Lumel re72 series User manual

CONTROLLER 48x48mm
RE72 TYPE
USER’S MANUAL
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RE72-09B User’s Manual 2
CONTENTS:
1. APPLICATION...............................................................................................................3
2. CONTROLLER SET......................................................................................................3
3. BASIC REQUIREMENTS, OPERATIONAL SAFETY....................................................4
4. INSTALLATION.............................................................................................................4
4.1. Controller Installation.....................................................................................................4
4.2. Electrical Connections...................................................................................................5
4.3. Installation Recommendations.......................................................................................7
5. STARTING TO WORK ..................................................................................................7
6. SERVICE.......................................................................................................................9
6.1. Programming Controller Parameters...........................................................................10
6.2. Programming Matrix....................................................................................................11
6.3. Setting Change............................................................................................................12
6.4. Parameter Description.................................................................................................12
7. CONTROLLER INPUTS AND OUTPUTS ...................................................................19
7.1. Main Measuring Inputs................................................................................................19
7.2. Additional Measuring Inputs ........................................................................................20
7.3. Binary Inputs................................................................................................................20
7.4. Outputs........................................................................................................................20
8. CONTROL...................................................................................................................21
8.1. ON-OFF Control..........................................................................................................21
8.2. Innovative SMART PID Algorithm................................................................................21
8.3. Stepper control............................................................................................................24
8.4. “Gain Scheduling” Function.........................................................................................24
8.5. Control of Heating-cooling Type..................................................................................25
9. ALARMS......................................................................................................................26
10. TIMER FUNCTION......................................................................................................26
11. CURRENT TRANSFORMER INPUT...........................................................................27
12. ADDITIONAL FUNCTIONS.........................................................................................28
12.1. Control Signal Monitoring .........................................................................................28
12.2. Manual Control.........................................................................................................28
12.3. Signal Retransmission..............................................................................................28
12.4. Set Point Change Rate – Soft Start..........................................................................29
12.5. Digital Filter...............................................................................................................29
12.6. Manufacturer’s Settings............................................................................................30
13. PROGRAMMING CONTROL......................................................................................30
13.1. Description of Programming Control Parameters.....................................................30
13.2. Definition of Set Point Value Programs. ...................................................................32
13.3. Control of the Set Point Value Program....................................................................34
14. RS-485 INTERFACE WITH MODBUS PROTOCOL...................................................36
14.1. Introduction...............................................................................................................36
14.2. Error Codes..............................................................................................................36
14.3. Register Map............................................................................................................36
15. SOFTWARE UPDATING.............................................................................................46
16. ERROR SIGNALING...................................................................................................47
17. TECHNICAL DATA......................................................................................................48
18. CONTROLLER VERSION CODES .............................................................................50
19. MAINTENANCE AND GUARANTEE...........................................................................51
(programm version 2.00)
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RE72-09B User’s Manual 3
1. APPLICATION
The RE72 controller is destined for the temperature control in plastics, food, dehydration industries and
everywhere when the temperature change stabilization is necessary.
The measuring input is universal for resistance thermometers (RTD), thermocouple sensors (TC), or
for linear standard signals.
The controller has three outputs enabling the two-step control, step-by-step three-step control, three-
step control of heating-cooling type and alarm signaling. The two-step control is acc. to the PID or
ON-OFF algorithm.
The innovative SMART PID algorithm has been implemented in the controller.
2. CONTROLLER SET
1
5
RE72
2
3
4
The delivered controller set is composed of:
▪RE72 controller 1 pc
▪Plug with 6 screw terminals 1 pc
▪Plug with 8 screw terminals 1 pc
▪Screw clamp to fix the controller in the panel 4 pcs
▪Seal 1 pc
▪User’s manual 1 pc
▪Guarantee card 1 pc
When unpacking the controller, please check whether the type and version code on the data plate
correspond to the order.
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RE72-09B User’s Manual 4
3. BASIC REQUIREMENTS, OPERATIONAL SAFETY
In the safety service scope, the controller meets to requirements of the EN 61010-1 standard.
