Danfoss EV210A Скачать руководство пользователя страница 27 | Manualshive

Страница: 27 / 44

Danfoss EV210A Скачать руководство пользователя страница 27

25

IC.PS.600.A4.02 / 520B2809

© Danfoss A/S (IA-MC/mhe) 05-2007 / 520B2809

IC.PS.600.A4.02 / 520B2809

Fault location

Probable cause

Remedy

No voltage on coil

Check whether valve is de-energised open or closed (NO

or NC):

1. Use a magnetic detector

2. Lift coil slightly and note whether it offers resistance

against lifting

Note: Never remove a coil with voltage applied - it may

burn out.

Check relay contacts. Check lead connections. Check

fuses.

Check to make sure the coil's electrical requirements are

the same as the installation supply. Measure the opera-

ting voltage at the coil. Permissible voltage variation:

±10% for dual frequency; dc and NO applications

+10% / -15% for ac on single frequency voltages

If necessary, replace coil with correct version.

Incorrect voltage/frequency

See page 29

Coil burnt out

Check coil data. If necessary, replace coil with correct

version.

Reduce differential pressure, e.g. by limiting inlet pres-

sure.

Diff. pressure too high

Check coil data and differential pressure. If necessary,

replace coil with correct version.

Diff. pressure too low

Replace valve

Dirt at diaphragm

2)

Clean diaphragm. If necessary, replace defective

component(s)

1)

.

Dirt in valve seat/dirt in arma-

ture/armature tube

2)

Clean valve; if necessary, replace defective component(s).

Corrosion

Replace defective component(s)

1)

Components missing after

valve dismantling

Fit missing component(s)

1)

.

Damaged/bent armature tube

Symptom:

Solenoid valve does not open

«
...
25
26
27
28
29
...
»

Содержание EV210A

Страница 1: ...IC PS 600 A4 02 520B2809 how to use solenoid valves INDUSTRIAL AUTOMATION MAKING MODERN LIVING POSSIBLE...

Страница 2: ...n the principles of pressure and temperature measurement electrical power and fluid control and includes Electro mechanical contactors Electronic contactors and motor controllers Pressure and temperat...

Страница 3: ...odernisation of existing plant The compact range has small physical dimensions for control of flow where space is limited The high performance range is a sturdy and universal valve program for control...

Страница 4: ...ircuit system typically with low differential pressures Symbolise valves used in an open sys tem Used typically for drinking water Differential pressure higher than 0 5 bar Note that this booklet desc...

Страница 5: ...from an EV220B solenoid valve 15 15 mm orifice B Brass body material G 12 ISO 228 1 1 2 inch connection E EPDM seal material NC Normally closed Identification Danfoss solenoid valves The coil type BB...

Страница 6: ...ed circuit open system or drain application Function de energised open or closed End connection Medium water oil air etc kv value Coil voltage Alternating ac or direct current dc Valve identification...

Страница 7: ...lenoid valve If pos sible increase the pipe diameter B Damp the water hammer by installing a flexible hose or flexible buffer ahead of the solenoid valve C Use a solenoid valve of the type EV220B 15 5...

Страница 8: ...g the valves manually when the manual override accessory is fitted 3 By connecting the Danfoss permanent mag net see Tools page 40 Note that the manual opening unit is not supplied as standard but as...

Страница 9: ...oss A S IA MC mhe 05 2007 520B2809 Installation Always flush out piping before installing a solenoid valve If there is dirt in the medium a filter should be installed ahead of the valve Dirt in the sy...

Страница 10: ...d valves Installing the coil Danfoss recommends that the solenoid valve be in stalled with coil upwards This minimises the risk of dirt collecting in the armature tube If clean media is used i e media...

Страница 11: ...Danfoss A S IA MC mhe 05 2007 520B2809 Direct operated valves Installation...

Страница 12: ...lways choose single frequency coils they give off less heat than double frequency versions The coil has three pins The middle pin is marked according to the illustration left and must be used for eart...

Страница 13: ...ving a coil voltage must be disconnected otherwise the coil will burn out Note the colours on the cable leads Yellow green is always earth The other leads should be for the phase and neutral supply To...

Страница 14: ...ems EV210B EV210A EV310B and EV310A direct operated solenoid valves EV220B EV220A and EV225B servo operated solenoid valves Capacity kv value Specifies how many m3 hour capacity water is passing throu...

Страница 15: ...sure Valves in the standard range are designed for pressure of max 6 30 bar the actual figure depends on the type of valve The product range includes valves for special application designed for pressu...

Страница 16: ...the valve will not be able to function optimally 2 A valve containing FKM NBR rubber can be used for water However for servo operated valves the water temperature must be kept below 60 C for FKM 90 C...

Страница 17: ...erful coil The coil power depends on the type of coil BA BB AC AM etc Other environmental factors In wet or very humid environments coils with IP 67 enclosure classification must be used Valve functio...

Страница 18: ...PS 600 A4 02 520B2809 IC PS 600 A4 02 520B2809 EV210B EV225B X X X X X X X X X X X X X X X EV250B EV220B EV310B X X X Valve overview High performance blue range Air and neutral gases Medium Water Oil...

Страница 19: ...t brass and stainless steel ensures that a broad variety of applications can be covered EV250B with assisted lift is especially to use in closed circuits with low differential pres sure but demanding...

