Wilo ER 2, ER 3-4 Installation And Operating Instructions Manual

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Page 1

Wilo-ER 2/ER 3-4

D Einbau- und Betriebsanleitung

GB Installation and Operating Instructions

F Notice de montage et de mise en service

NL Montage- en bedieningsvoorschriften

E Instrucciones de instalación y servicio

I Istruzioni di montaggio, uso e manutenzione

H Beépítési és üzemeltetési utasítás

PL Instrukcja montażu i obsługi

CZ Návod k montáži a obsluze

RUS

Instrukciä po montaΩu i qkspluataciœ

2 025723 -Ed.03/2007-09-DDD

Page 2

Fig. 1

CO-ER System

Economy Regeltechnik

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Fig. 2

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Fig. 3

Page 5

Fig. 4

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Fig. 6

Fig. 5

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1. Allgemeines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Sicherheit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3. Transport und Zwischenlagerung . . . . . . . . . . . . . . . . . . . . . . 4

4. Beschreibung von Erzeugnis und Zubehör . . . . . . . . . . . . . . . 4

5. Aufstellung / Einbau . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6. Inbetriebnahme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

7. Wartung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

8. Störungen, Ursachen und Beseitigung . . . . . . . . . . . . . . . . . . 5

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2. Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3. Transport and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4. Description of the Product and Accessories . . . . . . . . . . . . . . 7

5. Siting / Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6. Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

8. Faults - Causes and Remedies . . . . . . . . . . . . . . . . . . . . . . . . 8

1. Généralités . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2. Sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3. Transport et stockage avant utilisation . . . . . . . . . . . . . . . . . . 10

4. Description du produit et des accessoires . . . . . . . . . . . . . . . 10

5. Installation / Montage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6. Mise en service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

7. Entretien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8. Pannes, causes et remèdes . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1. Algemeen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2. Veiligheid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3. Transport en opslag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4. Produktomschrijving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5. Plaatsing / inbouw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6. Inbedrijfname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7. Onderhoud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

8. Storingen, oorzaken en oplossingen . . . . . . . . . . . . . . . . . . . . 14

1. Generalidades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2. Seguridad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3. Transporte y almacenamiento . . . . . . . . . . . . . . . . . . . . . . . . . 16

4. Descripción de producto y accesorios . . . . . . . . . . . . . . . . . . 16

5. Instalación y montaje . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6. Puesta en marcha . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7. Mantenimiento . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8. Fallos, causas y soluciones . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1. Generalità . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2. Sicurezza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3. Trasporto e magazzinaggio . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4. Descrizione del prodotto ed accessori . . . . . . . . . . . . . . . . . . 19

5. Montaggio / installazione . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6. Messa in esercizio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

7. Manutenzione . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

8. Blocchi, cause e rimedi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1. Dane ogólne . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2. Bezpieczeƒstwo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3. Transport i magazynowanie . . . . . . . . . . . . . . . . . . . . . . . . . 25

4. Opis wyrobu i wyposa˝enia dodatkowego . . . . . . . . . . . . . . 25

5. Ustawienie / Monta˝ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6. Uruchomienie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

7. Obs∏uga . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

8. Awaria, przyczyny i usuwanie . . . . . . . . . . . . . . . . . . . . . . . 26

1. Általános rész . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2. Biztonság . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3. Szállítás és közbensŒ raktározás . . . . . . . . . . . . . . . . . . . . 22

4. A termék és tartozékai leírása . . . . . . . . . . . . . . . . . . . . . . . 22

5. Felállítás / beépítés . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6. Üzembehelyezés . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7. Karbantartás . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8. Üzemzavarok, okaik és elhárításuk . . . . . . . . . . . . . . . . . . 23

Page 8

1. V‰eobecné informace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2. Bezpeãnost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3. Pﬁeprava a skladování . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4. Popis v˘robku a pﬁíslu‰enství . . . . . . . . . . . . . . . . . . . . . . . 28