Observations Concerning the Operational Safety
▪All operations concerning transport, installation, and commissioning as well as
maintenance, must be carried out by qualified, skilled personnel, and national
regulations for the prevention of accidents must be observed.
▪Before switching the controller on, one must check the correctness of connections
to the network.
▪Do not connect the controller to the network through an autotransformer.
▪The removal of the controller casing during the guarantee contract period may cause its
cancellation.
▪The controller fulfills requirements related to electromagnetic compatibility in the
industrial environment
▪When connecting the supply, one must remember that a switch or a circuit-breaker should
be installed in the room. This switch should be located near the device, easy
accessible by the operator, and suitably marked as an element switching the controller off.
▪Non-authorized removal of the casing, inappropriate use, incorrect
installation or operation, create the risk of injury to personnel or meter damage.
For more detailed information, please study the User’s Manual.
4. INSTALLATION
4.1. Controller Installation
Fix the controller in the panel, which the thickness should not exceed 15 mm, by means of four screw
clamps acc. to the fig. 1.
The panel cut-out should have 45+0.6 x 45+0.6 mm
1
2
Fig.1 Controller fixing in the panel
Controller overall dimensions are presented on the fig. 2.
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RE72-09B User’s Manual 5
70
8
max. 93
max.15
48
48
Fig. 2. Controller dimensions.
4.2. Electrical Connections
The controller has two separable terminal strips with screw terminals. One strip enables to
connect the supply and outputs by a wire of 2.5 mm2 cross-section. The second strip enables
to connect input signals by a wire of 1.5 mm2cross-section.
Fig. 3. View of controller connecting strips
zasilanie
13
14
Fig. 4. Supply
RS-485 interface
output 3/binary input/
supply of transducers 24 V
Input
signals
output 1
output 2
supply
supply
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RE72-09B User’s Manual 6
3
2
1
zwora
Pt100
3
2
1
Pt100
3
2
1
zwora
Pt1000
RTD Pt100 in two-wire
system RTD Pt100 in 3-wire system RTD Pt1000
3
2
+
-
zwora
3
4
2
+
-
0/4...20 mA
3
1
2
+
-
0...5/10 V
Thermocouple Current input 0/4..20mA Voltage input 0..5/10V
Fig. 5. Input signals
Fig. 6. Additional input signal
Output 1, 2 – relay Output 1, 2 – voltage 0/5 V
Output 1, 2 – continuous current 0/4...20 mA Output 1, 2 – continuous voltage 0...5/10 V
Output 3 – relay
Fig. 7. Control outputs/ alarming
6
5
Fig. 8. Binary input
5
6
-
+
0/4...20 mA
jumper jumper
jumper
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RE72-09B User’s Manual 7
Fig. 9. Current transformer input
8
7
B (-)
A (+)
RS-485
Fig. 10. RS-485 Interface
6
5
+
-
Fig. 11. Supply of 24V transducers
4.3. Installation Recommendations
In order to obtain a full fastness against electromagnetic noise, it is recommended to observe following
principles:
-do not supply the controller from the network in the proximity of devices generating high pulse
noise and do not apply common earth circuits,
-apply network filters,
-wires leading measuring signals should be twisted in pairs, and for resistance sensors in 3-wire
connection, twisted of wires of the same length, cross-section and resistance, and led in a shield
as above,
-all shields should be one-side earthed or connected to the protection wire, the nearest possible to
the controller,
-apply the general principle, that wires leading different signals should be led at the maximal
distance between them ( no less than 30 cm), and the crossing of these groups of wires made at
right angle (90º).
5. STARTING TO WORK
After turning the supply on, the controller carries out the display test, displays the re72
re72 re72
re72 inscription,
the program version and next, displays measured and set point values.
A character message informing about abnormalities may appear on the display (table 18).
The PID control algorithm with the proportional range 30ºC, integration time constant of 300 seconds,
differentiation time constant of 60 seconds and pulse period of 20 seconds is set by the manufacturer.
