YASKAWA SVC User Manual page 50

2.5 MECHATROLINK Transmission Cycle and the Number of Connected Slave Stations
2.4.3 Mixed Cascade/Star Connections
 Mixed Cascade/Star Connections
Transmission
125 μs
250 μs
500 μs
1.5 ms
*1.
Up to 16 Servo Drive stations can be connected.
*2.
Up to 32 Servo Drive stations can be connected.
Note: The above connection conditions assume that the following conditions are met: Number of transmission
bytes: 48, Distance between stations: 100 m., Number of retries: 1.
Important
2-18
Number of Connected Stations
Cycle
SVC
1 to 4
1 to 8
1 to 14
*1
1 ms
1 to 21
−
−
2 ms
−
3 ms
If the SigmaWin+ is connected through the MP3000, the SigmaWin+ may not be usable if there
are too many SERVOPACK stations connected.
If this occurs, either connect the SigmaWin+ to the SERVOPACK (CN7) directly, or lengthen the
transmission cycle.
SVC32
1 to 4 Only star connections can be used.
A single cascade connection series must con-
1 to 8
sist of no more than 2 stations.
A single cascade connection series must con-
1 to 14
sist of no more than 6 stations.
A single cascade connection series must con-
1 to 29
sist of no more than 7 stations.
A single cascade connection series must con-
*2
1 to 42
sist of no more than 8 stations.
A single cascade connection series must con-
*2
1 to 42
sist of no more than 16 stations.
A single cascade connection series must con-
*2
1 to 42
sist of no more than 18 stations.
Connection Conditions