YASKAWA SGD7S Product Manual page 253

7.6 Convenient Function to Use during Trial Operation
7.6.3 Test without a Motor
If you use fully-closed loop control, the external encoder information is also used.
External Encoder Connection
Connected
Not connected
• Linear Servomotors
Motor Connection
Connected
Not connected
• Related Parameters
Pn000
Pn282
Pn00C
Motor Position and Speed Responses
For a test without a motor, the following responses are simulated for references from the host
controller according to the gain settings for position or speed control.
• Servomotor position
• Motor speed
• External encoder position
The load model will be for a rigid system with the moment of inertia ratio that is set in Pn103.
7-22
Status
External encoder infor-
mation
• Resolution
• Encoder type
Information That Is Used
Status
Motor information
Linear encoder informa-
tion
• Resolution
• Encoder pitch
• Encoder type
Motor information
Linear encoder informa-
tion
• Resolution
• Encoder pitch
• Encoder type
Parameter
n.0
When an encoder is not connected, start as
(default setting) SERVOPACK for Rotary Servomotor.
When an encoder is not connected, start as
n.1
SERVOPACK for Linear Servomotor.
Linear Encoder Pitch
Setting Range Setting Unit
0 to 6,553,600
Parameter
n.0 Use 13 bits as encoder resolution for tests
without a motor.
(default setting)
Use 20 bits as encoder resolution for tests
n.1
without a motor.
Use 22 bits as encoder resolution for tests
n.2
without a motor.
Use 24 bits as encoder resolution for tests
n.3
without a motor.
n.0
Use an incremental encoder for tests without
a motor.
(default setting)
Use an absolute encoder for tests without a
 
n. 1
motor.
Information That Is
Used
Information in the external encoder that is con-
nected
• Resolution: 256
• Encoder type: Incremental encoder
Information in the motor that is connected
Information in the linear encoder that is connected
Setting of Pn000 = n.X (Rotary/Linear Startup
Selection When Encoder Is Not Connected)
• Resolution: 256
• Encoder pitch: Setting of Pn282 (Linear Encoder Pitch)
• Encoder type: Setting of Pn00C = n.X (Encoder
Type Selection for Tests without a Motor)
Meaning
Default Setting
0.01 μm
0
Meaning
Source of Information
Source of Information
When Enabled Classification
After restart
When Enabled Classification
After restart
When Enabled Classification
After restart
Setup
Setup
Setup