5. Instalace / montáÏ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6. Uvadûní do provozu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7. ÚdrÏování . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8. Poruchy, jejich pﬁíãiny a odstraÀování . . . . . . . . . . . . . . . . . 29

RUS

1. Obwie poloΩeniä . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2. Mery beqopasnosti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3. Transportirovanie i xranenie . . . . . . . . . . . . . . . . . . . . . 31

4. Opisanie izdeliå i prinadleΩnostej . . . . . . . . . . . . . . 31

5. Ustanovka / sborka . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6. Vvod v qkspluataciœ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7. ObsluΩivanie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8. Neispravnosti, prihiny i sposoby ustraneniå . . . . . . . 32

Page 9

D CE-Konformitätserklärung

Hiermit erklären wir, daß dieses Aggregat folgenden einschlägigen Bestimmungen entspricht:

Elektromagnetische Verträglichkeit 89/336/EWG i.d.F. 92/31/EWG, 93/68/EWG

Angewendete harmonisierte Normen, insbesondere

EN 50 081-1, EN 50 082-1

GB EC declaration of conformity

We hereby declare that this unit complies with the following relevant provisions:

Resistance to electromagnetism 89/336/EWG in this version 92/31/EWG, 93/68/EWG

Applied harmonized standards in particular:

EN 50 081-1, EN 50 082-1

F Déclaration de conformité CE

Par la présente, nous déclarons que cet agrégat sitisfait aux dispositions suivantes:

Compatibilité électromagnétique 89/336/CEE, 92/31/CEE, 93/68/CEE

Normes utilisées harmonisées, notamment

EN 50 081-1, EN 50 082-1

NL EG-verklaring van overeenstemming

iermede verklaren wij dat deze machine voldoet aan de volgende bepalingen:

Elektromagnetische tolerantie 89/336/EEG, 92/31/EEG, 93/68/EEG

Gebruikte geharmoniseerde normen, in het bijzonder

EN 50 081-1, EN 50 082-1

E Declaración de conformidad CE

Por la presente declaramos que esta unidad satisface las disposiciones pertinentes siguientes:

Compatibilidad electromagnética 89/336/CEE, 92/31/CEE, 93/68/CEE

Normas armonizadas utilizadas particularmente

EN 50 081-1, EN 50 082-1

I Dichiarazione di conformità CE

Con la presente si dichiara che le presenti pompe sono conformi alle seguenti direttive di armonizzazione

Compatibilità elettromagnetica 89/336/CEE, 92/31/CEE, 93/68/CEE

Norme armonizzate applicate, in particolare

EN 50 081-1, EN 50 082-1

SF CE-standardinmukaisuusseloste

Ilmoitamme täten, että tämä laite vastaa seuraavia asiaankuuluvia määräyksiä:

Sähkömagneettinen soveltuvuus 89/336/ETY, 92/31/ETY, 93/68/ETY

Käytetyt yhteensovitetut standardit, erityisesti

EN 50 081-1, EN 50 082-1

S EEC konformitetsdeklaration

Härmed förklaras att denna maskin uppfyller följande bestämmelser:

Elektromagnetisk kompatibilitet 89/336/EEC i denna version, 92/31/EEC, 93/68/EEC

Tillämpade harmoniserade normer, särskilt:

EN 50 081-1, EN 50 082-1

H EK. azonossági nyilatkozat

Ezennel kijelentjük, hogy az agregát a megkívánt alanti feltételeknek megfelel:

Elektromagnetikus ÖsszeegyeztethetŒség 89/336/EWG, 92/31/EWG, 93/68/EWG

Alkalmazott, harmonizált normák, különösen az

EN 50 081-1, EN 50 082-1

GR Δήλωση συμμρφωσης με τους

κανονισμούς CE

Δηλώνουμε τι το προϊν αυτ ικανοποιεί τις ακλουθες διατάξεις:

