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Change To The S1 Characteristic When A Gearbox Is Mounted; Startup Procedure; Motors With Mounted Gearbox - Siemens SINAMICS S120 Configuration Manual

Synchronous motors.
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9.1.4

Change to the S1 characteristic when a gearbox is mounted

Figure 9-2
Information for additional characteristics: S1
9.1.5

Startup procedure

During commissioning, it should be assumed that an increased current will be drawn due to
the lubrication characteristics (inadequate distribution of grease and oil) and the fact that the
shaft sealing ring is being run-in.
9.1.6

Motors with mounted gearbox

The gearboxes assigned to the individual motors as well as the gearbox ratios, available
for these motor-gearbox combinations are listed in the selection tables of the motor-specific
Sections. When making a selection, the maximum permissible input speed of the gearbox
must be observed (this is the same as the maximum motor speed).
The motor-gearbox combinations, listed in the selection tables, are mainly intended for
positioning duty (S3). The manufacturer must be contacted if the motors are to be used in
continuous duty at high speeds.
1FK7 synchronous motors can be supplied ex works (Siemens) complete with
a flangemounted planetary gearbox.
Synchronous Motors 1FK7
Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
Example: 1FK7083 with angled gearbox (characteristic)
9.1 Dimensioning the gearbox
= S1
- (S1
gearbox
100K
100K
Gearbox
- S1
) / 2
60K
193

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