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                                                  (3) Press SET key to store current parameter & move on to the next parameter.

                                                  (2) Press UP or DOWN key to scroll between parameter options. 

CONFIGURATION LIST :

   

(1) To enter in this mode, press and hold SET & UP key simultaneously for 3 sec. 

Set this parameter to 15 (Default LOCK CODE) to access Config. List.
User have a choice to set different Lock Code via USER LOCK CODE in Config. 
List.

Fe-k(J) T/C

Cr-AL(K) T/C

o

760 C

o

-99 

1300 C

o

-99 

1300 C

o

-99 

400 C

o

1  C

o

1  C

o

1  C

}

(R) T/C

(S) T/C

TC - N

TC - T

o

0 ~ 1700 C

o

0 ~ 1700 C

o

1  C

o

1  C

o

1  C

Sensor Type 

Accuracy

Resolution

Range

  

±

o

C

This parameter value is set according to the type of sensor (Thermocouple or RTD 
input) connected to the controller's input terminals. 

50 %

 to 

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 set to 50 %, tuning will be carried out at 
50 % of the set point and if set to 100 %, tuning will be carried out at 
100 % of the set point.)

  TUNE
OFFSET

100 %

0

 to

500 Sec.

o

1 to 25  C

o

1 to 25  C

0

 to

500 Sec.

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 to 
the load. This increases life of actuators like contactors but, also 
produces large errors (between PV & SV).

-9.9 

to

9.9°C

-9.9 

to

9.9°C

0

 to

99 Sec.

0.0

 to

99°C.

This  parameter  will  be  prompted  only  if  selected  control  action  is  ON  - 
OFF. It sets the main output Delay time where O/P once turned OFF will 
turn ON only after Delay time, regardless difference between PV & SP. 
Also, Delay will be considered at every power ON.

This parameter will be prompted only if Control Logic for Output1 is 
configured for Heat-Cool.
SP (set point) will be consider as (SP-Gap1) for heating.

This parameter will be prompted only if selected control mode for 
output2 is Auxiliary control or an Alarm. The value of this parameter sets 
the dead band between ON & OFF switching of output load.

 This parameter will be prompted only if Control Logic for Output1 is 
configured for Heat-Cool.
SP (set point) will be consider as (SP+Gap2) for cooling.

This  parameter  will  be  prompted  only  if  Output2  is  configured  as  an 
Auxiliary control output OR Control Logic is configured for Heat-Cool. In 
this mode, it sets the output Delay time where O/P once turned OFF will 
turn  ON  only  after  Delay  time,  regardless  difference  between  PV  & 
SP2. Also, Delay will be considered 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 from SP during 
soak  time  cycle.  If  PV  falls  outside  the  Soak  band  during  soak  cycle, 
Timer  halts.  Timer  will  start  only  when  PV  falls  within  the  soak  band. 
This parameter is ignored if set to ‘0’.

CONTROL
     HYS

DELAY 1

DELAY 2

HYS 2

GAP 2

GAP 1

 SOAK
  TIME
DELAY

SOAK
BAND

2°C

2°C

120 Sec.

0°C

0°C

0 Sec.

10 Sec.

0 Sec.

0

TC - J

LOCK
CODE

INPUT
 TYPE

  PARA
METER

 LOWER
DISPLAY

 UPPER
DISPLAY

RANGE

DESCRIPTION

DEFAULT

 LOWER
DISPLAY

 UPPER
DISPLAY

  PARA
METER

DESCRIPTION

DEFAULT

OIM Px-X28 V2.0 Page 4 of 9

Summary of Contents for Px-428

Page 1: ...ads v Circuit breaker and appropriate fuses must be used for v The controller must be wired as per wiring diagram it to high voltage surges of extended duration high current power cables Where it is i...

Page 2: ...1 For SP programming 2 To access Control mode 3 To access Configuration mode along with UP key 4 To scroll the parameter to store its value 1 To increase alter parameter value in program mode 2 To ent...

Page 3: ...ed 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 1 Either absolute auxiliary control or...

Page 4: ...Output1 is configured for Heat Cool SP set point will be consider as SP Gap1 for heating This parameter will be prompted only if selected control mode for output2 is Auxiliary control or an Alarm The...

Page 5: ...ut is ON PV decreases when output is ON User can select cooling logic in which OP1 will remain ON till PV SP This parameter will be prompted only if selected input is RTD or RTD 1 and is used for BOD...

Page 6: ...vated By pressing DOWN key Lower display will Toggle between SP1 value SP2 value Alarm SP Value AL SP Timer value SOAK By this parameter Lower display will only show the SP1 value By this parameter Lo...

Page 7: ...ompletion of current soak time cycle 1 At every Power ON 3 Power failure during soak time is in progress In this Mode Timer will start only after pressing START key for 3 sec PV SV for any of the foll...

Page 8: ...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 Once the Alarm is activated User has following three options to de activ...

Page 9: ...remains OFF till actual temperature drops down in Heat Logic or raises in Cool Logic equal to hysterisis set by user As shown in Fig 3 1 3 2 If the control performance by using auto tuning is still u...

Page 10: ......

Page 11: ......

Page 12: ...remains OFF till actual temperature drops down in Heat Logic or raises in Cool Logic equal to hysterisis set by user As shown in Fig 3 1 3 2 2 Substantial change in SP from previous auto tuning value...

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