Ηλεκτρομαγνητική συμβαττητα 89/336/CEE, 92/31/CEE, 93/68/CEE

Εναρμονισμένα χρησιμοποιούμενα πρτυπα, ιδιαίτερα

EN 50 081-1, EN 50 082-1

CZ Osvûdãení o shodnosti s normami EU

Prohla‰ujeme tímto, Ïe toto zaﬁízení odpovídá následujícím pﬁíslu‰n˘m ustanovením:

Elektromagneticá sná‰enlivost 89/336/EHS vãetnû dodatkÛ, 92/31/EHS, 93/68/EHS

PouÏité souhlasné normy, zejména:

EN 50 081-1, EN 50 082-1

PL OÊwiadczenie zgodnoÊci EC

Niniejszym oÊwiadczamy, ˝e pompa odpowiada nast´pujàcym w∏aÊciwym dla niej dyrektywom:

OdpornoÊç elektromagnetyczna EC 89/336/EEC w tej wersji, 92/31/EEC, 93/68/EEC

Zastosowano normy zharmonizowane, w szczególnoÊci:

EN 50 081-1, EN 50 082-1

RUS Zaåvlenie o sootvetstvii normam,

dejstvuœwim v Evropejskom Soobwestve

Nastoåwim dokumentom zaåvlåem, hto dannaå ustanovka sootvetstvuet sleduœwim postanovleniåm:

Qlektromagnitnaå sovmestimostæ 89/336/CEE, 92/31/CEE, 93/68/CEE

Ispolæzovavπieså garmonizirovannye standarty i normy, v hastnosti

EN 50 081-1, EN 50 082-1

TR Uygunluk Belgesi

As¸agˇí´daki cihazlarí´n takibi standartlara vygun oldugˇunu temin ederiz:

Elektromanyetik Uyumluluk 89/336/EWG i.d.F., 92/31/EWG, 93/68/EWG

Özellikle kullaní´lan Normlar

EN 50 081-1, EN 50 082-1

DK EF-overensstemmelseserklæring

Det erklæres hermed, at dette udstyr er i overensstemmelse med følgende bestemmelser:

Elektromagnetisk kompatibilitet: 89/336/EØF i denne udgave, 92/31/EØF, 93/68/EØF

Anvendte harmoniserede normer, især:

EN 50 081-1, EN 50 082-1

N EU-overensstemmelseserklæring

Det erklæres herved at dette utstyret stemmer overens med følgende bestemmelser:

Elektromagnetisk kompatibilitet 89/336/EEC og følgende, 92/31/EEC, 93/68/EEC

Anvendte harmoniserte normer, i særdeleshet

EN 50 081-1, EN 50 082-1

WILO AG Nortkirchenstraße 100 44263 Dortmund · Germany

2011681.3

Quality Management

Page 10

ENGLISH

1 General

Installation and commissioning by qualified personnel only!

1.1 Fields of application

Switch unit for the automatic control of low capacity pump units consisting of 2 to 4 pumps in conjunction with – water supply installations, – fire fighting services.

1.2 Product Specification

1.2.1 Technical data

Power supply requirements: 3~400 V ± 10 %, 50/60 Hz

3~230 V ± 10 %, 50/60 Hz

1~230 V ± 10 %, 50/60 Hz Control circuit voltage: 24 V DC Max. switch rating: P2 ≤ 4 kW of each pump at 3~400 V

P2 ≤ 3 kW of each pump at 3~400 V

for 4-pump plant Max. current rating: 8.5 A Degree of protection: IP 41 Supply side fuses: 35 A, gL Ambient temperature: 0 – 40 °C

2 Safety Notes

Safety instructions as laid down in the Installation and Operating Instructions of the connected pumps must be referred to and strictly complied with.

3 Transport and Storage

The unit must be protected from moisture and mechanical damage due to impact or shock. Electronic components must not be subjected to temperatures outside the limits from 10 °C to 50 °C.

