This is an alternative configuration, if the NDBU-95 cannot be adjusted to REGEN mode.
One or more NDBU-95 devices (DDCS branching unit) are used to distribute the DDCS telegrams. 8 drives can be connected to each NDBU-95. Up to 16 NDBU-95 devices can be cascaded.
The device ibaBM-DDCS is coupled into the FO connection between NDBU-95 (MSTR.TX) and the controller (DDCS.RX). ibaBM-DDCS can read all telegrams sent from the drives to the controller. In order to read the output telegrams from the controller, a „bridge“ has to be integrated at a free NDBU-95 port, i.e. the TX and the RX port must be connected via a FO cable.
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When acquiring data sets in a star topology, ensure that the connected drives are set to “Star” topology. In DriveWindow, the parameter “CH0 HW CONNECTION” in the parameter set “DDCS Control” of each drive has to be checked and set to “STAR”. |
Settings at the branching unit NDBU-95
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Address setting (S1): Address range 76 … 124 Default: (01111100) = 0x7C |
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Operating mode selection (X13): Adjust to DDCS/DRIVEBUS |
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Transfer rate (X12): Default setting CH0: 4 Mbit/s |
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ibaBM-DDCS connection to NDBU-95, DDCS/DRIVEBUS mode
