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Para-
meter 

Function description 

Adjustment range 

Standard 
setting 

Custom 
setting 

A30 

Function alarm exit 

0: Boundary alarm, relative 
1: Boundary alarm, absolute 
2: Range alarm, relative 
3: Range alarm, absolute 

 

A31 

Special function at boundary 
or range alarm 

0: no special function 
1: flashing display 


 

 

A32 

Setpoint display 

0: display shows actual value 
1: display shows setpoint S1 (S1‘) 

 

A33 

Type of setpoint S1‘ 
 

0: can not be activated  
1: relative to setpoint S1 
2: absolute (freely adjustable) 

 

A34 

Indication of setpoint change-
over 

0: not active 
1: flashing right point 

 

A40 

Hysteresis mode  
contact K1 

0: symmetrically 
1: one-sided 

 

A41 

Hysteresis mode  
contact K2 

0: symmetrically 
1: one-sided 

 

A50 

Minimum action time  
contact K1 ”On” 

0...400 sec. 

0 sec. 

 

A51 

Minimum action time  
contact K1 ”Off” 

0...400 sec. 

0 sec. 

 

A52 

Minimum action time  
contact K2 ”On” 

0...400 sec. 

0 sec. 

 

A53 

Minimum action time  
contact K2 ”Off” 

0...400 sec. 

0 sec. 

 

A54 

Delay after “Power-on” 

0...400 sec. 

0 sec. 

 

A55 

Mutual delay of contacts  
K1 and K2 

0...400 sec. 

0 sec. 

 

A56 

Alarm delay after “Power-on” 
or setpoint change-over 

0...60 min 

0 min. 

 

A80 

Temperature scale 

0: Fahrenheit 
1: Celsius 

 

 

Pro 

Show program version 

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Summary of Contents for ST72-31.03

Page 1: ...oint controller with alarm contact three point controller with alarm contact two stage controller with alarm contact three stage controller The setpoint and all parameters of the controller are set on a three field plastic foil keyboard Range dependent on type of sensor Front size 72mm x 72mm Panel cut out 66 5mm x 66 5mm Connector plug and socket Power supply 230V ...

Page 2: ......

Page 3: ...f the keys is pressed the display indicates the actual value of the temperature Pressing the SET key the setpoint shows on the display If the setpoint is to be changed the SET key is to be kept pressed while adjusting the setpoint with the keys UP and DOWN Please note that the setpoint can only be changed within the set setpoint limits The setpoint S1 if available can be adjusted in the same way I...

Page 4: ...tial position takes place automatically if no key is pressed for 60 seconds Para meter Function description Adjustment range Standard setting Custom setting P1 Setpoint 2 or DeltaW P4 P5 99 999 K 10 0 C P2 Hysteresis contact K1 0 1 99 0 K 1 0 K P3 Hysteresis contact K2 0 1 99 0 K 1 0 K P4 Control range limitation minimum setpoint 99 C P5 99 C P5 Control range limitation maximum setpoint P4 999 C 9...

Page 5: ...ange limitation maximum setpoint The adjustment range of the setpoint can be limited in both directions This is to prevent the end user of a unit from setting inadmissible or dangerous setpoints P6 Actual value correction This parameter allows the correction of actual value deviations caused for example by sensor tolerances or extremely long sensor lines The regulation measure value is increased o...

Page 6: ...st in both directions Pressing the SET key will give you the value of the respective parameter By pressing the UP or DOWN key at the same time the value can be adjusted Return to the initial position takes place automatically if no key is pressed for 60 seconds or by simultaneously pressing the UP and DOWN key for approx 4 seconds Para meter Function description Adjustment range Standard setting C...

Page 7: ...y adjustable 0 A34 Indication of setpoint change over 0 not active 1 flashing right point 0 A40 Hysteresis mode contact K1 0 symmetrically 1 one sided 0 A41 Hysteresis mode contact K2 0 symmetrically 1 one sided 0 A50 Minimum action time contact K1 On 0 400 sec 0 sec A51 Minimum action time contact K1 Off 0 400 sec 0 sec A52 Minimum action time contact K2 On 0 400 sec 0 sec A53 Minimum action time...

Page 8: ...nalogue input Only relevant if the controller is programmed for a voltage input 0 10V linear or a current input 4 20mA linear These parameters allow scaling of the linear analogue input The value to be indicated for the lower and upper entrance value then defines the range the controller will indicate For input range 4 20mA the display will show sensor error if the input signal drops below 4mA A19...

Page 9: ...acts K1 and K2 This parameter makes a mutual switching on delay of relays possible depending on whichever contact is switched first A56 Alarm Delay after Power on or setpoint changeover This parameter allows a delay of the alarm after switching on the mains voltage or after a setpoint changeover with switching input E1 A80 Temperature scale Indication can be switched between Fahrenheit and Celsius...

Page 10: ...t 4A 250V cosϕ 1 K2 Relay change over contact 4A 250V cosϕ 1 K3 Relay normally open contact 4A 250V cosϕ 1 Display One 3 digit LED displays height 13 mm for temperature display colour red Three LEDs for status display of the outputs K1 K2 and K3 Power supply 230V 50 60Hz Connectors plug and socket Ambient conditions Storage temperature 20 C 70 C Operating temperature 0 55 C Relative humidity max 7...

Page 11: ...r Ni Connection clamp 12 and 13 Dip switch 1 and 2 in position ON ON 6 Connection KTY81 121 PTC Connection clamp 11 and 13 Dip switch 1 5 and 6 in position ON ON 6 Connection Current input 4 20 mA Connection clamp 12 and 13 if FF20 DF17 sensor clamp 14 und 12 Dip switch 1 2 3 and 5 in position ON ON 6 Connection Voltage input 2 10 V Connection clamp 12 and 13 Dip switch 1 3 and 6 in position ON ON...

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