Страница 20: ...18 IC PS 600 A4 02 520B2809 IC PS 600 A4 02 520B2809 EV210A EV310A EV220A X X X X X X X X X Valve overview Compact black range Air and neutral gases Water Oil Steam Medium...

Страница 21: ...way solenoid valve The valve is especially used in connection with air operated valves to allow air supply and air relief for the air actuator EV210A is a very compact direct operated 2 2 way solenoid...

Страница 22: ...rial EPDM is suitable for water and steam within the illustrated ranges Media table Direct operated valves Seal Material o C Medium EPDM1 FKM NBR PTFE Water glycols 30 to 140 0 to 60 0 to 100 10 to 90...

Страница 23: ...without cabel plug 220 230 V ac 50 Hz 110 V ac 50 60 Hz 24 V ac 50 Hz 24 V dc 018F7351 018F7360 018F7358 018F7397 Cable plug for BB coils O ring for fixing and sealing coil pack of 10 pcs 042N0156 01...

Страница 24: ...voltage frequency1 Code no 7 W without cabel plug 7 W without cabel plug 10 W without cabel plug 110 V ac 50 60 Hz 220 230 V ac 50 60 Hz 24 V dc 042N0825 042N0821 042N0824 Cable plug for AC coils 042...

Страница 25: ...Opening and closing times Closing times and water hammer Type Opening ms Closing ms EV210B 1 5 EV210B 3 EV210B 6 10 20 20 20 20 20 EV250B 12 EV250B 18 EV250B 22 100 150 150 100 100 100 EV220B 10 EV220...

Страница 26: ...performance type EV220B 15 50 closing times can be changed by replacing the equalising orifice at the inlet side of the valve see Water hammer page 15 and Spare parts page 34 To decrease water hammer...

Страница 27: ...tions 10 15 for ac on single frequency voltages If necessary replace coil with correct version Incorrect voltage frequency See page 29 Coil burnt out Check coil data If necessary replace coil with cor...

Страница 28: ...al pressure too low Check valve data incl differential pressure Replace valve with correct version Damaged or bent armature tube Replace valve Dirt at diaphragm Clean diaphragm If necessary replace de...

Страница 29: ...component s 1 Damaged bent armature tube Replace valve Pulsation in pressure line Differential pressure too high in open position Pressure on outlet side periodically higher than pressure on inlet si...

Страница 30: ...d by ac frequency Can be removed by chang ing to coil with rectifier see page 21 Water hammer when valve opens Water hammer when valve closes See Installation Differential pressure too high and or pul...

Страница 31: ...hort circuiting Check lead connections at coil When fault has been found replace coil See also Coil in section Installation Consider fitting a clip on style coil with addional sealing O ring for high...

Страница 32: ...armature and arma ture tube and an O ring Normally open components NO NO components are also available for Danfoss valves with other seal materials 1 See page 20 for seal material description Type Co...

Страница 33: ...07 520B2809 Spare parts high performance blue range Manual opening unit The manual opening unit for EV220B 15 50 can be used to open and close the valve in the event of power failure or when applying...

Страница 34: ...page 20 for description of seal materials EPDM1 versions FKM1 versions Avoids build up of contaminates that can block movement of the armature Permits use of more agressive media that would normally...

Страница 35: ...are also available for Danfoss EV220B valves with other seal materials see page 20 for seal material description The spare parts set con tains locking button and nut for coil armature with valve plate...

Страница 36: ...ts sets are also available for Danfoss EV220B valves with other seal materials 1 See page 20 for description of seal materials The spare parts set contains locking button and nut for coil armature wit...

Страница 37: ...50B 12 22 NC FKM seal material The spare parts kit comprises 1 O ring between armature tube and cover 2 Service element consisting of an armature with valve plate and spring fitted on the diaphragm Va...

Страница 38: ...20B2809 IC PS 600 A4 02 520B2809 Spare parts high performance blue range Spare parts kit for EV310B The spare parts kit compries an armature with mounted spring Type Seal Material Code no NC FKM 032U2...

Страница 39: ...ing diaphragm and O ring Type Code no EV225B 6 10 032U3171 EV225B 15 032U3172 EV225B 20 25 032U3173 Spare coils for EV225B 6 25 Coil voltages Code no 24 V 50 Hz 10 W ac 032K1436 82 48 V 50 Hz 10 W ac...

Страница 40: ...black range Spare parts for EV210A NC 7 The spare parts set comprises the follow ing parts 1 Armature tube 2 Armature with valve plate and spring 3 Flange 4 Disk 5 O ring 6 Nut 7 2 screws for connect...

Страница 41: ...A 6 10B EPDM 042U1000 EV220A 6 10B NBR 042U1001 EV220A 6 10B FKM 042U1002 EV220A 12 14B EPDM 042U1003 EV220A 12 14B NBR 042U1004 EV220A 12 14B FKM 042U1005 EV220A 18 22B EPDM 042U1006 EV220A 18 22B NB...

Страница 42: ...alves without wiring up the electrical coil Permanent magnet Please contact your local Danfoss office to obtain these popular tools This handy key ring tool reacts to magnetic fields from solenoid val...

Страница 43: ...mental effects Having ISO 14001 certification and EMAS1 reg istration proves these traditional Danfoss values to be fully implemented in the Industrial Controls unit Environmental certifications Danfo...

Страница 44: ...IC PS 600 A4 02 520B2809 05 2007 Danfoss A S IA MC frz...

Отзывы:

Нет отзывов