sx75 series process controller - spirax sarco · controller from touching the selv (safe extra low...
TRANSCRIPT
3231350/3 Issue 3
Printed in the UK Copyright 2006
SX75 Series Process Controller
Installation and Maintenance Instructions
GENERAL INDEX
1. SAFETY INFORMATION ..................................... page 1PRODUCT OVERVIEW
2. FUNCTIONS OF KEYS AND DISPLAYS ........... page 3
3. DIMENSIONS INSTALLATION ............................ page 6
4. ELECTRICAL WIRING ........................................ page 7
5. PASSWORD PROTECTION ............................. page 15
6. PROGRAMMING INSTUCTIONSFUNCTIONS MENU CONFIGURATION
SETTING OF PARAMETERS (see enclosed leaflet)
7. OPERATING INSTUCTIONS (second leaflet)FUNCTIONS MENUCHANGING NUMERIC VALUESSET POINT - MODIFY
- RECALL- LOCAL / REMOTE OPERATION- AUTOMATIC / MANUAL OPERATION- TUNING - AUTOTUNE
8. EVENT OUTPUTS ............................................. page 16
9. OPERATING MODE .......................................... page 18
10.TECHNICAL DATA ............................................ page 19
1. SAFETY INFORMATION
All personnel using this product must carefully read this manual prior to operation.Your attention is drawn to Safety Information Leaflet IM-GCM-10.
If these controllers are handled improperly or not used as specified, the result may: cause danger to the life and limb of the user or a third party. damage to the controller and other items belonging to the owner. hinder the performance of the controller.
1.1 WIRING NOTES
1
Every effort has been made during the design of the controller to ensure the safety ofthe user, but the following precautions must be followed:
Maintenance personnel must be suitably qualified in working with equipmentcontaining hazardous live voltages.
Ensure correct installation. This Controller is designed for installation in an enclosurewhich provides adequate protection against electric shock. Local regulations regardingelectrical installation should be rigidly observed. Consideration should be givento prevention of access to the power terminationís by unauthorised personnel.Safety may be compromised if the installation of the product is not carried outas specified in this manual.
Isolate the Controller from the mains supply before opening the unit. The controller is designed as an installation category II product, and is reliant on the
building installation for over-current protection and primary isolation. Wiring should be carried out in accordance with IEC 364 or equivalent. Fuse rated at 0.5A/250V should be fitted in all phases of the Controllerís supply.
Fuses should not be fitted in the protective earth conductor. The integrity of theinstallation protective earth system must not be compromised by the disconnection orremoval of other equipment.
The Mains cable connections at the rear of the controller, must be retained in position(by tie wrapping Etc.). This will prevent the high voltage cables at the rear of thecontroller from touching the SELV (Safe Extra Low Voltage) connections, in theunlikely event of the terminals coming loose.
A disconnecting device (switch or circuit breaker) must be included in the buildinginstallation. This must be in close proximity to the equipment and within easy reachof the operator.There must be a 3mm contact separation in all poles.It must be marked as the disconnecting device for the controller.It must not interrupt the protective earth conductor.It must not be incorporated into a mains supply cord.The requirements for the disconnecting device are specified in IEC 947-1 andIEC 947-3 or equivalent.
The Controller must not be located in such a way that the disconnecting device ismade difficult to operate.
1.3 PRODUCT OVERVIEW
1.2 SAFETY REQUIREMENTS ANDELECTROMAGNETIC COMPATIBILITY NOTES
This product is CE marked. It conforms to the council directive 89/336/EEC and thedirective 92/31EEC, which modifies the directive 89/336/EEC (ElectromagneticCompatibility) by meeting the standards EN50081-2 (Industrial emission) and EN50082- 2(Industrial immunity). And the council directives 73/23/EEC (Low Voltage) as amendedby article 13 of the directive 93/68/EEC, by meeting the standard EN 61010-1.
This product may be exposed to interference above the limits of EN 50082-1 if:
The product or its wiring is located near a radio transmitter. Excessive electrical noise occurs on the mains supply. Cellular telephones and mobile radios may cause interference if used within
approximately three metre of the product or its wiring. The actual separationnecessary will vary according to the power of the transmitter.
AC power line protectors should be installed if mains supply noise is likely,Protectors can combine filtering , suppression, surge and spike arrestors.
2
The SX75 is a panel mounted microprocessor controllerhaving auto tune, 4 programmable set point control,universal inputs and outputs incorporating PID and fuzzylogic algorithms for close control of industrial processes.Type SX75+ additionally has re-transmit and serialcommunicators.
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2. FUNCTION OF KEYS AND DISPLAYS
8888____8888
(green)The value of measure X is expressed in engineeringunits.If value over rangeIf value under range- In parameters: displays parameter values- In configuration: displays the values of EFGH configuration code (see enclosed leaflet)
(green)Displays the operating Set point(Local or Remote)- In parameters: displays the parameter codes- In configuration: displays the values of ILMNconfiguration code (see enclosed leaflet)
(green) Displays the value of main output Y1 from 0...100%(from - 100 to 100% for Y1 with dual action)- In configuration: Displays Co
(green)Dispalys current set point number
----
Set Point Number
Output Y1
Set point W
Measured Value X
NUMERIC INDICATORS X, W, Y, N°
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Cablesection
wiresN°
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Schema di collegamento3 • Remote Set point input
Remote Set point mA, Volt
5
25
In current 4..20 mA
In voltage 0..10Vdc
Rin
Rin = 30 Ω per mARin = 330 KΩ per V
!NOT galvanically
isolated
COM
IL1
IL2
IL3
H C1
21
22
23
24
H C2
H C3
External contacts
Closing of contacts C1, C2, C3, fortwo seconds permits the selectionAUTO or MAN, Local or Remote Setpoint and recalling the 4 memorizedSet points
4 • Logic inputs
From 100Ω to 10KΩ max
5 • Input potentiometer position (Valve motor drive)
25
26
27
0%
100%
Totalstroke
Usefulstroke
0%
100%
See sec t ion 6 : Set t ing o fparameters and descriptionsref. Pot.1 on separate leaflet.
