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Dynamic Brake
Dynamic Brake
Dynamic brake is built in this driver for emergency stop.
For this dynamic brake observe the precautions given below.
<Notes>
1. This dynamic brake functions for emergency stop of the driver.
If the motor is started by an external unit, it would acts as a generator and, as a
result, short current would flow while the dynamic brake is acting, which could
then result in fuming and fire.
2. The dynamic brake is a short-time rating brake just for emergency stop use. If the dynamic brake acts
commencing from the time of high speed running, provide a lead time of about 3 minutes after complete stop.
This dynamic brake can be started in the following cases.
(1) Against “Servo OFF”
(2) When any of the protective functions actuate
(3) When the overtravel inhibit inputs (CWL, CCWL) of the connector CN X5 actuate
In the above cases (1) - (3), it is selectable by setting up the applicable parameters whether the dynamic
brake is started or put in free running during deceleration or after complete stop.
However, the dynamic brake is kept actuating when the power is switched OFF.
Don’t start and stop by ON/OFF of the Servo-ON signal (SRV-ON signal).
Doing so could result in rupture of the dynamic brake circuit built in the driver.
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