Siemens SIMOTICS S-1FK2 Configuration Manual page 32

Description of the motors
2.4 Derating factors
Installation altitude above sea
level in m
Table 2-4
Calculation example:
• given:
– Motor 1F☐2☐☐-☐☐F☐☐...
– Installation altitude: 3000 m above sea level: 0.877
– Max. permissible DC link voltage according to the table "Limit values for DC link
• Calculate the permissible DC link voltage as follows: 0.877 • 720 V = 631 V
• Determine the intended line voltage + converter for 400 V 3 AC with non-stabilized infeed or
SLM according to the table "Typical DC link voltages...": DC link voltage 528 V
Note
Observe the specifications for the installation altitude of the converter
Observe the specifications for the installation altitude of the converter used. The information
can be found in the manuals of the respective product.
As the DC link voltage is reduced, the converter output voltage also decreases. This reduces the
operating range in the M-n diagram.
The torque-speed diagrams are provided in Chapter "Data sheets and characteristics (Page 95)".
30
4000
5000
6000
Typical DC link voltage of the SINAMICS converters
Network
230 V 1 AC
240 V 3 AC
400 V 3 AC
480 V 3 AC
400 V 3 AC
480 V 3 AC
voltages...": 720 V
Air pressure in hPa
606
533
469
Infeed
unregulated/SLM/BLM
unregulated/SLM/BLM
unregulated/SLM/BLM
unregulated/SLM/BLM
ALM
ALM
Configuration Manual, 02/2022, A5E46927724B AD
Reduction factor
0.775
0.656
0.588
DC link voltage in V
248
307
528
634
600
720
1FK2 Synchronous Motors for SINAMICS S120