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Note:If the controller is configured as anON/OFF controller the whole group 2parameters will be occulted andreplaced by:
Hysteresis0.1 to 10.0% span
0:5
Baude Rate9600 *
148002240031200
600
0
4
ParityNone
1Odd2Even3None*
None*
0
4
UserUserUserModbusJbus
Protoc.
GROUP 1 - SETPOINTS
CONFIGURATION CODE
6•PROGRAMMING INSTRUCTIONS • SX75 SERIES CONTROLLERSGROUP 3 - ADVANCED FUNCTIONS
PARAMETERSFUNCTIONS MENU
Loop - Break - Alarm
0.…10 Vdc 9
Type of control action and safety position Y1(3)
0
1
2
3
4*5
Reverse Safety 0%
Direct 0%
100%
100%
-100%
-100%
H
*
(Yh)
(Yh)
(Yh2)
(Yh2)
Reverse
Reverse
Reverse
Direct
Direct
Direct
Direct
Safety
Safety
SafetySafety
SafetySafetySafetySafety
Safety
Conf
OffOff
Conf
(4)
(4)6
7
8
0 to 200 sec
CONFIGURATION
if not configured atthe power-up themain diplay will
show:
!
Entering the configurationprocess Follow
0 to 200 sec
Event Y2 type
0
1
2
3
4
5
6
7
8
IDisabled
Deviation withstartup inhibition
Active high
Active low
BandActive outside
Active inside
ProcessActive high
Active low
DeviationActive high
Active low
Type of control output Y1 (2)
Relay with time-proportioning 1
Logic 0/24 Vdc with time-proportioning 24…20 mAdc 30…10 Vdc
4
* 6
* 7
4…20 mAdc * 8
9
G
5Valve motor drive
Logic 0/24 Vdc with time-proportioning
Relay with time-proportioning
Reverse
9
0
1
2
3
Type of Set point N
Standard
1 Local
1 Local and Remote 4…20 mA
1 Local and Remote 0…10 Vdc
1 Local + 4 stored
Retransmission output Y4
0
1
2
3
4
5
6
MNone (5)
4…20 mA
Retransmission measurement X
Retransmission Set point W
Retransmission Y1
0…10Vdc(6)
Retransmission measurement X
Retransmission Set point W
Retransmission Y1 Cool
Event Y3 type
0
1
2
3
4
5
6
7
8
L
9
Disabled
Deviation withstartup inhibitor
Active high
Active low
BandActive outside
Active inside
Process
Deviation
Active high
Active high
Active low
Active low
1 stgroup2 nd group
Parameterprotection code
Visible and modificationVisible but NO MODIFICATION
NOT VISIBLE
Security Access
2
1
0
*
0Relay (On - Off with hysteresis
PARAMETERS DESCRIPTION
SerialcommunicationsSX75+ only User
GROUP 2 - CONTROL FUNCTIONS
Press F forgroup 3
Press F for normaloperation
To scroll through the menu, pressNormal Operation
Y
Run Auto - Tunefunction
Modify or viewParameters
Start ConfigurationProcedure
ViewSet point
ViewConfiguration code
View instrumentDevice number 0 … 63
First block of 4configuration code
E,F,G,HSecond block of 4configuration code
I,L,M,NYou can configure yourinstrument by entering the 8characters code
* Only for Heat-Cool applications
Enter correctPassword 1111
From configurationprocess
Error: return tonormal operation
Set pointlimit lowBeginning of the scale
Set pointlimit high
End of the scale
Maximum poweroutput (heat)10 to 100%100
100
Maximum poweroutput (cool)10 to 100%
0022
Security access forparameters (see note)0000 to 0022
Autotune function0 Disabled1 Enabled
0
For serial communicationSX75+ model only
3 Allowable event alarm set pointsdepend upon the type of alarmconfiguration• Deviation alarm : -300 to +300• Band alarm: 0 to 300• Independent: on full scale
4 Parameters Y2 and Y3 eventa larms wi l l not appear i fconfiguration codeI=0 (Y2) and L=0 (Y3)
Note: factory set parameters
DISPLAY
Measured Value
Set point
Functionmnemonic
during normaloperation
KEYS
Digit select
Increment value
Enter
Function
Function value duringprogramming
Input type, scale range (1)
-200…600°C 0 0
-200…600°C 0 2
-99.9...300,0°C 1 0
Conf -99,9...300.0°C 1 2
0...600°C 2 0
within 0...600°C 2 2
0...600°C 3 0
0...600°C 3 2
0...1200°C 4 0
0...1200°C 4 2
0...1600°C 5 0
0...1600°C 5 2
0...1600°C 6 0
0...1600°C 6 2
eng. units 7 4
eng. units 7 5
eng. units 7 6
eng. units 7 7
E F
RTDPt100IEC 751
Thermocouple JFe Cu 45%NiIEC 584
Thermocouple LFe-ConstDIN 43710
Thermocouple KCromel-AlumelIEC 584
Thermocouple SPt10%RhPtIEC 584
Thermocouple RPt13%RhPtIEC 584
4...20 mA
0...20 mA
0...1 Vdc
0...10 Vdc
Conf.
