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16

 User Manual

Zenex Pro

OP3 Function : 

Auxiliary Control 

Parameter Description

Settings 

Default Value

(Min. Range - SP) to

(Max. Range - SP) specified

for the selected Input Type 

(Default : 0)

1 to 999 

or

0.1 to 999.9

(Default : 2 

or 

0.2)

Normal

Reverse

(Default : 

Normal)

OFFSET VALUE

Offset  value  for  the  Auxiliary  Control  Setpoint.  Can  be  set  as 
positive value or negative value.

Auxiliary Control Setpoint = Control Setpoint (SP) + Offset Value

HYSTERESIS

Sets a differential (dead) band between the ON and OFF control 
states.

CONTROL LOGIC

Normal  

The Output remains ON for PV 

below 

Setpoint and OFF otherwise.

  

Reverse  

The Output remains ON for PV 

above 

Setpoint and OFF otherwise.

Parameter Description

Settings 

Default Value

LOGIC

  

Normal

   

The Alarm output (Relay/SSR) remains ON under alarm condition; 
OFF otherwise. Useful for Audio / Visual Alarm. 

Reverse

  

The  Alarm  output  (Relay  /  SSR)  remains  OFF  under  alarm 
condition;  ON  otherwise.  Useful  for  Tripping  the  system  under 
control.

5 to 250 Seconds

(Default : 10)

INHIBIT

 

No

Alarm is not suppressed for start-up condition.

Yes

The Alarm activation is inhibited (suppressed) until the PV is found 
within alarm limits from the time the controller is switched ON. 

ALARM TIMER

 

Available for End of Soak Alarm. Sets time duration in seconds for 
which the alarm shall activate upon end of soak timer. 

Normal

Reverse

(Default : 

Normal)

Yes

No

(Default : 

Yes)

Содержание Zenex Pro

Страница 1: ...User Manual Zenex Pro Zenex Pro User Manual Advanced Universal Self Tune PID Temperature Controller with Programmable Timer...

Страница 2: ...S OPERATION 8 4 PAGE 10 I O CONFIGURATION PARAMETERS 10 5 PAGE 12 OP2 FUNCTION PARAMETERS 12 6 PAGE 13 OP3 FUNCTION PARAMETERS 15 7 PAGE 14 PID CONTROLPARAMETERS 17 8 PAGE 15 SOAK TIMER PARAMETERS 19...

Страница 3: ...Flashes Alarm 1 status if OP2 function is Alarm OP2 OP3 Indicates Output 3 status if OP3 function is Auxiliary Control Flashes Alarm 2 status if OP3 function is Alarm COM Serial Communication Status...

Страница 4: ...hows the Balance SoakTime WLO Water Level Status Flashes if water level is LOW Unused L1 Symbol Key Function Press to enter or exit set up mode DOWN UP ENTER Press to store the set parameter value and...

Страница 5: ...owing SP value If permitted at Supervisory Level step through the following sequence for adjusting the SP value 1 While the Lower Readout shows SPvalue press and release UPor DOWN key once The Lower R...

Страница 6: ...lability of operator parameters is controlled at supervisory level and these parameters are not affected by the master lock status Accessing Operator Page Adjusting Parameters Step through the followi...

Страница 7: ...D Positive or Negative Alarm 1deviation band 1999 to 9999 or 199 9 to 999 9 ALARM 1 WINDOW BAND SymmetricalAlarm 1 window band 3 to 999 or 0 3 to 99 9 No Yes Table 2 2 PAGE 0 OPERATOR PAGE The Operato...

Страница 8: ...Alarm 2 deviation band ALARM 2 DEVIATION BAND 199 to 999 or 199 9 to 999 9 SymmetricalAlarm 2 window band ALARM 2 WINDOW BAND 3 to 999 or 0 3 to 999 9 OP3 Function Auxiliary Control Parameter Descrip...

Страница 9: ...7 User Manual Zenex Pro Control Setpoint SP Locking Parameter Description Settings SETPOINT LOCKING Set toYes to lock the SPediting on the Lower Readout No Yes...

Страница 10: ...st rolls back to the first parameter 5 Use UP DOWN keys to adjust the parameter value The display flashes if UP key is pressed after reaching the maximum value or DOWN key is pressed after reaching th...

Страница 11: ...g disabling the Lock step through the following sequence Locking 1 Press and release PAGE key while the controller is in the MAIN Display Mode The Lower Readout shows PAGE and the Upper Readout shows...