Changing the Set Point Value
One can change the set point value by pressing the ? or the > push-button (fig. 12). The
beginning of change is signaled by the flickering dot of the lower display. One must accept the new set
point value by pressing the @ push-button during 30 seconds since the last pressure of the ? or
> push-button. In the contrary, the old value will be restored. The change limitation is set by
parameters spl and spH.
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RE72-09B User’s Manual 8
Fig. 12. Fast change of set point value
To change the set point value Press one of the push-button
Signaling
the change
Change
acceptation
Set point
value
Measured
value
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RE72-09B User’s Manual 9
6. SERVICE
The controller service is presented on the fig. 13
Fig. 13. Menu of controller service
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RE72-09B User’s Manual 10
6.1. Programming Controller Parameters
The pressure and holding down the @ push-button during ca 2 sec. causes the entry in the
programming matrix. The programming matrix can be protected by an access code. In case when
giving a wrong value of the code, it is only possible to see settings through – without the possibility of
changes.
The fig 14. presents the transition matrix in the programming mode. The transition between levels is
carrying out by means of ? and > push-buttons and the level selection by means of the @
push-button.
After selecting the level, the transition between parameters is carried out by means of ? and >
push-buttons. In order to change the parameter setting, one must proceed acc. to the section 6.3. In
order to exit from the selected level, one must transit between parameters until the symbol [. . .]
appears and press the @ push-button.
In order to exit from the programming matrix to the normal working mode, one must transit between
levels until the symbol [. . .] appears and press the @ push-button.
Some controller parameters can be invisible – it depends on the current configuration.
The table 1 includes the description of parameters. The return to the normal working mode follows
automatically after 30 seconds since the last push-button pressure.
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RE72-09B User’s Manual 11
6.2. Programming Matrix
Fig. 14. Programming matrix
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RE72-09B User’s Manual 12
6.3. Setting Change
The change of the parameter setting begins after pressing the @ push-button during the display of
the parameter name. The setting selection is carried out through ? and > push-buttons, and
accepted by the @ push-button. The change cancellation follows after the simultaneous pressing of
? and > push-buttons or automatically after 30 sec since the last push-button pressure.
The way to change the setting is shown on the fig. 15.
rozpoczęcie
zmian anulowanie
zmian
zwiększenie
wartości
zmniejszenie
wartości
akceptacja
zmian
+
rozpoczęcie
zmian anulowanie
zmian
następny
parametr
poprzedni
parametr
akceptacja
zmian
+
Fig. 15. Change of number and text parameter settings
6.4. Parameter Description
The list of parameters in the menu is presented in the table 1.
List of configuration parameters Table 1
Parameter symbol
Parameter description Manufacturer
setting
Range of parameter
changes
sensors Linear input
inp – Input parameters
unit Unit qC
qC: Celsius degrees
qf: Fahrenheit degrees
pU: physical units
iNty Kind of main input pt1
pt1: Pt100
pt10: Pt1000
t-,: thermocouple of J type
t-t thermocouple of T type
t-k: thermocouple of K type
t-s: thermocouple of S type
t-r: thermocouple of R type
t-b: thermocouple of B type
t-e: thermocouple of E type
t-n: thermocouple of N type
t-l: thermocouple of N type
0-20: linear current 0-20mA
4-20: linear current 4-20mA
0-5: linear voltage 0-5 V
0-10: linear voltage 0-10 V
dp Position of the main input
decimal point 1-dp
0 dp: without
decimal
point
1 dp: 1
decimal
place
0 dp: without
decimal
point
1 dp: 1
decimal
place
2 dp: 2
decimal
place
Beginning of
changes
Value
decreasing Value
increasing
Beginning of
changes
Cancellation
of changes
Acceptation
of changes
Cancellation
of changes
Acceptation
of changes
Previous
parameter Next
parameter
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RE72-09B User’s Manual 13
Parameter symbol
Parameter description Manufacturer
