Controller N120
INSTRUCTIONS MANUAL – V1.0C
INTRODUCTION
The N120 is an extraordinarily versatile process controller. It holds in
one single instrument all the main features needed for the vast majority
of industrial processes. It accepts in a single model the majority of the
sensors and signals used in the industry and provides the main
output types required by usual applications.
The instrument setup is carried out through its frontal keypad without
any hardware change.
It is important that the users read carefully this manual before using
the controller. Verify if the release of this manual matches the
instrument version (the firmware version is shown when the controller
is energized). The N120 main characteristics are:
• Multi-sensor universal input;
• Protection for open sensor in any condition;
• Relay and logic pulse control outputs available in the standard
model;
• 4-20 mA output (optional)
• Self-tuning of PID parameters;
• Up to two alarm outputs, with functions of minimum, maximum,
differential (deviation), open sensor and event;
• Timer functions that can be associated to the alarms;
• Retransmission of PV or SP in 0-20 mA or 4-20 mA (optional);
• Digital input with 2 functions;
• Programmable soft-start;
• 20 setpoint profile programs with 9 segments each, with the
ability to be linked together for a total of 180 segments;
• Password for parameters protection;
• Universal power supply: 100-240 Vac, ±10%..
CONFIGURATION / FEATURES
INPUT TYPE SELECTION
Select the input type (in parameter “tYPE
tYPEtYPE
tYPE”) from Table 1 below.
TYPE CODE RANGE OF MEASUREMENT
J
Tc j
Tc jTc j
Tc j
Range: -110 to 950 ºC (-166 to 1742 ºF)
K
Tc k
Tc kTc k
Tc k
Range: -150 to 1370 ºC (-238 to 2498 ºF)
T
Tc t
Tc tTc t
Tc t
Range: -160 to 400 ºC (-256 to 752 ºF)
N
Tc n
Tc nTc n
Tc n
Range: -270 to 1300 ºC (-454 to 2372 ºF)
R
Tc r
Tc rTc r
Tc r
Range: -50 to 1760 ºC (-58 to 3200 ºF)
S
Tc s
Tc sTc s
Tc s
Range: -50 to 1760 ºC (-58 to 3200 ºF)
B
Tc b
Tc bTc b
Tc b
Range: 400 to 1800 ºC (752 to 3272 ºF)
E
Tc e
Tc eTc e
Tc e
Range:-90 to 730 ºC (-130 to 1346 ºF)
Pt100
Pt
PtPt
Pt
Range: -200 to 850 ºC (-328 to 1562 ºF)
0–50 mV
L0.50
L0.50L0.50
L0.50
Linear Signals
Programmable indication from -1999 to 9999.
0-5 Vdc
L0.5
L0.5L0.5
L0.5
0-10 Vdc
L0.10
L0.10L0.10
L0.10
Table 1 - Input types
CONTROL OUTPUT
Either logic pulse (5 Vdc / 20 mA) or relay, software selectable.
ALARM OUTPUTS
The N120 has two independent alarm outputs. They can be
configured to operate in nine distinct modes, as shown in Table 2.
SCREEN TYPE ACTUATION
Off
OffOff
Off
Inoperative Output is not used as alarm.
Ierr
IerrIerr
Ierr
Open sensor
(input Error)
Activated when the input signal of PV is
interrupted, out of the range limits or Pt100
in short-circuit.
Rs
RsRs
Rs
Event (r
Positive SPAn Negative SPAn
Table 2 – Alarm Functions
off
offoff
off
Inoperative
ierr
ierrierr
ierr
(input Error). Activated when the input signal of PV is
interrupted, out of the range limits or Pt100 in short-
circuit.
Rs
RsRs
Rs
Event (ramp and Soak). Activated in a specific
segment of program. .
t.end
t.endt.end
t.end
Timer end. Signals when the timer expires.
lo
lolo
lo
Minimum value (Low).
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