Conf.
Conf.
Conf.
Conf.
Conf.
Conf.
Conf.
Conf.
Conf.
Yes
Time constant ofthe input filter0 to 30 secs
Input shift-50 to 50 digit
0
0
1st Set point
10
2nd Set point
3rd Set point(See Note 1)
4th Set point(See Note 1)
Slope up between theSet point 0.0 to 100.0step/min. (see note 2)
20
30
40
Slope down duringtransition of the Set point0.0 to 100.0 step/min. (see note 2)
Y2 Event alarm setpoint(see note 3)
300
Y3 Event alarm setpoint (see note 3)
300
Y2 Hysteresisto 10.00% span
0:50
Y3 Hysteresis0.01 to 10.00% span
0:50
0:0
0:0
Note:1 Set points will only be shown if configuration code N=32 If slope gradient = 0
there will be a step change between set points
30
Cycling time Y2(only for heat/cool timeproportional output.)
Only for Heat/Cool controller(configuration G = 6 to 9)
for serial commsSX75+ only
Serial Communication statusenabled to write
If or is not pressed within 10 seconds the instrumentwill time-out back to the process variable.
Note:1
Enter correct password to startconfiguration process (3333 )
Return to normaloperation
Enter the first block of 4 configurationcodes -E, F, G, H
Number of decimal places EF (Appliesto configuration codes 74 to 87 only)
Configurable inputscale low value
YES
Enter the second block of 4 configurationcodes I, L, M, N
Configurable inputscale high value
For time proportional output
1:0
Dead band0.0 to 5.0% output
Only for valve motor driveoutput (configuration G = 5)
Minimum poweroutput (heat)0 to 100%0
during normaloperation
duringprogramming
QWtune
2
3
4
u
d
Y1 Safety( H = 6 or 7)
30
Cycling time Y1(only for time proportionaloutput.)
Calibratemaximumposition of valve
Acceptcalibration point
Acceptcalibration point
Calibrateminimumposition of valve
Calibratepotentiometerfeedback
The valve is drivento minimumposition
Valvemovementsensitivity0.1 to 10%
Time for fullvalve travel15 to 600 sec.
Y2 Event safetyaction0 = disab led1 = closed contact2 = open contact
Remote set point
0 = Remote1 = Remote + local
Remote Ratio—100 to 100
Remote Biassc.Io…sc.hi
if at the power-upyou see
9999 - 9999that means the instrument
IS NOT CONFIGURED
!
2
1
Fuzzy scaleamplitude0.5 to 999.9%
Fuzzy scale onchange on error0.10 to 99.99%
Time Sampling0 to 30 sec.(0 = 0.5 sec.)
Device Number0…63
0
Parity0 to 4 (see note 3)
1
Baud rate0 to 4 (see note 2)
SerialCommunicationsstatus0= OFF; 1= ON
Proportional band0.5 to 999.9%
5:0
Integral time0.0 to 100.0 minutes
1:0
Derivative time0.00 to 10.00 minutes
0:20
Fuzzy intensitity0.0 to 90.0%50
Proportionalband0.5 to 999.9%
5:0
Integral time0.0 to 100.0 min.
5:0
Derivative time0.0 to 10.00 min.
1:00
Fuzzy intensity0.0 to 90.0%
50
NOTES:5 For Pt100 and thermocouple inputs with configurable scale, it advised to select the largest range possible. The minimum span should be no less than 25% of the maximum range. Note: within the selected range, it is possible to limit the set point low and high limit settings (Spl l and Spl h). For mA and Volts inputs, low and high scale
values can be configured in engineering unitsbetween -999 and 9999. The minimum scale
span is 100 steps. The values can be expressed in units (xxxx), in tenth (xxx.x), hundredths (xx.xx), or thousandths x.xxx).
6 A switch located inside the controller provides selection of analogue outputs. See paragraph 4.6 of the IMI7 The safety state is the value assumed by Y1 in event of input signal failure it is the value defining the upper limit of Y1. Safety states with * (H-4) or (H-5) impose the maximum limit to Cool action.
8 Selecting H(6,7) it is possible to set the safety value assumed by parameter say 1 in event of an input signal failure.
9 Configuration code M applies to SX75+ models only.10 To change from 4...20 mA to 0...10V alter the jumper switch position.
1:0
Cool relative gain0.1 to 3.0
60
1:0
20:0
10:00
3
Y3 Event safetyaction0 = disab led1 = closed contact2 = open contact
sc.Io
10
0
0
Advance to group 3 parameters
OK
1
ERROR
°C - °F selection(Applies to EF configuration codes 00 to 62 only)0 =°C1 =°F
Y1 Safety( H = 6 ou 7)
Exiting the configuration process you will access group 3parameters to modify, if necessary, Set point limits,maximum power output etc…
F = 0 EF =74…87
F =2
8 4
8 5
8 6
8 7
4...20 mA
0...20 mA
0...1 Vdc
0...10 Vdc
Conf. eng. units with √Conf. eng. units with √Conf. eng. units with √Conf. eng. units with √
* Only for Heat-Cool applications
275.8275.8
4 50
s.p . t
tune
par.
