Rockwell Automation 2094-EN02D-M01-Sx Kinetix 6200 and Kinetix 6500 Modular Multi-axis Servo Drives User Manual - Manual (Page 268)

268 Rockwell Automation Publication 2094-UM002E-EN-P - May 2012
Appendix C DC Common Bus Applications
Calculate Total Bus
Capacitance Total bus capacitance is the sum of all capacitance values for your Bulletin 2094
common-bus modules. Specifically, this includes the capacitance values for each
of these modules:
• Leader IAM (converter and inverter) module
• Each AM and shunt module (if present) on the leader IAM power rail
• Each IPIM module (if present) on the leader IAM power rail
• Each follower IAM (converter and inverter) module
• Each AM module on the follower IAM power rail
• Each IPIM module (if present) on the follower IAM power rail
Refer to Bulletin 2094 Drive Capacitance Values on page 269 for IAM, AM,
IPIM, and shunt module capacitance values.
Table 111 - Maximum IAM Module Bus Capacitance
IMPORTANT If total bus capacitance of your system exceeds the leader IAM power module
pre-charge rating, the IAM module four-character display scrolls a power cycle
user limit condition. If input power is applied, the display scrolls a power cycle
fault limit condition.
To correct this condition, you must replace the leader IAM power module with
a larger module or decrease the total bus capacitance by removing AM power
modules or IPIM modules.
Leader IAM (400V-class) Modules
Bus Capacitance, max
μF
2094-BC01-MP5-M
4585
2094-BC01-M01-M
2094-BC02-M02-M 8955
2094-BC04-M03-M 8955
2094-BC07-M05-M 17,915
IMPORTANT If your total bus capacitance value exceeds the value in the table above, you
must increase the size of the leader IAM module or decrease the total bus
capacitance by removing other modules on the power rail.