Digital Brushless AC Servo Drive system - Ref. 1809 BCSD-63/116
5. Setting the Brake ON/OFF Timing When Servomotor Running.
The following parameters can be used to change the /BK signal output conditions when a stop reference
is output during servomotor operation due to the servo OFF or an alarm occurring.
4.3.5. Instantaneous Power Loss Settings
Determines whether to continue operation or turn the servo OFF when the power supply voltage to the
servodrive main circuit is instantaneously interrupted.
Pn507
Brake Waiting Speed Speed
Setting Range Setting Unit Factory Setting Setting Validation
10 ~ 100 1 rpm 100 Immediately
Pn508
Brake Waiting Time Speed
Setting Range Setting Unit Factory Setting Setting Validation
10 ~ 100 10 ms 50 Immediately
/BK Signal Output Conditions When Servomotor Running
The /BK signal goes to high level (brake ON) when either of the following conditions is satisfied:
- When the servomotor speed falls below the level set in Pn507 after servo OFF.
- When the time set in Pn508 is exceeded after servo OFF.
Parameter Signal Name and Meaning
Pn000
b.0
Continue operation when the power supply voltage to servodrive main circuit is
instantaneously interrupted.
b.1
An alarm occurs when the power supply voltage to servodrive main circuit is
instantaneously interrupted.
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