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CODE: ER2201 SHORTMESSG: CAN_BUS_ERROR
DETAILED DESCRIPTION:
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Function controller ROT cannot transmit or receive on CAN interface.
Reason for error:
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- PDS not properly jumpered
- CAN communication disturbed
- Defective cables or carbon brushes or data slip ring
- MASTER_SP defective
- ROT defective
What to do?
-----------
1: Perform the test 'Service/Test/CAN' for at least 3 minutes, then press Done.
Replace firmware and board of asynchronous controller which is failing
in field 'Service/MSI/Req_T02/can_rec_liveck_d' on page 8.
2: Check the line adaption for the PDS.
3: Check F5 on MASTER_SP.
4: Check F4, F5, F6 of the ACS transfomer.
5: Check surface and carbon brushes of the data slip ring.
6: Measure the "24V" voltage on D30 testpoints X33-X12 (CommPos-CommNeg) on
MASTER_SP and remove consecutively the following connections on MASTER_SP:
X7 (PHS_SP), X10 (DAT_COL_RI_SP), X4 (KEY1), X5 on ROT (KEY2) and at
last X2 (ROT).
If "24V" is increasing by disconnecting one of the controllers, either the
controller itself or the coresponding cable may be defective :
ROT: W101 KEY2: W114 KEY1: W103 PHS_SP: W127
ROSY_SP: W210 DAT_COL_RI (to ROSY_SP and XRS): W108
7: Replace MASTER_SP ( D30+D332+FW ).
8: Replace the rectifier of the ACS transformer.
9: Replace the ACS transformer.
10: Replace ROT.
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