STORK TRONIC ST48-WHDVM.04 Manual Download Page 19

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Status messages

Message

Cause

Error elimination

F 1

Sensor error
(open- or short-circuit at sensor F1)

Check sensor

F 2

Sensor error
(open- or short-circuit at sensor F2)

Check sensor

_ _ _

Keyboard lock active

see Parameter P19 or A19

Flashing display

Temperature alarm (see A31)

cancel buzzer with DOWN button

Data loss at parameter memory
(Contacts K1 and K2 are switched off)

If error cannot be eliminated by
switching on/off, the controller must be
repaired

Summary of Contents for ST48-WHDVM.04

Page 1: ...le due to its freely programmable general functions The relay contact K1 directly affects the main setpoint formed by reference variable and the given offset temperature Contact K2 affects the secondary setpoint which is formed by the main setpoint via overlap or which alternatively can be freely defined Contact K3 affects adjustable limit values Sensor Pt100 Range 99 750 C Front size 48mm x 48mm ...

Page 2: ......

Page 3: ...one of the keys is pressed the display indicates the actual value of the temperature Pressing the SET key the setpoint difference value 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 adju...

Page 4: ... Reset time Tn I factor 0 999 sec 0 sec inactive 500 sec P9 Lead time Tv D factor 0 999 sec 0 sec inactive 50 sec P10 Cycle time 2 100 sec 8 sec P19 Key lock 0 no key lock 1 key lock 0 P20 Following value display P21 Following value correction 10 0 10 0 K 0 0 K P22 Leading value display P23 Leading value correction 10 0 10 0 K 0 0 K P30 Lower limit value of the following value for alarm contact 99...

Page 5: ... 0 or 10V at analogue output 99 999 C 0 0 C P47 Output voltage for values lower than P46 0 0V 1 10V 0 P48 Upper limit of the following value for 0 or 10V at analogue output 99 999 C 10 0 C P49 Output voltage for values higher than P48 0 0V 1 10V 1 P50 Hysteresis at limit values P46 and P48 0 1 99 9K 1 0K Pr Program version ...

Page 6: ...teresis The hysteresis is only effective with thermostatic control if PID mode is activated the hysteresis becomes ineffective P4 Control range limitation minimum value P5 Control range limitation maximum value 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 Parameters P7 P10 are only ...

Page 7: ...ple by sensor tolerances or extremely long sensor lines The regulation measure value is increased or decreased by the here adjusted value P30 Lower alarm value P31 Upper alarm value The exit alarm is a boundary alarm or a range alarm Both at the boundary alarm and the range alarm limit values can be relative i e going along with the setpoint S1 S1 or absolute i e independent of the setpoint S1 S1 ...

Page 8: ...e temperature range between P33 and P34 is reached again the control returns to the main setpoint as before P40 Analogue output This is to define whether the analogue output carries reference variable the actual following value or the actual leading value In case of reference variable display the sign can change depending on whether heating or cooling is required The actual values however are alwa...

Page 9: ... 10 0 P44 2 0 P45 2 0 Heating performance Cooling performance 100 0 100 2 V 10 V Analogue output P 43 P 44 P 45 Fig 6 Scaling example 3 Indication range of the variable for cooling is 2 0 8 0 V with P43 2 0 P44 2 0 P45 8 0 Heating performance Cooling performance 100 0 100 8 V 0 V Analogue output P 43 P 44 P 45 Fig 7 Notes concerning parameters P40 P45 If the reference variable is selected with par...

Page 10: ...th parameter P46 P48 Upper limit of the following value for 0 or 10V at analogue output If the following value goes above this limit the output voltage is according to parameter P49 P49 Output voltage for values higher than P48 Output voltage above the limit set with parameter P48 P50 Hysteresis at the limit values P46 and P48 The here adjusted hysteresis is set symmetrically at the setpoints acco...

