YASKAWA SVC - Multiturn Limit; Check Items before Setup; Setting Procedure

5.3 Multiturn Limit
5.3.1 Check Items before Setup
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Machine-Specic Motion Control
5.3 Multiturn Limit
This section describes how to set the multiturn limit from the MP3000 or SERVOPACK.
5.3.1 Check Items before Setup
Check the following items before setting the multiturn limit.
• Synchronous communications are established with the SERVOPACK (bit 0 in IW
 00 is 1).
• The Servomotor is OFF (Servo OFF) (bit 1 in IW
 00 is 0).
• An absolute encoder is used.
• The Pn002 = n.
 x  SERVOPACK parameter (Encoder Usage in Application Function
Selections 2) is set to 0 (Use the encoder according to the encoder specifications).
• A multiturn limit disagreement alarm (A.CC0) has occurred on the SERVOPACK.*
* A multiturn limit disagreement alarm (A.CC0) is displayed when the multiturn limit setting is changed with parame-
ter Pn205, because the value will differ from the value that is set for the encoder.
5.3.2 Setting Procedure
Use the following procedure to set the multiturn limit from the MP3000.
1. Writing the Multiturn Limit Setting Request
Use the following parameter settings to write to memory.
2. Preparing for Execution
Use the following parameter settings to write to memory.
3. Setting the Multiturn Limit
Use the following parameter settings to write to memory.
If there is a A.CC0 alarm (Multiturm Limit Mismatch) in the SERVOPACK, communications
cannot be synchronized just by turning ON the power supply to the MP3000. Use the Alarm
Clear bit (OW
00, bit F) to synchronize communications.
Information
Register
Addresses
Name Setting Description
OW
51 SERVOPACK Parameter Size 1 Number of words
OL52 SERVOPACK Parameter Setting 1013 hex
The multiturn limit setting
request code
OL
58 Address Setting
80004000
hex
Virtual memory address in
the SERVOPACK
Register
Addresses
Name Setting Description
OW
51 SERVOPACK Parameter Size 1 Number of words
OL
52 SERVOPACK Parameter Setting 2
The code required for the
preliminary processing
OL
58 Address Setting
80004002
hex
Virtual memory address in
the SERVOPACK
Register
Addresses
Name Setting Description
OW
51 SERVOPACK Parameter Size 1 Number of words
OL
52 SERVOPACK Parameter Setting 1
The code required to send
the data and perform the
calibration operation
OL
58 Address Setting
80004002
hex
Virtual memory address in
the SERVOPACK