User guide

Xenus XTL User Guide Regen Resistor Sizing and Configuration
Copley Controls Corp. 147
B.1.3: I
2
T Current Limit Algorithm – Application Example
I
2
T Example: Parameters
Operation of the I
2
T current limit algorithm is best understood through an example. For this
example, a motor with the following characteristics is used:
• Peak Current Limit – 12 A
• I
2
T Time Limit – 1 S
• Continuous Current Limit – 6 A
From this information, the I
2
T setpoint is:
I
2
T setpoint = (12 A
2
–6 A
2
) * 1 S = 108 A
2
S
See the example plot diagrams on the next page.