setting
Range of parameter
changes
sensors Linear input
iNlo Indication for the lower
threshold of the linear main
input 0.0 - -1999…9999 1)
iNHi Indication for the upper
threshold of the linear main
input 100.0 - -1999…9999 1)
sHif measured value shift of the
main input 0.0 °C -100.0…100.0 °C
(-
180.0…180.0 °F)
-999…999 1)
i#ty Kind of the auxiliary input 4-20 0-20: linear current 0-20mA
4-20: linear current 4-20mA
dp2 Position of the decimal point 1-dp -
0 dp: without
decimal
place
1 dp: 1
decimal
place
2 dp: 2
decimal
place
i#lo Indication for the lower
threshold of the auxiliary
linear input 0.0 - -1999…9999 1)
i#Hi Indication for the upper
threshold of the auxiliary
linear input 100.0 - -1999…9999 1)
filt Time constant of the filter !2
off: filter disabled
!2: time constant 0.2 s
!5: time constant 0.5 s
1: time constant 1 s
2: time constant 2 s
5: time constant 5 s
10: time constant 10 s
20: time constant 20 s
50: time constant 50 s
100: time constant 100 s
bNin Binary input function none
none: none
stop: control stop
Hand: switching into manual
working
sp2: switching SP1 into SP2
rSat: erasing of timer alarm
Psta: program start
Pnst: jump to the next segment
PHld: stopping to count the set
point in the program
outp – Output parameters
out1 Function of output 1 y
off: without function
y: control signal
Y0p: control signal for the
stepper control – opening
YCl:
control signal for the stepper
control - closing
Cool: control signal - cooling
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RE72-09B User’s Manual 14
Parameter symbol
Parameter description Manufacturer
setting
Range of parameter
changes
sensors Linear input
AHi: upper absolute alarm
Alo: lower absolute alarm
dwHi: upper relative alarm
dwlo: lower relative alarm
dwin: inner relative alarm
dwou: outer relative alarm
aLtr: timer alarm
retr: retransmission
eu1: auxiliary output for the
program-following control
eu2: auxiliary output for the
program-following control
o"ty Output type 1 4-20 2)
rely: relay output
ssr: voltage output 0/5 V
4-20: continuous current output
4 – 20 mA
0-20: continuous current output
0 – 20 mA
0-5: continuous voltage output
0 – 5 V
0-10: continuous voltage output
0 – 10 V
out2 Function of output 2 off
off: without function
y: control signal
Y0p: control signal of stepper
control – opening
YCl: control signal of stepper
control – closing
Cool: control signal - cooling
AHi : absolute upper alarm
Alo: absolute lower alarm
dwHi: relative upper alarm
dwlo relative : lower alarm
dwin: inner relative alarm
dwou: outer relative alarm
aLtr: timer alarm
aLhb heater damage alarm
aLos: controlling element
damage alarm (short circuit)
retr: retransmission
eu1: auxiliary output for the
program-following control
eu2: auxiliary output for the
program-following control
o#ty output type 2 4-20 2)
rely: relay output
ssr: voltage output 0/5 V
4-20: current continuous output
4 – 20 mA
0-20: current continuous output
0 – 20 mA
0-5: voltage continuous output
0 – 5 V
0-10: voltage continuous output
0 – 10 V
out3 Function of output 3 off off: without function
y: control signal
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RE72-09B User’s Manual 15
Parameter symbol
Parameter description Manufacturer
setting
Range of parameter
changes
sensors Linear input
Y0p: control signal of stepper
control – opening
YCl: control signal of stepper
control – closing
Cool: control signal - cooling
AHi: absolute upper alarm
Alo: absolute lower alarm
dwHi: relative upper alarm
dwlo: relative lower alarm
dwin: inner relative alarm
dwou: outer relative alarm
aLtr: timer alarm
aLhb heater damage alarm
aLos: controlling element
damage alarm (short-
circuit)
eu1: auxiliary output for the
program-following control
eu2: auxiliary output for the
program-following control
Yfl Control signal of control
output for proportional control
in case of the sensor
damage. 0.0 0.0…100.0
to1 Pulse period of output 1 20.0 s 0.5…99.9 s
to2 Pulse period of output 2 20.0 s 0.5…99.9 s
to3 Pulse period of output 3 20.0 s 0.5…99.9 s
ctrl – Control parameters
alg Control algorithm pid
oNof
: control algorithm on-off
pid: control algorithm PID
type Kind of control inu
dir
: direct control (cooling)
inu: reverse control
(heating)
Hy Hysteresis 1.1 °C 0.2…100.0 °C
(0.2…180.0 °F)
Hn Displacement zone for
heating-cooling control or
dead zone for stepper control.
