XDSU 1222 W SWITCHING UNITS


 

  • Two-wire connection, two independent relay outputs. Function of pump control
  • Integrated power supply for supplying the sensors
  • Optical state indication
  • Simple operation and installation
  • Wall-mounted case

 

Switching units SDSU–1222–W and DSU–1222–W are designed to evaluate the states of the limit sensors. They include power supply 12 V DC (depending on the version) for supplying the sensors. The DIP switches enable to select a basic mode (an independent function of two limit sensors) or the level control mode between the maximum and minimum level (pump control).

 

 

Description

FEATURES OF VARIANTS

  • DSU – 1222 – W For limit sensors with two or three-wire connection (e.g. CLS, CPS, DLS type). Function of pump control.
  • SDSU – 1222 – W For connection of third wire programmable sensors (e.g. FLD–48 “Meduse” type). It includes programming buttons for easy setting up of the sensor. Function of pump control.

 

TYPE OF SENSORS OUTPUT

DSU–1222–W *

  • 2-wire connection: Type of sensor output S (SO, SC)
  • 3-wire connection: Type of sensor output NPN and PNP (NO, NC, PO, PC)

SDSU–1222–W

  • 2-wire connection: Type of sensor output S (SO, SC) + third programming wire

* The sensor type selection on the unit is performed by switching the DIP switch to P position (sensors PO, PC) or to N position (other types of sensors). Mutual combination of PO, PC sensors with other types is not permissible. Combining sensors NO, NC, with SO and SC is possible.

 

OPERATING ELEMENTS

DSU–1222–W

  • Switch “CH1”, “CH2”
    • position P: The unit reacts to the current fl owing into the input terminals (10, 13). Designed for PNP type sensors.
    • position N: The unit reacts to the current fl owing from the input terminals (10, 13). Designed for NPN and S type sensors.
  • Switch “LC”
    • position OFF: Activation of the basic mode.
    • position ON: Activation of the pump control mode.

SDSU–1222–W

  • Switch “CH1”, “CH2”
    • position OFF: Sensor 1 (“CH1”) or 2 (“CH2”) is not ready to set by buttons “SETTING”
    • position ON: Sensor 1 (“CH1”) or 2 (“CH2”) is ready to set by buttons “SETTING”
  • Switch “LC”
    • position OFF: Activation of the basic mode.
    • position ON: Activation of the pump control mode.
  • Button “SETTING ON”: Setting the selected sensor to open state.
  • Button “SETTING OFF”: Setting the selected sensor to closed state.

 

FUNCTION DESCRIPTION

Basic mode – LC switch in OFF position

  • Activation the sensor connected to IN 1 input causes closing the output relay RE 1 (terminals • 7-6 are closed) and shining LED indicator “OUT 1”.
  • Activation the sensor connected to IN 2 input causes closing the output relay RE 2 (terminals 4-3 are closed) and shining LED indicator “OUT 2”.

Pump-up function – “LC” switch in ON position

  • When the level drops below the sensor connected to IN 1 (MIN) input, the output relay RE 1 closes (terminals 7-6 are closed), LED indicator “OUT 1” start shining. This starts the active device (pump, valve, etc.) and the level goes up. When the level reaches the position of the sensor connected to IN 2 (MAX) input, the output relay RE 1 opens (terminals 7-6 are open). This stops the active device and the level goes down. LED indicator “OUT 1” darkens

Pump-down function – “LC” switch in ON position

  • When the level drops below the sensor connected to IN 2 (MAX) input, the output relay RE 1 opens (terminals 7-8 are closed), LED indicator “OUT 1” darkens. This starts the active device (pump, valve, etc.) and the level goes down. When the level reaches the position of the sensor connected to IN 1 (MIN) input, the output relay RE 1 closes (terminals 7-8 are open). This stops the active device and the level goes up. LED indicator “OUT 1” start shining.

Note: DSU–1222–W and SDSU–1222–W units in pump function mode:

  • For minimum level, select such sensor, which is open when the liquid level is not present (PO, NO, SO).
  • For maximum level, select such sensor, which is closed when the liquid level is not present (PC, NC, SC).

 

SAFETY, PROTECTION AND COMPATIBILITY

Evaluation switching units are equipped with protection against current overload. Units are sheltered by fuse T 50 mA. Electrical
equipment of protection group II. Electrical safety according to EN 61010-1.
Electromagnetic compatibility according to EN 55022, EN 61000-4-2, -3, -4, -5, -6, -11 and EN 6100-6-2.

Specifications

principe Capacitief, Geleidbaarheid
House
meetelement
Process Connection
uitgang Contacten
Nominal diameter
Brand Dinel
materiaal
Manometer diameter
glycerine
Hygienic Non hygienic
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