Rockwell Automation 2093-xxxx Kinetix 2000 Multi-axis Servo Drive User Manual - Manual (Page 210)

Publication 2093-UM001A-EN-P — March 2007
210 DC Common Bus Applications
Calculating Total Bus
Capacitance Total bus capacitance is the sum of all capacitance values for your Kinetix 2000
common bus modules. Specifically, this includes the capacitance values for
each of these modules.
• Leader IAM (converter and inverter)
• Each AM and SM (if present) on the leader IAM power rail
• Each follower IAM (converter and inverter)
• Each AM on the follower IAM power rails
Refer to Kinetix 2000 Capacitance Values on page 211 for IAM/AM/SM
capacitance values.
Calculating Additional Bus
Capacitance Additional bus capacitance is the sum of all follower IAM and AM capacitance
values for your Kinetix 2000 common bus modules. Specifically, this includes
the capacitance values for each of these modules:
• Each follower IAM (converter and inverter)
• Each AM on the follower IAM power rails
Enter the additional bus capacitance values in step 6 of Setting the Additional
Bus Capacitance Parameter.
IMPORTANT
If total bus capacitance exceeds the leader IAM maximum value, a
pre-charge time-out fault is triggered, and error code E90 is displayed.
This fault disables the drive.
If the Leader IAM (230V) is the Total Bus Capacitance must not exceed
2093-AC05-MP1
3420 µF 2093-AC05-MP2
2093-AC05-MP5
IMPORTANT
If your total bus capacitance value exceeds the value in the table
above, you must decrease the total bus capacitance by removing axis
modules.