Rockwell Automation Publication MOTION-AT007A-EN-P - May 2020 9
DC-bus Wiring Guidelines Chapter 1
Figure 2 - DC-bus Cable Length per Cluster
Low-inductance DC cable routing can be achieved by means of positive and negative cables routed in parallel and as close to one another as
possible, less than 0.3 m (1.0 ft). Low-inductance DC-bus connection, a feature of the Kinetix 5700 drive system, is also achieved by using
2198-BARCON-xxxx200 DC-bus link connector kits that are included in each Kinetix 5700 inverter.
Size the DC cable in accordance with UL or applicable agency guidelines. Because voltage drop is directly proportional to cable resistance,
you can further reduce the voltage drop across the DC cable by using a larger AWG cable size.
IMPORTANT Use low-inductance DC cable routing to help reduce the risk of voltage oscillations between clusters.
Table 1 - Recommended DC-bus Cable Gauge
Regenerative Bus Supply
Cat. No.
Recommended DC-bus Cable Gauge
mm
2
(AWG/MCM)
2198-RP088
53.5 (1/0)
2198-RP200
2198-RP263
152 (300 MCM)
2198-RP312
DC-bus Power Supply
Cat. No.
Recommended DC-bus Cable Gauge
mm
2
(AWG/MCM)
2198-P031
53.5 (1/0)
2198-P070
2198-P141
2198-P208
2198-P208 x 2
152 (300 MCM)
2198-P208 x 3
750
745
740
735
730
725
720
715
0
20
40
3010
60
50
70
0
65.6
131
98.432.8
197
164
230
Maximum Bus Voltage Set Point
(Volts DC)
DC-bus Cable Length per Cluster (ft)
DC-bus Cable Length per Cluster (m)
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