Conf
Addr
4230
7500
Co
63
Addr
s.p. 2
s.p. 3
s.p. 4
s.p. 1
s1. u
s1. d
y25.p
y HYYy
y35.p
y3Hy
p.b.
t.i.
t.d.
f.1nt.
t.c.
t.c. 2
d.b.
rcr
p.b.
t.i.
t.d.
f.1nt.
t.y.
dy.
pot.1
pot.1
pot.h
pAss
A.par
A.tu.A.tu.
f.Err
f.der
t.san
s.C.1
Addr
s.C.b.r
s.p.r.1
s...p.l.1
s.p.r.2
s.p.r.3
yl.
yh.
yh. 2
t.fil
1n.5h
sa.y2
sa.y3
s.C.pa
0022
A.par2
pAss
Con.1
Con.2
C-f
sa.y1
sa.y1
sc.hi
sc.1o
sc.dd
4230
9999
9999
Co
Hy .
operation
7500
Co
0.01
Entering parameters
When configuration phase is com-pleted, the controller can display allthe parameters of functions that maybe entered to their desired values. Tosimplify the exercise the parametershave been divided into three groups .Group 1 covers the parameters re-lated to the set point. Group 2 coverscontrol parameters. The third group,which is protected by the password1111, are the advanced parameters.These include the security access,the fuzzy control parameters, the pa-rameters for the serial com-munication, all the limiting functionsand safety states functions.
First group of parameters
s.p. Stored set point 1 (N = 3)s.p. Stored set point 2 (N = 3)s.p. Stored set point 3 (N = 3)s.p. Stored set point 4 (N = 3)The memorised set points are the pre-set values for operation, recalledthrough logic inputs, serial transfer orthe front keyboard. When one of theseset values is recalled the small auxil-iary display on the front of the instru-ment shows the set number recalled. Rate of change for increase
of the main set point SP.Any new value of the main setpoint SP greater than that pre-viously entered set point willchange at the rate entered intothis parameter. The slope isexpressed in digits/minute.
Rate of change for decreaseof the main set point SP.Any new value of the main setpoint SP less than that previ-ously entered set point willchange at the rate entered intothis parameter The slope isexpressed in digits/minute.
y Set point of event output Y2(I = 1 to 8)
y Hysterisis of event output Y2(I = 1 to 8)Hysterisis is a zone within whichan output does not change andmaintains the state previouslyassumed. In order to obtain achange in the state of the meas-ured value X it is necessary togo outside this zone. The am-plitude of this hysterisis zone isexpressed as an amplitude %of the configured scale.
Set point of output event Y3(L = 1 to 8) See y2sp Hysterisis of output event Y3(L = 1 to 8) See y2hy
Second group of parameters
Hy Hysterisis of relay output Y1(G = 0)The hysterisis is a zone withinwhich an output does notchange and maintains the statepreviously assumed. In orderto obtain a change in the stateof variable X it is necessary togo outside this zone. The am-plitude of this hysterisis zone isexpressed as an amplitude %of the configured scale. Theoutput contacts are to be foundbetween terminals 16 and 17.
Proportional band (G = 1 to 9)The band within which themodulation of the output in di-rect proportion to the differencebetween the set point W andthe measured value. It is calcu-lated as a % of the input span.
Integral time (G = 1 to 9)This is the time used by a singleintegral action to repeat the pro-portional action. This action isexpressed in minutes.
Derivative time (G = 1 to 9)This is the time taken for asingle proportional action toattain the same level as the P+ D output. This action isexpressed in minutes.
Percentage intensity of fuzzyaction (G = 1 to 9).The main control output is com-posed of the sum of two controlalgorithms, Fuzzy and PID. Thisparameter permits the balanc-ing as a % of the proportion of thefuzzy algorithm in relation to thatof the PID. With most applica-tions the default value of 50%would be suitable.
Cycle time of the output Y1(G = 1,2,6,7)This parameter is expressed inseconds and defines the totaltime of the On/Off states of themain output Y1 modulated in %of the PID + Fuzzy algorithm.e.g. If Y1 = 20% and t.c. = 30”,the On state = 6” and that of theOff = 24”.If G = 1 or 6, the output relaycontacts are between terminals16 and 17.If G = 2 or 7, the logic output asa voltage is available betweenthe terminals 19(+) and 20(-).
Cycle time for “cooling out-put” Y1(G = 6 to 9 and M = <> 3, <> 6).This parameter is expressed inseconds and defines the totaltime of the On/Off states of thecold output Y1 modulated in %of algorithm PID + Fuzzy.e.g. If Y = -20% and tc2 = 30”,
the On state = 6” and that of the
Off = 24”.
The output relay contacts are
between the terminals 17 and
18.
The dead band between the
heating and cooling outputs
(G = 6 to 9)
If the variable X coincides with
the set point sp1 and the out-
put positions itself at 0% the
system will tend to pass con-
tinually between hot and cold
and vice versa. The param-
eter involved defines that the
command at the output of the
controller, whether it is hot or
cold, will only be forwarded if it
is greater than that written in
the same parameter.
Relative gain of the “cool-
ing” output (G = 6 to 9).
This is a parameter that deter-
mines the amplitude of the pro-
portional band of the cold with
respect to that of the hot:
= /
pbf = Proportional band out-
put Y1 “cold”
pb = Proportional band output
Y1 “hot”
Time for full valve travel (G = 5)
for VMD. This is the time used
(expressed in seconds) for the
control valve to travel from its
lower limit to its upper limit. As
a control algorithm of the “float-
ing” type, this parameter is fun-
damental to a correct position-
ing of the control valve.
