102 Rockwell Automation Publication DRIVES-AT005D-EN-P - May 2022
Appendix B Power Component Accessories
The marine bus conditioner option (-P51) is typically used for ungrounded shipboard applications. For frames 5…7, the 'DR' discharge jumper should
be removed for marine applications.
Each bus conditioner has a fuse indicator and heatsink thermal switch. The contacts are tied in and monitored by the bus supply controller. The DC
bus conditioner is factory installed at the top of the power bay behind the DC bus bars.
DC bus conditioner modules are only used with PowerFlex 755TM bus supplies and PowerFlex 755TL/TR AC drives and aren’t installed within
PowerFlex 755TM common bus inverters. The correct number of bus conditioners are installed in the product at our factory.
DC bus conditioners are available for 400 / 480 / 600 / 690V AC source voltages, with 14.1 μF capacitance, rated 100 W.
The DC bus conditioner units are 210 x 156 x 89 mm (8.3 x 6.1 x 3.5 in.) and weigh 2.29 kg (5.05 lb).
Contact technical support for the following replacements:
• Frames 8…15 and 1X…2X, -P50 bus conditioner module: 20-750-MDCBUS-COND
• Frames 8…15 and 1X…2X, -P51 bus conditioner module (low-leakage current to ground and marine discharge circuit): 20-750-MDCBUS1-
COND
• Frame 7 built-in bus conditioner: 20-750-MDCBUS-COND-F7M
• Frame 7 built-in marine discharge board: 20-750-MDSCD-DB
For more information about DC bus conditioner modules and the quantity that is used for each type of PowerFlex 755TM bus supply and -P50 or -
P51 option selection, see the PowerFlex 755TM IP00 Open Type Kits installation instructions, publication 750-IN101.
Kinetix 5700 Servo Drives
The Kinetix 5700 is a common-bus servo drive system. Inverters are connected in drive clusters and have a DC bus link that connects all modules
in the drive cluster. For each drive cluster supplied by a regenerative common bus supply, there must be a capacitor module, a DC bus conditioner
module, and the DC+ and DC-inputs must be fused.
To connect a Kinetix 5700 servo drive cluster to a regenerative bus supply, a capacitor module and bus conditioner are required.
• Add the 2198-CAPMOD-2240 Ser. B capacitor module to the right of the bus conditioner module.
• Add the 2198-DCBUSCOND-RP312 bus conditioner module to the left of the capacitor module.
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