Novus N322PID Operating Manual

TEMPERATURE CONTROLLER
N322PID
OPERATING MANUAL - V1.7x A
The N322-PID is a 2-output digital electronic controller with PID control algorithm, intended for
heating and cooling applications. The input sensors available are NTC thermistor, Pt100 or
J/K/T type thermocouples. Sensor offset correction is provided. The 2 independent outputs
can be used as control or alarm.
The features of a particular model (input sensor type, sensor range, mains supply, etc) are
identified by the label placed on the controller body.
SPECIFICATIONS
INPUT SENSOR: The input sensor type can be chosen form the 4 options below (specified
when placing the order):
NTC Thermistor, 10 kΩ @ 25 °C; range: –50 to 120 °C (-58 to 248 °F); Accuracy: 1,0 °C
(1,1 °F), with original sensor;
Sensor interchangeability: 1 °C (1.35 °F). This error can be compensated by the offset
parameter in the controller.
Pt100 (α= 385); Range: –50 to 300 °C (-58 to 572 °F); Accuracy: 0,7 °C (1.3 °F);
Type J T/C; Range: 0 to 600 °C (32 to 1112 °F); Accuracy: 3 °C (5.4 °F);
Type K T/C; Range: -50 to 1000 °C (-58 to 1832 °F); Accuracy: 3 °C (5.4 °F);
Type T T/C; Range: -50 to 400 °C (-58 to 752 °F); Accuracy: 3 °C (5.4 °F);
Note: In the controller with NTC input, a 3 m-sensor cable is bundled with the instrument.
The cable can be extended up to 200 m.
WARM-UP: 15 minutes
MEASUREMENT RESOLUTION:
0.1 °C: from –19.9 to 199.9 °C (-3.8 to 391.8 °F) With NTC, Pt100.
1°C: elsewhere
OUTPUT1: Relay: 16 A / 250 Vac, SPDT
OUTPUT2: Logic pulse for SSR drive: 5 V max / 25 mA
POWER SUPPLY: 100~240 Vac ( ± 10 %, 50~60 Hz)
Caution: check the power supply specification before energizing the controller.
DIMENSIONS: Width x Height x Depth: 74 x 32 x 75 mm
Panel cut-out: 70 x 29 mm; Weight: 100 g
ENVIRONMENT: Operating temperature: 0 to 40 °C (32 to 122 °F)
Storage temperature: -20 to 60 °C(-4 to 140 °F)
Relative humidity: 20 to 85 % non condensing
CASE: Polycarbonate UL94 V-2; Protection: Front panel: IP65, Box: IP42
Serial interface isolated from input circuitry.
ELECTRICAL WIRING
Figure 1 below shows the controller connections to sensor, mains and outputs.
Figure 1 – N322PID terminals
It is important to follow the recommendations below:
• Signal wires should be installed in grounded conduits and away from power or contactor
wires.
• The instrument should have its own power supply wires that should not be shared with
electrical motors, coils, contactors, etc.
Man 5001266
• Installing RC filters (47 R and 100 nF, series combination) is strongly recommended at
contactor coils or any other inductors.
• System failure should always be taken into account when designing a control panel to
avoid irreversible damage to equipment or people.
OPERATION
The controller requires the internal parameters to be configured according to the intended use
for the instrument. The parameters are organized in 4 groups or levels:
Level
0
1
2
3
4
Upon power-up, the controller display shows for 1 second its firmware version. This
information is useful when consulting the factory.
Then, the temperature measured by the sensor is shown on the display. This is the parameter
level 0 (temperature measurement level).
To access level 1, press
again, the "SP2 SP2 SP2" parameter is presented. To go back to level 0, press SP2
To access level 2 of paramenters, press
shown. Release the
Power consumption: 5 VA
advance to the next parameter in the level. At the end of the level, the controller returns to the
first level (0). Use the
Notes: 1
2
Suitable wiring: Up to 4,0 mm²
Level 1 – Setpoint Adjustment
In this level only the Setpoint (SP1
names with their respective values. Adjust the desired temperature for each setpoint clicking
on the and
SP1 SP1
SP1 SP1
Set Point 1
SP2 SP2 SP2 SP2
Set Point 2
Function
Temperature measurement
Setpoint Adjustment
Configuration
PID control parameters
Calibration
for 1 second until the "SP1 SP1 SP1 SP1" message shows up. Pressing
for 2 seconds until the "uNT
key to remain in this level. Each new pressing on the
and keys to alter a parameter value.
