Yaskawa Sigma II Series SGMVH - Manual (Page 206)

8.3 Setting Common Basic Functions
8
Operation
8-25
(5) Setting the Brake ON 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.
Pn507
Brake Reference Output Speed Level
Setting Range Setting Unit Factory Setting Setting Validation
0 to 10000 1 min -1 100 Immediately
Pn508
Timing for Brake Reference Output during Motor Operation
Setting Range Setting Unit Factory Setting Setting Validation
10 to 100
(100 to 1000 ms)
10 ms
50
(500 ms)
Immediately
/BK Signal Output Conditions When Servo-
motor Running
The /BK output signal goes to high level (brake
ON) when either of the following conditions is
satisfied:
• When the motor speed falls below the level set
in Pn507 after the servo OFF.
• When the time set in Pn508 is exceeded after
the servo OFF.
„ IMPORTANT
• The servomotor will be limited to its maximum speed even if the value set in Pn507 is higher than the maximum speed.
• Allocate the running output signal (/TGON) and the brake interlock output signal (/BK) to different terminals.
• If the brake interlock output signal (/BK) and running output signal (/TGON) are allocated to the same output terminal,
the /TGON signal will go to low level at the speed at which the movable part drops on the vertical axis, which means that
the /BK output signal will not go to high level even if the conditions of this parameter are met. (This is because signals are
output with OR logic when multiple signals are allocated to the same output terminal.) For output signal allocations, refer
to 7.3.3 Output Circuit Signal Allocation.
Speed Position Torque
Speed Position Torque
/S-ON input
Or alarm or
power OFF
Motor speed
Pn507
/BK output
Brake released
(Motor stopped by applying
DB or by coasting.)
Pn001.0
Pn508
Brake held
Servo ON Servo OFF