EMERSON XEV20D Stepper Valve Actuator User Guide

EMERSON XEV20D Stepper Valve Actuator User Guide

General Warnings

PLEASE READ BEFORE USING THIS MANUAL

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• This manual is part of the product and should be kept near the instrument for easy and quick reference.

• The instrument shall not be used for purposes different from those described hereunder.
  It cannot be used as a safety device.

• Check the application limits before proceeding.

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SAFETY PRECAUTIONS

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• Check if the supply voltage is correct before connecting the instrument.

• Do not expose to water or moisture: use the controller only within the operating limits avoiding sudden temperature changes with high atmospheric humidity to prevent formation of condensation.

• Warning: Disconnect all electrical connections before any kind of maintenance.

• Fit the probe where it is not accessible by the end user.
  The instrument must not be opened.

• In case of failure or faulty operation send the instrument back to the distributor or to “Dixell S.p.A.” with a detailed description of the fault.

• Consider the maximum current which can be applied to each relay (see Technical Data).

• Ensure that the wires for probes, loads and the power supply are separated and far enough from each other, without crossing or intertwining.

• In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel with inductive loads could be useful.

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General Description

XEV20D is a stepper valve actuator intended either for bipolar stepper valves or unipolar stepper valves.
This device has been used with ISaGRAF® environment and with programmable devices of iPRO series or in combination with instruments of i-CHILL 200CX series.

The maximum configuration of hardware is equipped with:

• 2 configurable valve outputs to drive bipolar or unipolar valves
• Pb1/Pb2 configurable analog inputs: NTC/PTC/Pt1000
• Pb3/Pb4 configurable analog inputs: 4 to20mA/0 to5V/Pt1000
• CanBus serial line
• LAN to communicate with instrument of the same series or devices of i-CHILL200CX series

Absolute Maximum Power

XEV20D is able to drive a wide range of stepper valves, in the following table are indicated the maximum values of current that the actuator can supply to the stepper wiring.
Select the current transformer depending on application seeing the following table, for each kind of driving and functioning is reported the Dixell transformer to 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.

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CONFIGURATION

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ONE VALVE

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TWO VALVES

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Driving Mode

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Full Step

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Full Step

Valve Type

| Bipolar Valves (4 wires)| Current 0.9A max

TF20D| Current 0.9A max for each valve
TF40D
Unipolar Valves (5-6 wires)| Current 0.33A max
TF20D| Current 0.33A max for each valve
TF20D

Wiring Diagram

One Valve Configuration

Two Valves Configuration

IPro Connections

Valve Connections

Pay attention to the following table for a quick reference on the connection mode for valves of different manufacturers:

4 WIRES VALVES (BIPOLAR)

Connection Numbering| **ALCO EX*| ALCO EX5/6| SPORLAN SEI- SHE| DANFOSS ETS**
---|---|---|---|---
4| White| Blue| White| Black
2| Yellow| Brown| Black| White
3| Brown| Black| Red| Red
1| Green| White| Green| Green
5 – Common| —-| —-| —-| —-

5-6 WIRES VALVES (UNIPOLAR)

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 you can see in the following drawing:

Figure 6-1 – CanBus Serial Line

Figure 6-2 – CanBus Device

The following table has to be used to configure ISaGRAF lines to connect the valve actuator.

LINE| GEN_LINE| GEN_AO| GEN_AO| GEN_AO| GEN_A1| GEN_DI
---|---|---|---|---|---|---
channel number| | 4| 2| 7| 4| 3
line_num| CanBus Number| CanBus Number| CanBus Number| CanBus Number| CanBus Number| CanBus Number
name| CAN| | | | |
par_1| CanBus Number| CanBus Number| CanBus Number| CanBus Number| CanBus Number| CanBus Number
par_2| CAN node address| 16| 17| 26| 1| 31
par_3| 10| | | | |
I/O 1| | EVV_StepsOutp ut Valve 1| EEV_OutRateV alve 1| EVV_ProbeTCo nfiguration Valve 1| EVV_Temperat ure Valve 1| EVV_ValvePosi tion Valve 1
LINE| GEN_LINE| GEN_AO| GEN_AO| GEN_AO| GEN_A1| GEN_DI
---|---|---|---|---|---|---

I/O 2

| | EVV_StepsOutp ut Valve 2| EEV_OutRateV alve 2| EVV_ProbeTCo nfiguration Valve 2| EVV_Temperat ure Valve 2| EVV_ValvePosi tion Valve 2

I/O 3

| | EVV_Steps MaxValve 1| | EVV_ProbePCo nfiguration Valve 1| EVV_Pressure Valve 1|

I/O 4

| | EVV_Steps MaxValve 2| | EVV_ProbePCo nfiguration Valve 2| EVV_Pressure Valve 2|
I/O 5| | | | EVV_OutPhasC urrent Valve 1| |
I/O 6| | | | EVV_OutPhasC urrent Valve 2| |
I/O 7| | | | EVV_OutValveC onfiguration| |
I/O 8| | | | | |

LEDs Meaning

The following table has to be used to configure ISaGRAF lines to connect the valve actuator.

Technical Data

and minifit connector for low voltage section
Power Supply| 24Vac/dc; Absorption: 40VA max.
Probe Inputs| 2 configurable as NTC/PTC/Pt1000
2 configurable as NTC/PTC/Pt1000/4 to 20mA/ to 5V
Valve Output(s)| See table on page 3
Serial Connection| CanBus and LAN for iCHILL200CX
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| PTC Probe: -50 to150°C
NTC Probe: -40 to110°C
Pt1000 Probe: -50 to 100°C
Pressure Transducer: -1.0 to 50.0 Bar
Resolution| 0,1°C or 1 °F; Precisione@ 25°C: ±0,1 °C ±1 digit

CUSTOMER SUPPORT

The contents of this publication are presented for informational purposes only and they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability.
Emerson reserves the right to modify the designs or specifications of such products at any time without notice.
Responsibility for proper selection, use and maintenance of any product remains solely with the purchaser and end-user.
©2022 Emerson is a trademark of Emerson Electric Co.

This document may be photocopied for personal use.
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For Technical Support call 833-409-7505 or email Cold Chain. [email protected]

References

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