Note: After a stop is initiated, any subsequent run command entered will be ignored until the minimum baseblock time (L2-03) has expired. Do not attempt to start the motor up

again until it has come to a complete stop. To start the motor back up before it has stopped completely, use DC Injection at start. See parameter b2-03 for more information.

2: DC Injection Braking to Stop

When the run command is removed, the drive will baseblock (turn off its output) for the minimum baseblock time (L2-03). Once the minimum baseblock

time has expired, the drive will inject DC current into the motor windings to lock the motor shaft. The stopping time will be reduced as compared to coast

to stop. The level of DC Injection current is set by parameter b2-02 (default = 50%). The time for DC Injection Braking is determined by the value set to

b2-04 and by the output frequency at the time the run command is removed.

Note: This function is not available when using PM Open Loop Vector. DC Injection Brake Time = (b2-04) x 10 x Output Frequency / max frequency (E1-04)

DC Injection

Motor speed

*If an overcurrent (oC) fault occurs during DC Injection Braking to Stop, lengthen the minimum baseblock time (L2-03) until the fault no longer occurs.

3: Coast to Stop with Timer

When the run command is removed, the drive will turn off its output and the motor will coast to stop. If a run command is input before time t (value of

C1-02) expires, the drive will not run and the run command will need to be cycled before operation can occur. The time t (value of C1-02) is determined

by the output frequency when the run command is removed and by the active deceleration time.

114

Run

Command

Output

Frequency

Motor rpm

Run

command

Output

frequency

Braking