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STORK TRONIC ST96 Series Wiring Diagram

Deep-frying controller
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ST96-32.09
Deep-frying controller
Order number 900087.004

Wiring diagram

Product description

The micro-processed controller ST96-32.09 serves for temperature control at high measuring ac-
curacy and is foreseen for use with deep fryers. The unit has a 3-digit display and is supplied with
230V AC. The controller has an input for Pt100 temperature sensor and one relay exit. The control
setpoints and parameters determining the process are adjusted with a 5-field plastic foil keyboard.
Sensor: Pt100
Range: -99...850 C
Front size: 96mm x 96mm
Panel cut-out: 90.5mm x 90.5mm
Connector: plug and socket

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Summary of Contents for STORK TRONIC ST96 Series

  • Page 1 ST96-32.09 Deep-frying controller Order number 900087.004 Wiring diagram Product description The micro-processed controller ST96-32.09 serves for temperature control at high measuring ac- curacy and is foreseen for use with deep fryers. The unit has a 3-digit display and is supplied with 230V AC.
  • Page 3 SOFTWARE .09 Features of controller The controller features a temperature control circuit. The sensor input measures the temperature of the deep fryer, the relay output controls the heating. The temperature is displayed on a three-digit display. The LEDs indicate the switching state and control status. The controller features a control unit with PID characteristic.
  • Page 4 Selection/activation of PID programs "Pr.1...Pr.3" To select or activate the PID programs, button "UP" must be pressed for approx. 2 seconds on reference value level. The controller will then switch to program selection level, where you can set a pointer to programs "Pr.1...Pr.3" using buttons "UP" and "DOWN". To select the program on the display, press "SET"...
  • Page 5 cannot be changed, however. The warning message and control blocking must be acknowledged by a "Reset". This reset is only possible if the fat which must be replaced has cooled down to a temperature below 100 °C. Deleting the internal fat operating time and alarm reset Press buttons "SET"...
  • Page 6 Control function Heating phase without manual intervention Heating phase after activation (Refer to Figure 1): After activation and start of the controller, a slow heating phase will always follow when the fat is cold. This phase is finished when the setpoint is reached, at the latest. In this slow heating phase, the heating relay clocks, i.e.
  • Page 7 Heating phase after significant cooling (refer to Figure 3): After significant cooling to temperatures below 50 °C, e.g. loading of large quantities of cold fat, the slow heating function is activated again. The heating relay clocks again like in the initial heating phase, until the setpoint or the clock end below the setpoint defined in parameter "P7"...
  • Page 8 Setpoint Heating phase after with manual change-over Figure 4 Heating phase after significant cooling (refer to Figure 3, top): After significant cooling to temperatures below 50 °C, e.g. loading of large quantities of cold fat, a slow heating phase will start, although the change-over to normal heating mode is effected earlier; the heating relay clocks like in the initial heating phase.
  • Page 9 Second control level (P parameters): Setting of control parameters Press UP and DOWN keys simultaneously for at least 4 seconds to access a control parameter list (starting with P1). Use the UP and DOWN key to scroll through the list. If you press the SET key, the value of the corresponding parameter is displayed.
  • Page 10 Description of parameters: P1: On time of heating clocking With this parameter, you can set the on time of the clocked heating phase. Clocking the output relay is used for gentle heating of solid fat. P2: Off time of heating clocking With this parameter, you can set the off time of the clocked heating phase.
  • Page 11 P20-P23: PID parameters ("Pr.4") Settings according to parameter group "P8-P11" for PID program "Pr.4". P24: Switch-off delay for output relay In the case of gas heating, switching off of the output relay is delayed by the set time. With this setting it can be prevented that the burner is ignited in the case of short switching pulses.
  • Page 12 Third control level (A parameters): Setting of control parameters To access the third control level, enter the second level first and scroll through the parameter list until you reach the highest parameter. Then, click the UP button for at least 10 seconds. The message "PA"...
  • Page 13 Technical data of ST96-32.09 Measuring input Resistance thermometer Pt100-3L Measuring range: -80...850°C Measuring accuracy: +/- 0.5K Outputs Relay, normally-open contact, 5(1)A 250V Display Two 3-digit LED displays, 13 und 10 mm height, colour red 3 LEDs, diameter 3mm, for status display Power supply 230V 50/60Hz Connectors...

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St96-32.09

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