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5.13 Holding Brake
5.13.4 Output Timing of /BK (Brake) Signal When the Servomotor Is Operating
5
Ba
s
ic Function
s
That Requir
e
S
etting befor
e Operation
5-39
5.13.4
Output Timing of /BK (Brake) Signal When the
Servomotor Is Operating
If an alarm occurs while the Servomotor is operating, the Servomotor will start stopping and the
/BK signal will be turned OFF. You can adjust the timing of /BK signal output by setting the
brake reference output speed level (Rotary Servomotors: Pn507, Linear Servomotors: Pn583)
and the Servo OFF-Brake Command Waiting Time (Pn508).
Note: If zero-speed stopping is set as the stopping method for alarms, the setting of Pn506 (Brake Reference-
Servo OFF Delay Time) is used after the motor stops.
•
Rotary Servomotors
•
Linear Servomotors
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
Power supply to the Servomotor will be stopped immediately when an alarm occurs, regardless
of the setting of this parameter. The machine moving part may move due to gravity or an external
force before the brake is applied.
Important
Pn507
Brake Reference Output Speed Level
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
0 to 10,000
1 min
-1
100
Immediately Setup
Pn508
Servo OFF-Brake Command Waiting Time
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
10 to 100
10 ms
50
Immediately
Setup
Pn583
Brake Reference Output Speed Level
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
0 to 10,000
1 mm/s
10
Immediately
Setup
Pn508
Servo OFF-Brake Command Waiting Time
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
10 to 100
10 ms
50
Immediately
Setup
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Force
Speed
Position
Force
Pn508
/
S
-ON input, alarm,
or power OFF
Motor
s
peed
Motor power
s
tatu
s
/BK
s
ignal
ON (Brake relea
s
ed.)
Power not
s
upplied.
Power
s
upplied.
Motor
s
topped with dynamic
brake or by coa
s
ting
(Pn001 = n.
X)
Linear
S
ervomotor: Pn58
3
Rotary
S
ervomotor: Pn507
OFF
ON
OFF (Brake applied.)