Esco SC-20D User manual

12. NOTES.
12
SC-20
TEMPERATURE CONTROLLER
USER MANUAL / WARRANTY
Version 2.0
D

1. SPECIFICATIONS.
Input:
Sampling period: 330 ms
230V~ ±15% or 12V=/~, max 3VA
Operating conditions: -5...60°C; 0...85%RH (non-condensing)
Storage conditions: -40...85°C; 0...85%RH (non-condensing)
Power supply:
two temperature sensors: NTC 5k by 25°C
bistate input (normally opened or normally closed)
Measuring accuracy: ±0,5%
Display resolutio: 0,1°C in whole range
Control form: ON-OFF with hysteresis
Display: LED, 4 digits, 11mm height with graphic icons
Protection class: Ip20 / II
Measuring range:: -50...+150°C
Setting resolution: 0,1°C in whole range
2
2. OUTPUTS CARRYING CAPACITY.
11.2. Domestic hot water circuit circulation pump and central heating circuit pump control system.
11
Output: Relay: Maximum resistive
load (for example heater): Maximum inductive load (for example engine):
30A 250V~
5
10 cycles 20A, 4500W 8A, 1500W, 2HP(2KM)
8A 250V~
5
10 cycles 8A, 1500W 2A, 400W, 0.5HP(0.5KM)
OUTPUT1
OUTPUT2
3. FRONT PANEL.
temperature setting signalling
OUTPUT1 signalling. LIGHTS: output active; BLINKS: output waits for start-up
OUTPUT2 signalling. LIGHTS: min or max temperature value exceeded (see: F15 or F16);
BLINKS: output waits for start-up (see: F17)
temperature display
temperature sensor number
entry to the parameters menu
temperature setting button
value increasing button
value decreasing button
emergency states signalling
Functions performed by the controller in the system:
- domestic hot water circulating pump and central heating
pump control system.
Tips for parameters programming:
F10=1 (container T1 and boiler T2 temp measurement)
F11=setting specifying the boiler temperature growth in
relation to the container temperature so that the domestic
hot water pump switches on, for example 8 °C
F12=DHW pump switching hysteresis, for example. 2 C
F15=given water temperature in the container. DHW pump
has a priority, so that only after reaching this setting, central
heating pump switches on, for example 60 °C
F16=OFF; F17=0.1; F21=0; F29=COOL ; F50=0 ; F51=0
F52=0 (when central heating pump switches on, domestic
hot water pump switches off)
°
F12=2°C
F12=2°C
6°C
8°C
Main
output
Time
Time
Temp.
0
1
10°C
Auxiliary
output when T1>F15
1
T2-T1
Time
0
F11
SC-20
T1 - boiler temperature sensor
T2 - fireplace temperature sensor
Collector pump and c.h. pump max. 400W 230V~ Power supply
230V~
20(8)A 8(2)A
T2 Pk Pco
131415161211
D
M
set
Pch
Pdhw Cold
water
T2
T1
Boiler
M
set

4. CONTROLLER HANDLING.
4.1. TEMPERATURE SETTING.
M
4.2. PARAMETERS PROGRAMMING.
M
3
11. ADVANCED SYSTEMS.
11.1. Solar collector and boiler circulating pump control system.
10
Functions performed by the controller in the system:
–collector pump control
–central heating boiler circulating pump control system
Tips for parameters programming:
F10=1 (boiler T1 and collector T2 temp. measurement)
F11=temperature difference T2-T1 between the solar
collector and the boiler after reaching that, the collector's
pump switches on, for example 8 °C
F12=pump switching hysteresis, for example 2 C
F15=OFF
F16=In cloudy days, when solar energy is low, it is essential
to heat-up the boiler from the other source. This parameter
specifies the boiler temperature below which an external
heating source switches on, for example boiler circulating
pump. Setting, for example 40 °C.
F17=90min (external heating source switching delay)
F21=0; F29=COOL ; F50=0 ; F51=0 ; F52=0
°
F12=2°C
F12=2°C
6°C
8°C
Main
output
Time
Time
Temp.
