Estun ProNet-15D - Page 73

ProNet Plus Series AC Servo User's Manual
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·When using the servomotor to control a vertical axis, the machine movable parts may shift slightly depending on the
brake ON/ OFF timing due to gravity or an external force. By using this parameter to delay turning the servo ON/ OFF, this
slight shift can be eliminated.
·For details on brake operation while the servomotor is operating, refer to (5) Setting the Brake ON/ OFF Timing When
Servomotor Running in this section.
Servo ON
Servo OFF
Brake released
Using brakes brake
Motor power up
Motor power down
Pn506 Pn505
/S-ON
/BK Output
Motor power up
Motor power up
Brake released
Servo ON
■Important
·The servomotor will turn OFF immediately when an alarm occurs, regardless of the setting of this parameter.
·The machine movable part may shift due to gravity or external force during the time until the brake operates.
(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 occuring.
Pn507
Brake Waiting Speed
Setting Range
Setting Unit
Factory Setting
Setting Validation
10～100
1rpm
100
Immediately
Pn508
Brake Waiting Time
Setting Range
Setting Unit
Factory Setting
Setting Validation
10～100
10ms
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.
Speed
Position
Torque
Speed
Position
Torque
Pn508
Brake held
Brake released
/BK Output
Servomotor Speed
/S-ON input
or alarm or
power OFF
Servo ON
Servo OFF
Servomotor stopped
by applying DB or
coasting.
(Pn004.0)
Pn507