A parameter configuration is saved when the key is pressed to advance to
the next parameter in the cycle. The configuration is stored in a non-volatile
memory, retaining its value when the controller is de-energized.
If no keyboard activity is detected for over 20 seconds, the controller saves the
current parameter value and returns to the measurement level.
SP1 SP1 and SP2 SP1 SP2) parameters are available, alternating the SP2 SP2
keys.
Temperature adjustment for control OUTPUT 1. SP1 SP1 SP1 SP1 value is limited to the
values programmed in SPL SPL and SPk SPk in the programming level (Parameter
SPL SPL SPk SPk
configuration, level 2).
Temperature adjustment for control OUTPUT 1. SP2 SP2 SP2 value is limited to the SP2
values programmed in SPL SPL SPL and SPk SPL SPk SPk SPk
Level 2 – Configuration - Parameters configuration Level
Contains the configuration parameters to be defined by the user, according to the system's
requirements. Use and
name and respective value.
Unt Unt Temperature Unit - Selects display indication for degrees Celsius or
Unt Unt
Fahrenheit.
0 0 0 0 – Temperature in degrees Celsius
1 1 1 1 – Temperature in degrees Fahrenheit
typ typ typ typ Input Type - Selects the input sensor type to be connected to the
controller. Available only for thermocouple models, allowing selection of
types J, K and T.
0 0 0 0 - Thermocouple type J
1 1 1 1 - Thermocouple type K
2 2 2 2 - Thermocouple type T
ofs ofs ofs ofs Sensor Offset - Offset value to be added to the measured temperature to
compensate sensor error.
spl spl spl spl SP Low Limit - Lower range for SP1
programmed with a lower value than spK
spK spK spK spK SP High Limit - Upper range for SP1
than spl spl spl. spl
ky1 ky1 OUTPUT 1 Hysteresis: defines the differential range between the
ky1 ky1
temperature value at which the OUTPUT 1 is turned on and the value at
which it is turned off. In degrees.
ky2 ky2 OUTPUT 2 Hysteresis: defines the differential range between the
ky2 ky2
temperature value at which the OUTPUT 2 is turned on and the value at
once more. which it is turned off. In degrees.
uNT uNT uNT" message is
Ac1 Ac1 Control action for OUTPUT 1 :
Ac1 Ac1
key will
0 0 0 0 Reverse: For heating applications. Outputs turn on when
temperature is lower than SP.
1 1 1 1 Direct: For cooling applications. Output turns on when temperature is
above SP.
Ac2 Ac2 Ac2 Ac2 Action 2 - Control OUTPUT 2 action or Alarm funtions:
0 0 0 0 Reverse control action (heating).
1 1 1 1
Direct control action (cooling).
2 2 2 2 Low (minimum) temperature alarm.
3 3 3 3 High (maximum) temperature alarm.
4 4 4 4
Alarm for temperature inside the range
5 5 5 5 Alarm for temperature outside the range.
6 6 6 6
Low temperature alarm with initial blocking.
7 7 7 7 High temperature alarm with initial blocking.
8 8 8 8 Inside range alarm with initial blocking.
9 9 9 9
Outside range alarm with initial blocking.
The section Working with the Controller describes how these functions
work.
(nt (nt Control - Associates Setpoints and Outputs.
(nt (nt
0 0 0 0 Setpoint 1 is assigned to OUTPUT1 and Setpoint 2 to OUTPUT2
(factory setting).
1 1 1 1 Setpoint 1 is assigned to OUTPUT2 where as Setpoint 2 is directed
to OUTPUT1.
keys to set the value. The display alternates the parameter
SP1 and SP2 SP1 SP1 SP2 SP2 SP2. SPL must be SPL SPL SPL
spK spK spK.
SP1 SP1 and SP2 SP1 SP2 SP2. SPx SP2 SPx must be greater SPx SPx