Resolution of positioning or
dead zone (G = 5).
This parameter expressed in
actuator run %, defines the mini-
mum movement required for
the servomotor. All the com-
mands given by the control al-
gorithm with lower amplitudes
than the value written in the dy
parameter, will not be executed.
Procedure for calibration of
the feedback potentiometer.
Only for VMD control (G=5)
This calibration is performed if
the A/M button is pressed. When
the value on the display remains
steady the VMD control valve
has reached its lower run limit.
Pressing the A/M button again,
the controller stores the “0%”
position and drives the control
valve to its maximum position.
When the value on the display
remains steady the VMD control
valve has reached its upper limit.
Pressing the A/M button again,the controller stores the “100%”position. At this point the cali-bration operation is concludedand to terminate press the “>enter” button. During the cali-bration phase it is useful to timethe valve travel time for the typarameter.
Third group of parameters
Secuity access to parametergroupsThis function is used to set thelevel of access allowed forgroups 1 and 2.
- 0 Group not visible
- 1 Group visible, without anyfacility to modify parametercontents.
- 2 Group visible, with facilityto modify parameter contents.
Auto TuneWith this parameter the con-trollers autotune function canbe enabled or disabled. Onentering “0” the tuning functionis disabled and the “tune” pa-rameter is no longer availablein the main menu.
Span of fuzzy operational zone(G = 1 to 9)This parameter defines thezone of operation for the fuzzyalgorithm and is calculated in% of scale. The optimum valueof this zone can be calculatedusing the following formula : = 4 x
Fuzzy derivative (G = 1 to 9).This parameter defines thespeed of the process to be con-trolled. It is expressed as “ %scale/minute” and its optimumvalue can be calculated withthe formula : = 4 x /pb = Proportional band ex-pressed as a percentageti = Integral time expressedin minutes.
Sampling time (G = 1 to 9)This parameter determines thesampling time and is variablebetween 1 and 30 seconds max.The optimum sampling time isrelative to the speed of the proc-ess to be controlled and is givenby : = x 60 /
pb =Proportional band expressed in% of scale
ti =Integral time expressed in min-utes. This is automatically cal-culated during auto-tune.
Enable or disable serialcommunications (SX75+ only)
Recognition address of serialcommunication (SX75+ only)
Baud rate of serial communica-
tion (SX75+ only)
Parity control of serial commu-
nication (SX75 only)
These four parameters are re-lated to serial communication,they only appear during the set-ting up phase of the instrument(SX75+ only) and do not relateto the configuration.
Low limit value for the mainset point SP1
High limit value for the mainset point SP1
The main control set point sp1 mayonly be freely entered betweenthe two parameters spll andsplh.
Selects the operation of theRSP "Remote set point"(N = 1,2). The target set pointcan equal the RSP or the targetset point can equal the local setpoint offset by the RSP.
- 0 Target set point = remoteset point
- 1 Target set point = remoteset point + local set point
RSP Range This parameter isused to select the range for theremote set point (N=1,2).A value from -100 to +100 canbe entered. The value for SPr2is a percentage of the inputspan. A positive value will givedirect action to the RSP. Tocalculate the value for SPr2 usethe formula below.
SPr2 =
Input scale range is the valuefrom the lowest input scalevalue (Sclo) to the highest inputscale value (Schi). See RSPexample.
The datum point for the re-mote set point (N=1, 2) valuebetween Sclo and Schl can beentered. The value entered willrepresent the minimum RSPinput signal (0Vdc or 4mA), ie
the start point.
Low limit of output Y1 (G=1 to
4) from 0% to 100%. The value
entered into this paramenter
determines the lowest limit for
output Y1. The safety position
(configuration H) can override
this.
High limit of output Y1 (G= 1
to 9) from 0% to 100%. The
value entered into this param-
eter determines the highest limit
for the output Y1. The safety
position (Configuration H) can
override this.
High limit of output Y2 (G= 1
to 9) from 0% to 100%. The
value entered into this param-
eter determines the highest limit
for the output Y2. The safety
position (Configuration H) can
override this.
Input Filter This parameter can
be used to stabilize the meas-
ured value. The value entered in
this parameter defines the time
constant of the digital filter used
on the measured value X. Given
an instantaneous variation be-
tween 0% and 100%, measured
value X will reach 63.2% in the
time indicated in the parameter
.
The affect of the time constant
on the measured value X
Input Shift This parameter al-
lows the user to adjust the meas-
ured value reading. The value
entered in the parameter will be
used as the offset from the meas-
ured value. The settings are +/-
50 digits.
Safety state of event Y2
(l = 1 to 8)
If the measured value signal
fails, event output Y2 can be
set to:
- 0 Function excluded. Normal
operation of alarm respected.
- 1 Output held in the On state.
- 2 Output held in the Off state
Safety state of event Y3
(l = 1 to 8)
If the measured value signal
fails event output Y3 can be set
to:
- 0 Function excluded. Normal
operation of alarm respected.
- 1 Output held in the On state.
- 2 Output held in the Off state.
