User guide

N1100 Controller
NOVUS AUTOMATION 6/11
DESCRIPTION OF THE PARAMETERS
PV / SP indication - The upper display shows the
current value of PV. The lower display shows the
control SP value.
avto
Control
Control Mode:
Yes
- Means automatic control mode.
no
- Means manual control mode.
Bumpless transfer between automatic and manual.
PV / MV- The upper display shows PV value and the
lower display shows the percentage
of the
manipulated variable MV
applied to the control
output.
When in manual control, the MV
value can be
manually changed by the and
keys.
When in
auto mode the MV value can only be viewed.
To distinguish the MV display from the SP display,
the MV is shown flashing intermittently.
Pr n
Enable
Program
Execution of Program - Selects the ramp and
soak profile program to be executed.
0 - does not execute program
1 to 7 - number of the program to be
executed
With enabled outputs (
RvN
=
YES
), the program
starts right after the program is selected.
rvn
Enables control outputs and alarms.
YES
- Outputs enables.
NO
- Outputs not enabled.
CYCLE OF TUNING
Atvn
Auto-tune
Enables the auto tuning feature for the PID
parameters.
YES
– Auto-tune enable
NO
– Do not execute auto tune.
See the DETERMINATION OF PID PARAMETERS
section for more details.
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 24.00.
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
and250seconds.
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 - This parameter is only shown
for ON / OFF control. Adjustable between 0 and
the measurement input type span.
Displayed only if proportional band = 0.
ACt
Action
Control logic:
re
Control with reverse Action. Appropriate for
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.
bias
Bias function - Allows adding a percentage value
between -100 % and +100 %. to the MV control
output.
The value 0 (zero) disables the function.
ovll
Output Low
Limit
Lower limit for the control output - Minimum
percentage value assumed by the control output
when in automatic mode and in PID.
Typically configured with 0.0 %.
ovkl
Output High
Limit
Upper limit for the control output - Maximum
percentage for the control output when in
automatic mode and in PID.
Typically configured with 100.0 %.
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).
Sp.a1
Sp.a2
Sp.a3
Sp.a4
Alarm SP: 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.
CYCLE OF PROGRAMS
t.bas
Program time
base
Program time base - Defines the time base that will
be used by all Ramp & Soak programs.
Se(
- Time basis in seconds
min
- Time basis in minutes
Pr n
Program
number
Selects the ramp and soak profile program to be
edited/viewed. The sequence of parameters that
follows refer to this selected program. Total of 20
programs possible. There are 7 possible programs.
Ptol
Program
Tolerance
Maximum admitted deviation of PV w
ith respect to
SP.If exceeded, the program execution is suspended
(the internal timer freezes) until the deviation be
returns back within the defined tolerance.
The value 0 (zero) disables the function.
Psp0
Psp7
Program SP
Program SP’s, 0 to7: Group of 8
values of SP that
define the Ramp and Soak profile segments.
Pt1
Pt7
Program Time
Segments durations, 1 to7:
Defines the time of
duration, in second or minutes, 7 of the segments of
the program being edited.
Pe1
Pe7
Program event
Alarms of Event, 1 to 7:
Parameters that define
which alarms are to be activated during the
execution of a certain program segment. The alarms
chosen must have its function configured as “
rS
”.
Lp
Link Program
Link Program: number of the next profile program to
be linked following the current program. Profiles can
be linked together to produce larger programs of up
to 49 segments
.
0 - do not link to any other program.
1 a 7 – number of the program to be linked to.
PV Indication
(Red Screen)
SP Indication
(Green Screen)
PV Indication
(Red Screen)
MV Indication
(Green Screen)