Stepper Eev Driver

XEV22D-1C1C0B

The XEV22D controller is capable of driving a wide variety of stepper electronic expansion valves. XEV22D regulates the superheat (SH) of the fluid that runs into refrigerating unit in order to obtain optimized performance and functioning of the evaporator independent by climatic or load conditions. XEV22D modules are equipped with two (2) probe inputs, one for a 4 to 20mA or 0 to 5V pressure transducer and another one for a NTC-EU, NTC-US or Pt100 temperature probe. The LAN connection transmits the pressure signal to other XEV modules; this allows the use of only one pressure transducer in multiplexed cabinet applications. There are also two (2) configurable digital inputs, the first one is free of voltage and the other one is at high voltage in order to simplify connections with cooling request signal. With the integrated display, it is possible to see the superheat (SH) value, the degree of valve opening or the probe values; the local keyboard allows programming the instrument without any other devices. An RS485 serial link connects the XEV22D