Setting Stop Functions; Using The Dynamic Brake - YASKAWA MECHATROLINK Sigma 2 Series User Manual

6 Parameter Setting and Functions

6.5.1 Using the Dynamic Brake

6.5 Setting Stop Functions

6.5.1 Using the Dynamic Brake

TERMS
This section describes the procedure used to stop the SERVOPACK stably.
To stop the servomotor by applying the dynamic brake (DB)
Servo OFF, set the desired mode in the following parameter. The servomotor will stop due to
machine friction if the dynamic brake is not applied.
Pn001.0 Servo OFF or Alarm Stop Mode
The SERVOPACK turns OFF under the following conditions:
• When the SV_OFF command is transmitted.
• A servo alarm occurs.
• Power is turned OFF.
Servo
Stop mode
OFF
Pn001.0 = 0
or 1
Pn001.0
= 2
Specify the Stop Mode during Servo OFF using the following parameter.
Pn001.0 Setting
0
1
2
* 1. If the servomotor is stopped or moving at extremely low speed, the
dynamic brake will not have sufficient braking power.
* 2. A dynamic brake is used when the control power are turned OFF.
1
Dynamic brake (DB)
The dynamic brake is a common way of suddenly stopping a
servomotor. Built into the SERVOPACK, the dynamic brake
suddenly stops a servomotor by electrically shorting its electri-
cal circuit.
After stopping
0
Hold dynamic brake
Dynamic
brake stop
Coast status
1
Coast to a
Coast status
stop
Uses the dynamic brake to stop the servomotor.
Maintains dynamic brake after the servomotor stops.
Uses the dynamic brake to stop the servomotor.
Releases dynamic brake after the servomotor stops, and the servomotor
coasts to a stop.
Coasts the servomotor to a stop.
The servomotor is turned OFF and motion stops due to machine friction.
6-38
1
when the SERVOPACK is
Factory Position Control
Setting:
0
Description
∗1
∗2
SERVOPACK Servomotor