YASKAWA SVC User Manual page 88

 Maximum Number of Absolute Encoder Rotations
Set the maximum number of rotations that the absolute encoder can manage. This parameter
is used to manage position information when an absolute encoder is used for an infinite-length
axis.
No. Name
Maximum Number of Absolute
38
Encoder Rotations
Setting Precautions
• Set this parameter to match the settings for the encoder.
• Set this parameter to match the value set for the Multiturn Limit SERVOPACK parameter.
For infinite-length axes (i.e., when bit 0 in fixed parameter No. 1 is set to 1), set this parame-
Example
ter to any value less than or equal to 65,534 (the same value as Pn205).
Fixed Parameter No. 38 and
SERVOPACK Parameter Pn205 = 65,535
+32767
Multi-turn
Forward
Data
0
-32768
 Feedback Speed Movement Averaging Time Constant
Set the moving average time constant for the feedback speed. The IL40 monitor param-
eter (Feedback Speed) contains the value that is determined by the time constant in this
parameter and the unit-converted difference between feedback positions for each high-speed
scan.
No. Name
Feedback Speed Movement
42
Averaging Time Constant
 User-specified SERVOPACK Parameter Number
Specify the SERVOPACK parameter number (the  in Pn) that is to be applied auto-
matically.
The value set for the OL70 setting parameter (User-specified SERVOPACK Parameter
Set Value) is automatically written to the SERVOPACK parameter that is set in this parameter.
No. Name
User-specified SERVOPACK
44
Parameter Number
Setting Precautions
This parameter is valid when bit B (User-specified SERVOPACK Parameter Auto-Write) in fixed
parameter No. 1 is set to 1 (Enabled).
 User-specified SERVOPACK Parameter Size
Set the data size of the SERVOPACK parameter that is specified in fixed parameter No. 44
(User-specified SERVOPACK Parameter Number).
No. Name
User-specified SERVOPACK
45
Parameter Size
Setting Range
−1
31
0 to 2
Reverse
Number of
revolutions
Setting Range
0 to 32
Setting Range
0 to 65,535
Setting Range
1 or 2
3.4 Motion Parameter Details
3.4.1 Fixed Parameter Details
SVC
Setting Unit
Revolutions
Fixed Parameter No. 38 and
SERVOPACK Parameter Pn205 ≠ 65,535
Value of Pn205
Multi-turn
Forward
Data
0
Setting Unit
ms
SVC
Setting Unit
0
SVC
Setting Unit
word
Default
65,534
Reverse
Number of
revolutions
SVC SVR
Default
10
Default
0
Default
1
3-35