Applying Dc Injection Braking - YASKAWA VS-606V7 Series Instruction Manual

ates because the frequency reference is set lower than the Min. Output
Frequency (n016) when the FWD (REV) RUN command is ON. If the
deceleration time is short or the load inertia is large, an overvoltage
(OV) fault may occur at deceleration. In this case, increase the decelera-
tion time or install an optional Braking Resistor.
Braking torque: Without braking resistor: Approx. 20% of motor
Coast to a Stop
Example when Acceleration/Deceleration Time 1 is selected
FWD (REV)
RUN Command
* Changing the frequency reference while running
Upon termination of the FWD (REV) RUN command, the motor
starts coasting.

Applying DC Injection Braking

DC Injection Braking Current (n089)
Sets the DC injection braking current in units of 1%. (Inverter rated cur-
rent=100%)
DC Injection Braking Time at Stop (n090)
Sets the DC injection braking time at stopping in units of 0.1 s.
When the setting of n090 is 0, DC injection braking is not performed,
but the Inverter output is turned OFF when DC injection braking is
started.
88
rating
With braking resistor: Approx. 150% of motor
rating
Acceleration
Time 1
(n019)
Output
Frequency
Deceleration
Time 1
Coast to a
(n020)
stop
Time