10.0 °C 0.0…100.0 °C
(0.0…180.0 °F)
0…999 1)
Gty “Gain Scheduling “ function off
o
f
f
: disabled
sp: from set point value
set:constant PID set
Gsnb Number of PID sets for “Gain
Scheduling” from the set point
value 2
2
: 2 PID sets
3: 3 PID sets
4: 4 PID sets
Gl12 Switching level for PID1 and
PID2 sets 0.0 MIN…MAX 3)
Gl23 Switching level for PID2 and
PID3 sets 0.0 MIN…MAX 3)
Gl34 Switching level for PID3 and
PID4 sets 0.0 MIN…MAX 3)
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RE72-09B User’s Manual 16
Parameter symbol
Parameter description Manufacturer
setting
Range of parameter
changes
sensors Linear input
Gset Selection of the constant PID
set pid1
p
id
1
: PID1 set
pid2: PID2 set
pid3: PID3 set
pid4: PID4 set
sTlo Lower threshold for auto-
tuning 0.0 ºC MIN…MAX 3)
sTHi Upper threshold for auto-
tuning 800.0 ºC MIN…MAX 3)
fdb Stepper control algorithm type
no
no
:algorithm without feedback
yes:algorithm with feedback
pid – PID parameters
pid1
pb
Proportional band 30.0 °C 0.1…550.0 °C
(0.1…990.0 °F)
ti
Integration time constant 300 s 0…9999 s
td
Differentiation time constant 60.0 s 0.0…2500 s
y0 Correction of the control
signal, for P or PD control
type 0.0 % 0…100.0 %
pid2
pb2
ti2
td2
y02
Second set of PID parameters
as PB, TI, TD, Y0
pid3
pb3
ti3
td3
y03
Third set of PID parameters as PB, TI, TD, Y0
pid4
pb4
ti4
td4
y04
Fourth set of PID parameters as PB, TI, TD, Y0
pidC
pbC
Proportional band for the
cooling channel (in relation to
PB) 100 % 0.1...200 %
tiC
Integration time constant 300 s 0…9999 s
tdC
Differentiation time constant 60.0 s 0.0…2500 s
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RE72-09B User’s Manual 17
alar – Alarm parameters
a"sp Set point value for absolute
alarm1 100.0 MIN…MAX 3)
a"du Deviation from the set point
value for relative alarm 1 0.0 °C -200.0…200.0 °C
(-360.0…360.0 °F)
a"Hy Hysteresis for alarm 1 2.0 °C 0.2…100.0 °C
(0.2…180.0 °F)
a"lt Memory of alarm 1 off Off:disabled
on: enabled
a#sp Set point value for absolute
alarm 2 100.0 MIN…MAX 3)
a#du Deviation from the set point
value for relative alarm 2 0.0 °C -200.0…200.0 °C
(-360.0…360.0 °F)
a#Hy Hysteresis for alarm 2 2.0 °C 0.2…100.0 °C
(0.2…180.0 °F)
a#lt Memory of alarm 2 off off: disabled
on: enabled
a$sp Set point value for absolute
alarm 3 100.0 °C MIN…MAX 3)
a$du Deviation from the set point
value for relative alarm 3 0.0 °C -200,0…200,0 °C
(-360.0…360.0 °F)
a$Hy Hysteresis for alarm 3 2.0 °C 0.2…100.0 °C
(0.2…180.0 °F)
a$lt Memory of alarm 3 off off: disabled
on: enabled
hBsp Set point for the heater
damage alarm 0.0 A 0.0…50.0 A
hBHy Hysteresis for the heater
damage alarm 0.1 A 0.0…50.0 A
oSsp Set point for the controlling
element damage alarm
(short-circuit) 0.0 A 0.0…50.0 A
oSHy Hysteresis for the controlling
element damage alarm
(short-circuit) 0.1 A 0.1…50.0 A
spp – Set point value parameters
sPmd Kind of set point value sp"2
sp"2: set point value SP1 or SP2
Rmin: set point value with soft
start in units per minute
RHr: set point value with soft
start in units per hour
in2: set point value from the
additional input
prg: set point value from
programming control
/prg Program No to carry out 1 1…15
sp1 Set point value SP1 0.0 °C MIN…MAX 3)
sp2 Set point value SP2 0.0 °C MIN…MAX 3)
sp3 Set point value SP3 0.0 °C MIN…MAX 3)
sp4 Set point value SP4 0.0 °C MIN…MAX 3)
spl Lower limitation of the fast
set point value change -200 °C MIN…MAX 3)
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RE72-09B User’s Manual 18
Parameter symbol
Parameter description Manufacturer
setting
Range of parameter
changes
sensors Linear input
spH Upper limitation of the fast
set point value change 1767.0 °C MIN…MAX 3)
sPrr Accretion rate of the set point
value SP1 or SP2 during the
soft start .
