i
CONFIGURATION LIST :
(1)
key simultaneously
To enter in this mode, press and hold SET & UP
for 3 sec.
(2) Press UP or DOWN key to scroll between parameter options.
(3) Press SET key to store the current parameter & move on to the next parameter.
(All following selected parameter’s code shown in shaded will be displayed for 1 sec. followed by their values / options)
4
OIM AI-7X41 V2.1 Page 4 of 5
PROCESS
VALUE
OFFSET
o
0 C
Function of this parameter is to add/subtract a constant value to the measured PV to obtain Final
PV for control applications. This parameter value needs to be be altered for one of the following
reason : -
(i) To compensate for known thermal gradient
(ii)To match the display values with another recorder or indicator measuring the same PV.
HIGHER
SP
LIMIT
o
400 C
Sets the maximum limit for set point adjustment. It can be set from LSPL value to maximum
specified range of selected sensor.
LOWER
SP
LIMIT
o
0 C
Sets the minimum limit for set point adjustment. It can be set from minimum specified range of
selected sensor to HSPL value.
CONTROL
LOGIC
HEAT
This parameter will be prompted only if selected control mode is ON-OFF.
User can select HEAT logic in which OP1 will remain ON till PV < SP.
(PV increases when output is ON.)
This parameter will be prompted only if selected control mode is ON-OFF.
User can select cooling logic in which OP1 will remain ON till PV > SP.
(PV decreases when output is ON.)
CONTROL
MODE
PID
User can select between PID or ON-OFF action algorithm to be adopted for output.
INPUT
FILTER
4
Controller is equipped with an adaptive digital filter which is used to filter out any extraneous
pulses on the PV. Filtered PV Value is used for all PV dependent functions. If PV signal is
fluctuating due to noise, increase the filter time constant value.
TC - J
INPUT
TYPE
This parameter value is set according to the type of sensor (Thermocouple or RTD input)
connected to the controller's input terminals.
o
0.3 C
±
Fe-k(J) T/C
Cr-AL(K) T/C
Pt-100(RTD)
Sensor Type
Accuracy
o
0
~
760 C
o
-99
~
1300 C
o
-99
~
1300 C
o
-99
~
400 C
o
0
~
1800 C
o
-100
~
450 C
Resolution
Range
o
1 C
o
1 C
o
1 C
}
(R) T/C
(S) T/C
TC - N
TC - T
TC - B
Pt-100(RTD 0.1)
o
-
100.0 ~ 450.0 C
o
0 ~ 1700 C
o
0 ~ 1700 C
o
1 C
o
1 C
o
1 C
o
1 C
o
0.1 C
o
1 C
1
±
o
C
PARA
METER
DESCRIPTION
DEFAULT
DISPLAY
0
LOCK
CODE
Set this parameter to 15 (Default LOCK CODE) to access Config. List.
User has a choice to set different Lock Code between 1 to 9999 via USER LOCK CODE in
Config. List.
OVERSHOOT
CONTROL
POINT
DISABLE
This parameter will be prompted only if selected control action is PID. Setting this parameter on higher
side will slows down the rate of rise of PV to minimize overshoot (this may cause delay to reach SP).
Disabling or Setting this parametr on lower side will increase the rate of rise of PV (which may cause
overshoot). Disable this option if delay is not required to reach SP.
(This may cause overshoot w.r.t. SP)
OUTPUT
TYPE
RELAY
User has to set this parameter very carefully in accordance with the output used. (Separate
terminal for RELAY & SSR : - Refer electrical installation )
Select Relay if LOAD is connected via contactor. Whenever user selects Relay, Cycle time will
automatically set to 16 sec. User can modify cycle time via Control List.
Select SSR if LOAD is connected via SSR (DC voltage pulses). Whenever user selects SSR ,
Cycle time will automatically set to 1sec. User can modify cycle time via Control List.
