YASKAWA SGD7S-****20A Series Product Manual page 173

Motor Stopping Method for Group 2 Alarms
When a group 2 alarm occurs, the Servomotor will stop according to the settings of the follow-
ing three parameters. The default setting is for zero clamping.
• Pn001 = n.X (Motor Stopping Method for Servo OFF and Group 1 Alarms)
• Pn00A = n.X (Motor Stopping Method for Group 2 Alarms)
• Pn00B = n.X (Motor Stopping Method for Group 2 Alarms)
However, during torque control, the group 1 stopping method is always used.
If you set Pn00B to n.1 (Apply dynamic brake or coast Servomotor to a stop), you can
use the same stopping method as group 1. If you are coordinating a number of Servomotors,
you can use this stopping method to prevent machine damage that may result because of dif-
ferences in the stopping method.
The following table shows the combinations of the parameter settings and the resulting stop-
ping methods.
Parameter
Pn00B Pn00A
n.
 
n. 0
(default setting) Zero-speed stop-
(default –
n.
setting)
n.
n.
(default setting) Dynamic brake
 
n. 1 –
n.
n.
n.
(default setting) Dynamic brake

n. 0
n.
n.
n.

n. 1
(default setting)
(default
n.
setting)
n.
n.
(default setting)
  
n. 2 n. 2
n.
n.
n.
(default setting)

n. 3
n.
n.
n.
(default setting)

n. 4
n.
n.
Note: 1. The setting of Pn00A is ignored if Pn00B is set to n.0 or n.1.
2. The setting of Pn00A = n.X is enabled for position control and speed control. During torque control,
the setting of Pn00A = n.X will be ignored and only the setting of Pn001 = n.X will be used.
3. Refer to the following section for details on Pn406 (Emergency Stop Torque).
Stopping the Servomotor by Setting Emergency Stop Torque on page 5-30
4. Refer to the following section for details on Pn30A (Deceleration Time for Servo OFF and Forced Stops).
Stopping the Servomotor by Setting the Deceleration Time on page 5-30
5.13 Motor Stopping Methods for Servo OFF and Alarms
Servomotor
Stopping Method
Pn001

0

ping
1

2

0

1

2 Coasting

0

1

2 Coasting

0

1 Motor is deceler-
ated using the

2
torque set in

0
Pn406 as the
maximum torque.

1

2

0

1
Motor is deceler-

2
ated according to

0
setting of Pn30A.

1

2
5.13.2 Servomotor Stopping Method for Alarms
Status after
When
Servomotor
Enabled
Stops
Dynamic
brake
Coasting
Dynamic
brake
Coasting
Dynamic
brake
Coasting
Dynamic
brake
After restart
Coasting
Coasting
Dynamic
brake
Coasting
Coasting
Classification
Setup
5
5-39