ABB ACH580 Series User Manual page 86

ACH580 E-Clipse bypass and packaged drive user manual
• Do not directly ground the EIA 485 network at any point. Ground all devices on
the network using their corresponding earthing terminals.
• As always, the grounding wires should not form any closed loops, and all the
devices should be earthed to a common ground.
• Connect the EIA 485 link in a daisy-chained bus, without dropout lines.
• Do not connect the shield at the bypass. Tie the shields together at the bypass.
Only load the shield connection at the EIA 485 master.
• For configuration information see the following:
–
–
– The appropriate EFB protocol specific technical data.
– To reduce noise on the network, terminate the EIA 485 network using 120
Communication setup – EFB
Activate drive control functions – EFB
resistors at both ends of the network. Use the DIP switch to connect or
disconnect the termination resistors. Refer to page
table.
section.
section.
78 for the diagram and
Embedded fieldbus
77
Ω