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LOWER

DISPLAY

UPPER

DISPLAY

 PARA

METER

DESCRIPTION

DEFAULT

OUTPUT 2

MODE

Disable

This parameter will appear only if Control logic is Heat-Cool.
If Enabled, User can set Diff. mode for OUTPUT 2 in USER list. 

If disabled, User can not set Diff. mode for OUTPUT 2 in USER list.

OUTPUT 2 
CONTROL

15.0

OP2 will be OFF at A OP2C value  irrespective of output 2 mode.

This parameter will appear only if Control logic is Heat-Cool. 

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

SET

POINT 1

Enable

If Enabled, User can View & edit the Set point (SP1) in USER list. 

If  disabled,  User  can  only  View  the  Set  Point  (SP1)  but  Can  not  edit  it  in  USER 
list.

This parameter allows the user to select output 2 as an ‘Auxiliary’ control.
For options refer Table 3.

For options refer Table 4.

This parameter allows the user to select output 2 as an ‘Alarm’ control.

This parameter allows the user to select output 2 as a ‘Soak’ mode.
For options refer Table 5.

This  parameter  allows  the  user  to  select  output  2  to  function  as  both  ‘Alarm’  & 
‘Soak’. For options refer Table 4 & 5.

OUTPUT 2
FUNCTION

Auxiliary

When NONE is selected, Output 2 will be permanently de-activated.

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 Lower display will only show the Timer value(SOAK TIME).

This parameter will appear only if Output 2 is set as SOAK/ AL.ST

By this parameter Lower display will show Setpoint till soak timer has not started 
and afterwards, it will display the Timer value(SOAK TIME).

  LOWER
 DISPLAY
MESSAGE

SP1

   LOWER
  DISPLAY
 RAMPING
SETPOINT

This parameter will appear only if Ramp rate is enabled.

If Enabled, User can View ramping setpoint.

If disabled, User can View target setpoint.
This parameter will appear only if Ramp rate is enabled.

Enable

TABLE 3 :

 

Below listed options will appear only if OP2 is selected as an Auxiliary Control Mode .

 

OUTPUT 2

LOGIC

HEAT

User can select Heat logic for  control Output 2 in which  OP2  will remain ON till 
PV<SP2 (PV increases when output is ON).

User  can  select  Cool  logic  for    control  Output  2  in  which  OP2  will  remain  ON  till 
PV> SP2 (PV decreases when output is ON).

LOWER

DISPLAY

UPPER

DISPLAY

 PARA

METER

DESCRIPTION

DEFAULT

If selected, User can set SP2 value independently, irrespective of SP1.

In this mode SP2 is always related with SP1.
User can set SP2 value with deviation of ± 99°C w.r.t SP1.

ABS

SET

POINT

2

SET

POINT

2

Enable

If Enabled, User can View & edit the Set point (SP2) in USER list. 

If disabled, User can not View or edit Set Point (SP2) in USER list.

OIM Px-X28 V2.0 Page 6 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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