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3GZF500725-144 EN 03-2023 | ABB IEC LV MOTORS

The detector is connected in the lowest part of the motor and vertically installed accord- ing 
to the mounting arrangement of the motor. The maximum deviation from the vertical axis 
line is ±30°.

Electrical connection of float switch

12.

Figures

Figure 1. Condensation drain hole locations. Open and 

close position of plugs.

max. voltage  max. current 1 A

switch capacity 

230 V DC/AC

100 VA

Drain hole plugs (condensation)

Summary of Contents for M3LK 250

Page 1: ... ADDITIONAL MOTOR MANUAL Low voltage Water cooled motors motor type M3LK 250 ...

Page 2: ...2 3GZF500725 144 EN 03 2023 ABB IEC LV MOTORS ...

Page 3: ...Transport storage 4 2 4 Installation 5 3 Electrical connection 5 4 Operation 6 5 Maintenance and servicing 7 6 Handling 7 7 Lifting 8 8 Water cooling 9 9 Connection 9 9 1 Requirements for cooling water 9 9 2 Filling or draining cooling water 10 10 Consendation drain holes 10 11 Water leakage detector 10 12 Figures 11 Contactus 13 ...

Page 4: ...g is prohibited until conformity of the end product with this directive has been established follow particular local safety and installation rules e g EN 60204 These machines comply with the harmonized series of standards EN 60034 DIN VDE 0530 Their use in hazardous areas is prohibited unless they are expressly designed for such use Air cooled models are typically designed for ambient temperatures...

Page 5: ...of the shaft end key establish mechanical bal ance Make the necessary ventilation and cooling system connections making sure that the ventila tion does not get obstructed and that exhaust air either from the current machine or other machines is not drawn into the ventilation intake The terminals of a machine with frequency converter supply may be energized even when the machine is at a standstill ...

Page 6: ...s and the box itself in a dust and watertight manner Lock the key when the ma chine is run without coupling For machines with accessories check that they function before commissioning The proper installation e g segregation of signal and power lines screened cables etc lies within the installer s responsibility 4 Operation Do not exceed the maximum allowed speed of the machine See product specific...

Page 7: ...us machines must only be serviced by repair shops qualified and authorized by ABB For more information concerning service of permanent magnet syn chronous machines please contact ABB Follow manufacturer s operating instructions For further details see product specific manu als or contact ABB Motor has special encoder and bearings system which requires a special care during a maintenance Separate s...

Page 8: ...ebolts provided with the motor must be used for lifting the motor They must not be used to lift the motor when it is attached to other equipment Lifting lugs for auxiliaries e g brakes or terminal boxes must not be used for lifting the mo tor Because of different output mounting arrangements and auxiliary equipment motors with the same frame may have a different center of gravity Damaged lifting l...

Page 9: ...cording to the standard EN 10025 S235_ or S355 This material is prone to corrosion in saline and foul water The corrosion products and fouling deposits might block the water flow in the ducts That s why it is important to use pure water in the cooling system Standard values for the cooling water to be used in the cooling system pH 6 5 9 5 Alkalinity CaCO3 1 mmol l Chloride Cl 120 mg l Conductivity...

Page 10: ...low into the motor until it comes out of the air gap Close the air gap with a plug and seal the joint with sealing tape or strip Filling must be done carefully so that no air is left in the motor s cooling channels Check for possible leaks after the piping and joints have been con nected Emptying can be done with pressurized air After emptying the plugs must be re fitted and the seals of the joint...

Page 11: ...ed accord ing to the mounting arrangement of the motor The maximum deviation from the vertical axis line is 30 Electrical connection of float switch 12 Figures Figure 1 Condensation drain hole locations Open and close position of plugs max voltage max current 1 A switch capacity 230 V DC AC 100 VA Drain hole plugs condensation ...

Page 12: ...GN1 SVK27A _NO closed contact at alarm Figure 3 Sectional view of water leakage detector and typical connection diagram of float switch Bleeding plug water cooling system Water leakage detector water cooling system Water outlet EN10556 Rp 1 water cooling system Water inlet EN10556 Rp 1 water cooling system ...

Page 13: ... Contact us abb com motors generators Copyright 2023 ABB All rights reserved Specifications subject to change without notice 3GZF500725 144 EN 03 2023 ...

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