Siemens SIMOVERT MASTERDRIVES Betriebsanleitung Seite 266

08.2009
NOTE
Rating plate
Date of manufacture
Siemens AG 6SE7087-6KD50
SIMOVERT MASTERDRIVES
The derating of the permissible rated current for installation altitudes of
over 1000 m and at ambient temperatures below 40 °C is calculated as
follows:
Total derating = Derating
K = K x K
1 2
It must be borne in mind that total derating must not be greater than 1!
Example: Altitude: 3000 m
Ambient temperature: 35 °C
→ Total derating = 0.845 x 1.125 = 0.95
Fig. 11-2 Rating plate
The date of manufacture can be derived as follows:
Character Year of manufacture
U
V
W
X
Table 11-2 Assignment of characters to the month and year of manufacture
Operating Instructions
x Derating
altitude ambient temperature
Character
2006 1 to 9
2007 O
2008 N
2009 D
Technical Data
K = 0.845
1
K = 1.125
2
Unit designation
List of unit options
Year of manufacture
Month of manufacture
Month of manufacture
January to September
October
November
December
11-3