Configuration protection, Maintenance – NOVUS N1040i Indicator User Manual
Page 4
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.