8.4 Setting Stop Functions
8-15
8
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.
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.
* 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.
Pn001.0
Select stop if an alarm occurs when
Servomotor is OFF.
Default Setting:
0
Coasts the Servo-
motor to a stop.
Pn001.0 Setting
Description
0
Uses the dynamic brake to stop the Servomotor.
Maintains dynamic brake after the Servomotor stops.
*1
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
(Default setting)
Servomotor stopped with free run.
*2
The Servomotor is turned OFF and stops due to equipment fric-
tion.
Stop mode
After stopping
Stop by free
run
Dynamic
brake stop
Hold dynamic brake
Free run
0
1
Pn001.0
= 0 or 1
Servo
OFF
Pn001.0
= 2
Free run
Summary of Contents for OMNUC W R88A-NCW152-DRT
Page 1: ...Cat No I538 E3 1 DeviceNet Option Unit OMNUC W Series Model R88A NCW152 DRT...
Page 53: ...4 Connectors 4 5 3 DeviceNet Network Configuration Restrictions 4 22 4...
Page 97: ...5 Parameter Settings 5 3 8 Notch Signal Output Positioning 5 44 5...
Page 211: ...8 Servo Driver Settings 8 5 3 Absolute Encoder Multi turn Limit Setting 8 24 8...
Page 257: ...9 Troubleshooting 9 46 9...