EMERSON XEV20D Stepper Valve Actuator User Guide
- June 12, 2024
- Emerson
Table of Contents
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.
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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.
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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.
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Warning: Disconnect all electrical connections before any kind of maintenance.
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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.
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Consider the maximum current which can be applied to each relay (see Technical Data).
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Ensure that the wires for probes, loads and the power supply are separated and far enough from each other, without crossing or intertwining.
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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
|
Driving Mode
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Full Step
|
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)
| Connection Numbering | SPORLAN | SAGINOMIYA |
|---|---|---|
| 4 | Orange | Orange |
| 2 | Red | Red |
| 3 | Yellow | Yellow |
| 1 | Black | Black |
| 5 – Common | Gray | Gray |
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.
| 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 |
Technical Data
| Case | 4 DIN |
|---|---|
| Connectors | Disconnectable terminal block ≤ 2,5 mm2 for valve outputs |
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.
Visit our website at:
www.climate.emerson.com for the latest
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For Technical Support call 833-409-7505
or email Cold Chain.
TechnicalServices@Emerson.com
References
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