48-DIN sized PID temperature controller with
adaptive fuzzy self-tuning
■User-selectable for K, J, R, B, PL-II and N
thermocouples and Pt100 resistance thermometers
■User adjustable temperature scale to suit application
■Two temperature alarm contacts independently
programmable with 12 functions
■Alarm hysteresis adjustable from 0.1 to 100.0˚C or ˚F
■3 levels of keypad security locking
■Selectable operation: PID with adaptive fuzzy logic,
PID with auto-tune, PD or On/Off
■Anti-reset windup (ARW) to reduce overshoot
■Relay, voltage pulse, analogue 4-20mA or 0-10VDC
output
■Very fast sampling period 0.125 seconds
■Adjustable PV filter to slow down response if required
■Wide 100-240 VAC or 24 VAC/DC supply voltage
■IP54 protection
■UL and CSA approved
Fuzzy Logic Temperature
Controller with 4-Digit LED Display
FCS-
13A
Options and ordering codes
Specifications
FCS-13A R–/M 100-240VAC
Fuzzy logic PID temperture
controller with 4-digit display
Relay output R
Signal voltage for SSR S
Current output A
Analogue voltage 0-10VDC
100-240VAC supply
24VAC/DC supply
Multisensor input
V
M
Optional extra: heater burnout alarm.
Please note: All models supplied with A2: Two alarms, BL: Screw
mounting bracket, IP: IP54 protection.
Input type
K-thermocouple J-thermocouple R-thermocouple B-thermocouple PL-II thermocouple N-thermocouple DIN Pt100 RTD J Pt100 RTD
Rated scale
–200 to 1370˚C –200 to 1000˚C 0 to 1760˚C 0 to 1820˚C 0 to 1390˚C 0 to 1300˚C –199.9 to 850.0˚C –199.9 to 500.0˚C
Sensor resistance 100Ωor less 10Ωper wire or less
Accuracy ±0.3% of full scale ± 1 digit (Type B thermocouple 0-300˚C, 0-600˚F accuracy not specified)
Display PV: 4-digit red LED, 8mm high; SV: 4-digit green LED, 8mm high
Control action User-selectable: Fuzzy self-tuning PID, PID with autotune, PD, On/Off
Proportional band 0.1 to 100.0%, Factory set to 2.5%
Integral time 1 to 3600 secs (off when set to 0), Factory set to 200 secs
Derivative time 1 to 3600 secs (off when set to 0), Factory set to 50 secs
Anti-reset windup Automatic in PID modes
Reset range in PD action Within the proportional band, providing within –199.9 to 999.9˚C (˚F)
Hysteresis in On/Off action 0.1 to 100.0˚C (˚F)
Proportional cycle 1 to 120 seconds, Relay output type: Factory set to 30 secs; Signal voltage type: Factory set to 3 secs
Output: relay types SPNO: 250V, 3A resistive load; 250V, 1A inductive load, cos ø = 0.4
Output: signal voltage types 12VDC +2VDC/–0VDC 40mA, short-circuit protected
Output: analogue types 4 to 20mA DC - max. load resistance 550Ω, 0-10VDC – output impedance 500Ω
Temperature alarm relay A1 SPNO: 250V 3A resistive load; 250V, 1A inductive load, cos ø = 0.4
Temperature alarm relay A2 SPNO: 250V 3A resistive load; 250V, 1A inductive load, cos ø = 0.4
Temp. alarms setting accuracy ±0.3% of full scale ±1 digit
Temperature alarms action ON/OFF action, hysteresis 0.1 to 100.0˚C (˚F), Factory set to 1.0˚C (˚F)
High limit alarm (1) Deviation from SV: ±200˚C (˚F)
Low limit alarm (1) Deviation from SV: ±200˚C (˚F)
High/low limits alarm (1) Deviation from SV: 1 to 200˚C (˚F)
High/low limit range alarm (1) Deviation from SV: 1 to 200˚C (˚F)
Absolute value (process) alarm (1) Input range minimum value to input range maximum value
Absolute (process) reverse alarm (1) Input range minimum value to input range maximum value
Sensor correction (input shift) –100.0 to 100.0˚C (˚F), Factory set to 0.0˚C (˚F)
Sensor break protection Upscale: Control output off
Supply voltage 85 to 264VAC 50/60Hz (100-240 VAC+10%–15%); 20 to 28 VDC/AC 50/60Hz
Power consumption 8VA approx.
