Novus Controller N120 Manual de usuario descargar pdf (Pagina 6)

NOVUS AUTOMATION 6/14

TUNING LEVEL

Atvn

Auto-tune. Defines the control strategy to be taken -

Off

– Turned off. (no PID tuning)

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.

Pb1

Proportional Band. Value of the term P of the control 1

mode PID, in percentage of the maximum span of the

input type. Select zero for ON/OFF control.

Integral Rate. Value of the term I of the PID algorithm, in

repetitions per minute (Reset).

Displayed only if proportional band ≠ 0.

Derivative Time. Value of the term D of the control mode

PID, in seconds. Adjustable between 0 and 300.0

seconds.

Displayed only if proportional band ≠ 0.

(t1

Cycle Time. Pulse Width Modulation (PWM) period in

seconds to Control 1. Displayed only if proportional band

≠ 0.

Kyt1

Control 1 Hysteresis (in engineering. units): This

parameter is only shown for ON / OFF control (Pb1=0).

Adjustable between 0 and the measurement input type

span.

ACt

Control Action. For Auto Mode only.

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.

For the control output 2, the control action is always

opposite to the one defined for control output 1.

bias

Fuction 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.

O1ll

Output Low Limit. Lower limit for the control 1 output -

Minimum percentage value assumed by the control

output when in automatic mode and in PID.

Typically configured with 0 %. Default value: 0 %

O1kl

Output High Limit. Upper limit for the control 1 output -

Maximum percentage for the control output when in

automatic mode and in PID.

Typically configured with 100 %. Default value: 100 %

Pb2

Proportional Band 2. Value of the P term for control

output 2, in percentage of the maximum span of the input

type.

Select zero, and the hysteresis control is set in the

OLAP

screen.

Kyt2

Control 2 Hysteresis. This parameter is only shown for

ON / OFF control (

Pb2

=0).Adjustable between 0 and the

measurement input type span.

Olap

Overlap. Defines the overlap between the heat and cool

outputs. The overlap is given in engineering units of the

input type used.

When the overlap value is negative, it represents the

value of the dead-band instead.

[t2

Cycle Time. PWM period in seconds. Can only be viewed

if proportional band is other than zero.

O2ll

Output Low Limit: minimum. Percentage value for MV

(Manipulated Variable) when in automatic control and

PID. Default value: 0.0 %

O2kl

Output High Limit: Maximum. Percentage value for MV

when in automatic control and PID. Default value: 100.0

sfst

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).

Lbd.t

Loop break detection time.Time interval for the LBD

function. Defines the maximum interval of time for the PV

to react to a control command. In minutes.

Sp.a1

Sp.a2

Sp.a3

Sp.a4

Alarm Setpoint. Tripping points for alarms 1 and 2. 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.

R&S PROGRAMS LEVEL

Pr.tb

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.

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.

Ptol

Program Tolerance.

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 v

alue 0 (zero) disables the function (the program

progresses regardless of the difference between PV and

SP).

Psp0

Psp9

Program SP’s, 0 to 9: Group of 10 values of SP that define

the Ramp and Soak profile segments.

Pt1

Pt9

Segments durations, 1 to 9: De

fines the time of duration,

in second or minutes, of the segments of the program

being edited.

Pe1

Pe9

Program event.

Alarms of Event, 1 to 9: Parameters that

define which alarms are to be activated during the

execution of a certain program segment. The

alarms

chosen must have its function configured as “

rS.” (See

Table 3)

Psp1

Psp9

Program SP.

Ramp and Soak Set Points: (0 to 9): Set of

10 SV values which define the ramp and soak profile

segments.

Link Programs. Number of the next profile 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.

ALARMS LEVEL

Fva1

Fva2

fva3

fva4

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.

- Inhibits this blocking function.

xya1

xya2

Histeresis of Alarm. Defines the difference between the

value of PV at which the alarm is triggered and the value

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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Novus Controller N120 Manual de usuario Pagina 6

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