4 Description of Product and Accessories

4.1 Description of the Control Unit

The Economy Regulating Controller (ER-Control Unit) controls and manages multi-pump plant up to a maximum of 4 pumps in conjunction with diverse pressure and level sensors. The pumps are controlled to switch on or off successively cycle according to water supply demand. Spreading the total required capacity onto a number of lowcapacity pumps offers the advantage of a rather exact adaption of plant capacity to actual demand within the respectively most favourable capacity range of the pumps. This configuration achieves high efficiency as well as the most economical operation of the plant. The plant is activated for automatic operation and so far at standstill. If, on opening an outlet fixture the pressure in the distributing pipe system drops below the switch-on level p

min the base-load pump will

be activated (Fig. 5, duty curve chart). If the system pressure, due to increasing supply demand, again drops below the switch-on level, the first of the peak-load pumps will be activated to run in parallel to the base-load pump, etc. Inversely, the system pressure will rise with reduced supply demand. On reaching the first switch-off level p

max

one of the peak-load pumps will be deactivated. On again reaching the switch-off level the next peak-load pump will be deactivated, etc. The base-load pump will only be switched-off at a still higher system pressure, the 2nd switch-off level p

max

. At this pressure level the flow rate is still very low. The switch-on and -off processes of the peak-load pumps will be time-delayed in order to avoid hunting. The time delay

can be adjusted at the potentiometer (Fig. 2/3, Item P8) between 0 and 2 minutes. The delay action begins with the start of the 1st pump, but only if the pump(s) had not yet run the set time. The switch-on and -off levels can be set at the potentiometers p

min,

pmax1, pmax2(Fig. 2/3, Items P5, P6, P7 and Chart I). Switch-off pressure values 1 and 2 are differential values based on the respectively lower positioned pressure level. This means that if the pressure settings at the potentiometers have e.g. been set to p

min = 4 bar, pmax

= 2 bar

ATTENTION!

and pmax2= 1 bar the actual on-/off switch level are: switch-on level 4 bar, 1st switch-off level 6 bar, 2nd switch-off level 7 bar.

4.2 Unit front panel (Fig. 1) The ER 2/ER 3-4 control unit serves to automatically control a multipump set. The unit front panel contains the following switches or signals respectively: – Main switch (Item 1) 3-pole (L1, L2, L3)

0 OFF I ON

– 2 Selector switches, each one for 2 pumps respectively (Item 2/3)

0OFF for both pumps



Manual operation; to start No. 1 or No. 2 pump independent of current system pressures and without safety functions. WSK- (thermal winding contacts) function remains activated. This switch setting is intended for test operation only; manual operation runs for approx.

1.5 minutes and will then automatically stop.

AutomaticAutomatic operation with all safety functions, electronic

motor overload protection, low-water cut-out. Automatic 1: No. 1 pump runs under automatic control, No. 2 pump is switched-off (e.g. due to a fault event). Automatic 2: No. 2 pump runs under automatic control, No. 1 pump is switched-off (e.g. due to a fault event). Automatic 1+2: Both pumps operate in peak-duty mode as baseand peak-load pumps. No. 2 selector switch: as for No.1 selector switch however, controlling Nos. 3. and 4 pumps. With both selector switches set to Automatic 1+2 and 3 + 4 all pumps run in a collective mode as base-load peak pumps. Stop of one pump in the automatic setting will not affect the operation of the remaining pumps, which will continue to run collectively.

– RUN-light (Item 5) for each pump: steady green light indicates

troublefree run of the respective pump, blinking green light on motor fault.

– FAULT-light (Item 4): Red light indicates fault in the water circulating

system.

Options: – Digital system pressure display – Hour-run meter for each pump. – Remote individual fault signalling. – IP 54 degree of protection. – Low-water cut out protection.

