Master/Follower
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Master/Follower link specification
Size of the Link: One Master and max. 10 Follower stations. If more than 10
followers are required, an ABB representative should be consulted.
Transmission medium: Fibre Optic Cable.
• Construction: Plastic core, diameter 1 mm, sheathed with plastic jacket
• Attenuation: 0.23 dB/m
• Maximum Length between Stations: 10 m
•Other:
Various lengths of fibre optic cables are available as optional add-on kits.
Connectors: Blue - receiver (HP 9534, T-1521); grey - transmitter (HP 9534,
R-2521)
Serial communication type: Synchronous, full Duplex
Transmission rate: 4 Mbit/s
Transmission interval: 4 ms
Maximum transmission delay: 16 ms
Protocol: ABB Distributed Drives Communication System (DDCS)
Parameter Minimum Maximum Unit
Storage temperature -65 +85
o
C
Installation temperature -20 +70
o
C
Short term tensile force 50 N
Short term bend radius 25 mm
Long term bend radius 35 mm
Long term tensile load 1 N
Flexing 1000 cycles
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