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ST70-31.03

Temperature controller

Order number 900380.004

Wiring diagram

Product description

The switching exits of the thermostatic controller can be programmed as

-two-point controller with alarm
-three-point controller
-two-stage controller
-controller with ramp profile.

The setpoint and all parameters of the controller are set on a three-field plastic foil keyboard.

Sensor: Pt100-3 wire
Range: -99...600

C

Front size: 72mm x 36mm
Panel cut-out: 68.5mm x 28.5mm
Connector: screw terminal

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Summary of Contents for ST70-31.03

Page 1: ...ller can be programmed as two point controller with alarm three point controller two stage controller controller with ramp profile The setpoint and all parameters of the controller are set on a three field plastic foil keyboard Sensor Pt100 3 wire Range 99 600 C Front size 72mm x 36mm Panel cut out 68 5mm x 28 5mm Connector screw terminal ...

Page 2: ......

Page 3: ...n addition the SET key is used for setting parameters First control level Parameter setting of the control setpoint If none of 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 t...

Page 4: ...nt range Standard setting Custom setting P1 Setpoint 2 or DeltaW P4 P5 99 999 K 0 0 C 10K P2 Hysteresis contact K1 0 1 99 9 K 1 0 K P3 Hysteresis contact K2 0 1 99 9 K 1 0 K P4 Control range limitation minimum setpoint 99 C P5 99 C P5 Control range limitation maximum setpoint P4 999 C 999 C P6 Actual value correction 10 0 10 0 K 0 0 K P11 Relative or absolute employment point of the ramp phase 99 ...

Page 5: ...ections 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 or decreased by the here adjusted value P11 Employment point of the ramp phase Before reaching th...

Page 6: ...t alarm is a boundary alarm or a range alarm with symmetrical hysteresis see P32 Both at the boundary alarm and the range alarm limit values can be relative i e going along with the setpoint or absolute i e independent of the setpoint The operation mode is set with parameter A30 If in case of boundary alarm and only one switching point is required the not used second switching point should be adju...

Page 7: ...g 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 0 no ramp function 2 relative ramp function 3 absolute ramp function 0 A8 Display mode all parameter indications are pres...

Page 8: ...3 Minimum action time contact K2 Off 0 400 sec 0 0 sec A54 Delay after Power on 0 400 sec 0 0 sec A55 Mutual delay of contacts K1 and K2 0 400 sec 0 0 sec A60 Sensor type 01 Thermo element type J 02 Thermo element type K 11 PT100 2 Leiter 12 PT100 3 Leiter 21 KTY81 121 2 Leiter 22 PT1000 2 Leiter 31 2 10 V or 4 20 mA 32 0 10 V or 0 20 mA dependent on hardware A70 Zeitkonstante Softwarefilter 0 0 0...

Page 9: ... and if there is a leading zero In general all parameter indications are presented with decimals A9 Weighing factor With this parameter the actual value can be submitted to weighing The measured value is multiplied by it and both indicated in the display and applied for regulation A10 Indication value for lower value linear analogue input A11 Indication value for upper value linear analogue input ...

Page 10: ...he switching frequency The adjusted time sets the entire minimum time period for a switching on or switching off phase A54 Delay after Power on This parameter allows a switching on delay of relays after switching on the mains voltage This delay corresponds with the time set here A55 Mutual delay of contacts K1 and K2 This parameter makes a mutual switching on delay of relays possible depending on ...

Page 11: ...ure alarm at too high or too low temperature if activated see A31 Buzzer Temperature alarm at too high or too low temperature if activated see A31 The buzzer function can be switched off with the DOWN key EP display flashes 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 Error messages are saved and...

Page 12: ...splay 3 digit LED Display colour red 1 LED for status display Power supply 12 24 V AC 50 60 Hz or 16 36V DC Connectors 12 pole screw terminal spacing 5 0mm for cable up to 2 5 mm Ambient conditions Storage temperature 20 70 C Operating temperature 0 55 C Relative humidity max 75 without dew Weight ca 150g Enclosure Front IP50 Installation data Front size 72 x 36 mm Panel cut out 68 5 x 28 5 mm Ins...

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