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General; Declaration Of Conformity; Validity; Installation - ABB MT serie Installations- Betriebs Und Wartungshandbuch

Low voltage motors
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1. General

NOTE!
These instructions must be followed to ensure safe
and proper installation, operation and maintenance of
the motor. They should be brought to the attention of
anyone who installs, operates or maintains this
equipment. Ignoring the instruction may invalidate
the warranty.

1.1 Declaration of Conformity

Declarations of Conformity with respect to the Low
voltage Directive 73/23/EEC amended by Directive
93/68 EEC are issued separately with individual
machines.
The Declaration of Conformity also satisfi es the
requirements of a Declaration of Incorporation with
respect to the Machinery Directive 98/37/EEC, Art 4.2
Annex II, sub B

1.2 Validity

The instructions are valid for the following ABB
electrical machine types, in both motor and generator
operation.
series MT*, MBT*, MXMA,
series M2A*/M3A*, M2B*/M3B*, M2C*/M3C*,
M2F*/M3F*, M2L*/M3L*, M2M*/M3M*, M2Q*,
M2R*/M3R*, M2V*/M3V*
in frame sizes 56 - 450.
There is a separate manual for e.g. Ex motors 'Low
voltage motors for hazardous areas: Installation,
operation and maintenance Manual' (Low Voltage
Motors/Manual for Ex-motors).
Additional information is required for some machine
types due to special application and/or design
considerations. Additional information is available for
the following motors:
– roller table motors
– water-cooled motors
– open drip proof motors
– smoke venting motors
– brake motors
– permanent magnet motors
GB –
4

2. Installation

2.1 Putting into service (starting)

2.1.1 Reception check

Immediately upon receipt check the machine for external
damage and if found, inform the forwarding agent
without delay.
Check all rating plate data, especially voltage and
winding connection (star or delta). The type of bearing is
specifi ed on the rating plate of all motors except the
smallest frame sizes.
Remove transport locking if employed.Turn shaft by
hand to check free rotation.
Do not exceed permissible loading values of bearings
stated in the product catalogue.
Motors equipped with roller bearings: Running the
motor with no radial force applied to the shaft may
damage the roller bearing.
Motors equipped with angular contact bearing:
Running the motor with no axial force applied in the right
direction to the shaft may damage the angular contact
bearing.
Motors equipped with regreasing nipples:
When starting the motor for the fi rst time, or after long
storage of the motor, apply the specifi ed quantity of
grease until grease is forced out of the grease outlet.
For details see section "Manual lubrication" on page 9.

2.1.2 Insulation resistance check

Measure insulation resistance before commissioning
and when winding dampness is suspected.
Resistance, measured at 25°C, shall exceed the
reference value, i.e. 10 M ohm (measured with 500 V dc
Megger)
WARNING
Windings should be discharged immediately after
measurement to avoid risk of electric shock.
Insulation resistance reference value is halved for each
20°C rise in ambient temperature.
If the reference resistance value is not attained, the
winding is too damp and must be oven dried.
Oven temperature should be 90°C for 12-16 hours
followed by 105°C for 6-8 hours.
ABB / Low Voltage Motors / Manual 12-2004

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