0
1
10°C
Auxiliary
output When T1<F16
1
T2-T1
Time
0
F11
Push the button
for 2 seconds.
Confirm the set with
Key.
Diode lights up.
Using or button
set the desired
temperature value.
set
set
Diode lights off.
Remarks:
–to cancel the setting, press the button in any time
–the setting change can be limited by F13 and F14 parameters
Information:
To improve quick increasing or decreasing the settings values hold the or button
constantly for at least 1 sec.
Enter the menu holding
Key for 5 sec., Until:
Command
displays.
Using key confirm
the new parameter
value and return to the
parameters list.
Using or key
choose the parameter
you want to change and
enter with
Key.
set
set
set
set
set
M
M
If the access is protected
Command
displays.
Using , and
Buttons enter the
password and confirm
with key.
Using or button
set the desired
parameter value.
Finish programming
pressing button or
enter the ‘’End’’ command
and press key or wait
30 sec. without pressing
any button
Remarks:
- press button to cancel the parameter setting
Information:
Hold or button for at least 1 sec. to improve quick increasing and decreasing of setting
values.
SC-20
T1 - boiler temperature sensor
T2 - fireplace temperature sensor
Collector pump and c.h. pump max. 400W 230V~ Power supply
230V~
20(8)A 8(2)A
T2 Pk Pco
131415161211 °C
M
set
°C
M
set
°C
M
set
M
set
M
set
°C
M
set
M
set
°C
M
set
M
set
Pc
Pb
T2 T1
M
set

4.3. DESCRIPTION OF THE PARAMETERS.
5. GENERAL DESCRIPTION.
5.1. ADJUSTMENT.
4
8. MOUNTING.
9. INSTALLATION.
9
10. ADM ISSIONS.
6
2000 2050
Protection class
IP67
50 (3 mod.)
89,5
14 51 32
45
67,2
35
MountingonaDINrail(TS35),50cmwidth(3modules).
Code: Default:Description:
F11 8.0°CValue of tempereture setting. Range of changes is limited by F14 and F13.
F12 0.5°CHysteresis (temperature control accuracy).
Range:
F14...F13
0.1...20.0°C
F13 150.0°CMaximum value possible to set by the user.
F14 Minimum value possible to set by the user. -50.0...150.0°C
-20.0...+20.0°C
F19 0.0°C Temperature sensor T1 calibration. This is the value of rescaling the T1
temperature sensor in relation to actually measured temperature.
F21 0.0min
Output1 minimum down time. It also means the delay time of switching
the output on after giving power supply. Parameter protects devices,
for example engine from too frequent switching in case of power failure. 0.0...10.0min
F29 COOL
Controlling output work mode: COOLING/HEATING COOL/HEAT
F50
0
Digital input D1: 0 – unused; 1 – alarm when circuit 4-5 closed,
2 – alarm when circuit 4-5 closed with maintaince of alarm signalling,
3 – alarm when circuit 4-5 opened,
4 – alarm when circuit 4-5 opened with maintance of alarm signalling 0...4
F51 1Sound signaller (beep) active when temperature alarm: 0 – N0, 1 – YES
F52
0
The way of protection the system and the devices connected to the main
output when the temperature alarm occurs: 0 – main output off and locked
when an alarm, 1 – main output on and locked when the alarm,
2 – alarm does not affect the operation of the main output
0, 1
0, 1, 2
F80 OFF Password to access the configuration menu.
OFF – password protection inactive, F80 = 0000 – no password 0000...9999
F83 0Display mode 0 - measurement from two sensors displayed alternately every
3 sec.; 1 - measurement from T1 sensor; 2 - measurement from T2 sensor
F98 -Reserved.
0, 1, 2
-
F99 - Controller test. Disconnect output device to make the test!
Otherwise the system can crash. -
End Exit the menu.
