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LV Motors / Ex-motors instructions 99-09

2 3

These instructions do not cover all details or variations in equipment nor provide for every possible condition to be

met in connection with installation, operation or maintenance. Should additional information be required, please

contact the nearest ABB Sales Office.

Motor trouble shooting chart

Your motor service and any trouble shooting must be handled by qualified persons with have proper tools and

equipment.

TROUBLE

CAUSE

WHAT TO DO

Motor fails to start

Blown fuses

Replace fuses with proper type and rating.

Overload trips

Check and reset overload in starter.

Improper power supply

Check to see that power supplied agrees with

motor rating plate and load factor.

Improper line connections

Check connections with diagram supplied with

motor.

Open circuit in winding or control

Indicated by humming sound when switch is

switch

closed. Check for loose wiring connections. Also,

ensure that all control contacts are closing.

Mechanical failure

Check to see if motor and drive turn freely. Check

bearings and lubrication.

Short circuited stator

Indicated by blown fuses. Motor must be rewound.

Poor stator coil connection

Remove end bells, locate with test lamp.

Rotor defective

Look for broken bars or end rings.

Motor may be overloaded

Reduce load.

Motor stalls

One phase may be open

Check lines for open phase.

Wrong application

Change type or size. Consult manufacturer.

Overload

Reduce load.

Low voltage

Ensure the rating plate voltage is maintained.

Check connection.

Open circuit

Fuses blown, check overload relay, stator and

push buttons.

Motor runs and then

Power failure

Check for loose connections to line, to fuses and

dies down

to control.

Motor does not come

Not applied properly

Consult supplier for proper type.

up to speed

Voltage too low at motor terminals

Use higher voltage or transformer terminals or

because of line drop

reduce load. Check connections. Check

conductors for proper size.

Starting load too high

Check load motor is supposes to carry at start.

Broken rotor bars or loose rotor

Look for cracks near the rings. A new rotor may

be required, as repairs are usually temporary.

Open primary circuit

Locate fault with testing device and repair.

Motor takes too long to Excessive load

Reduce load.

accelerate and/or draws Low voltage during start

Check for high resistance. Adequate wire size.

high amp

Defective squirrel cage rotor

Replace with new rotor.

Applied voltage too low

Get power company to increase power tap.

Wrong rotation

Wrong sequence of phases

Reverse connections at motor or at switchboard.

Содержание M2A series

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Страница 7: ...ec dolven bytx odobrennoj modeli Ego tip i razmer dolven sowpadatx s tipom kabelq Stepenx za ity i diametr opredeleny w doku mentacii kabelq Takve klemmnyj itok dolven bytx odobrennogo tipa Neobhodimo...

Страница 8: ...oj s tekstom sbalansirowan bez ponki Balanced without key Specialxnye ukazaniq dlq dwigatelej s priwodom ot preobrazowatelq astoty Dwigateli ABB tipow EEx d EEx de EEx e po zaprosu i Ex nA Ex N ili EE...

Страница 9: ...predelqetsq po urown wlavnosti okruva ego wozduha i mestnym klimati eskim uslo wiqm Interwal mevdu prowerkami ustanawliwaetsq po opytu i on dolven sobl datxsq Smazywanie Tipy pod ipnikow predstawleny...

Страница 10: ...w pri bolx ih skorostqh Smazo nye materialy Dlq smazywaniq sleduet primenqtx tolxko prednazna ennu dlq arikowyh pod ipnikow smazku so sledu imi swojstwami wysokoka estwennu mylxnu smazku na osnowe kom...

Страница 11: ...Adres zawoda izgotowitelq dolven bytx ukazan w dwiga telqh kotorye ime t znak SE i otwe a t priloveni 10 direktiwy 94 9 SE Esli adresa net w zawodskoj birke to on ukazan w kode izdeliq sledu im obrazo...

Страница 12: ...r Prowerxte isprawnostx stervnej rotora i zamyka ihkolec Wozmovnaq peregruzka dwigatelq Umenx ite nagruzku Dwigatelx ostanowilsq Razryw cepi Peregoreli predohraniteli prowerxte rele ot peregruzki stat...

Страница 13: ...pol ponka polnaq ponka Trehfaznyj dwigatelx rabotaet Prowerxte soedineniq wodnofaznomrevime Bolx ojosewojzazor Prowerxtepod ipniki Tru ijsq um Wentilqtor tretsq o kovuh Po inite wentilqtor kovuh Went...

Страница 14: ...some machine types used in special applications or with special design Conformity As well as conforming to the standards relating to mechanical and electrical characteristics motors designed for explo...

Страница 15: ...ar delta starting The terminal box on standard single speed motors normally contains six winding terminals and at least one earth terminal For two speed and special motors the supply connec tion must...

Страница 16: ...t to damage auxiliary equipment and cables attached to the motor Machine weights Total machine weight can vary within the same frame size center height depending on different output mounting arrangeme...

Страница 17: ...condensation to escape of the motor Periodically turn the knurled head of the drain plug in order to prevent jamming This operation must be done when the motor is at standstill The regularity of check...

Страница 18: ...which can be found inside the terminal box The creepage distance and clearance must be conform to EN 50019 The seals of the terminal box must be placed correctly in the slots provided in order to ensu...

Страница 19: ...and connected according to the manual Grounding and cabling of the drive system The shield must be connected to both motor frame and the inverter PE terminal Bearing voltages and currents sparks must...

Страница 20: ...is indicated on the rating plate Motors with permanently greased bearings Motors up to frame size 180 are normally fitted with permanently greased bearings of either 1Z or 2Z types As a guide adequate...

Страница 21: ...tency NLGI grade 2 or 3 temperature range 30 C 140 C continuously Grease with the correct properties is available from all the major lubricant manufacturers The following or similar types of high perf...

Страница 22: ...anufacturer if this does not appear on the rating plate is indicated by the product code stamped on the rating plate as explained below Product code 3 G B A 3 1 2 2 1 0 A D A Pos 1 2 3 4 5 6 7 8 9 10...

Страница 23: ...locate with test lamp Rotor defective Look for broken bars or end rings Motor may be overloaded Reduce load Motor stalls One phase may be open Check lines for open phase Wrong application Change type...

Страница 24: ...ull key Polyphase motor running single Check for open circuit phase Excessive end play Adjust bearing or add shim Scraping noise Fan rubbing air shield Remove interference Fan striking insulation Clea...

Страница 25: ...Figure 1 Connection diagram Kuva 1 Liit nt kaavio Risunok 1 Shemasoedinenij Figure 2 Belt drive Kuva 2 Hihnak ytt Risunok 2 Remennojpriwod...

Страница 26: ...Figure 3 Mounting of half coupling or pulley Kuva 3 Kytkinpuolikkaan ja hihnapy r n asennus Risunok 3 Posadka polumufty i kiwa...

Страница 27: ...nesia P T Abdibangun Buana Jakarta tel 62 0 21 314 9115 Ireland Asea Brown Boveri Ltd Components Division Dublin tel 353 0 1 405 7300 Italy ABB Industria S p a Motors Division Milano tel 39 0 2 262 32...

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