PARA
METER
DESCRIPTION
DEFAULT
DISPLAY
DEVIATION
ALARM
TYPE
Deviation Alarm : OP2 activates when PV exceeds SP1 ± set deviation value.
Band Alarm : OP2 activates when PV falls outside the band w.r.t. SP1 in either
direction.
Low Alarm : OP2 activates when PV<SP2.
High Alarm : OP2 activates when PV>SP2.
(Direct acting)
(Direct acting)
OUTPUT-2 ON
OUTPUT-2 OFF
SP2
PV
(Direct acting)
SP2
OUTPUT-2 OFF
OUTPUT-2 ON
PV
(Reverse acting)
OUTPUT-2 OFF
OUTPUT-2 ON
SP2
PV
(Direct acting)
SP2
OUTPUT-2 ON
OUTPUT-2 OFF
PV
(Reverse acting)
(Reverse acting)
(Reverse acting)
OUTPUT ON
SP2
PV
SP1
OUTPUT OFF
OUTPUT ON
OUTPUT ON
PV
SP1
SP2
SP2
OUTPUT OFF
OUTPUT OFF
OUTPUT OFF
PV
SP1
SP2
SP2
OUTPUT ON
OUTPUT OFF
SP2
PV
SP1
OUTPUT ON
Abs
This parameter will be prompted only if OUTPUT 2 is selected as an Auxiliary
control output. In this mode, User can set SP2 value independently. The instrument
works as 2-Set point Controller.
This parameter will be prompted only if OUTPUT 2 is selected as an Auxiliary
control output. In this mode, User can set SP2 value which is always related to SP.
User can set SP2 value with the deviation of ± 99°C w.r.t SP.
OUTPUT 2
MODE
SET
POINT 2
DSBL
This parameter allows the user to edit SP2 parameter in the USER list. Setting this
parameter to ENBL will allow the user to view as well edit the SP2 parameter in
USER list.
This parameter allows the user to edit SP2 parameter in the USER list. Setting this
parameter to DSBL will not allow the user to view as well edit the SP2 parameter in
USER list.
5
Document Name : OIM AI-7X42 (Ver 1.2) Page 5 of 6
PARA
METER
DESCRIPTION
DEFAULT
DISPLAY
PARA
METER
DESCRIPTION
DEFAULT
DISPLAY
15
Default USER LOCK CODE is 15 to access Control & Configuration List.
User has a choice to set its own USER LOCK CODE between 1 to 9999, this is to
prevent unauthorized access of Control & Configuration List.
USER
LOCK
CODE
TABLE 3 :
Below listed options will appear only if OP2 is selected as an Auxiliary control mode.
(All following selected parameter’s code shown in shaded will be displayed for 1 sec. followed by their values / options)
Heat
User can select heating logic in which OP2 will remain ON till PV < SP2.
(PV increases when output2 is ON.)
User can select cooling logic in which OP2 will remain OFF till PV < SP2.
(PV decreases when output2 is ON.)
OUTPUT 2
LOGIC
TABLE 4 :
Below listed parameters will appear only if OUTPUT 2 is selected as ALARM mode. In ALARM
mode, Controller continuously compares PV with either SP (for Deviation or Band alarm) or an independent
ALARM SP2 (for process high and process low Alarm). Alarm will occur when PV falls outside the set Alarm
limits. Also, OP2 will energize or de-energize under Alarm condition as per the Alarm logic(AL.LG) selected.
HYS2 in Control list decides when to switch OFF the Alarm. Instrument supports four types of Alarm as
described below : -
(All following selected parameter’s code shown in shaded will be displayed for 1 sec. followed by their values / options)
