Generating a voltage loop iq command, Generating a voltage loop iq command -9, Symbol key – Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) User Manual
Page 101: Generating a voltage loop i, Command the voltage loop i

Publication 2364F-5.01– October 2003
Adjusting Voltage and Current Regulation Parameters
9-9
Generating a Voltage Loop I
q
Command
The voltage loop I
q
command can originate in one of four ways as
determined by user-configurable P90. That resulting I
q
command is
then processed through the current limiter to arrive at a voltage loop
I
q
command. The current limiter makes adjustments to maintain
minimum and maximum I
q
values and acceptable wire temperatures.
Refer to Figure 9.7 for a firmware diagram.
Figure 9.7
Firmware Diagram for Generating a Voltage Loop I
q
Command
0
100 ms
LPF
100% = Rated AC Current = 5120
"IT"
89
84
90
94
Current Limit
3
34
4
34
200
95
96
98
97
91
92
MAX
MIN
-1 -1
0
35
2
35
88
10%
Max Positive
Max Positive
83
86
87
2
183
10
174
5
174
0
1
2
3
0
1
0
1
+
+
I
q
Necessary for
Error Correction
X
X
Y
X
X
X
*
Indirect, parameter X
Source; parameter X
Sink; parameter X
Parameter X, bit Y
Battery-backed, parameter X
SYMBOL KEY
Parameter Number
Parameter Name
34 bit 3
Host Status Word 2 - I
q Positive Limit
34 bit 4
Host Status Word 2 - Iq Negative Limit
35 bit 0
Host Mode - Regeneration Only
35 bit 2
Host Mode - Auxiliary Limit
83
It Foldback Current Limit
84
Voltage Regulator Output
86
Transistor Junction Temperature
87
Heatsink Temperature
88
Auxiliary Iq Current Limit
89
Auxiliary Iq Current Command
90
Iq Mode Select
91
Iq Positive Current Limit
92
I
q Negative Current Limit
94
Iq Current Command
95
Filtered Iq Current Reference
96
Iq Current Reference
97
Net Positive Current Limit
98
Net Negative Current Limit
174 bit 5
Host Fault Status Word 1 - Iq Foldback
174 bit 10
Host Fault Status Word 1 - Heatsink
Overtemperature
183 bit 2
Host Fault Status Word 4 - I
2t Overload
200
Iq Reference Rate Limit
Parameter Number
Parameter Name