EMERSON XEV30K Stepper Valve Actuator User Guide

June 12, 2024
Emerson

EMERSON XEV30K Stepper Valve Actuator

General Description

XEV30K is a stepper valve actuator intended either for bipolar stepper valves or unipolar stepper valves. This device has been used with iPro-Based case controllers.

The maximum configuration of hardware is equipped with:

  • 3 configurable valve outputs to drive bipolar or unipolar valves.

  • 6 Configurable analog inputs:
    > Pb4/Pb5/Pb6: 4 to 20mA/0 to 5V/Pt1000; NTC/NTC_CPC
    > Pb1/Pb2/Pb3: NTC/NTC_CPC/Pt1000

  • LAN serial line to communicate with iPro series.

Absolute Maximum Power

XEV30K is able to drive a wide range of stepper valves. The following table contains the maximum values of current that the actuator can supply to the stepper wiring. Select the current transformer depending on the application using the following table: each kind of driving and functioning is reported that the Dixell transformer will use.

NOTE: The electrical power absorption of the valve can be unrelated to refrigeration power that valve has. Before using the actuator, please read the technical manual of the valve supplied by the manufacturer and check the maximum current used to drive the valve in order to verify that they are lower than those indicated below.

| CONFIGURATION
---|---
ONE VALVE| TWO VALVES| THREE VALVES
| Driving Mode| Full Step| Full Step|
Valve Type| Bipolar Valves (4 wires)| Current 0.9A max >TF20D| Current 0.9A max for each valve > TF40D| Current 0.9A max for each valve > TF60D -TBC
Unipolar Valves (5-6 wires)| Current 0.33A max >TF20D| Current 0.33A max for each valve > TF20D| Current 0.33A max for each valve > TF40D-TBC

Wiring Diagram

Three Valve Configuration

Absolute Maximum Power

Valve Connections

Reference the following table to understand the connection mode for valves of different manufacturers.

Serial Line – CanBus

The device can communicate through CanBus serial line only when a correct address is set. The addressing is made through the dip-switch called Address as demostrated in the following drawing:
Serial Line - CanBusSerial Line -
CanBus

LEDs Meaning

Additional LED are added with the following functions, not reported on the wiring diagram.

LED MODE MEANING
PWR ON On The device is correctly powered
ALARM On An alarm is present
TX/RX Blinking CanBus or LAN activity, communication activated
TX/RX On No link
OPEN V1 Blinking Valve 1 is opening
OPEN V1 On Valve 1 completely opened
CLOSE V1 Blinking Valve 1 is closing
CLOSE V1 On Valve 1 completely closed
OPEN V2 Blinking Valve 2 is opening
OPEN V2 On Valve 2 completely opened
CLOSE V2 Blinking Valve 2 is closing
CLOSE V2 On Valve 2 completely closed
OPEN V3 Blinking Valve 3 is opening
OPEN V3 On Valve 3 completely opened
CLOSE V3 Blinking Valve 3 is closing
CLOSE V3 On Valve 3 completely closed

Dimensions

10 DIN Case – Dimensions

Dimensions

Open Board – Preliminary Dimensions

Dimensions

Technical Data

Case 10 DIN or open board
Connectors Disconnectable terminal block ≤ 2,5 mm2 or screw connector
Power Supply 24Vac/dc
Absorption 60VA max
Probe Inputs 3 configurable as NTC/NTC_CPC/Pt1000

3 configurable as NTC/NTC_CPC/Pt1000, 4 to 20mA/0 to 5V

Valve Output(s)| See table on page 2
Serial Connection| LAN Bus
Data Storing| Non volatile memory (EEPROM)
Kind of Action| 1B; Pollution Grade: 2; Software Class: A
Rated Impulsive Voltage| 2500V; Over Voltage Category: II
Operating Temperature| 10 to 60 °C; Storage Temperature: -30 to 85 °C
Relative Humidity| 20 to 85% (no condensing)
Measuring and Regulation Range| NTC Probe: -40 to 110°C
Pt1000 Probe: -50 to 100°C
Pressure Transducer: -1.0 to 50.0 Bar
Resolution| 0,1°C or 1 °F; Accuracy@ 25°C : ±0,5 °C ±1 digit

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Document Part # 026-4284 Rev 0

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References

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