6 Parameter Setting and Functions
6.5.2 Using the Holding Brake
6-42
Holding Brake Setting
Set the following parameters to adjust brake ON timing so the holding brake is applied when
the servomotor stops.
Set the brake timing used when the Servo is turned OFF by the SV_OFF command or alarm
occurrence during servomotor with brake operation.
Brake ON timing when the servomotor stops must be adjusted properly because servomotor
brakes are designed as holding brakes. Adjust the parameter settings while observing
machine operation.
/BK Signal Output Conditions During Servomotor Operation
The circuit is open under either of the following conditions:
The actual setting will be the maximum speed even if Pn507 is set higher than the maximum
speed.
Pn507
Brake Reference Output
Speed Level during Mo-
tor Operation
Unit:
min
-1
Setting
Range:
0 to 10000
Factory
Setting:
100
Position Control
Pn508
Timing for Brake Refer-
ence Output during Mo-
tor Operation
Unit:
10 ms
Setting
Range:
10 to 100
Factory
Setting:
50
Position Control
1
Motor speed drops below the setting at Pn507 after Servo OFF.
2
The time set at Pn508 has elapsed since Servo OFF.
SV_OFF
command
Motor speed
(min )
Pn-507
/BK output
Stop by dynamic brake
or coast to a stop.
(Pn001.0)
Pn508
Release
brake
Servo ON
Hold with brake
Servo OFF
-1
