REXROTH VisualMotion 9 - 409 SERCOS Disconnect Error; 411 Drive %D Phase 4 Switch Error; 412 No Drives Were Found on Ring

VisualMotion 9 Troubleshooting Guide Monitoring and Diagnostics 3-17
DOK-VISMOT-VM*-09VRS**-WA02-EN-P
409 SERCOS Disconnect Error
The SERCOS fiber optic ring was disconnected or a drive connected to
the ring was powered down while in Phase 3 or 4. A more descriptive
message will be displayed in the extended diagnostic control parameter
C-0-0124.
Cause:
1. A fiber optic cable has been disconnected or damaged somewhere in
the SERCOS ring.
2. A drive in the system may contain old firmware.
Remedy:
1. Check the fiber optic connections, the addresses set on the drives,
and the drive firmware versions.
2. If a new drive was added to the SERCOS ring, make sure it contains
current drive firmware.
411 Drive %d Phase 4 Switch Error
Cause:
The SERCOS phase 4 switch command failed for drive %d (where %d =
drive number). This usually indicates that configuration parameters for the
drive are invalid or have not been saved. This message is displayed
when an error occurs while the drive is switching from phase 3 to phase
4.
Note: Do not clear the error or switch to parameter mode before
viewing a list of invalid parameters. Doing so will clear any
chance of viewing invalid parameters.
Remedy:
1. View drive diagnostic using DriveTop. If the drive status indicates
parameters are invalid or lost, display the Phase 3 error parameter list
for Drive %d (Step 2).
2. To view phase 4 switch errors for the specific drive, select Data ⇒
⇒⇒
⇒
Parameters, select the appropriate drive and double click on
SERCOS parameter S-0-0022. This parameter will list all parameters
that are outside of their allowable ranges. Once the list is displayed,
switch to parameter mode and change the invalid parameters or
download a valid parameter file to the drive.
3. If the drive is not communicating, check the connections and the
addresses. If drive parameters were just downloaded, switch back
into parameter mode to reinitialize the interface.
412 No drives were found on ring
Cause:
No drives were found when the control initialized the SERCOS ring to
Phase one.
Remedy:
Check the addresses set on the drives, in the VisualMotion program, and
in the control parameters. Also, check that power is applied to all the
drives and that the fiber optic connections are correct.