N1020 Temperature Controller
NOVUS AUTOMATION
4/8
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
– P auto - adaptative tuning
rslf
– Forces one new precise automatic p
auto - adaptative tuning.
TGht
- Forces one new precise aut 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
Level 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
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.
flsh
Allows you to identify the occurrence of alarm conditions
by flashing the PV indication on the display screen.
YES
- Enables alarm signaling flashing PV
NO
- Disables alarm signaling flashing PV
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.
vn
i
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
SP Low Limit
Defines the SP lower limit.
To 0-50 mV input type sets the lower range for SP and PV
indication.
Spxl
SP High Limit
Defines the SP upper limit.
To 0-50 mV input type sets the upper range for SP and PV
indication.
T1me
Timer
Time. Adjustment. 00:00 to 99:59 (HH:MM).
(same function as the one presented in the operation
level)
