Fläkt Woods
8265 GB 2011.10
1
Specifications are subject to alteration without notice
Installation and maintenance instruction
Fläkt Woods three phase asyncronous motor
Manufacturer: ABB
Machine Instructions
NOTE!
These instructions must be followed to ensure
safe and proper installation, operation and main-
tenance of the motor. They should be brought to
the attention of anyone who installs, operates or
maintains this equipment. Ignoring the instruc-
tion may invalidate the warranty.
Declaration of Conformity
Declarations of Conformity with respect to the Low vol-
tage Directive 73/23/EEC amended by Directive 93/68
EEC are issued separately with individual machines.
The Declaration of Conformity also satisfies the require-
ments of a Declaration of Incorporation with respect
to the Machinery Directive 89/392/EEC, amended by
91/368/EEC, 93/44/EEC and 93/68/EEC.
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*, M2R*/M3R*,
in frame sizes 63 - 400.
(Additional information may be required for some
machine types due to special application and/or design
considerations.)
Putting into service (starting)
Reception check
Immediately upon receipt check the machine for external
damage and if found, inform the forwarding agent with-
out delay.
Check all rating plate data, especially voltage and winding
connection (star or delta). The type of bearing is specified
on the rating plate from size 112 and larger.
Turn shaft by hand to check free rotation, remove trans-
port locking if employed.
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 devices:
When starting the motor for the first time, apply at least
the specified quantity of grease until new grease forced
out of the grease outlet. For details see section “Machines
with relubrication system” on page 6.
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)
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.
Drain hole plugs, if fitted, must be removed during heating.
Windings drenched in seawater normally need to be
rewound.
Direct-on-line or star/delta starting
The terminal box on standard single speed machines
normally contains 6 winding terminals and at least one
earth terminal.
Earthing must be carried out according to local regulations
before the machine is connected to the supply voltage.
The voltage and connection are stamped on the rating plate.
Direct-on-line starting (DOL):
Y or Δ winding connections may be used. eg 660 VY, 380 VΔ
indicates Y-connection for 660 V and Δ-connection for 380 V.
Star/Delta starting (Y/Δ) :
The supply voltage must be equal to the rated voltage of
the machine in Δ-connection.
Remove all connection links from the terminal block.
For two-speed, single phase and special machines, supply
connection must follow the instructions inside the termi-
nal box.
Terminals and direction of rotation
Direction of rotation is clockwise when viewing the shaft
face at the machine drive end, when the line phase sequence
L1, L2, L3 is connected to the terminals as shown in the
figure 1.
To alter the direction of rotation, interchange the connec-
tion of any two line cables.
If the machine has a uni-directional fan, ensure that the
direction of rotation is according to the arrow marked on
the machine.
WARNING!
Windings should be discharged imme-
diately after measurement to avoid risk
of electric shock.