Ambient temperature 0 to 50˚C
Ambient humidity 35 to 85% r.h. (non-condensing)
Insulation resistance (2) >10MΩat 500VDC
1.5k VAC for 1 min between: Sensor input terminals and ground, Power terminals and ground,
Dielectric strength (2) Control output terminals and ground, Alarm output terminals and ground, Sensor input terminals and
Power terminals, Control output terminals and Power terminals, Alarm output terminals and Power terminals,
Sensor input terminals and Control output terminals, Sensor input terminals and Alarm output terminals,
Control output terminals and Alarm output terminals
Mounting Flush
Front panel Membrane sheet keyboard, IP54
Weight 140g approx
Case material Light grey polycarbonate, flame retardant and self-extinguishing
(1) All alarm types can be programmed to operate with or without ‘standby’ function (2) Do not apply voltage between sensor input terminals and control output terminals of FCS-13A-A, FCS-13A-S and FCS-13A-V models
3
Year
Guarantee
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FCS-13A
Wiring connections
Notes: ●For ease of connection, especially when using cable trunking, all the terminals are designed to accept wires from the left (when
looking from the rear of the unit).
●If using a pre-wired, 2-wire Pt100 RTD, without connecting extension cables, a link should be added between terminals 9 and 10. If
using extension cables, a third wire should be added from point C, one of the joins, as in the diagram above and all three wires
should be the same gauge and length. If a simple link is added between terminals 9 and 10 in this case, no compensation for lead
length will be applied.
●As there is no fuse inside the temperature controller, it is recommended that one is provided in the external wiring to the power
supply terminals.
●The sensor wires should not be run adjacent to an AC power supply or the wires to the power supply terminals.
●When using the relay contact output version it is recommended to provide an auxiliary relay to protect the contacts of the
temperature controller’s built-in relay, even if the intended load capacity is smaller than that of the built-in contacts.
●For ease of replacement without disconnecting the wiring, or to gain access to the internal programming switches, the unit can be
withdrawn from the housing by pressing the release lever under the bezel and pulling firmly, holding the indents in the top and
bottom of the bezel.
●When re-assembling, ensure that the unit is the correct way up and that the sealing gasket has not been dislodged.
CT input for heater burnout option only. With
extension
cables Without
extension
cables
2-wire RTD
Front panel
Main control output
indicator (green LED)
Alarm 1 output indicator
(red LED)
Alarm 2 output indicator
(red LED)
Heater burnout alarm
action indicator (Option)
Sensor burnout action
indicator
Auto-tuning indicator
(yellow LED)
Control output OUT/OFF key
Mode key
Process
variable display
(red LED)
Setting
value display
(green LED)
Decrease key
Increase key
1
2
3
4
5
6
7
8
9
10
6
7
8
10
8
9
10
8
9
10
cLINK
(3-wire)
Alarm
output
Relay contact output
Control
output Non-contact
voltage output
or
current output
A1
COM
A1
A
B
B
RTD
Thermocouple
A2 CT input
A2
85 to 264Vac
or
20 to 28Vac/dc
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Features programmed using internal switches
FCS-13A
The FCS is programmed partly through the front keypad and partly by internal switches. The following are set internally:
Multi-Sensor Input – 8 Types Selectable
The FCS can be user-selected for any of the following sensors:
Control Action – 4 Operating Modes
The FCS can operate in four user-selectable control modes:
Adaptive Fuzzy-logic Self Tuning PID
In this mode, tuning is performed automatically if the setpoint is changed, if hunting (oscillation) occurs, if an offset is
introduced or any deviation occurs due to external influences. In this way, the optimum P, I, D and ARW values are always used
for initial ramp-up, normal level control or deviations from normal.
PID with Autotune
The P, I and D values can be manually set through the front keypad or the autotune can be activated to calculate and program
them automatically, together with the ARW. The FCS has several pre-programmed algorithms within its microprocessor and
chooses the most suitable one to calculate the values according to when the autotune is activated.
For example, if autotune is started when the system is first turned on, an algorithm is chosen to set the P, I and D values that
give the minimum overshoot. If the autotune is started when approximately level control is achieved, a different algorithm is
chosen to ensure that the most accurate, stable temperature is maintained. The autotune is activated through the front keypad.
PD control with reset function
PD control can be selected, e.g., in low thermal-mass systems where an integral function can cause overshoots and oscillations.
The inherent offset between PV and SV caused by PD control can be eliminated by the reset function which is selectable in
0.1˚C or ˚F increments. The reset value can be adjusted via the front keypad.
