Manual N480i
5.1
ALARM INITIAL BLOCKING
MICROPROCESSOR BASED TEMPERATURE
INDICATOR
Alarm blocking at power-up inhibits the relay alarm to trip when the unit is first energized. The alarm will only
trip after the process variable reaches a new alarm situation.
N 4 8 0 I - V3.1x
Error alarm shows sensor defects or not properly connected.
OPERATING MANUAL
6
PROBLEMS WITH THE CONTROLLER
Connection and configuration errors state for most of the problems in using the controller. A final revision of
parameters will save time and further losses.
1
Error messages are displayed to help the user to identify possible problems.
The symbols below are used on the equipment and throughout this document to draw the user’s attention to
important operational and safety information.
SAFETY SUMMARY
: Process temperature is below the selected sensor range.
: Process temperature is above the selected sensor range
Erro:
6.2
Controller or sensor error. Example: Broken thermocouple or Pt100. Pt100 badly
connected, short-circuited or high cable resistance.
ELECTRONIC SERIAL NUMBER VISUALIZATION
To read the 8-digit serial number go to the Operation Level and press the
key for 3 seconds. The display
will show the first 4 digits. Then keep the
key pressed for 3 seconds and the display will show the last 4
digits.
CAUTION or WARNING:
CAUTION or WARNING:
Read complete instructions prior to installation
and operation of the unit.
Electrical Shock Hazard
All safety related instructions that appear in the manual must be observed to ensure personal safety and to
prevent damage to either the instrument or the system. If the instrument is used in a manner not specified by
the manufacturer, the protection provided by the equipment may be impaired.
SERIAL NUMBER
2
LAST 4 DIGITS
FIRST 4 DIGITS
SPECIFICATIONS
•
•
Dimensions: 48 x 48 x 110 mm (1/16 DIN). Panel cut-out: 45,5 x 45,5 mm. Weight: 150 g (max.);
Power: 100 to 240 Vac / dc (± 10 %), 50 / 60 Hz or 24 Vdc / ac (± 10 %); Max. Consumption: 9 VA;
•
Pt100: α=385. 3-wire connection. Excitation current: 0.170 mA;
When powering the unit the display will show the software version for a few seconds.
•
Accuracy: 0.2 % of full scale for Pt100 and 0,25 % of full scale ±1 °C for T/C
7
•
Thermocouple input impedance: 10 MΩ
•
A/D converter resolution: 15000 steps
•
•
Sampling rate: 10 measurements per second
Environmental conditions: 5 to 50 °C; Relative humidity (maximum): 80 % up to 30 ºC. For
temperatures above 30 ºC, decrease 3 % per ºC. Installation category II. Pllution degree 2. Altitude <
2000 m.
PRODUCT IDENTIFICATION
The label attached to the controller case identifies the model and the optional present in the product, as
described below:
MODEL: N480I – A – B, where:
A: Outputs:
RP OUT A = Relay and OUT B = Relay
RF OUT A = Relay and OUT B = 24Vdc auxiliary supply
B. Voltage rating:
8
blank (100-240 Vac/dc) or 24V (24 Vac/dc)
TECHNICAL ASSISTANCE
If you encounter a problem with your controller, review the configuration with regard to inputs, outputs,
alarms, etc. If the problem persists, contact your supplier or Novus at info@novus.com.br.
•
Front panel: Polycarbonate UL94 V-2; Back panel:ABS + PC UL94 V-0
•
EMC: EN 61326-1:1997 and EN 61326-1/A1:1998
•
SAFETY: EN 61010-1: 1993 e EN 61010-1/A2: 1995
INPUT TYPE
CODE
RANGE
Termocouple J
0
-50 to 760 °C (-58 to 1400 °F)
Termocouple K
1
-90 to 1370 °C (-130 to 2498 °F)
Termocouple T
2
-100 to 400 °C (-148 to 752 °F)
Termocouple E
3
-30 to 720 °C (-22 to 1328 °F)
Termocouple N
4
-90 to 1300 °C (-130 to 2372 °F)
Termocouple R
5
0 to 1760 °C (32 to 3200 °F)
Termocouple S
6
0 to 1760 °C (32 to 3200 °F)
Pt100 (Resolution 0.1 °C)
7
-199.9 to 530.0 °C (-199.9 to 986.0 °F)
Pt100 (Resolution 1 °C)
8
-200 to 530 °C (-328 to 986 °F)
4 to 20 mA
9
Linearized J. Maximum range -110 to 760 °C
4 to 20 mA
10
Linearized K. Maximum range -150 to 1370 °C
4 to 20 mA
11
Linearized T. Maximum range -160 to 400 °C
4 to 20 mA
12
Linearized E. Maximum range -90 to 720 °C
4 to 20 mA
13
Linearized N. Maximum range -150 to 1300 °C
4 to 20 mA
14
Linearized R. Maximum range 0 to 1760 °C
4 to 20 mA
15
Linearized S. Maximum range 0 to 1760 °C
4 to 20 mA
16
Linearized Pt100. Max. range -199.9 to 530.0 °C
4 to 20 mA
17
Linearized Pt100. Max. range -200 to 530 °C
0 to 50 mV
18
Linear. Programmable range from -1999 to 9999
4 to 20 mA
19
Linear. Programmable range from -1999 to 9999
0 to 10 V
20
Linear. Programmable range from -1999 to 9999
Table 1 – Types of sensors accepted by the indicator
3
INSTALLATION
The indicator should be installed in a panel cut out as specified. First remove the mounting clamp and insert
the controller into the panel cut out. Place the unit into the panel cut-out and slide the mounting clamp from
the rear to a firm grip at the panel.
