![Veichi SD780 Series Скачать руководство пользователя страница 66](http://html1.mh-extra.com/html/veichi/sd780-series/sd780-series_manual_3919156066.webp)
5 Operation
60 SD780 Series Servo Technical Manual
turned OFF, the /BK signal output time is subject to 1.
When the time set in Pn009 is exceededafter the power to the servo motor is turned OFF, and the
output time of /BK signal is subject to 2.
The motor stops locking /BK Signal OFF timing
When the servo motor is stopped, the brake (/BK) signal and the servo ON (/S-ON) signal are
turned off at the same time. By setting Pn008, it is possible to change the time from when the
servo ON (/S-ON) signal is OFF to when the motor actually enters the non-energized state.
Note:
An alarm occurs when the servo motor is locked. Regardless of this setting, the servo motor
immediately enters the non-energized state.
At this time, the machine may move before the brake due to the delay of the brake action.
5.1.6 Regenerative Resistor
Refer to “Regeneration Resistor Connection” for the wiring method. When connecting an external
regenerative resistor, set parameters Pn012 and Pn013 according to the external resistance.
The regenerative resistor capacity should be set to a value that matches the allowable capacity of
the connected external regenerative resistor. The setting differs depending on the cooling condition
of the external regenerative resistor.
• Self-cooling method (natural convection cooling): Set to 20% or less of the regenerative resistor
capacity (W).
• Forced air cooling: Set to 50% or less of the regenerative resistor capacity (W).
Example: When the capacity of the self-cooling external regenerative resistor is 100W, the setting
value is 100W × 20% = 20W. Therefore, set Pn012 = 2 (setting unit: 10W).
Servo enable signal signal (/S-ON)
Motor energized
Brake chain signal (/BK)
ON
OFF
Brake holding
The motor is not
powered
Motor energized
Brake release
Pn008