Siemens S120 Manual page 176

Power Modules
4.4 Power Modules Chassis
Derating for Chassis Power Modules
For further information, see Section Derating as a function of the ambient temperature, pulse
frequency, and installation altitude (Page 37).
Table 4- 39 Current derating for chassis units as a function of ambient temperature (supply air temperature at the air inlet
of the chassis unit) and installation altitude
Installation altitude
above sea level in m
0 ... 2000
... 2500
... 3000
... 3500
... 4000
... 4500
... 5000
The values apply under the precondition that a cooling air flow though the units as stated in
the technical data is ensured.
Table 4- 40 Derating factor of the output current as a function of the pulse frequency
Order No. 6SL3310-...
1TE32-1AAx
1TE32-6AAx
1TE33-1AAx
1TE33-8AAx
1TE35-0AAx
By multiplying the rated pulse frequency with a multiple integer, the following output
frequencies can be achieved taking into account the derating factors:
Table 4- 41
1)
176
at an ambient temperature (air intake temperature) of
20° C 25° C
100 % 100 %
100 % 100 %
100 % 100 %
100 % 100 %
100 % 100 %
100 % 97,5 %
98,2 %
Power [kW] Output current for a
pulse frequency of 2 kHz
110
132
160
200
250
Maximum output frequencies achieved by increasing the pulse frequency in VECTOR
mode
Pulse frequency [kHz]
2
4
8
The maximum output frequency is limited to 300 Hz due to the closed-loop control (see SINAMICS
S120/S150 List Manual.)
Current derating factor (in % of rated current)
30° C 35° C
100 % 100 %
100 % 100 %
100 % 98,7 %
100 %
96,3 %
Derating factor for a
pulse frequency of 4 kHz
[A]
210
260
310
380
490
40° C 45° C
100 % 93,3 %
96,3 %
Derating factor for a
pulse frequency of 8 kHz
82 %
83 %
88 %
87 %
78 %
Maximum output frequency [Hz]
160
320
1)
640
1)
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
50° C 55° C
86,7 % 80 %
50 %
50 %
50 %
50 %
50 %
AC Drive