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6.10.5
Communication failure when booting or in cyclic operation
If at least one SINAMICS Link node does not correctly run up after commissioning or fails in
cyclic operation, then alarm A50005 is output to the other nodes: "Sender was not found on
SINAMICS Link".
The alarm value contains the number of the sender that was not found. The alarm is
automatically canceled after the fault has been resolved at the node involved.
If several nodes are involved, the message occurs a multiple number of times consecutively
with different node numbers. The alarm is automatically canceled after the fault has been
resolved at the nodes involved.
When a node fails in cyclic operation, in addition to alarm A50005, fault F08501 is output:
"COMM BOARD: Setpoint timeout".
Fault F08501 is not triggered at node 1. This node should be used for specifying setpoint
values to other nodes.
6.10.6
Transmission times for SINAMICS Link
Transmission times at a communication cycle of 1 ms
p2048 or p8848 = 1 ms
Bus cycle [ms]
Transmission times at a communication cycle of 4 ms
p2048 or p8848 = 4 ms
Bus cycle [ms]
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
Sync both
0.5
1.0
1.0
1.5
2.0
3.0
Sync both
0.5
1.0
1.0
1.5
2.0
3.0
6.10 Communication via SINAMICS Link
Transfer times [ms]
Sync send
Sync receive
1.5
1.3
2.1
2.1
3.6
3.1
Transfer times [ms]
Sync send
Sync receive
3.0
2.8
3.6
3.6
5.1
4.6
Operation
Async both
1.6
2.2
2.8
Async both
4.6
5.2
5.8
399
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