F57 0 Output2 contacts scheme: 0-contacts normally opened, closed when the
temperature alarm or when digital input activation; 1-contacts normally closed,
opened when the temperature alarm or when digital input activation 0, 1
F10 1 Controller work mode:
0 - normal (displays from the main sensor T1, auxiliary sensor T2 off)
1 - differential (display difference between auxiliary and main sensor (T2-T1)
2 - average (display average from two sensors: main and auxiliary (T1+T2/2)
0, 1, 2
-50.0°C
-50.0...150.0°C
F15 85°CHigh temperature alarm. F15=OFF – alarm off
F16 5.0°CLow temperature alarm. F16=OFF – alarm off -50.0...150.0°C -50.0...150.0°C
F17 0.1minThe delay of switching high and low temperature.
F18 0.0°C Temperature sensor T2 calibration. This is the value of rescaling the T2
temperature sensor in relation to actually measured temperature.
0.1...99.9min
-20.0...+20.0°C
--
SC-20isdesignedtocontroltheheatingandcoolingsystem.Awiderangeofconfiguration
makesthecontrollerperfectforuseintypicalarrangements,suchasboilerorcirculatingpump
Controlandcomplex,forexample:solarcollectororfireplacewithwaterjacketcontrol.
Adjustmentisbasedonthemeasurementfromoneortwotemperaturesensors:
–when measuring from one sensor (F10=0) controller mainstains the set temperature switching on the
mainoutputin''heating''or''cooling''modewithdeviation(regulatedhysteresis)
–whenmeasuringfromtwosensorstheusercanselecttheoperatingmodeofthecontroller:
–the output is activated based on the difference (F10=1) or average (F10=2) from two
temperaturesensors.
Indifferentialmode,thecontroller activates,e.g.Collectorcirculatingpumpafter reaching anessential
difference between boiler's and collector's sensor.And in averaging mode, the controller operates as
an usual temperature controller except that the measured value is calculated from the arithmetic
average of readings from two temperature sensors, for example at the two ends of the pipeline or the
boiler.
Be aware of the conditions where the controller operates. Install in a place, where there is not
too high temperature and humidity and no condensation. Should be ventilated
in order to remove the heat.
ATTENTION!
It is not allowed to work with electric cables when the device is energized.
You should avoid crossing wires using short connections. We recommend securing the source
of controller power supply and temperature sensor input against electrical interference
Controller meets the requirements for immunity to electromagnetic interference in an
industrial environment according to the following standards:
Electromagnetic compatibility (EMC):
–EN-61000 part 6-4 – requirements for emissivity in an industrial environment
–EN-61000 part 6-2 – requirements for immunity in an industrial environment
It also meets the safety requirements according to standard:
–EN-61000 part 1 – safety requirements for eletrical devices
Controller meets the requirements of EU directives No. 72/23/EEC; 93/68/EEC; 89/336EEC.

Here are some examples of control systems using the SC-20 including diagrams of supported
installations,tipsforprogramminganddiagramsofelectricconnections.
5.2. Heater with external alarm control system.
5.3. Heater and fan control system.
6. DIGITAL INPUT.
7. ALARM MESSAGES.
Controller has digital input D1 for emergency states signalling, such as system failure,
pressure control or safety thermostat activation, etc. Input type (normally opened, normally
closed) is programmed by F50 parameter. After opening/closing circuit of 4-5 digital input, the
controllerturnsoffthemainoutputandturnsonthesoundsignaller(beep) and an auxiliary output
and the display shows A11 code. Emergency state sound signalling can be maintained, until the
alarmresetbyusingthebuttons(F50=2or4).
When alarmactivatesthe indicator startsto blinkand thesoundsignaller (beep) activates
(when F83=1). According to the occurence controller turns on/off output and the front panel
displaysoneofthefollowingalarmmessages:
8
Statement Occurence
digital input activation F50
T1 sensor error:
open circuit or short circuit
Output operation
auxiliary output active, the main inactive
auxiliary output active, the main inactive
T2 sensor error:
open circuit or short circuit auxiliary output active, the main inactive
high temperature alarm F15 auxiliary output active, the main depends on
the setting of F52
low temperature alarm F16 auxiliary output active, the main depends on
the setting of F52
T1+T2
2
5.7. Chamber, incubator and boiler with adjustment calculated from the arithmetic
mean of the measurements from two temperature sensors T1 and T1 PRECISE
control system.