The internal circuitry can be fully removed from the housing without disconnecting any wiring. By using the
thumb just press the tab in the lower part of the front panel, grab firmly the front panel and pull out the
circuitry from the housing.
3.3
POWER
Mains power is connected to terminals 1 and 2. Check the upper side of the housing for proper power indication.
Figure 1 shows the electrical terminals of the indicator.
The upper display (red) shows the parameter name while the lower display (green) shows its value. The
and
allow changing the parameter value.
keys
A2ky
The indicator will resume and show the operation level after all prompts have been accessed or whenever
the keyboard is not used for more than 20 seconds.
Alarm 2
HYsteresis
Any changed parameter is only saved into non-volatile memory after moving to the next parameter or when
no key is touched for 20 seconds.
Prot
4.2
4.6
PROGRAM SECURITY
To avoid tampering, parameter “Prot
Prot”
Prot and a hardware jumper can be used to disable access to
programming parameters.
With the jumper in the OFF position, all program levels are unprotected. The “Prot
Prot”
Prot parameter can only be
changed with the jumper in the OFF position.
With the jumper in the ON position or removed, the protection level is defined by the current value of the
“Prot
Prot”
Prot parameter:
0
1
2
3
No protection. All parameters can be accessed;
No access to the calibration level;
No access to calibration and configuration levels;
No access to calibration, configuration and tuning and alarms levels;
INPUT WIRING
OFF
ATENTION
Inl(
Input Low Calibration
InK(
Input High Calibration
Pt100
3-WIRE
T/C
4.4
VOLTAGE
4-20mA
V
mA
After power up the indicator displays the measured valued proportional to the input
signal.
ALARMS LEVEL
A1SP
5
SENSOR OFFSET CALIBRATION. Sets the temperature sensor low calibration
(offset). The display shows only the corrected temperature and not the offset added.
A signal simulator should be used to inject a low value signal to properly adjust the
offset.
INPUT HIGH CALIBRATION. Sets the sensor input circuit gain or high calibration.
A signal simulator should be used to inject a high value signal to properly adjust the
offset.
COLD JUNCTION OFFSET CALIBRATION: Sets the cold junction offset
calibration. A good thermometer or a temperature simulator should be used to
properly adjust this parameter.
ALARM FUNCTIONS
Low and high alarms are used to signal minimum and maximum temperature values as programmed in the
“A1SP
A1SP”
A2SP”
A1SP and “A2SP
A2SP prompts.
Differential alarms are used to indicate deviations from the desired set point (SP
SP)
SP temperature.
These deviations are programmed at the “A1SP
A1SP”
A2SP”
A1SP and “A2SP
A2SP prompts.
Table 2 shows each alarm function operation with their respective code. Alarm 1 is used as an example.
SETPOINT for Alarm 1: Triping point for alarm 1
TYPE
CODE
SETPOINT for Alarm 2: Triping point for alarm 2
LOW
0
2 For 2 wire Pt100, short circuit terminals 11 and 12. Cable length is not compensated.
3 Thermocouples must be connected with the proper extension wire.
3.5 USING THE PROVIDED AUXILIARY DC VOLTAGE SUPPLY FOR POWERING 2-WIRE
FIELD TRANSMITTERS
SPA1
AL.RE
REFERENCE VALUE FOR DIFFERENTIAL ALARM: a value in respect to which
the differential, differential low and differential high alarms will be set.
Alarm ON
HIGH
SPA1
Alarm
Reference
4.5
A1SP
A1SP
CONFIGURATION LEVEL
TYPE
Transmissor
2 fios
entrada 4-20mA
Dp.pO
INPUT TYPE: Selects the input sensor type to be connected to the indicator (refer
to Table 1). This is the first parameter to be set.
