3
Document Name : OIM AI-7X42 (Ver 1.2) Page 3 of 6
User can change the SP value using UP/ DOWN keys. Holding the key
will change the value at a faster rate. Press SET key to store the desired
value and move on to the next parameter.
0 C
o
LSPL ~ HSPL
CONTROL
SET POINT
PARA
METER
RANGE
DESCRIPTION
DEFAULT
DISPLAY
This parameter will be prompted if Output 2 is configured as...
Either absolute auxiliary control or as an alarm (High/Low) mode.
Either deviation auxiliary control or as a deviation alarm mode.
As a band alarm.
Î
Ï
Ð
LSPL ~ HSPL
-99 to 99 °C
2 to 99 °C
SET
POINT2
0 C
o
POWER UP:
At power on, following sequence will be prompted on the display for 1 sec. till it reaches to Home
display mode.
MODEL
VERSION
HOME
PV
VERSION
HOME
PV
PROGRAMMING
USER LIST :
To access the user list Press & Release SET key once.
(All following selected parameter’s code shown in shaded will be displayed for 1 sec. followed by their values / options)
(All following selected parameter’s code shown in shaded will be displayed for 1 sec. followed by their values / options)
CONTROL LIST :
SET & DOWN key simultaneously
To enter in this mode press
for 3 sec. User can then set
the control parameters.
PARA
METER
RANGE
DESCRIPTION
DEFAULT
DISPLAY
Proportional
Band
0.5
to
99.9°C
This parameter will be prompted only if selected control action is PID. It
sets bandwidth over which the output power is adjusted depending upon
the error (SV-PV). The value of this parameter is automatically set by Auto
tune function.
5.0 C
o
Integral
Time
0
to
9999 Sec.
This parameter will be prompted only if selected control action is PID. It
sets the time taken by PID algorithm to remove steady state error. Value
of this parameter is automatically set by Auto Tune function. If set to ‘0’,
this function will be disabled.
0 Sec.
Derivative
Time
0
to
300 Sec.
This parameter will be prompted only if selected control action is PID. It
defines how strongly the Controller will react to the rate of change of PV.
Value of this parameter is automatically set by Auto Tune function. If set to
‘0’, this function will be disabled.
0 Sec.
Cycle
Time
0.5
to
100.0 Sec.
This parameter will be prompted only if selected control action is PID.
User can set this value based on process being controlled & type of
Output being selected. For Relay O/P, cycle time should be more 12sec &
for SSR O/P, cycle time should be less than 10sec.
16.0 Sec.
Delay 1
0
to
500 Sec.
This parameter will be prompted only if selected control action is ON-OFF.
It sets the main output restart time where O/P once turned OFF will turn
ON only after restart time, regardless difference between PV & SP in Heat
or Cool mode. If set to '0', O/P will be switched without delay. Also, Delay
will be applicable in case of every power ON.
120 Sec.
This parameter will be prompted only it selected control mode for output2
is auxiliary control or an alarm. The value of this parameter sets the dead
band between on and off switching of output load.
Hysterisis 2
1 to 25 C
o
2 C
o
0
to
500 Sec.
This parameter will be prompted only if output 2 is configured as an
Auxiliary control output. In this mode, O/P once turned OFF will restart
only after set time regardless of the difference between PV and SP2. Time
delay is settable up to 500 seconds. If time delay is set to 0, there is no
delay between output switching.
0 Sec.
Delay 2
Control
Hysterisis
1 to 25 C
o
This parameter will be prompted only if selected control action is ON-OFF.
It sets the dead band between ON & OFF switching of the Output. Larger
value of hysterisis minimize the number of ON-OFF operation of load.
This increases life of actuators like contactors but also produces large
errors (between PV & SV).
2°C
0
1 ~ 9999
Set this parameter to 15 (Default LOCK CODE) to access Control List.
User has a choice to set different Lock Code via USER LOCK CODE in
Config. List.
LOCK
CODE
100 %.
OUTPUT
POWER
LIMIT
0.0 %
TO
100.0 %
This parameter will be prompted only if selected control action is PID. This
parameter will decide the maximum output power in % applied to the load
TUNE
OFFSET
50 %
to
100 %
100 %.
This parameter will be prompted only if selected control action is PID. This
parameter allows the User to carry out Auto Tuning function below the set
point. (If Tune offset is 50 % tuning will be carried out at 50 % of the set
point and if 100 % tuning will be carried out at 100% of the set point.)
.
