Automation Direct DURApulse GS4 User Manual page 141

P1.27 DC Injection Time During Stopping
Range/Units (Format: 16-bit unsigned)
0�0~60�0 sec
DC injection braking at stop is used to shorten stopping time and also to hold a stopped load in
position, such as a crane or cutting machine.
Due to external force or motor inertia, the motor may continue to rotate after a drive stop
command. The GS4 drive can output DC current to force the motor to stop. When P1.27 is set to
0.0, DC injection braking is not used when stopping.
This parameter determines the duration of the DC injection braking current during stopping.
• The DC Injection function is active when P1�00 (Stop Method) is set to 0 (Ramp to Stop)�
• The DC Injection function is inactive when P1�00 (Stop Method) is set to 1 (Coast to Stop)�
Related parameters: P1.00 Stop Method; P1.28 Start-point for DC Brake; P3.51 Brake Delay Time,
Multi Function Output = #12 or #42.
P1.28 Start-Point for DC Injection During Stopping
Range/Units (Format: 16-bit unsigned)
0�00~600�00 Hz
This parameter determines the frequency when DC injection braking will begin during
deceleration. When this setting is less than Minimum Output Frequency (P2.08 or P2.15), the
start-point for DC injection braking will start from the Minimum Output Frequency.
Run /Stop
DURA
GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
pulse
P2.19
minimum
for DC brake
output
P1.26
frequency
ON
DC Brake Time
Chapter 4: AC Drive Parameters
Type
♦R/W
Default
0
Type
♦R/W
Default
0
P1.28
DC Brake Time
start point
during Stopping
time during
P1.27
stopping
OFF
Hex Addr Dec Addr
011B 40284
Hex Addr Dec Addr
011C 40285
Time
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