Siemens SINAMICS PM240-2 - Page 94

Technical data
7.8 Restrictions for special ambient conditions
Power Module PM240-2
94 Hardware Installation Manual, 01/2017, A5E33294624B AE
Current reduction as a function of the installation altitude and ambient temperature
At installation altitudes above 1000 m and temperatures higher than 40° C (low overload) or
50° C (high overload), the inverter output current is reduced. The following tables contain the
details.
Table 7- 30 Maximum permitted output current for loading according to LO
Installation
altitude [m]
up to
Ambient temperature [°C]
20
25
30
35
40
45
50
55
60
Output current in [%] when loading to LO
1000
100
93
85
76
66
1500
100 95 88 81 72 63
2000
100
97
90
83
77
68
59
2500
100
98
91
85
79
72
64
56
3000
100
98
92
86
80
74
68
60
53
3500
98
92
86
81
75
69
64
57
50
4000
91
86
81
75
70
65
60
53
46
Table 7- 31 Maximum permitted output current when loading according to HO
Installation
altitude [m]
up to
Ambient temperature [°C]
20
25
30
35
40
45
50
55
60
Output current in [%] when loading to HO
1000
100
87
74
1500
100
95
83
70
2000
100
99
95
90
78
67
2500
100
98
94
89
85
74
63
3000
100
96
92
88
84
80
70
59
3500
98
94
90
86
83
79
75
65
56
4000
91
88
84
81
77
74
70
61
52
Also observe the maximum permissible ambient operating temperatures for the Control Unit
and possibly the Operator Panel.