0.0 °C 0…999.9 /
time unit 4) 0…9999 1) / time unit 4)
prg – Programming control parameters
The description of parameters is in the section: Programming control – table 5
inte – Serial interface parameters
addr Device address 1 1…247
baud Transmission rate *6
%8: 4800 bit/s
*6: 9600 bit/s
1*2: 19200 bit/s
3)4: 38400 bit/s
5(6: 57600 bit/s
prot Protocol r8n2
none:lack
r8n2:RTU 8N2
r8e1:RTU 8E1
r8o1:RTU 8O1
r8n1: RTU 8N1
retr – Retransmission parameters
aOfn Quantity retransmitted on
the continuous output pu
pu:measured value on the
main
input PV
pu2:measured value on the
additional input PV2
p1-2:measured value PV – PV2
p2-1:measured value PV2 – PV
sp: set point value
du: control deviation (set point
value – measured value)
aOlo Lower threshold of the signal
to retransmit 0.0 MIN…MAX 3)
aOHi Upper threshold of the signal
to retransmit 100.0 MIN…MAX 3)
serp – Service parameters
seCU Access code to the menu 0 0…9999
sTfn Auto-tuning function on off: locked
on: available
timr timer function off
off:disabled
on:enabled
time Counting off the time by the
timer 30.0 min 0.1…999.9 min
Di2 Monitoring of the auxiliary
input off off:disabled
on:enabled
DCt Monitoring of the heater
current off off:disabled
on:enabled
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RE72-09B User’s Manual 19
Parameter symbol
Parameter description Manufacturer
setting
Range of parameter
changes
sensors Linear input
tout Time of the automatic output
from
the monitoring mode 30 s 0…9999 s
1) The definition at which the given parameter is shown depends on the parameter dp
dpdp
dp – position of the decimal
point.
2) For the output 0/4…20 mA, parameter to write, for other cases, to readout – acc. to the version code.
3) See table 2.
4) Time unit defined by the parameter spmd (Rmin, RHr).
Caution!
The accessibility of parameters depends on the controller version and its current settings.
Parameters depended on the measuring range Table 2
Symbol Input/ sensor MIN MAX
pt1 Resistance thermometer Pt100 -200 °C
(-328 °F) 850 °C (1562 °F)
pt10 Resistance thermometer Pt1000 -200 °C
(-328 °F) 850 °C (1562 °F)
t-, Thermocouple of J type -100 °C
(-148 °F) 1200 °C (2192 °F)
t-t Thermocouple of T type -100 °C
(-148 °F) 400 °C (752 °F)
t-k Thermocouple of K type -100 °C
(-148 °F) 1372 °C (2501,6 °F)
t-s Thermocouple of S type 0 °C
(32 °F) 1767 °C (3212,6 °F)
t-r Thermocouple of R type 0 °C
(32 °F) 1767 °C (3212,6 °F)
t-b Thermocouplke of B type 0 °C
(32 °F) 1767 °C (3212,6 °F)
t-e Thermocouple of E type -100 °C
(-148 °F) 1000 °C (1832 °F)
t-n Thermocouple of N type -100 °C
(-148 °F) 1300 °C (2372 °F)
t-l Thermocouple of L type -100 °C
(-148 °F) 800 °C (1472 °F)
0-20 Linear current 0-20mA -1999
1)
9999
1)
4-20 Linear current 4-20 mA -1999
1)
9999
1)
0-5 Linear voltage 0-5 V -1999
1)
9999
1)
0-10 Linear voltage 0-10 V -1999
1)
9999
1)
1). The definition at which the given parameter is shown depends on the parameter d p
dpdp
dp – position of the decimal
point.
