7 precautions for the use of sgdv servopacks, 1 software limit settings, 2 when the tuning-less function is enabled – Yaskawa MP2000 Series: Built-in SVB or SVB-01 Motion Module User Manual

Page 442: 3 saving the parameter bank data, 1 ) gain related settings, 2 ) gain-related motion commands, 3 ) gain switching

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11.7 Precautions for the Use of SGDV SERVOPACKs

11.7.1 Software Limit Settings

11-27

Utility Functions

11.7 Precautions for the Use of SGDV SERVOPACKs

11.7.1 Software Limit Settings

Use the software limit setting of the Machine Controller, not that of the SGDV SERVOPACK.

11.7.2 When the Tuning-less Function is Enabled

In SGDV SERVOPACKs, Pn170.0 is set to 1 (default setting) and the tuning-less function is enabled. Any actions
related to the settings of gain-related parameters are disabled.

( 1 ) Gain Related Settings

The related servo parameters are changed when the User Constants Self-Writing Function of Function Selection Flag 1
(fixed parameter) is enabled and the following parameters are changed. The settings, however, do not affect actual
operations.

( 2 ) Gain-related Motion Commands

The related servo parameters are changed in accordance with the results obtained by executing the following motion
commands.
The settings, however, do not affect actual operations.

( 3 ) Gain Switching

Even if the setting for Mode Setting 1of the Gain Switch is changed, this setting does not affect actual operations.

11.7.3 Saving the Parameter Bank Data

When using the Parameter Bank function, the Bank data (Pn920 to Pn95F) is not saved in the nonvolatile memory.
These parameters must always be reset if using a MECHATROLINK network between the Motion Controller and the
SERVOPACK.
If these parameters are set to 0 and have not been changed, the Parameter Bank function operates in accordance with
the minimum value of each parameter.

Register no.

Name

Setting range

Default value

Meaning

OW

2E

Position Loop Gain

0 to 32767

300

1 = 0.1/s

OW

2F

Speed Loop Gain

1 to 2000

40

1 = 1 Hz

OW

30

Speed Feed Forward Amends

0 to 32767

0

1 = 0.01%

OW

32

Position Integration Time Constant

0 to 32767

0

1 = 1 ms

OW

34

Speed Integration Time Constant

15 to 65535

0

1 = 0.01 ms

Register no.

Setting

Meaning

OW

08

14

Change Speed Loop Gain (KVS)

15

Change Position Loop Gain (KPS)

16

Change Feed-forward (KFS)

26

Change Position Loop Integral Time Constant (KIS)

Register no.

Name

Meaning

Remark

OW

01

Mode Setting 1

Bit 4: Gain Switch

0: OFF, 1: ON

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