Negative
LOW
differential
CONFIGURATION AND OPERATION
Prior to first operation the controller should be fully configured. The user must set basic parameters as
temperature type (“TYPE
TYPE”),
SP“),
A1SP”
A2SP”),
TYPE the desired control set point (“SP
SP the alarms set points (“A1SP
A1SP and “A2SP
A2SP etc.
4.1
PARAMETERS FLOW CHART
The programming parameters are organized in 4 different sets or levels:
Mensuration Level / Alarms Level / Configuration Level / Calibration Level
At power up the controller displays a prompt at the Operation Level and remains in this level while under
normal operation.
The other levels are only accessed when a change of parameters is necessary. To reach these other
parameters the user must keep the
key pressed for about three seconds. After this time the controller
will show the first parameter of the next level. By keeping the
key pressed for another 3 seconds the
next level will be accessed.
Release the
key when the desired level is reached. Press once the
key to go to the next prompt in
the same level. Use the
key to go back to the previous displayed parameter.
in.ll
Input Low Limit
1n.kl
Input High Limit
0ffs
Alarm 1
HYsteresis
TEMPERATURE
SP
SP + SPA1
Alarm ON
TEMPERATURE
TEMPERATURE UNIT: Selects display indication for degrees Celsius or Farenheit.
0 – degrees Celsius ( °(
( ); 1 - degrees Farenheit ( °f
f );
differential
SP + SPA1
Alarm
ON
A1SP
A1SP
INPUT LOW LIMIT: Available for input types from 9 to 20. Defines the lowest value
to be displayed when the input signal is at its lower value. For input types from 0 to
8 it defines the lowest alarm set point value.
INPUT HIGH LIMIT: Available for input types from 9 to 20. Defines the highest
value to be displayed when the input signal is at its upper value. For input types
from 0 to 8 it defines the highest alarm set point value.
FUNCTION OF ALARM 2: Refer to Table 2 for function description and respective
codes to set at this prompt.
ALARM 1 HYSTERESIS: Defines the difference between the point at which the
alarm is activated and the point at which it is desactivated.
SP
A1SP
A1SP
TEMPERATURE
SP + SPA1
Alarm ON
TEMPERATURE
differential or
deviation
Negative
A1SP
A1SP
Positive
Input sensor
error
Alarm Functions
With alarm
inhibition at
power-up
SP + SPA1
SP
SP - SPA1
SP
SP + SPA1
4
SENSOR OFFSET: Offset value to be added to the PV to compensate sensor
error. Default value: zero
FUNCTION OF ALARM 1: Refer to Table 2 for function description and respective
codes to set at this prompt.
SP
3
Positive
Alarm 2 Function
Aiky
SP
Alarm ON
A1SP
A1SP
Negative
HIGH
Alarm
ON
SP - SPA1
Alarm
ON
TEMPERATURE
5
Alarm is ON whenever:
• Temperature is below selected range;
• Temperature is above selected range;
• Termocouple or Pt100 is broken;
• Pt100 is shorted, badly connected or wire impedance is too high;
6
Low limit alarm disabled at power-up
7
High limit alarm disabled at power-up
8
9
Differential low limit alarm disabled at power-up
Alarm 1 Function
A2fv
SP + SPA1
A1SP
A1SP
DECIMAL POINT: Available only for input types 18, 19 or 20. Defines the number
of digits to be shown after the decimal point. Programmable from 0 to 3.
OFFSET
A1fv
TEMPERATURE
2
unit
Figure 3 – 4-20 mA input wiring of a field transmitter powered by the N480i 24 V Auxiliary Power Supply
Alarm
ON
Positive
Decimal Point
Position
Vnit
TEMPERATURE
1
tYPE
4
TEMPERATURE
Alarm ON
Ligado
SP Alarm 2
1 For proper wire lenght compensation, all Pt100 wires should have the same electrical
resistance.
fonte de tensão
ACTION
SP Alarm 1
A2SP
Figure 2 – Input Wiring
Figure 3 – Protection Enabled
OPERATION LEVEL
8888
Cold Junction Low
Calibration
ON
Figure 4 – Protection Disabled
4.3
Notes:
CALIBRATION LEVEL
(j L
The different input signals are connected according Figure 2.
PARAMETER PROTECTION: Refer to Table 2 for description of functions for this
prompt.
These parameters are used to calibrate the temperature measurement and should only be dealt with
by experienced and well equipped personnel.
Figure 1 - Electrical connections
3.4
ALARM 2 HYSTERESIS: Defines the difference between the point at which the
alarm is activated and the point at which it is desactivated.
10
Differential high limit alarm disabled at power-up
Differential alarm disabled at power-up
Table 2 - Alarm functions and their identification codes
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising