Configuration protection, Maintenance – NOVUS N1040i Indicator User Manual

Page 4

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N1040i Indicator

NOVUS AUTOMATION

4/6

0ffs

Offset

Parameter that allows the user to make corrections in

the value of PV indicated.

inll

Input Low

Limit

It defines the lower value of the indication range when

the input types of 0-20 mA, 4-20 mA, 0-50 mV, 0-5 V

and 0-10 V are used.

inxl

input High

Limit

It defines the upper value of the indication range when

the input types of 0-20 mA, 4-20 mA, 0-50 mV, 0-5 V

and 0-10 V are used.

Retr

Retransmission

It allows the definition of the mode of retransmission

of PV.

P020

Determines retransmission in 0-20 mA.

P420

Determines retransmission in 4-20 mA.

Parameter shown when there is retransmission of PV

available on the indicator.

Rtll

Retransmission

Low Limit

It defines the lower limit of the retransmission range of

PV. Parameter shown there is retransmission of PV

available on the indicator.

Rtkl

Retransmission

High Limit

It defines the upper limit of the retransmission range

of PV. Parameter shown there is retransmission of PV

available on the indicator.

bavd

Baud Rate

Baud Rate of the serial communication. In kbps.
1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6 and 115.2

prty

Parity

Parity of the serial communication.

none

Without parity

Even

Even parity

0dd

Odd parity

Addr

Address

Communication Address. A number that identifies the

indicator in the serial communication network,

between 1 and 247.

CALIBRATION CYCLE
All types of input are calibrated in the factory. In case a

recalibration is required; it shall be carried out by a specialized

professional. In case this cycle is accidentally accessed, do not

perform alteration in its parameters. The factory calibration can

be restored in the parameter rstr.

pass

Password. Entering the Access password. This

parameter is presented before the protected cycles.

See item Protection of Configuration.

(alib

Calibration. Enables the possibility for calibration of

the indicator. When the calibration is not enabled, the

related parameters are hidden.

inL(

Input Low Calibration. Indication of the low scale

calibration signal applied to the input.

ink(

Input High Calibration. Indication of the full scale

calibration signal applied to the input.

ovL(

Output Low Calibration. Enter the analog value as

measured at the analog output.

ovk(

Input High Calibration. Enter the analog value as

measured at the analog output.

rstr

Restore. It restores the factory calibrations of the

input, disregarding any modifications carried out by the

user.

(j

Cold Junction. Temperature of the indicator cold

junction.

Pas.(

Password Change. It allows the definition of a new

access password, always different from zero.

Prot

Protection. Sets up the Level of Protection. See Table

03.

Freq

Frequency. Frequency of the local electrical network.

CONFIGURATION PROTECTION

The indicator allows the protection of the configuration performed by

the user, not allowing improper modifications. The parameter

Protection (PROt), in the Calibration level, determines the

protection strategy to be adopted, limiting the access to the levels,

according to the table below.

Protection Level

Protected Levels

1

Only the Calibration level is protected.

2

Input and Calibration levels are protected.

3

Alarms, Input and Calibration levels are

protected.

Table 03 – Levels of Protection of the Configuration

ACCESS PASSWORD
The protected levels, when accessed, request the user to provide the

Access Password for granting permission to change the

configuration of the parameters on these levels.
The prompt PASS precedes the parameters on the protected levels.

If no password is entered, the parameters of the protected levels can

only be visualized.
The Access Password is defined by the user in the parameter

Password Change (PAS.(), present in the Calibration Level. The

factory default for the password code is 1111.
PROTECTION OF THE ACCESS PASSWORD
The protection system built into the controller blocks for 10 minutes

the access to protected parameters after 5 consecutive frustrated

attempts of guessing the correct password.
MASTER PASSWORD
The Master Password is intended for allowing the user to define a

new password in the event of it being forgotten. The Master

Password doesn’t grant access to all parameters, only to the

Password Change parameter (PAS(). After defining the new

password, the protected parameters may be accessed (and

modified) using this new password.
The master password is made up by the last three digits of the serial

number of the controller added to the number 9000.
As an example, for the equipment with serial number 07154321, the

master password is 9 3 2 1.
The indicator serial number can be obtained by pressing

for 5

seconds.

MAINTENANCE

PROBLEMS WITH THE INDICATOR
Connection errors and inadequate programming are the most

common problems en ountered during the indicator operation. A final

revision can avoid loss of time and damages.
The indicator displays some messages to help the user identify the

problems.

MESSAGE

DESCRIPTION OF THE PROBLEM

----

Open input. Without sensor or signal.

Err1

Err6

Connection and/ or configuration problems. Check

the wiring and the configuration.

Other error messages may indicate hardware problems requiring

maintenance service. When contacting the manufacturer, inform the

instrument serial number, obtained by pressing the key

for more

than 3 seconds.



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