Page 11: ... K1 0 heating contact 1 cooling contact 0 A2 Switch mode contact K2 0 heating contact 1 cooling contact 1 A3 Function of contact K1 at sensor error 0 relay off 1 relay on 0 A4 Function of contact K2 at sensor error 0 relay off 1 relay on 0 A5 Selection setpoint 2 or DeltaW 0 operation with setpoint 2 1 operation with DeltaW 1 A6 Control characteristics contact K1 0 thermostatic 1 PID 1 A7 Control ...

Page 12: ...ifferential control 4 actual difference value 0 A34 Indication with function key 1 if b1 2 0 leading value 1 desired difference value 2 actual difference value 1 A35 Type of setpoint S1 if b1 0 0 additive differential temperature 1 alternate differential temperature 2 freely adjustable setpoint 1 A40 Hysteresis mode contact K1 0 symmetrically 1 one sided 0 A41 Hysteresis mode contact K2 0 symmetri...

Page 13: ...ction to ready message 3 U4 Function output K4 0 no connection 1 connection to contact K1 2 connection to contact K2 3 connection to alarm contact 4 connection to ready message 4 b0 Function input E1 0 no function 1 setpoint S1 activated 2 standby function 1 b1 Function key 1 0 no function 1 standby function 2 display according to parameter A34 0 b3 Text if in standby mode if b0 2 b1 1 0 standby t...

Page 14: ...act it operates with setpoint 1 A8 Display mode The value can be indicated in integrals or with decimals In general all parameter indications are presented with decimals A10 Indication value for lower value linear analogue input A11 Indication value for upper value linear analogue input Only relevant if the controller is programmed for a voltage input 0 10V linear or a current input 4 20mA linear ...

Page 15: ... the upper display and the lower display is off The lower display stays off if no special function is selected or if there is no differential control A34 Indication with function key 1 If activated with b1 2 function key 1 can be parametered to indicate the leading value the offset temperature or the actual difference This feature is important especially for units with only one display A35 Adjustm...

Page 16: ...cle number Therefore these parameters first assign the outputs to the controller function b0 Function E1 With this parameter function of the ext input E1 can be set With b0 0 the E1 is not evaluated With With b0 1 setpoint S1 is switched to setpoint S1 when input E1 is closed With b0 2 the controller is switched to the standby mode b1 Function key 1 This parameter activates a special function for ...

Page 17: ...ariables Object Differenzregler Name of variable Type Input Output Values Resolution nviSetDiffTemp SNVT_temp_p Input 273 17 327 66 C 0 01 C nviStandbyMode SNVT_lev_disc Input 0 255 nvoActualTemp1 SNVT_temp_p Output 273 17 327 66 C 0 01 C nvoActualTemp2 SNVT_temp_p Output 273 17 327 66 C 0 01 C nvoActualSetPt SNVT_temp_p Output 273 17 327 66 C 0 01 C nvoRelayState SNVT_state Output On Off for K1 K...

Page 18: ...45 A1 A2 A3 A4 A5 A6 A7 A8 A10 A11 A19 A20 A21 A22 A23 A30 A31 A32 A33 A34 A35 A40 A41 A42 A60 A70 A80 U1 U2 U3 U4 b0 b1 b2 b3 L0 L1 Lr Adjustable setpoints S1 S11 S1 Actual values only read Memory address Actual following value A1 0 Actual leading value A2 1 Actual setpoint A3 2 Controller status only read D1 Bit 0 Standby mode 1 if on Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 switching state control c...

Page 19: ...ror open or short circuit at sensor F2 Check sensor _ _ _ Keyboard lock active see Parameter P19 or A19 Flashing display Temperature alarm see A31 cancel buzzer with DOWN button EP Data loss at parameter memory Contacts K1 and K2 are switched off If error cannot be eliminated by switching on off the controller must be repaired ...

Page 20: ... LEDs for status display of the outputs K1 K2 K3 LON communication interface shielded 2 wire line Twisted Pair 78kBaud not polar maximum cable length 100m Interface driver RS485 galvanically not separated The network has to be installed in line topology and terminated with 120Ohm at each side Power supply 12 24V AC 10 50 60Hz or 16 36V DC Power consumption max 3VA Connectors Plug and socket Clamp ...

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