Rockwell Automation Publication DRIVES-AT005D-EN-P - May 2022 101
Appendix B Power Component Accessories
PowerFlex 755TM Control Pod Rule
Every PowerFlex 755TM common bus inverter in the common bus system needs one control pod. This can be achieved by combinations of C11 -
single pod (with control bay) and or C12 - dual pod (with control bay) control options.
DC Bus Conditioners
The DC bus conditioner is used to reduce voltage stress levels on components such as optos, circuit boards, and magnetics. A reduced voltage level
increases the reliability of components.
Bus conditioner modules are used with frame 8…15 PowerFlex 755TM regenerative bus supplies, PowerFlex 755TL/TR drives, and PowerFlex 755TM
non-regenerative supplies, single density (1X), and dual density (2X) modules. Frame 6…7 PowerFlex 755TM regenerative bus supplies and frame
5…7 PowerFlex 755TL/TR AC drives have built-in bus conditioner circuits.
Bus conditioner modules are factory installed and available as options (-P50 and -P51). You should only specify the -P50 or -P51 optional factory
installed bus conditioner if your power system isn’t solid grounded.
Item Description
1Control pod
2 DC precharge module (optional)
3 Motor side inverter
4Control bay (optional)
5Power bay
4 5
400
(15.7)
300
(11.8)
1
3
2
400
(15.7)
300
(11.8)
400
(15.7)
1
1
4
3
55
2
3
2
C11 Single Pod (With Control Bay) C12 Dual Pod (With Control Bay)
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