6.12 Absolute Encoders
6.12.8 Multiturn Limit Setting
6
Application Function
s
6-83
Note: This parameter is enabled when you use an absolute encoder.
The data will change as shown below when this parameter is set to anything other than the
default setting.
•
If the motor operates in the reverse direction when the multiturn data is 0, the multiturn data
will change to the value set in Pn205.
•
If the motor operates in the forward direction when the multiturn data is at the value set in
Pn205, the multiturn data will change to 0.
Set Pn205 to one less than the desired multiturn data.
If you change the multiturn limit in Pn205, an A.CC0 alarm (Multiturn Limit Disagreement) will be
displayed because the setting disagrees with the value in the encoder. Refer to the following
section for the procedure to change the multiturn limit settings in the encoder.
6.12.9 Multiturn Limit Disagreement Alarm (A.CC0)
Pn205
Multiturn Limit
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
0 to 65,535
1 Rev
65,535
After restart
Setup
Default Setting
Not Default Setting
The multiturn data will always be 0 in the following cases. It is not necessary to reset the
absolute encoder in these cases.
•
When you use a single-turn absolute encoder
•
When the encoder is set to be used as a single-turn absolute encoder (Pn002 = n.
2
)
Absolute encoder-related alarms (A.810 and A.820) will not occur.
0
1
2
3
4
5
6
7
8
9
100
200
3
00
0
100
50
Number of table rotation
s
Multiturn data
Number of table rotation
s
Multiturn data
S
etting of Pn205 = 99
Number of rotation
s
Speed
Position
Torque
+
3
2,767
-
3
2,768
0
Number of
rotation
s
Multiturn data
Forward
Rever
s
e
0
Number of
rotation
s
Multiturn data
S
etting of Pn205
Forward
Rever
s
e
Information