7. CONTROLLER INPUTS AND OUTPUTS
7.1. Main Measuring Inputs
The main input is the source of measured value taking part in control and alarms.
The main input is an universal input, to which one can connect different types of sensors or
standard signals. The selection of the input signal type is made by the parameter iNty
iNty
iNty
iNty.
The position of the decimal point which defines the display format of the measured and the
set point value is set by the parameter dp
dpdp
dp. For linear inputs, one must set the indication for
the lower and upper analog input threshold iNlo
iNloiNlo
iNlo and iNHi
iNHiiNHi
iNHi.
The correction of the measured value indication is carried out by the parameter shif
shifshif
shif.
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RE72-09B User’s Manual 20
7.2. Additional Measuring Inputs
The additional input can be the source of remote set point value(sPmd
sPmdsPmd
sPmd set on in2
in2in2
in2) or the
signal for retransmission (aO
aOaO
aOfn
fnfn
fn set on pv2
pv2pv2
pv2).
The additional input is a linear input. The selection of the input signal type is possible between
0…20 mA and 4…20 mA by the parameter i#ty
i#tyi#ty
i#ty.
The position of decimal point which defines the display format of the measured and set point
value is set by the parameter dp2
dp2dp2
dp2. One must also set the indication for the lower and upper
analog input threshold i#lo
i#loi#lo
i#lo and i#Hi
i#Hii#Hi
i#Hi.
The signal from the additional input is displayed with the character „d
dd
d” on the first position. To
display the value, one must press the @ push-button till the moment of its appearance on
the lower display (acc. to the fig. 13.) The return to display the set point value is set by the
manufacturer for 30 sec, but it can be changed, or disabled through the parameter tout
touttout
tout.
7.3. Binary Inputs
The function of the binary input is set by the parameter bN
bNbN
bNi
ii
in
nn
n.
Following binary input functions are available:
- without function – the binary input state does not influence the controller operation,
- control stop – the control is interrupted , and control outputs are behaved as after a sensor
damage, alarm and retransmission operate independently,
- switching on manual operation – transition to the manual control mode’
- switching SP1 on SP2 – change of the set point value during the control,
- erasing of the timer alarm – disabling of the relay responsible for the timer alarm,
- program start – the programming control process begins (after a prior set of the
programming control),
- jump to the next segment – the transition to the next segment, follows during the duration
of programming control.
- stoppage to count the set point value in the program – the stoppage of set point value
counting follows during the duration of the programming control.
7.4. Outputs
The controller has maximal three outputs. Each of them can be configured as a control or an
alarm output.
For the proportional control (with the exception of analog outputs), the pulse period is
additionally set.
The pulse period is the time which goes by between successive switches of the output during
the proportional control. The length of the pulse period must be chosen depending on dynamic
object properties and suitably for the output device. For fast processes, it is recommended to
use SSR relays. The relay output is used to steer contactors in slow-changing processes.
The application of a high pulse period to steer slow-changing processes can give unwanted
effects in the shape of oscillations. In theory, lower the pulse period, better the control, but for
a relay output it can be as large as possible in order to prolong the relay life.
Recommendations concerning the pulse period: Table 3
output Pulse period to Load
Electromagnetic relay Recommended >20 s, min.10 s 2 A/230 V a.c.
Min. 5 s 1 A/230 V a.c.
Transistor output 1…3 sec SSR relay
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