74 Program features
Follower settings:
• Master/follower link activation
• 60.01 M/F communication port (fiber optic channel or XD2D selection)
• 60.02 M/F node address = 2…60
• 60.03 M/F mode = DDCS follower (for both fiber optic and wire connection)
• 60.05 M/F HW connection (Ring or Star for fiber optic, Star for wire)
• Mapping of data received from master
• 62.01 M/F data 1 selection = CW 16bit
• 62.02 M/F data 2 selection = Ref1 16bit
• 62.03 M/F data 3 selection = Ref2 16bit
• Selection of operating mode and control location
• 19.12 Ext1 control mode = Speed or To r qu e
• 20.01 Ext1 commands = M/F link
• 20.02 Ext1 start trigger type = Level
• Selection of reference sources
• 22.11 Speed ref1 source = M/F reference 1
• 26.11 Torque ref1 source = M/F reference 2
• Selection of data to be sent to master (optional)
• 61.01 M/F data 1 selection = SW 16bit
• 61.02 M/F data 2 selection = Act1 16bit
• 61.03 M/F data 3 selection =
Act2 16bit
Specifications of the fiber optic master/follower link
• Maximum fiber optic cable length:
• FDCO-01/02 or RDCO-04 with POF (Plastic Optic Fiber): 30 m
• FDCO-01/02 or RDCO-04 with HCS (Hard-clad Silica Fiber): 200 m
• For distances up to 1000 m, use two NOCR-01 optical converter/repeaters
with glass optic cable (GOF, 62.5 micrometers, Multi-Mode)
• Maximum shielded twisted-pair cable length: 50 m
• Transmission rate: 4 Mbit/s
• Total performance of the link: < 5 ms to transfer references between the master
and followers.
• Protocol: DDCS (Distributed Drives Communication System)
Settings and diagnostics
Parameter groups 60 DDCS communication (page 393), 61 D2D and DDCS transmit
data (page 406) and 62 D2D and DDCS receive data (page 410).
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