On/Off Control with Adjustable Hysteresis
If On/Off control is required, the hysteresis can be set in 0.1˚C or ˚F increments up to 100.0˚C or ˚F via the front keypad.
Heating or Cooling Operation
According to the process required, heating or cooling modes can be selected.
Input K J R B PL-II N DIN Pt100 J Pt100
–200 to 1370˚C -200 to 1000˚C 0 to 1760˚C 0 to 1820˚C 0 to 1390˚C 0 to 1300˚C -199.9 to 850.0˚C -199.9 to 500.0˚C
Rated scale –320 to 2500˚F -320 to 1800˚F 0 to 3200˚F 0 to 3300˚F 0 to 2500˚F 0 to 2300˚F -199.9 to 999.9˚F -199.9 to 900.0˚F
˚C or ˚F Scales
When ˚C or ˚F are selected, the rated scale values change accordingly as do all other setting value ranges: Alarm values, Reset
function, etc.
7
6
7
6
7
6
6
7
6
7
6
7
6
7
6
7
6
7
7
6
7
6
6
7
6
7
6
7
6
7
6
7
6
7
7
6
Heating (reverse) action
Action
Main control
action
Output
Indication
Output
Indication
Output
Indication
Proportional band
Setpoint value SV
Low temp
12V
Green Lit
20mA 4-20mA 4mA
12/0V 0V
Green Lit Unlit
Green Lit Unlit
Unlit
High temp
Cycle action is performed
according to deviation
Cycle action is performed
according to deviation
No cycle action. Current
varied according to deviation
Relay contactCurrent Non-contact
signal voltage
Cooling (direct) action
Action
Main control
action
Output
Indication
Output
Indication
Output
Indication
Relay contactCurrent Non-contact
signal voltage
Proportional band
Setpoint value SV
Low temp
0V
4mA 4-20mA 20mA
12/0V 12V
Lit
Green Unlit
Green Unlit
Green Unlit
Lit
Lit
High temp
Cycle action is performed
according to deviation
Cycle action is performed
according to deviation
No cycle action. Current
varied according to deviation
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Features programmed using internal switches (continued)
Features programmed using the front keypad
Alarm 1 – Programmable With 12 Functions
Alarm 2 – Programmable With 12 Functions
There are two alarm contacts which are independently programmable with the 12 functions shown below:
The first eight alarm types are deviation alarms. The alarm turns on if the PV (Process variable) deviates from the SV (Setpoint
value) by the amount programmed in the alarm, e.g. if a High Limit Alarm is set at 10˚C and SV = 40˚C, the alarm turns on
when PV rises above 50˚C. If the alarm is set at –10˚C and SV = 40˚C, the alarm turns on when PV rises above 30˚C.
In the four absolute alarms, the actual value of alarm required is programmed, e.g. to alarm at PV=50˚C, the alarm should be
set at 50˚C.
The standby function prevents the alarm from registering if an alarm condition exists when power is initially applied to the
controller. This also happens if the setpoint value, SV, is changed to a level which places the current PV into an alarm. When
PV has moved out of the alarm level into the normal control area, then any further alarms will be registered.
The alarm function is set using internal switches, but the actual value at which the alarm occurs is programmed via the front
keypad.
3 Levels of Keypad Security Locking
To prevent unauthorised modifications to the programming, one of three levels of keypad security locking can be set, to give
partial or no access to change the parameters:
Level 1 – No setting values can be changed.
Level 2 – Only the setpoint can be changed, all others are locked.
Level 3 – All setting values can be changed temporarily. When the power is turned off and on again, all settings
return to their former values.
Adjustable Setpoint Limits
The setpoint can normally be programmed within the full range which varies according to the chosen sensor, e.g. –200 to
+1370˚C for type K thermocouples. The upper and lower limits can be restricted to prevent unauthorised or accidental changes
beyond these points.
% Output Power Display
The FCS normally shows the actual process temperature on the PV display and the required setpoint on the SV display, but can
be programmed to show the equivalent output power in % on the SV display if required with a resolution of 0.1%. The decimal
point flashes as a reminder that it is not a setpoint. This value reflects the ON time of proportional control as a percentage of
the total cycle time for the relay and voltage output models, or the mA output as a percentage of full scale for the current
output model.
