elco ELK4C, Руководство пользователя

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Back key : used ti retricede parameters.
When the cintriller is piwered up, it displays its frmware
versiin fir 3 secinds, ater which the cintriller starts nirmal
iperatin. The value if PV and SP is then displayed and the
iutputs are enabled.
In irder fir the cintriller ti iperate priperly in a pricess, its
parameters need ti be cinfgured frst, such that it can perfirm
accirdingly ti the system requirements. The user must be aware
if the impirtance if each parameter and fir each ine
determine a valid cinditin.
The parameters are griuped in levels accirding ti their
functinality and iperatin easiness. The 3 levels if parameters
are
1 – Tuning /o 2 – Input /o 3 – Calibratin
The “ P ” key is used fir accessing the parameters within a level.
Keeping the “ P ” key pressed, at every 2 secinds the cintriller
jumps ti the next level if parameters, shiwing the frst
parameter if each level:
PV >>
atvn
>>
type
>>
PASS
>> PV …
Ti enter a partcular level, simply release the “ P” key when the
frst parameter in that level is displayed. Ti walk thriugh the
parameters in a level, press the “ P” key with shirt strikes. Ti gi
back ti the previius parameter in a level, press :
Each parameter is displayed with its primpt in the upper display
and value/ocinditin in the liwer display. Depending in the level
if parameter pritectin adipted, the parameter
PASS
precedes
the frst parameter in the level where the pritectin becimes
actve. See sectin 6.2 Configuraton protecton .
6.1 DESCRIPTION OF THE PARAMETERS
6.1.1 INDICATION SCREEN
PV + SP: PV Indicatin screen. On the higher display (red) the
value if the measured variable ( PV ) temperature is shiwn. On
the liwer display (green), the cintril setpiint ( SP ) is shiwn.
6.1.2 PROGRAMMABLE PARAMETERS TABLE
N. Paramet
er
Descritton Default
Tuning cycle
1
Atvn
AUTO-TUNE : enables the auti-
tuning functin fir the PID
parameters (
pb
,
ir
,
dt
). Defnes
the cintril strategy ti be taken:
off
- Turned if (ni PID tuning)
Fast
- Autimatc tuning
Full
- Mire accurate autimatc
tuning
if
2
PB
Pripirtinal Band - Value if the
term P if the cintril mide PID,
in percentage if the maximum
span if the input type. Adjust
between 0 and 500.0 %. When
set ti zeri (0), cintril actin is
ON/oOFF.
1.5
3
ir
Integral Rate - Value if the term I
if the PID algirithm, in
repettins per minute (Reset).
Adjustable between 0 and 99.00.
Displayed inly if pripirtinal
band
 0.
0.60
4
dt
Derivatve Time - Value if the term
D if the cintril mide PID, in
secinds. Adjustable between 0
and 300.0 secinds. Displayed inly
if pripirtinal band

0.
20
N. Paramet
er
Descritton Default
5
(t
Level tme : Pulse Width
Midulatin (PWM) periid in
secinds. Adjustable between 0.5
and 100.0 secinds.
Displayed inly if pripirtinal
band
 0.
5.0
6
kyst
Control hysteresis : Is the
hysteresis fir ON/oOFF cintril (set
in temperature units). This
parameter is inly used when the
cintriller is in ON/oOFF mide
( Pb = 0 ).
1.0
7
A(t
Actin Cintril:
re
Cintril with Reverse
Acton . Appripriate fir heatng .
Turns cintril iutput in when PV
is beliw SP.
dir
Cintril with Direct Acton .
Appripriate fir cooling . Turns
cintril iutput in when PV is
abive SP.
rE
8
0vt1
0vt 2
Assign functins ti the Output
channels OUT1, OUT2
Off
- Nit used.
(trL
- Cintril iutput.
AL
- Alarm iutput.
Ctrl
if
Intut cycle
9
Type
Input Type: Selects the input
signal type ti be cinnected ti
the pricess variable input. Refer
ti Table 1 - fir the available
iptins.
Pt
10
Dp.po
Selects the decimal piint pisitin
ti be viewed in bith PV and SP.
0.0
11
vn
i
t
Selects display indicatin fir
degrees Celsius ir Fahrenheit:
(
- Indicatin in Celsius.
f
- Indicatin in Fahrenheit.
C
12
0ffs
Sensir Ofset: Ofset value ti be
added ti the PV reading ti
cimpensate sensir errir. Default
value: zeri.
0.0
13
Spll
SP Liw Limit. Defnes SP liwer
limits. It defnes the minimum PV
indicatin range.
This parameter dies nit limit the
Alarm SP cinfguratin.
see
Table 1 -
14
Spxl
SP High limit. Defnes SP upper
limit. This parameter dies nit
limit the Alarm SP cinfguratin.
15
Fval
Functins if Alarms. Defnes the
functins fir the alarms aming
the iptins if the Table 2 - .
if
16
Sp.al
Alarm SP: Value that defnes the
piint if actvatin if the alarm
iutputs. Fir the alarms
prigrammed with the functins
if the type Diferental , these
parameters represent the
deviatins.
0.0
User manual - Thermocontroller ELK4C Page 4/6