Siemens SIMOTICS S-1FT2 User Manual

Installation altitude above sea
level in m
Air pressure in hPa Reduction factor
4000 606 0.775
5000 533 0.656
6000 469 0.588
Table 3-5 Typical DC link voltage of the SINAMICS converters
Network Infeed DC link voltage inV
230V 1AC unregulated/SLM/BLM 248
240V 3AC unregulated/SLM/BLM 307
400V 3AC unregulated/SLM/BLM 528
480V 3AC unregulated/SLM/BLM 634
400V 3AC ALM 600
480V 3AC ALM 720
In your engineered system, check whether the DC link voltage lies in the permissible range. If it is not,
reduce the DC link voltage; for example, by selecting an uncontrolled infeed or by reducing the line voltage.
Calculation example:
• Given:
– 1F☐2☐☐☐-☐☐F☐☐... motor → maximum permissible DC link voltage at 2000 m above
sea level: 720V (see table "Limit values for permissible DC link voltage...")
– Installation altitude: 3000 m above sea level: → reduction factor of the permissible DC link
voltage: 0.887
– Line voltage 3AC400V, with ALM (controlled infeed) --> DC link voltage 600V
• Calculate the permissible DC link voltage as follows:
– 0.877•720V=631V → 631V is higher than 600V. Reduction is not required.
Note
Observe the speci󹪝cations for the installation altitude of the converter
Observe the speci󹪝cations 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 M-n diagrams are contained in the associated Con󹪝guration Manual.
Description of the motors
3.1Technical characteristics and ambient conditions
SIMOTICS S-1FT2 synchronous motors for SINAMICS S120
34 Operating Instructions, 12/2023, A5E50610821B AF

Siemens SIMOTICS S-1FT2 Specifications

General

Brand	Siemens
Model	SIMOTICS S-1FT2
Category	Engine
Language	English