F12=1°C
F12=1°C
79°C
80°C
Main
output
Time
Time
Temp.
0
1
81°C
Functions performed by the controller in the system:
–heater control
–external acoustic signaller control
–system protection against overheating and freezing
–emergency states sound signalling
Tips for parameters programming:
F10 = 2 (temperature measurement from two sensors T1
and T2)
F11 = temperature setting
F12 = heater switching hysteresis, for example 1 °C
F15 = high temperature alarm, for example 85 °C
F16 = low temperature alarm, for example 5 °C
F17 = 0.1; F21 = 0;
F29 = HEATING;
F50 = 0; F51 = 1; F52 =0
Auxiliary
output
1
85°C
5°C
F15
F11
F16
Time
0
F12=1°C
F12=1°C
79°C
80°C
Main
output
Time
Time
Temp.
0
1
81°C
Functions performed by the controller in the system:
–heater control (boiler, electric heater, etc.)
–external acoustic signaller control
–system protection against overheating and freezing
–emergency states sound signalling
Tips for parameters programming:
F10 = 0 (system temp. measurement from T1 sensor)
F11 = temperature setting
F12 = heater switching hysteresis, for example 1 °C
F15 = high temperature alarm, for example 85 °C
F16 = low temperature alarm, for example 5 °C
F17 = 0.1; F21=0; F29=HEATING
F50 = 0 or 2 (2 – if you used the external safety thermostat
STB connected to the D1 input)
F51 = 1 (sound signaller active)
F52 = 0 (heater off in danger point)
Auxiliary output
Time
0
1
85°C
5°C
F15
F11
F16
F12=1°C
F12=1°C
19°C
20°C
Main
output
Time
czas
Temp.
0
1
21°C
Functions performed by the controller in the system:
–heater heating up the chamber control
–fan cooling the chamber control
–emergency states sound signalling
Tips for parameters programming:
F10 = 0 (temperature measurement from T1 sensor)
F11 = temperature setting
F12 = heater switching hysteresis, for example 1 °C
F15 = temperature setting of switching the fan cooling the
chamber, for example 30 °C
F16 = OFF
F17 = 0.1; F21 = 0
F29 = HEATING
F50 = 0 or 2 (2 – if you used the external safety thermostat
STB connected to the D1 input)
F51 = 0; F52 = 0
Auxiliary output
1
30°C F15
F11
Time
0
SC-20
T1 - boiler temperature sensor
T2 - fireplace temperature sensor
Heater max. 3200W, Signaller 230V~ Power supply
230V~
20(8)A 8(2)A
T2 Electr.
Heater
Alarm
131415161211
Alarm
Heater
SC-20
T1 - main temperature sensor
D1 - external safety thermostat STB
Heater max. 3200W, signaller 230V~ Power supply
230V~
20(8)A 8(2)A
Thermostat
STB
131415161211
Wentylator
Grzałka
SC-20
T1 - main temperature sensor
D1 - external safety thermostat STB
Heater max. 3200W, fan 400W 230V~ Power supply
230V~
20(8)A 8(2)A
Termostat
STB
131415161211
BOILER
T1
T2
Heater
~230V
Alarm
M
set
T1
Alarm
Heater
M
set
T1 Fan
Heater
M
set

F11±F12
Main
output
Time
Time
Temp.
0
1
5.3. Central heating circuit circulating pump with an external alarm control system.
Functions performed by the controller in the system:
–central heating circulating pump control
–external acoustic signaller control
–system protection against overheating
Tips for parameters programming:
F10=0 (T1 pipeline temperature measurement)
F11=pump start temperature setting, for example 40 °C
F12=pump switching hysteresis, for example 0.1 °C
F15=high temperature alarm in boiler, for example 85 °C
F16=OFF; F1 = 0.1; F21 = 0
F29=COOLING (switching pump after reaching the
temperature of the boiler)
F50=0 or 2 (2 – if you used an external safety thermostat
STB connected to the D1 input)
F51=1 (sound signaller active)
F52=0 (when the high temperature alarm occurs, the
pump switches on to cool down the water in the boiler)
Auxiliary
output
Time
0
1
85°C
T1
Boiler
Alarm
Central
heating
pump
40°C
F15
Cold water
5.4. Domestic hot water circuit circulating pump with an external alarm control system.
T1
Alarm
D.h.w. Pump
F15
F11±F12
Main
output
Time
Time
Temp.
