link to any other program.

1 a 7 - Number of the program to be linked to.

ALARM CYCLE

Fva1

Fva2

Fva3

Fva4

Function

Alarm

Functions of Alarms. Defines the functions for the

alarms among the options of the Table 3.

oFF, iErr, rS, Lo, xi, DiFL, DiFx, DiF

bla1

bla2

bla3

bla4

Blocking

Alarm

This function blocks the alarm at power-up when the

units is first energized.

YES - Enables.

NO - Inhibits this blocking function.

xya1

xya2

xya3

xya4

Histeresis of

Alarm

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).

A1t1

A2t1

A3t1

A4t1

Alarm Time

Defines the temporization time t1, for the alarms. In

seconds.

The value 0 (zero) disables the function.

A1t2

A2t2

A3t2

A4t2

Alarm Time

Defines the temporization time t2 for the alarms time

functions. In seconds.

The value 0 (zero) disables the function.

flsK

Display flashes in alarm.

CONFIGURATION CYCLE

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.

fltr

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.

Dppo

Decimal Point

Defines the decimal point position.

VnIt

Unit

Defines the indication unit in Celsius “°

(

“ or

Fahrenheit “°

“

This parameter is presented whenever a temperature

sensor is configured as input.

Offs

Offset

Sensor Offset: Offset value to be added to the PV

reading to compensate sensor error.

Default value: zero.

Spll

Setpoint Low

Limit

Defines the SP lower limit of.

For the linear analog input types available (0-

20 mA,

4-20 mA, 0-50 mV and 0-

5 V), defines the minimum

PV indication range, besides limiting the SP

adjustment.

Defines lower limit for range retransmission PV and

SP.

Spxl

Setpoint High

Limit

Defines the upper limit for adjustment of SP.

For the linear analog input types available (0-

20 mA,

4-20 mA, 0-50 mV and 0-

5 V), defines the maximum

PV indication range, besides limiting the SP

adjustment.

Defines upper limit for range retransmission PV and

SP.

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Novus Controller N3000 Manuel d'utilisateur Page 7

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