Setting Stop Functions; Using The Dynamic Brake - Omron OMNUC W Series Manual

8.4 Setting Stop Functions

This section describes the procedure used to stably stop the Servo Driver.

8.4.1 Using the Dynamic Brake

To stop the Servomotor by applying the dynamic brake (DB), set the desired mode in the fol-
lowing parameter. The Servomotor will stop due to equipment friction if the dynamic brake
is not applied.
Pn001.0
The Servo Driver turns OFF under the following conditions:
• When the SV_OFF Command is sent.
• A servo alarm occurs.
• Power is turned OFF.
Specify the Stop Mode if any of these occurs during Servomotor operation.
Pn001.0 Setting
Select stop if an alarm occurs when
Servomotor is OFF.
Servo
OFF
Pn001.0
= 0 or 1
Pn001.0
= 2
0
Uses the dynamic brake to stop the Servomotor.
Maintains dynamic brake after the Servomotor stops.
1
Uses the dynamic brake to stop the Servomotor.
Releases dynamic brake after the Servomotor stops, and the Ser-
vomotor coasts to a stop.
2
Servomotor stopped with free run.
(Default setting)
The Servomotor is turned OFF and stops due to equipment fric-
tion.
* 1. If the Servomotor is stopped or moving at extremely low speed, it will
stop by free run.
* 2. A dynamic brake is used when the control power and main power are
turned OFF.
Note The dynamic brake is an emergency stop function. Do not repeatedly start and stop the
Servomotor using the SV_ON/SV_OFF command or by repeatedly turning power ON and
OFF, because the Servo Driver internal elements will deteriorate.
8-15
Default Setting:
0
Stop mode After stopping
0
Hold dynamic brake
Dynamic
brake stop
Free run
1
Stop by free
Free run
run
Description
*2
8.4 Setting Stop Functions
Coasts the Servo-
motor to a stop.
*1
8