Special Requirements - Siemens SINAMICS S 1PH7 Configuration Manual

Mechanical properties of the motors
3.7 Balancing process
Table 3- 16 Requirements placed on the balancing process as a function of the motor balancing type
Balancing equipment/
Process step
Auxiliary shaft to balance
the mounted component
Attaching the mounted
component
to the auxiliary shaft for
balancing
Position the mounted
component on the auxiliary
shaft
Balance the mounted
component

Special requirements

If special requirements are placed on the smooth running operation of the machine, we
recommend that the motor together with the output components is completely balanced.
In this case, balancing should be carried-out in two planes of the output component.
82
Motor
Half key balanced
Auxiliary shaft with
•
keyway
Keyway with the same
•
dimensions as in the
motor shaft end
Auxiliary shaft half key
•
balanced
Balance quality of the auxiliary shaft ≤ 10 % of the required balance quality of the
•
component to be mounted to the motor
Attached using a key
•
Key design, dimensions
•
and materials the same
as at the motor shaft end
Select a position between
•
the mounted component
and the key of the
auxiliary shaft so that it is
the same when mounted
on the actual motor
Two-plane balancing is recommended - i.e. balancing in two planes at both sides of the
•
mounted components at right angles to the axis of rotation
Motor balanced with full key
Auxiliary shaft with
•
keyway
Slot design with the
•
exception of the slot
width (as the motor) can
be freely selected
Auxiliary shaft full key
•
balanced
Attached using a key
•
Key design, dimensions
•
and material the same as
used for the full key
balancing of the auxiliary
shaft
No special requirements
•
Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0
Motor with plain
shaft end
Auxiliary shaft without
•
keyway
If required, use a tapered
•
auxiliary shaft
Attach the component as
•
far as possible without
any play,
e.g. using a light press fit
on the tapered shaft
1PH7 induction motors (Machine tools)