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POWER UP:   

At power on, following sequence will be prompted on the display till it reaches to Home display mode.

In home display mode, by pressing DOWN key, User can 
view the set value of SP1 & SP2 (if OP2 = AUXILIARY or 
ALARM mode) or timer value(if OP2 = soak mode) 
sequentially. 
Here, Lower display will show SP1-value, SP2-value, 
Alarm SP-Value & Timer-value by pressing DOWN key and 
it’s respective parameter code (SP1/SP2/AL.SP/SOAK 
TIME) by pressing UP key.

UPPER

DISPLAY

LOWER

DISPLAY

MODEL

VERSION

HOME

PV

SV

PROGRAMMING

USER LIST : To access the user list press SET key once.

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.

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  than 
12sec & for SSR O/P, cycle time should  be less than 10sec.

16.0 Sec.

DERIVATIVE

TIME

to 

300 Sec.

This parameter will be prompted only if selected control action is PID. It 
defines  how  strongly  the  controller  will  react  to  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.

60

INTEGRAL

TIME

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.

240

PROPORTIONAL

BAND

0.5 

to 

99.9°C

This parameter will be prompted only if selected control action is PID. It 
sets  proportional  band  over  which  the  output  power  is  adjusted 
depending  upon  the  error  (SV-PV).  Value  of  this  parameter  is 
automatically set by Auto tune function.

o

5.0 C

LOWER

DISPLAY

UPPER

DISPLAY

 PARA

METER

RANGE

DESCRIPTION

DEFAULT

CONTROL LIST : 

SET & DOWN key simultaneously 

To enter in this mode, press 

for 3 sec. User can then set the 

following control parameters.

OUTPUT

OFF

1 to10 

This parameter will be prompted only if selected control action is PID. 
With this parameter  O/P will be Completely OFF after the Set Point + 
Offset Value. If Disable, O/P will act Depending upon the PID Value 
after Set Point achieved.

Disable

3

OIM AI-7X82 V2.0 Page 3 of 9

This parameter is prompted only if output 2 is configured as soak timer. 
Controller  starts  the  execution  of  soak  time  as  per  the  mode  selected. 
Soak timer can be programmed using four different time base in Config. 
List.

This parameter is prompted if SP2 is Enable & output 2 is configured as

(1)

 

Either absolute auxiliary control or as an alarm (High/Low) mode.

(2)

 

Either deviation auxiliary control or as a deviation alarm  mode.

(3)

  As a band alarm(For all above Sp2 has to be enable).

SOAK

TIME

1 Sec to

999.9 Hrs.

1 min.

LSPL ~ HSPL 
-99  to  +99°C
2  t o  9 9 ° C

SET

POINT 2

o

0 C

LOWER

DISPLAY

UPPER

DISPLAY

 PARA

METER

RANGE

DESCRIPTION

DEFAULT

CONTROL

SET POINT

LSPL ~ HSPL

 

---------- 

o

0 C

User  can  change  SP1  value  using  UP/  DOWN  keys.  Holding  the  key,   
will  change  the  value  at  a  faster  rate.  Press  SET  key  to  store  the 
desired value & move on to the next parameter.

This parameter will be available only if Enabled in Configuration List. 
User can set ramp rate/min for SP1 (Set Point) to minimize overshoot. 

RAMP

RATE

o

 0.0  C

to

o

 25.0  C

Disable

This parameter is prompted only if Control Logic for Output1 is 
configured for Heat-Cool.
O/p2 will be automatically activated /de-activated w.r.t SP1 & HYS.

OP2

MODE

AUTO

O/p2 will be permanently Activated (ON).

O/p2 will be permanently De-Activated (OFF). 

0

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.

1 ~ 9999

LOCK
CODE

Содержание AI-7482

Страница 1: ...bon dust salt air direct sunlight or radiant heat v Ambient temperature and relative humidity surrounding the controller must not exceed the maximum specified limit for proper operation of the controller v The controller in its installed state must be protected against excessive electrostatic or electromagnetic interferences Ventilation holes provided on the chassis of the instrument are meant for...

Страница 2: ...782 AI 7982 FRONT PANEL LAYOUT AI 7882 AI 7682 Glows when OP1 is ON flashes when delay time dly1 is in operation if selected mode is ON OFF Glows when OP2 is ON flashes when alarm condition persists even after acknowledged OR delay time dly2 is in operation selected mode is ON OFF Glows when Soak mode is selected flashes when Soak timer is in operation along with UP key 4 To scroll the parameter t...

Страница 3: ...upon the error SV PV Value of this parameter is automatically set by Auto tune function o 5 0 C LOWER DISPLAY UPPER DISPLAY PARA METER RANGE DESCRIPTION DEFAULT CONTROL LIST SET DOWN key simultaneously To enter in this mode press for 3 sec User can then set the following control parameters OUTPUT OFF 1 to10 This parameter will be prompted only if selected control action is PID With this parameter ...

Страница 4: ...ered at every power ON This parameter will be prompted only if selected control mode for Output2 is Soak timer Depending on end of soak strategy the value of this parameter sets the activation time for OP2 when Soak timer is over Setting this parameter to 0 will make OP2 continuously ON at the end of Soak time till User starts the next cycle This parameter defines the permissible deviation of PV f...

Страница 5: ...ID User can select between PID or ON OFF action algorithm to be adopted for output HEAT CONTROL LOGIC FOR O P 1 User can select heating logic in which OP1 will remain ON till PV SP PV increases when output is ON User can select cooling logic in which OP1 will remain ON till PV SP PV decreases when output is ON This parameter will be prompted only if selected input is RTD or RTD 1 and is used for B...

Страница 6: ...list OUTPUT 2 CONTROL 15 0 This parameter will appear only if Control logic is Heat Cool OP2 will be OFF at Ambient OP2C value irrespective of output 2 mode Auxiliary Toggle OUTPUT 2 FUNCTION This parameter allows the user to select output 2 as an Auxiliary control For options refer Table 3 This parameter allows the user to select output 2 as an Alarm control For options refer Table 4 This paramet...

Страница 7: ...der alarm conditions used to trip the process in alarm conditions ALARM INHIBIT If this parameter is set as YES Alarm condition persists it will Disable Alarm O P at power ON If this parameter is set as NO Alarm condition persists it will Enable Alarm O P at power up NO ALARM ACK AUTO Once the Alarm is activated User has following three options to de activate it When PV falls within the programmed...

Страница 8: ... only after pressing START key for 3 sec PV SV for any of the following conditions 1 At every Power ON 2 Completion of current soak time cycle 3 Power failure during soak time is in progress TIMER START MODE MOD 2 In this Mode Timer will start only after pressing START key for 3 sec PV SV for any of the following conditions 1 At every Power ON 2 Completion of current soak time cycle After executin...

Страница 9: ... undershoot Auto tuning is applied in case of 1 Initial set up for a new process 2 Substantial change in SP from previous auto tuning value 3 Control accuracy is not satisfactory If the control performance by using auto tuning is still unsatisfactory User can apply further adjustments of P I D values as shown in Table 3 below Fig 3 1 HEAT LOGIC ON OFF TIME 0 TEMP C HYSTERISIS SP ON ON ON AMB O P O...

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