Omron OMNUC W R88A-NCW152-DRT, Manual

Page: 196 / 292

8.2 Settings According to Equipment Characteristics
8-9
8
8.2.2 Stop Mode Selection at Servo OFF
The W-series Servo Driver turns OFF under the following conditions:
• The SV_OFF command is transmitted.
• A servo alarm occurs.
• Power is turned OFF.
Specify the Stop Mode if any of these occurs during Servomotor operation.
Note The dynamic brake electrically applies a brake by using a resistor to consume Servomotor rotation
energy. Refer to
8.4.1 Using the Dynamic Brake .
Note
If the Servomotor is stopped or rotating at extremely low speed when the item above is set to 0
(dynamic brake status after stopping with the dynamic brake), then braking power is not generated
the same as in free fun.
1
Dynamic brake
The dynamic brake is a common way of suddenly stopping
a Servomotor. Built into the Servo Driver, the dynamic
brake suddenly stops a Servomotor by electrically shorting
its electrical circuit.
Pn001.0 Select stop if an alarm occurs when
Servomotor is OFF. Default Setting:
2
Coasts the Servo-
motor to a stop.
Parameter Setting Item
Pn001.0
0
Uses the dynamic brake
1
to stop the Servomotor, and
maintains dynamic brake status after stopping.
1
Uses the dynamic brake to stop the Servomotor, and
cancels dynamic brake status after stopping to go into
coast status.
2
(Default setting)
Servomotor stopped with free run. The Servomotor is
turned OFF and stops due to equipment friction.
Stop Mode After stopping
Stop by free run
Stop by dynamic
brake
Hold with
dynamic brake
Free run
0
1
Pn001.0
= 0 or 1
Servo
OFF
Pn001.0 = 2
Free run
Servo Driver Servomotor