Derating Factors - Siemens SIMOTICS T-1FW6 Configuration Manual

Table 2- 4
Note
The quality of the label can diminish as result of extreme environmental conditions.
Any danger areas encountered during normal operation and when maintaining and servicing
the motor must be identified using clearly visible warning and prohibit signs (pictograms) in
the immediate vicinity of the danger (close to the motor). The associated texts must be
available in the language of the country in which the product is used.
2.4

Derating factors

For installation altitudes more than 2000 m above sea level, reduce the voltage stress of the
motors according to the "Factors to reduce the maximum DC link voltage" table (reciprocal
values from EN 60664-1 Table A. 2).
Table 2- 5
Reducing the DC link voltage reduces the converter output voltage. The operating range in
the M-n diagram is also reduced.
You can find the M-n diagrams in the associated data sheet.
Operation in a vacuum is not permissible due to the low voltage strength and the poor
cooling.
1FW6 Built-in torque motors
Configuration Manual, 07/2017, 6SN1197-0AE00-0BP9
Prohibit signs provided according to BGV A8 and EN ISO 7010 and their significance
Sign
Prohibited to carry/wear
metal parts or watches
Factors to reduce the maximum DC link voltage
Installation altitude above sea level in m up to
2000
3000
4000
5000
6000
7000
8000
Meaning
No access for
persons with
pacemakers
or implanted
defibrillators
(P007)
(P008)
Description of the motor
2.4 Derating factors
Sign Meaning
No access for
persons with
metal implants
(P014)
Factor
1
0.877
0.775
0.656
0.588
0.513
0.444
39