4.3 Unit functions (Fig. 2/3) – Integrated electronic overload protection: To safeguard against

motor overloading it is necessary to set the overload cut-out of each individual motor at its respective potentiometer (Fig. 2/3, Items P1, P2, P3, P4) to the nameplate FLC-value. WSK-terminals must be bridged.

– External overload protection WSK/ PTC: Motors are equipped with

integrated thermal windings contacts (WSK) or with PTC-sensor require wiring of the WSK or PTC of each motor to the terminals and setting the potentiometers (Fig. 2/3, Item P1, P2, P3, P4) to its maximum value (righthand limit).

– Time-delayed switch-off: The time-delay for stopping the base-load

pump to be set at potentiometer (Fig. 2/3, Item P8) between 0 and 2 minutes. It is activated on starting the 1st pump.

– Low water cut-out: Pumps used in conjunction with water supply or

fire fighting services must not be allowed to run dry. To protect from dry-running a pressure limit switch or a float switch are provided at the unit inlet side which switch-off the pumps in succession on lack of water. Reset is automatic after restoration of inlet water availability.

– Overflow alarm: The unit electronics for dry-run protection can also

be utilized for overflow alarm in conjunction with submersible pumps. This requires switch action reversal by resetting the hook switch (see Chart 2). On closing of the float contacts the red fault light will be on, SSM (collective fault signal) will act as an alarm. The pump however will continue to run. Reset is automatic on ceasing of overflow.

– Low water cut-out time delay: Times of pump switch off action on

lack of water as well as restart after resetting the fault signal can be

Page 11

ENGLISH

delayed. The delay time can be set at potentiometer (Fig. 2/3, Item P9) between 2 seconds and 2 minutes.

– Peak-load switching time delay: Starts of peak-load pumps are

delayed by approx. 4 secs., stops by approx. 8 secs. These delay times are firmly programmed and can thus not be altered.

– Fault duty changeover: Duty of a faulty pump will automatically be

taken over by another pump.

– Pump duty cycling: If the same pump were always be used for

base-load duty it would be subject to higher wear than the peakload pumps. In order to distribute running time evenly on all pumps and thus to forestall a premature failure of a pump, the function ‘Pump Duty Cycling’ has been provided, meaning that on each new start of the plant the next successive pump assumes the base-load function. Duty changeover also takes place when one or more pump(s) are continously running (approx. once every 6 hours).

– Test run: When set to ‘Test run’ one pump respectively will start

automatically after 6 hours to run for 15 seconds. The test intervals are firmly programmed and cannot be influenced by either the pump running times or low water cut-out or by broken gauge tubes. Test run is e.g. important in the case of fire fighting services. Test run function can be omitted by closing the hook switch S 2 (Fig. 2/3).

4.4 Scope of supply

Control unit O. & M. Manual

5 Siting/Installation

5.1 Installation

The control unit is supplied fully mounted to and as part of the pump unit set.

5.2 Electrical wiring (Fig. 2/3) All electrical site works to be carried out by qualified and

locally licenced tradesman in strict accordance with locally ruling regulations.

– Power supply and voltage must correspond to the name plate speci-

fication of the pump/motor to be connected. – Locally ruling earthing regulations must be strictly complied with. – Note regarding the screwless terminals: Fig. 6 depicts how to open

the terminals with the aid of the screwdriver provided. Any one ter-

minal can only accommodate one lead respectively. – Wiring connections to the terminal strip are to made as follows:

(L), (N), PE:

Power connection 1~230 V,

Terminals at X0 to be bridged according to “230 V” on the board.

L1, L2, L3, PE:

Power connection 3~400 V,

Terminals at X0 to be bridged according to “400 V” on the board.

(Factory settings)

L1, L2, L3, PE:

Power connection 3~230 V,

Terminals at X0 to be bridged according to “230 V” on the board.

U1/V1, U2/V2, U3/V3, U4/V4, PE:

Single phase wire connections to Nos. 1 to 4 pump motors.

