Page 4–154
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 4: AC Drive Parameters
Condition 3: Using OPhL DC Current Injection Braking and Standard DC Current Injection Braking;
Drive is stopped; P6.48≠0 ; P1.26≠0 (DCI Time during Start-up)
When the drive starts, it will apply DCI injection for time period P6.48 and then P1.26. DC brake
current level in this condition includes two parts, one is 20 times the P6.47 setting for the duration
of the P6.48 setting time, and the P1.25 setting value for the P1.26 time. Total DC brake time is
T=P6.48+P1.26.
In this period, if an OPhL happens, the drive starts to count until P6.48/2 elapses, the drive then
performs the actions set in P6.45.
Condition 3-1: P6.48≠0, P1.26≠0 (No OPhL detected before operation)
Run Command
OPhL Action (P6.45)
20x[P6.47]
P1.25
P6.48 P1.26
P6.47
Output Current
Start to Operate
Time
No OPhL detected
Condition 3-2: P6.48≠0, P1.26 ≠ 0 (OPhL detected before operation)
Run Command
OPhL Action (P6.45)
20x[P6.47]
P1.25
P6.48
P6.48
2
P1.26
P6.47
Output Current
Start to Operate
Time
OPhL detected
DC brake command
Actual output
current
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