High limit alarm action High limit alarm action with standby function Low limit alarm action Low limit alarm action with standby function
High/low limits alarm action High/low limits alarm action with standby function High/low limit range alarm action High/low limit range alarm with standby
Absolute value alarm function Absolute value alarm with standby Absolute value reverse alarm Absolute value reverse with standby
Hysteresis
SV setting Alarm setting
ON
OFF
Hysteresis
SV setting Alarm setting
ON
OFF
Hysteresis
Alarm setting 0˚ Alarm setting 0˚ Alarm setting 0˚ Alarm setting 0˚
ON
OFF
Hysteresis Hysteresis
Hysteresis
Hysteresis
Hysteresis
Hysteresis
Hysteresis
SV setting Alarm setting SV settingAlarm setting
SV setting Alarm setting
ON
OFF
ON
OFF
SV settingAlarm setting
SV setting Alarm setting
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Hysteresis
Hysteresis
SV setting Alarm setting
ON
OFF
ON
OFF
In parts, the standby function operates.
FCS-13A
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Features pr ogrammed using the front keypad (continued)
Other features
W ide Alar m Setting Adjustment
The setting values of the two alarms ar e programmed independently and ar e variable over the full scale span, e.g. for type K
thermocouples:
Deviation alarms ±200˚C or ±200˚F
Absolute alarms –200 to +1370˚C or –320 to +2500˚F
Adjustable Alarm Hysteresis
The hysteresis between the points at which the alar m turns on and resets can be adjusted in 0.1˚C or ˚F increments between
0.1 and 100.0˚C or ˚F.
Control Output Off
If the control is requir ed to stop, or one of several FCS models in a process is not used, the contr ol action can be turned off,
with the PV display showing ‘OFF’ as a clear indication. This setting is retained, even if power is turned of f and on again, until
it is cancelled.
Sensor Correction (Input Shift)
This function can be used when a sensor cannot be located at the ideal position for control and is placed where the
temperature may deviate from that in the ideal position. Also, when using several temperatur e controllers, this function can be
used to cor r ect the apparent temperatur e difference due to the tolerances of the sensors and the controllers.
PV Filter T ime Constant Setting
If the PV is found to fluctuate due to exter nal disturbances to systems with short time constants then the PV filter feature of
the FCS can be used to slow down the response of the whole system (not just the display).
Variable Reset in PD Control
If the FCS is set for PD control action, a reset function
is available to cor r ect the inherent offset associated
with this form of contr ol. This is programmable in
0.1˚C or 0.1˚F increments.
W ide Adjustment of P, I and D Values
P – Proportional Band 0.1 to 100.0%
I – Integral time 1 to 3600 seconds
D – Derivative time 1 to 3600 seconds
Fully Variable Proportional Cycle
Proportional Cycle 1 to 120 seconds
Warm-up Indication
When power is first applied to the controller, the PV and SV displays show the type of sensor selected, ˚C or ˚F selected and
the scale maximum value in ˚C or ˚F accordingly for approximately 2 seconds, as shown in the table below:
Reset applied
Offset is corrected automatically
Time
Offset
Setpoint value
Temperature
FCS-13A
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Other features (continued)
Accessories
Dimensions and mounting
Fast Sampling
The sampling period is how often the temperature of the process is measur ed and the display updated. The FCS has a
sampling period of 0.125 seconds, four times as fast as conventional controllers for closer process contr ol.
Sensor Break/Overscale/Underscale Indication
If the sensor breaks or burns out, or the input temperature exceeds the scale maximum value +5% of the scale span, the PV
display flashes and the control output turns of f. At the same time, the A2 alar m turns on, e.g. for type K,
1370+(5% x 1570)=1448.5˚C.
If the input temperature falls below the scale minimum value –1% of the scale span, the PV display flashes and the
control output turns of f, e.g. for type K, –200 – (1% x 1570) = –215.7˚C.
Heater Burnout
The FCS is available with heater bur nout detection as an optional extra which must be specified at the time of or dering. This
function monitors the cur r ent through the load heater elements via a current transfor mer. If the current falls below a user-
programmed level, alar m A2 turns on and latches and will only be reset if the fault is rectified and then the power to the FCS
tur ned off and on again.
Mounting panel thickness 1 to 15mm
Maximum screw
torque 1.2 kgcm
Individual
mounting
nX48-3+0.5
45+0.5
75
45+0.5
45+0.5
Close mounting of n units
Finger-touch protection cover for the screw ter minals.
Clear silicone rubber cover to enclose the complete bezel to give IP66 pr otection. Installed by placing over
the bezel before the controller is panel mounted. Mounting then traps the cover between the contr oller and
the panel for complete sealing. Operation of the keypad is still possible through the cover.
FCSTC
FC-48-S
-0
-0
-0
-0
FCS-13A
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