YASKAWA SGD7S Product Manual page 163

The brake operates when either of the following conditions is satisfied:
• When the Motor Speed Goes below the Level Set in Pn507 for a Rotary Servomotor or in
Pn583 for a Linear Servomotor after the Power Supply to the Motor Is Stopped
SV_OFF (Servo OFF)
command input,
Servo ON
alarm, or power OFF
Motor speed
Power
supplied.
Motor power status
/BK signal ON (Brake released.) OFF (Brake applied.)
• When the Time Set In Pn508 Elapses after the Power Supply to the Motor Is Stopped
SV_OFF (Servo OFF)
command input,
Servo ON
alarm, or power OFF
Motor speed
Power
supplied.
Motor power status
ON (Brake released.)
/BK signal
The Servomotor will be limited to its maximum speed even if the brake reference output speed
level (Rotary Servomotor: Pn507, Linear Servomotor: Pn583) is higher than the maximum speed.
Important
5.12.4 Output Timing of /BK (Brake) Signal When the Servomotor Is Operating
Servo OFF
Rotary Servomotor: Pn507
Linear Servomotor: Pn583
Motor stopped with dynamic
brake or by coasting
(Pn001 = n.
Power not
supplied.
Pn508
Servo OFF
Rotary Servomotor: Pn507
Linear Servomotor: Pn583
Motor stopped with dynamic
brake or by coasting
(Pn001 = n.
Power not supplied.
OFF (Brake applied.)
Pn508
5.12 Holding Brake
X)
X)
5
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