Assembly And Dismantling; Maintenance And Lubrication; General Inspection - ITT MP Série Instructions De Montage, De Service Et De Maintenance

Installation, Operating and Maintenance Instruction
All unused openings of the terminal box must get
closed.
Connection diagrams for auxiliary elements are found
inside the terminal box cover.
In frequency converter applications motor frame
external grounding must be used for equalizing the
potential between the motor frame and the driven
machine, if the two machines are not mounted on the
same metallic base. Use a flat conductor rather than
round wire.
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.
Grounding shall be carried out according to local
regulations before the machine is connected to the
electric power supply.
The voltage and connection are stamped on the rating
plate.
Direct-on-line starting (DOL)
Y or ∆ winding connections may be used.
e.g. 690 VY, 400 V ∆ indicates Y-connection for 690 V
and ∆ -connection for 400V.
Star/Delta starting (Y/ ∆ ∆ ∆ ∆ )
The supply voltage must be equal to the rated voltage
of the machine in ∆ -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 terminal box.
Terminals and direction of rotation
Direction of rotation is counter-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 on the connection diagram in the
terminal box.
To alter the direction of rotation, interchange the
connection of any two line cables.
The terminal box is located on top for the DPIG
motors of the frame sizes 56-180 and the SEE motors
of the frame size 315 and 355, while the terminal box
location is on the right side looking to the shaft end for
the DPIG motors of the frame sizes 200-355 creating
easy cable entry possibilities.
MP 100-english
Article No 771074011
Unused cable entries openings must be closed.
Besides the main winding and earthing terminals the
terminal box can also contain connections for
thermistors, standstill heating elements or bimetallic
switches.

12.5 Assembly and dismantling

12.5.1 General
Dismantling and assembly of machines must be
carried out by qualified persons using only suitable
tools and working methods.
12.5.2 Bearings
Special care shall be taken with the bearings. Bearing
shall be removed using pullers and fitted by heating or
the use of specialized tools for the purpose.

12.6 Maintenance and lubrication

12.6.1 General inspection

Inspect the machine at regular intervals.
Keep the machine clean and ensure free
ventilation air flow.
Check the condition of shaft seals (e.g. V-ring)
and replace if necessary.
Check the condition of connections and mounting
and assembly bolts.
Check the bearing condition by listening for
unusual noise, vibration measurement, bearing
temperature, inspection of spent grease.
12.6.2 Lubrication
Machines with permanently greased bearings
Machines up to frame size 280 are normally fitted with
permanently greased bearings of either 2Z or 2RS
types.
Machines fitted with grease nipples for frame
sizes 315 and above
Lubricate the machine while running.
If a grease outlet plug is fitted, remove temporarily
when lubricating, or permanently with automatic
lubrication.
If the machine is fitted with a lubrication information
plate, follow the values given, otherwise use values as
follows.
Speed
[rpm]
max. 1800
above 1800
Speed
[rpm]
max. 1800
above 1800
The maintenance intervals are based on standard
ambient conditions.
Life time of roller bearings:
approx. 20.000 hours for the frame size 56-180.
page 105
Model MP, MPA, MPAI
lubrication time
interval [h] [months]
1500
750
lubrication time
interval [h] [months]
10000
5000
Issue 01/2007
6
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Revision 02