Automation Direct DURApulse GS4 - Page 183

Chapter 4: AC Drive Parameters
Page 4–89
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Type Hex Addr Dec Addr
P3.51 Brake Delay Time
R/W 0333 40820
Range/Units (Format: 16-bit unsigned) Default
0�000~65�000 sec
0
When P3.51 is used with MFO selection #42, see the MFO definition #42 (P3.17) for more details.
When P3.51 is used with MFO selection #12 AND the GS4 drive runs after P3.51 delay time, the
corresponding Multi-Function Output terminal (12: brake release function) will be ON when used
with DC Injection Braking (P1.25, P1.26, P1.27).
Timing chart for parameter P3.51 used with DC Injection (DCI) braking:
If Brake Delay Time is longer than DCI Start Time, the Brake output will energize at the
Start of the Accel ramp (total delay time is never more than DCI Start Time).
If Brake Delay Time is longer than DCI Stop Time, the brake output will energize at the
end of DCI Stop Time (the total delay time is never more than DCI Stop Time).
RUN STOP
A
B=A
Multi-function Output
(mechanical brake release)
DOx=Selection 12
Output Frequency
'&,%UDNH
P1.26
DCI brake
time during
start-up
Mechanical Brake
P3.51 brake delay time
bounce time of mechanical brake
RUN/STOP
braked
release
Frequency Command
braked
'&,EUDNH
Time
P1.27
DCI brake
time during
stopping
Timing chart for parameter P3.51 used without DC Injection (DCI) braking (P1.25 > 0):
(P3.51 is not used if DC Injection braking is turned off.)
STOP
A
B=A
zero
speed
zero
speed
Time
brake
brake
release
RUN
Multi-function Output
(mechanical brake release)
DOx=Selection 12
Output Frequency
Mechanical Brake
RUN/STOP
Frequency Command
P1.26 P1.27
Related parameters: P3.52, P3.53. (Parameters related to P3.51)