Parameter Details
12
12.2 b: APPLICATION
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 519
Enter the Stop command or turn OFF the Run command and turn OFF drive output and coast the motor to stop.
Load conditions will have an effect on the deceleration rate as the motor coasts to stop (for example, mechanical
loss and inertia).
Figure 12.6 Coast to Stop
Note:
The drive ignores the Run command for the time set in L2-03 [Min Baseblck Time] when the Stop command is entered or when the Run
command is switched OFF. Do not enter the Run command until the motor comes to a complete stop. Use DC Injection or Speed Search
to restart the motor before it stops.
2 : DC Inj->Stop
Enter the Stop command or turn OFF the Run command and turn OFF drive output for the time set in L2-03. The
drive waits for the minimum baseblock time and then injects the amount of DC current into the motor set in b2-02
[DCI Braking Current] to stop the motor with DC current.
DC Injection Braking stops the motor more quickly than coast to stop.
Note:
If A1-02 = 3, 4, 5, 6, or 7, DC Injection Braking to Stop is not available.
Figure 12.7 DC Injection Braking to Stop
The value set in b2-04 and the output frequency when the drive receives the Stop command determine the DC
Injection Braking time. The drive calculates the DC Injection Braking time as in Figure 12.8.
Figure 12.8 DC Injection Braking Time and Output Frequency
Note:
Set L2-03 to a high value that will not trigger oC [Overcurrent] when the drive uses DC Injection Braking to stop the motor.
3 : Timed Coast->Stop
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