N1200HC Controller
NOVUS AUTOMATION
6/12
Display of PV/Programming
: Displays the current value of PV
(Process Variable). When in configuration mode, it shows the
parameters names.
Display of SP/Parameters
: Displays the value of SP (Setpoint).
When in configuration mode, it shows the parameters values.
COM Indicator
: Flashes to indicate communication activity in the
RS485 interface.
TUNE Indicator
: Stays ON while the controller is in tuning process.
MAN Indicator
: Signals that the controller is in the manual control
mode.
RUN Indicator
: Indicates that the controller is active, with the control
output and alarms enabled.
OUT Indicator
: For relay or pulse control output; it reflects the actual
state of the output. If an analog output is assigned for control, the
OUT indicator lights continuously.
A1, A2, A3 and A4 indicators
: signalize the occurrence of alarm
situation.
P
P Key
: used to walk through the menu parameters.
Back Key
: used to retrocede parameters.
Increment key and
-
Decrement key
:
allow altering the
values of the parameters.
When the controller is powered on, its firmware version is presented
for 3 seconds, after which the controller starts normal operation. The
values of PV and SP are displayed and the outputs are enabled.
In order to operate appropriately, the controller needs a configuration
that is the definition of each one of the several parameters presented
by the controller. The user must be aware of the importance of each
parameter and for each one determine a valid condition or a valid
value.
Important
:
The first parameter to be set is always the type of input.
The parameters are grouped in levels according to their functionality
and operation easiness. The 7 levels of parameters are:
LEVEL
ACCESS
1- Operation
Free access
2- Tuning
Access reserved
3- Programs
4- Alarm
5- Scale
6- I/Os
7- Calibration
Table 5
– Parameters levels
The operating level (first level) has easy access by the
P
.key. The
other levels require a key combination to be accessed. The
combination is:
(BACK) and
P
(PROG) pressed simultaneously
Press to advance or to retrocede parameters within a level. At
the end of each level, the controller returns to the operation level.
Keep pressing the
P
key to move fast forward in the level.
Alternatively, the controller returns to the operation level after
pressing the key for 3 seconds
All configuration parameters are stored in protected memory. The
values are saved when the keys or are pressed after changing
a parameter value. The value of SP is saved upon pressing the
key or every 25 seconds.
CONFIGURATION PARAMETERS
OPERATION LEVEL
PV AND SP INDICATION: The upper display
shows the current value of PV. The lower display
indicates the value of the control SP in automatic
mode.
If PV exceeds the limits established or the input is
open, the upper display shows "----". If there is a
hardware error, the display shows "
Er n
", where
“n” is the error code.
(trl
Control
Control Mode:
auto
- Means automatic control mode.
Man
- Means manual control mode.
Bumpless transfer between automatic and manual
control modes.
MANIPULATED VARIABLE VALUE (MV1) (control
output 1):
The upper display shows the PV value and the
lower display shows the
percentage
value of MV1
applied to the selected control output 1.
In manual
control mode, the value of MV1 can be changed. In
the automatic control mode, the value of MV1 can
only be viewed. To distinguish the screen of the
SP screen, the value of MV1 will be flashing.
Indicação de PV
(Visor Vermelho)
Indic. de MV2
(Visor Verde)
MANIPULATED VARIABLE VALUE (MV2) (control
output 2):
The upper display shows the PV value and the lower
display shows the
percentage
value of MV2 applied
to the selected control output 2.
In manual control
mode, the value of MV2 can be changed. In the
automatic control mode, the value of MV2 can only
be viewed. The value of MV2 will be flashing too.
To distinguish the screen of the MV1 screen,
the value of MV2 will be displayed with a
negative sign.
E Pr
Execution of Program
- Selects the ramp and
soak profile program to be executed.
0
- Does not execute program
1
to
20
- Number of the program to be
executed
p.seg
Screen for indication only. When a ramp and soak
program is active, this parameter shows the number
of the segment under execution, from 1 to 9.
t.seg
Screen for indication only. When a ramp and soak
program is in execution, it shows the remaining
time to the end of the current segment, in units of
time configured in the
Pr.tb
parameter.
rvn
Enable Control:
YES
Control and alarms enabled.
NO
Control and alarms disabled.
TUNING PARAMETERS LEVEL
atvn
Defines the control strategy to be taken:
off
– Turned off.
Fast
– Fast automatic tuning.
Full
– More accurate automatic tuning.
self
– P auto-adaptative tuning
rslf
– Forces one new precise automatic
p auto-adaptative tuning.
T9kt
–
Forces one new precise aut
auto-adaptative tuning when Run = YES or
controller is turned on.
P
P
P
PV Indication
(Red Screen)
SP Indication
(Green Screen)
PV Indication
(Red Screen)
MV Indication
(Green Screen)