NOVUS N1020 - Manual (Page 4)

N1020 Temperature Controller
NOVUS AUTOMATION 4/8
Keeping the P key pressed, at every 2 seconds the controller jumps
to the next level of parameters, showing the first parameter of each
level:
PV >> atvn >> fva1 >> type >> pass >> PV …
To enter a particular level, simply release the P key when the first
parameter in that level is displayed.
To walk through the parameters in a level, press the P key with short
strokes.
The display alternates the presentation of the parameter prompt and
its value. The parameter value is displayed with a light blinking to
differentiate it from the parameter prompt.
Depending on the level of parameter protection adopted, the
parameter PASS precedes the first parameter in the level where the
protection becomes active. See section CONFIGURATION
PROTECTION.
At the end of this manual, a table with the complete sequence of
levels and parameters is presented.
DESCRIPTION OF THE PARAMETERS
OPERATION LEVEL
PV PV indication
Timer Timer remaining time. Only shown when the Timer
function is in use. (
T1me  0) (HH:MM).
SP
Control SP adjustment.
T1me
Sets the Timer, 00:00 to 99:59 (HH:MM).
Rate RATE OF PV RISE: from the current PV to the SP value.
In degrees/minute.
rvn Enables control outputs and alarms.
YES - Outputs enabled.
NO - Outputs disabled.
f.key -“F” key assumes control over the RUN
command.
TUNING LEVEL
Atvn
Auto-tune
Defines the control strategy to be taken:
off – Turned off. (no PID tuning)
Fast – Fast automatic tuning.
Full – More accurate automatic tuning.
self – Precise + auto - adaptative tuning
rslf – Forces one new precise automatic precise +
auto - adaptative tuning.
T9ht - Forces one new precise automatic + auto -
adaptative tuning when Run = YES or
controller is turned on.
Refer to the “DETERMINING PID PARAMETERS”
section for further details on tuning strategies.
pb
Proportional
Band
PROPORTIONAL BAND - Value of the term P of the
control mode PID, in percentage of the maximum span of
the input type. Adjust of between 0 and 500.0 %.
Select zero for ON/OFF control.
ir
Integral Rate
INTEGRAL RATE - Value of the term I of the PID
algorithm, in repetitions per minute (Reset). Adjustable
between 0 and 99.99.
Displayed only if proportional band
 0.
dt
Derivative Time
DERIVATIVE TIME – Value of the term D of the control
mode PID, in seconds. Adjustable between 0 an 300.0
seconds.
Displayed only if proportional band
 0.
(t
Cycle Time
Pulse Width Modulation (PWM) period in seconds.
Adjustable between 0.5 and 100.0 seconds.
Displayed only if proportional band
 0.
kyst
Hysteresis
CONTROL HYSTERESIS (in engineering. units): This
parameter is only shown for ON / OFF control (Pb=0).
Adjustable between 0 and the measurement input type
span.
A(t
Action
CONTROL ACTION: For Auto Mode only.
re Control with Reverse Action. Appropriate heating.
Turns control output on when PV is below SP.
dir Control with Direct Action. Appropriate for
cooling. Turns control output on when PV is
above SP.
sfst
Softstart
SoftStart Function –: Time in seconds during which the
controller limits the MV value progressively from 0 to 100
%. It is enabled at power up or when the control output is
activated. If in doubt set zero (zero value disables the
Soft start function).
0ut1
0ut2
Outputs 1 and 2 function:
Off not used;
(trl control output.
A1 Alarm 1.
A2 Alarm 2.
A1a2 Alarm 1 AND Alarm 2 at the same time.
ALARMS LEVEL
Fva1
Fva2
Function Alarm
FUNCTIONS OF ALARMS. Defines the functions for the
alarms among the options of the Table 02.
Sp.a1
Sp.a2 ALARM SETPOINT: Tripping points for alarms 1 and 2.
Value that defines the point of activation for the
programmed alarms with the functions Lo or ki.
For the alarms configured with Differential type
functions, this parameter defines deviation (band).
Not used for the other alarm functions.
bla1
bla2
Blocking Alarm
BLOCK ALARM 1 and 2: This function blocks the alarms
when the controller is energized.
YES - enables initial blocking
NO - inhibits initial blocking
When enabled, the alarm will not be active at power-up,
waiting for PV (Process Variable) to reach a non-alarm
situation. From this point on the alarm will be free to
actuate should a new alarm situation occur.
xya1
xya2
Hysteresis of Alarm
ALARM HYSTERESIS. Defines the difference between
the value of PV at which the alarm is triggered and the
value at which it is turned off.
A1t1
A2t1
Alarm Time t1
Defines the temporization time t1, for the alarms.
In seconds.
A1t2
A2t2
Alarm Time t2
Defines the temporization time t2, for the alarms.
In seconds.
CONFIGURATION 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.
fltr
Filter
DIGITAL INPUT FILTER - Used to improve the stability of
the measured signal (PV). Adjustable between 0 and 20.
In 0 (zero) it means filter turned off and 20 means
maximum filter. The higher the filter value, the slower is
the response of the measured value.
Dp.po
Decimal Point
Selects the decimal point position to be viewed in both
PV and SP.
vni t
Unit
Unit. Temperature indication in °C or °F. Not shown for
linear inputs.
0ffs
Offset
SENSOR OFFSET: Offset value to be added to the PV
reading to compensate sensor error.
Default value: zero.
Spll Defines the SP lower limit.