0
1
Functions performed by the controller in the system:
–domestic hot water circulating pump control
–external acoustic signaller control
–system protection from overheating
Tips for parameters programming:
F10 = 0 (T1 boiler temperature measurement)
F11 = boiler temperature setting, for example 60 °C
F12 = pump switching hysteresis, for example 0.1 °C
F15 = high temperature alarm, for example 85 °C
F16 = OFF; F17 = 0.1; F21 = 0
F29 = HEATING (pump works until the temperature is
reached)
F50 = 0 or 2 (2 – if you used an external safety thermostat
STB connected to the D1 input)
F51 = 1 (sound signaller active)
F52 = 1 (when high temperature alarm occurs, the pumps
is switched on)
Auxiliary
output
85°C
60°C
Time
0
1
Boiler
5.5. Solar collector with an external alarm control system .
T1
Cp
T2
Alarm
F12=2°C
F12=2°C
6°C
8°C
Main
output
Time
Time
0
1
10°C
Functions performed by the controller in the system:
–collector pump control
–external acoustic signaller control
–boiler protection against overheating
Tips for parameters programming:
F10=1 (boiler T1 and collector T2 temperature
measurement)
F11=temperature difference T2-T1 between the solar
collector and the boiler after reaching
that, the collector's pump switches on, for example 8 °C
F12=pump switching hysteresis, for example 2 °C
F15=boiler overheating alarm, for example 85 °C
F16=OFF; F17 = 0.1; F21 = 0, F29 = COOL; F50 = 0
F51=1 (sound signaller active)
F52=0 (when the boiler overheating alarm occurs, pump is
turned off so as not to collect a hot factor from the
collector)
Auxiliary
output
Time
0
1
T2-T1
When T1>F15
F11
5.6. Fireplace with water jacket control system.
Functions performed by the controller in the system:
- fireplace pump control
- central heating circulating pump control.
Tips for parameters programming:
F10=1 (boiler T1 and fireplace T2 temp. measurement)
F11=setting specifying the fireplace temperature growth in
relation to the boiler temperature so that the fireplace pump
switches on, for example 8 °C
F12=fireplace pump switching hysteresis, for example 2 °C
F15=set water temperature in the boiler. Loading the
domestic hot water boiler using the fireplace pump is a
priority, so that only after reaching this setting, the central
heating pump switches on, for example 60 °C
F16=OFF; F17=0.1; F21=0; F29=COOL; F50=0; F51=0
F52 = 0 (when the central heating pump switches on,
fireplace pump is switched off)
F12=2°C
F12=2°C
6°C
8°C F11
Main
output
Time
Time
Temp.
0
1
10°C
Auxiliary
output When T1<F16
Time
0
1
T2-T1
SC-20
T1 - boiler temperature sensor
T2 - fireplace temperature sensor
Collector pump and c.h. pump max. 400W 230V~ Power supply
230V~
20(8)A 8(2)A
T2 Pc Pch
131415161211
Temp
M
set
M
set
M
set
SC-20
T1 - boiler temperature sensor
T2 - collector temperature sensor
Collector pump Pk and signaller max. 400W 230V~ Power supply
230V~
20(8)A 8(2)A
Alarm
T2 Pc
131415161211
SC-20
T1 - main temperature sensor
D1 - external safety thermostat STB
Pompa Pdhw i signaller max. 400W 230V~ Power supply
230V~
20(8)A 8(2)A
Alarm
Thermostat
STB Pdhw
131415161211
SC-20
T1 - main temperature sensor
D1 - external temperature sensor STB
Pump Pch and signaller max. 400W 230V~ Power supply
230V~
20(8)A 8(2)A
Alarm
Thermostat
STB Pch
131415161211
Pch
Pc Cold
Water
T2
FIREPLACE
T1
M
set