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Program level, Input level, Calibration level – NOVUS Controller N480D User Manual

Page 3: Type of adopted program, Programs of ramp and soak

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N480D Controller

NOVUS AUTOMATION

3/6

PROGRAM LEVEL

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 value 0 (zero) disables the function.

Psp0

Psp9

Program SP

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

define the Ramp and Soak profile segments.

Pt1

Pt9

Program Time

Time intervals of the program segments. It defines

the duration in minutes, of each of the 9 program

segments. Configurable between 0 and 9999

minutes.

Pe1

Pe9

Program

event

Program Segment Alarm (Event Alarm). Parameters

that define the alarm must be activated during the

execution of a certain program segment:

OFF Do not activate alarm in this segment.
A1 Activate alarm 1 when program reaches

this segment.

A2 Activate alarm 2 when program reaches

this segment.

A1A2 Activate alarms 1 and 2 when program

reaches this segment.

The alarms chosen must have its function configured

as “rS”.

rPt.P

Repeat

Program

It determines the number of times the program must

be REPEATED, besides the initial execution.

Configurable between 0 and 9999 times. After the

last execution, all controller outputs are turned off

(RUN = OFF).

INPUT LEVEL

Type

tYPE

INPUT TYPE: Selects the input signal type to be

connected to the process variable input. Refer to

Table 1 for the available options.
This must be the first parameter to be

configured.

Dp.po

Decimal Point

DECIMAL POINT. Defines the decimal point

position.

Vnit

unit

UNIT: Defines the indication unit in Celsius or

Fahrenheit
(

Degrees Celsius (°C);

F

Degrees Fahrenheit (°F);

A(t

ACtion

CONTROL ACTION:
re

Reverse action. Generally used for

heating.

Dir

Direct action. Generally used for

cooling.

Ovt.a
Ovt.b
Ovt.(
Ovt.d

OUTA, OUTB, OUTC and OUTD function:
Off

Output not used

(tr

Output defined as control output

AL1

Output defined as alarm output 1

AL2

Output defined as alarm output 2

(.0.20

Output defined as control output 0-20

mA (only for OUTD)

(.4.20

Output defined as control output 4-20

mA (only for OUTD)

spll

SP Low Limit

SETPOINT LOW LIMIT: Selects minimum

adjustment for parameters relative to the SP (SP,
A1SP

, A2SP).

spKl

SP High Limit

SETPOINT HIGH LIMIT: Selects maximum

adjustment for parameters relative to the SP (SP,
A1SP

, A2Sp).

0ffs

OFFSet

OFFSET FOR PV: Parameter that allows to add a

value to PV to generate an indication displacement.

A

1fv

A2fv

Alarm Function

ALARM FUNCTION 1 AND 2: See Table 4 for

description of functions and code to be

programmed in these screens.

Ai

ky

A2ky

Alarm

HYsteresis

ALARM HYSTERESIS 1 AND 2: Defines the

difference between the measured value when the

alarm is activated and the value that is deactivated.

A1bl
A2bl

Alarm

Blocking

Initial Alarm block:
Yes

Enables initial block

No

Does not enable initial block

Pr.ty

Program Type

Type of program to be adopted by controller:
none

Does not adopt any type of program

rate

Adopts ramp to level function

Pr

Adopts complete Ramp and Level

program.

CALIBRATION LEVEL
All types of input and output are calibrated at the factory. If recalibration

is required, it must be performed by a specialist. If this cycle is

accessed accidentally, pass through all parameters without making

changes to their values.

pass

Password. Input of the Access Password.
This parameter is presented before the protected

cycles. See item Protection of Configuration.

inL(

Input Low Calibration. Enter the value

corresponding to the low scale signal applied to the

analog input.

ink(

Input High Calibration. Enter the value

corresponding to the full scale signal applied to the

analog input.

0vL(

Output Low Calibration. Enter of the value

measured at the analog output.

0vk(

Output High Calibration. Enter of the value

measured at the analog output.

rstr

Restore. Restores the factory calibration for all input,

analog output and remote SP, disregarding

modifications carried out by the user.

(j

Cold Junction. Adjusts the of cold junction

temperature value.

Pas.(

Password. Allows defining a new access password,

always different from zero.

Prot

Protection. Sets up the Level of Protection. See

Table 2.

TYPE OF ADOPTED PROGRAM

Two forms of program execution are available in the controller. The

Program Type (Pr.Ty) parameter allows user to choose between

Ramp to Level (rate) and a complete Ramp and Level program (Pr).

User can also choose to not execute any type of program (none).

PROGRAMS OF RAMP AND SOAK

Available when the Rate option in the Pr.Ty parameter is selected.
The controller allows the process temperature to vary gradually from an

initial value until a specified final value, determining a Ramp-like behavior.

The initial value of the Ramp will always be the process initial

temperature (PV). The final value will always be the value defined in SP.
User determines the increase (or decrease) speed of the ramp in the

“rAtE” parameter, which defines a temperature variation rate in degrees

per minute. In order to disable the Ramp function, program the value 0.0.
When the SP value is reached, the controller starts to control the

process in SP (level) by an interval of time or indefinitely.
The t SP parameter, adjustable between 0 and 9999 minutes,

determines the level duration. At the end of the level, the control is