Danfoss iC7 Series

Table 81: Technical Data (continued)
Technical item or function Technical data
Nominal DC-bus voltage Voltage class 07: 1025 V DC
Voltage class B5: 742 V DC
DC-bus voltage range Voltage class 07: 640–1100 V DC (-0...+0%)
DC/DC: Start-up and short-term operation 350–640 V DC
Voltage class B5: 465–800 V DC (-0...+0%)
GC, DC/DC: Start-up and short-term operation 350–465 V
DC
DC-bus connection
Capacitance AM10L, IM10L, DM10L, AR10L, IR10L, DR10L: 1600 µF
AM12L, IM12L, DM12L, AR12L, IR12L, DR12L: 3200 µF
Source voltage range 3–100% of DC-bus voltage with limited control perfor-
mance
3–97% of DC-bus voltage with full control performance
Maximum short-circuit current from
DC source
Up to 100 kA if the time constant L/R of the fault loop im-
pedance <15 ms.
Valid for recommended fuse selection.
Consult Danfoss for fuse selection if L/R >15 ms.
Source current ripple with DC filter
(+AED1/OF7D1)
DR10L/DC10L: <1% of I
N
RMS typical
DR12L/DC12L: <0.5% of I
N
RMS typical
Default switching frequency 07:
• 570–3600 A: 6 kHz
• 480 A: 7 kHz
• 300–420 A: 8 kHz
B5:
• DM10L/DR10L 300 A, 360 A, 420 A, 480 A: 8 kHz
• DM10L/DR10L 570 A: 6 kHz
• DM12L/DR12L: 6 kHz
DC/DC converter DC-source con-
nection
DC/DC Converter control principles DC-bus voltage reference
Source voltage reference
Source power and current references
Current and voltage limit controllers
Control electronic connection Input voltage U
in
24 V DC (20.4–28.8 V), DVC As, implemented in accor-
dance with IEC/EN 61800-5-1, minimum power 20 W
Ground = negative polarity grounded via the electronics
For details, see 8.1 Modular Control Unit.
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Design Guide | iC7 Series Liquid-cooled System Modules