YASKAWA Sigma-7 SGD7S Series

Set the coefficient of the deviation between the motor and the external encoder per motor
rotation.
This setting can be used to prevent the motor from running out of control due to damage
to the external encoder or to detect belt slippage.
n Setting Example
n Increase the value if the belt slips or is twisted excessively.
n If this parameter is set to 0, the external encoder value will be read as it is.
n If you use the default setting of 20, the second rotation will start with the deviation for
the first motor rotation multiplied by 0.8.
Pn52A = 0
Pn52A = 100
Pn52A = 20
Deviation between Servomotor and external encoder
Large
Number of rotations
4th rotation3rd rotation
1st rotation
2nd rotation
Small
Fig. 339: Pn52A (Multiplier per One Fully-closed Rotation)
n Related Parameters
Multiplier per One Fully-closed Rotation
Setting
Range
Setting Unit Default Set-
ting
When Ena-
bled
Classifica-
tion
Pn52A 0 to 100 1% 20 Immediately Setup
(applies to Position Control)
11.4.9 Analog Monitor Signal Settings
You can monitor the position deviation between the Servomotor and load with an analog
monitor.
Parameter Name Description When Ena-
bled
Classifica-
tion
Pn006
n.07
Analog Mon-
itor 1 Signal
Selection
Position deviation
between motor and
load (output unit:
0.01 V/reference
unit).
Immediately Setup
Pn007
n.07
Analog Mon-
itor 2 Signal
Selection
Position deviation
between motor and
load (output unit:
0.01 V/reference
unit).
Pn52A (Multiplier per One
Fully-closed Rotation)
Sigma-7 Series SERVOPACKs
Fully-Closed Loop Control
Parameter and Object Settings for Fully-closed Loop Control > Analog Monitor Signal Settings
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