YASKAWA SGDV SERVOPACK User Manual

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5.2 Basic Functions Settings
5-13
5
Operation
(5) Brake Signal (/BK) Output Timing during Servomotor Movement
If an alarm occurs while the servomotor is moving, the servomotor will come to a stop and the brake signal 
(/BK) will be turned OFF. The timing of
brake signal (/BK) output can be adjusted by setting the brake refer-
ence output speed level (Pn583) and the waiting time for brake signal when motor running (Pn508).
Note: If the servomotor is set so that it comes to a zero-speed stop for an alarm, follow the information in (4) Brake ON
Timing after the Servomotor Stops after the servomotor comes to a stop for a zero position reference.
The servomotor will turn OFF immediately when an alarm occurs, regardless of the set-
ting of this parameter. The machine movable part may shift due to gravity or external
force
before the brake operates.
Pn583
Brake Reference Output Speed Level
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 10000 1 mm/s 10 Immediately Setup
Pn508
Waiting Time for Brake Signal When Motor Running
Classification
Setting Range Setting Unit Factory Setting When Enabled
10 to 100 10 ms 50 Immediately Setup
Speed
Position
Force
Speed
Position
Force
/BK Signal Output Conditions
When Servomotor Moving
The /BK signal goes to high level
(brake ON) when either of the fol-
lowing conditions is satisfied:
• When the motor speed falls
b
elow the level set in Pn583
after the power to the servomo-
tor is turned OFF.
• When the time set in Pn508 is
excee
ded after the power to the
servomotor is turned OFF.
/S-ON input
or alarm or
power OFF
Motor speed
Pn583
Servo ON
Servo OFF
Motor stopped by applying
DB or by coastingPn001.0
Pn508
Power to motor
ON
OFF
/BK output
Brake
released
(ON)
Brake applied
(OFF)
47
• The servomotor will be limited to its maximum speed even if the value set in Pn583 is
higher than the maximum speed.
• Do not allocate the movement detection signal (/TGON) and the brake signal (/BK) to
the same terminal. The /TGON signal will otherwise be turned ON by the falling speed
on a vertical axis, and the brake may not operate.
For the /BK signal, do not use the terminal that is already being used for another
signal.

YASKAWA SGDV SERVOPACK Specifications

General

Model	SGDV
Type	SERVOPACK
Control Modes	Position, Speed, Torque
Communication Interface	MECHATROLINK-II, MECHATROLINK-III, EtherCAT
Protection Rating	IP20
Operating Temperature	0°C to 55°C
Vibration Resistance	5.9 m/s² (0.6G) at 10-60Hz
Shock Resistance	49 m/s² (5G)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overload, Regenerative overload, Encoder error