RSP rangeInput scale range
x 100
flyout_section.pmd 7/12/02, 4:43 PM1
SET POINTModify Set Point Procedure to recall a Set point from memory
CHANGING NUMERIC VALUES
TUNINGAUTO-TUNE
7 • OPERATING INSTRUCTIONS • SX75 SERIES CONTROLLERS
AUTOMATIC / MANUAL OPERATION
Local RemoteFUNCTIONS MENU
During normal operation
0 2 5 0
0 9
From normal operation (Auto mode)
From normal operation (Auto mode)
During normal operationDuring normal operation
From normal operation (Manual mode)
VariableX
OutputY1
Auto-Tune in operation
Ymax: 100% or yh
Ymin: 0%
Set point change or start up
Start Auto - Tune ProcessFuzzy parametershave been calculated
Set point W
Dev. > 5% span
To scrol l through , pressNormal Operation
F
To activate displayed set point press
Confirm modifiedSet point
Note:If a Remote Set point is selected, the instrumentwill store the Local Set point value this will bere-instated Local Set point mode is selected.
Note:After the Set point has been modified the new target Set point will be reached after a periodof time, depending upon the values entered in the sl.u (Slope up) and sl.d (Slope down)gradient parameters.When using Remote Set point we suggest, to set sl.u and/or sl.d to 0The target Set point can be viewed at any time from the function menu.
Target Set point
If slope gradient is equal to zero there will be a step change
Set point changed
Target Set point =350°
t t = 10 minutes
sI.u. = 10 digit / min.
Example
Initial Set point= 250°C
Set point valuewill flash
Least significantdigit will flash
The Set point maynow be modifiedas previouslyexplained
It is possible to modify any numeric value by changing each digit in
press to select the required digit.Each successive press of this button moves theflashing digit one place to the left.
Example: to change 250 to 260
Pressing increments the selected digit (for themost significant digit there is a - between 9 and 0)
Press to accept the value. The value displayedwill be accepted automatically after the 10 seconds.
Auto-tune should be used when the instrument is first installed to provide approximatevalues for the FUZZY algorithm, and calculation of proportional, integral and derivativeparameters.When the auto-tune cycle has been completed, the values for FUZZY (ferr; fder; t.san) willalso be adjusted automatically.It is possible to escape from the auto-tune procedure at any time by pressing any key.
The Auto-tune function is available if the following requirements are met:
1. Parameter A.tu = 12. The deviation between set point value and measured value of more than 5% of input spanNote• if the heat/cool facility is selected the
Auto-tune process will calculate the FUZZY parameters for both heat and cool.
Auto-Tune in operation
StartAuto-tuneprocess
To enter Manual mode
To enter Automatic mode
Enable remote Set pointThe REM indicator will,switch on
Enable localSet pointThe REM indicatorwill switch off
Set point valuewill flash
Modify Set point
Accept Set point 1 astarget Set point
Accept Set point 2 astarget Set point
Accept Set point 3 astarget Set point
Accept Set point 4 astarget Set point
Set point value willflash
Modify Set point
AUTO AUTO100% Set point W
W = X
YAUTO=YMAN
YMAN=YAUTO
modify Y
with
100% output Y
W (X) W
Y
Y
Y
0
0
MAN
X sI.u.
Remote Setpoint status
SerialCommunicationstatus
Auto-Tunestatus
Memory Setpoint Numberwindow
Auto/manualstatus
If or is not pressed within 10 seconds the instrumentwill time-out back to the normal display
Time out:
1
duringnormal operation
duringprogramming
DISPLAY
Measured value
Set point
Functionmnemonic
during normaloperation
KEYS
Digit select
Increment value
Edit Set point
Enter
Auto / Manual
Function
Function value duringprogramming
Note:The above Set points may be modified from the1st group within the parameter menu.
AT and MANwill bedisplayedwhen auto-tune is inoperation.
3
4
Run Auto - Tunefunction
Modify or viewParameters
Start ConfigurationProcedure
ViewSet point
ViewConfiguration code
View instrumentDevice number 0 … 63
For serial commsSX75+ model only
Serial Communication statusenabled to write
63
275.8275.8
504
tune
par.
Conf
Addr
Addr
Co
7500
4230
0250
0250
0260
250
0250
0260sp. 2
sp. 1
250
sp. 4
sp. 3
250
s.p.r.
s.p.1.
sp. t
Aan.
Auto
tune 275.8275.8
50
63
NOTE: THIS PROCEDURE WILL NOT WORKIF TERMINALS 21 & 24 (IL3) ARE LINKED
COMMISSIONING EXAMPLES
The following commissioning examples for the SX75 controller will provide guidance to commission similar applications.
Example 1. Pressure controlUsing an SX75 controller with a pressure transmitter monitoring system pressure, and the controller is providing a 4-20mA control signal tothe control valve.