Страница 12: ...Off The control algorithm tends to maintain the PV at SP by either switching the output say Heater fully OFF or fully ON The On and Off switching is differentiated by the user settable Hysteresis Ban...

Страница 13: ...Applicable for OP1 as DC Linear Voltage Applicable for OP1 as DC Linear Current Relay SSR Solid State Relay Min Range to Setpoint High for the selected Input Type Option What it means Range Min to Ma...

Страница 14: ...e or negative Deviation Band value Window Band The alarm activates if the PV deviation from SP is greater than the set Window Band value in either direction End Of Soak The OP2 Relay SSR is switched O...

Страница 15: ...lable for End of SoakAlarm Sets time duration in seconds for which the alarm shall activate upon end of soak timer 5 to 250 Seconds Default 10 OP2 Function Auxiliary Control Parameter Description Sett...

Страница 16: ...Control Setpoint SP Offset Value 0 to 250 or 0 0 to 25 0 Default 0 HYSTERESIS Differential dead band between the blower ON and OFF states 1 to 250 or 0 1 to 250 0 Default 2 or 0 2 TIME DELAY This para...

Страница 17: ...eviation Band value Window Band The alarm activates if the PV deviation from SP is greater than the set Window Band value in either direction End Of Soak The OP2 Relay SSR is switched ON for the time...

Страница 18: ...F otherwise Reverse The Output remains ON for PV above Setpoint and OFF otherwise Parameter Description Settings Default Value LOGIC Normal TheAlarm output Relay SSR remains ON under alarm condition O...

Страница 19: ...PID Control The Proportional band is defined in terms of process value deviation from the setpoint also known as process error Within the band the output power is varied from maximum 100 at maximum de...

Страница 20: ...ns like variations in load power supply fluctuations etc fast enough so as retain the process value near the setpoint The derivative time determines how strong the output power will change in response...

Страница 21: ...AND After issuance of start command the timer starts counting down once the PV enters the process band around SP defined by this parameter value 0 to 9999 or 0 0 to 999 9 Default 5 or 0 5 HOLDBACK STR...

Страница 22: ...er issuance of Start Command the count down starts only after the PV reaches within timer Start Band The timer start band is a symmetrical band centered around the SP For example for a start band of 2...

Страница 23: ...timer stops execution until a start command is issued End of Soak Events The output Relay SSR modules OP2 and or OP3 can be configured as End of Soak Alarm with a settable alarm duration That is upon...

Страница 24: ...he PV takes longer to reach the SP Decreases the value if the overshoot persists 1 0 to 2 0 1 2 Default SELF TUNE ON SETPOINT CHANGE Enable Re tune the controller if there is a substantial large chang...

Страница 25: ...ssuing Soak Timer Start Command An open to close contact will initiate the SoakTimer Water Level Low Digital Input is used for detecting Low Water Level SLAVE ID This parameter assigns a unique identi...

Страница 26: ...ead Write parameters can be accessed for both reading and writing No The Read Write parameters can only be accessed for reading That is the parameter values cannot be altered through serial communicat...

Страница 27: ...iew OP1 OP2 OP3 SOK WLO Zenex Pro TMR COM L1 V H Parameter Dimensions mm inches H V 45 0 0 5 45 0 0 5 1 77 0 0 02 1 77 0 0 02 OUTER DIMENSIONS AND PANEL CUTOUT The Figure 10 1 shows the controller out...

Страница 28: ...the controller housing through the panel cutout from the front of the mounting panel 3 Hold the controller gently against the mounting panel such that it positions squarely against the panel wall see...

Страница 29: ...ply is switched off while making removing any connections or removing the controller from its enclosure CONNECTION DIAGRAM The Electrical Connection Diagram is shown on the top side of the enclosure T...

Страница 30: ...ble Thermocouple Connect Thermocouple Positive to terminal 17 and Negative to terminal 16 as shown in Figure 11 2 b Use correct type of extension lead wires or compensating cable Avoid joints in the c...

Страница 31: ...1 and 10 of the controller to and RS485 terminals of the Master device To ensure reliable operation of the Serial Communication Link without data corruption due to line noise or reflections use a pair...

Страница 32: ...2 wire of the size not smaller than 0 5mm for power supply connections Connect Line Phase supply line to terminal 1 and the Neutral Return supply line to terminal 2 as shown in Figure 11 6 below The...

Страница 33: ...d i a n e t Dec 2021 Process Precision Instruments 101 Diamond Industrial Estate Navghar Vasai Road E Dist Palghar 401 210 Maharashtra India Sales 8208199048 8208141446 Support 07498799226 08767395333...

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