SIEMENS
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Siemens D 35 · 2017
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Characteristic curves
(continued)
4
SINAMICS G120P built-in and wall-mounted units
PM240P-2 Power Modules, 11 kW to 132 kW
PM240P-2 Power Modules
Current/power derating as a function of the line voltage
PM240P-2 Power Modules supply a constant power in the line
voltage range 380 V to 480 V 3 AC. The constant power results
in current derating as a function of the line voltage.
PM240P-2 Power Modules supply a constant output current in
the line voltage range 500 V to 690 V 3 AC. Output power derat-
ing takes place as a function of the line voltage.
Overload capability
The Power Modules are equipped with an overload reserve e.g.
to handle breakaway torques. If larger surge loads occur, this
must be taken into account in the configuration. For drives with
overload requirements, the appropriate base-load current must,
therefore, be used as a basis for the required load.
The units can operate in two different duty cycles in the permis-
sible continuous operating range. Depending on how the system
is dimensioned, the relevant base-load current is effective as a
rated quantity.
The criterion for overload is that the inverter is operated with its
base-load current before and after the overload occurs on the
basis of a duty cycle duration of 300 s.
The base-load current
I
L
for low overload is the basis for a duty
cycle of 135 % for 3 s plus 110 % for 57 s.
The base-load current I
H
for a high overload is based on a duty
cycle of 150 % for 60 s.
Overload capability, low overload
Overload capability, high overload
Line voltage in V
Output current
Output power
Voltage range
Rated operating point
Power/current
G_D011_EN_00505
V
540
500
460
420
480
380
340
120
%
100
80
83
95
60
40
20
Output current
Output power
Voltage range
Rated operating point
Power/current
G_D011_EN_00506
V
Line voltage in V
Operating point 575 V
%
60
80
100
40
72
20
120
450
550
600
650
700
750
500
110 % overload for 60 s
135 % overload for 3 s
Base-load current
t
s
G_D011_EN_00509
L
%
300
240
180
120
0
100
110
135
60
150 % overload for 60 s
Base-load current
H
t
s
G_D011_EN_00404
I
%
I
300
240
180
120
0
100
150
60
© Siemens AG 2017