U1, V1, W1 up to U4, V4, W4, PE:

Three phase wire connections to Nos.1 to 4 pump motors.

SM/WM:

Terminals for a remote collective Fault signal (pump failure or low

water cut-out), volt-free SPDT (single pole, double throw) contacts,

max. switch rating 250 V, 1 A.

BM1 to BM 4:

Terminals for remote Run signal individually for each pump , volt-free

NO (nomally open contacts), max. switch rating 250 V – 1 A. Con-

tacts are closed with the motor running.

SM1 to SM4:

Terminals for a remote Fault signal individually for each pump, volt-

free SPDT (single pole, double throw) contacts, max. switch rating

250 V, 1 A. Contacts change over on motor fault event.

WSK1 to WSK4:

Terminal connections to motor integrated overload protection devi-

ces WSK (thermal winding contacts) or PTC-sensors.

+ and IN:

Terminals connections to pressure sensor (4 – 20 mA) for On/Off pump control.

WM:

Dry-run protection, the various wiring connections are shown in Fig. 4. Hook switches and potentiometers located on the unit board must be set for the different unit functions. These are described in Charts I and II.

6 Commissioning

All functional adjustments on the ER 2/ER 3-4 control unit as laid out in Charts I and II must have been set prior to initially starting the pumping plant.

7 Maintenance

The control unit is maintenance-free.

8 Faults – Causes and Remedies

Blinking green light:

Motor overload cut-out has responded. No automatic reset after rectification of fault cause. To reset: Switch selector switch to ‘0’. If need be, let motor cool down first.

Red light:

Switch-off due to low-water. Automatic reset after rectification of fault cause.

SM1 to SM 4:

Individual Fault report, ‘Green LED blinks’ and remote Fault signal SM/WM changes.

SM/WM:

Fault report at control unit and remote collective Fault signal on plant cut-out due to low water. Automatic reset after rectification of fault cause.

If the fault cannot be remedied please contact your Installer or your nearest WILO service.

Page 12

ENGLISH

Technical modifications reserved !

Chart I: Functions of potentiometers and hook switches (Fig. 2/3)

Switch/Pot. Functions

Potentiometer for FLC-settings: P1 for No. 1 pump P2 for No. 2 pump P3 for No. 4 pump P4 for No. 3 pump

P8 to set pump stop time delay (0 –2 min)

P9 to set pump stop time delay on low water cut-out (0 –2 min)

Setting pressure setpoints (see pump duty chart, Fig. 5)

max

P5 – base-load pump switch-off pressure

max

P6 – base-load pump switch-off pressure

pmin P7 – switch-on pressure for all pumps

S 1 Effect reversal for input low-water cut-out:

S 1 open: Plant runs on closed contacts on terminals WM,

plant stops on open contacts on terminals WM

S 1 closed: Reverse action.

S 2 Test run:

S 2 open: Test run activated S 2 closed: Test run deactivated

S 5 Sensor input:

S 5 open: Plant stops on opening of sensor contacts (without fault signal) S 5 closed: Plant runs on opening of sensor contacts (oll pumps)

S 3, 4, 7 Setting to the number of controlled pumps:

No. of pumps: Hook switch positions: S 3 S 4 S 7

1: 100 2: 010 3: 001 4: 000

0 open, 1 closed

Motor fuses, 6.3 diam. x 32 mm, 16 amps inert, 440 V

for pumps: Phases: L01L02L03 F1-3 P1 Fuses: F01F02F03 F4-6 P2 F04F05F06

F11-13 P3 F11 F12 F13 F14-16 P4 F14 F15 F16

F7 Control circuit fuse: 6,3 diam. x 32 mm, 0.1 mA, 250 V

Chart II: Settings of hook switches and potentiometers for different applications

Switch/Pot. Pressure boosting Fire services

S 5 *0* *1* S 2 0 0 S 1 0 0

Set FLC value to motor name plates

0.5 0.5

* 0  open, 1  closed

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