Application requirements:• Pressure transmitter 0 to 25 barg, producing a 4 - 20 mA output signal.• Control Valve with Electric or Electro-pneumatic positioner accepting a 4 - 20 mA input signal.• Two Event alarms are required. Event Y2 set for active high process alarm at 22 bar. Event Y3 set for active outside band alarm set
at 5 bar.• This process requires only one set point. The local set point is 18 bar
Configuration code settings:
E F G H7 4 3 0
I L M N5 3 0 0
Configuration parameter settings:
Parameter Description Customer setValues
Sc.d.d Number of decimal places 1Sc.lo Input scale low value 0.0Sc.hi Input scale high value 25.0
Group1 Set point parameter settings:
Parameter Description Default Customer setValue Values
Sl. U Slope up between SP 0.0 0.0Sl. d Slope down between SP 0.0 0.0y2S.P Event Alarm 1set point 300 22.0y2Hy Event Alarm 1 Hysteresis 0.50 0.5y3S.P Event Alarm 2set point 300 5.0y3Hy Event Alarm 2 Hysteresis 0.50 0.5
Group 2 Control parameter settings:
Parameter Description Default Customer setValue Values
P.b. Proportional Band 5.0 20.0t.i. Integral time 1.0 0.3t.d. Derivative time 0.20 0.0F.Int. Fuzzy intensity 50 50
Group 3 Advanced parameter settings:
Parameter Description Default Customer setValue Values
A.Par Security access 0022 0022A.tu. Auto Tune enable 1 0F.Err Fuzzy scale 20.0 80F.der Fuzzy change on difference 10.00 99.99t.San Sampling time 3 0S.P.L.l Set point low limit see Sc.lo 0S.P.L.h Set point high limit see Sc.hi 20yL. Minimum power output 0 0yh. Maximum power output (heat) 100 100t.F iL Input filter time constant 0 0In.Sh Input Shift 0 0Sa.y2 Y2 Event safety Action 0 1Sa.y3 Y3 Event safety action 0 1
In the normal operating mode, adjust the local set point to 18 bar. Press
key, then press the key. Using the increment key
, and the digit select key change the set point to 18.
Note: For SX75+ models,the parameters “ S.C.I;Addr; S.C.b.r; S.C.Pa” forserial communication willbe present between t.Sanand S.P.L.l .
Example 2. Temperature controlUsing an SX75 controller with an RTD Pt100 sensor monitoring the system temperature. The controller provides a Valve Motor Driveoutput signal to the electric actuator. The actuator travel speed is 0.5mm/s, with a valve travel of 20mm.
Configuration Code and parameters:• Temperature sensor with an effective range from 0°C to 100°C.• Control Valve with Valve motor drive electric actuator.• Two Event alarms are required. Event Y2 set for active low process alarm set at 35°C. Event Y3 set for an active high deviation alarm
set at 10°C.• This process requires only two set points. Set point 1 = 40°C is the standby temperature. Set point 2 = 60°C is the control
temperature. (Note Set point’s 3 and 4 can be ignored)
Configuration code settings:
E F G H1 0 5 0
I L M N6 7 0 3
Configuration parameter settings:
Parameter Description Customer setValues
C_F °C or °F 0
Group1 Set point parameter settings:
Parameter Description Default Customer setValue Values
S.P. 1 Set point 1 10 40S.P. 2 Set point 2 20 60S.P. 3 Set point 3 30 N/AS.P. 4 Set point 4 40 N/ASl. U Slope up between SP 0.0 0.0Sl. d Slope down between SP 0.0 0.0y2S.P Event Alarm 1set point 300 35y2Hy Event Alarm 1 Hysteresis 0.50 0.5y3S.P Event Alarm 2set point 300 10y3Hy Event Alarm 2 Hysteresis 0.50 0.5
Group 2 Control parameter settings:
Parameter Description Default Customer setValue Values
P.b. Proportional Band 5.0 5.0t.i. Integral time 5.0 5.0t.d. Derivative time 1.00 1.00F.Int. Fuzzy intensity 50 50t.y Time for full valve travel 60 40dy. Valve movement sensitivity 1.0 1.0Pot. l Potentiometer Calibration N/A N/A
Group 3 Advanced parameter settings:
Parameter Description Default Customer setValue Values
A.Par Security access 0022 0022A.tu. Auto Tune enable 1 1F.Err Fuzzy scale 20.0 20F.der Fuzzy change on difference 10.00 4.00t.San Sampling time 3 15S.P.L.l Set point low limit see Sc.lo 0S.P.L.h Set point high limit see Sc.hi 80t.F iL Input filter time constant 0 0In.Sh Input Shift 0 0Sa.y2 Y2 Event safety Action 0 1Sa.y3 Y3 Event safety action 0 1
Note: For SX75+ models,the parameters “ S.C.I;Addr; S.C.b.r; S.C.Pa” forserial communication willbe present between t.Sanand S.P.L.l .
CONFIGURATION INSTRUCTIONS 4) Normal operating mode: The values in group 3 advanced parameters could be set now. However, it is recommended thatyou now proceed to the normal operating mode. This will provide access to the settings of Group 1 (Set point), Group 2 (Control), and Group3 (Advanced) parameters.
To proceed to normal operating mode press the function key
This will display the two groups of configuration codes that have
been set. After 10 seconds the display will time out and return to normal operating mode.
5) Modify a completed configuration code: To modify the set onfiguration code from the normal operating display,proceed as follows
Press repeatedly until the controller displays 'ConF' Press twice.
Using the increment key and the digit select key , enter the password 3333.
Press and follow procedure shown from 1a of this section.
Note: the controller will time out from the configuration back to the normal operatingmode, if a key is not pressed after 30 seconds.
Note: Before switching the power on, check that the controller is wired correctly(refer to section 4, Electrical wiring).On power up the controller will display
This indicates that the controller is not configured (the controller will not function without being configured). If it has been configured and youneed to change the configuration, see item 5 of this document.
To configure the controller two sets of code numbers must be entered into the controller. Configuration code group 1, EFGH (Con1), cover theinput type, the output type, and the control and safety action. Configuration code Group 2 ILMN (Con2), cover the event alarms, set point, plusre-transmission on SX75+ models.
Refer to the Configuration Code table, on the opposite side of this sheet to select the desired configuration settings. Selected codes should berecorded the "customer configuration and parameter record" sheet.
