Chapter 6 - Parameter Description [FUN]
6-13
FUN-24: DC Injection Braking Delay Time
FUN-25: DC Injection Braking Frequency
FUN-26: DC Injection Braking Time
FUN-27: DC Injection Braking Value
DC Injection Braking Operation
DC injection braking may be used to stop the motor
more quickly than stopping by deceleration. This
function is activated by selecting DC-brake in FUN-23.
The drive will decelerate to the frequency set in FUN-
25. Upon reaching that frequency, the drive will wait
the amount of time set in FUN-24. After waiting the
amount of time in FUN-24, the drive will output the
amount of voltage in FUN-27 for the amount of time in
FUN-26.
FUN-24 [DC Injection Braking Delay Time] is the
amount of time the drive waits before outputting
voltage after the drive has gone below the frequency in
FUN-25.
FUN-25 [DC Injection Braking Frequency] is the
frequency at which the drive will start to output DC
voltage during deceleration.
FUN-26 [DC Injection Braking Time] is the time that
the DC current is applied to the motor.
FUN-27 [DC Injection Braking Value] is the DC
current applied to the motor and is based on DRV-05,
Rated Current of Motor.
Caution: Do not set the value of FUN-27 too high as
it may cause the motor to overheat or the drive to
overload trip.
Note: Do not set FUN-25 [DC Braking Frequency]
too high. Otherwise excessive drive tripping may
occur.
FUN-28: Safety Stop
This function allows the drive to stop by decelerating
the load upon loss of line power or a brownout
condition. It can be very important to control the
decelerating motor when power is lost depending on
the application (for example to prevent check valve
slamming in a pump system). The drive will use the
regenerative energy from the motor and load to keep
itself powered as it decelerates the motor under full
FUN
►
DcBr freq
25 5.00 Hz
Factory Default: 5.00 Hz
FUN
►
DcBr time
26 1.0 sec
Factory Default: 1.0 sec
FUN
►
DCBr dly tim
24 0.10 sec
Factory Default: 0.10 sec
FUN
►
DcBr value
27 50 %
Factory Default: 50 %
FUN
► Safety Stop
28 No
Factory Default: No
Output Frequency
Time
FX-CM
ON
Output Voltage
Time
Time
Stop Command
[DCB
Freq]
[DCB
Value]
t1 t2
t1: FUN-24
t2: FUN-26
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