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Siemens SIMODRIVE 6SN11 Series Planning Manual page 333

Ac motors for feed and main spindle drives

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09.00
1.4.2
Stator
Design
The stator of built–in motors consists of a wound stator core, which is pressed
into a cooling (jacket). An open spiral–shaped cooling duct is machined into the
outer surface of the cooling jacket. The spindle manufacturer must insert the
stator into the spindle housing.
Dimensions
The dimensions can be taken from the dimension drawings in Chapter 4.
Spindle housing
The spindle housing seals–off the open stator cooling duct to the outside. The
inner contour of the spindle housing in the stator area must fit the external con-
tour of the cooling jacket.
The spindle housing must fulfill the following functions:
S
S
S
S
S
S
S
S
S
Table 1-10
Supply voltage in [V]
Min. air clearance in [mm]
 Siemens AG 2000 All rights reserved
SIMODRIVE Planning Guide Motors (PJM) – 11.00 Edition
Seal the open cooling duct to the outside.
Center the stator to the spindle.
Accept the spindle with bearings.
Cooling medium inlet and outlet.
Accept the stator torque
Retain the spindle in the machine tool.
Degree of protection of the motor spindle acc. to IEC 34, Part 5/VDE 0530,
Part 5.
Drilling at the lowest point on the drive end and non–drive end to allow con-
densation water to drain (acc. to DIN IEC 34, S10; code 5b).
The following minimum insulating clearances must be observed (minimum
air clearances):
Minimun insulating clearances
v500
6SN1197–0AA20
1PH2 AC Built–in Motors
u500 to 660
4.5
6
1.4 Assembly
1PH2
1PH2/1-19

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