Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) - Manual (Page 102)

Publication 2364F-5.01– October 2003
9-10 Adjusting Voltage and Current Regulation Parameters
1.
2.
3.
4.
5. During operation, if the heatsink temperature (P87) or transistor-
junction temperature (P86) becomes too high, the “IT” function
will impose a current limit. See P83 for the IT-imposed current
limit.
6. The RGU limits the desired Iq command (P94) using the smallest
positive current limit (P97) and the largest negative current limit
(P98). Refer to P96 for the final voltage loop I
q
command.
If you want the I
q
mode select to be: Then set P90 to:
From the PI regulator (factory default) 0
The sum of the Iq from the PI regulator and an auxiliary Iq 1
An auxiliary Iq 2
Zero 3
If: Then:
You want to use a current
limit that is applied to both
positive and negative
currents (1) Set P35, bit 2 to "1" to enable the auxiliary limit.
(2) Set P88 to the desired limit value between
0 and
150%.
If: Then:
You want to set a positive
current limit Set P91 to the desired positive current limit between 10
and 150%.
If: Then:
You want to set a negative
current limit Set P92 to the desired negative current limit between -150
and -40%.