To enter the desired codes proceed as follows:
1) EFGH Configuration Code (Con1)Press the enter key . The controller will display
Adjustments can only be made if a digit of the code displayed is flashing. The flashing will time out after 30 seconds. To restart a flashing
display, press the key.
1a) H Code setting (Control action and safety position):The H code value will be flashing to prompt the user to select the desired value.
Press , to increment the displayed value. When the desired value is displayed, press to advance to G code setting.
1b) G Code setting (Control output type):The G code value will be flashing to prompt the user to select the desired value.
Press , to increment the displayed value. When the desired value is displayed, press to advance to F code setting.
1c) F Code setting (Input type and scale part 1):
The F code value will be flashing to prompt the user to select the desired value. Press , to increment the displayed value.
When the desired value is displayed, press to advance to E code setting.
1d) E Code setting (Input type and scale part 2):The E code value will be flashing to prompt the user to select the desired value.
Press , to increment the displayed value. To save the selected EFGH codes, press . You will now advance to configuration
code group 2 ILMN (Con2).
EF code setting value
G code setting value
H code setting value
Configuration code EFGH
2) ILMN Configuration Code (Con2)After the enter key is pressed, the display will show:
2a) N Code setting (Set point type):
The N code value will be flashing to prompt the user to select the desired value. Press , to increment the displayed value. When
the desired value is displayed, press to advance to M code setting.
2b) M Code setting (Retransmission output for SX75+ models):The M code value will be flashing to prompt the user to select the desired value.
Press , to increment the displayed value. When the desired value is displayed, press to advance to L code setting.
2c) L Code setting (Event alarm Y3):
The L code value will be flashing to prompt the user to select the desired value. Press , to increment the displayed value. When
the desired value is displayed, press to advance to I code setting.
2d) I Code setting (Event alarm Y2):
The I code value will be flashing to prompt the user to select the desired value. Press , to increment the displayed value.
To save the selected ILMN codes, press .
Note: You will now advance to setting the configuration parameters. See section 3 below.
3) Configuration ParametersNOTE: depending on the configuration codes previously set, some of the configuration parameters arenot applicable.
• C_F parameter is only shown for RTD and Thermocouples input ranges (Codes EF)• Scdd parmeter is only shown for mA/volt inputs types (Codes EF)• Sc.lo and Schi parameters are only shown for configurable input scales, Configuration code F = 2.• Sa.Y1 Safety action parameter is only shown when configuration code H=6 or H=7.
3a) "C_F" Celsius or Fahrenheit: Use the key to select 0 for °C or 1 for °F. Press the enter key to set the
desired scale.
3b) "Sc.dd" Decimal Places: Use the key to select 1, 2 or 3 decimal places. The default value is 1. Press the enter
key to select the desired value.
3c) "Sc.lo" Configurable input scale low value: This will set the low value for for the input scale. Use the increment key
, and the digit select key to enter the low input scale value. Press the enter key , to set the desired value.
3d) "Sc.hi" Configurable input scale high value: This will set the high value for the input scale. Use the increment key
, and the digit select key to enter the low input scale value. Press the enter key , to set the desired value.
NOTE:The above will not be shown if the input type selected has a fixed scale range. (ie. EF Code = 10,sets an RTD with a fixed range from -99.9 to 300.0)
3e) "SA.yl" Configurable safety position for the control output: Note this is only displayedwhen configuration code "H" is 6 or 7.
Using the increment key and the digit select key to modify the value for the required safety position.
Press the enter key to set the desired value. This now completes the setting of the configuration codes and configuration
parameters. The controller will advance to Group 3 of the advanced parameters. Please read below.
I code setting value
L code setting value
M code setting value
Configuration code ILMN
N code setting value
fluout_section6_today.pmd 7/12/02, 3:56 PM2
16
8. EVENT / ALARM OUTPUTS Y2 AND Y3
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9. OPERATING MODE
19
10. TECHNICAL DATA
Accuracy(a25°C amb.)
0.2% ± 1 digit (for input with RTD Pt100 and thermocouples)
0.1% ± 1 digit (for input in current and voltage)
Input "X"(configurable)
RTD Pt100 Pt100Ω @ 0°C, (IEC 751)
Withconfigurablescale field
Thermocouples J-K-S-R (IEC 584), L (DIN 43710)
Continuous current 4..20mA, 0..20mA, Ri 30Ω
Continuous voltage 0..1Vdc, 0..10Vdc, Ri 10KΩ
Auxiliaryinputs 3 of logic type (control of operating and Set point states)
Set point
1 Local + 4 storable
2 ramps for ascent anddescent gradient slope 0.1´100.0 digit/min.
Higher and lower limit from beginning to end of scale
Local/RemoteSet point
In current 4..20mA, Ri30Ω Not isolatedaccuracy:
0.1% at 25°C.In voltage 0..10Vdc, Ri 330kΩ
Controlactions
Algorithm On - Off, PID, FUZZY, PID with I and Dexcludable actions.
Proportional band (P) 0,5..999.9%
Integral action time (I) 0.1..100min., excluded
Derivative action time (D) 0.01..10min., excluded
Cycle time 1..200 sec. (for discontinuous control)
Hysteresis 0.1..10% (for on-off control)
Dead zone ± 0´5,0% for dual action (heat-cool)
Auto - Tune For automatic parameter adjustment (One shot)
Auto/ManStation
With bumpless action, AUTO/MAN transfer via keyboard, logic input and serialcommunication.
20
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10. TECHNICAL DATA