Advertisement
Sigma II User's Manual
n
Holding Brake Setting
Set the following parameters to adjust brake ON timing so the holding brake is
applied when the servomotor stops.
Parameter
Brake Reference Output Speed
Pn507
Level
Timing for Brake Reference Out-
Pn508
put during Motor Operation
Set the brake timing used when the servo is turned OFF by input signal /S-ON (CN1-
40) or when an alarm occurs during motor operation.
Brake ON timing when the servomotor stops must be adjusted properly because ser-
vomotor brakes are designed as holding brakes. Adjust the parameter settings while
observing equipment operation.
/BK Signal Output Conditions During Servomotor Operation
The circuit is open under either of the following conditions:
•
Motor speed drops below the setting at Pn507 after servo OFF.
•
The time set at Pn508 has elapsed since servo OFF.
The actual speed used will be the maximum speed even if Pn507 is set higher than
the maximum speed.
Signal
Setting Range: 0 to 10000rpm
Default Setting: 100rpm
Setting Range: 0 to 100 x 10ms
Default Setting: 50 x 10ms
/S-ON input
Power OFF by
Servo ON
/S-ON (CN1-40)
input or alarm
occurrence
Motor speed
(rpm)
Pn-507
Release
brake
/BK output
5-68
Chapter 5: Parameter Settings and Functions
Setting
Speed/Torque Control,
Position Control
Speed/Torque Control,
Position Control
Servo OFF
Stop by dynamic brake
or coast to a stop.
(Pn001.0)
Hold with brake
Pn508
Description
Advertisement
