ABB ACS880 N5700 Series - Construction of the Master;Follower Link

Construction of the master/follower link
The master/follower link is formed by connecting the drives together using either
• shielded twisted-pair cable between the XD2D terminals of the drives*, or
• fiber optic cables. Drives with a ZCU control unit require an additional FDCO
DDCS communication module; drives with a BCU control unit require an RDCO
module.
*This connection cannot co-exist with, and is not to be confused with, drive-to-drive
(D2D) communication implemented by application programming (detailed in Drive
application programming manual (IEC 61131-3) , 3AUA0000127808 [English]).
Connection examples are shown below. Note that a star configuration using fiber
optic cables requires an NDBU-95C DDCS branching unit.
Master/follower wiring with electrical cable
XD2D XD2D XD2D
1 2 3 4
B A
BGND
SHIELD
1 2 3 4
B A
BGND
SHIELD
1 2 3 4
B A
BGND
SHIELD
Termination ON Termination ONTermination OFF
See the hardware manual of the drive for wiring and termination details.
Ring configuration with fiber optic cables
RT
RT
RT
RDCO
CH2
FDCO
(ZCU) Control unit
FDCO
(BCU) Control unit
(ZCU) Control unit
Master Follower 1
Follower 2
Where, T = Transmitter; R = Receiver
70 Program features